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authorSascha Hauer <s.hauer@pengutronix.de>2020-01-08 11:16:10 +0100
committerRobert Schwebel <r.schwebel@pengutronix.de>2020-01-08 23:09:03 +0100
commitce5acf4bfd25d7220e71befd86d6b4e1086273ed (patch)
tree14d0b74012d0d0afdf4b0862a40dbb9bcfb2acfb /configs
parent68bfd2e1fb896d730ff6256d519f954988bf02b9 (diff)
downloadDistroKit-ce5acf4bfd25d7220e71befd86d6b4e1086273ed.tar.gz
DistroKit-ce5acf4bfd25d7220e71befd86d6b4e1086273ed.tar.xz
platform-v7a: Add barebox patchstack
This adds a barebox patchstack which is needed for the rasperrypi which otherwise issues several warnings during boot. While at it add DWC2 USB support as well to finally get networking support for the raspberrypi. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'configs')
-rw-r--r--configs/platform-v7a/barebox-am335x-mlo.config2
-rw-r--r--configs/platform-v7a/barebox-am335x.config3
-rw-r--r--configs/platform-v7a/barebox-am335x.config.diff3
-rw-r--r--configs/platform-v7a/barebox-mx6.config3
-rw-r--r--configs/platform-v7a/barebox-mx6.config.diff3
-rw-r--r--configs/platform-v7a/barebox-rpi2.config2
-rw-r--r--configs/platform-v7a/barebox-rpi2.config.diff2
-rw-r--r--configs/platform-v7a/barebox-vexpress.config3
-rw-r--r--configs/platform-v7a/barebox-vexpress.config.diff3
-rw-r--r--configs/platform-v7a/barebox.config4
-rw-r--r--configs/platform-v7a/patches/barebox-2019.12.0/0001-ARM-rpi-Do-not-warn-when-firmware-doesn-t-pass-a-dtb.patch59
-rw-r--r--configs/platform-v7a/patches/barebox-2019.12.0/0002-usb-Make-timeout-unit-clear.patch81
-rw-r--r--configs/platform-v7a/patches/barebox-2019.12.0/0003-of-Add-of_bus_n_xxx_cells.patch117
-rw-r--r--configs/platform-v7a/patches/barebox-2019.12.0/0004-device-Introduce-dma_offset.patch126
-rw-r--r--configs/platform-v7a/patches/barebox-2019.12.0/0005-of-Read-dma_offset-from-device-tree.patch203
-rw-r--r--configs/platform-v7a/patches/barebox-2019.12.0/0006-usb-Add-usbroothubdes.h.patch146
-rw-r--r--configs/platform-v7a/patches/barebox-2019.12.0/0007-regulator-add-function-to-get-regulator-by-its-name.patch73
-rw-r--r--configs/platform-v7a/patches/barebox-2019.12.0/0008-rpi-Enable-USB-Power-domain-during-startup.patch47
-rw-r--r--configs/platform-v7a/patches/barebox-2019.12.0/0009-usb-Forward-error-code-from-usb_set_configuration.patch40
-rw-r--r--configs/platform-v7a/patches/barebox-2019.12.0/0010-usb-Add-dwc2-host-driver.patch1964
-rw-r--r--configs/platform-v7a/patches/barebox-2019.12.0/0011-ARM-bcm2835-mbox-Remove-response-valid-check.patch29
-rw-r--r--configs/platform-v7a/patches/barebox-2019.12.0/0012-gpio-Add-raspberrypi-exp-gpio-driver.patch335
-rw-r--r--configs/platform-v7a/patches/barebox-2019.12.0/0013-ARM-bcm2835-mbox-use-pr_-to-print-messages.patch137
-rw-r--r--configs/platform-v7a/patches/barebox-2019.12.0/0014-ARM-rpi_defconfig-Enable-raspberry-GPIO-exp-driver.patch23
-rw-r--r--configs/platform-v7a/patches/barebox-2019.12.0/0015-ARM-rpi-mailbox-Use-non-interruptible-timeout.patch47
-rw-r--r--configs/platform-v7a/patches/barebox-2019.12.0/0016-ARM-rpi_defconfig-Enable-more-features.patch109
-rw-r--r--configs/platform-v7a/patches/barebox-2019.12.0/0101-Release-2019.12.0-customers-pengutronix-distrokit-v7.patch22
-rw-r--r--configs/platform-v7a/patches/barebox-2019.12.0/series26
28 files changed, 3602 insertions, 10 deletions
diff --git a/configs/platform-v7a/barebox-am335x-mlo.config b/configs/platform-v7a/barebox-am335x-mlo.config
index 61a8a0c..ac33598 100644
--- a/configs/platform-v7a/barebox-am335x-mlo.config
+++ b/configs/platform-v7a/barebox-am335x-mlo.config
@@ -1,6 +1,6 @@
#
# Automatically generated file; DO NOT EDIT.
-# Barebox/arm 2019.12.0 Configuration
+# Barebox/arm 2019.12.0-20200108-1 Configuration
#
CONFIG_ARM=y
CONFIG_ARM_USE_COMPRESSED_DTB=y
diff --git a/configs/platform-v7a/barebox-am335x.config b/configs/platform-v7a/barebox-am335x.config
index 4dc6216..ed52e1c 100644
--- a/configs/platform-v7a/barebox-am335x.config
+++ b/configs/platform-v7a/barebox-am335x.config
@@ -1,6 +1,6 @@
#
# Automatically generated file; DO NOT EDIT.
-# Barebox/arm 2019.12.0 Configuration
+# Barebox/arm 2019.12.0-20200108-1 Configuration
#
CONFIG_ARM=y
CONFIG_ARM_LINUX=y
@@ -579,6 +579,7 @@ CONFIG_USB=y
CONFIG_USB_HOST=y
# CONFIG_USB_DWC3 is not set
CONFIG_USB_EHCI=y
+# CONFIG_USB_DWC2_HOST is not set
# CONFIG_USB_XHCI is not set
# CONFIG_USB_ULPI is not set
CONFIG_USB_STORAGE=y
diff --git a/configs/platform-v7a/barebox-am335x.config.diff b/configs/platform-v7a/barebox-am335x.config.diff
index c05292f..e2c1823 100644
--- a/configs/platform-v7a/barebox-am335x.config.diff
+++ b/configs/platform-v7a/barebox-am335x.config.diff
@@ -1,4 +1,4 @@
-6740c59d874d4e8459025d536717c542
+f04efdb7bd2dd288fed0cb3cb5c307cd
# CONFIG_AM33XX_NET_BOOT is not set
CONFIG_ARCH_AM33XX=y
# CONFIG_ARCH_BCM283X is not set
@@ -41,6 +41,7 @@ CONFIG_EEPROM_AT24=y
CONFIG_GPIO_GENERIC=y
CONFIG_GPIO_GENERIC_PLATFORM=y
CONFIG_GPIO_OMAP=y
+# CONFIG_GPIO_RASPBERRYPI_EXP is undefined
# CONFIG_GREGORIAN_CALENDER is undefined
# CONFIG_HAVE_CLK is undefined
# CONFIG_I2C_MV64XXX is undefined
diff --git a/configs/platform-v7a/barebox-mx6.config b/configs/platform-v7a/barebox-mx6.config
index 5926735..4bf336f 100644
--- a/configs/platform-v7a/barebox-mx6.config
+++ b/configs/platform-v7a/barebox-mx6.config
@@ -1,6 +1,6 @@
#
# Automatically generated file; DO NOT EDIT.
-# Barebox/arm 2019.12.0 Configuration
+# Barebox/arm 2019.12.0-20200108-1 Configuration
#
CONFIG_ARM=y
CONFIG_ARM_LINUX=y
@@ -665,6 +665,7 @@ CONFIG_USB_IMX_CHIPIDEA=y
CONFIG_USB_IMX_PHY=y
# CONFIG_USB_DWC3 is not set
CONFIG_USB_EHCI=y
+# CONFIG_USB_DWC2_HOST is not set
# CONFIG_USB_XHCI is not set
CONFIG_USB_ULPI=y
CONFIG_USB_STORAGE=y
diff --git a/configs/platform-v7a/barebox-mx6.config.diff b/configs/platform-v7a/barebox-mx6.config.diff
index 29c1c48..5c66e25 100644
--- a/configs/platform-v7a/barebox-mx6.config.diff
+++ b/configs/platform-v7a/barebox-mx6.config.diff
@@ -1,4 +1,4 @@
-6740c59d874d4e8459025d536717c542
+f04efdb7bd2dd288fed0cb3cb5c307cd
# CONFIG_ARCH_BCM283X is not set
CONFIG_ARCH_HAS_FEC_IMX=y
CONFIG_ARCH_HAS_IMX_GPT=y
@@ -67,6 +67,7 @@ CONFIG_FS_UBIFS_COMPRESSION_LZO=y
# CONFIG_FS_UBIFS_COMPRESSION_ZLIB is not set
CONFIG_GENERIC_PHY=y
CONFIG_GPIO_IMX=y
+# CONFIG_GPIO_RASPBERRYPI_EXP is undefined
# CONFIG_HABV4 is not set
# CONFIG_HWRNG is not set
CONFIG_HW_HAS_PCI=y
diff --git a/configs/platform-v7a/barebox-rpi2.config b/configs/platform-v7a/barebox-rpi2.config
index fd3e220..400cd3d 100644
--- a/configs/platform-v7a/barebox-rpi2.config
+++ b/configs/platform-v7a/barebox-rpi2.config
@@ -1,6 +1,6 @@
#
# Automatically generated file; DO NOT EDIT.
-# Barebox/arm 2019.12.0 Configuration
+# Barebox/arm 2019.12.0-20200108-1 Configuration
#
CONFIG_ARM=y
CONFIG_ARM_LINUX=y
diff --git a/configs/platform-v7a/barebox-rpi2.config.diff b/configs/platform-v7a/barebox-rpi2.config.diff
index f493e1d..84cfd0d 100644
--- a/configs/platform-v7a/barebox-rpi2.config.diff
+++ b/configs/platform-v7a/barebox-rpi2.config.diff
@@ -1,4 +1,4 @@
-6740c59d874d4e8459025d536717c542
+f04efdb7bd2dd288fed0cb3cb5c307cd
CONFIG_ARM_ASM_UNIFIED=y
CONFIG_BOOTM_INITRD=y
# CONFIG_CMD_I2C is undefined
diff --git a/configs/platform-v7a/barebox-vexpress.config b/configs/platform-v7a/barebox-vexpress.config
index 617fb2c..66f98b4 100644
--- a/configs/platform-v7a/barebox-vexpress.config
+++ b/configs/platform-v7a/barebox-vexpress.config
@@ -1,6 +1,6 @@
#
# Automatically generated file; DO NOT EDIT.
-# Barebox/arm 2019.12.0 Configuration
+# Barebox/arm 2019.12.0-20200108-1 Configuration
#
CONFIG_ARM=y
CONFIG_ARM_LINUX=y
@@ -533,6 +533,7 @@ CONFIG_USB=y
CONFIG_USB_HOST=y
# CONFIG_USB_DWC3 is not set
CONFIG_USB_EHCI=y
+# CONFIG_USB_DWC2_HOST is not set
# CONFIG_USB_XHCI is not set
# CONFIG_USB_ULPI is not set
CONFIG_USB_STORAGE=y
diff --git a/configs/platform-v7a/barebox-vexpress.config.diff b/configs/platform-v7a/barebox-vexpress.config.diff
index 840a44d..294201d 100644
--- a/configs/platform-v7a/barebox-vexpress.config.diff
+++ b/configs/platform-v7a/barebox-vexpress.config.diff
@@ -1,4 +1,4 @@
-6740c59d874d4e8459025d536717c542
+f04efdb7bd2dd288fed0cb3cb5c307cd
CONFIG_AMBA_SP804=y
# CONFIG_ARCH_BCM283X is not set
CONFIG_ARCH_VEXPRESS=y
@@ -29,6 +29,7 @@ CONFIG_DRIVER_NET_SMC911X=y
# CONFIG_GPIO_PCA953X is undefined
# CONFIG_GPIO_PCF857X is undefined
# CONFIG_GPIO_PL061 is undefined
+# CONFIG_GPIO_RASPBERRYPI_EXP is undefined
# CONFIG_GPIO_SX150X is undefined
# CONFIG_I2C_ALGOBIT is undefined
# CONFIG_I2C_GPIO is undefined
diff --git a/configs/platform-v7a/barebox.config b/configs/platform-v7a/barebox.config
index 4e0d31e..ea81861 100644
--- a/configs/platform-v7a/barebox.config
+++ b/configs/platform-v7a/barebox.config
@@ -1,6 +1,6 @@
#
# Automatically generated file; DO NOT EDIT.
-# Barebox/arm 2019.12.0 Configuration
+# Barebox/arm 2019.12.0-20200108-1 Configuration
#
CONFIG_ARM=y
CONFIG_ARM_LINUX=y
@@ -545,6 +545,7 @@ CONFIG_USB=y
CONFIG_USB_HOST=y
# CONFIG_USB_DWC3 is not set
CONFIG_USB_EHCI=y
+# CONFIG_USB_DWC2_HOST is not set
# CONFIG_USB_XHCI is not set
# CONFIG_USB_ULPI is not set
CONFIG_USB_STORAGE=y
@@ -671,6 +672,7 @@ CONFIG_GPIOLIB=y
# CONFIG_GPIO_PCA953X is not set
# CONFIG_GPIO_PCF857X is not set
# CONFIG_GPIO_PL061 is not set
+# CONFIG_GPIO_RASPBERRYPI_EXP is not set
# CONFIG_GPIO_DESIGNWARE is not set
# CONFIG_GPIO_SX150X is not set
# end of GPIO
diff --git a/configs/platform-v7a/patches/barebox-2019.12.0/0001-ARM-rpi-Do-not-warn-when-firmware-doesn-t-pass-a-dtb.patch b/configs/platform-v7a/patches/barebox-2019.12.0/0001-ARM-rpi-Do-not-warn-when-firmware-doesn-t-pass-a-dtb.patch
new file mode 100644
index 0000000..54cc301
--- /dev/null
+++ b/configs/platform-v7a/patches/barebox-2019.12.0/0001-ARM-rpi-Do-not-warn-when-firmware-doesn-t-pass-a-dtb.patch
@@ -0,0 +1,59 @@
+From: Sascha Hauer <s.hauer@pengutronix.de>
+Date: Wed, 18 Dec 2019 14:55:15 +0100
+Subject: [PATCH] ARM: rpi: Do not warn when firmware doesn't pass a dtb
+
+When there is no dtb placed in the boot partition then none is passed by
+the firmware to barebox. This may be intended, so do not warn about it.
+
+Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
+---
+ arch/arm/boards/raspberry-pi/lowlevel.c | 9 ++++++++-
+ arch/arm/boards/raspberry-pi/rpi-common.c | 11 +++++++----
+ 2 files changed, 15 insertions(+), 5 deletions(-)
+
+diff --git a/arch/arm/boards/raspberry-pi/lowlevel.c b/arch/arm/boards/raspberry-pi/lowlevel.c
+index 70f1936522e2..d58beb605255 100644
+--- a/arch/arm/boards/raspberry-pi/lowlevel.c
++++ b/arch/arm/boards/raspberry-pi/lowlevel.c
+@@ -11,8 +11,15 @@ static void copy_vc_fdt(void *dest, void *src, unsigned long max_size)
+ {
+ struct fdt_header *oftree_src = src;
+ struct fdt_header *oftree_dest = dest;
++ unsigned long size;
+
+- unsigned long size = be32_to_cpu(oftree_src->totalsize);
++ if (!src) {
++ oftree_dest->magic = cpu_to_be32(VIDEOCORE_FDT_ERROR);
++ oftree_dest->totalsize = cpu_to_be32(0);
++ return;
++ }
++
++ size = be32_to_cpu(oftree_src->totalsize);
+ if (size > max_size) {
+ oftree_dest->magic = cpu_to_be32(VIDEOCORE_FDT_ERROR);
+ /* Save an error code after the magic value for easier
+diff --git a/arch/arm/boards/raspberry-pi/rpi-common.c b/arch/arm/boards/raspberry-pi/rpi-common.c
+index dd6bbd5bdd9c..acb26f6a6491 100644
+--- a/arch/arm/boards/raspberry-pi/rpi-common.c
++++ b/arch/arm/boards/raspberry-pi/rpi-common.c
+@@ -433,13 +433,16 @@ static void rpi_vc_fdt(void)
+
+ oftree = saved_vc_fdt;
+ magic = be32_to_cpu(oftree->magic);
+- if (magic != FDT_MAGIC) {
+- pr_err("videocore fdt saved in pbl has invalid magic\n");
+
+- if (magic == VIDEOCORE_FDT_ERROR) {
++ if (magic == VIDEOCORE_FDT_ERROR) {
++ if (oftree->totalsize)
+ pr_err("there was an error copying fdt in pbl: %d\n",
+ be32_to_cpu(oftree->totalsize));
+- }
++ return;
++ }
++
++ if (magic != FDT_MAGIC) {
++ pr_err("videocore fdt saved in pbl has invalid magic\n");
+ return;
+ }
+
diff --git a/configs/platform-v7a/patches/barebox-2019.12.0/0002-usb-Make-timeout-unit-clear.patch b/configs/platform-v7a/patches/barebox-2019.12.0/0002-usb-Make-timeout-unit-clear.patch
new file mode 100644
index 0000000..9fab21f
--- /dev/null
+++ b/configs/platform-v7a/patches/barebox-2019.12.0/0002-usb-Make-timeout-unit-clear.patch
@@ -0,0 +1,81 @@
+From: Sascha Hauer <s.hauer@pengutronix.de>
+Date: Fri, 20 Dec 2019 09:33:43 +0100
+Subject: [PATCH] usb: Make timeout unit clear
+
+The usb_*_msg() functions take a timeout parameter. Make clear which
+unit is expected by adding a _ms suffix to the variable name.
+
+Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
+---
+ drivers/usb/core/usb.c | 8 ++++----
+ include/usb/usb.h | 8 ++++----
+ 2 files changed, 8 insertions(+), 8 deletions(-)
+
+diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
+index d29cd1328bbb..ad3bacf23655 100644
+--- a/drivers/usb/core/usb.c
++++ b/drivers/usb/core/usb.c
+@@ -593,7 +593,7 @@ int usb_submit_int_msg(struct usb_device *dev, unsigned long pipe,
+ int usb_control_msg(struct usb_device *dev, unsigned int pipe,
+ unsigned char request, unsigned char requesttype,
+ unsigned short value, unsigned short index,
+- void *data, unsigned short size, int timeout)
++ void *data, unsigned short size, int timeout_ms)
+ {
+ struct usb_host *host = dev->host;
+ int ret;
+@@ -615,7 +615,7 @@ int usb_control_msg(struct usb_device *dev, unsigned int pipe,
+ dev->status = USB_ST_NOT_PROC; /*not yet processed */
+
+ ret = host->submit_control_msg(dev, pipe, data, size, setup_packet,
+- timeout);
++ timeout_ms);
+
+ usb_host_release(host);
+
+@@ -631,7 +631,7 @@ int usb_control_msg(struct usb_device *dev, unsigned int pipe,
+ * synchronous behavior
+ */
+ int usb_bulk_msg(struct usb_device *dev, unsigned int pipe,
+- void *data, int len, int *actual_length, int timeout)
++ void *data, int len, int *actual_length, int timeout_ms)
+ {
+ struct usb_host *host = dev->host;
+ int ret;
+@@ -644,7 +644,7 @@ int usb_bulk_msg(struct usb_device *dev, unsigned int pipe,
+ return ret;
+
+ dev->status = USB_ST_NOT_PROC; /* not yet processed */
+- ret = host->submit_bulk_msg(dev, pipe, data, len, timeout);
++ ret = host->submit_bulk_msg(dev, pipe, data, len, timeout_ms);
+
+ usb_host_release(host);
+
+diff --git a/include/usb/usb.h b/include/usb/usb.h
+index 0045608d6446..a9714ec28992 100644
+--- a/include/usb/usb.h
++++ b/include/usb/usb.h
+@@ -140,9 +140,9 @@ struct usb_host {
+ int (*init)(struct usb_host *);
+ int (*exit)(struct usb_host *);
+ int (*submit_bulk_msg)(struct usb_device *dev, unsigned long pipe,
+- void *buffer, int transfer_len, int timeout);
++ void *buffer, int transfer_len, int timeout_ms);
+ int (*submit_control_msg)(struct usb_device *dev, unsigned long pipe, void *buffer,
+- int transfer_len, struct devrequest *setup, int timeout);
++ int transfer_len, struct devrequest *setup, int timeout_ms);
+ int (*submit_int_msg)(struct usb_device *dev, unsigned long pipe, void *buffer,
+ int transfer_len, int interval);
+ void (*usb_event_poll)(void);
+@@ -167,9 +167,9 @@ int usb_set_idle(struct usb_device *dev, int ifnum, int duration,
+ int usb_control_msg(struct usb_device *dev, unsigned int pipe,
+ unsigned char request, unsigned char requesttype,
+ unsigned short value, unsigned short index,
+- void *data, unsigned short size, int timeout);
++ void *data, unsigned short size, int timeout_ms);
+ int usb_bulk_msg(struct usb_device *dev, unsigned int pipe,
+- void *data, int len, int *actual_length, int timeout);
++ void *data, int len, int *actual_length, int timeout_ms);
+ int usb_submit_int_msg(struct usb_device *dev, unsigned long pipe,
+ void *buffer, int transfer_len, int interval);
+ int usb_maxpacket(struct usb_device *dev, unsigned long pipe);
diff --git a/configs/platform-v7a/patches/barebox-2019.12.0/0003-of-Add-of_bus_n_xxx_cells.patch b/configs/platform-v7a/patches/barebox-2019.12.0/0003-of-Add-of_bus_n_xxx_cells.patch
new file mode 100644
index 0000000..8bc5926
--- /dev/null
+++ b/configs/platform-v7a/patches/barebox-2019.12.0/0003-of-Add-of_bus_n_xxx_cells.patch
@@ -0,0 +1,117 @@
+From: Sascha Hauer <s.hauer@pengutronix.de>
+Date: Fri, 20 Dec 2019 12:27:02 +0100
+Subject: [PATCH] of: Add of_bus_n_xxx_cells()
+
+Added straight from the Kernel.
