Commit graph

39149 commits

Author SHA1 Message Date
Maxime Ripard
ea7b1a213e libfdt: Add fdt_setprop_inplace_namelen_partial
Add a function to modify inplace only a portion of a property..

This is especially useful when the property is an array of values, and you
want to update one of them without changing the DT size.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Simon Glass <sjg@chromium.org>
2016-08-20 11:35:04 -04:00
Maxime Ripard
2b941bf96d libfdt: Add fdt_getprop_namelen_w
Add a function to retrieve a writeable property only by the first
characters of its name.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2016-08-20 11:35:03 -04:00
Maxime Ripard
8e9685715b libfdt: Add fdt_path_offset_namelen
Add a namelen variant of fdt_path_offset to retrieve the node offset using
only a fixed number of characters.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2016-08-20 11:35:02 -04:00
Maxime Ripard
6f5f92c60b libfdt: Fix separator spelling
The function fdt_path_next_seperator had an obvious mispell. Fix it.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2016-08-20 11:35:02 -04:00
Maxime Ripard
57c7809ab0 libfdt: Add max phandle retrieval function
Add a function to retrieve the highest phandle in a given device tree.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Stefan Agner <stefan@agner.ch>
Acked-by: Simon Glass <sjg@chromium.org>
2016-08-20 11:35:01 -04:00
Maxime Ripard
67e610d9f0 libfdt: Add iterator over properties
Implement a macro based on fdt_first_property_offset and
fdt_next_property_offset that provides a convenience to iterate over all
the properties of a given node.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Simon Glass <sjg@chromium.org>
2016-08-20 11:35:00 -04:00
Maxime Ripard
805ac6aacf libfdt: Add new headers and defines
The libfdt overlay support introduces a bunch of new includes and
functions.

Make sure we are able to build it by adding the needed glue.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Simon Glass <sjg@chromium.org>
2016-08-20 11:35:00 -04:00
Maxime Ripard
f272f1fcd9 vsprintf: Include stdarg for va_list
vsprintf.h doesn't include the stdarg.h file, which means that it relies on
the files that include vsprintf.h to include stdarg.h as well.

Add an explicit include to avoid build errors when simply including that
file.

Acked-by: Simon Glass <sjg@chromium.org>
Acked-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2016-08-20 11:34:59 -04:00
Maxime Ripard
716f908526 scripts: Makefile.lib: Sanitize DTB names
Having dashes as a separator in the DTB name is a quite common practice.

However, the current code to generate objects from DTBs assumes the
separator is an underscore, leading to a compilation error when building a
device tree with dashes.

Replace all the dashes in the DTB name to generate the symbols name, which
should solve this issue.

Acked-by: Simon Glass <sjg@chromium.org>
Acked-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2016-08-20 11:34:59 -04:00
Maxime Ripard
f0ed68e21f cmd: fdt: Narrow the check for fdt addr
The current code only checks if the fdt subcommand is fdt addr by checking
whether it starts with 'a'.

Since this is a pretty widely used letter, narrow down that check a bit.

Acked-by: Simon Glass <sjg@chromium.org>
Acked-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2016-08-20 11:34:58 -04:00
Tom Rini
793fd86f72 Merge branch 'master' of git://git.denx.de/u-boot-x86 2016-08-16 07:58:41 -04:00
Stefan Roese
27daffe7ce x86: Add theadorable-x86-dfi-bt700 board support
This patch adds support for the BayTrail based theadorable-x86-dfi-bt700
board which uses the DFI BT700 BayTrail Qseven SoM on a custom baseboard.
The main difference to the DFI baseboard is, that it isn't equipped
with a Super IO chip and uses the internal HS SIO UART (memory mapped
PCI based) as the console UART.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-08-16 11:44:09 +08:00
Stefan Roese
b1ad6c6966 x86: Add DFI BT700 BayTrail board support
This patch adds support for the DFI BayTrail BT700 QSeven SoM installed
on the DFI Q7X-151 baseboard. The baseboard is equipped with the Nuvoton
NCT6102D Super IO chip providing the UART as console.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-08-16 11:44:09 +08:00
Stefan Roese
303dfc2e5e x86: conga-qeval20-qa3: Add SMBus support and SMSC2513 config code
This patch includes the following changes:

- Remove Designware I2C support from dts as its not used
- Configure SMBus PADs in dts
- Enable I2C commands and I2C support
- Configure SMSC2513 USB hub via SMBus upon startup
- Move environment location to match Minnowmax example
- Enhancement of the default environment

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-08-16 11:44:09 +08:00
Stefan Roese
ca6c5e03f1 i2c: intel_i2c: SMBus driver PCI addition (e.g. BayTrail)
This patch adds support for the SMBus block read/write functionality.
Other protocols like the SMBus quick command need to get added
if this is needed.

