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spi_flash: add support for S25FL116K 

S25FL116K family uses the first 3 bytes in response to a legacy identification
command (9f) while previously supported models use the last 4 bytes. This change
defines identify functions to allow both types to be handled correctly.

BUG=none
BRANCH=tot
TEST=verified romstage is loaded on cosmos development board.

Change-Id: I1970a9af17e81299fada5029724d405de4022156
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 65ff436db2355cb68a766a3dedbcd7e2f765e6db
Original-Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Original-Change-Id: Icdd2645e356652672c4482e7b805da1bc0f21e71
Original-Reviewed-on: https://chromium-review.googlesource.com/234431
Original-Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: http://review.coreboot.org/8773
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This commit is contained in:
Daisuke Nojiri 2014-12-10 11:37:05 -08:00 committed by Patrick Georgi
parent 2a0f8cd41b
commit 93b9cb7f69
1 changed files with 61 additions and 9 deletions
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70
src/drivers/spi/spansion.c
View File

@ -44,20 +44,25 @@
#define CMD_S25FLXX_DP 0xb9 /* Deep Power-down */
#define CMD_S25FLXX_RES 0xab /* Release from DP, and Read Signature */
#define SPSN_MANUFACTURER_ID_S25FL116K 0x01
#define SPSN_ID_S25FL008A 0x0213
#define SPSN_ID_S25FL016A 0x0214
#define SPSN_ID_S25FL032A 0x0215
#define SPSN_ID_S25FL064A 0x0216
#define SPSN_ID_S25FL128S 0x0219
#define SPSN_ID_S25FL128P 0x2018
#define SPSN_ID_S25FL116K 0x4015
#define SPSN_EXT_ID_S25FL128P_256KB 0x0300
#define SPSN_EXT_ID_S25FL128P_64KB 0x0301
#define SPSN_EXT_ID_S25FL032P 0x4d00
#define SPSN_EXT_ID_S25FLXXS_64KB 0x4d01
struct spansion_spi_flash_params {
u8 idcode0;
u16 idcode1;
u16 idcode2;
int (*identify) (const struct spansion_spi_flash_params *params,
u8 *idcode);
u16 page_size;
u16 pages_per_sector;
u16 nr_sectors;
@ -75,79 +80,130 @@ static inline struct spansion_spi_flash *to_spansion_spi_flash(struct spi_flash
return container_of(flash, struct spansion_spi_flash, flash);
}
/*
* returns non-zero if the given idcode matches the ID of the chip. this is for
* chips which use 2nd, 3rd, 4th, and 5th byte.
*/
static int identify_2345(const struct spansion_spi_flash_params *params,
u8 *idcode)
{
u16 jedec = idcode[1] << 8 | idcode[2];
u16 ext_jedec = idcode[3] << 8 | idcode[4];
return (params->idcode1 == jedec) && (params->idcode2 == ext_jedec);
}
/*
* returns non-zero if the given idcode matches the ID of the chip. this is for
* chips which use 1st, 2nd, and 3rd byte.
*/
static int identify_123(const struct spansion_spi_flash_params *params,
u8 *idcode)
{
u16 jedec = idcode[1] << 8 | idcode[2];
return (params->idcode0 == idcode[0]) && (params->idcode1 == jedec);
}
static const struct spansion_spi_flash_params spansion_spi_flash_table[] = {
{
.idcode0 = 0,
.idcode1 = SPSN_ID_S25FL008A,
.idcode2 = 0,
.identify = identify_2345,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 16,
.name = "S25FL008A",
},
{
.idcode0 = 0,
.idcode1 = SPSN_ID_S25FL016A,
.idcode2 = 0,
.identify = identify_2345,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 32,
.name = "S25FL016A",
},
{
.idcode0 = 0,
.idcode1 = SPSN_ID_S25FL032A,
.idcode2 = 0,
.identify = identify_2345,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 64,
.name = "S25FL032A",
},
{
.idcode0 = 0,
.idcode1 = SPSN_ID_S25FL064A,
.idcode2 = 0,
.identify = identify_2345,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 128,
.name = "S25FL064A",
},
{
.idcode0 = 0,
.idcode1 = SPSN_ID_S25FL128P,
.idcode2 = SPSN_EXT_ID_S25FL128P_64KB,
.identify = identify_2345,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 256,
.name = "S25FL128P_64K",
},
{
.idcode0 = 0,
.idcode1 = SPSN_ID_S25FL128P,
.idcode2 = SPSN_EXT_ID_S25FL128P_256KB,
.identify = identify_2345,
.page_size = 256,
.pages_per_sector = 1024,
.nr_sectors = 64,
.name = "S25FL128P_256K",
},
{
.idcode0 = 0,
.idcode1 = SPSN_ID_S25FL128S,
.idcode2 = SPSN_EXT_ID_S25FLXXS_64KB,
.identify = identify_2345,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 512,
.name = "S25FL128S_256K",
},
{
.idcode0 = 0,
.idcode1 = SPSN_ID_S25FL032A,
.idcode2 = SPSN_EXT_ID_S25FL032P,
.identify = identify_2345,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 64,
.name = "S25FL032P",
},
{
.idcode0 = 0,
.idcode1 = SPSN_ID_S25FL128P,
.idcode2 = SPSN_EXT_ID_S25FLXXS_64KB,
.identify = identify_2345,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 256,
.name = "25FS128S",
},
{
.idcode0 = SPSN_MANUFACTURER_ID_S25FL116K,
.idcode1 = SPSN_ID_S25FL116K,
.idcode2 = 0,
.identify = identify_123,
.page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 32,
.name = "S25FL116K_16M",
},
};
static int spansion_write(struct spi_flash *flash,
@ -223,21 +279,17 @@ struct spi_flash *spi_flash_probe_spansion(struct spi_slave *spi, u8 *idcode)
const struct spansion_spi_flash_params *params;
struct spansion_spi_flash *spsn;
unsigned int i;
unsigned short jedec, ext_jedec;
jedec = idcode[1] << 8 | idcode[2];
ext_jedec = idcode[3] << 8 | idcode[4];
for (i = 0; i < ARRAY_SIZE(spansion_spi_flash_table); i++) {
params = &spansion_spi_flash_table[i];
if (params->idcode1 == jedec) {
if (params->idcode2 == ext_jedec)
break;
}
if (params->identify(params, idcode))
break;
}
if (i == ARRAY_SIZE(spansion_spi_flash_table)) {
printk(BIOS_WARNING, "SF: Unsupported SPANSION ID %04x %04x\n", jedec, ext_jedec);
printk(BIOS_WARNING,
"SF: Unsupported SPANSION ID %02x %02x %02x %02x %02x\n",
idcode[0], idcode[1], idcode[2], idcode[3], idcode[4]);
return NULL;
}