+
+Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
+---
+ drivers/of/base.c | 46 ++++++++++++++++++++++++++++------------------
+ include/of.h | 12 ++++++++++++
+ 2 files changed, 40 insertions(+), 18 deletions(-)
+
+diff --git a/drivers/of/base.c b/drivers/of/base.c
+index 98ef5fc0d421..e1d3707d01ee 100644
+--- a/drivers/of/base.c
++++ b/drivers/of/base.c
+@@ -78,36 +78,46 @@ static struct device_node *of_aliases;
+ #define OF_ROOT_NODE_SIZE_CELLS_DEFAULT 1
+ #define OF_ROOT_NODE_ADDR_CELLS_DEFAULT 1
+
+-int of_n_addr_cells(struct device_node *np)
++int of_bus_n_addr_cells(struct device_node *np)
+ {
+- const __be32 *ip;
++ u32 cells;
++
++ for (; np; np = np->parent)
++ if (!of_property_read_u32(np, "#address-cells", &cells))
++ return cells;
+
+- do {
+- if (np->parent)
+- np = np->parent;
+- ip = of_get_property(np, "#address-cells", NULL);
+- if (ip)
+- return be32_to_cpup(ip);
+- } while (np->parent);
+ /* No #address-cells property for the root node */
+ return OF_ROOT_NODE_ADDR_CELLS_DEFAULT;
+ }
++
++int of_n_addr_cells(struct device_node *np)
++{
++ if (np->parent)
++ np = np->parent;
++
++ return of_bus_n_addr_cells(np);
++}
+ EXPORT_SYMBOL(of_n_addr_cells);
+
+-int of_n_size_cells(struct device_node *np)
++int of_bus_n_size_cells(struct device_node *np)
+ {
+- const __be32 *ip;
++ u32 cells;
++
++ for (; np; np = np->parent)
++ if (!of_property_read_u32(np, "#size-cells", &cells))
++ return cells;
+
+- do {
+- if (np->parent)
+- np = np->parent;
+- ip = of_get_property(np, "#size-cells", NULL);
+- if (ip)
+- return be32_to_cpup(ip);
+- } while (np->parent);
+ /* No #size-cells property for the root node */
+ return OF_ROOT_NODE_SIZE_CELLS_DEFAULT;
+ }
++
++int of_n_size_cells(struct device_node *np)
++{
++ if (np->parent)
++ np = np->parent;
++
++ return of_bus_n_size_cells(np);
++}
+ EXPORT_SYMBOL(of_n_size_cells);
+
+ struct property *of_find_property(const struct device_node *np,
+diff --git a/include/of.h b/include/of.h
+index 98ddf795cbb4..fb49f40c12a0 100644
+--- a/include/of.h
++++ b/include/of.h
+@@ -113,7 +113,9 @@ struct device_node *of_unflatten_dtb_const(const void *infdt);
+ struct cdev;
+
+ #ifdef CONFIG_OFTREE
++extern int of_bus_n_addr_cells(struct device_node *np);
+ extern int of_n_addr_cells(struct device_node *np);
++extern int of_bus_n_size_cells(struct device_node *np);
+ extern int of_n_size_cells(struct device_node *np);
+
+ extern struct property *of_find_property(const struct device_node *np,
+@@ -330,11 +332,21 @@ static inline struct device_d *of_platform_device_create(struct device_node *np,
+ return NULL;
+ }
+
++static inline int of_bus_n_addr_cells(struct device_node *np)
++{
++ return 0;
++}
++
+ static inline int of_n_addr_cells(struct device_node *np)
+ {
+ return 0;
+ }
+
++static inline int of_bus_n_size_cells(struct device_node *np)
++{
++ return 0;
++}
++
+ static inline int of_n_size_cells(struct device_node *np)
+ {
+ return 0;
diff --git a/configs/platform-v7a/patches/barebox-2019.12.0/0004-device-Introduce-dma_offset.patch b/configs/platform-v7a/patches/barebox-2019.12.0/0004-device-Introduce-dma_offset.patch
new file mode 100644
index 0000000..d4d850a
--- /dev/null
+++ b/configs/platform-v7a/patches/barebox-2019.12.0/0004-device-Introduce-dma_offset.patch
@@ -0,0 +1,126 @@
+From: Sascha Hauer <s.hauer@pengutronix.de>
+Date: Fri, 20 Dec 2019 12:29:03 +0100
+Subject: [PATCH] device: Introduce dma_offset
+
+For devices that do not have a 1:1 mapping between DMA and CPU we need a
+dma_offset. This adds dma_offset to struct device_d and starts honoring
+it in ARM dma_(un)map_single(). Also we add some comments to functions
+that would normally need a device argument to make the DMA <-> CPU
+translations device specific.
+
+Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
+---
+ arch/arm/cpu/mmu-common.c | 33 +++++++++++++++++++++++++++++++--
+ arch/arm/cpu/mmu.c | 4 ++++
+ arch/arm/cpu/mmu_64.c | 4 ++++
+ include/driver.h | 2 ++
+ 4 files changed, 41 insertions(+), 2 deletions(-)
+
+diff --git a/arch/arm/cpu/mmu-common.c b/arch/arm/cpu/mmu-common.c
+index aeefbb2daaa1..287622b20399 100644
+--- a/arch/arm/cpu/mmu-common.c
++++ b/arch/arm/cpu/mmu-common.c
+@@ -11,9 +11,32 @@
+ #include "mmu.h"
+
+
++static inline dma_addr_t cpu_to_dma(struct device_d *dev, unsigned long cpu_addr)
++{
++ dma_addr_t dma_addr = cpu_addr;
++
++ if (dev)
++ dma_addr -= dev->dma_offset;
++
++ return dma_addr;
++}
++
++static inline unsigned long dma_to_cpu(struct device_d *dev, dma_addr_t addr)
++{
++ unsigned long cpu_addr = addr;
++
++ if (dev)
++ cpu_addr += dev->dma_offset;
++
++ return cpu_addr;
++}
++
+ void dma_sync_single_for_cpu(dma_addr_t address, size_t size,
+ enum dma_data_direction dir)
+ {
++ /*
++ * FIXME: This function needs a device argument to support non 1:1 mappings
++ */
+ if (dir != DMA_TO_DEVICE)
+ dma_inv_range((void *)address, size);
+ }
+@@ -25,12 +48,14 @@ dma_addr_t dma_map_single(struct device_d *dev, void *ptr, size_t size,
+
+ dma_sync_single_for_device(addr, size, dir);
+
+- return addr;
++ return cpu_to_dma(dev, addr);
+ }
+
+-void dma_unmap_single(struct device_d *dev, dma_addr_t addr, size_t size,
++void dma_unmap_single(struct device_d *dev, dma_addr_t dma_addr, size_t size,
+ enum dma_data_direction dir)
+ {
++ unsigned long addr = dma_to_cpu(dev, dma_addr);
++
+ dma_sync_single_for_cpu(addr, size, dir);
+ }
+
+@@ -53,6 +78,10 @@ void *dma_alloc_map(size_t size, dma_addr_t *dma_handle, unsigned flags)
+
+ void *dma_alloc_coherent(size_t size, dma_addr_t *dma_handle)
+ {
++ /*
++ * FIXME: This function needs a device argument to support non 1:1 mappings
++ */
++
+ return dma_alloc_map(size, dma_handle, MAP_UNCACHED);
+ }
+
+diff --git a/arch/arm/cpu/mmu.c b/arch/arm/cpu/mmu.c
+index 158b130b5765..1f97c28ec657 100644
+--- a/arch/arm/cpu/mmu.c
++++ b/arch/arm/cpu/mmu.c
+@@ -491,6 +491,10 @@ void *dma_alloc_writecombine(size_t size, dma_addr_t *dma_handle)
+ void dma_sync_single_for_device(dma_addr_t address, size_t size,
+ enum dma_data_direction dir)
+ {
++ /*
++ * FIXME: This function needs a device argument to support non 1:1 mappings
++ */
++
+ if (dir == DMA_FROM_DEVICE) {
+ __dma_inv_range(address, address + size);
+ if (outer_cache.inv_range)
+diff --git a/arch/arm/cpu/mmu_64.c b/arch/arm/cpu/mmu_64.c
+index b45a69661e22..1851fdd1a70a 100644
+--- a/arch/arm/cpu/mmu_64.c
++++ b/arch/arm/cpu/mmu_64.c
+@@ -244,6 +244,10 @@ void dma_flush_range(void *ptr, size_t size)
+ void dma_sync_single_for_device(dma_addr_t address, size_t size,
+ enum dma_data_direction dir)
+ {
++ /*
++ * FIXME: This function needs a device argument to support non 1:1 mappings
++ */
++
+ if (dir == DMA_FROM_DEVICE)
+ v8_inv_dcache_range(address, address + size - 1);
+ else
+diff --git a/include/driver.h b/include/driver.h
+index 300603fa3277..5ea3a862f2f0 100644
+--- a/include/driver.h
++++ b/include/driver.h
+@@ -93,6 +93,8 @@ struct device_d {
+
+ u64 dma_mask;
+
++ unsigned long dma_offset;
++
+ void (*info) (struct device_d *);
+ /*
+ * For devices which take longer to probe this is called
diff --git a/configs/platform-v7a/patches/barebox-2019.12.0/0005-of-Read-dma_offset-from-device-tree.patch b/configs/platform-v7a/patches/barebox-2019.12.0/0005-of-Read-dma_offset-from-device-tree.patch
new file mode 100644
index 0000000..d46d44b
--- /dev/null
+++ b/configs/platform-v7a/patches/barebox-2019.12.0/0005-of-Read-dma_offset-from-device-tree.patch
@@ -0,0 +1,203 @@
+From: Sascha Hauer <s.hauer@pengutronix.de>
+Date: Fri, 20 Dec 2019 12:32:23 +0100
+Subject: [PATCH] of: Read dma_offset from device tree
+
+This reads the dma-ranges property from the device tree and sets
+dma_offset in the devices accordingly. The code is mostly taken
+from the Kernel as of v5.5-rc1. of_dma_configure() is trimmed down
+to the cases we want to support currently.
+
+Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
+---
+ drivers/of/address.c | 109 ++++++++++++++++++++++++++++++++++++++++++++++++++
+ drivers/of/platform.c | 18 +++++++++
+ include/of_address.h | 9 +++++
+ 3 files changed, 136 insertions(+)
+
+diff --git a/drivers/of/address.c b/drivers/of/address.c
+index 4e12522a0a75..2020f5b7b1ed 100644
+--- a/drivers/of/address.c
++++ b/drivers/of/address.c
+@@ -458,6 +458,33 @@ bool of_can_translate_address(struct device_node *dev)
+ }
+ EXPORT_SYMBOL(of_can_translate_address);
+
++static struct device_node *__of_get_dma_parent(struct device_node *np)
++{
++ struct of_phandle_args args;
++ int ret, index;
++
++ index = of_property_match_string(np, "interconnect-names", "dma-mem");
++ if (index < 0)
++ return of_get_parent(np);
++
++ ret = of_parse_phandle_with_args(np, "interconnects",
++ "#interconnect-cells",
++ index, &args);
++ if (ret < 0)
++ return of_get_parent(np);
++
++ return args.np;
++}
++
++static struct device_node *of_get_next_dma_parent(struct device_node *np)
++{
++ struct device_node *parent;
++
++ parent = __of_get_dma_parent(np);
++
++ return parent;
++}
++
+ const __be32 *of_get_address(struct device_node *dev, int index, u64 *size,
+ unsigned int *flags)
+ {
+@@ -586,3 +613,85 @@ void __iomem *of_iomap(struct device_node *np, int index)
+ return IOMEM(res.start);
+ }
+ EXPORT_SYMBOL(of_iomap);
++
++/**
++ * of_dma_get_range - Get DMA range info
++ * @np: device node to get DMA range info
++ * @dma_addr: pointer to store initial DMA address of DMA range
++ * @paddr: pointer to store initial CPU address of DMA range
++ * @size: pointer to store size of DMA range
++ *
++ * Look in bottom up direction for the first "dma-ranges" property
++ * and parse it.
++ * dma-ranges format:
++ * DMA addr (dma_addr) : naddr cells
++ * CPU addr (phys_addr_t) : pna cells
++ * size : nsize cells
++ *
++ * It returns -ENODEV if "dma-ranges" property was not found
++ * for this device in DT.
++ */
++int of_dma_get_range(struct device_node *np, u64 *dma_addr, u64 *paddr, u64 *size)
++{
++ struct device_node *node = np;
++ const __be32 *ranges = NULL;
++ int len, naddr, nsize, pna;
++ int ret = 0;
++ bool found_dma_ranges = false;
++ u64 dmaaddr;
++
++ while (node) {
++ ranges = of_get_property(node, "dma-ranges", &len);
++
++ /* Ignore empty ranges, they imply no translation required */
++ if (ranges && len > 0)
++ break;
++
++ /* Once we find 'dma-ranges', then a missing one is an error */
++ if (found_dma_ranges && !ranges) {
++ ret = -ENODEV;
++ goto out;
++ }
++ found_dma_ranges = true;
++
++ node = of_get_next_dma_parent(node);
++ }
++
++ if (!node || !ranges) {
++ pr_debug("no dma-ranges found for node(%pOF)\n", np);
++ ret = -ENODEV;
++ goto out;
++ }
++
++ naddr = of_bus_n_addr_cells(node);
++ nsize = of_bus_n_size_cells(node);
++ pna = of_n_addr_cells(node);
++ if ((len / sizeof(__be32)) % (pna + naddr + nsize)) {
++ ret = -EINVAL;
++ goto out;
++ }
++
++ /* dma-ranges format:
++ * DMA addr : naddr cells
++ * CPU addr : pna cells
++ * size : nsize cells
++ */
++ dmaaddr = of_read_number(ranges, naddr);
++ *paddr = of_translate_dma_address(node, ranges + naddr);
++ if (*paddr == OF_BAD_ADDR) {
++ pr_err("translation of DMA address(%llx) to CPU address failed node(%pOF)\n",
++ dmaaddr, np);
++ ret = -EINVAL;
++ goto out;
++ }
++ *dma_addr = dmaaddr;
++
++ *size = of_read_number(ranges + naddr + pna, nsize);
++
++ pr_debug("dma_addr(%llx) cpu_addr(%llx) size(%llx)\n",
++ *dma_addr, *paddr, *size);
++
++out:
++
++ return ret;
++}
+diff --git a/drivers/of/platform.c b/drivers/of/platform.c
+index d3795d799a13..b1a7eb673064 100644
+--- a/drivers/of/platform.c
++++ b/drivers/of/platform.c
+@@ -74,6 +74,22 @@ static void of_device_make_bus_id(struct device_d *dev)
+ }
+ }
+
++static void of_dma_configure(struct device_d *dev, struct device_node *np)
++{
++ u64 dma_addr, paddr, size = 0;
++ unsigned long offset;
++ int ret;
++
++ ret = of_dma_get_range(np, &dma_addr, &paddr, &size);
++ if (ret < 0) {
++ dma_addr = offset = 0;
++ } else {
++ offset = paddr - dma_addr;
++ }
++
++ dev->dma_offset = offset;
++}
++
+ /**
+ * of_platform_device_create - Alloc, initialize and register an of_device
+ * @np: pointer to node to create device for
+@@ -148,6 +164,8 @@ struct device_d *of_platform_device_create(struct device_node *np,
+ dev->num_resources = num_reg;
+ of_device_make_bus_id(dev);
+
++ of_dma_configure(dev, np);
++
+ resinval = (-1);
+
+ debug("%s: register device %s, io=%pa\n",
+diff --git a/include/of_address.h b/include/of_address.h
+index ebf3ec2a2423..350ecaec827a 100644
+--- a/include/of_address.h
++++ b/include/of_address.h
+@@ -56,6 +56,9 @@ extern struct device_node *of_find_matching_node_by_address(
+ u64 base_address);
+ extern void __iomem *of_iomap(struct device_node *np, int index);
+
++extern int of_dma_get_range(struct device_node *np, u64 *dma_addr, u64 *paddr,
++ u64 *size);
++
+ #else /* CONFIG_OFTREE */
+
+ static inline u64 of_translate_address(struct device_node *dev,
+@@ -99,6 +102,12 @@ static inline void __iomem *of_iomap(struct device_node *np, int index)
+ return NULL;
+ }
+
++static inline int of_dma_get_range(struct device_node *np, u64 *dma_addr,
++ u64 *paddr, u64 *size)
++{
++ return -ENOSYS;
++}
++
+ #endif /* CONFIG_OFTREE */
+
+ #ifdef CONFIG_OF_PCI
diff --git a/configs/platform-v7a/patches/barebox-2019.12.0/0006-usb-Add-usbroothubdes.h.patch b/configs/platform-v7a/patches/barebox-2019.12.0/0006-usb-Add-usbroothubdes.h.patch
new file mode 100644
index 0000000..331e7de
--- /dev/null
+++ b/configs/platform-v7a/patches/barebox-2019.12.0/0006-usb-Add-usbroothubdes.h.patch
@@ -0,0 +1,146 @@
+From: Sascha Hauer <s.hauer@pengutronix.de>
+Date: Thu, 19 Dec 2019 12:04:01 +0100
+Subject: [PATCH] usb: Add usbroothubdes.h
+
+Taken from U-Boot, needed for the upcoming dwc2 driver.
+
+Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
+---
+ include/usb/usbroothubdes.h | 128 ++++++++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 128 insertions(+)
+ create mode 100644 include/usb/usbroothubdes.h
+
+diff --git a/include/usb/usbroothubdes.h b/include/usb/usbroothubdes.h
+new file mode 100644
+index 000000000000..e743555d8e05
+--- /dev/null
++++ b/include/usb/usbroothubdes.h
+@@ -0,0 +1,128 @@
++/* SPDX-License-Identifier: GPL-2.0+ */
++/*
++ * USB virtual root hub descriptors
++ *
++ * (C) Copyright 2014
++ * Stephen Warren swarren@wwwdotorg.org
++ *
++ * Based on ohci-hcd.c
++ */
++
++#ifndef __USBROOTHUBDES_H__
++#define __USBROOTHUBDES_H__
++
++/* Device descriptor */
++static __u8 root_hub_dev_des[] = {
++ 0x12, /* __u8 bLength; */
++ 0x01, /* __u8 bDescriptorType; Device */
++ 0x10, /* __u16 bcdUSB; v1.1 */
++ 0x01,
++ 0x09, /* __u8 bDeviceClass; HUB_CLASSCODE */
++ 0x00, /* __u8 bDeviceSubClass; */
++ 0x00, /* __u8 bDeviceProtocol; */
++ 0x08, /* __u8 bMaxPacketSize0; 8 Bytes */
++ 0x00, /* __u16 idVendor; */
++ 0x00,
++ 0x00, /* __u16 idProduct; */
++ 0x00,
++ 0x00, /* __u16 bcdDevice; */
++ 0x00,
++ 0x00, /* __u8 iManufacturer; */
++ 0x01, /* __u8 iProduct; */
++ 0x00, /* __u8 iSerialNumber; */
++ 0x01, /* __u8 bNumConfigurations; */
++};
++
++/* Configuration descriptor */
++static __u8 root_hub_config_des[] = {
++ 0x09, /* __u8 bLength; */
++ 0x02, /* __u8 bDescriptorType; Configuration */
++ 0x19, /* __u16 wTotalLength; */
++ 0x00,
++ 0x01, /* __u8 bNumInterfaces; */
++ 0x01, /* __u8 bConfigurationValue; */
++ 0x00, /* __u8 iConfiguration; */
++ 0x40, /* __u8 bmAttributes;
++ * Bit 7: Bus-powered
++ * 6: Self-powered,
++ * 5 Remote-wakwup,
++ * 4..0: resvd
++ */
++ 0x00, /* __u8 MaxPower; */
++ /* interface */
++ 0x09, /* __u8 if_bLength; */
++ 0x04, /* __u8 if_bDescriptorType; Interface */
++ 0x00, /* __u8 if_bInterfaceNumber; */
++ 0x00, /* __u8 if_bAlternateSetting; */
++ 0x01, /* __u8 if_bNumEndpoints; */
++ 0x09, /* __u8 if_bInterfaceClass; HUB_CLASSCODE */
++ 0x00, /* __u8 if_bInterfaceSubClass; */
++ 0x00, /* __u8 if_bInterfaceProtocol; */
++ 0x00, /* __u8 if_iInterface; */
++ /* endpoint */
++ 0x07, /* __u8 ep_bLength; */
++ 0x05, /* __u8 ep_bDescriptorType; Endpoint */
++ 0x81, /* __u8 ep_bEndpointAddress; IN Endpoint 1 */
++ 0x03, /* __u8 ep_bmAttributes; Interrupt */
++ 0x02, /* __u16 ep_wMaxPacketSize; ((MAX_ROOT_PORTS + 1) / 8 */
++ 0x00,
++ 0xff, /* __u8 ep_bInterval; 255 ms */
++};
++
++#ifdef WANT_USB_ROOT_HUB_HUB_DES
++static unsigned char root_hub_hub_des[] = {
++ 0x09, /* __u8 bLength; */
++ 0x29, /* __u8 bDescriptorType; Hub-descriptor */
++ 0x02, /* __u8 bNbrPorts; */
++ 0x00, /* __u16 wHubCharacteristics; */
++ 0x00,
++ 0x01, /* __u8 bPwrOn2pwrGood; 2ms */
++ 0x00, /* __u8 bHubContrCurrent; 0 mA */
++ 0x00, /* __u8 DeviceRemovable; *** 7 Ports max *** */
++ 0xff, /* __u8 PortPwrCtrlMask; *** 7 ports max *** */
++};
++#endif
++
++static unsigned char root_hub_str_index0[] = {
++ 0x04, /* __u8 bLength; */
++ 0x03, /* __u8 bDescriptorType; String-descriptor */
++ 0x09, /* __u8 lang ID */
++ 0x04, /* __u8 lang ID */
++};
++
++static unsigned char root_hub_str_index1[] = {
++ 32, /* __u8 bLength; */
++ 0x03, /* __u8 bDescriptorType; String-descriptor */
++ 'U', /* __u8 Unicode */
++ 0, /* __u8 Unicode */
++ '-', /* __u8 Unicode */
++ 0, /* __u8 Unicode */
++ 'B', /* __u8 Unicode */
++ 0, /* __u8 Unicode */
++ 'o', /* __u8 Unicode */
++ 0, /* __u8 Unicode */
++ 'o', /* __u8 Unicode */
++ 0, /* __u8 Unicode */
++ 't', /* __u8 Unicode */
++ 0, /* __u8 Unicode */
++ ' ', /* __u8 Unicode */
++ 0, /* __u8 Unicode */
++ 'R', /* __u8 Unicode */
++ 0, /* __u8 Unicode */
++ 'o', /* __u8 Unicode */
++ 0, /* __u8 Unicode */
++ 'o', /* __u8 Unicode */
++ 0, /* __u8 Unicode */
++ 't', /* __u8 Unicode */
++ 0, /* __u8 Unicode */
++ ' ', /* __u8 Unicode */
++ 0, /* __u8 Unicode */
++ 'H', /* __u8 Unicode */
++ 0, /* __u8 Unicode */
++ 'u', /* __u8 Unicode */
++ 0, /* __u8 Unicode */
++ 'b', /* __u8 Unicode */
++ 0, /* __u8 Unicode */
++};
++
++#endif
diff --git a/configs/platform-v7a/patches/barebox-2019.12.0/0007-regulator-add-function-to-get-regulator-by-its-name.patch b/configs/platform-v7a/patches/barebox-2019.12.0/0007-regulator-add-function-to-get-regulator-by-its-name.patch
new file mode 100644
index 0000000..0ccafda
--- /dev/null
+++ b/configs/platform-v7a/patches/barebox-2019.12.0/0007-regulator-add-function-to-get-regulator-by-its-name.patch
@@ -0,0 +1,73 @@
+From: Sascha Hauer <s.hauer@pengutronix.de>
+Date: Thu, 19 Dec 2019 19:27:58 +0100
+Subject: [PATCH] regulator: add function to get regulator by its name
+
+Useful for getting regulators that are not correctly associated with a
+device.
+
+Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
+---
+ drivers/regulator/core.c | 30 +++++++++++++++++++++++++++++-
+ include/regulator.h | 1 +
+ 2 files changed, 30 insertions(+), 1 deletion(-)
+
+diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
+index 4ca035ae9476..f0de7a52e391 100644
+--- a/drivers/regulator/core.c
++++ b/drivers/regulator/core.c
+@@ -327,6 +327,34 @@ struct regulator *regulator_get(struct device_d *dev, const char *supply)
+ return r;
+ }
+
++static struct regulator_internal *regulator_by_name(const char *name)
++{
++ struct regulator_internal *ri;
++
++ list_for_each_entry(ri, &regulator_list, list)
++ if (ri->name && !strcmp(ri->name, name))
++ return ri;
++
++ return NULL;
++}
++
++struct regulator *regulator_get_name(const char *name)
++{
++ struct regulator_internal *ri;
++ struct regulator *r;
++
++ ri = regulator_by_name(name);
++ if (!ri)
++ return ERR_PTR(-ENODEV);
++
++ r = xzalloc(sizeof(*r));
++ r->ri = ri;
++
++ list_add_tail(&r->list, &ri->consumer_list);
++
++ return r;
++}
++
+ /*
+ * regulator_enable - enable a regulator.
+ * @r: the regulator to enable
+@@ -379,7 +407,7 @@ static void regulator_print_one(struct regulator_internal *ri)
+ printf(" consumers:\n");
+
+ list_for_each_entry(r, &ri->consumer_list, list)
+- printf(" %s\n", dev_name(r->dev));
++ printf(" %s\n", r->dev ? dev_name(r->dev) : "none");
+ }
+ }
+
+diff --git a/include/regulator.h b/include/regulator.h
+index 156acb82f8df..a445c5c3d10a 100644
+--- a/include/regulator.h
++++ b/include/regulator.h
+@@ -116,6 +116,7 @@ void regulators_print(void);
+ #ifdef CONFIG_REGULATOR
+
+ struct regulator *regulator_get(struct device_d *, const char *);
++struct regulator *regulator_get_name(const char *name);
+ int regulator_enable(struct regulator *);
+ int regulator_disable(struct regulator *);
+ int regulator_is_enabled_regmap(struct regulator_dev *);
diff --git a/configs/platform-v7a/patches/barebox-2019.12.0/0008-rpi-Enable-USB-Power-domain-during-startup.patch b/configs/platform-v7a/patches/barebox-2019.12.0/0008-rpi-Enable-USB-Power-domain-during-startup.patch
new file mode 100644
index 0000000..a30e632
--- /dev/null
+++ b/configs/platform-v7a/patches/barebox-2019.12.0/0008-rpi-Enable-USB-Power-domain-during-startup.patch
@@ -0,0 +1,47 @@
+From: Sascha Hauer <s.hauer@pengutronix.de>
+Date: Thu, 19 Dec 2019 19:28:36 +0100
+Subject: [PATCH] rpi: Enable USB Power domain during startup
+
+Enable the USB Power domain during startup. The power domain is
+abstracted as a regulator in barebox, but modelled as a power domain in
+the device tree. Until this is sorted out just enable the power domain
+or regulator in the board code.
