diff options
Diffstat (limited to 'src/flash/nor/at91sam7.c')
| -rw-r--r-- | src/flash/nor/at91sam7.c | 92 |
1 files changed, 91 insertions, 1 deletions
diff --git a/src/flash/nor/at91sam7.c b/src/flash/nor/at91sam7.c index 3a809e25..3fabe478 100644 --- a/src/flash/nor/at91sam7.c +++ b/src/flash/nor/at91sam7.c @@ -50,9 +50,55 @@ #endif #include "imp.h" -#include "at91sam7.h" #include <helper/binarybuffer.h> + +/* AT91SAM7 control registers */ +#define DBGU_CIDR 0xFFFFF240 +#define CKGR_MCFR 0xFFFFFC24 +#define CKGR_MOR 0xFFFFFC20 +#define CKGR_MCFR_MAINRDY 0x10000 +#define CKGR_PLLR 0xFFFFFC2c +#define CKGR_PLLR_DIV 0xff +#define CKGR_PLLR_MUL 0x07ff0000 +#define PMC_MCKR 0xFFFFFC30 +#define PMC_MCKR_CSS 0x03 +#define PMC_MCKR_PRES 0x1c + +/* Flash Controller Commands */ +#define WP 0x01 +#define SLB 0x02 +#define WPL 0x03 +#define CLB 0x04 +#define EA 0x08 +#define SGPB 0x0B +#define CGPB 0x0D +#define SSB 0x0F + +/* MC_FSR bit definitions */ +#define MC_FSR_FRDY 1 +#define MC_FSR_EOL 2 + +/* AT91SAM7 constants */ +#define RC_FREQ 32000 + +/* Flash timing modes */ +#define FMR_TIMING_NONE 0 +#define FMR_TIMING_NVBITS 1 +#define FMR_TIMING_FLASH 2 + +/* Flash size constants */ +#define FLASH_SIZE_8KB 1 +#define FLASH_SIZE_16KB 2 +#define FLASH_SIZE_32KB 3 +#define FLASH_SIZE_64KB 5 +#define FLASH_SIZE_128KB 7 +#define FLASH_SIZE_256KB 9 +#define FLASH_SIZE_512KB 10 +#define FLASH_SIZE_1024KB 12 +#define FLASH_SIZE_2048KB 14 + + static int at91sam7_protect_check(struct flash_bank *bank); static int at91sam7_write(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count); @@ -67,6 +113,50 @@ static uint32_t MC_FSR[4] = { 0xFFFFFF68, 0xFFFFFF78, 0xFFFFFF88, 0xFFFFFF98 }; static char * EPROC[8]= {"Unknown","ARM946-E","ARM7TDMI","Unknown","ARM920T","ARM926EJ-S","Unknown","Unknown"}; +struct at91sam7_flash_bank +{ + /* chip id register */ + uint32_t cidr; + uint16_t cidr_ext; + uint16_t cidr_nvptyp; + uint16_t cidr_arch; + uint16_t cidr_sramsiz; + uint16_t cidr_nvpsiz; + uint16_t cidr_nvpsiz2; + uint16_t cidr_eproc; + uint16_t cidr_version; + char *target_name; + + /* flash auto-detection */ + uint8_t flash_autodetection; + + /* flash geometry */ + uint16_t pages_per_sector; + uint16_t pagesize; + uint16_t pages_in_lockregion; + + /* nv memory bits */ + uint16_t num_lockbits_on; + uint16_t lockbits; + uint16_t num_nvmbits; + uint16_t num_nvmbits_on; + uint16_t nvmbits; + uint8_t securitybit; + + /* 0: not init + * 1: fmcn for nvbits (1uS) + * 2: fmcn for flash (1.5uS) */ + uint8_t flashmode; + + /* main clock status */ + uint8_t mck_valid; + uint32_t mck_freq; + + /* external clock frequency */ + uint32_t ext_freq; + +}; + #if 0 static long SRAMSIZ[16] = { -1, |