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-rw-r--r--arch/arm/boards/rockchip-rk3568-evb/board.c7
-rw-r--r--arch/arm/dts/rk3568-evb1-v10.dts22
-rw-r--r--arch/arm/include/asm/barebox-arm-head.h2
-rw-r--r--arch/arm/mach-rockchip/Kconfig5
-rw-r--r--arch/arm/mach-rockchip/Makefile1
-rw-r--r--arch/arm/mach-rockchip/atf.c53
-rw-r--r--arch/arm/mach-rockchip/bbu.c141
-rw-r--r--arch/arm/mach-rockchip/include/mach/bbu.h9
-rw-r--r--arch/arm/mach-rockchip/include/mach/rockchip.h2
-rw-r--r--arch/arm/mach-rockchip/rk3568.c16
-rw-r--r--arch/arm/mach-rockchip/rockchip.c15
-rw-r--r--common/partitions.c27
-rw-r--r--drivers/clk/clk.c8
-rw-r--r--drivers/of/platform.c5
-rw-r--r--drivers/phy/rockchip/phy-rockchip-inno-usb2.c12
-rw-r--r--drivers/pinctrl/pinctrl-rockchip.c3
-rw-r--r--drivers/usb/dwc3/core.c11
-rw-r--r--drivers/usb/dwc3/core.h2
-rw-r--r--include/driver.h1
-rw-r--r--include/of.h6
20 files changed, 281 insertions, 67 deletions
diff --git a/arch/arm/boards/rockchip-rk3568-evb/board.c b/arch/arm/boards/rockchip-rk3568-evb/board.c
index 9cd84d7fb9..09385bea29 100644
--- a/arch/arm/boards/rockchip-rk3568-evb/board.c
+++ b/arch/arm/boards/rockchip-rk3568-evb/board.c
@@ -10,6 +10,7 @@
#include <environment.h>
#include <globalvar.h>
#include <magicvar.h>
+#include <deep-probe.h>
static bool machine_is_rk3568_evb = false;
@@ -27,8 +28,8 @@ static int rk3568_evb_probe(struct device_d *dev)
else
of_device_enable_path("/chosen/environment-emmc");
- rk3568_bbu_mmc_register("emmc", BBU_HANDLER_FLAG_DEFAULT, "/dev/emmc.barebox");
- rk3568_bbu_mmc_register("sd", 0, "/dev/sd.barebox");
+ rk3568_bbu_mmc_register("emmc", BBU_HANDLER_FLAG_DEFAULT, "/dev/emmc");
+ rk3568_bbu_mmc_register("sd", 0, "/dev/sd");
return 0;
}
@@ -45,6 +46,8 @@ static struct driver_d rk3568_evb_board_driver = {
};
coredevice_platform_driver(rk3568_evb_board_driver);
+BAREBOX_DEEP_PROBE_ENABLE(rk3568_evb_of_match);
+
static int rk3568_evb_detect_hwid(void)
{
int ret;
diff --git a/arch/arm/dts/rk3568-evb1-v10.dts b/arch/arm/dts/rk3568-evb1-v10.dts
index bd583015e8..6f1eebc619 100644
--- a/arch/arm/dts/rk3568-evb1-v10.dts
+++ b/arch/arm/dts/rk3568-evb1-v10.dts
@@ -472,17 +472,12 @@
partitions {
compatible = "fixed-partitions";
- #address-cells = <1>;
- #size-cells = <1>;
-
- partition@8000 {
- label = "barebox";
- reg = <0x8000 0x400000>;
- };
+ #address-cells = <2>;
+ #size-cells = <2>;
environment_emmc: partition@408000 {
label = "barebox-environment";
- reg = <0x408000 0x8000>;
+ reg = <0x0 0x408000 0x0 0x8000>;
};
};
};
@@ -503,17 +498,12 @@
partitions {
compatible = "fixed-partitions";
- #address-cells = <1>;
- #size-cells = <1>;
-
- partition@8000 {
- label = "barebox";
- reg = <0x8000 0x400000>;
- };
+ #address-cells = <2>;
+ #size-cells = <2>;
environment_sd: partition@408000 {
label = "barebox-environment";
- reg = <0x408000 0x8000>;
+ reg = <0x0 0x408000 0x0 0x8000>;
};
};
};
diff --git a/arch/arm/include/asm/barebox-arm-head.h b/arch/arm/include/asm/barebox-arm-head.h
index 8409a77d2e..187d12c9fc 100644
--- a/arch/arm/include/asm/barebox-arm-head.h
+++ b/arch/arm/include/asm/barebox-arm-head.h
@@ -44,6 +44,8 @@ static inline void __barebox_arm_head(void)
"1: b 1b\n"
#endif
#else
+ /* two instruction long function prologue */
+ /* only use if stack is initialized! */
"b 2f\n"
"nop\n"
"nop\n"
diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
index b2376c18d0..1ad7ccedf6 100644
--- a/arch/arm/mach-rockchip/Kconfig
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -50,8 +50,11 @@ config MACH_RK3568_EVB
help
Say Y here if you are using a RK3568 EVB
+comment "select board features:"
+
config ARCH_RK3568_OPTEE
- bool "Build OP-TEE binary into barebox"
+ bool "Build rk3568 OP-TEE binary into barebox"
+ depends on ARCH_RK3568
help
With this option enabled the RK3568 OP-TEE binary is compiled
into barebox and started along with the BL31 trusted firmware.
