diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-imx/imx6.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/arm/mach-imx/imx6.c b/arch/arm/mach-imx/imx6.c index db1530c1d0..0c7338d0b5 100644 --- a/arch/arm/mach-imx/imx6.c +++ b/arch/arm/mach-imx/imx6.c @@ -210,11 +210,15 @@ int imx6_devices_init(void) static int imx6_mmu_init(void) { void __iomem *l2x0_base = IOMEM(0x00a02000); - u32 val; + u32 val, cache_part, cache_rtl; if (!cpu_is_mx6()) return 0; + val = readl(l2x0_base + L2X0_CACHE_ID); + cache_part = val & L2X0_CACHE_ID_PART_MASK; + cache_rtl = val & L2X0_CACHE_ID_RTL_MASK; + /* configure the PREFETCH register */ val = readl(l2x0_base + L2X0_PREFETCH_CTRL); val |= L2X0_DOUBLE_LINEFILL_EN | @@ -230,7 +234,8 @@ static int imx6_mmu_init(void) * Workaround: The only workaround to this erratum is to disable the * double linefill feature. This is the default behavior. */ - if (cpu_is_mx6q()) + if (cache_part == L2X0_CACHE_ID_PART_L310 && + cache_rtl < L2X0_CACHE_ID_RTL_R3P2) val &= ~(L2X0_DOUBLE_LINEFILL_EN | L2X0_INCR_DOUBLE_LINEFILL_EN); |