Explicitly set the dr_mode for the second dwc3 controller on the
Arndale Octa board to host mode. This is required to ensure the
controller is initialized in the right mode if the kernel is build
with USB gadget support.
Reported-By: NAndreas Faerber <afaerber@suse.de>
Signed-off-by: NSjoerd Simons <sjoerd.simons@collabora.co.uk>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Regulators for MMC2 (SD card) are PVDD_TFLASH_2V8 (LDO19) for vmmc
and PVDD_APIO_MMCOFF_2V8 (LDO13) for vqmmc.  Currently the device
tree entry for MMC2 uses PVDD_PRE_1V8 (LDO10) for vmmc and vqmmc is
not specified.  Fix it.

Without this patch:
- "mmc: dw_mmc: use mmc_regulator_get_supply to handle regulators"
  patch causes a SD card detection to fail
- "mmc: dw_mmc: Support voltage changes" patch causes a boot hang

This patch fixes both above problems.
Suggested-by: NDoug Anderson <dianders@google.com>
Cc: Yuvaraj Kumar C D <yuvaraj.cd@samsung.com>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: NBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: NKyungmin Park <kyungmin.park@samsung.com>
Fixes: 01730558 ("mmc: dw_mmc: Support voltage changes")
Acked-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>

dw-mmc controller can support multiple slots.
But, there are no use-cases anywhere. So we don't need to support the
slot-node for dw-mmc controller.
And "supports-highspeed" property in dw-mmc is deprecated.
"supports-highspeed" property can be replaced with "cap-sd/mmc-highspeed".
Signed-off-by: NJaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: NTushar Behera <trblinux@gmail.com>
Reviewed-by: NUlf Hansson <ulf.hansson@linaro.org>
Tested-by: NSachin Kamat <sachin.kamat@samsung.com>
[kgene.kim@samsung.com: rebased exynos5250-snow changes]
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Arndale-Octa board is always configured to work with trustzone
firmware binary. Added DTS node entry to enable this support.
Signed-off-by: NTushar Behera <tushar.behera@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Add MFC memory banks to Exynos5420 based SMDK and Arndale-octa boards.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

This change places MDMA1 in disabled node for Exynos5420.
If MDMA1 region is configured with secure mode, it makes
the boot failure with the following on smdk5420 board.
("Unhandled fault: imprecise external abort (0x1406) at 0x00000000")
Thus, arndale-octa board don't need to do the same thing anymore.
Signed-off-by: NSeungwon Jeon <tgih.jun@samsung.com>
Tested-by: NJavi Merino <javi.merino@arm.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

LDO3 and LDO23 need to be enabled in order for soft-reset to work.
Additionally LDO9 needs to be enabled for USB operations.
Signed-off-by: NTushar Behera <tushar.behera@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

MDMA1 can support both secure and non-secure AXI transactions. When this
is enabled in the kernel for boards that run in secure mode, we get
imprecise external aborts causing the kernel to oops.

Unhandled fault: imprecise external abort (0x1406) at 0x00000000
Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000007
Suggested-by: NJavi Merino <javi.merino@arm.com>
Signed-off-by: NTushar Behera <tushar.behera@linaro.org>
Tested-by: NJavi Merino <javi.merino@arm.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Add generic compatible strings to the respective board DT files.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Acked-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

LDO10 is directly connected to MMC controller. Register this
through vmmc-supply property.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Added GPIO based wake up key to Arndale octa board.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Some boards might not have RTC xtal, so RTC shouldn't really be
enabled by default. Enable it in the required board files.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Reviewed-by: NTomasz Figa <t.figa@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

Arndale Octa board is based on Exynos5420 SoC. This patch
adds the basic support required for booting it through DT.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Reviewed-by: NTomasz Figa <t.figa@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>