diff options
| -rw-r--r-- | arch/arm/cpu/armv7/am33xx/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/include/asm/omap_elm.h (renamed from arch/arm/include/asm/arch-am33xx/elm.h) | 0 | ||||
| -rw-r--r-- | doc/README.nand | 19 | ||||
| -rw-r--r-- | drivers/mtd/nand/Makefile | 1 | ||||
| -rw-r--r-- | drivers/mtd/nand/omap_elm.c (renamed from arch/arm/cpu/armv7/am33xx/elm.c) | 6 | ||||
| -rw-r--r-- | drivers/mtd/nand/omap_gpmc.c | 2 | ||||
| -rw-r--r-- | include/configs/am335x_evm.h | 2 | ||||
| -rw-r--r-- | include/configs/am335x_igep0033.h | 1 | ||||
| -rw-r--r-- | include/configs/siemens-am33x-common.h | 1 |
9 files changed, 28 insertions, 5 deletions
diff --git a/arch/arm/cpu/armv7/am33xx/Makefile b/arch/arm/cpu/armv7/am33xx/Makefile index 966fcab71..5566310d9 100644 --- a/arch/arm/cpu/armv7/am33xx/Makefile +++ b/arch/arm/cpu/armv7/am33xx/Makefile @@ -19,4 +19,3 @@ obj-y += ddr.o obj-y += emif4.o obj-y += board.o obj-y += mux.o -obj-$(CONFIG_NAND_OMAP_GPMC) += elm.o diff --git a/arch/arm/include/asm/arch-am33xx/elm.h b/arch/arm/include/asm/omap_elm.h index 45454eaf0..45454eaf0 100644 --- a/arch/arm/include/asm/arch-am33xx/elm.h +++ b/arch/arm/include/asm/omap_elm.h diff --git a/doc/README.nand b/doc/README.nand index 3a507b6c8..ce7ea5e1e 100644 --- a/doc/README.nand +++ b/doc/README.nand @@ -179,6 +179,25 @@ Configuration Options: Please convert your driver even if you don't need the extra flexibility, so that one day we can eliminate the old mechanism. + +Platform specific options +========================= + CONFIG_NAND_OMAP_GPMC + Enables omap_gpmc.c driver for OMAPx and AMxxxx platforms. + GPMC controller is used for parallel NAND flash devices, and can + do ECC calculation (not ECC error detection) for HAM1, BCH4, BCH8 + and BCH16 ECC algorithms. + + CONFIG_NAND_OMAP_ELM + Enables omap_elm.c driver for OMAPx and AMxxxx platforms. + ELM controller is used for ECC error detection (not ECC calculation) + of BCH4, BCH8 and BCH16 ECC algorithms. + Some legacy platforms like OMAP3xx do not have in-built ELM h/w engine, + thus such SoC platforms need to depend on software library for ECC error + detection. However ECC calculation on such plaforms would still be + done by GPMC controller. + + NOTE: ===== diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile index eb1eafaf0..e145cd184 100644 --- a/drivers/mtd/nand/Makefile +++ b/drivers/mtd/nand/Makefile @@ -58,6 +58,7 @@ obj-$(CONFIG_NAND_S3C2410) += s3c2410_nand.o obj-$(CONFIG_NAND_SPEAR) += spr_nand.o obj-$(CONFIG_TEGRA_NAND) += tegra_nand.o obj-$(CONFIG_NAND_OMAP_GPMC) += omap_gpmc.o +obj-$(CONFIG_NAND_OMAP_ELM) += omap_elm.o obj-$(CONFIG_NAND_PLAT) += nand_plat.o obj-$(CONFIG_NAND_DOCG4) += docg4.o diff --git a/arch/arm/cpu/armv7/am33xx/elm.c b/drivers/mtd/nand/omap_elm.c index 8f1d6afdd..2aa7807f3 100644 --- a/arch/arm/cpu/armv7/am33xx/elm.c +++ b/drivers/mtd/nand/omap_elm.c @@ -18,7 +18,7 @@ #include <asm/errno.h> #include <asm/arch/cpu.h> #include <asm/omap_gpmc.h> -#include <asm/arch/elm.h> +#include <asm/omap_elm.h> #define ELM_DEFAULT_POLY (0) @@ -127,7 +127,7 @@ int elm_check_error(u8 *syndrome, u32 nibbles, u32 *error_count, for (i = 0; i < *error_count; i++) { error_locations[i] = - readl(&elm_cfg->error_location[poly].error_location_x[i]); + readl(&elm_cfg->error_location[poly].error_location_x[i]); } return 0; @@ -175,7 +175,7 @@ void elm_reset(void) { /* initiate reset */ writel((readl(&elm_cfg->sysconfig) | ELM_SYSCONFIG_SOFTRESET), - &elm_cfg->sysconfig); + &elm_cfg->sysconfig); /* wait for reset complete and normal operation */ while ((readl(&elm_cfg->sysstatus) & ELM_SYSSTATUS_RESETDONE) != diff --git a/drivers/mtd/nand/omap_gpmc.c b/drivers/mtd/nand/omap_gpmc.c index ec1787f22..c8288597a 100644 --- a/drivers/mtd/nand/omap_gpmc.c +++ b/drivers/mtd/nand/omap_gpmc.c @@ -16,7 +16,7 @@ #include <linux/compiler.h> #include <nand.h> #ifdef CONFIG_AM33XX -#include <asm/arch/elm.h> +#include <asm/omap_elm.h> #endif static uint8_t cs; diff --git a/include/configs/am335x_evm.h b/include/configs/am335x_evm.h index c2ba7e35d..73d8b4dfb 100644 --- a/include/configs/am335x_evm.h +++ b/include/configs/am335x_evm.h @@ -221,6 +221,8 @@ #define CONFIG_SPL_LDSCRIPT "$(CPUDIR)/am33xx/u-boot-spl.lds" #ifdef CONFIG_NAND +#define CONFIG_NAND_OMAP_GPMC +#define CONFIG_NAND_OMAP_ELM #define CONFIG_SYS_NAND_5_ADDR_CYCLE #define CONFIG_SYS_NAND_PAGE_COUNT (CONFIG_SYS_NAND_BLOCK_SIZE / \ CONFIG_SYS_NAND_PAGE_SIZE) diff --git a/include/configs/am335x_igep0033.h b/include/configs/am335x_igep0033.h index 2c69d4e30..88ced7311 100644 --- a/include/configs/am335x_igep0033.h +++ b/include/configs/am335x_igep0033.h @@ -187,6 +187,7 @@ /* NAND support */ #define CONFIG_NAND #define CONFIG_NAND_OMAP_GPMC +#define CONFIG_NAND_OMAP_ELM #define GPMC_NAND_ECC_LP_x16_LAYOUT 1 #define CONFIG_SYS_NAND_BASE (0x08000000) /* phys address CS0 */ #define CONFIG_SYS_MAX_NAND_DEVICE 1 diff --git a/include/configs/siemens-am33x-common.h b/include/configs/siemens-am33x-common.h index 9eb0a04da..f3b41975c 100644 --- a/include/configs/siemens-am33x-common.h +++ b/include/configs/siemens-am33x-common.h @@ -431,6 +431,7 @@ "\0" #define CONFIG_NAND_OMAP_GPMC +#define CONFIG_NAND_OMAP_ELM #define GPMC_NAND_ECC_LP_x16_LAYOUT 1 #define CONFIG_SYS_NAND_BASE (0x08000000) /* physical address */ /* to access nand at */ |