Commit graph

17031 commits

Author SHA1 Message Date
Jean-Jacques Hiblot
35f9e196f9 mmc: introduce mmc modes
no functionnal changes.
In order to add the support for the high speed SD and MMC modes, it is
useful to track this information.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-01-12 18:11:03 +09:00
Jean-Jacques Hiblot
dfda9d88e5 mmc: make ext_csd part of struct mmc
The ext csd is used for comparison many times. Keep a reference content
of the ext csd in the struct mmc to avoid reading multiple times

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-01-12 18:11:03 +09:00
Jean-Jacques Hiblot
06ec045fee mmc: dm: get the IO-line and main voltage regulators from the dts
Get a reference to the regulator devices from the dts and store them
in the struct mmc for later use.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-01-12 18:11:03 +09:00
Tom Rini
2f4c9de3d0 Merge git://git.denx.de/u-boot-imx 2018-01-08 12:51:47 -05:00
Stefan Agner
46718353b2 imx: initialize and use generic timer on i.MX 6UL/ULL
The i.MX 6UL/ULL feature a Cortex-A7 CPU which suppor the ARM
generic timer. This change makes use of the ARM generic timer in
U-Boot.

This is crucial to make the ARM generic timers usable in Linux since
timer_init() initalizes the system counter module, which is necessary
to use the generic timers CP15 registers.

Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2018-01-08 17:33:06 +01:00
Stefan Agner
616aa55d17 imx: move CONFIG_SYSCOUNTER_TIMER to Kconfig
Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2018-01-08 17:33:06 +01:00
Clemens Gruber
598e9dccc7 crypto/fsl: fix BLOB encapsulation and decapsulation
The blob_encap and blob_decap functions were not flushing the dcache
before passing data to CAAM/DMA and not invalidating the dcache when
getting data back.
Therefore, blob encapsulation and decapsulation failed with errors like
the following due to data cache incoherency:
"40000006: DECO: desc idx 0: Invalid KEY command"

To ensure coherency, we require the key_mod, src and dst buffers to be
aligned to the cache line size and flush/invalidate the memory regions.
The same requirements apply to the job descriptor.

Tested on an i.MX6Q board.

Reviewed-by: Sumit Garg <sumit.garg@nxp.com>
Signed-off-by: Clemens Gruber <clemens.gruber@pqgruber.com>
2018-01-08 08:26:03 -05:00
Fabio Estevam
290e7cfdbf mx6ull: Handle the CONFIG_MX6ULL cases correctly
Since commit 051ba9e082 ("Kconfig: mx6ull: Deselect MX6UL from
CONFIG_MX6ULL") CONFIG_MX6ULL does not select CONFIG_MX6UL anymore, so
take this into consideration in all the checks for CONFIG_MX6UL.

This fixes a boot regression.

Reported-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Stefan Agner <stefan@agner.ch>
Tested-by: Breno Lima <breno.lima@nxp.com>
Tested-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Stefano Babic <sbabic@denx.de>
Tested-by: Jörg Krause <joerg.krause@embedded.rocks>
2018-01-04 16:29:04 +01:00
Christopher Spinrath
5a6440cac7 ARM: imx: cm_fx6: env: don't run boot scripts twice
Boot scripts located in the root directory of the first partition of
USB, mmc, and SATA drives are executed twice: first by the distro boot
command and then by the legacy boot command. This may have weird side
effects if those scripts only change or extend the environment
(including parts of the boot command itself).

Removing the script execution from the legacy boot command has its own
caveats. For instance, the distro boot command may execute the boot.scr
on the mmc drive, then the boot.scr on the SATA drive, before the
legacy boot command actually boots from the mmc drive. However, the
current behavior would only execute the boot.scr once more before the
actual boot, but it does not prevent the script located on the SATA
drive from being executed, and thus, both scripts from being mixed up.

Considering that the legacy boot command is only in place to boot old
(standard) installations, let's go with the resolution having less
custom code and remove the script execution from the legacy boot
command.

Signed-off-by: Christopher Spinrath <christopher.spinrath@rwth-aachen.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2018-01-03 14:29:04 +01:00
Christopher Spinrath
3ef5f6714a ARM: imx: cm_fx6: env: support distro boot command
The current default environment of the cm_fx6 is not suitable for
booting modern distributions.

