From: Chris Morgan macromorgan@hotmail.com
This patch adds support for setting the correct pin configuration for the Rockchip Serial Flash Controller found on the PX30.
Signed-off-by: Chris Morgan macromorgan@hotmail.com --- arch/arm/mach-rockchip/px30/px30.c | 64 ++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+)
diff --git a/arch/arm/mach-rockchip/px30/px30.c b/arch/arm/mach-rockchip/px30/px30.c index 6fcef63c1b..8674e815da 100644 --- a/arch/arm/mach-rockchip/px30/px30.c +++ b/arch/arm/mach-rockchip/px30/px30.c @@ -51,6 +51,57 @@ struct mm_region *mem_map = px30_mem_map;
#define QOS_PRIORITY_LEVEL(h, l) ((((h) & 3) << 8) | ((l) & 3))
+/* GRF_GPIO1AL_IOMUX */ +enum { + GPIO1A3_SHIFT = 12, + GPIO1A3_MASK = 0xf << GPIO1A3_SHIFT, + GPIO1A3_GPIO = 0, + GPIO1A3_FLASH_D3, + GPIO1A3_EMMC_D3, + GPIO1A3_SFC_SIO3, + + GPIO1A2_SHIFT = 8, + GPIO1A2_MASK = 0xf << GPIO1A2_SHIFT, + GPIO1A2_GPIO = 0, + GPIO1A2_FLASH_D2, + GPIO1A2_EMMC_D2, + GPIO1A2_SFC_SIO2, + + GPIO1A1_SHIFT = 4, + GPIO1A1_MASK = 0xf << GPIO1A1_SHIFT, + GPIO1A1_GPIO = 0, + GPIO1A1_FLASH_D1, + GPIO1A1_EMMC_D1, + GPIO1A1_SFC_SIO1, + + GPIO1A0_SHIFT = 0, + GPIO1A0_MASK = 0xf << GPIO1A0_SHIFT, + GPIO1A0_GPIO = 0, + GPIO1A0_FLASH_D0, + GPIO1A0_EMMC_D0, + GPIO1A0_SFC_SIO0, +}; + +/* GRF_GPIO1AH_IOMUX */ +enum { + GPIO1A4_SHIFT = 0, + GPIO1A4_MASK = 0xf << GPIO1A4_SHIFT, + GPIO1A4_GPIO = 0, + GPIO1A4_FLASH_D4, + GPIO1A4_EMMC_D4, + GPIO1A4_SFC_CSN0, +}; + +/* GRF_GPIO1BL_IOMUX */ +enum { + GPIO1B1_SHIFT = 4, + GPIO1B1_MASK = 0xf << GPIO1B1_SHIFT, + GPIO1B1_GPIO = 0, + GPIO1B1_FLASH_RDY, + GPIO1B1_EMMC_CLKOUT, + GPIO1B1_SFC_CLK, +}; + /* GRF_GPIO1BH_IOMUX */ enum { GPIO1B7_SHIFT = 12, @@ -193,6 +244,19 @@ int arch_cpu_init(void) GPIO1D4_SDMMC_D2 << GPIO1D4_SHIFT); #endif
+#ifdef CONFIG_ROCKCHIP_SFC + rk_clrsetreg(&grf->gpio1al_iomux, + GPIO1A3_MASK | GPIO1A2_MASK | GPIO1A1_MASK | GPIO1A0_MASK, + GPIO1A3_SFC_SIO3 << GPIO1A3_SHIFT | + GPIO1A2_SFC_SIO2 << GPIO1A2_SHIFT | + GPIO1A1_SFC_SIO1 << GPIO1A1_SHIFT | + GPIO1A0_SFC_SIO0 << GPIO1A0_SHIFT); + rk_clrsetreg(&grf->gpio1ah_iomux, GPIO1A4_MASK, + GPIO1A4_SFC_CSN0 << GPIO1A4_SHIFT); + rk_clrsetreg(&grf->gpio1bl_iomux, GPIO1B1_MASK, + GPIO1B1_SFC_CLK << GPIO1B1_SHIFT); +#endif + #endif
/* Enable PD_VO (default disable at reset) */