This patch also removed the SMBus related defines from the Ivybridge
pch.h header. As they are integrated in this driver and should be
used from here. This change is added in this patch to avoid compile
breakage to keep the source git bisectable.

Tested on a congatec BayTrail board to configure the SMSC2513 USB
hub.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Heiko Schocher <hs@denx.de>
Cc: George McCollister <george.mccollister@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-08-16 11:44:09 +08:00
Yaroslav K
cc7ed26934 cbfs: Fix incorrect CBFS file header size being used
This fixes incorrect filenames in cbfsls output.

Signed-off-by: Yaroslav K. <yar444@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
[clean up checkpatch errors and warnings]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2016-08-16 11:44:09 +08:00
Simon Glass
cd379a2dc8 x86: bdinfo: Drop meaningless values
These are not useful on x86 so do not print them.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-08-16 11:44:09 +08:00
Simon Glass
ddd917b8fa bdinfo: Don't print out empty DRAM banks
There is no sense in printing out DRAM banks of size 0 since this means they
are empty. Skip them.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-08-16 11:44:09 +08:00
Bin Meng
c2147e26d9 x86: bayleybay: Add PS/2 keyboard and mouse to ASL file
Without PS/2 keyboard and mouse in the ASL file, Windows does not
see them. No problem for Linux as it probes keyboard and mouse via
the legacy 8042 I/O port.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-08-16 11:44:09 +08:00
George McCollister
144fdbdeb1 x86: som-db5800-som-6867: fix SERIRQ on reset
Explicitly enable ILB_SERIRQ function 1 in
cfio_regs_pad_ilb_serirq_PCONF0.

Pad configuration for SERIRQ is not set to enable the SERIRQ function
after a reset though strangely, it is on initial boot.

Rebooting from Linux, reset command in u-boot and even pushing the reset
button on the development board all lead to the SERIRQ function being
disabled (address 0xfed0c560 with value of 0x2003cc80).

Signed-off-by: George McCollister <george.mccollister@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-08-16 11:44:09 +08:00
Stefan Roese
4cf9e464f7 misc: Add simple driver for some Nuvoton NCT6102D devices
This simple driver provides some functions to control some of the
integrated devices. The watchdog is enabled per default. This driver
adds a function to disable the watchdog. Also the internal legacy
UART (io address 0x3f8/0x2f8) is enabled per default.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
2016-08-16 11:44:09 +08:00
Stefan Roese
d7b935bf62 x86: baytrail: Add SIO HS-UART clock setup
To support the BayTrail internal SIO HS UART, the internal UART clock
needs to get configured. This patch adds support for this clock
configuration which will be done, if the PCI device(s) are found.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-08-16 11:44:09 +08:00
Stefan Roese
bf4ea7ed21 x86: cache.h: Add default for CONFIG_SYS_CACHELINE_SIZE
Don't just define ARCH_DMA_MINALIGN but also CONFIG_SYS_CACHELINE_SIZE
if it's undefined. This is needed for the xhci driver to compile.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-08-16 11:44:09 +08:00
Simon Glass
37b4a9098c x86: Mention running U-Boot in 64-bit mode in the README
This feature is not supported. Document this, and add some details on how it
might be implemented.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-08-16 11:44:09 +08:00
Simon Glass
007adbc2f9 x86: Add a reference to README.efi
UEFI is commonly used on x86. Add a reference to U-Boot's support for this
in the x86 README.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-08-16 11:44:09 +08:00
Simon Glass
dc396210d9 x86: Mention how to boot a 64-bit kernel from U-Boot
The README indicates that this is not supported, but this is no-longer true.
Update the text to indicate this and describe the FIT changes required.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-08-16 11:44:09 +08:00
Stefan Roese
5d98c5ec8e x86: doc: Add note about the debug FSP usage on BayTrail
The debug FSP image is bigger in size than the normal FSP image. This
patch adds a small description on how to use this FSP debug version
by changing CONFIG_FSP_ADDR.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-08-16 11:44:09 +08:00
Stefan Roese
f55137fd74 x86: conga-qeval20-qa3: Add missing MAINTERNERS entry
Add entry for the missing internal UART defconfig to the MAINTAINERS
file.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Bin Meng <bmeng.cn@gmail.com>
CC: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-08-16 11:44:09 +08:00
Jaehoon Chung
177381a9f9 mmc: mmc_legacy: fix the compiler error with disabled CONFIG_DM_MMC_OPS
To prevent the compiler error, split the checking condition whether
cfg->ops is NULL or not.
It's more clearly, because it's not included in mmc_config structure
when CONFIG_DM_MMC_OPS is disabled.