+
+Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
+---
+ arch/arm/boards/raspberry-pi/rpi-common.c | 10 ++++++++++
+ 1 file changed, 10 insertions(+)
+
+diff --git a/arch/arm/boards/raspberry-pi/rpi-common.c b/arch/arm/boards/raspberry-pi/rpi-common.c
+index acb26f6a6491..45961b52eeaa 100644
+--- a/arch/arm/boards/raspberry-pi/rpi-common.c
++++ b/arch/arm/boards/raspberry-pi/rpi-common.c
+@@ -21,6 +21,7 @@
+ #include <linux/clk.h>
+ #include <linux/clkdev.h>
+ #include <envfs.h>
++#include <regulator.h>
+ #include <malloc.h>
+ #include <libfile.h>
+ #include <gpio.h>
+@@ -462,11 +463,20 @@ static void rpi_vc_fdt(void)
+
+ static int rpi_devices_init(void)
+ {
++ struct regulator *reg;
++
+ rpi_model_init();
+ bcm2835_register_fb();
+ armlinux_set_architecture(MACH_TYPE_BCM2708);
+ rpi_env_init();
+ rpi_vc_fdt();
++
++ reg = regulator_get_name("bcm2835_usb");
++ if (IS_ERR(reg))
++ return PTR_ERR(reg);
++
++ regulator_enable(reg);
++
+ return 0;
+ }
+ late_initcall(rpi_devices_init);
diff --git a/configs/platform-v7a/patches/barebox-2019.12.0/0009-usb-Forward-error-code-from-usb_set_configuration.patch b/configs/platform-v7a/patches/barebox-2019.12.0/0009-usb-Forward-error-code-from-usb_set_configuration.patch
new file mode 100644
index 0000000..ceef0eb
--- /dev/null
+++ b/configs/platform-v7a/patches/barebox-2019.12.0/0009-usb-Forward-error-code-from-usb_set_configuration.patch
@@ -0,0 +1,40 @@
+From: Sascha Hauer <s.hauer@pengutronix.de>
+Date: Thu, 19 Dec 2019 19:30:15 +0100
+Subject: [PATCH] usb: Forward error code from usb_set_configuration
+
+Instead of returning -1 forward the error code and take the opportunity
+to print the error string.
+
+Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
+---
+ drivers/usb/core/usb.c | 10 ++++++----
+ 1 file changed, 6 insertions(+), 4 deletions(-)
+
+diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
+index ad3bacf23655..1c3dcb79a847 100644
+--- a/drivers/usb/core/usb.c
++++ b/drivers/usb/core/usb.c
+@@ -124,7 +124,7 @@ static int usb_set_configuration(struct usb_device *dev, int configuration)
+ dev->toggle[1] = 0;
+ return 0;
+ } else
+- return -1;
++ return res;
+ }
+
+ /* The routine usb_set_maxpacket_ep() is extracted from the loop of routine
+@@ -412,9 +412,11 @@ int usb_new_device(struct usb_device *dev)
+ usb_parse_config(dev, buf, 0);
+ usb_set_maxpacket(dev);
+ /* we set the default configuration here */
+- if (usb_set_configuration(dev, dev->config.desc.bConfigurationValue)) {
+- printf("failed to set default configuration " \
+- "len %d, status %lX\n", dev->act_len, dev->status);
++ err = usb_set_configuration(dev, dev->config.desc.bConfigurationValue);
++ if (err) {
++ printf("Setting default configuration failed with: %s\n" \
++ "len %d, status %lX\n", strerror(-err),
++ dev->act_len, dev->status);
+ goto err_out;
+ }
+ pr_debug("new device: Mfr=%d, Product=%d, SerialNumber=%d\n",
diff --git a/configs/platform-v7a/patches/barebox-2019.12.0/0010-usb-Add-dwc2-host-driver.patch b/configs/platform-v7a/patches/barebox-2019.12.0/0010-usb-Add-dwc2-host-driver.patch
new file mode 100644
index 0000000..43a6146
--- /dev/null
+++ b/configs/platform-v7a/patches/barebox-2019.12.0/0010-usb-Add-dwc2-host-driver.patch
@@ -0,0 +1,1964 @@
+From: Sascha Hauer <s.hauer@pengutronix.de>
+Date: Thu, 19 Dec 2019 07:21:20 +0100
+Subject: [PATCH] usb: Add dwc2 host driver
+
+This adds a driver for the dwc2 controller in host mode. The driver is
+taken from U-Boot-2019.10 and tested on a Raspberry Pi 3.
+
+Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
+---
+ drivers/usb/host/Kconfig | 3 +
+ drivers/usb/host/Makefile | 1 +
+ drivers/usb/host/dwc2.c | 1132 +++++++++++++++++++++++++++++++++++++++++++++
+ drivers/usb/host/dwc2.h | 778 +++++++++++++++++++++++++++++++
+ 4 files changed, 1914 insertions(+)
+ create mode 100644 drivers/usb/host/dwc2.c
+ create mode 100644 drivers/usb/host/dwc2.h
+
+diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
+index d2029bc7d729..b0f32faee998 100644
+--- a/drivers/usb/host/Kconfig
++++ b/drivers/usb/host/Kconfig
+@@ -21,6 +21,9 @@ config USB_OHCI_AT91
+ depends on ARCH_AT91
+ bool "AT91 OHCI driver"
+
++config USB_DWC2_HOST
++ bool "DWC2 Host driver"
++
+ config USB_XHCI
+ bool "xHCI driver"
+ depends on HAS_DMA
+diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
+index 0478d342720d..fa042e9a5423 100644
+--- a/drivers/usb/host/Makefile
++++ b/drivers/usb/host/Makefile
+@@ -3,5 +3,6 @@ obj-$(CONFIG_USB_EHCI_OMAP) += ehci-omap.o
+ obj-$(CONFIG_USB_EHCI_ATMEL) += ehci-atmel.o
+ obj-$(CONFIG_USB_OHCI) += ohci-hcd.o
+ obj-$(CONFIG_USB_OHCI_AT91) += ohci-at91.o
++obj-$(CONFIG_USB_DWC2_HOST) += dwc2.o
+ obj-$(CONFIG_USB_XHCI) += xhci-hcd.o xhci-hub.o
+ obj-$(CONFIG_USB_XHCI_PCI) += xhci-pci.o
+diff --git a/drivers/usb/host/dwc2.c b/drivers/usb/host/dwc2.c
+new file mode 100644
+index 000000000000..1df114968687
+--- /dev/null
++++ b/drivers/usb/host/dwc2.c
+@@ -0,0 +1,1132 @@
++// SPDX-License-Identifier: GPL-2.0+
++/*
++ * Copyright (C) 2012 Oleksandr Tymoshenko <gonzo@freebsd.org>
++ * Copyright (C) 2014 Marek Vasut <marex@denx.de>
++ */
++
++#include <common.h>
++#include <usb/usb.h>
++#include <usb/usbroothubdes.h>
++#include <malloc.h>
++#include <init.h>
++#include <io.h>
++#include <of.h>
++#include <linux/iopoll.h>
++#include <dma.h>
++
++#include "dwc2.h"
++
++/* Use only HC channel 0. */
++#define DWC2_HC_CHANNEL 0
++
++#define DWC2_STATUS_BUF_SIZE 64
++#define DWC2_DATA_BUF_SIZE (16 * 1024)
++
++#define MAX_DEVICE 16
++#define MAX_ENDPOINT 16
++
++struct dwc2_priv {
++ struct device_d *dev;
++ struct usb_host host;
++ uint8_t *dmabuf;
++
++ u8 in_data_toggle[MAX_DEVICE][MAX_ENDPOINT];
++ u8 out_data_toggle[MAX_DEVICE][MAX_ENDPOINT];
++ struct dwc2_core_regs *regs;
++ int root_hub_devnum;
++ bool ext_vbus;
++ /*
++ * The hnp/srp capability must be disabled if the platform
++ * does't support hnp/srp. Otherwise the force mode can't work.
++ */
++ bool hnp_srp_disable;
++ bool oc_disable;
++};
++
++/*
++ * Initializes the FSLSPClkSel field of the HCFG register
++ * depending on the PHY type.
++ */
++static void init_fslspclksel(struct dwc2_priv *priv)
++{
++ struct dwc2_core_regs *regs = priv->regs;
++ uint32_t phyclk;
++
++ phyclk = DWC2_HCFG_FSLSPCLKSEL_48_MHZ; /* Full speed PHY */
++
++ clrsetbits_le32(&regs->host_regs.hcfg,
++ DWC2_HCFG_FSLSPCLKSEL_MASK,
++ phyclk << DWC2_HCFG_FSLSPCLKSEL_OFFSET);
++}
++
++/*
++ * Flush a Tx FIFO.
++ *
++ * @param regs Programming view of DWC_otg controller.
++ * @param num Tx FIFO to flush.
++ */
++static void dwc_otg_flush_tx_fifo(struct dwc2_priv *priv, const int num)
++{
++ struct dwc2_core_regs *regs = priv->regs;
++ struct device_d *dev = priv->dev;
++ int ret;
++ uint32_t val;
++
++ writel(DWC2_GRSTCTL_TXFFLSH | (num << DWC2_GRSTCTL_TXFNUM_OFFSET),
++ &regs->grstctl);
++ ret = readl_poll_timeout(&regs->grstctl, val, !(val & DWC2_GRSTCTL_TXFFLSH),
++ 1000000);
++ if (ret)
++ dev_err(dev, "%s: Timeout!\n", __func__);
++
++ /* Wait for 3 PHY Clocks */
++ udelay(1);
++}
++
++/*
++ * Flush Rx FIFO.
++ *
++ * @param regs Programming view of DWC_otg controller.
++ */
++static void dwc_otg_flush_rx_fifo(struct dwc2_priv *priv)
++{
++ struct dwc2_core_regs *regs = priv->regs;
++ struct device_d *dev = priv->dev;
++ int ret;
++ uint32_t val;
++
++ writel(DWC2_GRSTCTL_RXFFLSH, &regs->grstctl);
++ ret = readl_poll_timeout(&regs->grstctl, val, !(val & DWC2_GRSTCTL_RXFFLSH),
++ 1000000);
++ if (ret)
++ dev_err(dev, "%s: Timeout!\n", __func__);
++
++ /* Wait for 3 PHY Clocks */
++ udelay(1);
++}
++
++/*
++ * Do core a soft reset of the core. Be careful with this because it
++ * resets all the internal state machines of the core.
++ */
++static void dwc_otg_core_reset(struct dwc2_priv *priv)
++{
++ struct dwc2_core_regs *regs = priv->regs;
++ struct device_d *dev = priv->dev;
++ uint32_t val;
++ int ret;
++
++ /* Wait for AHB master IDLE state. */
++ ret = readl_poll_timeout(&regs->grstctl, val, val & DWC2_GRSTCTL_AHBIDLE,
++ 1000000);
++ if (ret)
++ dev_err(dev, "%s: Timeout!\n", __func__);
++
++ /* Core Soft Reset */
++ writel(DWC2_GRSTCTL_CSFTRST, &regs->grstctl);
++ ret = readl_poll_timeout(&regs->grstctl, val, !(val & DWC2_GRSTCTL_CSFTRST),
++ 1000000);
++ if (ret)
++ dev_err(dev, "%s: Timeout!\n", __func__);
++
++ /*
++ * Wait for core to come out of reset.
++ * NOTE: This long sleep is _very_ important, otherwise the core will
++ * not stay in host mode after a connector ID change!
++ */
++ mdelay(100);
++}
++
++/*
++ * This function initializes the DWC_otg controller registers for
++ * host mode.
++ *
++ * This function flushes the Tx and Rx FIFOs and it flushes any entries in the
++ * request queues. Host channels are reset to ensure that they are ready for
++ * performing transfers.
++ *
++ * @param dev USB Device (NULL if driver model is not being used)
++ * @param regs Programming view of DWC_otg controller
++ *
++ */
++static void dwc_otg_core_host_init(struct dwc2_priv *priv)
++{
++ struct dwc2_core_regs *regs = priv->regs;
++ struct device_d *dev = priv->dev;
++ uint32_t nptxfifosize = 0;
++ uint32_t ptxfifosize = 0;
++ uint32_t hprt0 = 0;
++ uint32_t val;
++ int i, ret, num_channels;
++
++ /* Restart the Phy Clock */
++ writel(0, &regs->pcgcctl);
++
++ /* Initialize Host Configuration Register */
++ init_fslspclksel(priv);
++
++ /* Configure data FIFO sizes */
++ if (readl(&regs->ghwcfg2) & DWC2_HWCFG2_DYNAMIC_FIFO) {
++ /* Rx FIFO */
++ writel(CONFIG_DWC2_HOST_RX_FIFO_SIZE, &regs->grxfsiz);
++
++ /* Non-periodic Tx FIFO */
++ nptxfifosize |= CONFIG_DWC2_HOST_NPERIO_TX_FIFO_SIZE <<
++ DWC2_FIFOSIZE_DEPTH_OFFSET;
++ nptxfifosize |= CONFIG_DWC2_HOST_RX_FIFO_SIZE <<
++ DWC2_FIFOSIZE_STARTADDR_OFFSET;
++ writel(nptxfifosize, &regs->gnptxfsiz);
++
++ /* Periodic Tx FIFO */
++ ptxfifosize |= CONFIG_DWC2_HOST_PERIO_TX_FIFO_SIZE <<
++ DWC2_FIFOSIZE_DEPTH_OFFSET;
++ ptxfifosize |= (CONFIG_DWC2_HOST_RX_FIFO_SIZE +
++ CONFIG_DWC2_HOST_NPERIO_TX_FIFO_SIZE) <<
++ DWC2_FIFOSIZE_STARTADDR_OFFSET;
++ writel(ptxfifosize, &regs->hptxfsiz);
++ }
++
++ /* Clear Host Set HNP Enable in the OTG Control Register */
++ clrbits_le32(&regs->gotgctl, DWC2_GOTGCTL_HSTSETHNPEN);
++
++ /* Make sure the FIFOs are flushed. */
++ dwc_otg_flush_tx_fifo(priv, 0x10); /* All Tx FIFOs */
++ dwc_otg_flush_rx_fifo(priv);
++
++ /* Flush out any leftover queued requests. */
++ num_channels = readl(&regs->ghwcfg2);
++ num_channels &= DWC2_HWCFG2_NUM_HOST_CHAN_MASK;
++ num_channels >>= DWC2_HWCFG2_NUM_HOST_CHAN_OFFSET;
++ num_channels += 1;
++
++ for (i = 0; i < num_channels; i++)
++ clrsetbits_le32(&regs->hc_regs[i].hcchar,
++ DWC2_HCCHAR_CHEN | DWC2_HCCHAR_EPDIR,
++ DWC2_HCCHAR_CHDIS);
++
++ /* Halt all channels to put them into a known state. */
++ for (i = 0; i < num_channels; i++) {
++ clrsetbits_le32(&regs->hc_regs[i].hcchar,
++ DWC2_HCCHAR_EPDIR,
++ DWC2_HCCHAR_CHEN | DWC2_HCCHAR_CHDIS);
++ ret = readl_poll_timeout(&regs->hc_regs[i].hcchar, val,
++ !(val & DWC2_HCCHAR_CHEN),
++ 1000000);
++ if (ret)
++ dev_err(dev, "%s: Timeout!\n", __func__);
++ }
++
++ /* Turn on the vbus power. */
++ if (readl(&regs->gintsts) & DWC2_GINTSTS_CURMODE_HOST) {
++ hprt0 = readl(&regs->hprt0);
++ hprt0 &= ~(DWC2_HPRT0_PRTENA | DWC2_HPRT0_PRTCONNDET);
++ hprt0 &= ~(DWC2_HPRT0_PRTENCHNG | DWC2_HPRT0_PRTOVRCURRCHNG);
++ if (!(hprt0 & DWC2_HPRT0_PRTPWR)) {
++ hprt0 |= DWC2_HPRT0_PRTPWR;
++ writel(hprt0, &regs->hprt0);
++ }
++ }
++}
++
++/*
++ * This function initializes the DWC_otg controller registers and
++ * prepares the core for device mode or host mode operation.
++ *
++ * @param regs Programming view of the DWC_otg controller
++ */
++static void dwc_otg_core_init(struct dwc2_priv *priv)
++{
++ struct dwc2_core_regs *regs = priv->regs;
++ uint32_t ahbcfg = 0;
++ uint32_t usbcfg = 0;
++ uint8_t brst_sz = 32;
++
++ /* Common Initialization */
++ usbcfg = readl(&regs->gusbcfg);
++
++ /* Program the ULPI External VBUS bit if needed */
++ if (priv->ext_vbus) {
++ usbcfg |= DWC2_GUSBCFG_ULPI_EXT_VBUS_DRV;
++ if (!priv->oc_disable) {
++ usbcfg |= DWC2_GUSBCFG_ULPI_INT_VBUS_INDICATOR |
++ DWC2_GUSBCFG_INDICATOR_PASSTHROUGH;
++ }
++ } else {
++ usbcfg &= ~DWC2_GUSBCFG_ULPI_EXT_VBUS_DRV;
++ }
++
++ /* Set external TS Dline pulsing */
++ usbcfg &= ~DWC2_GUSBCFG_TERM_SEL_DL_PULSE;
++ writel(usbcfg, &regs->gusbcfg);
++
++ /* Reset the Controller */
++ dwc_otg_core_reset(priv);
++
++ /* High speed PHY. */
++
++ /*
++ * HS PHY parameters. These parameters are preserved during
++ * soft reset so only program the first time. Do a soft reset
++ * immediately after setting phyif.
++ */
++ usbcfg &= ~(DWC2_GUSBCFG_ULPI_UTMI_SEL | DWC2_GUSBCFG_PHYIF);
++ usbcfg |= CONFIG_DWC2_PHY_TYPE << DWC2_GUSBCFG_ULPI_UTMI_SEL_OFFSET;
++
++ if (usbcfg & DWC2_GUSBCFG_ULPI_UTMI_SEL) /* ULPI interface */
++ usbcfg &= ~DWC2_GUSBCFG_DDRSEL;
++
++ writel(usbcfg, &regs->gusbcfg);
++
++ /* Reset after setting the PHY parameters */
++ dwc_otg_core_reset(priv);
++
++ usbcfg = readl(&regs->gusbcfg);
++ usbcfg &= ~(DWC2_GUSBCFG_ULPI_FSLS | DWC2_GUSBCFG_ULPI_CLK_SUS_M);
++
++ if (priv->hnp_srp_disable)
++ usbcfg |= DWC2_GUSBCFG_FORCEHOSTMODE;
++
++ writel(usbcfg, &regs->gusbcfg);
++
++ /* Program the GAHBCFG Register. */
++ switch (readl(&regs->ghwcfg2) & DWC2_HWCFG2_ARCHITECTURE_MASK) {
++ case DWC2_HWCFG2_ARCHITECTURE_SLAVE_ONLY:
++ break;
++ case DWC2_HWCFG2_ARCHITECTURE_EXT_DMA:
++ while (brst_sz > 1) {
++ ahbcfg |= ahbcfg + (1 << DWC2_GAHBCFG_HBURSTLEN_OFFSET);
++ ahbcfg &= DWC2_GAHBCFG_HBURSTLEN_MASK;
++ brst_sz >>= 1;
++ }
++
++ ahbcfg |= DWC2_GAHBCFG_DMAENABLE;
++ break;
++
++ case DWC2_HWCFG2_ARCHITECTURE_INT_DMA:
++ ahbcfg |= DWC2_GAHBCFG_HBURSTLEN_INCR4;
++ ahbcfg |= DWC2_GAHBCFG_DMAENABLE;
++ break;
++ }
++
++ writel(ahbcfg, &regs->gahbcfg);
++
++ /* Program the capabilities in GUSBCFG Register */
++ usbcfg = 0;
++
++ if (!priv->hnp_srp_disable)
++ usbcfg |= DWC2_GUSBCFG_HNPCAP | DWC2_GUSBCFG_SRPCAP;
++
++ setbits_le32(&regs->gusbcfg, usbcfg);
++}
++
++/*
++ * Prepares a host channel for transferring packets to/from a specific
++ * endpoint. The HCCHARn register is set up with the characteristics specified
++ * in _hc. Host channel interrupts that may need to be serviced while this
++ * transfer is in progress are enabled.
++ *
++ * @param regs Programming view of DWC_otg controller
++ * @param hc Information needed to initialize the host channel
++ */
++static void dwc_otg_hc_init(struct dwc2_core_regs *regs, uint8_t hc_num,
++ struct usb_device *dev, uint8_t dev_addr, uint8_t ep_num,
++ uint8_t ep_is_in, uint8_t ep_type, uint16_t max_packet)
++{
++ struct dwc2_hc_regs *hc_regs = &regs->hc_regs[hc_num];
++ uint32_t hcchar = (dev_addr << DWC2_HCCHAR_DEVADDR_OFFSET) |
++ (ep_num << DWC2_HCCHAR_EPNUM_OFFSET) |
++ (ep_is_in << DWC2_HCCHAR_EPDIR_OFFSET) |
++ (ep_type << DWC2_HCCHAR_EPTYPE_OFFSET) |
++ (max_packet << DWC2_HCCHAR_MPS_OFFSET);
++
++ if (dev->speed == USB_SPEED_LOW)
++ hcchar |= DWC2_HCCHAR_LSPDDEV;
++
++ /*
++ * Program the HCCHARn register with the endpoint characteristics
++ * for the current transfer.