Instead of extending the custom environment, let's use the distro
boot command, which has been developed for precisely this use case.

If the distro boot command fails, fall back to the old behavior
(except for USB drives where the old behaviour is completely covered
by the distro boot command). That way it is still possible to create
"rescue SD cards" for old installations (e.g. if one messes up the
on-flash environment).

Signed-off-by: Christopher Spinrath <christopher.spinrath@rwth-aachen.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2018-01-03 14:28:49 +01:00
Christopher Spinrath
6b79f71c8e ARM: imx: cm_fx6: env: use standard variables
In preparation for supporting the distro boot command, introduce the
standard variables for specifying load addresses, which are documented
in README and doc/README.distro, and replace the custom variables
used so far with them.

Since the current address layout disregards an address for an initramfs,
also switch to the load addresses used and proven by other imx6 boards
(e.g. the wandboard and nitrogen6x), instead of going on with our own
way.

Signed-off-by: Christopher Spinrath <christopher.spinrath@rwth-aachen.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2018-01-03 14:27:12 +01:00
Eric Nelson
baefb63a13 mx6: Add board mx6memcal for use in validating DDR
This is a virtual "board" that uses configuration files and
Kconfig to define the memory layout used by a real board during
the board bring-up process.

It generates an SPL image that can be loaded using imx_usb or
SB_LOADER.exe.

When run, it will generate a set of calibration constants for
use in either or both a DCD configuration file for boards that
use u-boot.imx or struct mx6_mmdc_calibration for boards that
boot via SPL.

In essence, it is a configurable, open-source variant of the
Freescale ddr-stress tool.

	https://community.nxp.com/docs/DOC-105652

File mx6memcal_defconfig configures the board for use with
mx6sabresd or mx6qsabreauto.

Signed-off-by: Eric Nelson <eric@nelint.com>
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
2018-01-03 13:58:51 +01:00
Heinrich Schuchardt
5da3b3d104 dm: core: remove orphaned parameter description in platdata.h
struct driver_info has no field 'flags'.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-01-01 09:04:19 -05:00
Derald D. Woods
c2900f595e ARM: dts: omap3-evm: Enable DM and devicetree for TMDSEVM{3530, 3730}
This commit updates the configuration files needed to support OF_CONTROL
on the OMAP3 EVM baseboard.

Additionally:
- CONFIG_SYS_THUMB_BUILD is enabled
- CONFIG_SPL_ENV_SUPPORT is enabled

Tested using GCC 7.2.0 [--with-float=hard --with-mode=thumb].

Signed-off-by: Derald D. Woods <woods.technical@gmail.com>
2018-01-01 09:04:19 -05:00
Derald D. Woods
2d28ba18b5 ARM: omap3: evm: Do not relocate FDT address
This commit keeps the 'fdtaddr' as provided by DEFAULT_LINUX_BOOT_ENV.

Signed-off-by: Derald D. Woods <woods.technical@gmail.com>
2018-01-01 09:04:19 -05:00
Tom Rini
3bb6dc04a9 Merge git://git.denx.de/u-boot-imx 2017-12-29 09:27:04 -05:00
Fabio Estevam
6ca03f0dfb mx6sxsabresd: Load the correct dtb for revA board
Currently only imx6sx-sdb.dtb is loaded, but if revA board is used the
correct dtb is imx6sx-sdb-reva.dtb, so make this possible.

While at it, remove an extra 'mmc dev'.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
2017-12-29 11:18:59 +01:00
Peng Fan
d56f6ca288 power: pmic.h: include dm/ofnode.h
Include dm/ofnode.h.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2017-12-29 11:18:59 +01:00
Adam Ford
1b25f2d9d7 mx6_common: remove dead code
There is an #ifdef and #endif with nothing in between.  This patch simply
removes this dead/useless code.

Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2017-12-29 11:17:22 +01:00
Tom Rini
8e5f0497c8 Merge git://git.denx.de/u-boot-dm 2017-12-27 08:17:05 -05:00
Masahiro Yamada
7e3caa81e0 Move CONFIG_PANIC_HANG to Kconfig
Freescale (NXP) boards have lots of defconfig files per board.
I used "imply PANIC_HANG" for them.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2017-12-26 13:10:24 -05:00
Prabhakar Kushwaha
4ace304062 boards: ls1046ardb: disable unavailable "ethernet" node in dts
Linux device tree contains "ethernet" node for all possible
interface supported by SoC i.e. LS1046A.

