diff options
Diffstat (limited to 'include/configs/canyonlands.h')
| -rw-r--r-- | include/configs/canyonlands.h | 89 |
1 files changed, 81 insertions, 8 deletions
diff --git a/include/configs/canyonlands.h b/include/configs/canyonlands.h index e244c87..b1b4709 100644 --- a/include/configs/canyonlands.h +++ b/include/configs/canyonlands.h @@ -114,6 +114,65 @@ #else #define CFG_ENV_IS_IN_NAND 1 /* use NAND for environment vars */ #define CFG_NAND_CS 0 /* NAND chip connected to CSx */ +#define CFG_ENV_IS_EMBEDDED 1 /* use embedded environment */ +#endif + +/* + * IPL (Initial Program Loader, integrated inside CPU) + * Will load first 4k from NAND (SPL) into cache and execute it from there. + * + * SPL (Secondary Program Loader) + * Will load special U-Boot version (NUB) from NAND and execute it. This SPL + * has to fit into 4kByte. It sets up the CPU and configures the SDRAM + * controller and the NAND controller so that the special U-Boot image can be + * loaded from NAND to SDRAM. + * + * NUB (NAND U-Boot) + * This NAND U-Boot (NUB) is a special U-Boot version which can be started + * from RAM. Therefore it mustn't (re-)configure the SDRAM controller. + * + * On 440EPx the SPL is copied to SDRAM before the NAND controller is + * set up. While still running from cache, I experienced problems accessing + * the NAND controller. sr - 2006-08-25 + */ +#define CFG_NAND_BOOT_SPL_SRC 0xfffff000 /* SPL location */ +#define CFG_NAND_BOOT_SPL_SIZE (4 << 10) /* SPL size */ +#define CFG_NAND_BOOT_SPL_DST (CFG_OCM_BASE + (12 << 10)) /* Copy SPL here */ +#define CFG_NAND_U_BOOT_DST 0x01000000 /* Load NUB to this addr */ +#define CFG_NAND_U_BOOT_START CFG_NAND_U_BOOT_DST /* Start NUB from */ + /* this addr */ +#define CFG_NAND_BOOT_SPL_DELTA (CFG_NAND_BOOT_SPL_SRC - CFG_NAND_BOOT_SPL_DST) + +/* + * Define the partitioning of the NAND chip (only RAM U-Boot is needed here) + */ +#define CFG_NAND_U_BOOT_OFFS (16 << 10) /* Offset to RAM U-Boot image */ +#define CFG_NAND_U_BOOT_SIZE (384 << 10) /* Size of RAM U-Boot image */ + +/* + * Now the NAND chip has to be defined (no autodetection used!) + */ +#define CFG_NAND_PAGE_SIZE 512 /* NAND chip page size */ +#define CFG_NAND_BLOCK_SIZE (16 << 10) /* NAND chip block size */ +#define CFG_NAND_PAGE_COUNT 32 /* NAND chip page count */ +#define CFG_NAND_BAD_BLOCK_POS 5 /* Location of bad block marker */ +#undef CFG_NAND_4_ADDR_CYCLE /* No fourth addr used (<=32MB) */ + +#define CFG_NAND_ECCSIZE 256 +#define CFG_NAND_ECCBYTES 3 +#define CFG_NAND_ECCSTEPS (CFG_NAND_PAGE_SIZE / CFG_NAND_ECCSIZE) +#define CFG_NAND_OOBSIZE 16 +#define CFG_NAND_ECCTOTAL (CFG_NAND_ECCBYTES * CFG_NAND_ECCSTEPS) +#define CFG_NAND_ECCPOS {0, 1, 2, 3, 6, 7} + +#ifdef CFG_ENV_IS_IN_NAND +/* + * For NAND booting the environment is embedded in the U-Boot image. Please take + * look at the file board/amcc/canyonlands/u-boot-nand.lds for details. + */ +#define CFG_ENV_SIZE CFG_NAND_BLOCK_SIZE +#define CFG_ENV_OFFSET (CFG_NAND_U_BOOT_OFFS + CFG_ENV_SIZE) +#define CFG_ENV_OFFSET_REDUND (CFG_ENV_OFFSET + CFG_ENV_SIZE) #endif /*----------------------------------------------------------------------- @@ -154,10 +213,18 @@ /*------------------------------------------------------------------------------ * DDR SDRAM *----------------------------------------------------------------------------*/ +#if !defined(CONFIG_NAND_U_BOOT) +/* + * NAND booting U-Boot version uses a fixed initialization, since the whole + * I2C SPD DIMM autodetection/calibration doesn't fit into the 4k of boot + * code. + */ #define CONFIG_SPD_EEPROM 1 /* Use SPD EEPROM for setup */ #define SPD_EEPROM_ADDRESS {0x50, 0x51} /* SPD i2c spd addresses*/ #define CONFIG_DDR_ECC 1 /* with ECC support */ #define CONFIG_DDR_RQDC_FIXED 0x80000038 /* fixed value for RQDC */ +#endif +#define CFG_MBYTES_SDRAM 256 /* 256MB */ /*----------------------------------------------------------------------- * I2C @@ -367,23 +434,29 @@ * EBC address which accepts bigger regions: * * 0xfc00.0000 -> 4.cc00.0000 - * - * For this we have to remap the CS0 and re-relocate the envrironment, - * since the original FLASH location which was needed upon startup is - * now not correct anymore. */ +#if defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL) +/* Memory Bank 3 (NOR-FLASH) initialization */ +#define CFG_EBC_PB3AP 0x10055e00 +#define CFG_EBC_PB3CR (CFG_BOOT_BASE_ADDR | 0x9a000) + +/* Memory Bank 0 (NAND-FLASH) initialization */ +#define CFG_EBC_PB0AP 0x018003c0 +#define CFG_EBC_PB0CR (CFG_NAND_ADDR | 0x1E000) /* BAS=NAND,BS=1MB,BU=R/W,BW=32bit*/ +#else /* Memory Bank 0 (NOR-FLASH) initialization */ #define CFG_EBC_PB0AP 0x10055e00 #define CFG_EBC_PB0CR (CFG_BOOT_BASE_ADDR | 0x9a000) -/* Memory Bank 2 (CPLD) initialization */ -#define CFG_EBC_PB2AP 0x00804240 -#define CFG_EBC_PB2CR (CFG_BCSR_BASE | 0x18000) /* BAS=CPLD,BS=1M,BU=RW,BW=32bit */ - /* Memory Bank 3 (NAND-FLASH) initialization */ #define CFG_EBC_PB3AP 0x018003c0 #define CFG_EBC_PB3CR (CFG_NAND_ADDR | 0x1E000) /* BAS=NAND,BS=1MB,BU=R/W,BW=32bit*/ +#endif + +/* Memory Bank 2 (CPLD) initialization */ +#define CFG_EBC_PB2AP 0x00804240 +#define CFG_EBC_PB2CR (CFG_BCSR_BASE | 0x18000) /* BAS=CPLD,BS=1M,BU=RW,BW=32bit */ #define CFG_EBC_CFG 0xB8400000 /* EBC0_CFG */ |