++ */
++ writel(hcchar, &hc_regs->hcchar);
++
++ /* Program the HCSPLIT register, default to no SPLIT */
++ writel(0, &hc_regs->hcsplt);
++}
++
++static void dwc_otg_hc_init_split(struct dwc2_hc_regs *hc_regs,
++ uint8_t hub_devnum, uint8_t hub_port)
++{
++ uint32_t hcsplt = 0;
++
++ hcsplt = DWC2_HCSPLT_SPLTENA;
++ hcsplt |= hub_devnum << DWC2_HCSPLT_HUBADDR_OFFSET;
++ hcsplt |= hub_port << DWC2_HCSPLT_PRTADDR_OFFSET;
++
++ /* Program the HCSPLIT register for SPLITs */
++ writel(hcsplt, &hc_regs->hcsplt);
++}
++
++/*
++ * DWC2 to USB API interface
++ */
++/* Direction: In ; Request: Status */
++static int dwc_otg_submit_rh_msg_in_status(struct dwc2_core_regs *regs,
++ struct usb_device *dev, void *buffer,
++ int txlen, struct devrequest *cmd)
++{
++ uint32_t hprt0 = 0;
++ uint32_t port_status = 0;
++ uint32_t port_change = 0;
++ int len = 0;
++ int stat = 0;
++
++ switch (cmd->requesttype & ~USB_DIR_IN) {
++ case 0:
++ *(uint16_t *)buffer = cpu_to_le16(1);
++ len = 2;
++ break;
++ case USB_RECIP_INTERFACE:
++ case USB_RECIP_ENDPOINT:
++ *(uint16_t *)buffer = cpu_to_le16(0);
++ len = 2;
++ break;
++ case USB_TYPE_CLASS:
++ *(uint32_t *)buffer = cpu_to_le32(0);
++ len = 4;
++ break;
++ case USB_RECIP_OTHER | USB_TYPE_CLASS:
++ hprt0 = readl(&regs->hprt0);
++ if (hprt0 & DWC2_HPRT0_PRTCONNSTS)
++ port_status |= USB_PORT_STAT_CONNECTION;
++ if (hprt0 & DWC2_HPRT0_PRTENA)
++ port_status |= USB_PORT_STAT_ENABLE;
++ if (hprt0 & DWC2_HPRT0_PRTSUSP)
++ port_status |= USB_PORT_STAT_SUSPEND;
++ if (hprt0 & DWC2_HPRT0_PRTOVRCURRACT)
++ port_status |= USB_PORT_STAT_OVERCURRENT;
++ if (hprt0 & DWC2_HPRT0_PRTRST)
++ port_status |= USB_PORT_STAT_RESET;
++ if (hprt0 & DWC2_HPRT0_PRTPWR)
++ port_status |= USB_PORT_STAT_POWER;
++
++ if ((hprt0 & DWC2_HPRT0_PRTSPD_MASK) == DWC2_HPRT0_PRTSPD_LOW)
++ port_status |= USB_PORT_STAT_LOW_SPEED;
++ else if ((hprt0 & DWC2_HPRT0_PRTSPD_MASK) ==
++ DWC2_HPRT0_PRTSPD_HIGH)
++ port_status |= USB_PORT_STAT_HIGH_SPEED;
++
++ if (hprt0 & DWC2_HPRT0_PRTENCHNG)
++ port_change |= USB_PORT_STAT_C_ENABLE;
++ if (hprt0 & DWC2_HPRT0_PRTCONNDET)
++ port_change |= USB_PORT_STAT_C_CONNECTION;
++ if (hprt0 & DWC2_HPRT0_PRTOVRCURRCHNG)
++ port_change |= USB_PORT_STAT_C_OVERCURRENT;
++
++ *(uint32_t *)buffer = cpu_to_le32(port_status |
++ (port_change << 16));
++ len = 4;
++ break;
++ default:
++ pr_err("%s: unsupported root hub command\n", __func__);
++ stat = USB_ST_STALLED;
++ }
++
++ dev->act_len = min(len, txlen);
++ dev->status = stat;
++
++ return stat;
++}
++
++/* Direction: In ; Request: Descriptor */
++static int dwc_otg_submit_rh_msg_in_descriptor(struct usb_device *dev,
++ void *buffer, int txlen,
++ struct devrequest *cmd)
++{
++ unsigned char data[32];
++ uint32_t dsc;
++ int len = 0;
++ int stat = 0;
++ uint16_t wValue = cpu_to_le16(cmd->value);
++ uint16_t wLength = cpu_to_le16(cmd->length);
++
++ switch (cmd->requesttype & ~USB_DIR_IN) {
++ case 0:
++ switch (wValue & 0xff00) {
++ case 0x0100: /* device descriptor */
++ len = min3(txlen, (int)sizeof(root_hub_dev_des), (int)wLength);
++ memcpy(buffer, root_hub_dev_des, len);
++ break;
++ case 0x0200: /* configuration descriptor */
++ len = min3(txlen, (int)sizeof(root_hub_config_des), (int)wLength);
++ memcpy(buffer, root_hub_config_des, len);
++ break;
++ case 0x0300: /* string descriptors */
++ switch (wValue & 0xff) {
++ case 0x00:
++ len = min3(txlen, (int)sizeof(root_hub_str_index0),
++ (int)wLength);
++ memcpy(buffer, root_hub_str_index0, len);
++ break;
++ case 0x01:
++ len = min3(txlen, (int)sizeof(root_hub_str_index1),
++ (int)wLength);
++ memcpy(buffer, root_hub_str_index1, len);
++ break;
++ }
++ break;
++ default:
++ stat = USB_ST_STALLED;
++ }
++ break;
++
++ case USB_TYPE_CLASS:
++ /* Root port config, set 1 port and nothing else. */
++ dsc = 0x00000001;
++
++ data[0] = 9; /* min length; */
++ data[1] = 0x29;
++ data[2] = dsc & RH_A_NDP;
++ data[3] = 0;
++ if (dsc & RH_A_PSM)
++ data[3] |= 0x1;
++ if (dsc & RH_A_NOCP)
++ data[3] |= 0x10;
++ else if (dsc & RH_A_OCPM)
++ data[3] |= 0x8;
++
++ /* corresponds to data[4-7] */
++ data[5] = (dsc & RH_A_POTPGT) >> 24;
++ data[7] = dsc & RH_B_DR;
++ if (data[2] < 7) {
++ data[8] = 0xff;
++ } else {
++ data[0] += 2;
++ data[8] = (dsc & RH_B_DR) >> 8;
++ data[9] = 0xff;
++ data[10] = data[9];
++ }
++
++ len = min3(txlen, (int)data[0], (int)wLength);
++ memcpy(buffer, data, len);
++ break;
++ default:
++ pr_err("%s: unsupported root hub command\n", __func__);
++ stat = USB_ST_STALLED;
++ }
++
++ dev->act_len = min(len, txlen);
++ dev->status = stat;
++
++ return stat;
++}
++
++/* Direction: In ; Request: Configuration */
++static int dwc_otg_submit_rh_msg_in_configuration(struct usb_device *dev,
++ void *buffer, int txlen,
++ struct devrequest *cmd)
++{
++ int len = 0;
++ int stat = 0;
++
++ switch (cmd->requesttype & ~USB_DIR_IN) {
++ case 0:
++ *(uint8_t *)buffer = 0x01;
++ len = 1;
++ break;
++ default:
++ pr_err("%s: unsupported root hub command\n", __func__);
++ stat = USB_ST_STALLED;
++ }
++
++ dev->act_len = min(len, txlen);
++ dev->status = stat;
++
++ return stat;
++}
++
++/* Direction: In */
++static int dwc_otg_submit_rh_msg_in(struct dwc2_priv *priv,
++ struct usb_device *dev, void *buffer,
++ int txlen, struct devrequest *cmd)
++{
++ switch (cmd->request) {
++ case USB_REQ_GET_STATUS:
++ return dwc_otg_submit_rh_msg_in_status(priv->regs, dev, buffer,
++ txlen, cmd);
++ case USB_REQ_GET_DESCRIPTOR:
++ return dwc_otg_submit_rh_msg_in_descriptor(dev, buffer,
++ txlen, cmd);
++ case USB_REQ_GET_CONFIGURATION:
++ return dwc_otg_submit_rh_msg_in_configuration(dev, buffer,
++ txlen, cmd);
++ default:
++ pr_err("%s: unsupported root hub command\n", __func__);
++ return USB_ST_STALLED;
++ }
++}
++
++/* Direction: Out */
++static int dwc_otg_submit_rh_msg_out(struct dwc2_priv *priv,
++ struct usb_device *dev,
++ void *buffer, int txlen,
++ struct devrequest *cmd)
++{
++ struct dwc2_core_regs *regs = priv->regs;
++ int len = 0;
++ int stat = 0;
++ uint16_t bmrtype_breq = cmd->requesttype | (cmd->request << 8);
++ uint16_t wValue = cpu_to_le16(cmd->value);
++
++ switch (bmrtype_breq & ~USB_DIR_IN) {
++ case (USB_REQ_CLEAR_FEATURE << 8) | USB_RECIP_ENDPOINT:
++ case (USB_REQ_CLEAR_FEATURE << 8) | USB_TYPE_CLASS:
++ break;
++
++ case (USB_REQ_CLEAR_FEATURE << 8) | USB_RECIP_OTHER | USB_TYPE_CLASS:
++ switch (wValue) {
++ case USB_PORT_FEAT_C_CONNECTION:
++ setbits_le32(&regs->hprt0, DWC2_HPRT0_PRTCONNDET);
++ break;
++ }
++ break;
++
++ case (USB_REQ_SET_FEATURE << 8) | USB_RECIP_OTHER | USB_TYPE_CLASS:
++ switch (wValue) {
++ case USB_PORT_FEAT_SUSPEND:
++ break;
++
++ case USB_PORT_FEAT_RESET:
++ clrsetbits_le32(&regs->hprt0, DWC2_HPRT0_PRTENA |
++ DWC2_HPRT0_PRTCONNDET |
++ DWC2_HPRT0_PRTENCHNG |
++ DWC2_HPRT0_PRTOVRCURRCHNG,
++ DWC2_HPRT0_PRTRST);
++ mdelay(50);
++ clrbits_le32(&regs->hprt0, DWC2_HPRT0_PRTRST);
++ break;
++
++ case USB_PORT_FEAT_POWER:
++ clrsetbits_le32(&regs->hprt0, DWC2_HPRT0_PRTENA |
++ DWC2_HPRT0_PRTCONNDET |
++ DWC2_HPRT0_PRTENCHNG |
++ DWC2_HPRT0_PRTOVRCURRCHNG,
++ DWC2_HPRT0_PRTRST);
++ break;
++
++ case USB_PORT_FEAT_ENABLE:
++ break;
++ }
++ break;
++ case (USB_REQ_SET_ADDRESS << 8):
++ priv->root_hub_devnum = wValue;
++ break;
++ case (USB_REQ_SET_CONFIGURATION << 8):
++ break;
++ default:
++ pr_err("%s: unsupported root hub command\n", __func__);
++ stat = USB_ST_STALLED;
++ }
++
++ len = min(len, txlen);
++
++ dev->act_len = len;
++ dev->status = stat;
++
++ return stat;
++}
++
++static int dwc_otg_submit_rh_msg(struct dwc2_priv *priv, struct usb_device *dev,
++ unsigned long pipe, void *buffer, int txlen,
++ struct devrequest *cmd)
++{
++ int stat = 0;
++
++ if (usb_pipeint(pipe)) {
++ pr_err("Root-Hub submit IRQ: NOT implemented\n");
++ return 0;
++ }
++
++ if (cmd->requesttype & USB_DIR_IN)
++ stat = dwc_otg_submit_rh_msg_in(priv, dev, buffer, txlen, cmd);
++ else
++ stat = dwc_otg_submit_rh_msg_out(priv, dev, buffer, txlen, cmd);
++
++ mdelay(1);
++
++ return stat;
++}
++
++static int wait_for_chhltd(struct dwc2_priv *priv, uint32_t *sub,
++ u8 *toggle, int timeout_ms)
++{
++ struct dwc2_core_regs *regs = priv->regs;
++ struct dwc2_hc_regs *hc_regs = &regs->hc_regs[DWC2_HC_CHANNEL];
++ struct device_d *dev = priv->dev;
++ int ret;
++ uint32_t hcint, hctsiz;
++ uint32_t val;
++ int timeout_us = timeout_ms * 1000;
++
++ ret = readl_poll_timeout(&hc_regs->hcint, val,
++ val & DWC2_HCINT_CHHLTD, timeout_us);
++ if (ret) {
++ clrsetbits_le32(&hc_regs->hcchar, 0, DWC2_HCCHAR_CHDIS);
++ readl_poll_timeout(&hc_regs->hcint, val,
++ val & DWC2_HCINT_CHHLTD, 10000);
++
++ return ret;
++ }
++
++ hcint = readl(&hc_regs->hcint);
++ hctsiz = readl(&hc_regs->hctsiz);
++ *sub = (hctsiz & DWC2_HCTSIZ_XFERSIZE_MASK) >>
++ DWC2_HCTSIZ_XFERSIZE_OFFSET;
++ *toggle = (hctsiz & DWC2_HCTSIZ_PID_MASK) >> DWC2_HCTSIZ_PID_OFFSET;
++
++ dev_dbg(dev, "%s: HCINT=%08x sub=%u toggle=%d\n", __func__, hcint, *sub,
++ *toggle);
++
++ if (hcint & DWC2_HCINT_XFERCOMP)
++ return 0;
++
++ if (hcint & (DWC2_HCINT_NAK | DWC2_HCINT_FRMOVRUN))
++ return -EAGAIN;
++
++ dev_dbg(dev, "%s: Error (HCINT=%08x)\n", __func__, hcint);
++
++ return -EINVAL;
++}
++
++static int dwc2_eptype[] = {
++ DWC2_HCCHAR_EPTYPE_ISOC,
++ DWC2_HCCHAR_EPTYPE_INTR,
++ DWC2_HCCHAR_EPTYPE_CONTROL,
++ DWC2_HCCHAR_EPTYPE_BULK,
++};
++
++static int transfer_chunk(struct dwc2_priv *priv, u8 *pid, int in, void *buffer,
++ int num_packets, int xfer_len, int *actual_len,
++ int odd_frame, int timeout_ms)
++{
++ struct dwc2_core_regs *regs = priv->regs;
++ struct dwc2_hc_regs *hc_regs = &regs->hc_regs[DWC2_HC_CHANNEL];
++ int ret = 0;
++ uint32_t sub = 0;
++ enum dma_data_direction dir;
++ dma_addr_t dma = 0;
++
++ dev_dbg(priv->dev, "%s: chunk: pid %d xfer_len %u pkts %u\n",
++ __func__, *pid, xfer_len, num_packets);
++
++ writel((xfer_len << DWC2_HCTSIZ_XFERSIZE_OFFSET) |
++ (num_packets << DWC2_HCTSIZ_PKTCNT_OFFSET) |
++ (*pid << DWC2_HCTSIZ_PID_OFFSET),
++ &hc_regs->hctsiz);
++
++ if (xfer_len) {
++ if (in) {
++ dir = DMA_FROM_DEVICE;
++ } else {
++ memcpy(priv->dmabuf, buffer, xfer_len);
++ dir = DMA_TO_DEVICE;
++ }
++ dma = dma_map_single(priv->dev, priv->dmabuf, xfer_len, dir);
++ }
++
++ writel(dma, &hc_regs->hcdma);
++
++ /* Clear old interrupt conditions for this host channel. */
++ writel(0x3fff, &hc_regs->hcint);
++
++ /* Set host channel enable after all other setup is complete. */
++ clrsetbits_le32(&hc_regs->hcchar, DWC2_HCCHAR_MULTICNT_MASK |
++ DWC2_HCCHAR_CHEN | DWC2_HCCHAR_CHDIS |
++ DWC2_HCCHAR_ODDFRM,
++ (1 << DWC2_HCCHAR_MULTICNT_OFFSET) |
++ (odd_frame << DWC2_HCCHAR_ODDFRM_OFFSET) |
++ DWC2_HCCHAR_CHEN);
++
++ ret = wait_for_chhltd(priv, &sub, pid, timeout_ms);
++
++ if (xfer_len)
++ dma_unmap_single(priv->dev, dma, xfer_len, dir);
++
++ if (in) {
++ xfer_len -= sub;
++
++ memcpy(buffer, priv->dmabuf, xfer_len);
++ }
++
++ if (!ret)
++ *actual_len = xfer_len;
++
++ return ret;
++}
++
++static int usb_find_usb2_hub_address_port(struct usb_device *udev,
++ uint8_t *hub_address, uint8_t *hub_port)
++{
++ /* Find out the nearest parent which is high speed */
++ while (udev->parent->parent) {
++ if (udev->parent->speed != USB_SPEED_HIGH) {
++ udev = udev->parent;
++ } else {
++ *hub_address = udev->parent->devnum;
++ *hub_port = udev->portnr;
++ return 0;
++ }
++ }
++
++ return -EINVAL;
++}
++
++static int chunk_msg(struct dwc2_priv *priv, struct usb_device *dev,
++ unsigned long pipe, u8 *pid, int in, void *buffer, int len,
++ int timeout_ms)
++{
++ struct dwc2_core_regs *regs = priv->regs;
++ struct dwc2_hc_regs *hc_regs = &regs->hc_regs[DWC2_HC_CHANNEL];
++ struct dwc2_host_regs *host_regs = &regs->host_regs;
++ int devnum = usb_pipedevice(pipe);
++ int ep = usb_pipeendpoint(pipe);
++ int max = usb_maxpacket(dev, pipe);
++ int eptype = dwc2_eptype[usb_pipetype(pipe)];
++ int done = 0;
++ int ret = 0;
++ int do_split = 0;
++ int complete_split = 0;
++ uint32_t xfer_len;
++ uint32_t num_packets;
++ int stop_transfer = 0;
++ uint32_t max_xfer_len;
++ int ssplit_frame_num = 0;
++
++ dev_dbg(priv->dev, "%s: msg: pipe %lx pid %d in %d len %d\n",
++ __func__, pipe, *pid, in, len);
++
++ max_xfer_len = CONFIG_DWC2_MAX_PACKET_COUNT * max;
++ if (max_xfer_len > CONFIG_DWC2_MAX_TRANSFER_SIZE)
++ max_xfer_len = CONFIG_DWC2_MAX_TRANSFER_SIZE;
++ if (max_xfer_len > DWC2_DATA_BUF_SIZE)
++ max_xfer_len = DWC2_DATA_BUF_SIZE;
++
++ /* Make sure that max_xfer_len is a multiple of max packet size. */
++ num_packets = max_xfer_len / max;
++ max_xfer_len = num_packets * max;
++
++ /* Initialize channel */
++ dwc_otg_hc_init(regs, DWC2_HC_CHANNEL, dev, devnum, ep, in,
++ eptype, max);
++
++ /* Check if the target is a FS/LS device behind a HS hub */
++ if (dev->speed != USB_SPEED_HIGH) {
++ uint8_t hub_addr;
++ uint8_t hub_port;
++ uint32_t hprt0 = readl(&regs->hprt0);
++
++ if ((hprt0 & DWC2_HPRT0_PRTSPD_MASK) == DWC2_HPRT0_PRTSPD_HIGH) {
++ ret = usb_find_usb2_hub_address_port(dev, &hub_addr,
++ &hub_port);
++ if (ret)
++ return ret;
++ dwc_otg_hc_init_split(hc_regs, hub_addr, hub_port);
++
++ do_split = 1;
++ num_packets = 1;
++ max_xfer_len = max;
++ }
++ }
++
++ do {
++ int actual_len = 0;
++ uint32_t hcint;
++ int odd_frame = 0;
++ xfer_len = len - done;
++
++ if (xfer_len > max_xfer_len)
++ xfer_len = max_xfer_len;
++ else if (xfer_len > max)
++ num_packets = (xfer_len + max - 1) / max;
++ else
++ num_packets = 1;
++
++ if (complete_split)
++ setbits_le32(&hc_regs->hcsplt, DWC2_HCSPLT_COMPSPLT);
++ else if (do_split)
++ clrbits_le32(&hc_regs->hcsplt, DWC2_HCSPLT_COMPSPLT);
++
++ if (eptype == DWC2_HCCHAR_EPTYPE_INTR) {
++ int uframe_num = readl(&host_regs->hfnum);
++ if (!(uframe_num & 0x1))
++ odd_frame = 1;
++ }
++
++ ret = transfer_chunk(priv, pid, in, (char *)buffer + done,
++ num_packets, xfer_len, &actual_len,
++ odd_frame, timeout_ms);
++
++ hcint = readl(&hc_regs->hcint);
++ if (complete_split) {
++ stop_transfer = 0;
++ if (hcint & DWC2_HCINT_NYET) {
++ int frame_num = DWC2_HFNUM_MAX_FRNUM &
++ readl(&host_regs->hfnum);
++ ret = 0;
++ if (((frame_num - ssplit_frame_num) &
++ DWC2_HFNUM_MAX_FRNUM) > 4)
++ ret = -EAGAIN;
++ } else
++ complete_split = 0;
++ } else if (do_split) {
++ if (hcint & DWC2_HCINT_ACK) {
++ ssplit_frame_num = DWC2_HFNUM_MAX_FRNUM &
++ readl(&host_regs->hfnum);
++ ret = 0;
++ complete_split = 1;
++ }
++ }
++
++ if (ret)
++ break;
++
++ if (actual_len < xfer_len)
++ stop_transfer = 1;
++
++ done += actual_len;
++
++ /*
++ * Transactions are done when when either all data is transferred or
++ * there is a short transfer. In case of a SPLIT make sure the CSPLIT
++ * is executed.