It is not necessary for a SerDes protocol to support all possible
interface. So disable unavailable "ethernet" node in device tree.

Also, enable FDT_SEQ_MACADDR_FROM_ENV to fetch MAC address
sequentially from environment variables

Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2017-12-24 12:42:50 -07:00
Prabhakar Kushwaha
6bedf44714 arm: Add support of updating dts before fix-up
"ethernet" node fix-up for device tree happens before Linux boot.

There can be requirement of updating "ethernet" node even before
fix-up. So, add support of updating "ethernet" node.

Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2017-12-24 12:42:50 -07:00
Tom Rini
b55c89ce02 Merge git://git.denx.de/u-boot-spi 2017-12-19 07:57:40 -05:00
Tom Rini
76cc372879 Merge git://git.denx.de/u-boot-sunxi 2017-12-19 07:57:33 -05:00
Jagan Teki
e628f00828 sunxi: arm64: Increase CONFIG_SYS_BOOTM_LEN to 32MB
The default value of CONFIG_SYS_BOOTM_LEN, 0x800000, causes error
when uncompressing Image.gz out of FIT image.

  Uncompressing Kernel Image ... Error: inflate() returned -5
Image too large: increase CONFIG_SYS_BOOTM_LEN

and loading Image out of FIT image.
   Loading Kernel Image ... Image too large: increase CONFIG_SYS_BOOTM_LEN
Must RESET board to recover

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-12-19 16:26:20 +05:30
Tom Rini
eeab579aa8 Merge git://git.denx.de/u-boot-rockchip 2017-12-18 18:39:18 -05:00
Tom Rini
1a3fc354b5 Merge git://git.denx.de/u-boot-fsl-qoriq 2017-12-18 18:39:00 -05:00
Sam Protsenko
dd0829f6c3 am335x_evm: Fix DFU for eMMC
Use dfu_alt_info_emmc variable from include/environment/ti/dfu.h file.
It was probably overlooked when extracting DFU variables to mentioned
file.

This patch fixes DFU on BeagleBone Black, so that we can use commands
like ones below to upgrade various images on eMMC:

    => setenv dfu_alt_info $dfu_alt_info_emmc
    => dfu 0 mmc 1

    $ dfu-util -D MLO -a MLO.raw
    $ dfu-util -D u-boot.img -a u-boot.img.raw

Without this patch, the  user is forced to assign the value to
dfu_alt_info_emmc manually, which contradicts with instructions [1].

[1] http://processors.wiki.ti.com/index.php/Linux_Core_U-Boot_User%27s_Guide

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
2017-12-18 13:06:30 -05:00
Tom Rini
90d75d2efc Xilinx changes for v2018.01-rc2-v2
fpga:
 - Enable loading bitstream via fit image for !xilinx platforms
 
 zynq:
 - Fix SPL SD boot mode
 
 zynqmp:
 - Not not reset in panic
 - Do not use simple allocator because of fat changes
 - Various dt chagnes
 - modeboot variable setup
 - Fix fpga loading on automotive devices
 - Fix coverity issues
 
 test:
 - Fix env test for !hush case - Stephen's patch
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Merge tag 'xilinx-for-v2018.01-rc2-v2' of git://www.denx.de/git/u-boot-microblaze

Xilinx changes for v2018.01-rc2-v2

fpga:
- Enable loading bitstream via fit image for !xilinx platforms

zynq:
- Fix SPL SD boot mode

zynqmp:
- Not not reset in panic
- Do not use simple allocator because of fat changes
- Various dt chagnes
- modeboot variable setup
- Fix fpga loading on automotive devices
- Fix coverity issues

test:
- Fix env test for !hush case - Stephen's patch
2017-12-18 12:23:27 -05:00
York Sun
1b7910a37c armv8: ls1046aqds: Adjust IFC timing for NOR flash
Increase setup, assertion and hold time related to chip-select signal.
Additional delay is needed for the signal to propogate through FPGA.
This adjustment slightly increase the read and write cycle but has no
impact on burst read or write.

Signed-off-by: York Sun <york.sun@nxp.com>
2017-12-18 08:25:07 -08:00
York Sun
63143a5f92 armv8: ls2080a: Increase load image len for NAND boot
Again the image size increases and the length needs to be adjusted.

