| Commit message (Collapse) | Author | Age | Files | Lines |
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For the new "fixed-partitions" binding we ignore the partitions
subnode for creating reproducible names and set node to its parent.
To get the number of address cells we must call of_n_addr_cells()
before setting node to its parent though, not afterwards. With the
current behaviour we always get OF_ROOT_NODE_ADDR_CELLS_DEFAULT (=1).
This happens to work then the partitioned device is less than 4GiB
in size. On bigger devices #address-cells = <2> is chosen by the
mtd partition fixup code.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reported-by: Bastian Krause <bst@pengutronix.de>
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With commit 3354adee3920 ("mci: imx-esdhc: Add bigendian register access
support") and commit 15b64fd520c2 ("mci: imx-esdhc: Add layerscape support")
two ESDHC_FLAGs got assigned to already existing values. This conflict made
the imx6sl usdhc appear to be big endian.
Resolve this conflict by assign the new flags to the next vacant values.
Signed-off-by: Alexander Kurz <akurz@blala.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Initialize is_be, otherwise the value of is_be is undefined.
So it is possible that the i.MX8 will not boot because the bigendian
functions are used.
Signed-off-by: Christian Hemp <c.hemp@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Our cyc_crc16() function is the same function as crc_itu_t() in the
Linux kernel. Import and use crc_itu_t() from the Kernel for
consistency.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The driver was missing a call to mci_of_parse() which fills in properties such
as "bus-width", "no-sd" into the mci_host struct.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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pinctrl driver needs to be initialized before mci driver on Raspberry Pi.
Otherwise the pinctrl device tree properties in the mci node are ignored.
pinctrl is initialized by coredevice_initcall(), so moving mci-bcm2835 to
device_initcall() ensures that it is initialized later.
There is no reason for mci-bcm2835 to use coredevice_initcall(). Other mci
drivers already use device_initcall().
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This adds hooks for the pin controller driver to the existing
bcm2835_set_function().
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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BCM2835 watchdog timeout can be set to maximum 15 seconds (0xffffff >> 16).
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Import a very abridged NVME implementation from Linux kernel in order
to be able to access NVME storage attached via PCIe.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Replace all of the generic PCI boilerplate with device_pci_driver().
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This function may be called repeatedly while establishing the link,
so printing a message each time a working link is found can add quite
a bit of noise. Tune those messages down to the debug level.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Drop dummy_probe() due to lack of users in the tree.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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make it properly represented by menuconfig
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Port of Linux patch https://patchwork.kernel.org/patch/10766235/
The HW can swap the USB differential-pair (D+/D-) for each port
separately. So the USB signals can be re-aligned with a misplaced
USB connector on the PCB.
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Reviewed-by: Richard Leitner <richard.leitner@skidata.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Port Microchip USB251x USB hub driver from Linux. Needed by ZII's
i.MX8MQ boards.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Import DWC3 USB controller driver from Linux. This is a bare minimum
port of the code needed to support USB host functionality on
i.MX8MQ. No other use-case is explicitly supported.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Import a subset of clk_bulk API from Linux to support porting kernel
code that uses it.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Regardless of the value of CONFIG_HAVE_CLK, clk_put() implementation
is always a no-op. Move the definition to linux/clk.h and drop the
rest of the code implementing it.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Port i.MX8MQ USB PHY driver from Linux.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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In order to support PHY driver probe deferral change the code to
assume EPROBE_DEFER instead of ENODEV when requested PHY is missing
from phy_provider_list.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Make use of lo_hi_readq/writeq() to implement xhci_read/write_64()
helpers, same as it is done in the Linux kernel.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Simplify route string building loop by avoiding checking
top_dev->parent->descriptor->bDeviceClass twice.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Initialize TRT flag for xHCI >= 1.0, not just == 1.0. This is what
Linux xHCI driver does.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Simplfy xhci_submit_normal()'s logic a bit by using helper variables
and making sure that usb_pipein(pipe) is only called once.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Drop 'dma' field from struct xhci_hcd since it is not really used
anywhere.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Current TRB initialization code in xHCI driver is:
a) Somewhat inconsistent in endianness correctness: LE is insured
in some places whereas in some places it isn't
b) Somewhat inconsistent in how DMA buffer address is being
written: some places utilize xhci_write_64, whereas others just
assing cmd_trb field directly
c) A bit wasetful since in a number of codepaths where TRB is used
it is memset to zero first only to have 80+% of its fields
changed to something else right after.
To fix all of the above introduce xhci_init_event_cmd_trb(), that will
initialize all of the fileds to desired values only once as well as
taking care of endianness.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Convert xhci_submit_control() to use dma_(un)map_single(). These
functions both allow us to handle potential physical/virtual address
differences as well as allowing to drop a number of typecasts.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Convert xhci_submit_normal() to use dma_(un)map_single(). These
functions both allow us to handle potential physical/virtual address
differences as well as allowing to drop a number of typecasts.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Driver's .submit_control() callback can and will be called with buffer
set to NULL (and length set to 0), so we need to make sure that we
don't try to DMA sync the buffer in that case. Add appropriate gurads
to make sure that doesn't happen.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Xhci_submit_control() submits TRB_DATA with TRB_IOC flag regardless of
the vlaue of req->requesttype, so we shouldn't gate waiting for the
event that will result from it with "req->requesttype &
USB_DIR_IN". Failing to do this will result in unstable USB
performance and will eventually cause the controller to fail
completely.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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xHCI spec allows for various context to be either 32 or 64 bytes in
size, so we can't rely on struct definitions to correctly reflect data
layout. Port varios context accessors from Linux kernel and convert
the rest of the code to use them in order to be able to support both
context sizes.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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On_hs_hub is a boolean, not a bitfiled, so usage of bitwise or is
unnecessary. Replace it with a regular assignement operator.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Make sure to initialize xhci->rings_list, otherwise any use of the
driver will result in a crash.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Cast ~XHCI_IRQS to u32 to avoid getting a warning on 64-bit builds.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Memory returned by dma_alloc_coherent() should already be zeroed
out, so there's no need to do this explicitly.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Replace occasional all-whiltespace indentation with tabs for
consistency.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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i2c is used in SPD EEPROMs and thus needed very early before barebox is
up. This patch adds a i.MX i2c driver variant for use in PBL.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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We'll add a stripped down driver variant for use in PBL. To share the
register defines add a header file for them.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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We speed up the clock frequency only if probed via platform_data.
Additionally honour the "clock-frequency" property.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Following the Linux driver the controller should be stopped in the
read transfer path only after the last transfer of a message, but
not when other transfers of the same message are following. Implement
this behaviour for the barebox driver aswell.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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We poll for different bits in the status register in different
functions. Instead of repeating the polling loops each time create
a helper function for it.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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