drivers/mmc/mmc_legacy.c: In function ‘mmc_create’:
drivers/mmc/mmc_legacy.c:118:31: error: ‘const struct mmc_config’ has no member named ‘ops’
drivers/mmc/mmc_legacy.c:118:58: error: ‘const struct mmc_config’ has no member named ‘ops’
make[1]: *** [drivers/mmc/mmc_legacy.o] Error 1

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-08-16 10:27:24 +09:00
Yangbo Lu
d188b11302 mmc: send CMD0 before CMD1 for some MMC cards
When the MMC framework was added in u-boot, the mmc_go_idle was
added before mmc_send_op_cond_iter in function mmc_send_op_cond
annotating that some cards seemed to need this. Actually, we still
need to do this in function mmc_complete_op_cond for those cards.
This has been verified on Micron MTFC4GACAECN eMMC chip.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
2016-08-16 10:27:07 +09:00
Sekhar Nori
ba92cd74d2 defconfig: k2g_evm_defconfig: Enable mmc driver model
K2G can benefit from driver model support in the
MMC/SD driver it uses: omap_hsmmc

Enable driver model MMC support for K2G.

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Acked-by: Mugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-08-16 10:24:11 +09:00
Sekhar Nori
ce52531c5d ARM: dts: k2g-evm: enable mmc/sd suppport
The K2G EVM from TI has an SD card slot as
well as onboard eMMC for data storage.

Enable support for these.

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Acked-by: Mugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-08-16 10:24:11 +09:00
Sekhar Nori
5396edc675 ARM: dts: K2G: Add support for MMC controller
K2G SoC from TI has two MMC/SD controllers.
Add device tree data for these.

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Acked-by: Mugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-08-16 10:24:10 +09:00
Sekhar Nori
4de2de5149 drivers: mmc: omap_hsmmc: fix build breakage
structure member 'cd_inverted' of omap_hsmmc_data
is available only when OMAP_HSMMC_USE_GPIO is
defined.

When CONFIG_DM_MMC is defined, but not
CONFIG_OMAP_GPIO, this will cause build breakage
in omap_hsmmc driver of the sort:

  CC      drivers/mmc/omap_hsmmc.o
../drivers/mmc/omap_hsmmc.c: In function 'omap_hsmmc_ofdata_to_platdata':
../drivers/mmc/omap_hsmmc.c:1763:6: error: 'struct omap_hsmmc_data' has no member named 'cd_inverted'
  priv->cd_inverted = fdtdec_get_bool(fdt, node, "cd-inverted");
      ^

Fix this by accessing cd_inverted only when
OMAP_HSMMC_USE_GPIO is defined.

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Acked-by: Mugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-08-16 10:24:10 +09:00
Tom Rini
4cc9699be7 common: env_nand: Ensure that we have nand_info[0] prior to use
Now that nand_info[] is an array of pointers we need to ensure that it's
been populated prior to use.  We may for example have ENV in NAND set in
configurations that run on boards with and without NAND (where default
env is fine enough, such as omap3_beagle and beagleboard (NAND) vs
beagle xM (no NAND)).

Fixes: b616d9b0a7 ("nand: Embed mtd_info in struct nand_chip")
Cc: Scott Wood <oss@buserror.net>
Signed-off-by: Tom Rini <trini@konsulko.com>
Acked-by: Scott Wood <oss@buserror.net>
2016-08-15 18:46:41 -04:00
Andreas Fenkart
183923d3e4 tools/env: ensure environment starts at erase block boundary
56086921 added support for unaligned environments access.
U-boot itself does not support this:
- env_nand.c fails when using an unaligned offset. It produces an
  error in nand_erase_opts{drivers/mtd/nand/nand_util.c}
- in env_sf/env_flash the unused space at the end is preserved, but
  not in the beginning. block alignment is assumed
- env_sata/env_mmc aligns offset/length to the block size of the
  underlying device. data is silently redirected to the beginning of
  a block

There is seems no use case for unaligned environment. If there is
some useful data at the beginning of the the block (e.g. end of u-boot)
that would be very unsafe. If the redundant environments are hosted by
the same erase block then that invalidates the idea of double buffering.
It might be that unaligned access was allowed in the past, and that
people with legacy u-boot are trapped. But at the time of 56086921
it wasn't supported and due to reasons above I guess it was never
introduced.
I prefer to remove that (unused) feature in favor of simplicity

Signed-off-by: Andreas Fenkart <andreas.fenkart@digitalstrom.com>
Acked-by: Stefan Agner <stefan.agner@toradex.com>
2016-08-15 18:46:40 -04:00
Chris Zankel
7e270ec3af xtensa: add support for the 'xtfpga' evaluation board
The 'xtfpga' board is actually a set of FPGA evaluation boards that
can be configured to run an Xtensa processor.