Signed-off-by: York Sun <york.sun@nxp.com>
2017-12-18 08:24:55 -08:00
Klaus Goger
81f53b0daf rockchip: move CONFIG_ENV_SIZE and CONFIG_ENV_OFFSET to Kconfig
This commit adds ENV_SIZE and ENV_OFFSET configuration items for
ARCH_ROCKCHIP, but keeps these non-visible (i.e. not prompt is given).
With these new items present, the configuration from the header files
is moved to Kconfig.

Keeping these non-visible is necessary to have the possibility to
select new default values if CONFIG_IS_IN_* is changed (interactively
or with oldconfig). Otherwise it will always be set to a previous
value if used with a prompt.  As an example if we do a defconfig with
CONFIG_IS_IN_MMC and change it to CONFIG_IS_IN_SPI_FLASH via
menuconfig, ENV_SIZE and ENV_OFFSET will not be changed to the correct
values as defconfig will already have set them to the default values
of CONFIG_IS_IN_MMC in .config.

Signed-off-by: Klaus Goger <klaus.goger@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-12-18 00:26:16 +01:00
Kever Yang
c5a4141343 rockchip: config: update part table
User do not need to access the reserved part in system, remove them
from partition table.
Rename atf to trust as generic name for armv7 do not use ATF.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-12-17 16:55:36 +01:00
Heinrich Schuchardt
678e03a00c efi_loader: new function efi_delete_handle()
Provide a function to remove a handle from the object list
after removing all protocols.

To avoid forward declarations other functions have to move up
in the coding.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2017-12-16 23:07:36 +01:00
Heinrich Schuchardt
56d9288858 efi_loader: return status from efi_setup_loaded_image()
efi_setup_loaded_image() should return an error code indicating if
an error has occurred.

An error occurs if a protocol cannot be installed.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2017-12-16 23:07:25 +01:00
Yangbo Lu
4a47bf8a2b armv8: ls1012ardb: add more board version information
Add LS1012ARDB RevC/RevC1/RevC2/RevD/RevE information and
detect it when u-boot starts up.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2017-12-14 13:08:47 -08:00
Yangbo Lu
481fb01f41 armv8: ls1012ardb: clean up definitions for I2C IO expanders
This patch is to clean up definitions for I2C IO expanders.
The value 0x10 of __SW_BOOT_EMU is wrong. It should be 0x2.
Fixed it in this patch.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2017-12-14 13:08:47 -08:00
Tom Rini
15616a0aa5 Merge git://git.denx.de/u-boot-dm 2017-12-14 15:46:07 -05:00
Michal Simek
24124abe06 arm64: zynqmp: Add support for generic QSPI boot
This patch is enabling support for SPL QSPI boot.

First of all it is necessary to generate atf-spi.ub which is different
format than atf-uboot.ub (this can be made as legacy image too)

ADDR=`arm-xilinx-linux-gnueabi-readelf -a bl31.elf | grep "Entry point
address" | cut -d ':' -f 2 | sed -e 's/^[ \t]*//'`
aarch64-linux-gnu-objcopy -O binary bl31.elf bl31.bin
./tools/mkimage -f auto -A arm64 -T firmware -C none -O u-boot -a $ADDR
-e $ADDR -n "atf1" -E -b arch/arm/dts/zynqmp-zcu102.dtb -d bl31.bin
atf-uboot.ub
./tools/mkimage -A arm64 -T firmware -C none -O u-boot -a $ADDR -e $ADDR
-n "atf-for-qspi" -E -d bl31.bin atf-spi.ub

This patch is using this QSPI layout with offsets:
0 boot.bin
512k atf-ub
640k u-boot.bin
1280k u-boot.img

Which corresponding by writing these images(read from MMC)
mmcinfo
sf probe
load mmc 0 10000000 boot.bin
sf erase 0 +$filesize
sf write 10000000 0 $filesize
load mmc 0 10000000 atf-spi.ub
sf erase 0x80000 +$filesize
sf write 10000000 0x80000 $filesize
load mmc 0 10000000 u-boot.bin
sf erase 0xa0000 +$filesize
sf write 10000000 0xa0000 $filesize
load mmc 0 10000000 u-boot.img
sf erase 0x140000 +$filesize
sf write 10000000 0x140000 $filesize