++ */
++ } while (((done < len) && !stop_transfer) || complete_split);
++
++ writel(0, &hc_regs->hcintmsk);
++ writel(0xFFFFFFFF, &hc_regs->hcint);
++
++ dev->status = 0;
++ dev->act_len = done;
++
++ return ret;
++}
++
++#define to_dwc2(ptr) container_of(ptr, struct dwc2_priv, host)
++
++static int dwc2_init_common(struct usb_host *host)
++{
++ struct dwc2_priv *priv = to_dwc2(host);
++ struct dwc2_core_regs *regs = priv->regs;
++ int i, j;
++
++ priv->ext_vbus = 0;
++
++ dwc_otg_core_init(priv);
++ dwc_otg_core_host_init(priv);
++
++ clrsetbits_le32(&regs->hprt0, DWC2_HPRT0_PRTENA |
++ DWC2_HPRT0_PRTCONNDET | DWC2_HPRT0_PRTENCHNG |
++ DWC2_HPRT0_PRTOVRCURRCHNG,
++ DWC2_HPRT0_PRTRST);
++ mdelay(50);
++ clrbits_le32(&regs->hprt0, DWC2_HPRT0_PRTENA | DWC2_HPRT0_PRTCONNDET |
++ DWC2_HPRT0_PRTENCHNG | DWC2_HPRT0_PRTOVRCURRCHNG |
++ DWC2_HPRT0_PRTRST);
++
++ for (i = 0; i < MAX_DEVICE; i++) {
++ for (j = 0; j < MAX_ENDPOINT; j++) {
++ priv->in_data_toggle[i][j] = DWC2_HC_PID_DATA0;
++ priv->out_data_toggle[i][j] = DWC2_HC_PID_DATA0;
++ }
++ }
++
++ return 0;
++}
++
++static void dwc2_uninit_common(struct dwc2_core_regs *regs)
++{
++ /* Put everything in reset. */
++ clrsetbits_le32(&regs->hprt0, DWC2_HPRT0_PRTENA |
++ DWC2_HPRT0_PRTCONNDET | DWC2_HPRT0_PRTENCHNG |
++ DWC2_HPRT0_PRTOVRCURRCHNG,
++ DWC2_HPRT0_PRTRST);
++}
++
++static int dwc2_submit_control_msg(struct usb_device *udev,
++ unsigned long pipe, void *buffer, int len,
++ struct devrequest *setup, int timeout_ms)
++{
++ struct usb_host *host = udev->host;
++ struct dwc2_priv *priv = to_dwc2(host);
++ int devnum = usb_pipedevice(pipe);
++ int ret, act_len;
++ u8 pid;
++ /* For CONTROL endpoint pid should start with DATA1 */
++ int status_direction;
++
++ if (devnum == priv->root_hub_devnum) {
++ udev->status = 0;
++ udev->speed = USB_SPEED_HIGH;
++ return dwc_otg_submit_rh_msg(priv, udev, pipe, buffer, len,
++ setup);
++ }
++
++ /* SETUP stage */
++ pid = DWC2_HC_PID_SETUP;
++ do {
++ ret = chunk_msg(priv, udev, pipe, &pid, 0, setup, 8, timeout_ms);
++ } while (ret == -EAGAIN);
++
++ if (ret)
++ return ret;
++
++ /* DATA stage */
++ act_len = 0;
++ if (buffer) {
++ pid = DWC2_HC_PID_DATA1;
++ do {
++ ret = chunk_msg(priv, udev, pipe, &pid, usb_pipein(pipe),
++ buffer, len, timeout_ms);
++ act_len += udev->act_len;
++ buffer += udev->act_len;
++ len -= udev->act_len;
++ } while (ret == -EAGAIN);
++ if (ret)
++ return ret;
++ status_direction = usb_pipeout(pipe);
++ } else {
++ /* No-data CONTROL always ends with an IN transaction */
++ status_direction = 1;
++ }
++
++ /* STATUS stage */
++ pid = DWC2_HC_PID_DATA1;
++ do {
++ ret = chunk_msg(priv, udev, pipe, &pid, status_direction,
++ NULL, 0, timeout_ms);
++ } while (ret == -EAGAIN);
++
++ if (ret)
++ return ret;
++
++ udev->act_len = act_len;
++
++ return 0;
++}
++
++static int dwc2_submit_bulk_msg(struct usb_device *udev, unsigned long pipe,
++ void *buffer, int len, int timeout_ms)
++{
++ struct usb_host *host = udev->host;
++ struct dwc2_priv *priv = to_dwc2(host);
++ int devnum = usb_pipedevice(pipe);
++ int ep = usb_pipeendpoint(pipe);
++ u8* pid;
++
++ if ((devnum >= MAX_DEVICE) || (devnum == priv->root_hub_devnum)) {
++ udev->status = 0;
++ return -EINVAL;
++ }
++
++ if (usb_pipein(pipe))
++ pid = &priv->in_data_toggle[devnum][ep];
++ else
++ pid = &priv->out_data_toggle[devnum][ep];
++
++ return chunk_msg(priv, udev, pipe, pid, usb_pipein(pipe), buffer, len,
++ timeout_ms);
++}
++
++static int dwc2_submit_int_msg(struct usb_device *udev, unsigned long pipe,
++ void *buffer, int len, int interval)
++{
++ uint64_t start;
++ int ret;
++
++ start = get_time_ns();
++
++ while (1) {
++ ret = dwc2_submit_bulk_msg(udev, pipe, buffer, len, 0);
++ if (ret != -EAGAIN)
++ return ret;
++ if (is_timeout(start, USB_CNTL_TIMEOUT * MSECOND))
++ return -ETIMEDOUT;
++ }
++}
++
++static int dwc2_detect(struct device_d *dev)
++{
++ struct dwc2_priv *priv = dev->priv;
++
++ return usb_host_detect(&priv->host);
++}
++
++static int dwc2_probe(struct device_d *dev)
++{
++ struct resource *iores;
++ struct dwc2_priv *priv;
++ struct usb_host *host;
++ struct device_node *np = dev->device_node;
++ int ret;
++ uint32_t snpsid;
++
++ priv = xzalloc(sizeof(*priv));
++
++ iores = dev_request_mem_resource(dev, 0);
++ if (IS_ERR(iores))
++ return PTR_ERR(iores);
++
++ priv->regs = IOMEM(iores->start);
++ priv->dev = dev;
++
++ snpsid = readl(&priv->regs->gsnpsid);
++ dev_info(dev, "Core Release: %x.%03x\n",
++ snpsid >> 12 & 0xf, snpsid & 0xfff);
++
++ if ((snpsid & DWC2_SNPSID_DEVID_MASK) != DWC2_SNPSID_DEVID_VER_2xx &&
++ (snpsid & DWC2_SNPSID_DEVID_MASK) != DWC2_SNPSID_DEVID_VER_3xx) {
++ dev_info(dev, "SNPSID invalid (not DWC2 OTG device): %08x\n",
++ snpsid);
++ return -ENODEV;
++ }
++
++ priv->oc_disable = of_property_read_bool(np, "disable-over-current");
++ priv->hnp_srp_disable = of_property_read_bool(np, "hnp-srp-disable");
++ priv->dmabuf = dma_alloc(DWC2_DATA_BUF_SIZE);
++
++ host = &priv->host;
++
++ host->init = dwc2_init_common;
++ host->submit_int_msg = dwc2_submit_int_msg;
++ host->submit_control_msg = dwc2_submit_control_msg;
++ host->submit_bulk_msg = dwc2_submit_bulk_msg;
++
++ dev->priv = priv;
++ dev->detect = dwc2_detect;
++
++ ret = usb_register_host(host);
++ if (ret)
++ return ret;
++
++ return 0;
++}
++
++static void dwc2_remove(struct device_d *dev)
++{
++ struct dwc2_priv *priv = dev->priv;
++
++ dwc2_uninit_common(priv->regs);
++}
++
++static const struct of_device_id dwc2_dt_ids[] = {
++ { .compatible = "brcm,bcm2835-usb" },
++ { .compatible = "brcm,bcm2708-usb" },
++ { .compatible = "snps,dwc2" },
++ { /* sentinel */ }
++};
++
++static struct driver_d dwc2_driver = {
++ .name = "dwc2",
++ .probe = dwc2_probe,
++ .remove = dwc2_remove,
++ .of_compatible = DRV_OF_COMPAT(dwc2_dt_ids),
++};
++device_platform_driver(dwc2_driver);
+diff --git a/drivers/usb/host/dwc2.h b/drivers/usb/host/dwc2.h
+new file mode 100644
+index 000000000000..bdf338f1edff
+--- /dev/null
++++ b/drivers/usb/host/dwc2.h
+@@ -0,0 +1,778 @@
++/* SPDX-License-Identifier: GPL-2.0+ */
++/*
++ * Copyright (C) 2014 Marek Vasut <marex@denx.de>
++ */
++
++#ifndef __DWC2_H__
++#define __DWC2_H__
++
++struct dwc2_hc_regs {
++ u32 hcchar; /* 0x00 */
++ u32 hcsplt;
++ u32 hcint;
++ u32 hcintmsk;
++ u32 hctsiz; /* 0x10 */
++ u32 hcdma;
++ u32 reserved;
++ u32 hcdmab;
++};
++
++struct dwc2_host_regs {
++ u32 hcfg; /* 0x00 */
++ u32 hfir;
++ u32 hfnum;
++ u32 _pad_0x40c;
++ u32 hptxsts; /* 0x10 */
++ u32 haint;
++ u32 haintmsk;
++ u32 hflbaddr;
++};
++
++struct dwc2_core_regs {
++ u32 gotgctl; /* 0x000 */
++ u32 gotgint;
++ u32 gahbcfg;
++ u32 gusbcfg;
++ u32 grstctl; /* 0x010 */
++ u32 gintsts;
++ u32 gintmsk;
++ u32 grxstsr;
++ u32 grxstsp; /* 0x020 */
++ u32 grxfsiz;
++ u32 gnptxfsiz;
++ u32 gnptxsts;
++ u32 gi2cctl; /* 0x030 */
++ u32 gpvndctl;
++ u32 ggpio;
++ u32 guid;
++ u32 gsnpsid; /* 0x040 */
++ u32 ghwcfg1;
++ u32 ghwcfg2;
++ u32 ghwcfg3;
++ u32 ghwcfg4; /* 0x050 */
++ u32 glpmcfg;
++ u32 _pad_0x58_0x9c[42];
++ u32 hptxfsiz; /* 0x100 */
++ u32 dptxfsiz_dieptxf[15];
++ u32 _pad_0x140_0x3fc[176];
++ struct dwc2_host_regs host_regs; /* 0x400 */
++ u32 _pad_0x420_0x43c[8];
++ u32 hprt0; /* 0x440 */
++ u32 _pad_0x444_0x4fc[47];
++ struct dwc2_hc_regs hc_regs[16]; /* 0x500 */
++ u32 _pad_0x700_0xe00[448];
++ u32 pcgcctl; /* 0xe00 */
++};
++
++#define DWC2_GOTGCTL_SESREQSCS (1 << 0)
++#define DWC2_GOTGCTL_SESREQSCS_OFFSET 0
++#define DWC2_GOTGCTL_SESREQ (1 << 1)
++#define DWC2_GOTGCTL_SESREQ_OFFSET 1
++#define DWC2_GOTGCTL_HSTNEGSCS (1 << 8)
++#define DWC2_GOTGCTL_HSTNEGSCS_OFFSET 8
++#define DWC2_GOTGCTL_HNPREQ (1 << 9)
++#define DWC2_GOTGCTL_HNPREQ_OFFSET 9
++#define DWC2_GOTGCTL_HSTSETHNPEN (1 << 10)
++#define DWC2_GOTGCTL_HSTSETHNPEN_OFFSET 10
++#define DWC2_GOTGCTL_DEVHNPEN (1 << 11)
++#define DWC2_GOTGCTL_DEVHNPEN_OFFSET 11
++#define DWC2_GOTGCTL_CONIDSTS (1 << 16)
++#define DWC2_GOTGCTL_CONIDSTS_OFFSET 16
++#define DWC2_GOTGCTL_DBNCTIME (1 << 17)
++#define DWC2_GOTGCTL_DBNCTIME_OFFSET 17
++#define DWC2_GOTGCTL_ASESVLD (1 << 18)
++#define DWC2_GOTGCTL_ASESVLD_OFFSET 18
++#define DWC2_GOTGCTL_BSESVLD (1 << 19)
++#define DWC2_GOTGCTL_BSESVLD_OFFSET 19
++#define DWC2_GOTGCTL_OTGVER (1 << 20)
++#define DWC2_GOTGCTL_OTGVER_OFFSET 20
++#define DWC2_GOTGINT_SESENDDET (1 << 2)
++#define DWC2_GOTGINT_SESENDDET_OFFSET 2
++#define DWC2_GOTGINT_SESREQSUCSTSCHNG (1 << 8)
++#define DWC2_GOTGINT_SESREQSUCSTSCHNG_OFFSET 8
++#define DWC2_GOTGINT_HSTNEGSUCSTSCHNG (1 << 9)
++#define DWC2_GOTGINT_HSTNEGSUCSTSCHNG_OFFSET 9
++#define DWC2_GOTGINT_RESERVER10_16_MASK (0x7F << 10)
++#define DWC2_GOTGINT_RESERVER10_16_OFFSET 10
++#define DWC2_GOTGINT_HSTNEGDET (1 << 17)
++#define DWC2_GOTGINT_HSTNEGDET_OFFSET 17
++#define DWC2_GOTGINT_ADEVTOUTCHNG (1 << 18)
++#define DWC2_GOTGINT_ADEVTOUTCHNG_OFFSET 18
++#define DWC2_GOTGINT_DEBDONE (1 << 19)
++#define DWC2_GOTGINT_DEBDONE_OFFSET 19
++#define DWC2_GAHBCFG_GLBLINTRMSK (1 << 0)
++#define DWC2_GAHBCFG_GLBLINTRMSK_OFFSET 0
++#define DWC2_GAHBCFG_HBURSTLEN_SINGLE (0 << 1)
++#define DWC2_GAHBCFG_HBURSTLEN_INCR (1 << 1)
++#define DWC2_GAHBCFG_HBURSTLEN_INCR4 (3 << 1)
++#define DWC2_GAHBCFG_HBURSTLEN_INCR8 (5 << 1)
++#define DWC2_GAHBCFG_HBURSTLEN_INCR16 (7 << 1)
++#define DWC2_GAHBCFG_HBURSTLEN_MASK (0xF << 1)
++#define DWC2_GAHBCFG_HBURSTLEN_OFFSET 1
++#define DWC2_GAHBCFG_DMAENABLE (1 << 5)
++#define DWC2_GAHBCFG_DMAENABLE_OFFSET 5
++#define DWC2_GAHBCFG_NPTXFEMPLVL_TXFEMPLVL (1 << 7)
++#define DWC2_GAHBCFG_NPTXFEMPLVL_TXFEMPLVL_OFFSET 7
++#define DWC2_GAHBCFG_PTXFEMPLVL (1 << 8)
++#define DWC2_GAHBCFG_PTXFEMPLVL_OFFSET 8
++#define DWC2_GUSBCFG_TOUTCAL_MASK (0x7 << 0)
++#define DWC2_GUSBCFG_TOUTCAL_OFFSET 0
++#define DWC2_GUSBCFG_PHYIF (1 << 3)
++#define DWC2_GUSBCFG_PHYIF_OFFSET 3
++#define DWC2_GUSBCFG_ULPI_UTMI_SEL (1 << 4)
++#define DWC2_GUSBCFG_ULPI_UTMI_SEL_OFFSET 4
++#define DWC2_GUSBCFG_FSINTF (1 << 5)
++#define DWC2_GUSBCFG_FSINTF_OFFSET 5
++#define DWC2_GUSBCFG_PHYSEL (1 << 6)
++#define DWC2_GUSBCFG_PHYSEL_OFFSET 6
++#define DWC2_GUSBCFG_DDRSEL (1 << 7)
++#define DWC2_GUSBCFG_DDRSEL_OFFSET 7
++#define DWC2_GUSBCFG_SRPCAP (1 << 8)
++#define DWC2_GUSBCFG_SRPCAP_OFFSET 8
++#define DWC2_GUSBCFG_HNPCAP (1 << 9)
++#define DWC2_GUSBCFG_HNPCAP_OFFSET 9
++#define DWC2_GUSBCFG_USBTRDTIM_MASK (0xF << 10)
++#define DWC2_GUSBCFG_USBTRDTIM_OFFSET 10
++#define DWC2_GUSBCFG_NPTXFRWNDEN (1 << 14)
++#define DWC2_GUSBCFG_NPTXFRWNDEN_OFFSET 14
++#define DWC2_GUSBCFG_PHYLPWRCLKSEL (1 << 15)
++#define DWC2_GUSBCFG_PHYLPWRCLKSEL_OFFSET 15
++#define DWC2_GUSBCFG_OTGUTMIFSSEL (1 << 16)
++#define DWC2_GUSBCFG_OTGUTMIFSSEL_OFFSET 16
++#define DWC2_GUSBCFG_ULPI_FSLS (1 << 17)
++#define DWC2_GUSBCFG_ULPI_FSLS_OFFSET 17
++#define DWC2_GUSBCFG_ULPI_AUTO_RES (1 << 18)
++#define DWC2_GUSBCFG_ULPI_AUTO_RES_OFFSET 18
++#define DWC2_GUSBCFG_ULPI_CLK_SUS_M (1 << 19)
++#define DWC2_GUSBCFG_ULPI_CLK_SUS_M_OFFSET 19
++#define DWC2_GUSBCFG_ULPI_EXT_VBUS_DRV (1 << 20)
++#define DWC2_GUSBCFG_ULPI_EXT_VBUS_DRV_OFFSET 20
++#define DWC2_GUSBCFG_ULPI_INT_VBUS_INDICATOR (1 << 21)
++#define DWC2_GUSBCFG_ULPI_INT_VBUS_INDICATOR_OFFSET 21
++#define DWC2_GUSBCFG_TERM_SEL_DL_PULSE (1 << 22)
++#define DWC2_GUSBCFG_TERM_SEL_DL_PULSE_OFFSET 22
++#define DWC2_GUSBCFG_INDICATOR_PASSTHROUGH (1 << 24)
++#define DWC2_GUSBCFG_INDICATOR_PASSTHROUGH_OFFSET 24
++#define DWC2_GUSBCFG_IC_USB_CAP (1 << 26)
++#define DWC2_GUSBCFG_IC_USB_CAP_OFFSET 26
++#define DWC2_GUSBCFG_IC_TRAFFIC_PULL_REMOVE (1 << 27)
++#define DWC2_GUSBCFG_IC_TRAFFIC_PULL_REMOVE_OFFSET 27
++#define DWC2_GUSBCFG_TX_END_DELAY (1 << 28)
++#define DWC2_GUSBCFG_TX_END_DELAY_OFFSET 28
++#define DWC2_GUSBCFG_FORCEHOSTMODE (1 << 29)
++#define DWC2_GUSBCFG_FORCEHOSTMODE_OFFSET 29
++#define DWC2_GUSBCFG_FORCEDEVMODE (1 << 30)
++#define DWC2_GUSBCFG_FORCEDEVMODE_OFFSET 30
++#define DWC2_GLPMCTL_LPM_CAP_EN (1 << 0)
++#define DWC2_GLPMCTL_LPM_CAP_EN_OFFSET 0
++#define DWC2_GLPMCTL_APPL_RESP (1 << 1)
++#define DWC2_GLPMCTL_APPL_RESP_OFFSET 1
++#define DWC2_GLPMCTL_HIRD_MASK (0xF << 2)
++#define DWC2_GLPMCTL_HIRD_OFFSET 2
++#define DWC2_GLPMCTL_REM_WKUP_EN (1 << 6)
++#define DWC2_GLPMCTL_REM_WKUP_EN_OFFSET 6
++#define DWC2_GLPMCTL_EN_UTMI_SLEEP (1 << 7)
++#define DWC2_GLPMCTL_EN_UTMI_SLEEP_OFFSET 7
++#define DWC2_GLPMCTL_HIRD_THRES_MASK (0x1F << 8)
++#define DWC2_GLPMCTL_HIRD_THRES_OFFSET 8
++#define DWC2_GLPMCTL_LPM_RESP_MASK (0x3 << 13)
++#define DWC2_GLPMCTL_LPM_RESP_OFFSET 13
++#define DWC2_GLPMCTL_PRT_SLEEP_STS (1 << 15)
++#define DWC2_GLPMCTL_PRT_SLEEP_STS_OFFSET 15
++#define DWC2_GLPMCTL_SLEEP_STATE_RESUMEOK (1 << 16)
++#define DWC2_GLPMCTL_SLEEP_STATE_RESUMEOK_OFFSET 16
++#define DWC2_GLPMCTL_LPM_CHAN_INDEX_MASK (0xF << 17)
++#define DWC2_GLPMCTL_LPM_CHAN_INDEX_OFFSET 17
++#define DWC2_GLPMCTL_RETRY_COUNT_MASK (0x7 << 21)
++#define DWC2_GLPMCTL_RETRY_COUNT_OFFSET 21
++#define DWC2_GLPMCTL_SEND_LPM (1 << 24)
++#define DWC2_GLPMCTL_SEND_LPM_OFFSET 24
++#define DWC2_GLPMCTL_RETRY_COUNT_STS_MASK (0x7 << 25)
++#define DWC2_GLPMCTL_RETRY_COUNT_STS_OFFSET 25
++#define DWC2_GLPMCTL_HSIC_CONNECT (1 << 30)
++#define DWC2_GLPMCTL_HSIC_CONNECT_OFFSET 30
++#define DWC2_GLPMCTL_INV_SEL_HSIC (1 << 31)
++#define DWC2_GLPMCTL_INV_SEL_HSIC_OFFSET 31
++#define DWC2_GRSTCTL_CSFTRST (1 << 0)
++#define DWC2_GRSTCTL_CSFTRST_OFFSET 0
++#define DWC2_GRSTCTL_HSFTRST (1 << 1)
++#define DWC2_GRSTCTL_HSFTRST_OFFSET 1
++#define DWC2_GRSTCTL_HSTFRM (1 << 2)
++#define DWC2_GRSTCTL_HSTFRM_OFFSET 2
++#define DWC2_GRSTCTL_INTKNQFLSH (1 << 3)
++#define DWC2_GRSTCTL_INTKNQFLSH_OFFSET 3
++#define DWC2_GRSTCTL_RXFFLSH (1 << 4)
++#define DWC2_GRSTCTL_RXFFLSH_OFFSET 4
++#define DWC2_GRSTCTL_TXFFLSH (1 << 5)
++#define DWC2_GRSTCTL_TXFFLSH_OFFSET 5
++#define DWC2_GRSTCTL_TXFNUM_MASK (0x1F << 6)
++#define DWC2_GRSTCTL_TXFNUM_OFFSET 6
++#define DWC2_GRSTCTL_DMAREQ (1 << 30)
++#define DWC2_GRSTCTL_DMAREQ_OFFSET 30
++#define DWC2_GRSTCTL_AHBIDLE (1 << 31)
++#define DWC2_GRSTCTL_AHBIDLE_OFFSET 31
++#define DWC2_GINTMSK_MODEMISMATCH (1 << 1)
++#define DWC2_GINTMSK_MODEMISMATCH_OFFSET 1
++#define DWC2_GINTMSK_OTGINTR (1 << 2)
++#define DWC2_GINTMSK_OTGINTR_OFFSET 2
++#define DWC2_GINTMSK_SOFINTR (1 << 3)
++#define DWC2_GINTMSK_SOFINTR_OFFSET 3
++#define DWC2_GINTMSK_RXSTSQLVL (1 << 4)
++#define DWC2_GINTMSK_RXSTSQLVL_OFFSET 4
++#define DWC2_GINTMSK_NPTXFEMPTY (1 << 5)
++#define DWC2_GINTMSK_NPTXFEMPTY_OFFSET 5
++#define DWC2_GINTMSK_GINNAKEFF (1 << 6)
++#define DWC2_GINTMSK_GINNAKEFF_OFFSET 6
++#define DWC2_GINTMSK_GOUTNAKEFF (1 << 7)
++#define DWC2_GINTMSK_GOUTNAKEFF_OFFSET 7
++#define DWC2_GINTMSK_I2CINTR (1 << 9)
++#define DWC2_GINTMSK_I2CINTR_OFFSET 9
++#define DWC2_GINTMSK_ERLYSUSPEND (1 << 10)
++#define DWC2_GINTMSK_ERLYSUSPEND_OFFSET 10
++#define DWC2_GINTMSK_USBSUSPEND (1 << 11)
++#define DWC2_GINTMSK_USBSUSPEND_OFFSET 11
++#define DWC2_GINTMSK_USBRESET (1 << 12)
++#define DWC2_GINTMSK_USBRESET_OFFSET 12
++#define DWC2_GINTMSK_ENUMDONE (1 << 13)
++#define DWC2_GINTMSK_ENUMDONE_OFFSET 13
++#define DWC2_GINTMSK_ISOOUTDROP (1 << 14)
++#define DWC2_GINTMSK_ISOOUTDROP_OFFSET 14
++#define DWC2_GINTMSK_EOPFRAME (1 << 15)
++#define DWC2_GINTMSK_EOPFRAME_OFFSET 15
++#define DWC2_GINTMSK_EPMISMATCH (1 << 17)
++#define DWC2_GINTMSK_EPMISMATCH_OFFSET 17
++#define DWC2_GINTMSK_INEPINTR (1 << 18)
++#define DWC2_GINTMSK_INEPINTR_OFFSET 18
++#define DWC2_GINTMSK_OUTEPINTR (1 << 19)
++#define DWC2_GINTMSK_OUTEPINTR_OFFSET 19
++#define DWC2_GINTMSK_INCOMPLISOIN (1 << 20)
++#define DWC2_GINTMSK_INCOMPLISOIN_OFFSET 20
++#define DWC2_GINTMSK_INCOMPLISOOUT (1 << 21)
++#define DWC2_GINTMSK_INCOMPLISOOUT_OFFSET 21
++#define DWC2_GINTMSK_PORTINTR (1 << 24)
++#define DWC2_GINTMSK_PORTINTR_OFFSET 24
++#define DWC2_GINTMSK_HCINTR (1 << 25)
++#define DWC2_GINTMSK_HCINTR_OFFSET 25
++#define DWC2_GINTMSK_PTXFEMPTY (1 << 26)
++#define DWC2_GINTMSK_PTXFEMPTY_OFFSET 26
++#define DWC2_GINTMSK_LPMTRANRCVD (1 << 27)
++#define DWC2_GINTMSK_LPMTRANRCVD_OFFSET 27
++#define DWC2_GINTMSK_CONIDSTSCHNG (1 << 28)
++#define DWC2_GINTMSK_CONIDSTSCHNG_OFFSET 28
++#define DWC2_GINTMSK_DISCONNECT (1 << 29)
++#define DWC2_GINTMSK_DISCONNECT_OFFSET 29
++#define DWC2_GINTMSK_SESSREQINTR (1 << 30)
++#define DWC2_GINTMSK_SESSREQINTR_OFFSET 30
++#define DWC2_GINTMSK_WKUPINTR (1 << 31)
++#define DWC2_GINTMSK_WKUPINTR_OFFSET 31
++#define DWC2_GINTSTS_CURMODE_DEVICE (0 << 0)
++#define DWC2_GINTSTS_CURMODE_HOST (1 << 0)
++#define DWC2_GINTSTS_CURMODE (1 << 0)
++#define DWC2_GINTSTS_CURMODE_OFFSET 0
++#define DWC2_GINTSTS_MODEMISMATCH (1 << 1)
++#define DWC2_GINTSTS_MODEMISMATCH_OFFSET 1
++#define DWC2_GINTSTS_OTGINTR (1 << 2)
++#define DWC2_GINTSTS_OTGINTR_OFFSET 2
++#define DWC2_GINTSTS_SOFINTR (1 << 3)
++#define DWC2_GINTSTS_SOFINTR_OFFSET 3
