Commit graph

3240 commits

Author SHA1 Message Date
Andy Yan
d1dcf8527e rockchip: rk3368: Add clock driver
Add driver to setup the various PLLs and peripheral
clocks on the RK3368.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-06-07 07:29:19 -06:00
Simon Glass
457e51cffd common: arm: freescale: layerscape: Move header files out of common.h
We should not have an arch-specific header file in common.h. Adjust the
board files a little so it is not needed, and drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-05 14:12:59 -04:00
Simon Glass
68994b98fc common: freescale: Move arch-specific imx code to arch-imx
These declarations should not be in common.h. Move them to an
arch-specific header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-05 12:31:22 -04:00
Simon Glass
6e2941d787 common: freescale: Move arch-specific declarations
The declarations should not be in common.h. Move them to the arch-specific
headers.

Signed-off-by: Simon Glass <sjg@chromium.org>
[trini: Fixup thinko defined(FSL_LSCH3) -> defined(CONFIG_FSL_LSCH3)]
Signed-off-by: Tom Rini <trini@konsulko.com>
2017-06-05 12:30:55 -04:00
Simon Glass
5d9828563f arm: Include asm/setup.h explictly
Include this header where needed so we do not need to rely on common.h.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-05 11:02:37 -04:00
Simon Glass
c45300b038 arm: Add declarations to avoid needing to include headers
At present common.h includes various ARM-specific headers. In preparation
for dropping this, add a few explicit declarations.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-05 11:02:37 -04:00
Simon Glass
ac6a6bd64a arm: Make u-boot-arm.h a private header
Rather than including this arch-specific header file in common.h, include
it from within arm's u-boot.h header.

Also drop the comment about something to be fixed. It has been there
forever and it is not clear what it means.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-05 11:02:33 -04:00
Simon Glass
0d8c939414 samsung: Drop s3c24x0 arch-specific code
This is not used anymore. Drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-05 11:02:29 -04:00
Tom Rini
8bb687fdc1 t81xx: Migrate TI81XX/TI816X/TI814X symbols to Kconfig
The symbol CONFIG_TI81XX is used for the parts that are common to the
TI816x and TI814x SoCs and are not part of CONFIG_ARCH_OMAP2PLUS nor
CONFIG_AM33XX.  It however has so few uses that we can just modify the
code to check for both and drop the symbol. The symbols CONFIG_TI816X
and CONFIG_TI814X are for the repective SoCs.

Signed-off-by: Tom Rini <trini@konsulko.com>
2017-06-05 11:02:25 -04:00
Tom Rini
8627733941 ti816x: Rework DDR initialization sequence
The ti816x/am389x SoC is the first generation in what U-Boot calls the
"am33xx" family.  In the first generation of this family the DDR
initialization sequence is quite different from all of the subsequent
generations.  Whereas with ti814x (second generation) we can easily work
the minor differenced between that and am33xx (third generation), our
attempts to do this for ti816x weren't sufficient.  Rather than add a
large amount of #ifdef logic to make this different sequence work we add
a new file, ti816x_emif4.c to handle the various required undocumented
register writes and sequence and leverage what we can from
arch/arm/mach-omap2/am33xx/ddr.c still.  As DDR2 has similar problems
today but I am unable to test it, we drop the DDR2 defines from the code
rather than imply that it works by leaving it.  We also remove a bunch
of other untested code about changing the speed the DDR runs at.

Signed-off-by: Tom Rini <trini@konsulko.com>
2017-06-05 11:02:23 -04:00
York Sun
8e59778bec armv8: layerscape: Enabling loading PPA during SPL stage
Loading PPA in SPL puts the rest of U-Boot (including RAM version
loaded later) in EL2 with MMU and cache enabled. Once PPA is loaded,
PSCI is available.

Signed-off-by: York Sun <york.sun@nxp.com>
2017-06-01 19:57:24 -07:00
Tom Rini
380e86f361 Merge git://git.denx.de/u-boot-fsl-qoriq 2017-05-26 11:19:27 -04:00
Priyanka Jain
e809e74799 armv8: fsl-layerscape: Add NXP LS2081A, LS2041A SoC support
The QorIQ LS2081A SoC has eight 64-bit ARM v8 Cortex A72 cores and
is built on layerscape architecture. It is 40-pin derivative of
LS2084A (non-AIOP personality of LS2088A). So feature-wise it is
same as LS2084A. LS2041A is a 4-core personality of LS2081A.

Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
Signed-off-by: Santan Kumar <santan.kumar@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2017-05-23 09:40:23 -07:00
Priyanka Jain
5193405a16 board: freescale: ls2080ardb: Enable SD interface for RevF board
LS2080ARDB/LS2088ARDB RevF board has smart voltage translator
which needs to be programmed to enable high speed SD interface
by setting GPIO4_10 output to zero.

Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
Signed-off-by: Santan Kumar <santan.kumar@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2017-05-23 09:12:26 -07:00
Tom Rini
711391131c Merge git://git.denx.de/u-boot-sunxi
trini: Make Kconfig SPL_xxx entires only show if SPL, so that we don't
get Kconfig errors on platforms without SPL, ie sandbox (without SPL).

Signed-off-by: Tom Rini <trini@konsulko.com>
2017-05-22 19:20:28 +00:00
Simon Glass
551c393446 Convert CONFIG_CMD_HASH to Kconfig
This converts the following to Kconfig:
   CONFIG_CMD_HASH

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
[trini: Rework slightly, enable on some boards again]
Signed-off-by: Tom Rini <trini@konsulko.com>
2017-05-22 12:38:15 -04:00
Simon Glass
ea7971f705 Convert CONFIG_CMD_ESBC_VALIDATE to Kconfig
This converts the following to Kconfig:
   CONFIG_CMD_ESBC_VALIDATE

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2017-05-22 09:33:55 -04:00
Tom Rini
089df18bfe lib: move hash CONFIG options to Kconfig
Commit 94e3c8c4fd ("crypto/fsl - Add progressive hashing support
using hardware acceleration.") created entries for CONFIG_SHA1,
CONFIG_SHA256, CONFIG_SHA_HW_ACCEL, and CONFIG_SHA_PROG_HW_ACCEL.
However, no defconfig has migrated to it.  Complete the move by first
adding additional logic to various Kconfig files to select this when
required and then use the moveconfig tool.  In many cases we can select
these because they are required to implement other drivers.  We also
correct how we include the various hashing algorithms in SPL.

This commit was generated as follows (after Kconfig additions):

[1] tools/moveconfig.py -y SHA1 SHA256 SHA_HW_ACCEL
[2] tools/moveconfig.py -y SHA_PROG_HW_ACCEL

Note:
We cannot move SHA_HW_ACCEL and SHA_PROG_HW_ACCEL simultaneously
because there is dependency between them.

Cc: Poonam Aggrwal <poonam.aggrwal@freescale.com>
Cc: Naveen Burmi <NaveenBurmi@freescale.com>
Cc: Po Liu <po.liu@freescale.com>
Cc: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Cc: Priyanka Jain <Priyanka.Jain@freescale.com>
Cc: Shaohui Xie <Shaohui.Xie@freescale.com>
Cc: Chunhe Lan <Chunhe.Lan@freescale.com>
Cc: Chander Kashyap <k.chander@samsung.com>
Cc: Steve Rae <steve.rae@raedomain.com>
Cc: Dirk Eibach <eibach@gdsys.de>
Cc: Feng Li <feng.li_2@nxp.com>
Cc: Alison Wang <alison.wang@freescale.com>
Cc: Sumit Garg <sumit.garg@nxp.com>
Cc: Mingkai Hu <Mingkai.Hu@freescale.com>
Cc: York Sun <york.sun@nxp.com>
Cc: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Akshay Saraswat <akshay.s@samsung.com>
Cc: Heiko Schocher <hs@denx.de>
Cc: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
2017-05-22 08:36:58 -04:00
Ley Foon Tan
0680f1b1f7 Convert CONFIG_SPL_BOARD_INIT to Kconfig
This converts the following to Kconfig:
   CONFIG_SPL_BOARD_INIT

Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
[trini: Update the Kconfig logic]
Signed-off-by: Tom Rini <trini@konsulko.com>
2017-05-22 07:29:48 -04:00
Jagan Teki
671f458aae i.MX6UL: geam6ul: Add SETUP_IOMUX_PADS
Add generic SETUP_IOMUX_PADS function, for imx6ul mux pads.

