This patch provides a way to enable the GPMC limited addressing mode which is needed to access nonmultiplexed devices. Signed-off-by: Raphael Assenat <raph@xxxxxx> diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c index 130034b..521944a 100644 --- a/arch/arm/mach-omap2/gpmc.c +++ b/arch/arm/mach-omap2/gpmc.c @@ -540,6 +540,15 @@ int gpmc_cs_configure(int cs, int cmd, int wval) gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, regval); break; + case GPMC_EN_LIMITEDADDRESS: + regval = gpmc_read_reg(GPMC_CONFIG); + if (wval) + regval |= GPMC_CONFIG_LIMITEDADDRESS; + else + regval &= ~GPMC_CONFIG_LIMITEDADDRESS; + gpmc_write_reg(GPMC_CONFIG, regval); + break; + default: printk(KERN_ERR "gpmc_configure_cs: Not supported\n"); err = -EINVAL; diff --git a/arch/arm/plat-omap/include/plat/gpmc.h b/arch/arm/plat-omap/include/plat/gpmc.h index 1527929..7fdbbb8 100644 --- a/arch/arm/plat-omap/include/plat/gpmc.h +++ b/arch/arm/plat-omap/include/plat/gpmc.h @@ -42,6 +42,7 @@ #define GPMC_NAND_DATA 0x0000000c #define GPMC_ENABLE_IRQ 0x0000000d +#define GPMC_EN_LIMITEDADDRESS 0x0000000e /* ECC commands */ #define GPMC_ECC_READ 0 /* Reset Hardware ECC for read */ @@ -75,6 +76,7 @@ #define GPMC_DEVICETYPE_NOR 0 #define GPMC_DEVICETYPE_NAND 2 +#define GPMC_CONFIG_LIMITEDADDRESS 0x00000002 #define GPMC_CONFIG_WRITEPROTECT 0x00000010 #define GPMC_STATUS_BUFF_EMPTY 0x00000001 #define WR_RD_PIN_MONITORING 0x00600000 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