++#define DWC2_GINTSTS_RXSTSQLVL (1 << 4)
++#define DWC2_GINTSTS_RXSTSQLVL_OFFSET 4
++#define DWC2_GINTSTS_NPTXFEMPTY (1 << 5)
++#define DWC2_GINTSTS_NPTXFEMPTY_OFFSET 5
++#define DWC2_GINTSTS_GINNAKEFF (1 << 6)
++#define DWC2_GINTSTS_GINNAKEFF_OFFSET 6
++#define DWC2_GINTSTS_GOUTNAKEFF (1 << 7)
++#define DWC2_GINTSTS_GOUTNAKEFF_OFFSET 7
++#define DWC2_GINTSTS_I2CINTR (1 << 9)
++#define DWC2_GINTSTS_I2CINTR_OFFSET 9
++#define DWC2_GINTSTS_ERLYSUSPEND (1 << 10)
++#define DWC2_GINTSTS_ERLYSUSPEND_OFFSET 10
++#define DWC2_GINTSTS_USBSUSPEND (1 << 11)
++#define DWC2_GINTSTS_USBSUSPEND_OFFSET 11
++#define DWC2_GINTSTS_USBRESET (1 << 12)
++#define DWC2_GINTSTS_USBRESET_OFFSET 12
++#define DWC2_GINTSTS_ENUMDONE (1 << 13)
++#define DWC2_GINTSTS_ENUMDONE_OFFSET 13
++#define DWC2_GINTSTS_ISOOUTDROP (1 << 14)
++#define DWC2_GINTSTS_ISOOUTDROP_OFFSET 14
++#define DWC2_GINTSTS_EOPFRAME (1 << 15)
++#define DWC2_GINTSTS_EOPFRAME_OFFSET 15
++#define DWC2_GINTSTS_INTOKENRX (1 << 16)
++#define DWC2_GINTSTS_INTOKENRX_OFFSET 16
++#define DWC2_GINTSTS_EPMISMATCH (1 << 17)
++#define DWC2_GINTSTS_EPMISMATCH_OFFSET 17
++#define DWC2_GINTSTS_INEPINT (1 << 18)
++#define DWC2_GINTSTS_INEPINT_OFFSET 18
++#define DWC2_GINTSTS_OUTEPINTR (1 << 19)
++#define DWC2_GINTSTS_OUTEPINTR_OFFSET 19
++#define DWC2_GINTSTS_INCOMPLISOIN (1 << 20)
++#define DWC2_GINTSTS_INCOMPLISOIN_OFFSET 20
++#define DWC2_GINTSTS_INCOMPLISOOUT (1 << 21)
++#define DWC2_GINTSTS_INCOMPLISOOUT_OFFSET 21
++#define DWC2_GINTSTS_PORTINTR (1 << 24)
++#define DWC2_GINTSTS_PORTINTR_OFFSET 24
++#define DWC2_GINTSTS_HCINTR (1 << 25)
++#define DWC2_GINTSTS_HCINTR_OFFSET 25
++#define DWC2_GINTSTS_PTXFEMPTY (1 << 26)
++#define DWC2_GINTSTS_PTXFEMPTY_OFFSET 26
++#define DWC2_GINTSTS_LPMTRANRCVD (1 << 27)
++#define DWC2_GINTSTS_LPMTRANRCVD_OFFSET 27
++#define DWC2_GINTSTS_CONIDSTSCHNG (1 << 28)
++#define DWC2_GINTSTS_CONIDSTSCHNG_OFFSET 28
++#define DWC2_GINTSTS_DISCONNECT (1 << 29)
++#define DWC2_GINTSTS_DISCONNECT_OFFSET 29
++#define DWC2_GINTSTS_SESSREQINTR (1 << 30)
++#define DWC2_GINTSTS_SESSREQINTR_OFFSET 30
++#define DWC2_GINTSTS_WKUPINTR (1 << 31)
++#define DWC2_GINTSTS_WKUPINTR_OFFSET 31
++#define DWC2_GRXSTS_EPNUM_MASK (0xF << 0)
++#define DWC2_GRXSTS_EPNUM_OFFSET 0
++#define DWC2_GRXSTS_BCNT_MASK (0x7FF << 4)
++#define DWC2_GRXSTS_BCNT_OFFSET 4
++#define DWC2_GRXSTS_DPID_MASK (0x3 << 15)
++#define DWC2_GRXSTS_DPID_OFFSET 15
++#define DWC2_GRXSTS_PKTSTS_MASK (0xF << 17)
++#define DWC2_GRXSTS_PKTSTS_OFFSET 17
++#define DWC2_GRXSTS_FN_MASK (0xF << 21)
++#define DWC2_GRXSTS_FN_OFFSET 21
++#define DWC2_FIFOSIZE_STARTADDR_MASK (0xFFFF << 0)
++#define DWC2_FIFOSIZE_STARTADDR_OFFSET 0
++#define DWC2_FIFOSIZE_DEPTH_MASK (0xFFFF << 16)
++#define DWC2_FIFOSIZE_DEPTH_OFFSET 16
++#define DWC2_GNPTXSTS_NPTXFSPCAVAIL_MASK (0xFFFF << 0)
++#define DWC2_GNPTXSTS_NPTXFSPCAVAIL_OFFSET 0
++#define DWC2_GNPTXSTS_NPTXQSPCAVAIL_MASK (0xFF << 16)
++#define DWC2_GNPTXSTS_NPTXQSPCAVAIL_OFFSET 16
++#define DWC2_GNPTXSTS_NPTXQTOP_TERMINATE (1 << 24)
++#define DWC2_GNPTXSTS_NPTXQTOP_TERMINATE_OFFSET 24
++#define DWC2_GNPTXSTS_NPTXQTOP_TOKEN_MASK (0x3 << 25)
++#define DWC2_GNPTXSTS_NPTXQTOP_TOKEN_OFFSET 25
++#define DWC2_GNPTXSTS_NPTXQTOP_CHNEP_MASK (0xF << 27)
++#define DWC2_GNPTXSTS_NPTXQTOP_CHNEP_OFFSET 27
++#define DWC2_DTXFSTS_TXFSPCAVAIL_MASK (0xFFFF << 0)
++#define DWC2_DTXFSTS_TXFSPCAVAIL_OFFSET 0
++#define DWC2_GI2CCTL_RWDATA_MASK (0xFF << 0)
++#define DWC2_GI2CCTL_RWDATA_OFFSET 0
++#define DWC2_GI2CCTL_REGADDR_MASK (0xFF << 8)
++#define DWC2_GI2CCTL_REGADDR_OFFSET 8
++#define DWC2_GI2CCTL_ADDR_MASK (0x7F << 16)
++#define DWC2_GI2CCTL_ADDR_OFFSET 16
++#define DWC2_GI2CCTL_I2CEN (1 << 23)
++#define DWC2_GI2CCTL_I2CEN_OFFSET 23
++#define DWC2_GI2CCTL_ACK (1 << 24)
++#define DWC2_GI2CCTL_ACK_OFFSET 24
++#define DWC2_GI2CCTL_I2CSUSPCTL (1 << 25)
++#define DWC2_GI2CCTL_I2CSUSPCTL_OFFSET 25
++#define DWC2_GI2CCTL_I2CDEVADDR_MASK (0x3 << 26)
++#define DWC2_GI2CCTL_I2CDEVADDR_OFFSET 26
++#define DWC2_GI2CCTL_RW (1 << 30)
++#define DWC2_GI2CCTL_RW_OFFSET 30
++#define DWC2_GI2CCTL_BSYDNE (1 << 31)
++#define DWC2_GI2CCTL_BSYDNE_OFFSET 31
++#define DWC2_HWCFG1_EP_DIR0_MASK (0x3 << 0)
++#define DWC2_HWCFG1_EP_DIR0_OFFSET 0
++#define DWC2_HWCFG1_EP_DIR1_MASK (0x3 << 2)
++#define DWC2_HWCFG1_EP_DIR1_OFFSET 2
++#define DWC2_HWCFG1_EP_DIR2_MASK (0x3 << 4)
++#define DWC2_HWCFG1_EP_DIR2_OFFSET 4
++#define DWC2_HWCFG1_EP_DIR3_MASK (0x3 << 6)
++#define DWC2_HWCFG1_EP_DIR3_OFFSET 6
++#define DWC2_HWCFG1_EP_DIR4_MASK (0x3 << 8)
++#define DWC2_HWCFG1_EP_DIR4_OFFSET 8
++#define DWC2_HWCFG1_EP_DIR5_MASK (0x3 << 10)
++#define DWC2_HWCFG1_EP_DIR5_OFFSET 10
++#define DWC2_HWCFG1_EP_DIR6_MASK (0x3 << 12)
++#define DWC2_HWCFG1_EP_DIR6_OFFSET 12
++#define DWC2_HWCFG1_EP_DIR7_MASK (0x3 << 14)
++#define DWC2_HWCFG1_EP_DIR7_OFFSET 14
++#define DWC2_HWCFG1_EP_DIR8_MASK (0x3 << 16)
++#define DWC2_HWCFG1_EP_DIR8_OFFSET 16
++#define DWC2_HWCFG1_EP_DIR9_MASK (0x3 << 18)
++#define DWC2_HWCFG1_EP_DIR9_OFFSET 18
++#define DWC2_HWCFG1_EP_DIR10_MASK (0x3 << 20)
++#define DWC2_HWCFG1_EP_DIR10_OFFSET 20
++#define DWC2_HWCFG1_EP_DIR11_MASK (0x3 << 22)
++#define DWC2_HWCFG1_EP_DIR11_OFFSET 22
++#define DWC2_HWCFG1_EP_DIR12_MASK (0x3 << 24)
++#define DWC2_HWCFG1_EP_DIR12_OFFSET 24
++#define DWC2_HWCFG1_EP_DIR13_MASK (0x3 << 26)
++#define DWC2_HWCFG1_EP_DIR13_OFFSET 26
++#define DWC2_HWCFG1_EP_DIR14_MASK (0x3 << 28)
++#define DWC2_HWCFG1_EP_DIR14_OFFSET 28
++#define DWC2_HWCFG1_EP_DIR15_MASK (0x3 << 30)
++#define DWC2_HWCFG1_EP_DIR15_OFFSET 30
++#define DWC2_HWCFG2_OP_MODE_MASK (0x7 << 0)
++#define DWC2_HWCFG2_OP_MODE_OFFSET 0
++#define DWC2_HWCFG2_ARCHITECTURE_SLAVE_ONLY (0x0 << 3)
++#define DWC2_HWCFG2_ARCHITECTURE_EXT_DMA (0x1 << 3)
++#define DWC2_HWCFG2_ARCHITECTURE_INT_DMA (0x2 << 3)
++#define DWC2_HWCFG2_ARCHITECTURE_MASK (0x3 << 3)
++#define DWC2_HWCFG2_ARCHITECTURE_OFFSET 3
++#define DWC2_HWCFG2_POINT2POINT (1 << 5)
++#define DWC2_HWCFG2_POINT2POINT_OFFSET 5
++#define DWC2_HWCFG2_HS_PHY_TYPE_MASK (0x3 << 6)
++#define DWC2_HWCFG2_HS_PHY_TYPE_OFFSET 6
++#define DWC2_HWCFG2_FS_PHY_TYPE_MASK (0x3 << 8)
++#define DWC2_HWCFG2_FS_PHY_TYPE_OFFSET 8
++#define DWC2_HWCFG2_NUM_DEV_EP_MASK (0xF << 10)
++#define DWC2_HWCFG2_NUM_DEV_EP_OFFSET 10
++#define DWC2_HWCFG2_NUM_HOST_CHAN_MASK (0xF << 14)
++#define DWC2_HWCFG2_NUM_HOST_CHAN_OFFSET 14
++#define DWC2_HWCFG2_PERIO_EP_SUPPORTED (1 << 18)
++#define DWC2_HWCFG2_PERIO_EP_SUPPORTED_OFFSET 18
++#define DWC2_HWCFG2_DYNAMIC_FIFO (1 << 19)
++#define DWC2_HWCFG2_DYNAMIC_FIFO_OFFSET 19
++#define DWC2_HWCFG2_MULTI_PROC_INT (1 << 20)
++#define DWC2_HWCFG2_MULTI_PROC_INT_OFFSET 20
++#define DWC2_HWCFG2_NONPERIO_TX_Q_DEPTH_MASK (0x3 << 22)
++#define DWC2_HWCFG2_NONPERIO_TX_Q_DEPTH_OFFSET 22
++#define DWC2_HWCFG2_HOST_PERIO_TX_Q_DEPTH_MASK (0x3 << 24)
++#define DWC2_HWCFG2_HOST_PERIO_TX_Q_DEPTH_OFFSET 24
++#define DWC2_HWCFG2_DEV_TOKEN_Q_DEPTH_MASK (0x1F << 26)
++#define DWC2_HWCFG2_DEV_TOKEN_Q_DEPTH_OFFSET 26
++#define DWC2_HWCFG3_XFER_SIZE_CNTR_WIDTH_MASK (0xF << 0)
++#define DWC2_HWCFG3_XFER_SIZE_CNTR_WIDTH_OFFSET 0
++#define DWC2_HWCFG3_PACKET_SIZE_CNTR_WIDTH_MASK (0x7 << 4)
++#define DWC2_HWCFG3_PACKET_SIZE_CNTR_WIDTH_OFFSET 4
++#define DWC2_HWCFG3_OTG_FUNC (1 << 7)
++#define DWC2_HWCFG3_OTG_FUNC_OFFSET 7
++#define DWC2_HWCFG3_I2C (1 << 8)
++#define DWC2_HWCFG3_I2C_OFFSET 8
++#define DWC2_HWCFG3_VENDOR_CTRL_IF (1 << 9)
++#define DWC2_HWCFG3_VENDOR_CTRL_IF_OFFSET 9
++#define DWC2_HWCFG3_OPTIONAL_FEATURES (1 << 10)
++#define DWC2_HWCFG3_OPTIONAL_FEATURES_OFFSET 10
++#define DWC2_HWCFG3_SYNCH_RESET_TYPE (1 << 11)
++#define DWC2_HWCFG3_SYNCH_RESET_TYPE_OFFSET 11
++#define DWC2_HWCFG3_OTG_ENABLE_IC_USB (1 << 12)
++#define DWC2_HWCFG3_OTG_ENABLE_IC_USB_OFFSET 12
++#define DWC2_HWCFG3_OTG_ENABLE_HSIC (1 << 13)
++#define DWC2_HWCFG3_OTG_ENABLE_HSIC_OFFSET 13
++#define DWC2_HWCFG3_OTG_LPM_EN (1 << 15)
++#define DWC2_HWCFG3_OTG_LPM_EN_OFFSET 15
++#define DWC2_HWCFG3_DFIFO_DEPTH_MASK (0xFFFF << 16)
++#define DWC2_HWCFG3_DFIFO_DEPTH_OFFSET 16
++#define DWC2_HWCFG4_NUM_DEV_PERIO_IN_EP_MASK (0xF << 0)
++#define DWC2_HWCFG4_NUM_DEV_PERIO_IN_EP_OFFSET 0
++#define DWC2_HWCFG4_POWER_OPTIMIZ (1 << 4)
++#define DWC2_HWCFG4_POWER_OPTIMIZ_OFFSET 4
++#define DWC2_HWCFG4_MIN_AHB_FREQ_MASK (0x1FF << 5)
++#define DWC2_HWCFG4_MIN_AHB_FREQ_OFFSET 5
++#define DWC2_HWCFG4_UTMI_PHY_DATA_WIDTH_MASK (0x3 << 14)
++#define DWC2_HWCFG4_UTMI_PHY_DATA_WIDTH_OFFSET 14
++#define DWC2_HWCFG4_NUM_DEV_MODE_CTRL_EP_MASK (0xF << 16)
++#define DWC2_HWCFG4_NUM_DEV_MODE_CTRL_EP_OFFSET 16
++#define DWC2_HWCFG4_IDDIG_FILT_EN (1 << 20)
++#define DWC2_HWCFG4_IDDIG_FILT_EN_OFFSET 20
++#define DWC2_HWCFG4_VBUS_VALID_FILT_EN (1 << 21)
++#define DWC2_HWCFG4_VBUS_VALID_FILT_EN_OFFSET 21
++#define DWC2_HWCFG4_A_VALID_FILT_EN (1 << 22)
++#define DWC2_HWCFG4_A_VALID_FILT_EN_OFFSET 22
++#define DWC2_HWCFG4_B_VALID_FILT_EN (1 << 23)
++#define DWC2_HWCFG4_B_VALID_FILT_EN_OFFSET 23
++#define DWC2_HWCFG4_SESSION_END_FILT_EN (1 << 24)
++#define DWC2_HWCFG4_SESSION_END_FILT_EN_OFFSET 24
++#define DWC2_HWCFG4_DED_FIFO_EN (1 << 25)
++#define DWC2_HWCFG4_DED_FIFO_EN_OFFSET 25
++#define DWC2_HWCFG4_NUM_IN_EPS_MASK (0xF << 26)
++#define DWC2_HWCFG4_NUM_IN_EPS_OFFSET 26
++#define DWC2_HWCFG4_DESC_DMA (1 << 30)
++#define DWC2_HWCFG4_DESC_DMA_OFFSET 30
++#define DWC2_HWCFG4_DESC_DMA_DYN (1 << 31)
++#define DWC2_HWCFG4_DESC_DMA_DYN_OFFSET 31
++#define DWC2_HCFG_FSLSPCLKSEL_30_60_MHZ 0
++#define DWC2_HCFG_FSLSPCLKSEL_48_MHZ 1
++#define DWC2_HCFG_FSLSPCLKSEL_6_MHZ 2
++#define DWC2_HCFG_FSLSPCLKSEL_MASK (0x3 << 0)
++#define DWC2_HCFG_FSLSPCLKSEL_OFFSET 0
++#define DWC2_HCFG_FSLSSUPP (1 << 2)
++#define DWC2_HCFG_FSLSSUPP_OFFSET 2
++#define DWC2_HCFG_DESCDMA (1 << 23)
++#define DWC2_HCFG_DESCDMA_OFFSET 23
++#define DWC2_HCFG_FRLISTEN_MASK (0x3 << 24)
++#define DWC2_HCFG_FRLISTEN_OFFSET 24
++#define DWC2_HCFG_PERSCHEDENA (1 << 26)
++#define DWC2_HCFG_PERSCHEDENA_OFFSET 26
++#define DWC2_HCFG_PERSCHEDSTAT (1 << 27)
++#define DWC2_HCFG_PERSCHEDSTAT_OFFSET 27
++#define DWC2_HFIR_FRINT_MASK (0xFFFF << 0)
++#define DWC2_HFIR_FRINT_OFFSET 0
++#define DWC2_HFNUM_FRNUM_MASK (0xFFFF << 0)
++#define DWC2_HFNUM_FRNUM_OFFSET 0
++#define DWC2_HFNUM_FRREM_MASK (0xFFFF << 16)
++#define DWC2_HFNUM_FRREM_OFFSET 16
++#define DWC2_HFNUM_MAX_FRNUM 0x3FFF
++#define DWC2_HPTXSTS_PTXFSPCAVAIL_MASK (0xFFFF << 0)
++#define DWC2_HPTXSTS_PTXFSPCAVAIL_OFFSET 0
++#define DWC2_HPTXSTS_PTXQSPCAVAIL_MASK (0xFF << 16)
++#define DWC2_HPTXSTS_PTXQSPCAVAIL_OFFSET 16
++#define DWC2_HPTXSTS_PTXQTOP_TERMINATE (1 << 24)
++#define DWC2_HPTXSTS_PTXQTOP_TERMINATE_OFFSET 24
++#define DWC2_HPTXSTS_PTXQTOP_TOKEN_MASK (0x3 << 25)
++#define DWC2_HPTXSTS_PTXQTOP_TOKEN_OFFSET 25
++#define DWC2_HPTXSTS_PTXQTOP_CHNUM_MASK (0xF << 27)
++#define DWC2_HPTXSTS_PTXQTOP_CHNUM_OFFSET 27
++#define DWC2_HPTXSTS_PTXQTOP_ODD (1 << 31)
++#define DWC2_HPTXSTS_PTXQTOP_ODD_OFFSET 31
++#define DWC2_HPRT0_PRTCONNSTS (1 << 0)
++#define DWC2_HPRT0_PRTCONNSTS_OFFSET 0
++#define DWC2_HPRT0_PRTCONNDET (1 << 1)
++#define DWC2_HPRT0_PRTCONNDET_OFFSET 1
++#define DWC2_HPRT0_PRTENA (1 << 2)
++#define DWC2_HPRT0_PRTENA_OFFSET 2
++#define DWC2_HPRT0_PRTENCHNG (1 << 3)
++#define DWC2_HPRT0_PRTENCHNG_OFFSET 3
++#define DWC2_HPRT0_PRTOVRCURRACT (1 << 4)
++#define DWC2_HPRT0_PRTOVRCURRACT_OFFSET 4
++#define DWC2_HPRT0_PRTOVRCURRCHNG (1 << 5)
++#define DWC2_HPRT0_PRTOVRCURRCHNG_OFFSET 5
++#define DWC2_HPRT0_PRTRES (1 << 6)
++#define DWC2_HPRT0_PRTRES_OFFSET 6
++#define DWC2_HPRT0_PRTSUSP (1 << 7)
++#define DWC2_HPRT0_PRTSUSP_OFFSET 7
++#define DWC2_HPRT0_PRTRST (1 << 8)
++#define DWC2_HPRT0_PRTRST_OFFSET 8
++#define DWC2_HPRT0_PRTLNSTS_MASK (0x3 << 10)
++#define DWC2_HPRT0_PRTLNSTS_OFFSET 10
++#define DWC2_HPRT0_PRTPWR (1 << 12)
++#define DWC2_HPRT0_PRTPWR_OFFSET 12
++#define DWC2_HPRT0_PRTTSTCTL_MASK (0xF << 13)
++#define DWC2_HPRT0_PRTTSTCTL_OFFSET 13
++#define DWC2_HPRT0_PRTSPD_HIGH (0 << 17)
++#define DWC2_HPRT0_PRTSPD_FULL (1 << 17)
++#define DWC2_HPRT0_PRTSPD_LOW (2 << 17)
++#define DWC2_HPRT0_PRTSPD_MASK (0x3 << 17)
++#define DWC2_HPRT0_PRTSPD_OFFSET 17
++#define DWC2_HAINT_CH0 (1 << 0)
++#define DWC2_HAINT_CH0_OFFSET 0
++#define DWC2_HAINT_CH1 (1 << 1)
++#define DWC2_HAINT_CH1_OFFSET 1
++#define DWC2_HAINT_CH2 (1 << 2)
++#define DWC2_HAINT_CH2_OFFSET 2
++#define DWC2_HAINT_CH3 (1 << 3)
++#define DWC2_HAINT_CH3_OFFSET 3
++#define DWC2_HAINT_CH4 (1 << 4)
++#define DWC2_HAINT_CH4_OFFSET 4
++#define DWC2_HAINT_CH5 (1 << 5)
++#define DWC2_HAINT_CH5_OFFSET 5
++#define DWC2_HAINT_CH6 (1 << 6)
++#define DWC2_HAINT_CH6_OFFSET 6
++#define DWC2_HAINT_CH7 (1 << 7)
++#define DWC2_HAINT_CH7_OFFSET 7
++#define DWC2_HAINT_CH8 (1 << 8)
++#define DWC2_HAINT_CH8_OFFSET 8
++#define DWC2_HAINT_CH9 (1 << 9)
++#define DWC2_HAINT_CH9_OFFSET 9
++#define DWC2_HAINT_CH10 (1 << 10)
++#define DWC2_HAINT_CH10_OFFSET 10
++#define DWC2_HAINT_CH11 (1 << 11)
++#define DWC2_HAINT_CH11_OFFSET 11
++#define DWC2_HAINT_CH12 (1 << 12)
++#define DWC2_HAINT_CH12_OFFSET 12
++#define DWC2_HAINT_CH13 (1 << 13)
++#define DWC2_HAINT_CH13_OFFSET 13
++#define DWC2_HAINT_CH14 (1 << 14)
++#define DWC2_HAINT_CH14_OFFSET 14
++#define DWC2_HAINT_CH15 (1 << 15)
++#define DWC2_HAINT_CH15_OFFSET 15
++#define DWC2_HAINT_CHINT_MASK 0xffff
++#define DWC2_HAINT_CHINT_OFFSET 0
++#define DWC2_HAINTMSK_CH0 (1 << 0)
++#define DWC2_HAINTMSK_CH0_OFFSET 0
++#define DWC2_HAINTMSK_CH1 (1 << 1)
++#define DWC2_HAINTMSK_CH1_OFFSET 1
++#define DWC2_HAINTMSK_CH2 (1 << 2)
++#define DWC2_HAINTMSK_CH2_OFFSET 2
++#define DWC2_HAINTMSK_CH3 (1 << 3)
++#define DWC2_HAINTMSK_CH3_OFFSET 3
++#define DWC2_HAINTMSK_CH4 (1 << 4)
++#define DWC2_HAINTMSK_CH4_OFFSET 4
++#define DWC2_HAINTMSK_CH5 (1 << 5)
++#define DWC2_HAINTMSK_CH5_OFFSET 5
++#define DWC2_HAINTMSK_CH6 (1 << 6)
++#define DWC2_HAINTMSK_CH6_OFFSET 6
++#define DWC2_HAINTMSK_CH7 (1 << 7)
++#define DWC2_HAINTMSK_CH7_OFFSET 7
++#define DWC2_HAINTMSK_CH8 (1 << 8)
++#define DWC2_HAINTMSK_CH8_OFFSET 8
++#define DWC2_HAINTMSK_CH9 (1 << 9)
++#define DWC2_HAINTMSK_CH9_OFFSET 9
++#define DWC2_HAINTMSK_CH10 (1 << 10)
++#define DWC2_HAINTMSK_CH10_OFFSET 10
++#define DWC2_HAINTMSK_CH11 (1 << 11)
++#define DWC2_HAINTMSK_CH11_OFFSET 11
++#define DWC2_HAINTMSK_CH12 (1 << 12)
++#define DWC2_HAINTMSK_CH12_OFFSET 12
++#define DWC2_HAINTMSK_CH13 (1 << 13)
++#define DWC2_HAINTMSK_CH13_OFFSET 13
++#define DWC2_HAINTMSK_CH14 (1 << 14)
++#define DWC2_HAINTMSK_CH14_OFFSET 14
++#define DWC2_HAINTMSK_CH15 (1 << 15)
++#define DWC2_HAINTMSK_CH15_OFFSET 15
++#define DWC2_HAINTMSK_CHINT_MASK 0xffff
++#define DWC2_HAINTMSK_CHINT_OFFSET 0
++#define DWC2_HCCHAR_MPS_MASK (0x7FF << 0)
++#define DWC2_HCCHAR_MPS_OFFSET 0
++#define DWC2_HCCHAR_EPNUM_MASK (0xF << 11)
++#define DWC2_HCCHAR_EPNUM_OFFSET 11
++#define DWC2_HCCHAR_EPDIR (1 << 15)
++#define DWC2_HCCHAR_EPDIR_OFFSET 15
++#define DWC2_HCCHAR_LSPDDEV (1 << 17)
++#define DWC2_HCCHAR_LSPDDEV_OFFSET 17
++#define DWC2_HCCHAR_EPTYPE_CONTROL 0
++#define DWC2_HCCHAR_EPTYPE_ISOC 1
++#define DWC2_HCCHAR_EPTYPE_BULK 2
++#define DWC2_HCCHAR_EPTYPE_INTR 3
++#define DWC2_HCCHAR_EPTYPE_MASK (0x3 << 18)
++#define DWC2_HCCHAR_EPTYPE_OFFSET 18
++#define DWC2_HCCHAR_MULTICNT_MASK (0x3 << 20)
++#define DWC2_HCCHAR_MULTICNT_OFFSET 20
++#define DWC2_HCCHAR_DEVADDR_MASK (0x7F << 22)
++#define DWC2_HCCHAR_DEVADDR_OFFSET 22
++#define DWC2_HCCHAR_ODDFRM (1 << 29)
++#define DWC2_HCCHAR_ODDFRM_OFFSET 29
++#define DWC2_HCCHAR_CHDIS (1 << 30)
++#define DWC2_HCCHAR_CHDIS_OFFSET 30
++#define DWC2_HCCHAR_CHEN (1 << 31)
++#define DWC2_HCCHAR_CHEN_OFFSET 31
++#define DWC2_HCSPLT_PRTADDR_MASK (0x7F << 0)
++#define DWC2_HCSPLT_PRTADDR_OFFSET 0
++#define DWC2_HCSPLT_HUBADDR_MASK (0x7F << 7)
++#define DWC2_HCSPLT_HUBADDR_OFFSET 7
++#define DWC2_HCSPLT_XACTPOS_MASK (0x3 << 14)
++#define DWC2_HCSPLT_XACTPOS_OFFSET 14
++#define DWC2_HCSPLT_COMPSPLT (1 << 16)
++#define DWC2_HCSPLT_COMPSPLT_OFFSET 16
++#define DWC2_HCSPLT_SPLTENA (1 << 31)
++#define DWC2_HCSPLT_SPLTENA_OFFSET 31
++#define DWC2_HCINT_XFERCOMP (1 << 0)
++#define DWC2_HCINT_XFERCOMP_OFFSET 0
++#define DWC2_HCINT_CHHLTD (1 << 1)
++#define DWC2_HCINT_CHHLTD_OFFSET 1
++#define DWC2_HCINT_AHBERR (1 << 2)
++#define DWC2_HCINT_AHBERR_OFFSET 2
++#define DWC2_HCINT_STALL (1 << 3)
++#define DWC2_HCINT_STALL_OFFSET 3
++#define DWC2_HCINT_NAK (1 << 4)
++#define DWC2_HCINT_NAK_OFFSET 4
++#define DWC2_HCINT_ACK (1 << 5)
++#define DWC2_HCINT_ACK_OFFSET 5
++#define DWC2_HCINT_NYET (1 << 6)
++#define DWC2_HCINT_NYET_OFFSET 6
++#define DWC2_HCINT_XACTERR (1 << 7)
++#define DWC2_HCINT_XACTERR_OFFSET 7
++#define DWC2_HCINT_BBLERR (1 << 8)
++#define DWC2_HCINT_BBLERR_OFFSET 8
++#define DWC2_HCINT_FRMOVRUN (1 << 9)
++#define DWC2_HCINT_FRMOVRUN_OFFSET 9
++#define DWC2_HCINT_DATATGLERR (1 << 10)