Cc: Stefano Babic <sbabic@denx.de>
Cc: Matteo Lisi <matteo.lisi@engicam.com>
Cc: Michael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2017-05-18 11:23:31 +02:00
Siarhei Siamashka
7f0ef5a945 sunxi: Store the device tree name in the SPL header
This patch updates the mksunxiboot tool to optionally add
the default device tree name string to the SPL header. This
information can be used by the firmware upgrade tools to
protect users from harming themselves by trying to upgrade
to an incompatible bootloader.

The primary use case here is a non-removable bootable media
(such as NAND, eMMC or SPI flash), which already may have
a properly working, but a little bit outdated bootloader
installed. For example, the user may download or build a
new U-Boot image for "Cubieboard", and then attemept to
install it on a "Cubieboard2" hardware by mistake as a
replacement for the already existing bootloader. If this
happens, the flash programming tool can identify this
problem and warn the user.

The size of the SPL header is also increased from 64 bytes
to 96 bytes to provide enough space for the device tree name
string.
[Andre: split patch to remove OF_LIST hash feature]

Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2017-05-17 23:23:58 +05:30
Tom Rini
d09ec7f816 Merge branch 'master' of git://git.denx.de/u-boot-video 2017-05-15 20:16:02 -04:00
Jernej Skrabec
940aed8f6b sunxi: Add clock support for TV encoder
This patch adds support for TV encoder clocks which will be used later.

Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
2017-05-15 21:22:57 +02:00
Jernej Skrabec
c10806267d sunxi: video: Split out TVE code
Newer SoCs use same TV encoder unit. Split it out so it can be reused
with new DM video driver.

Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-15 21:22:24 +02:00
Tom Rini
cb33bda44f Merge branch 'master' of git://git.denx.de/u-boot-i2c 2017-05-15 13:01:26 -04:00
Tom Rini
8850c5d57c Kconfig: USB: Migrate CONFIG_USB_EHCI to CONFIG_USB_EHCI_HCD
In order to be able to migrate the various SoC EHCI CONFIG options we
first need to finish the switch from CONFIG_USB_EHCI to
CONFIG_USB_EHCI_HCD.

Cc: Marek Vasut <marex@denx.de>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Marek Vasut <marex@denx.de>
2017-05-15 10:40:05 -04:00
Tom Rini
d87f82967f omap5: Migrate CONFIG_OMAP_PLATFORM_RESET_TIME_MAX_USEC to Kconfig
While in theory this value could be used in places outside of "omap5"
(such as OMAP4), we only make use of it today in OMAP5, so place the
Kconfig entry there.  Given that Kconfig lets us provide a default, we
drop CONFIG_DEFAULT_OMAP_RESET_TIME_MAX_USEC entirely.  The contents of
doc/README.omap-reset-time make a good help entry, so adjust them
slightly and delete the file.  Move the comment about range to where we
use the value now, and have Kconfig enforce the upper bound.

Signed-off-by: Tom Rini <trini@konsulko.com>
2017-05-15 10:39:57 -04:00
Tom Rini
89024ddc9e TI: Drop 'CONFIG_OMAP'
In the two cases in the code where we use CONFIG_OMAP as a useful test
currently we can make use of CONFIG_ARCH_OMAP2PLUS instead.  With that
changed we can drop all defines of CONFIG_OMAP.  While in here,
CONFIG_OMAP3430 is only defined and then never used, so drop.

Signed-off-by: Tom Rini <trini@konsulko.com>
2017-05-15 10:39:56 -04:00
Simon Glass
eb5ba3aefd i2c: Drop use of CONFIG_I2C_HARD
This option is pretty old. It predates CONFIG_SYS_I2C which is itself
deprecated in favour of driver model. Disable it for all boards.