 - Avnet Xilinx LX60
 - Avnet Xilinx LX110
 - Avnet Xilinx LX200
 - Xilinx ML605
 - Xilinx KC705

These boards share the same components (open-ethernet, ns16550 serial,
lcd display, flash, etc.).

Signed-off-by: Chris Zankel <chris@zankel.net>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-08-15 18:46:40 -04:00
Max Filippov
28b48a0710 xtensa: add core information for the de212 processor
DE212 is a general purpose xtensa processor without full MMU.
Core information files are autogenerated from the processor description
and are not meant to be edited.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-08-15 18:46:40 -04:00
Max Filippov
2d2811c230 xtensa: add core information for the dc233c processor
DC233C is an xtensa processor with full MMUv3 capable of running Linux.
Core information files are autogenerated from the processor description
and are not meant to be edited.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-08-15 18:46:39 -04:00
Chris Zankel
da188a0388 xtensa: add core information for the dc232b processor
DC232B is an xtensa processor with full MMUv2 capable of running Linux.
Core information files are autogenerated from the processor description
and are not meant to be edited.

Signed-off-by: Chris Zankel <chris@zankel.net>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-08-15 18:46:39 -04:00
Chris Zankel
c978b52410 xtensa: add support for the xtensa processor architecture [2/2]
The Xtensa processor architecture is a configurable, extensible,
and synthesizable 32-bit RISC processor core provided by Tensilica, inc.

This is the second part of the basic architecture port, adding the
'arch/xtensa' directory and a readme file.

Signed-off-by: Chris Zankel <chris@zankel.net>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-08-15 18:46:38 -04:00
Chris Zankel
de5e5cea02 xtensa: add support for the xtensa processor architecture [1/2]
The Xtensa processor architecture is a configurable, extensible,
and synthesizable 32-bit RISC processor core provided by Cadence.

This is the first part of the basic architecture port with changes to
common files. The 'arch/xtensa' directory, and boards and additional
drivers will be in separate commits.

Signed-off-by: Chris Zankel <chris@zankel.net>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-08-15 18:46:38 -04:00
Jon Medhurst \(Tixy\)
f225d39d30 vexpress: Check TC2 firmware support before defaulting to nonsec booting
The firmware on TC2 needs to be configured appropriately before booting
in nonsec mode will work as expected, so test for this and fall back to
sec mode if required.

Signed-off-by: Jon Medhurst <tixy@linaro.org>
Reviewed-by: Ryan Harkin <ryan.harkin@linaro.org>
Tested-by: Ryan Harkin <ryan.harkin@linaro.org>
2016-08-15 18:46:38 -04:00
Tom Rini
0fcb9f07a1 Merge branch 'master' of git://git.denx.de/u-boot-atmel 2016-08-15 17:31:23 -04:00
Wenyou Yang
a0d0d86f5c mmc: atmel_sdhci: Convert to the driver model support
Convert the driver to the driver model while retaining the existing
legacy code. This allows the driver to support boards that have
converted to driver model as well as those that have not.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
2016-08-15 22:58:05 +02:00
Wenyou Yang
17b68b5a58 dm: atmel: Add driver model support for the ehci driver
Add driver model support while retaining the existing legacy code.
This allows the driver to support boards that have converted to
driver model as well as those that have not.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Acked-by: Simon Glass <sjg@chromium.org>
2016-08-15 22:58:04 +02:00
Wenyou Yang
2c4b2dd289 ARM: at91/dt: Add device tree for SAMA5D2 Xplained
Add device tree for SAMA5D2 Xplained board.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
2016-08-15 22:58:04 +02:00
Wenyou Yang
256a3f2466 atmel: Bring in at91 pio4 device tree file and bindings
Bring in required device tree file and bindings from Linux.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Andreas Bießmann <andreas@biessmann.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-08-15 22:58:04 +02:00
Wenyou Yang
ac72e174f9 pinctrl: at91-pio4: Add pinctrl driver
AT91 PIO4 controller is a combined gpio-controller, pin-mux and
pin-config module. The peripheral's pins are assigned through
per-pin based muxing logic.

The pin configuration is performed on specific registers which
are shared along with the gpio controller. So regard the pinctrl
device as a child of atmel_pio4 device.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Andreas Bießmann <andreas@biessmann.org>
2016-08-15 22:58:03 +02:00
Wenyou Yang
ee3311db1c gpio: atmel_pio4: Rework to support DM & DT
Rework the driver to support driver model and device tree, and
support to regard the pio4 pinctrl device as a child of
atmel_pio4 device.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-08-15 22:58:03 +02:00