++#define DWC2_HCINT_DATATGLERR_OFFSET 10
++#define DWC2_HCINT_BNA (1 << 11)
++#define DWC2_HCINT_BNA_OFFSET 11
++#define DWC2_HCINT_XCS_XACT (1 << 12)
++#define DWC2_HCINT_XCS_XACT_OFFSET 12
++#define DWC2_HCINT_FRM_LIST_ROLL (1 << 13)
++#define DWC2_HCINT_FRM_LIST_ROLL_OFFSET 13
++#define DWC2_HCINTMSK_XFERCOMPL (1 << 0)
++#define DWC2_HCINTMSK_XFERCOMPL_OFFSET 0
++#define DWC2_HCINTMSK_CHHLTD (1 << 1)
++#define DWC2_HCINTMSK_CHHLTD_OFFSET 1
++#define DWC2_HCINTMSK_AHBERR (1 << 2)
++#define DWC2_HCINTMSK_AHBERR_OFFSET 2
++#define DWC2_HCINTMSK_STALL (1 << 3)
++#define DWC2_HCINTMSK_STALL_OFFSET 3
++#define DWC2_HCINTMSK_NAK (1 << 4)
++#define DWC2_HCINTMSK_NAK_OFFSET 4
++#define DWC2_HCINTMSK_ACK (1 << 5)
++#define DWC2_HCINTMSK_ACK_OFFSET 5
++#define DWC2_HCINTMSK_NYET (1 << 6)
++#define DWC2_HCINTMSK_NYET_OFFSET 6
++#define DWC2_HCINTMSK_XACTERR (1 << 7)
++#define DWC2_HCINTMSK_XACTERR_OFFSET 7
++#define DWC2_HCINTMSK_BBLERR (1 << 8)
++#define DWC2_HCINTMSK_BBLERR_OFFSET 8
++#define DWC2_HCINTMSK_FRMOVRUN (1 << 9)
++#define DWC2_HCINTMSK_FRMOVRUN_OFFSET 9
++#define DWC2_HCINTMSK_DATATGLERR (1 << 10)
++#define DWC2_HCINTMSK_DATATGLERR_OFFSET 10
++#define DWC2_HCINTMSK_BNA (1 << 11)
++#define DWC2_HCINTMSK_BNA_OFFSET 11
++#define DWC2_HCINTMSK_XCS_XACT (1 << 12)
++#define DWC2_HCINTMSK_XCS_XACT_OFFSET 12
++#define DWC2_HCINTMSK_FRM_LIST_ROLL (1 << 13)
++#define DWC2_HCINTMSK_FRM_LIST_ROLL_OFFSET 13
++#define DWC2_HCTSIZ_XFERSIZE_MASK 0x7ffff
++#define DWC2_HCTSIZ_XFERSIZE_OFFSET 0
++#define DWC2_HCTSIZ_SCHINFO_MASK 0xff
++#define DWC2_HCTSIZ_SCHINFO_OFFSET 0
++#define DWC2_HCTSIZ_NTD_MASK (0xff << 8)
++#define DWC2_HCTSIZ_NTD_OFFSET 8
++#define DWC2_HCTSIZ_PKTCNT_MASK (0x3ff << 19)
++#define DWC2_HCTSIZ_PKTCNT_OFFSET 19
++#define DWC2_HCTSIZ_PID_MASK (0x3 << 29)
++#define DWC2_HCTSIZ_PID_OFFSET 29
++#define DWC2_HCTSIZ_DOPNG (1 << 31)
++#define DWC2_HCTSIZ_DOPNG_OFFSET 31
++#define DWC2_HCDMA_CTD_MASK (0xFF << 3)
++#define DWC2_HCDMA_CTD_OFFSET 3
++#define DWC2_HCDMA_DMA_ADDR_MASK (0x1FFFFF << 11)
++#define DWC2_HCDMA_DMA_ADDR_OFFSET 11
++#define DWC2_PCGCCTL_STOPPCLK (1 << 0)
++#define DWC2_PCGCCTL_STOPPCLK_OFFSET 0
++#define DWC2_PCGCCTL_GATEHCLK (1 << 1)
++#define DWC2_PCGCCTL_GATEHCLK_OFFSET 1
++#define DWC2_PCGCCTL_PWRCLMP (1 << 2)
++#define DWC2_PCGCCTL_PWRCLMP_OFFSET 2
++#define DWC2_PCGCCTL_RSTPDWNMODULE (1 << 3)
++#define DWC2_PCGCCTL_RSTPDWNMODULE_OFFSET 3
++#define DWC2_PCGCCTL_PHYSUSPENDED (1 << 4)
++#define DWC2_PCGCCTL_PHYSUSPENDED_OFFSET 4
++#define DWC2_PCGCCTL_ENBL_SLEEP_GATING (1 << 5)
++#define DWC2_PCGCCTL_ENBL_SLEEP_GATING_OFFSET 5
++#define DWC2_PCGCCTL_PHY_IN_SLEEP (1 << 6)
++#define DWC2_PCGCCTL_PHY_IN_SLEEP_OFFSET 6
++#define DWC2_PCGCCTL_DEEP_SLEEP (1 << 7)
++#define DWC2_PCGCCTL_DEEP_SLEEP_OFFSET 7
++#define DWC2_SNPSID_DEVID_VER_2xx (0x4f542 << 12)
++#define DWC2_SNPSID_DEVID_VER_3xx (0x4f543 << 12)
++#define DWC2_SNPSID_DEVID_MASK (0xfffff << 12)
++#define DWC2_SNPSID_DEVID_OFFSET 12
++
++/* Host controller specific */
++#define DWC2_HC_PID_DATA0 0
++#define DWC2_HC_PID_DATA2 1
++#define DWC2_HC_PID_DATA1 2
++#define DWC2_HC_PID_MDATA 3
++#define DWC2_HC_PID_SETUP 3
++
++/* roothub.a masks */
++#define RH_A_NDP (0xff << 0) /* number of downstream ports */
++#define RH_A_PSM (1 << 8) /* power switching mode */
++#define RH_A_NPS (1 << 9) /* no power switching */
++#define RH_A_DT (1 << 10) /* device type (mbz) */
++#define RH_A_OCPM (1 << 11) /* over current protection mode */
++#define RH_A_NOCP (1 << 12) /* no over current protection */
++#define RH_A_POTPGT (0xff << 24) /* power on to power good time */
++
++/* roothub.b masks */
++#define RH_B_DR 0x0000ffff /* device removable flags */
++#define RH_B_PPCM 0xffff0000 /* port power control mask */
++
++/* Default driver configuration */
++#define CONFIG_DWC2_MAX_CHANNELS 16 /* Max # of EPs */
++#define CONFIG_DWC2_HOST_RX_FIFO_SIZE (516 + CONFIG_DWC2_MAX_CHANNELS)
++#define CONFIG_DWC2_HOST_NPERIO_TX_FIFO_SIZE 0x100 /* nPeriodic TX FIFO */
++#define CONFIG_DWC2_HOST_PERIO_TX_FIFO_SIZE 0x200 /* Periodic TX FIFO */
++#define CONFIG_DWC2_MAX_TRANSFER_SIZE 65535
++#define CONFIG_DWC2_MAX_PACKET_COUNT 511
++
++#define DWC2_PHY_TYPE_FS 0
++#define DWC2_PHY_TYPE_UTMI 1
++#define DWC2_PHY_TYPE_ULPI 2
++#define CONFIG_DWC2_PHY_TYPE DWC2_PHY_TYPE_UTMI /* PHY type */
++#define CONFIG_DWC2_UTMI_WIDTH 8 /* UTMI bus width (8/16) */
++
++#define CONFIG_DWC2_PHY_ULPI_EXT_VBUS /* ULPI PHY controls VBUS */
++#define CONFIG_DWC2_TX_THR_LENGTH 64
++
++#endif /* __DWC2_H__ */
diff --git a/configs/platform-v7a/patches/barebox-2019.12.0/0011-ARM-bcm2835-mbox-Remove-response-valid-check.patch b/configs/platform-v7a/patches/barebox-2019.12.0/0011-ARM-bcm2835-mbox-Remove-response-valid-check.patch
new file mode 100644
index 0000000..3bcf32d
--- /dev/null
+++ b/configs/platform-v7a/patches/barebox-2019.12.0/0011-ARM-bcm2835-mbox-Remove-response-valid-check.patch
@@ -0,0 +1,29 @@
+From: Sascha Hauer <s.hauer@pengutronix.de>
+Date: Tue, 7 Jan 2020 10:45:35 +0100
+Subject: [PATCH] ARM: bcm2835 mbox: Remove response valid check
+
+Not all messages return a valid response as they do not send a response
+at all. This is at least true for the SET_GPIO_STATE and SET_GPIO_CONFIG
+messages.
+
+Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
+---
+ arch/arm/mach-bcm283x/mbox.c | 5 -----
+ 1 file changed, 5 deletions(-)
+
+diff --git a/arch/arm/mach-bcm283x/mbox.c b/arch/arm/mach-bcm283x/mbox.c
+index b295993359fa..4405efaffd39 100644
+--- a/arch/arm/mach-bcm283x/mbox.c
++++ b/arch/arm/mach-bcm283x/mbox.c
+@@ -137,11 +137,6 @@ int bcm2835_mbox_call_prop(u32 chan, struct bcm2835_mbox_hdr *buffer)
+ tag = (void *)(buffer + 1);
+ tag_index = 0;
+ while (tag->tag) {
+- if (!(tag->val_len & BCM2835_MBOX_TAG_VAL_LEN_RESPONSE)) {
+- printf("mbox: Tag %d missing val_len response bit\n",
+- tag_index);
+- return -EIO;
+- }
+ /*
+ * Clear the reponse bit so clients can just look right at the
+ * length field without extra processing
diff --git a/configs/platform-v7a/patches/barebox-2019.12.0/0012-gpio-Add-raspberrypi-exp-gpio-driver.patch b/configs/platform-v7a/patches/barebox-2019.12.0/0012-gpio-Add-raspberrypi-exp-gpio-driver.patch
new file mode 100644
index 0000000..dcfc4c2
--- /dev/null
+++ b/configs/platform-v7a/patches/barebox-2019.12.0/0012-gpio-Add-raspberrypi-exp-gpio-driver.patch
@@ -0,0 +1,335 @@
+From: Sascha Hauer <s.hauer@pengutronix.de>
+Date: Tue, 7 Jan 2020 10:55:11 +0100
+Subject: [PATCH] gpio: Add raspberrypi exp gpio driver
+
+Taken from the kernel adopted to barebox.
+
+Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
+---
+ arch/arm/mach-bcm283x/include/mach/mbox.h | 4 +
+ drivers/gpio/Kconfig | 7 +
+ drivers/gpio/Makefile | 1 +
+ drivers/gpio/gpio-raspberrypi-exp.c | 272 ++++++++++++++++++++++++++++++
+ 4 files changed, 284 insertions(+)
+ create mode 100644 drivers/gpio/gpio-raspberrypi-exp.c
+
+diff --git a/arch/arm/mach-bcm283x/include/mach/mbox.h b/arch/arm/mach-bcm283x/include/mach/mbox.h
+index 6db961b8076b..f10f5bc14844 100644
+--- a/arch/arm/mach-bcm283x/include/mach/mbox.h
++++ b/arch/arm/mach-bcm283x/include/mach/mbox.h
+@@ -126,6 +126,10 @@ struct bcm2835_mbox_tag_hdr {
+ */
+
+ #define BCM2835_MBOX_TAG_GET_BOARD_REV 0x00010002
++#define BCM2835_MBOX_TAG_GET_GPIO_STATE 0x00030041
++#define BCM2835_MBOX_TAG_SET_GPIO_STATE 0x00038041
++#define BCM2835_MBOX_TAG_GET_GPIO_CONFIG 0x00030043
++#define BCM2835_MBOX_TAG_SET_GPIO_CONFIG 0x00038043
+
+ /*
+ * ids
+diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
+index 0f924d135f0e..7e4fc90d3934 100644
+--- a/drivers/gpio/Kconfig
++++ b/drivers/gpio/Kconfig
+@@ -129,6 +129,13 @@ config GPIO_PL061
+ help
+ Say yes here to support the PrimeCell PL061 GPIO device
+
++config GPIO_RASPBERRYPI_EXP
++ bool "Raspberry Pi 3 GPIO Expander"
++ depends on ARCH_BCM283X
++ help
++ Turn on GPIO support for the expander on Raspberry Pi 3 boards, using
++ the firmware mailbox to communicate with VideoCore on BCM283x chips.
++
+ config GPIO_STMPE
+ depends on MFD_STMPE
+ bool "STMPE GPIO Expander"
+diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
+index bc5c500e4d27..77dcf58f640d 100644
+--- a/drivers/gpio/Makefile
++++ b/drivers/gpio/Makefile
+@@ -22,3 +22,4 @@ obj-$(CONFIG_GPIO_TEGRA) += gpio-tegra.o
+ obj-$(CONFIG_GPIO_DESIGNWARE) += gpio-dw.o
+ obj-$(CONFIG_GPIO_SX150X) += gpio-sx150x.o
+ obj-$(CONFIG_GPIO_VF610) += gpio-vf610.o
++obj-$(CONFIG_GPIO_RASPBERRYPI_EXP) += gpio-raspberrypi-exp.o
+diff --git a/drivers/gpio/gpio-raspberrypi-exp.c b/drivers/gpio/gpio-raspberrypi-exp.c
+new file mode 100644
+index 000000000000..0713e3ca5fb6
+--- /dev/null
++++ b/drivers/gpio/gpio-raspberrypi-exp.c
+@@ -0,0 +1,272 @@
++// SPDX-License-Identifier: GPL-2.0+
++/*
++ * Raspberry Pi 3 expander GPIO driver
++ *
++ * Uses the firmware mailbox service to communicate with the
++ * GPIO expander on the VPU.
++ *
++ * Copyright (C) 2017 Raspberry Pi Trading Ltd.
++ */
++
++#include <common.h>
++#include <gpio.h>
++#include <init.h>
++#include <mach/mbox.h>
++
++#define NUM_GPIO 8
++
++#define RPI_EXP_GPIO_BASE 128
++
++#define RPI_EXP_GPIO_DIR_IN 0
++#define RPI_EXP_GPIO_DIR_OUT 1
++
++struct rpi_exp_gpio {
++ struct gpio_chip gc;
++ struct rpi_firmware *fw;
++};
++
++/* VC4 firmware mailbox interface data structures */
++struct gpio_set_config {
++ struct bcm2835_mbox_hdr hdr; /* buf_size, code */
++ struct bcm2835_mbox_tag_hdr tag_hdr; /* tag, val_buf_size, val_len */
++ union {
++ struct {
++ u32 gpio;
++ u32 direction;
++ u32 polarity;
++ u32 term_en;
++ u32 term_pull_up;
++ u32 state;
++ } req;
++ } body;
++ u32 end_tag;
++};
++
++struct gpio_get_config {
++ struct bcm2835_mbox_hdr hdr;
++ struct bcm2835_mbox_tag_hdr tag_hdr;
++ union {
++ struct {
++ u32 gpio;
++ u32 direction;
++ u32 polarity;
++ u32 term_en;
++ u32 term_pull_up;
++ } req;
++ } body;
++ u32 end_tag;
++};
++
++struct gpio_get_set_state {
++ struct bcm2835_mbox_hdr hdr;
++ struct bcm2835_mbox_tag_hdr tag_hdr;
++ union {
++ struct {
++ u32 gpio;
++ u32 state;
++ } req;
++ } body;
++ u32 end_tag;
++};
++
++static inline struct rpi_exp_gpio *to_rpi_gpio(struct gpio_chip *gc)
++{
++ return container_of(gc, struct rpi_exp_gpio, gc);
++}
++
++static int rpi_exp_gpio_get_polarity(struct gpio_chip *gc, unsigned int off)
++{
++ struct rpi_exp_gpio *gpio;
++ int ret;
++ BCM2835_MBOX_STACK_ALIGN(struct gpio_get_config, get);
++ BCM2835_MBOX_INIT_HDR(get);
++ BCM2835_MBOX_INIT_TAG(get, GET_GPIO_CONFIG);
++
++ gpio = to_rpi_gpio(gc);
++
++ get->body.req.gpio = off + RPI_EXP_GPIO_BASE; /* GPIO to update */
++
++ ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &get->hdr);
++ if (ret || get->body.req.gpio != 0) {
++ dev_err(gc->dev, "Failed to get GPIO %u config (%d %x)\n",
++ off, ret, get->body.req.gpio);
++ return ret ? ret : -EIO;
++ }
++ return get->body.req.polarity;
++}
++
++static int rpi_exp_gpio_dir_in(struct gpio_chip *gc, unsigned int off)
++{
++ struct rpi_exp_gpio *gpio;
++ int ret;
++ BCM2835_MBOX_STACK_ALIGN(struct gpio_set_config, set_in);
++ BCM2835_MBOX_INIT_HDR(set_in);
++ BCM2835_MBOX_INIT_TAG(set_in, SET_GPIO_CONFIG);
++
++ gpio = to_rpi_gpio(gc);
++
++ set_in->body.req.gpio = off + RPI_EXP_GPIO_BASE; /* GPIO to update */
++ set_in->body.req.direction = RPI_EXP_GPIO_DIR_IN;
++ set_in->body.req.term_en = 0; /* termination disabled */
++ set_in->body.req.term_pull_up = 0; /* n/a as termination disabled */
++ set_in->body.req.state = 0; /* n/a as configured as an input */
++
++ ret = rpi_exp_gpio_get_polarity(gc, off);
++ if (ret < 0)
++ return ret;
++
++ set_in->body.req.polarity = ret; /* Retain existing setting */
++
++ ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &set_in->hdr);
++ if (ret || set_in->body.req.gpio != 0) {
++ dev_err(gc->dev, "Failed to set GPIO %u to input (%d %x)\n",
++ off, ret, set_in->body.req.gpio);
++ return ret ? ret : -EIO;
++ }
++
++ return 0;
++}
++
++static int rpi_exp_gpio_dir_out(struct gpio_chip *gc, unsigned int off, int val)
++{
++ struct rpi_exp_gpio *gpio;
++ int ret;
++ BCM2835_MBOX_STACK_ALIGN(struct gpio_set_config, set_out);
++ BCM2835_MBOX_INIT_HDR(set_out);
++ BCM2835_MBOX_INIT_TAG(set_out, SET_GPIO_CONFIG);
++
++ gpio = to_rpi_gpio(gc);
++
++ set_out->body.req.gpio = off + RPI_EXP_GPIO_BASE; /* GPIO to update */
++ set_out->body.req.direction = RPI_EXP_GPIO_DIR_OUT;
++ set_out->body.req.term_en = 0; /* n/a as an output */
++ set_out->body.req.term_pull_up = 0; /* n/a as termination disabled */
++ set_out->body.req.state = val; /* Output state */
++
++ ret = rpi_exp_gpio_get_polarity(gc, off);
++ if (ret < 0)
++ return ret;
++ set_out->body.req.polarity = ret; /* Retain existing setting */
++
++ ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &set_out->hdr);
++ if (ret || set_out->body.req.gpio != 0) {
++ dev_err(gc->dev, "Failed to set GPIO %u to output (%d %x)\n",
++ off, ret, set_out->body.req.gpio);
++ return ret ? ret : -EIO;
++ }
++ return 0;
++}
++
++static int rpi_exp_gpio_get_direction(struct gpio_chip *gc, unsigned int off)
++{
++ struct rpi_exp_gpio *gpio;
++ int ret;
++ BCM2835_MBOX_STACK_ALIGN(struct gpio_get_config, get);
++ BCM2835_MBOX_INIT_HDR(get);
++ BCM2835_MBOX_INIT_TAG(get, GET_GPIO_CONFIG);
++
++ gpio = to_rpi_gpio(gc);
++
++ get->body.req.gpio = off + RPI_EXP_GPIO_BASE; /* GPIO to update */
++
++ ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &get->hdr);
++ if (ret || get->body.req.gpio != 0) {
++ dev_err(gc->dev,
++ "Failed to get GPIO %u config (%d %x)\n", off, ret,
++ get->body.req.gpio);
++ return ret ? ret : -EIO;
++ }
++ if (get->body.req.direction)
++ return GPIOF_DIR_OUT;
++
++ return GPIOF_DIR_IN;
++}
++
++static int rpi_exp_gpio_get(struct gpio_chip *gc, unsigned int off)
++{
++ struct rpi_exp_gpio *gpio;
++ int ret;
++ BCM2835_MBOX_STACK_ALIGN(struct gpio_get_set_state, get);
++ BCM2835_MBOX_INIT_HDR(get);
++ BCM2835_MBOX_INIT_TAG(get, GET_GPIO_STATE);
++
++ gpio = to_rpi_gpio(gc);
++
++ get->body.req.gpio = off + RPI_EXP_GPIO_BASE; /* GPIO to update */
++ get->body.req.state = 0; /* storage for returned value */
++
++ ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &get->hdr);
++ if (ret || get->body.req.gpio != 0) {
++ dev_err(gc->dev,
++ "Failed to get GPIO %u state (%d %x)\n", off, ret,
++ get->body.req.gpio);
++ return ret ? ret : -EIO;
++ }
++ return !!get->body.req.state;
++}
++
++static void rpi_exp_gpio_set(struct gpio_chip *gc, unsigned int off, int val)
++{
++ struct rpi_exp_gpio *gpio;
++ int ret;
++ BCM2835_MBOX_STACK_ALIGN(struct gpio_get_set_state, set);
++ BCM2835_MBOX_INIT_HDR(set);
++ BCM2835_MBOX_INIT_TAG(set, SET_GPIO_STATE);
++
++ gpio = to_rpi_gpio(gc);
++
++ set->body.req.gpio = off + RPI_EXP_GPIO_BASE; /* GPIO to update */
++ set->body.req.state = val; /* Output state */
++
++ ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &set->hdr);
++ if (ret || set->body.req.gpio != 0)
++ dev_err(gc->dev,
++ "Failed to set GPIO %u state (%d %x)\n", off, ret,
++ set->body.req.gpio);
++}
++
++static struct gpio_ops rpi_exp_gpio_ops = {
++ .direction_input = rpi_exp_gpio_dir_in,
++ .direction_output = rpi_exp_gpio_dir_out,
++ .get_direction = rpi_exp_gpio_get_direction,
++ .get = rpi_exp_gpio_get,
++ .set = rpi_exp_gpio_set,
++};
++
++static int rpi_exp_gpio_probe(struct device_d *dev)
++{
++ struct rpi_exp_gpio *rpi_gpio;
++ int ret;
++
++ rpi_gpio = xzalloc(sizeof(*rpi_gpio));
++
++ rpi_gpio->gc.dev = dev;
++ rpi_gpio->gc.base = -1;
++ rpi_gpio->gc.ngpio = NUM_GPIO;
++ rpi_gpio->gc.ops = &rpi_exp_gpio_ops;
++
++ ret = gpiochip_add(&rpi_gpio->gc);
++ if (ret)
++ return ret;
++
++ dev_dbg(dev, "probed gpiochip with %d gpios, base %d\n",
++ rpi_gpio->gc.ngpio, rpi_gpio->gc.base);
++
++ return 0;
++}
++
++static __maybe_unused struct of_device_id rpi_exp_gpio_ids[] = {
++ {
++ .compatible = "raspberrypi,firmware-gpio",
++ }, {
++ /* sentinel */
++ },
++};
++
++static struct driver_d rpi_exp_gpio_driver = {
++ .name = "rpi-exp-gpio",
++ .probe = rpi_exp_gpio_probe,
++ .of_compatible = DRV_OF_COMPAT(rpi_exp_gpio_ids),
++};
++
++device_platform_driver(rpi_exp_gpio_driver);
diff --git a/configs/platform-v7a/patches/barebox-2019.12.0/0013-ARM-bcm2835-mbox-use-pr_-to-print-messages.patch b/configs/platform-v7a/patches/barebox-2019.12.0/0013-ARM-bcm2835-mbox-use-pr_-to-print-messages.patch
new file mode 100644
index 0000000..f9a34d1
--- /dev/null
+++ b/configs/platform-v7a/patches/barebox-2019.12.0/0013-ARM-bcm2835-mbox-use-pr_-to-print-messages.patch
@@ -0,0 +1,137 @@
+From: Sascha Hauer <s.hauer@pengutronix.de>
+Date: Tue, 7 Jan 2020 10:57:32 +0100
+Subject: [PATCH] ARM: bcm2835 mbox: use pr_* to print messages
+
+To give the user an idea where the messages come from.
