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authorVictor Kamensky <victor.kamensky@linaro.org>2014-04-15 19:37:46 +0200
committerTony Lindgren <tony@atomide.com>2014-05-08 16:09:53 +0200
commitedfaf05c2fcb853fcf35f12aeb9c340f5913337f (patch)
treef3d0d7ca941855237953f65680932a8a433b0ed4 /arch/arm/mach-omap2/gpmc.c
parentLinux 3.15-rc4 (diff)
downloadlinux-edfaf05c2fcb853fcf35f12aeb9c340f5913337f.tar.xz
linux-edfaf05c2fcb853fcf35f12aeb9c340f5913337f.zip
ARM: OMAP2+: raw read and write endian fix
All OMAP IP blocks expect LE data, but CPU may operate in BE mode. Need to use endian neutral functions to read/write h/w registers. I.e instead of __raw_read[lw] and __raw_write[lw] functions code need to use read[lw]_relaxed and write[lw]_relaxed functions. If the first simply reads/writes register, the second will byteswap it if host operates in BE mode. Changes are trivial sed like replacement of __raw_xxx functions with xxx_relaxed variant. Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org> Signed-off-by: Taras Kondratiuk <taras.kondratiuk@linaro.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/mach-omap2/gpmc.c')
-rw-r--r--arch/arm/mach-omap2/gpmc.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
index 9fe8c949305c..852b19a367f0 100644
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -170,12 +170,12 @@ static irqreturn_t gpmc_handle_irq(int irq, void *dev);
static void gpmc_write_reg(int idx, u32 val)
{
- __raw_writel(val, gpmc_base + idx);
+ writel_relaxed(val, gpmc_base + idx);
}
static u32 gpmc_read_reg(int idx)
{
- return __raw_readl(gpmc_base + idx);
+ return readl_relaxed(gpmc_base + idx);
}
void gpmc_cs_write_reg(int cs, int idx, u32 val)
@@ -183,7 +183,7 @@ void gpmc_cs_write_reg(int cs, int idx, u32 val)
void __iomem *reg_addr;
reg_addr = gpmc_base + GPMC_CS0_OFFSET + (cs * GPMC_CS_SIZE) + idx;
- __raw_writel(val, reg_addr);
+ writel_relaxed(val, reg_addr);
}
static u32 gpmc_cs_read_reg(int cs, int idx)
@@ -191,7 +191,7 @@ static u32 gpmc_cs_read_reg(int cs, int idx)
void __iomem *reg_addr;
reg_addr = gpmc_base + GPMC_CS0_OFFSET + (cs * GPMC_CS_SIZE) + idx;
- return __raw_readl(reg_addr);
+ return readl_relaxed(reg_addr);
}
/* TODO: Add support for gpmc_fck to clock framework and use it */