Also drop I2C options which depend on this.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-05-15 06:17:09 +02:00
Peng Fan
8fbbb6c27f arm: change tbu/l type to unsigned int
Change tbu/l type to unsigned int.
>From the timer file for arm,
"(((unsigned long long)gd->arch.tbu) << 32) | gd->arch.tbl;" is used,
This piece code is based on tbu/tbl is 32bits, so change the type to
unsigned int.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
2017-05-12 08:37:34 -04:00
Lokesh Vutla
fbd6295da4 arm: am33xx: Add support for mulitiple PLL input frequencies
am335x supports various sysclk frequencies which can be determined
using sysboot pins. PLLs should be configures based on this
sysclk frequency. Add PLL configurations for all supported
frequencies.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2017-05-12 08:37:14 -04:00
Lokesh Vutla
59041a5084 arm: am33xx: Fix MPU opp selection
Update MPU frequencies and voltages as per the latest
DM[1] dated: OCT 2011 Revised APRIL 2016, Section 5.4.
Below is the consolidated data:

MPU values for PG 2.0 and later(Package ZCZ and ZCE):

 -------------------------------------------------------
|	|	  ZCZ		|	  ZCE		|
|-------------------------------------------------------|
|	| VDD[V]   | ARM [MHz]	| VDD[V]   | ARM [MHz]  |
|-------|----------|------------|----------|------------|
| NITRO |  1.325   |   1000     |   NA     |    NA      |
|-------|----------|------------|----------|------------|
| TURBO |   1.26   |    800	|   NA     |    NA      |
|-------|----------|------------|----------|------------|
|OPP120 |   1.20   |    720     |   NA     |    NA      |
|-------|----------|------------|----------|------------|
|OPP100 |   1.10   |    600     |   1.10   |    600     |
|-------|----------|------------|----------|------------|
| OPP50 |   0.95   |    300     |   0.95   |    300     |
 -------------------------------------------------------

There is no eFuse blown on PG1.0 Silicons due to which there is
no way to detect the maximum frequencies supported. So default
to OPP100 for which both frequency and voltages are common on both
the packages.

[1] http://www.ti.com/lit/ds/symlink/am3356.pdf

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2017-05-12 08:37:12 -04:00
Lokesh Vutla
c187dd685a configs: convert CONFIG_SYS_MPUCLK to Kconfig
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2017-05-12 08:37:11 -04:00
Vikas Manocha
96b61ab15c armv7m: add MPU configuration support
Cortex-M archs support option memory protection unit (MPU). MPU is used
to set the memory types, attributes, access permissions for different regions,
cache policies of the device.

e.g. using MPU it is possible to configure memory region as device memory
or strongly ordered, memory attributes like execute never, cache policies
like write-back or write-through.

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
2017-05-12 08:37:06 -04:00
Vikas Manocha
df951c4039 armv7m: correct mpu region size define for 8MB size
Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
2017-05-12 08:37:05 -04:00
Lokesh Vutla
2558c04906 dm: mmc: omap_hsmmc: Update to support of-platdata
This is to aid platforms that uses OF_PLATDATA.

Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2017-05-11 22:21:27 -04:00
Simon Glass
6775a8208e arm: Support cache invalidate
At present there is not operation to invalidate a cache range. This seems
to be needed to fill out the cache operations. Add an implementation based
on the flush operation.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: York Sun <york.sun@nxp.com>
2017-05-11 22:03:39 -04:00
Eric Gao
9b534ba001 rockchip: rk3288: grf: Add grf define for mipi dsi
Add grf register define for rk3288 mipi dsi

Signed-off-by: Eric Gao <eric.gao@rock-chips.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-10 13:37:22 -06:00
Eric Gao
9f819931e0 rockchip: video: vop: Add mipi display mode for rk3399
Add mipi display mode for rk3399 vop, so that we can use mipi panel
for display.

Signed-off-by: Eric Gao <eric.gao@rock-chips.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-10 13:37:22 -06:00
Eric Gao
1c3984041c rockchip: video: Add mipi driver support for rockchip soc
Add basic driver for mipi display on rockchip soc platform.

Signed-off-by: Eric Gao <eric.gao@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
2017-05-10 13:37:22 -06:00
Eric Gao
858f6368af rockchip: include: grf: Add GRF register declaration for mipi dsi
Add GRF register declaration for mipi dsi.

Signed-off-by: Eric Gao <eric.gao@rock-chips.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-05-10 13:37:22 -06:00
Philipp Tomsich
26e2e404b7 rockchip: pinctrl: rk3399: add support for the HDMI I2C pins
To add HDMI support for the RK3399, this commit provides the needed
pinctrl functionality to configure the HDMI I2C pins (used for reading
the screen's EDID).

