diff options
Diffstat (limited to 'pm49fl004.c')
| -rw-r--r-- | pm49fl004.c | 94 |
1 files changed, 49 insertions, 45 deletions
diff --git a/pm49fl004.c b/pm49fl004.c index 25921c6..e0bd6aa 100644 --- a/pm49fl004.c +++ b/pm49fl004.c @@ -31,37 +31,38 @@ #define RESET 0xFF #define READ_ID 0x90 -static __inline__ int erase_block_49fl004 ( volatile unsigned char * bios ,unsigned long address) +static __inline__ int erase_block_49fl004(volatile unsigned char *bios, + unsigned long address) { - volatile unsigned char *Temp; + volatile unsigned char *Temp; - Temp = bios + 0x5555; /* set up address to be C000:5555h */ - *Temp = 0xAA; /* write data 0xAA to the address */ - myusec_delay(10); - Temp = bios + 0x2AAA; /* set up address to be C000:2AAAh */ - *Temp = 0x55; /* write data 0x55 to the address */ - myusec_delay(10); - Temp = bios + 0x5555; /* set up address to be C000:5555h */ - *Temp = 0x80; /* write data 0x80 to the address */ - myusec_delay(10); - Temp = bios + 0x5555; /* set up address to be C000:5555h */ - *Temp = 0xAA; /* write data 0xAA to the address */ - myusec_delay(10); - Temp = bios + 0x2AAA; /* set up address to be C000:2AAAh */ - *Temp = 0x55; /* write data 0x55 to the address */ - myusec_delay(10); - Temp = bios + address; /* set up address to be C000:5555h */ - *Temp = 0x50; /* write data 0x50 to the address */ + Temp = bios + 0x5555; /* set up address to be C000:5555h */ + *Temp = 0xAA; /* write data 0xAA to the address */ + myusec_delay(10); + Temp = bios + 0x2AAA; /* set up address to be C000:2AAAh */ + *Temp = 0x55; /* write data 0x55 to the address */ + myusec_delay(10); + Temp = bios + 0x5555; /* set up address to be C000:5555h */ + *Temp = 0x80; /* write data 0x80 to the address */ + myusec_delay(10); + Temp = bios + 0x5555; /* set up address to be C000:5555h */ + *Temp = 0xAA; /* write data 0xAA to the address */ + myusec_delay(10); + Temp = bios + 0x2AAA; /* set up address to be C000:2AAAh */ + *Temp = 0x55; /* write data 0x55 to the address */ + myusec_delay(10); + Temp = bios + address; /* set up address to be C000:5555h */ + *Temp = 0x50; /* write data 0x50 to the address */ /* wait for Toggle bit ready */ - toggle_ready_jedec(bios); + toggle_ready_jedec(bios); - return(0); + return (0); } -static __inline__ int write_block_49fl004(volatile char * bios, - unsigned char * src, - volatile unsigned char * dst, +static __inline__ int write_block_49fl004(volatile char *bios, + unsigned char *src, + volatile unsigned char *dst, unsigned int page_size) { int i; @@ -69,8 +70,9 @@ static __inline__ int write_block_49fl004(volatile char * bios, for (i = 0; i < page_size; i++) { if (*dst != 0xff) { - printf("FATAL: dst %p not erased (val 0x%x\n", dst, *dst); - return(-1); + printf("FATAL: dst %p not erased (val 0x%x\n", dst, + *dst); + return (-1); } /* transfer data from source to destination */ if (*src == 0xFF) { @@ -78,42 +80,44 @@ static __inline__ int write_block_49fl004(volatile char * bios, /* If the data is 0xFF, don't program it */ continue; } - Temp = (bios + 0x5555); - *Temp = 0xAA; - Temp = bios + 0x2AAA; - *Temp = 0x55; - Temp = bios + 0x5555; - *Temp = 0xA0; + Temp = (bios + 0x5555); + *Temp = 0xAA; + Temp = bios + 0x2AAA; + *Temp = 0x55; + Temp = bios + 0x5555; + *Temp = 0xA0; *dst = *src; toggle_ready_jedec(bios); if (*dst != *src) printf("BAD! dst 0x%lx val 0x%x src 0x%x\n", - (unsigned long)dst, *dst, *src); + (unsigned long) dst, *dst, *src); dst++, src++; } - return(0); + return (0); } -int write_49fl004 (struct flashchip * flash, unsigned char * buf) +int write_49fl004(struct flashchip *flash, unsigned char *buf) { int i; - int total_size = flash->total_size * 1024, page_size = flash->page_size; - volatile char * bios = flash->virt_addr; + int total_size = flash->total_size * 1024, page_size = + flash->page_size; + volatile char *bios = flash->virt_addr; - printf ("Programming Page: "); - for (i = 0; i < total_size/page_size; i++) { + printf("Programming Page: "); + for (i = 0; i < total_size / page_size; i++) { /* erase the page before programming */ erase_block_49fl004(bios, i * page_size); /* write to the sector */ - printf ("%04d at address: 0x%08x", i, i * page_size); - write_block_49fl004(bios, buf + i * page_size, bios + i * page_size, - page_size); - printf ("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"); - fflush(stdout); + printf("%04d at address: 0x%08x", i, i * page_size); + write_block_49fl004(bios, buf + i * page_size, + bios + i * page_size, page_size); + printf + ("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"); + fflush(stdout); } printf("\n"); - return(0); + return (0); } |
