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| author | Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2015-06-16 14:12:57 +0200 |
|---|---|---|
| committer | Gregory CLEMENT <gregory.clement@free-electrons.com> | 2015-06-17 17:23:36 +0200 |
| commit | 2f5bc307be2480ba89e4c5d118f406f04a4a7299 (patch) | |
| tree | cb54687d81888c61ef79d83bf4b9f1fb7e19d549 /arch/arm/mach-mvebu/pm-board.c | |
| parent | Revert "bus: mvebu-mbus: make sure SDRAM CS for DMA don't overlap the MBus br... (diff) | |
| download | linux-2f5bc307be2480ba89e4c5d118f406f04a4a7299.tar.xz linux-2f5bc307be2480ba89e4c5d118f406f04a4a7299.zip | |
ARM: mvebu: fix suspend to RAM on big-endian configurations
The current Armada XP suspend to RAM implementation, as added in
commit 27432825ae19f ("ARM: mvebu: Armada XP GP specific
suspend/resume code") does not handle big-endian configurations
properly: the small bit of assembly code putting the DRAM in
self-refresh and toggling the GPIOs to turn off power forgets to
convert the values to little-endian.
This commit fixes that by making sure the two values we will write to
the DRAM controller register and GPIO register are already in
little-endian before entering the critical assembly code.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: <stable@vger.kernel.org> # v3.19+
Fixes: 27432825ae19f ("ARM: mvebu: Armada XP GP specific suspend/resume code")
Diffstat (limited to 'arch/arm/mach-mvebu/pm-board.c')
| -rw-r--r-- | arch/arm/mach-mvebu/pm-board.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/mach-mvebu/pm-board.c b/arch/arm/mach-mvebu/pm-board.c index 6dfd4ab97b2a..301ab38d38ba 100644 --- a/arch/arm/mach-mvebu/pm-board.c +++ b/arch/arm/mach-mvebu/pm-board.c @@ -43,6 +43,9 @@ static void mvebu_armada_xp_gp_pm_enter(void __iomem *sdram_reg, u32 srcmd) for (i = 0; i < ARMADA_XP_GP_PIC_NR_GPIOS; i++) ackcmd |= BIT(pic_raw_gpios[i]); + srcmd = cpu_to_le32(srcmd); + ackcmd = cpu_to_le32(ackcmd); + /* * Wait a while, the PIC needs quite a bit of time between the * two GPIO commands. |