[RFC PATCH 13/15] memory: samsung: endian fixes for IO

From: Matthew Leach
Date: Wed Jun 08 2016 - 14:32:58 EST


From: Ben Dooks <ben.dooks@xxxxxxxxxxxxxxx>

Use the relaxed versions of the IO accessors to avoid any issues
if running in big endian.

Signed-off-by: Ben Dooks <ben.dooks@xxxxxxxxxxxxxxx>
---
Cc: Pavel Fedin <p.fedin@xxxxxxxxxxx>
Cc: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>
Cc: Pankaj Dubey <pankaj.dubey@xxxxxxxxxxx>
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxxxx
---
drivers/memory/samsung/exynos-srom.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/memory/samsung/exynos-srom.c b/drivers/memory/samsung/exynos-srom.c
index 96756fb..ac8f79c 100644
--- a/drivers/memory/samsung/exynos-srom.c
+++ b/drivers/memory/samsung/exynos-srom.c
@@ -91,11 +91,11 @@ static int exynos_srom_configure_bank(struct exynos_srom *srom,
if (width == 2)
cs |= 1 << EXYNOS_SROM_BW__DATAWIDTH__SHIFT;

- bw = __raw_readl(srom->reg_base + EXYNOS_SROM_BW);
+ bw = readl_relaxed(srom->reg_base + EXYNOS_SROM_BW);
bw = (bw & ~(EXYNOS_SROM_BW__CS_MASK << bank)) | (cs << bank);
- __raw_writel(bw, srom->reg_base + EXYNOS_SROM_BW);
+ writel_relaxed(bw, srom->reg_base + EXYNOS_SROM_BW);

- __raw_writel(pmc | (timing[0] << EXYNOS_SROM_BCX__TACP__SHIFT) |
+ writel_relaxed(pmc | (timing[0] << EXYNOS_SROM_BCX__TACP__SHIFT) |
(timing[1] << EXYNOS_SROM_BCX__TCAH__SHIFT) |
(timing[2] << EXYNOS_SROM_BCX__TCOH__SHIFT) |
(timing[3] << EXYNOS_SROM_BCX__TACC__SHIFT) |
--
2.8.3