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Handle JEDEC JEP106W continuation codes in SPI RDID. Some vendors like 

Programmable Micro Corp (PMC) need this.
Both the serial and parallel flash JEDEC detection routines would
benefit from a parity/sanity check of the vendor ID. Will do this later.

Add support for the PMC Pm25LV family of SPI flash chips.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Chris Lingard  <chris@stockwith.co.uk>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3091 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Carl-Daniel Hailfinger 2008-02-06 22:07:58 +00:00
parent a7c92a6dc4
commit c23b3a5732
3 changed files with 40 additions and 7 deletions
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15
util/flashrom/flash.h
View File

@ -158,7 +158,20 @@ extern struct flashchip flashchips[];
/* Programmable Micro Corp is listed in JEP106W in bank 2, so it should have
* a 0x7F continuation code prefix.
*/
#define PMC_ID 0x9D /* PMC */
#define PMC_ID 0x7F9D /* PMC */
#define PMC_ID_NOPREFIX 0x9D /* PMC, missing 0x7F prefix */
#define PMC_25LV512 0x7B
#define PMC_25LV010 0x7C
#define PMC_25LV020 0x7D
#define PMC_25LV040 0x7E
#define PMC_25LV080B 0x13
#define PMC_25LV016B 0x14
#define PMC_39LV512 0x1B
#define PMC_39F010 0x1C /* also Pm39LV010 */
#define PMC_39LV020 0x3D
#define PMC_39LV040 0x3E
#define PMC_39F020 0x4D
#define PMC_39F040 0x4E
#define PMC_49FL002 0x6D
#define PMC_49FL004 0x6E

18
util/flashrom/flashchips.c
View File

@ -100,10 +100,22 @@ struct flashchip flashchips[] = {
probe_49lfxxxc, erase_49lfxxxc, write_49lfxxxc},
{"SST49LF160C", SST_ID, SST_49LF160C, 2048, 4 * 1024 ,
probe_49lfxxxc, erase_49lfxxxc, write_49lfxxxc},
{"Pm49FL002", PMC_ID, PMC_49FL002, 256, 16 * 1024,
{"Pm49FL002", PMC_ID_NOPREFIX, PMC_49FL002, 256, 16 * 1024,
probe_jedec, erase_chip_jedec, write_49fl004},
{"Pm49FL004", PMC_ID, PMC_49FL004, 512, 64 * 1024,
{"Pm49FL004", PMC_ID_NOPREFIX, PMC_49FL004, 512, 64 * 1024,
probe_jedec, erase_chip_jedec, write_49fl004},
{"Pm25LV512", PMC_ID, PMC_25LV512, 64, 256,
probe_spi, generic_spi_chip_erase_c7, generic_spi_chip_write, generic_spi_chip_read},
{"Pm25LV010", PMC_ID, PMC_25LV010, 128, 256,
probe_spi, generic_spi_chip_erase_c7, generic_spi_chip_write, generic_spi_chip_read},
{"Pm25LV020", PMC_ID, PMC_25LV020, 256, 256,
probe_spi, generic_spi_chip_erase_c7, generic_spi_chip_write, generic_spi_chip_read},
{"Pm25LV040", PMC_ID, PMC_25LV040, 512, 256,
probe_spi, generic_spi_chip_erase_c7, generic_spi_chip_write, generic_spi_chip_read},
{"Pm25LV080B", PMC_ID, PMC_25LV080B, 1024, 256,
probe_spi, generic_spi_chip_erase_c7, generic_spi_chip_write, generic_spi_chip_read},
{"Pm25LV016B", PMC_ID, PMC_25LV016B, 2048, 256,
probe_spi, generic_spi_chip_erase_c7, generic_spi_chip_write, generic_spi_chip_read},
{"W29C011", WINBOND_ID, W_29C011, 128, 128,
probe_jedec, erase_chip_jedec, write_jedec},
{"W29C040P", WINBOND_ID, W_29C040P, 512, 256,
@ -205,6 +217,8 @@ struct flashchip flashchips[] = {
probe_spi, NULL, NULL},
{"MX unknown SPI chip", MX_ID, GENERIC_DEVICE_ID, 0, 0,
probe_spi, NULL, NULL},
{"PMC unknown SPI chip", PMC_ID, GENERIC_DEVICE_ID, 0, 0,
probe_spi, NULL, NULL},
{"SST unknown SPI chip", SST_ID, GENERIC_DEVICE_ID, 0, 0,
probe_spi, NULL, NULL},
{"ST unknown SPI chip", ST_ID, GENERIC_DEVICE_ID, 0, 0,

14
util/flashrom/spi.c
View File

@ -278,11 +278,17 @@ void generic_spi_write_disable()
int probe_spi(struct flashchip *flash)
{
unsigned char readarr[3];
uint8_t manuf_id;
uint16_t model_id;
uint32_t manuf_id;
uint32_t model_id;
if (!generic_spi_rdid(readarr)) {
manuf_id = readarr[0];
model_id = (readarr[1] << 8) | readarr[2];
/* Check if this is a continuation vendor ID */
if (readarr[0] == 0x7f) {
manuf_id = (readarr[0] << 8) | readarr[1];
model_id = readarr[2];
} else {
manuf_id = readarr[0];
model_id = (readarr[1] << 8) | readarr[2];
}
printf_debug("%s: id1 0x%x, id2 0x%x\n", __FUNCTION__, manuf_id, model_id);
if (manuf_id == flash->manufacture_id &&
model_id == flash->model_id) {