[U-Boot] [PATCH] MTD: Add support for S25FL032P spi nor-flash

[David Jander]

This patch introduces an extra mask-field in spansion_spi_flash_params
to support flash chips with 1-byte extended ID (like the S25FL032P).

Signed-off-by: David Jander <da...@protonic.nl>
---
 drivers/mtd/spi/spansion.c |   19 ++++++++++++++++++-
 1 files changed, 18 insertions(+), 1 deletions(-)

diff --git a/drivers/mtd/spi/spansion.c b/drivers/mtd/spi/spansion.c
index d6c1a5f..14cd6d3 100644
--- a/drivers/mtd/spi/spansion.c
+++ b/drivers/mtd/spi/spansion.c
@@ -52,12 +52,14 @@
 #define SPSN_ID_S25FL128P      0x2018
 #define SPSN_EXT_ID_S25FL128P_256KB    0x0300
 #define SPSN_EXT_ID_S25FL128P_64KB     0x0301
+#define SPSN_EXT_ID_S25FL032P          0x4d00
 
 #define SPANSION_SR_WIP                (1 << 0)        /* Write-in-Progress */
 
 struct spansion_spi_flash_params {
        u16 idcode1;
        u16 idcode2;
+       u16 idmask2;
        u16 page_size;
        u16 pages_per_sector;
        u16 nr_sectors;
@@ -79,6 +81,7 @@ static const struct spansion_spi_flash_params 
spansion_spi_flash_table[] = {
        {
                .idcode1 = SPSN_ID_S25FL008A,
                .idcode2 = 0,
+               .idmask2 = 0xffff,
                .page_size = 256,
                .pages_per_sector = 256,
                .nr_sectors = 16,
@@ -87,6 +90,7 @@ static const struct spansion_spi_flash_params 
spansion_spi_flash_table[] = {
        {
                .idcode1 = SPSN_ID_S25FL016A,
                .idcode2 = 0,
+               .idmask2 = 0xffff,
                .page_size = 256,
                .pages_per_sector = 256,
                .nr_sectors = 32,
@@ -95,6 +99,7 @@ static const struct spansion_spi_flash_params 
spansion_spi_flash_table[] = {
        {
                .idcode1 = SPSN_ID_S25FL032A,
                .idcode2 = 0,
+               .idmask2 = 0xffff,
                .page_size = 256,
                .pages_per_sector = 256,
                .nr_sectors = 64,
@@ -103,6 +108,7 @@ static const struct spansion_spi_flash_params 
spansion_spi_flash_table[] = {
        {
                .idcode1 = SPSN_ID_S25FL064A,
                .idcode2 = 0,
+               .idmask2 = 0xffff,
                .page_size = 256,
                .pages_per_sector = 256,
                .nr_sectors = 128,
@@ -111,6 +117,7 @@ static const struct spansion_spi_flash_params 
spansion_spi_flash_table[] = {
        {
                .idcode1 = SPSN_ID_S25FL128P,
                .idcode2 = SPSN_EXT_ID_S25FL128P_64KB,
+               .idmask2 = 0xffff,
                .page_size = 256,
                .pages_per_sector = 256,
                .nr_sectors = 256,
@@ -119,11 +126,21 @@ static const struct spansion_spi_flash_params 
spansion_spi_flash_table[] = {
        {
                .idcode1 = SPSN_ID_S25FL128P,
                .idcode2 = SPSN_EXT_ID_S25FL128P_256KB,
+               .idmask2 = 0xffff,
                .page_size = 256,
                .pages_per_sector = 1024,
                .nr_sectors = 64,
                .name = "S25FL128P_256K",
        },
+       {
+               .idcode1 = SPSN_ID_S25FL032A,
+               .idcode2 = SPSN_EXT_ID_S25FL032P,
+               .idmask2 = 0xff00,
+               .page_size = 256,
+               .pages_per_sector = 256,
+               .nr_sectors = 64,
+               .name = "S25FL032P",
+       },
 };
 
 static int spansion_wait_ready(struct spi_flash *flash, unsigned long 
timeout)
@@ -317,7 +334,7 @@ struct spi_flash *spi_flash_probe_spansion(struct 
spi_slave *spi, u8 *idcode)
        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)
+                       if (params->idcode2 == (ext_jedec & params->idmask2))
                                break;
                }
        }
-- 
1.6.3.3

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