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To make it easier to add new SPI chips to flashchips.c, rename functions 

with multiple possible opcodes from linear numbering at the end (_1, _2)
to include the opcode at the end (_60, _c7). That way, you only have to
take a short look at the data sheet and choose the right function by
appending the opcode listed in the data sheet.
No functional changes.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Ward Vandewege <ward@gnu.org>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3009 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Carl-Daniel Hailfinger 2007-12-17 14:33:32 +00:00
parent 3b408fd237
commit 12a3f1edec
3 changed files with 22 additions and 22 deletions
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2
util/flashrom/flash.h
View File

@ -257,7 +257,7 @@ int it87xx_probe_spi_flash(const char *name);
int generic_spi_command(unsigned int writecnt, unsigned int readcnt, const unsigned char *writearr, unsigned char *readarr);
void generic_spi_write_enable();
void generic_spi_write_disable();
int generic_spi_chip_erase(struct flashchip *flash);
int generic_spi_chip_erase_c7(struct flashchip *flash);
int generic_spi_chip_write(struct flashchip *flash, uint8_t *buf);
/* 82802ab.c */

4
util/flashrom/flashchips.c
View File

@ -47,7 +47,7 @@ struct flashchip flashchips[] = {
{"MX29F002", MX_ID, MX_29F002, 256, 64 * 1024,
probe_29f002, erase_29f002, write_29f002},
{"MX25L4005", MX_ID, MX_25L4005, 512, 4 * 1024,
probe_spi, generic_spi_chip_erase, generic_spi_chip_write},
probe_spi, generic_spi_chip_erase_c7, generic_spi_chip_write},
{"SST29EE020A", SST_ID, SST_29EE020A, 256, 128,
probe_jedec, erase_chip_jedec, write_jedec},
{"SST28SF040A", SST_ID, SST_28SF040, 512, 256,
@ -141,7 +141,7 @@ struct flashchip flashchips[] = {
{"M29F040B", ST_ID, ST_M29F040B, 512, 64 * 1024,
probe_29f040b, erase_29f040b, write_29f040b},
{"M25P80", ST_ID, ST_M25P80, 1024, 64 * 1024,
probe_spi, generic_spi_chip_erase, generic_spi_chip_write},
probe_spi, generic_spi_chip_erase_c7, generic_spi_chip_write},
{"82802ab", 137, 173, 512, 64 * 1024,
probe_82802ab, erase_82802ab, write_82802ab},
{"82802ac", 137, 172, 1024, 64 * 1024,

38
util/flashrom/spi.c
View File

@ -46,24 +46,24 @@
#define JEDEC_WRDI_INSIZE 0x00
/* Chip Erase 0x60 is supported by Macronix/SST chips. */
#define JEDEC_CE_1 {0x60};
#define JEDEC_CE_1_OUTSIZE 0x01
#define JEDEC_CE_1_INSIZE 0x00
#define JEDEC_CE_60 {0x60};
#define JEDEC_CE_60_OUTSIZE 0x01
#define JEDEC_CE_60_INSIZE 0x00
/* Chip Erase 0xc7 is supported by EON/Macronix chips. */
#define JEDEC_CE_2 {0xc7};
#define JEDEC_CE_2_OUTSIZE 0x01
#define JEDEC_CE_2_INSIZE 0x00
/* Chip Erase 0xc7 is supported by ST/EON/Macronix chips. */
#define JEDEC_CE_C7 {0xc7};
#define JEDEC_CE_C7_OUTSIZE 0x01
#define JEDEC_CE_C7_INSIZE 0x00
/* Block Erase 0x52 is supported by SST chips. */
#define JEDEC_BE_1 {0x52};
#define JEDEC_BE_1_OUTSIZE 0x04
#define JEDEC_BE_1_INSIZE 0x00
#define JEDEC_BE_52 {0x52};
#define JEDEC_BE_52_OUTSIZE 0x04
#define JEDEC_BE_52_INSIZE 0x00
/* Block Erase 0xd8 is supported by EON/Macronix chips. */
#define JEDEC_BE_2 {0xd8};
#define JEDEC_BE_2_OUTSIZE 0x04
#define JEDEC_BE_2_INSIZE 0x00
#define JEDEC_BE_D8 {0xd8};
#define JEDEC_BE_D8_OUTSIZE 0x04
#define JEDEC_BE_D8_INSIZE 0x00
/* Sector Erase 0x20 is supported by Macronix/SST chips. */
#define JEDEC_SE {0x20};
@ -277,9 +277,9 @@ uint8_t generic_spi_read_status_register()
return readarr[0];
}
int generic_spi_chip_erase(struct flashchip *flash)
int generic_spi_chip_erase_c7(struct flashchip *flash)
{
const unsigned char cmd[] = JEDEC_CE_2;
const unsigned char cmd[] = JEDEC_CE_C7;
uint8_t statusreg;
statusreg = generic_spi_read_status_register();
@ -287,7 +287,7 @@ int generic_spi_chip_erase(struct flashchip *flash)
generic_spi_write_enable();
/* Send CE (Chip Erase) */
generic_spi_command(JEDEC_CE_2_OUTSIZE, JEDEC_CE_2_INSIZE, cmd, NULL);
generic_spi_command(JEDEC_CE_C7_OUTSIZE, JEDEC_CE_C7_INSIZE, cmd, NULL);
/* Wait until the Write-In-Progress bit is cleared.
* This usually takes 1-85 s, so wait in 1 s steps.
*/
@ -301,16 +301,16 @@ int generic_spi_chip_erase(struct flashchip *flash)
* 32k for SST
* 4-32k non-uniform for EON
*/
int generic_spi_block_erase(const struct flashchip *flash, unsigned long addr)
int generic_spi_block_erase_d8(const struct flashchip *flash, unsigned long addr)
{
unsigned char cmd[JEDEC_BE_2_OUTSIZE] = JEDEC_BE_2;
unsigned char cmd[JEDEC_BE_D8_OUTSIZE] = JEDEC_BE_D8;
cmd[1] = (addr & 0x00ff0000) >> 16;
cmd[2] = (addr & 0x0000ff00) >> 8;
cmd[3] = (addr & 0x000000ff);
generic_spi_write_enable();
/* Send BE (Block Erase) */
generic_spi_command(JEDEC_BE_2_OUTSIZE, JEDEC_BE_2_INSIZE, cmd, NULL);
generic_spi_command(JEDEC_BE_D8_OUTSIZE, JEDEC_BE_D8_INSIZE, cmd, NULL);
/* Wait until the Write-In-Progress bit is cleared.
* This usually takes 100-4000 ms, so wait in 100 ms steps.
*/