diff --git a/arch/arm/mach-rockchip/Makefile b/arch/arm/mach-rockchip/Makefile
index ebaa3a5450..66bcdba2eb 100644
--- a/arch/arm/mach-rockchip/Makefile
+++ b/arch/arm/mach-rockchip/Makefile
@@ -4,3 +4,4 @@ obj-$(CONFIG_ARCH_RK3188) += rk3188.o
obj-$(CONFIG_ARCH_RK3288) += rk3288.o
obj-pbl-$(CONFIG_ARCH_RK3568) += rk3568.o
obj-$(CONFIG_ARCH_RK3568) += bootm.o
+obj-$(CONFIG_BAREBOX_UPDATE) += bbu.o
diff --git a/arch/arm/mach-rockchip/atf.c b/arch/arm/mach-rockchip/atf.c
index 3c4c9d1c8a..de22784489 100644
--- a/arch/arm/mach-rockchip/atf.c
+++ b/arch/arm/mach-rockchip/atf.c
@@ -33,30 +33,35 @@ static unsigned long load_elf64_image_phdr(const void *elf)
return ehdr->e_entry;
}
-void rk3568_atf_load_bl31(void *fdt)
-{
- const void *bl31_elf, *optee;
- unsigned long bl31;
- size_t bl31_elf_size, optee_size;
- uintptr_t optee_load_address = 0;
-
- get_builtin_firmware(rk3568_bl31_bin, &bl31_elf, &bl31_elf_size);
-
- bl31 = load_elf64_image_phdr(bl31_elf);
-
- if (IS_ENABLED(CONFIG_ARCH_RK3568_OPTEE)) {
- optee_load_address = RK3568_OPTEE_LOAD_ADDRESS;
+#define rockchip_atf_load_bl31(SOC, atf_bin, tee_bin, fdt) do { \
+ const void *bl31_elf, *optee; \
+ unsigned long bl31; \
+ size_t bl31_elf_size, optee_size; \
+ uintptr_t optee_load_address = 0; \
+ \
+ get_builtin_firmware(atf_bin, &bl31_elf, &bl31_elf_size); \
+ \
+ bl31 = load_elf64_image_phdr(bl31_elf); \
+ \
+ if (IS_ENABLED(CONFIG_ARCH_##SOC##_OPTEE)) { \
+ optee_load_address = SOC##_OPTEE_LOAD_ADDRESS; \
+ \
+ get_builtin_firmware(tee_bin, &optee, &optee_size); \
+ \
+ memcpy((void *)optee_load_address, optee, optee_size); \
+ } \
+ \
+ /* Setup an initial stack for EL2 */ \
+ asm volatile("msr sp_el2, %0" : : \
+ "r" (SOC##_BAREBOX_LOAD_ADDRESS - 16) : \
+ "cc"); \
+ \
+ bl31_entry(bl31, optee_load_address, \
+ SOC##_BAREBOX_LOAD_ADDRESS, (uintptr_t)fdt); \
+} while (0) \
- get_builtin_firmware(rk3568_op_tee_bin, &optee, &optee_size);
- memcpy((void *)optee_load_address, optee, optee_size);
- }
-
- /* Setup an initial stack for EL2 */
- asm volatile("msr sp_el2, %0" : :
- "r" (RK3568_BAREBOX_LOAD_ADDRESS - 16) :
- "cc");
-
- bl31_entry(bl31, optee_load_address,
- RK3568_BAREBOX_LOAD_ADDRESS, (uintptr_t)fdt);
+void rk3568_atf_load_bl31(void *fdt)
+{
+ rockchip_atf_load_bl31(RK3568, rk3568_bl31_bin, rk3568_op_tee_bin, fdt);
}
diff --git a/arch/arm/mach-rockchip/bbu.c b/arch/arm/mach-rockchip/bbu.c
new file mode 100644
index 0000000000..71bbac27e8
--- /dev/null
+++ b/arch/arm/mach-rockchip/bbu.c
@@ -0,0 +1,141 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+#include <common.h>
+#include <malloc.h>
+#include <bbu.h>
+#include <filetype.h>
+#include <errno.h>
+#include <fs.h>
+#include <fcntl.h>
+#include <linux/sizes.h>
+#include <linux/stat.h>
+#include <ioctl.h>
+#include <environment.h>
+#include <mach/bbu.h>
+#include <libfile.h>
+#include <linux/bitfield.h>
+#include <mach/rk3568-regs.h>
+
+/* The MaskROM looks for images on these locations: */
+#define IMG_OFFSET_0 (0 * SZ_1K + SZ_32K)
+#define IMG_OFFSET_1 (512 * SZ_1K + SZ_32K)
+#define IMG_OFFSET_2 (1024 * SZ_1K + SZ_32K)