+
+Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
+---
+ arch/arm/mach-bcm283x/mbox.c | 36 +++++++++++++++++++-----------------
+ 1 file changed, 19 insertions(+), 17 deletions(-)
+
+diff --git a/arch/arm/mach-bcm283x/mbox.c b/arch/arm/mach-bcm283x/mbox.c
+index 4405efaffd39..1b1981f7cb67 100644
+--- a/arch/arm/mach-bcm283x/mbox.c
++++ b/arch/arm/mach-bcm283x/mbox.c
+@@ -6,6 +6,8 @@
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
++#define pr_fmt(fmt) "rpi-mbox: " fmt
++
+ #include <clock.h>
+ #include <common.h>
+ #include <dma.h>
+@@ -26,7 +28,7 @@ static int bcm2835_mbox_call_raw(u32 chan, struct bcm2835_mbox_hdr *buffer,
+ u32 val;
+
+ if (send & BCM2835_CHAN_MASK) {
+- printf("mbox: Illegal mbox data 0x%08x\n", send);
++ pr_err("mbox: Illegal mbox data 0x%08x\n", send);
+ return -EINVAL;
+ }
+
+@@ -36,7 +38,7 @@ static int bcm2835_mbox_call_raw(u32 chan, struct bcm2835_mbox_hdr *buffer,
+ if (val & BCM2835_MBOX_STATUS_RD_EMPTY)
+ break;
+ if (is_timeout(starttime, TIMEOUT)) {
+- printf("mbox: Timeout draining stale responses\n");
++ pr_err("mbox: Timeout draining stale responses\n");
+ return -ETIMEDOUT;
+ }
+ val = readl(mbox_base + MAIL0_RD);
+@@ -48,14 +50,14 @@ static int bcm2835_mbox_call_raw(u32 chan, struct bcm2835_mbox_hdr *buffer,
+ if (!(val & BCM2835_MBOX_STATUS_WR_FULL))
+ break;
+ if (is_timeout(starttime, TIMEOUT)) {
+- printf("mbox: Timeout waiting for send space\n");
++ pr_err("mbox: Timeout waiting for send space\n");
+ return -ETIMEDOUT;
+ }
+ }
+
+ /* Send the request */
+ val = BCM2835_MBOX_PACK(chan, send);
+- debug("mbox: TX raw: 0x%08x\n", val);
++ pr_debug("mbox: TX raw: 0x%08x\n", val);
+ dma_sync_single_for_device((unsigned long)send, buffer->buf_size,
+ DMA_BIDIRECTIONAL);
+ writel(val, mbox_base + MAIL1_WRT);
+@@ -66,20 +68,20 @@ static int bcm2835_mbox_call_raw(u32 chan, struct bcm2835_mbox_hdr *buffer,
+ if (!(val & BCM2835_MBOX_STATUS_RD_EMPTY))
+ break;
+ if (is_timeout(starttime, TIMEOUT)) {
+- printf("mbox: Timeout waiting for response\n");
++ pr_err("mbox: Timeout waiting for response\n");
+ return -ETIMEDOUT;
+ }
+ }
+
+ /* Read the response */
+ val = readl(mbox_base + MAIL0_RD);
+- debug("mbox: RX raw: 0x%08x\n", val);
++ pr_debug("mbox: RX raw: 0x%08x\n", val);
+ dma_sync_single_for_cpu((unsigned long)send, buffer->buf_size,
+ DMA_BIDIRECTIONAL);
+
+ /* Validate the response */
+ if (BCM2835_MBOX_UNPACK_CHAN(val) != chan) {
+- printf("mbox: Response channel mismatch\n");
++ pr_err("mbox: Response channel mismatch\n");
+ return -EIO;
+ }
+
+@@ -89,7 +91,7 @@ static int bcm2835_mbox_call_raw(u32 chan, struct bcm2835_mbox_hdr *buffer,
+ }
+
+ #ifdef DEBUG
+-void dump_buf(struct bcm2835_mbox_hdr *buffer)
++static void dump_buf(struct bcm2835_mbox_hdr *buffer)
+ {
+ u32 *p;
+ u32 words;
+@@ -98,7 +100,11 @@ void dump_buf(struct bcm2835_mbox_hdr *buffer)
+ p = (u32 *)buffer;
+ words = buffer->buf_size / 4;
+ for (i = 0; i < words; i++)
+- printf(" 0x%04x: 0x%08x\n", i * 4, p[i]);
++ pr_debug(" 0x%04x: 0x%08x\n", i * 4, p[i]);
++}
++#else
++static void dump_buf(struct bcm2835_mbox_hdr *buffer)
++{
+ }
+ #endif
+
+@@ -109,27 +115,23 @@ int bcm2835_mbox_call_prop(u32 chan, struct bcm2835_mbox_hdr *buffer)
+ struct bcm2835_mbox_tag_hdr *tag;
+ int tag_index;
+
+-#ifdef DEBUG
+- printf("mbox: TX buffer\n");
++ pr_debug("mbox: TX buffer\n");
+ dump_buf(buffer);
+-#endif
+
+ ret = bcm2835_mbox_call_raw(chan, buffer, &rbuffer);
+ if (ret)
+ return ret;
+ if (rbuffer != (u32)buffer) {
+- printf("mbox: Response buffer mismatch\n");
++ pr_err("mbox: Response buffer mismatch\n");
+ return -EIO;
+ }
+
+-#ifdef DEBUG
+- printf("mbox: RX buffer\n");
++ pr_debug("mbox: RX buffer\n");
+ dump_buf(buffer);
+-#endif
+
+ /* Validate overall response status */
+ if (buffer->code != BCM2835_MBOX_RESP_CODE_SUCCESS) {
+- printf("mbox: Header response code invalid\n");
++ pr_err("mbox: Header response code invalid\n");
+ return -EIO;
+ }
+
diff --git a/configs/platform-v7a/patches/barebox-2019.12.0/0014-ARM-rpi_defconfig-Enable-raspberry-GPIO-exp-driver.patch b/configs/platform-v7a/patches/barebox-2019.12.0/0014-ARM-rpi_defconfig-Enable-raspberry-GPIO-exp-driver.patch
new file mode 100644
index 0000000..5fc5645
--- /dev/null
+++ b/configs/platform-v7a/patches/barebox-2019.12.0/0014-ARM-rpi_defconfig-Enable-raspberry-GPIO-exp-driver.patch
@@ -0,0 +1,23 @@
+From: Sascha Hauer <s.hauer@pengutronix.de>
+Date: Tue, 7 Jan 2020 10:58:37 +0100
+Subject: [PATCH] ARM: rpi_defconfig: Enable raspberry GPIO exp driver
+
+Enable the recently introduced GPIO exp driver.
+
+Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
+---
+ arch/arm/configs/rpi_defconfig | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/arch/arm/configs/rpi_defconfig b/arch/arm/configs/rpi_defconfig
+index 0ae0c42b12d7..3813b837dd35 100644
+--- a/arch/arm/configs/rpi_defconfig
++++ b/arch/arm/configs/rpi_defconfig
+@@ -72,6 +72,7 @@ CONFIG_LED_GPIO=y
+ CONFIG_LED_TRIGGERS=y
+ CONFIG_WATCHDOG=y
+ CONFIG_WATCHDOG_BCM2835=y
++CONFIG_GPIO_RASPBERRYPI_EXP=y
+ CONFIG_PINCTRL_BCM283X=y
+ CONFIG_REGULATOR=y
+ CONFIG_FS_EXT4=y
diff --git a/configs/platform-v7a/patches/barebox-2019.12.0/0015-ARM-rpi-mailbox-Use-non-interruptible-timeout.patch b/configs/platform-v7a/patches/barebox-2019.12.0/0015-ARM-rpi-mailbox-Use-non-interruptible-timeout.patch
new file mode 100644
index 0000000..88a7c53
--- /dev/null
+++ b/configs/platform-v7a/patches/barebox-2019.12.0/0015-ARM-rpi-mailbox-Use-non-interruptible-timeout.patch
@@ -0,0 +1,47 @@
+From: Sascha Hauer <s.hauer@pengutronix.de>
+Date: Wed, 8 Jan 2020 10:29:16 +0100
+Subject: [PATCH] ARM: rpi mailbox: Use non interruptible timeout
+
+This makes sure that during a mailbox transfer no other mailbox transfer
+is started. This happens on a raspberrypi3 where one GPIO on the
+firmware GPIO controller (which is controlled via mailbox) is registered
+as a heartbeat LED. With this it can happen that during a mailbox
+transfer the poller which drives the heartbeat LED is triggered in
+is_timeout() which results in corrupted transfers.
+
+Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
+---
+ arch/arm/mach-bcm283x/mbox.c | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/arch/arm/mach-bcm283x/mbox.c b/arch/arm/mach-bcm283x/mbox.c
+index 1b1981f7cb67..22abbb0ca586 100644
+--- a/arch/arm/mach-bcm283x/mbox.c
++++ b/arch/arm/mach-bcm283x/mbox.c
+@@ -37,7 +37,7 @@ static int bcm2835_mbox_call_raw(u32 chan, struct bcm2835_mbox_hdr *buffer,
+ val = readl(mbox_base + MAIL0_STA);
+ if (val & BCM2835_MBOX_STATUS_RD_EMPTY)
+ break;
+- if (is_timeout(starttime, TIMEOUT)) {
++ if (is_timeout_non_interruptible(starttime, TIMEOUT)) {
+ pr_err("mbox: Timeout draining stale responses\n");
+ return -ETIMEDOUT;
+ }
+@@ -49,7 +49,7 @@ static int bcm2835_mbox_call_raw(u32 chan, struct bcm2835_mbox_hdr *buffer,
+ val = readl(mbox_base + MAIL0_STA);
+ if (!(val & BCM2835_MBOX_STATUS_WR_FULL))
+ break;
+- if (is_timeout(starttime, TIMEOUT)) {
++ if (is_timeout_non_interruptible(starttime, TIMEOUT)) {
+ pr_err("mbox: Timeout waiting for send space\n");
+ return -ETIMEDOUT;
+ }
+@@ -67,7 +67,7 @@ static int bcm2835_mbox_call_raw(u32 chan, struct bcm2835_mbox_hdr *buffer,
+ val = readl(mbox_base + MAIL0_STA);
+ if (!(val & BCM2835_MBOX_STATUS_RD_EMPTY))
+ break;
+- if (is_timeout(starttime, TIMEOUT)) {
++ if (is_timeout_non_interruptible(starttime, TIMEOUT)) {
+ pr_err("mbox: Timeout waiting for response\n");
+ return -ETIMEDOUT;
+ }
diff --git a/configs/platform-v7a/patches/barebox-2019.12.0/0016-ARM-rpi_defconfig-Enable-more-features.patch b/configs/platform-v7a/patches/barebox-2019.12.0/0016-ARM-rpi_defconfig-Enable-more-features.patch
new file mode 100644
index 0000000..5d6c1f7
--- /dev/null
+++ b/configs/platform-v7a/patches/barebox-2019.12.0/0016-ARM-rpi_defconfig-Enable-more-features.patch
@@ -0,0 +1,109 @@
+From: Sascha Hauer <s.hauer@pengutronix.de>
+Date: Fri, 20 Dec 2019 15:03:38 +0100
+Subject: [PATCH] ARM: rpi_defconfig: Enable more features
+
+This enabled more features for the rasperrypi boards:
+
+- DWC2 USB driver
+- Networking support
+- GPIO EXP driver
+- LED support
+- more commands
+
+Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
+---
+ arch/arm/configs/rpi_defconfig | 25 +++++++++++++++++++++++--
+ 1 file changed, 23 insertions(+), 2 deletions(-)
+
+diff --git a/arch/arm/configs/rpi_defconfig b/arch/arm/configs/rpi_defconfig
+index 3813b837dd35..dd5ca7585a83 100644
+--- a/arch/arm/configs/rpi_defconfig
++++ b/arch/arm/configs/rpi_defconfig
+@@ -2,6 +2,7 @@ CONFIG_ARCH_BCM283X=y
+ CONFIG_MACH_RPI=y
+ CONFIG_MACH_RPI2=y
+ CONFIG_MACH_RPI3=y
++CONFIG_MACH_RPI_CM3=y
+ CONFIG_AEABI=y
+ CONFIG_ARM_OPTIMZED_STRING_FUNCTIONS=y
+ CONFIG_ARM_UNWIND=y
+@@ -20,11 +21,15 @@ CONFIG_BOOTM_VERBOSE=y
+ CONFIG_BOOTM_INITRD=y
+ CONFIG_BOOTM_OFTREE=y
+ CONFIG_BLSPEC=y
++CONFIG_CONSOLE_ALLOW_COLOR=y
+ CONFIG_DEFAULT_ENVIRONMENT_GENERIC_NEW=y
+ CONFIG_DEFAULT_ENVIRONMENT_PATH="arch/arm/boards/raspberry-pi/env"
++CONFIG_CMD_DMESG=y
+ CONFIG_LONGHELP=y
+ CONFIG_CMD_IOMEM=y
++CONFIG_CMD_IMD=y
+ CONFIG_CMD_MEMINFO=y
++CONFIG_CMD_REGULATOR=y
+ CONFIG_CMD_GO=y
+ CONFIG_CMD_LOADB=y
+ CONFIG_CMD_LOADY=y
+@@ -32,17 +37,25 @@ CONFIG_CMD_RESET=y
+ CONFIG_CMD_UIMAGE=y
+ CONFIG_CMD_PARTITION=y
+ CONFIG_CMD_EXPORT=y
++CONFIG_CMD_DEFAULTENV=y
++CONFIG_CMD_LOADENV=y
+ CONFIG_CMD_PRINTENV=y
+ CONFIG_CMD_MAGICVAR=y
+ CONFIG_CMD_MAGICVAR_HELP=y
+ CONFIG_CMD_SAVEENV=y
++CONFIG_CMD_CMP=y
+ CONFIG_CMD_FILETYPE=y
+ CONFIG_CMD_LN=y
+ CONFIG_CMD_MD5SUM=y
++CONFIG_CMD_SHA1SUM=y
++CONFIG_CMD_SHA256SUM=y
+ CONFIG_CMD_UNCOMPRESS=y
+ CONFIG_CMD_LET=y
+ CONFIG_CMD_MSLEEP=y
+ CONFIG_CMD_SLEEP=y
++CONFIG_CMD_DHCP=y
++CONFIG_CMD_MIITOOL=y
++CONFIG_CMD_PING=y
+ CONFIG_CMD_ECHO_E=y
+ CONFIG_CMD_EDIT=y
+ CONFIG_CMD_LOGIN=y
+@@ -57,18 +70,26 @@ CONFIG_CMD_MM=y
+ CONFIG_CMD_CLK=y
+ CONFIG_CMD_DETECT=y
+ CONFIG_CMD_GPIO=y
++CONFIG_CMD_LED=y
++CONFIG_CMD_LED_TRIGGER=y
+ CONFIG_CMD_WD=y
+ CONFIG_CMD_OF_NODE=y
+ CONFIG_CMD_OF_PROPERTY=y
+ CONFIG_CMD_OFTREE=y
+ CONFIG_CMD_TIME=y
++CONFIG_NET=y
+ CONFIG_SERIAL_AMBA_PL011=y
+ CONFIG_DRIVER_SERIAL_NS16550=y
++CONFIG_NET_USB=y
++CONFIG_NET_USB_SMSC95XX=y
++CONFIG_USB_HOST=y
++CONFIG_USB_DWC2_HOST=y
+ CONFIG_MCI=y
+ CONFIG_MCI_BCM283X=y
+ CONFIG_MCI_BCM283X_SDHOST=y
+ CONFIG_LED=y
+ CONFIG_LED_GPIO=y
++CONFIG_LED_GPIO_OF=y
+ CONFIG_LED_TRIGGERS=y
+ CONFIG_WATCHDOG=y
+ CONFIG_WATCHDOG_BCM2835=y
+@@ -76,8 +97,8 @@ CONFIG_GPIO_RASPBERRYPI_EXP=y
+ CONFIG_PINCTRL_BCM283X=y
+ CONFIG_REGULATOR=y
+ CONFIG_FS_EXT4=y
++CONFIG_FS_TFTP=y
++CONFIG_FS_NFS=y
+ CONFIG_FS_FAT=y
+ CONFIG_FS_FAT_WRITE=y
+ CONFIG_FS_FAT_LFN=y
+-CONFIG_DIGEST_SHA1_GENERIC=y
+-CONFIG_DIGEST_SHA256_GENERIC=y
diff --git a/configs/platform-v7a/patches/barebox-2019.12.0/0101-Release-2019.12.0-customers-pengutronix-distrokit-v7.patch b/configs/platform-v7a/patches/barebox-2019.12.0/0101-Release-2019.12.0-customers-pengutronix-distrokit-v7.patch
new file mode 100644
index 0000000..94e09d0
--- /dev/null
+++ b/configs/platform-v7a/patches/barebox-2019.12.0/0101-Release-2019.12.0-customers-pengutronix-distrokit-v7.patch
@@ -0,0 +1,22 @@
+From: Sascha Hauer <s.hauer@pengutronix.de>
+Date: Wed, 8 Jan 2020 11:15:45 +0100
+Subject: [PATCH] Release
+ 2019.12.0/customers/pengutronix/distrokit-v7a/20200108-1
+
+---
+ Makefile | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/Makefile b/Makefile
+index 600ca36a311c..96890b4c13f6 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,7 +1,7 @@
+ VERSION = 2019
+ PATCHLEVEL = 12
+ SUBLEVEL = 0
+-EXTRAVERSION =
++EXTRAVERSION =-20200108-1
+ NAME = None
+
+ # *DOCUMENTATION*
diff --git a/configs/platform-v7a/patches/barebox-2019.12.0/series b/configs/platform-v7a/patches/barebox-2019.12.0/series
new file mode 100644
index 0000000..f5bb5c5
--- /dev/null
+++ b/configs/platform-v7a/patches/barebox-2019.12.0/series
@@ -0,0 +1,26 @@
+# umpf-base: v2019.12.0
+# umpf-name: 2019.12.0/customers/pengutronix/distrokit-v7a
+# umpf-version: 2019.12.0/customers/pengutronix/distrokit-v7a/20200108-1
+# umpf-topic: v2019.12.0/topic/raspberrypi
+# umpf-hashinfo: 3315e55b033d80c15865e0b936894ed773ce391c
+# umpf-topic-range: 48b57af0ab888bf88607d0e55ad3e79d13cc0a31..adbebd694167ede6aeb2a298918b24040c0ded97
+0001-ARM-rpi-Do-not-warn-when-firmware-doesn-t-pass-a-dtb.patch
+0002-usb-Make-timeout-unit-clear.patch
+0003-of-Add-of_bus_n_xxx_cells.patch
+0004-device-Introduce-dma_offset.patch
+0005-of-Read-dma_offset-from-device-tree.patch
+0006-usb-Add-usbroothubdes.h.patch
+0007-regulator-add-function-to-get-regulator-by-its-name.patch
+0008-rpi-Enable-USB-Power-domain-during-startup.patch
+0009-usb-Forward-error-code-from-usb_set_configuration.patch
+0010-usb-Add-dwc2-host-driver.patch
+0011-ARM-bcm2835-mbox-Remove-response-valid-check.patch
+0012-gpio-Add-raspberrypi-exp-gpio-driver.patch
+0013-ARM-bcm2835-mbox-use-pr_-to-print-messages.patch
+0014-ARM-rpi_defconfig-Enable-raspberry-GPIO-exp-driver.patch
+0015-ARM-rpi-mailbox-Use-non-interruptible-timeout.patch
+0016-ARM-rpi_defconfig-Enable-more-features.patch
+# umpf-release: 2019.12.0/customers/pengutronix/distrokit-v7a/20200108-1
+# umpf-topic-range: adbebd694167ede6aeb2a298918b24040c0ded97..0cc90c348816c16cded33c2ed48e918c9f69d8cd
+0101-Release-2019.12.0-customers-pengutronix-distrokit-v7.patch
+# umpf-end