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-10 13:37:21 -06:00
Kever Yang
fa1392a236 rockchip: reserve memory for rk3399 ATF data
There are 3 regions used by rk3399 ATF:
- bl31 code, located at 0x10000;
- cortex-m0 code and data, located at 0xff8c0000;
- bl31 data, located at 0xff8c1000 ~ 0xff8c4000;

SPL_TEXT_BASE starts from 0xff8c2000, we need to reserve memory
for ATF data, or else there will be memory corrupt after SPL
loads the ATF image.

More detail about cortex-M0 code in ATF:
https://github.com/ARM-software/arm-trusted-firmware/commit/
8382e17c4c6bffd15119dfce1ee4372e3c1a7890

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
2017-05-10 13:37:21 -06:00
Kever Yang
602778d3c7 rockchip: pinctrl: rk3399: add gmac io strength support
GMAC controller need to init the tx io driver strength to 13mA,
just like the description in dts pinctrl node, or else the controller
may only work in 100MHz Mode, and fail to work at 1000MHz mode.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com <mailto:philipp.tomsich@theobroma-systems.com>>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-10 13:37:21 -06:00
Philipp Tomsich
315e6a38f9 rockchip: pinctrl: rk3399: add support for the SPI5 controller
This commit adds support for the pin-configuration of the SPI5
controller of the RK3399 through the following changes:
 * grf_rk3399.h: adds definition for configuring the SPI5 pins
   		 in the GPIO2C group
 * periph.h: defines PERIPH_ID_SPI3 through PERIPH_ID_SPI5
 * pinctrl_rk3399.c: adds the reverse-mapping from the IRQ# to
   		     PERIPH_ID_SPI5; dispatches PERIPH_ID_SPI3
		     through SPI5 to the appropriate pin-config
		     function; implements the pin-configuration
		     for PERIPH_ID_SPI5 using the GPIO2C group

X-AffectedPlatforms: RK3399-Q7
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Jakob Unterwurzacher <jakob.unterwurzacher@theobroma-systems.com>
Acked-by: Simon Glass <sjg@chromium.org>
2017-05-10 13:37:21 -06:00
Adam Ford
46831c1a4c omap_hsmmc: update struct hsmmc to accommodate omap3 from DT
This patch changes the way DM_MMC calculates offset to the base register of
MMC. Previously this was through an #ifdef but that wasn't necessary for OMAP3.

This patch will now add in the offset to the base address based on the
.compatible flags.

Signed-off-by: Adam Ford <aford173@gmail.com>

V2: Remove ifdef completely and reference offset from the omap_hsmmc_ids table.

V1: Change ifdef to ignore OMAP3
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-09 20:35:35 -04:00
Tom Rini
a6d4cd4778 Merge branch 'master' of git://git.denx.de/u-boot-sunxi 2017-05-08 15:44:44 -04:00
maxims@google.com
defb184904 aspeed: Refactor SCU to use consistent mask & shift
Refactor SCU header to use consistent Mask & Shift values.
Now, consistently, to read value from SCU register, mask needs
to be applied before shift.

Signed-off-by: Maxim Sloyko <maxims@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-08 11:57:35 -04:00
maxims@google.com
3b95902d47 aspeed: Add support for Clocks needed by MACs
Add support for clocks needed by MACs to ast2500 clock driver.
The clocks are D2-PLL, which is used by both MACs and PCLK_MAC1 and
PCLK_MAC2 for MAC1 and MAC2 respectively.

The rate of D2-PLL is hardcoded to 250MHz -- the value used in Aspeed
SDK. It is not entirely clear from the datasheet how this clock is used
by MACs, so not clear if the rate would ever need to be different. So,
for now, hardcoding it is probably safer.

The rate of PCLK_MAC{1,2} is chosen based on MAC speed selected through
hardware strapping.

So, the network driver would only need to enable these clocks, no need
to configure the rate.

Signed-off-by: Maxim Sloyko <maxims@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-08 11:57:35 -04:00
maxims@google.com
4999bb06cc aspeed: Add P-Bus clock in ast2500 clock driver
Add P-Bus Clock support to ast2500 clock driver.
This is the clock used by I2C devices.

Signed-off-by: Maxim Sloyko <maxims@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-08 11:57:34 -04:00