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>
diff --git a/arch/arm/mach-omap2/omap-mpuss-lowpower.c b/arch/arm/mach-omap2/omap-mpuss-lowpower.c
index 667915d..eb76e47 100644
--- a/arch/arm/mach-omap2/omap-mpuss-lowpower.c
+++ b/arch/arm/mach-omap2/omap-mpuss-lowpower.c
@@ -116,7 +116,7 @@
{
struct omap4_cpu_pm_info *pm_info = &per_cpu(omap4_pm_info, cpu_id);
- __raw_writel(addr, pm_info->wkup_sar_addr);
+ writel_relaxed(addr, pm_info->wkup_sar_addr);
}
/*
@@ -141,7 +141,7 @@
break;
}
- __raw_writel(scu_pwr_st, pm_info->scu_sar_addr);
+ writel_relaxed(scu_pwr_st, pm_info->scu_sar_addr);
}
/* Helper functions for MPUSS OSWR */
@@ -179,7 +179,7 @@
{
struct omap4_cpu_pm_info *pm_info = &per_cpu(omap4_pm_info, cpu_id);
- __raw_writel(save_state, pm_info->l2x0_sar_addr);
+ writel_relaxed(save_state, pm_info->l2x0_sar_addr);
}
/*
@@ -192,10 +192,10 @@
u32 val;
void __iomem *l2x0_base = omap4_get_l2cache_base();
if (l2x0_base) {
- val = __raw_readl(l2x0_base + L2X0_AUX_CTRL);
- __raw_writel(val, sar_base + L2X0_AUXCTRL_OFFSET);
- val = __raw_readl(l2x0_base + L2X0_PREFETCH_CTRL);
- __raw_writel(val, sar_base + L2X0_PREFETCH_CTRL_OFFSET);
+ val = readl_relaxed(l2x0_base + L2X0_AUX_CTRL);
+ writel_relaxed(val, sar_base + L2X0_AUXCTRL_OFFSET);
+ val = readl_relaxed(l2x0_base + L2X0_PREFETCH_CTRL);
+ writel_relaxed(val, sar_base + L2X0_PREFETCH_CTRL_OFFSET);
}
}
#else
@@ -386,9 +386,9 @@
/* Save device type on scratchpad for low level code to use */
if (omap_type() != OMAP2_DEVICE_TYPE_GP)
- __raw_writel(1, sar_base + OMAP_TYPE_OFFSET);
+ writel_relaxed(1, sar_base + OMAP_TYPE_OFFSET);
else
- __raw_writel(0, sar_base + OMAP_TYPE_OFFSET);
+ writel_relaxed(0, sar_base + OMAP_TYPE_OFFSET);
save_l2x0_context();