diff options
Diffstat (limited to 'jedec.c')
| -rw-r--r-- | jedec.c | 62 |
1 files changed, 21 insertions, 41 deletions
@@ -62,26 +62,19 @@ int probe_jedec(struct flashchip *flash) int erase_sector_jedec(volatile unsigned char *bios, unsigned int page) { - volatile unsigned char *Temp; - /* Issue the Sector Erase command */ - Temp = bios + 0x5555; /* set up address to be BASE:5555h */ - *Temp = 0xAA; /* write data 0xAA to the address */ + *(volatile char *) (bios + 0x5555) = 0xAA; myusec_delay(10); - Temp = bios + 0x2AAA; /* set up address to be BASE:2AAAh */ - *Temp = 0x55; /* write data 0x55 to the address */ + *(volatile char *) (bios + 0x2AAA) = 0x55; myusec_delay(10); - Temp = bios + 0x5555; /* set up address to be BASE:5555h */ - *Temp = 0x80; /* write data 0x80 to the address */ + *(volatile char *) (bios + 0x5555) = 0x80; myusec_delay(10); - Temp = bios + 0x5555; /* set up address to be BASE:5555h */ - *Temp = 0xAA; /* write data 0xAA to the address */ + + *(volatile char *) (bios + 0x5555) = 0xAA; myusec_delay(10); - Temp = bios + 0x2AAA; /* set up address to be BASE:2AAAh */ - *Temp = 0x55; /* write data 0x55 to the address */ + *(volatile char *) (bios + 0x2AAA) = 0x55; myusec_delay(10); - Temp = bios + page; /* set up address to be the current sector */ - *Temp = 0x30; /* write data 0x30 to the address */ + *(volatile char *) (bios + page) = 0x30; myusec_delay(10); /* wait for Toggle bit ready */ @@ -92,26 +85,19 @@ int erase_sector_jedec(volatile unsigned char *bios, unsigned int page) int erase_block_jedec(volatile unsigned char *bios, unsigned int block) { - volatile unsigned char *Temp; - /* Issue the Sector Erase command */ - Temp = bios + 0x5555; /* set up address to be BASE:5555h */ - *Temp = 0xAA; /* write data 0xAA to the address */ + *(volatile char *) (bios + 0x5555) = 0xAA; myusec_delay(10); - Temp = bios + 0x2AAA; /* set up address to be BASE:2AAAh */ - *Temp = 0x55; /* write data 0x55 to the address */ + *(volatile char *) (bios + 0x2AAA) = 0x55; myusec_delay(10); - Temp = bios + 0x5555; /* set up address to be BASE:5555h */ - *Temp = 0x80; /* write data 0x80 to the address */ + *(volatile char *) (bios + 0x5555) = 0x80; myusec_delay(10); - Temp = bios + 0x5555; /* set up address to be BASE:5555h */ - *Temp = 0xAA; /* write data 0xAA to the address */ + + *(volatile char *) (bios + 0x5555) = 0xAA; myusec_delay(10); - Temp = bios + 0x2AAA; /* set up address to be BASE:2AAAh */ - *Temp = 0x55; /* write data 0x55 to the address */ + *(volatile char *) (bios + 0x2AAA) = 0x55; myusec_delay(10); - Temp = bios + block; /* set up address to be the current sector */ - *Temp = 0x50; /* write data 0x30 to the address */ + *(volatile char *) (bios + block) = 0x50; myusec_delay(10); /* wait for Toggle bit ready */ @@ -123,26 +109,20 @@ int erase_block_jedec(volatile unsigned char *bios, unsigned int block) int erase_chip_jedec(struct flashchip *flash) { volatile unsigned char *bios = flash->virt_addr; - volatile unsigned char *Temp; /* Issue the JEDEC Chip Erase command */ - Temp = bios + 0x5555; /* set up address to be BASE:5555h */ - *Temp = 0xAA; /* write data 0xAA to the address */ + *(volatile char *) (bios + 0x5555) = 0xAA; myusec_delay(10); - Temp = bios + 0x2AAA; /* set up address to be BASE:2AAAh */ - *Temp = 0x55; /* write data 0x55 to the address */ + *(volatile char *) (bios + 0x2AAA) = 0x55; myusec_delay(10); - Temp = bios + 0x5555; /* set up address to be BASE:5555h */ - *Temp = 0x80; /* write data 0x80 to the address */ + *(volatile char *) (bios + 0x5555) = 0x80; myusec_delay(10); - Temp = bios + 0x5555; /* set up address to be BASE:5555h */ - *Temp = 0xAA; /* write data 0xAA to the address */ + + *(volatile char *) (bios + 0x5555) = 0xAA; myusec_delay(10); - Temp = bios + 0x2AAA; /* set up address to be BASE:2AAAh */ - *Temp = 0x55; /* write data 0x55 to the address */ + *(volatile char *) (bios + 0x2AAA) = 0x55; myusec_delay(10); - Temp = bios + 0x5555; /* set up address to be BASEy:5555h */ - *Temp = 0x10; /* write data 0x10 to the address */ + *(volatile char *) (bios + 0x5555) = 0x10; myusec_delay(10); toggle_ready_jedec(bios); |