+#define IMG_OFFSET_3 (1536 * SZ_1K + SZ_32K)
+#define IMG_OFFSET_4 (2048 * SZ_1K + SZ_32K)
+
+#define RK3568_IRAM_ACTIVE_BOOT_SLOT GENMASK(12, 10)
+
+static int rk3568_get_active_slot(void)
+{
+ return FIELD_GET(RK3568_IRAM_ACTIVE_BOOT_SLOT,
+ readl(RK3568_IRAM_BASE + 0x14));
+}
+
+/*
+ * The strategy here is:
+ * The MaskROM iterates over the above five locations until it finds a valid
+ * boot image. The images are protected with sha sums, so any change to an
+ * image on disk is invalidating it. We first check if we have enough space to
+ * write two copies of barebox. To make it simple we only use IMG_OFFSET_0 and
+ * IMG_OFFSET_4 which leaves the maximum size for a single image. When there's
+ * not enough free space on the beginning of the disk we only write a single
+ * image. When we have enough space for two images we first write the inactive one
+ * (leaving the active one intact). Afterwards we write the active one which
+ * leaves the previously written inactive image as a fallback in case writing the
+ * first one gets interrupted.
+ */
+static int rk3568_bbu_mmc_handler(struct bbu_handler *handler,
+ struct bbu_data *data)
+{
+ enum filetype filetype;
+ int ret, fd, wr0, wr1;
+ loff_t space;
+ const char *cdevname;
+
+ filetype = file_detect_type(data->image, data->len);
+ if (filetype != filetype_rockchip_rkns_image) {
+ if (!bbu_force(data, "incorrect image type. Expected: %s, got %s",
+ file_type_to_string(filetype_rockchip_rkns_image),
+ file_type_to_string(filetype)))
+ return -EINVAL;
+ }
+
+ cdevname = devpath_to_name(data->devicefile);
+
+ device_detect_by_name(cdevname);
+
+ ret = bbu_confirm(data);
+ if (ret)
+ return ret;
+
+ space = cdev_unallocated_space(cdev_by_name(cdevname));
+
+ if (space < IMG_OFFSET_0 + data->len) {
+ pr_err("Unallocated space on %s is too small for one image\n",
+ data->devicefile);
+ return -ENOSPC;
+ }
+
+ fd = open(data->devicefile, O_WRONLY);
+ if (fd < 0)
+ return fd;
+
+ if (space >= IMG_OFFSET_4 + data->len) {
+ int slot = rk3568_get_active_slot();
+
+ pr_info("Unallocated space is enough for two copies, doing failsafe update\n");
+
+ if (slot == 0) {
+ wr0 = IMG_OFFSET_4;
+ wr1 = IMG_OFFSET_0;
+ } else {
+ wr0 = IMG_OFFSET_0;
+ wr1 = IMG_OFFSET_4;
+ }
+ } else {
+ wr0 = IMG_OFFSET_0;
+ wr1 = 0;
+ }
+
+ ret = pwrite_full(fd, data->image, data->len, wr0);
+ if (ret < 0) {
+ pr_err("writing to %s failed with %s\n", data->devicefile,
+ strerror(-ret));
+ goto err_close;
+ }
+
+ if (wr1) {
+ ret = pwrite_full(fd, data->image, data->len, wr1);
+ if (ret < 0) {
+ pr_err("writing to %s failed with %s\n", data->devicefile,
+ strerror(-ret));
+ goto err_close;
+ }
+ }
+
+ ret = 0;
+
+err_close:
+ close(fd);
+
+ return ret;
+}
+
+int rk3568_bbu_mmc_register(const char *name, unsigned long flags,
+ const char *devicefile)
+{
+ struct bbu_handler *handler;
+ int ret;
+
+ handler = xzalloc(sizeof(*handler));
+
+ handler->flags = flags;
+ handler->devicefile = devicefile;
+ handler->name = name;
+ handler->handler = rk3568_bbu_mmc_handler;
+
+ ret = bbu_register_handler(handler);