For testing u-boot running in EL3 you can break atf-spi.ub like this:
sf probe
sf erase 0x80000 +4

Then u-boot.img is executed.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2017-12-14 20:08:21 +01:00
Michal Simek
b45c17c723 arm64: zynqmp: Do not use SPL_SYS_MALLOC_SIMPLE allocator
This was caused by: "fs/fat: Reduce stack usage"
 (sha1:2460098cffacd18729262e3ed36656e6943783ed) which converted
fat code to use malloc. But simple malloc is not freeing space
that's why full malloc implementation is needed.
Malloc space is added to RAM.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2017-12-14 20:08:21 +01:00
Michal Simek
6ee28cb953 arm64: zynqmp: Do not perform reset in case of panic
Do not perform reset when panic happens because in the next reset
panic happens again and logs are overflood by the same errors.
This can be enabled by default and reset can be performed via watchdog.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2017-12-14 20:08:21 +01:00
Michal Simek
52b36fd155 arm: zynq: Fix SPL SD boot mode
This patch is fixing two issues:
1. Insufficient stack size for fat fs buffers
2. Insufficient space in malloc area

Tested on zc702 and zc706.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2017-12-14 20:08:15 +01:00
Goldschmidt Simon
8b93a92f6d fpga: allow programming fpga from FIT image for all FPGA drivers
This drops the limit that fpga is only loaded from FIT images for Xilinx.
This is done by moving the 'partial' check from 'common/image.c' to
'drivers/fpga/xilinx.c' (the only driver supporting partial images yet)
and supplies a weak default implementation in 'drivers/fpga/fpga.c'.

Signed-off-by: Simon Goldschmidt <sgoldschmidt@de.pepperl-fuchs.com>
Tested-by: Michal Simek <michal.simek@xilinx.com> (On zcu102)
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2017-12-14 16:09:39 +01:00
Tom Rini
7ef548e600 Merge branch 'master' of git://git.denx.de/u-boot-socfpga 2017-12-13 17:58:46 -05:00
Tom Rini
fd12455643 Merge branch 'rmobile-mx' of git://git.denx.de/u-boot-sh 2017-12-13 17:58:27 -05:00
Tom Rini
9ebc54b8a6 Merge git://git.denx.de/u-boot-samsung 2017-12-13 17:58:18 -05:00
Rajesh Bhagat
4c616a13de arm64: ls1012afrdm: Add distro boot support
Include common config_distro_defaults.h and config_distro_bootcmd.h
for u-boot enviroments to support automatical distro boot which
scan boot.scr from external storage devices(e.g. SD and USB)
and execute autoboot script.

Signed-off-by: Bhaskar Upadhaya <Bhaskar.Upadhaya@nxp.com>
Signed-off-by: Rajesh Bhagat <rajesh.bhagat@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2017-12-13 13:40:29 -08:00
Rajesh Bhagat
a81357a264 arm64: ls1012ardb: Add distro boot support
Include common config_distro_defaults.h and config_distro_bootcmd.h
for u-boot enviroments to support automatical distro boot which
scan boot.scr from external storage devices(e.g. SD and USB)
and execute autoboot script.

Signed-off-by: Bhaskar Upadhaya <Bhaskar.Upadhaya@nxp.com>
Signed-off-by: Rajesh Bhagat <rajesh.bhagat@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2017-12-13 13:40:29 -08:00
Yangbo Lu
44cdb5b6a1 armv8: ls1088ardb: support force SDHC mode by hwconfig
The BRDCFG5[SPISDHC] register field of Qixis device is used
to control SPI and SDHC signal routing.

10 = Force SDHC Mode
  - SPI_CS[0] is routed to CPLD for SDHC_VS use.
  - SPI_CS[1] is unused.
  - SPI_CS[2:3] are routed to the TDMRiser slot.

11 = Force eMMC Mode
  - SPI_CS[0:3] are routed to the eMMC card.

0X = Auto Mode
  - If SDHC_CS_B=0 (SDHC card installed): Use SDHC mode
    described above.
  - Else SDHC_CS_B=1 (no SDHC card installed): Use eMMC
    mode described above.

In default the hardware uses auto mode, but sometimes we need
to use force SDHC mode to support SD card hotplug, or SD sleep
waking up in kernel. This patch is to support force SDHC mode
by hwconfig.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2017-12-13 13:40:29 -08:00