+ if (ret)
+ free(handler);
+
+ return ret;
+}
diff --git a/arch/arm/mach-rockchip/include/mach/bbu.h b/arch/arm/mach-rockchip/include/mach/bbu.h
index e61e0615e2..7fb08a0a9e 100644
--- a/arch/arm/mach-rockchip/include/mach/bbu.h
+++ b/arch/arm/mach-rockchip/include/mach/bbu.h
@@ -3,12 +3,15 @@
#include <bbu.h>
+#ifdef CONFIG_BAREBOX_UPDATE
+int rk3568_bbu_mmc_register(const char *name, unsigned long flags,
+ const char *devicefile);
+#else
static inline int rk3568_bbu_mmc_register(const char *name, unsigned long flags,
const char *devicefile)
{
- return bbu_register_std_file_update(name, flags,
- devicefile, filetype_rockchip_rkns_image);
-
+ return -ENOSYS;
}
+#endif
# endif /* __MACH_ROCKCHIP_BBU_H */
diff --git a/arch/arm/mach-rockchip/include/mach/rockchip.h b/arch/arm/mach-rockchip/include/mach/rockchip.h
index 722b73d6f8..269d113bc3 100644
--- a/arch/arm/mach-rockchip/include/mach/rockchip.h
+++ b/arch/arm/mach-rockchip/include/mach/rockchip.h
@@ -28,6 +28,6 @@ static inline int rk3568_init(void)
}
#endif
-int rk3568_lowlevel_init(void);
+void rk3568_lowlevel_init(void);
#endif /* __MACH_ROCKCHIP_H */
diff --git a/arch/arm/mach-rockchip/rk3568.c b/arch/arm/mach-rockchip/rk3568.c
index fcf3cb7053..234c6d22d1 100644
--- a/arch/arm/mach-rockchip/rk3568.c
+++ b/arch/arm/mach-rockchip/rk3568.c
@@ -90,7 +90,7 @@ static void qos_priority_init(void)
writel(0x303, EBC_PRIORITY_REG);
}
-int rk3568_lowlevel_init(void)
+void rk3568_lowlevel_init(void)
{
/*
* When perform idle operation, corresponding clock can
@@ -135,8 +135,6 @@ int rk3568_lowlevel_init(void)
writel(0x01ff01d1, USBPHY_U2_GRF_CON1);
qos_priority_init();
-
- return 0;
}
struct rk_bootsource {
@@ -145,12 +143,12 @@ struct rk_bootsource {
};
static struct rk_bootsource bootdev_map[] = {
- { .src = BOOTSOURCE_UNKNOWN, .instance = 0 },
- { .src = BOOTSOURCE_NAND, .instance = 0 },
- { .src = BOOTSOURCE_MMC, .instance = 0 },
- { .src = BOOTSOURCE_SPI_NOR, .instance = 0 },
- { .src = BOOTSOURCE_SPI_NAND, .instance = 0 },
- { .src = BOOTSOURCE_MMC, .instance = 1 },
+ [0x1] = { .src = BOOTSOURCE_NAND, .instance = 0 },
+ [0x2] = { .src = BOOTSOURCE_MMC, .instance = 0 },
+ [0x3] = { .src = BOOTSOURCE_SPI_NOR, .instance = 0 },
+ [0x4] = { .src = BOOTSOURCE_SPI_NAND, .instance = 0 },
+ [0x5] = { .src = BOOTSOURCE_MMC, .instance = 1 },
+ [0xa] = { .src = BOOTSOURCE_USB, .instance = 0 },
};
static enum bootsource rk3568_bootsource(void)
diff --git a/arch/arm/mach-rockchip/rockchip.c b/arch/arm/mach-rockchip/rockchip.c
index f0b2484c68..c185b0cc2b 100644
--- a/arch/arm/mach-rockchip/rockchip.c
+++ b/arch/arm/mach-rockchip/rockchip.c
@@ -6,14 +6,13 @@
static int rockchip_init(void)
{
if (of_machine_is_compatible("rockchip,rk3188"))
- rk3188_init();
- else if (of_machine_is_compatible("rockchip,rk3288"))
- rk3288_init();
- else if (of_machine_is_compatible("rockchip,rk3568"))
- rk3568_init();
- else
- pr_err("Unknown rockchip SoC\n");
+ return rk3188_init();
+ if (of_machine_is_compatible("rockchip,rk3288"))
+ return rk3288_init();
+ if (of_machine_is_compatible("rockchip,rk3568"))
+ return rk3568_init();
- return 0;
+ pr_err("Unknown rockchip SoC\n");
+ return -ENODEV;
}
postcore_initcall(rockchip_init);
diff --git a/common/partitions.c b/common/partitions.c
index d80878e065..b579559672 100644
--- a/common/partitions.c
+++ b/common/partitions.c
@@ -156,3 +156,30 @@ int partition_parser_register(struct partition_parser *p)
return 0;
}
+
+/**
+ * cdev_unallocated_space - return unallocated space
+ * cdev: The cdev
+ *
+ * This function returns the space that is not allocated by any partition
+ * at the start of a device.
+ *
+ * Return: The unallocated space at the start of the device in bytes
+ */
+loff_t cdev_unallocated_space(struct cdev *cdev)
+{
+ struct cdev *partcdev;
+ loff_t start;
+
+ if (!cdev)
+ return 0;
+
+ start = cdev->size;
+
+ list_for_each_entry(partcdev, &cdev->partitions, partition_entry) {
+ if (partcdev->offset < start)
+ start = partcdev->offset;
+ }
+
+ return start;
+}
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index fff1e21144..189c9c62df 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -845,9 +845,15 @@ int of_clk_init(struct device_node *root, const struct of_device_id *matches)
struct device_node *np = clk_provider->np;
if (force || parent_ready(np)) {
+ struct device_d *dev;
of_pinctrl_select_state_default(np);
- clk_provider->clk_init_cb(np);
+
+ dev = of_device_create_on_demand(np);
+
+ if (clk_provider->clk_init_cb(np) == 0 && dev)
+ of_platform_device_dummy_drv(dev);
+
of_clk_set_defaults(np, true);
list_del(&clk_provider->node);
diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index 92b6caef5a..ce7a2a0df5 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -373,11 +373,14 @@ int of_platform_populate(struct device_node *root,
}
EXPORT_SYMBOL_GPL(of_platform_populate);
-static struct device_d *of_device_create_on_demand(struct device_node *np)
+struct device_d *of_device_create_on_demand(struct device_node *np)
{
struct device_node *parent;
struct device_d *parent_dev, *dev;
+ if (!deep_probe_is_supported())
+ return NULL;
+
parent = of_get_parent(np);
if (!parent)
return NULL;
diff --git a/drivers/phy/rockchip/phy-rockchip-inno-usb2.c b/drivers/phy/rockchip/phy-rockchip-inno-usb2.c
index bb1a5c747e..6b9d54f344 100644
--- a/drivers/phy/rockchip/phy-rockchip-inno-usb2.c
+++ b/drivers/phy/rockchip/phy-rockchip-inno-usb2.c
@@ -264,6 +264,9 @@ static struct phy *rockchip_usb2phy_of_xlate(struct device_d *dev,
int port;
for (port = 0; port < 2; port++) {
+ if (!rphy->phys[port].phy)
+ continue;
+
if (phynode == rphy->phys[port].phy->dev.device_node) {
p = &rphy->phys[port];
return p->phy;
@@ -423,6 +426,7 @@ static int rockchip_usb2phy_probe(struct device_d *dev)
for_each_child_of_node(np, child) {
struct rockchip_usb2phy_phy *p;
struct phy *phy;
+ struct device_d *phydev;
if (!strcmp(child->name, "host-port")) {
port = USB2PHY_PORT_OTG;
@@ -436,7 +440,13 @@ static int rockchip_usb2phy_probe(struct device_d *dev)
if (rphy->phys[port].phy)
return -EINVAL;
- phy = phy_create(dev, child, &rockchip_usb2phy_ops);
+ phydev = of_platform_device_create(child, dev);
+ if (!phydev)
+ continue;
+
+ of_platform_device_dummy_drv(phydev);
+
+ phy = phy_create(phydev, child, &rockchip_usb2phy_ops);
if (IS_ERR(phy)) {
ret = PTR_ERR(phy);
if (ret != -EPROBE_DEFER)
diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index 9b832c97d6..e73e378490 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -342,6 +342,9 @@ static int rockchip_gpio_probe(struct device_d *dev)
int ret, bankno;
bankno = of_alias_get_id(dev->device_node, "gpio");
+ if (bankno < 0)
+ return bankno;
+
bank = &ctrl->pin_banks[bankno];
gpio = &bank->bgpio_chip.gc;
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 2a4d1c066d..fb3cae4de9 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -14,6 +14,7 @@
#include <dma.h>
#include <driver.h>
#include <init.h>
+#include <linux/reset.h>
#include "gadget.h"
#include "core.h"
@@ -1123,6 +1124,16 @@ static int dwc3_probe(struct device_d *dev)
if (ret)
return ret;
+ dwc->reset = reset_control_get(dev, NULL);
+ if (IS_ERR(dwc->reset)) {
+ dev_err(dev, "Failed to get reset control: %pe\n", dwc->reset);
+ return PTR_ERR(dwc->reset);
+ }
+
+ reset_control_assert(dwc->reset);
+ mdelay(1);
+ reset_control_deassert(dwc->reset);
+
dwc3_coresoft_reset(dwc);
dwc3_cache_hwparams(dwc);
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index f2f7a311d1..94cc594920 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -1003,6 +1003,8 @@ struct dwc3 {
struct clk_bulk_data *clks;
int num_clks;
+ struct reset_control *reset;
+
struct phy *usb2_generic_phy;
struct phy *usb3_generic_phy;
diff --git a/include/driver.h b/include/driver.h
index c7f5903fce..4f6d40e17c 100644
--- a/include/driver.h
+++ b/include/driver.h
@@ -494,6 +494,7 @@ ssize_t cdev_read(struct cdev *cdev, void *buf, size_t count, loff_t offset, ulo
ssize_t cdev_write(struct cdev *cdev, const void *buf, size_t count, loff_t offset, ulong flags);
int cdev_ioctl(struct cdev *cdev, int cmd, void *buf);
int cdev_erase(struct cdev *cdev, loff_t count, loff_t offset);
+loff_t cdev_unallocated_space(struct cdev *cdev);
#define DEVFS_PARTITION_FIXED (1U << 0)
#define DEVFS_PARTITION_READONLY (1U << 1)
diff --git a/include/of.h b/include/of.h
index f9c2b283de..1b7392cdb3 100644
--- a/include/of.h
+++ b/include/of.h
@@ -279,6 +279,7 @@ extern struct device_d *of_device_enable_and_register_by_name(const char *name);
extern struct device_d *of_device_enable_and_register_by_alias(
const char *alias);
+extern struct device_d *of_device_create_on_demand(struct device_node *np);
extern int of_device_ensure_probed(struct device_node *np);
extern int of_device_ensure_probed_by_alias(const char *alias);
extern int of_devices_ensure_probed_by_property(const char *property_name);
@@ -372,6 +373,11 @@ static inline void of_platform_device_dummy_drv(struct device_d *dev)
{
}
+static inline struct device_d *of_device_create_on_demand(struct device_node *np)
+{
+ return NULL;
+}
+
static inline int of_device_ensure_probed(struct device_node *np)
{
return 0;
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-26 13:36:11 +0000