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40 lines
1.6 KiB
Diff
40 lines
1.6 KiB
Diff
--- a/drivers/mtd/devices/m25p80.c
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+++ b/drivers/mtd/devices/m25p80.c
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@@ -45,6 +45,7 @@
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#define OPCODE_BE_4K 0x20 /* Erase 4KiB block */
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#define OPCODE_BE_32K 0x52 /* Erase 32KiB block */
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#define OPCODE_CHIP_ERASE 0xc7 /* Erase whole flash chip */
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+#define OPCODE_BE_4K_PMC 0xd7 /* Erase 4KiB block on PMC chips*/
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#define OPCODE_SE 0xd8 /* Sector erase (usually 64KiB) */
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#define OPCODE_RDID 0x9f /* Read JEDEC ID */
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@@ -625,6 +626,7 @@ struct flash_info {
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u16 flags;
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#define SECT_4K 0x01 /* OPCODE_BE_4K works uniformly */
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#define M25P_NO_ERASE 0x02 /* No erase command needed */
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+#define SECT_4K_PMC 0x04 /* OPCODE_BE_4K_PMC works uniformly */
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};
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#define INFO(_jedec_id, _ext_id, _sector_size, _n_sectors, _flags) \
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@@ -686,6 +688,10 @@ static const struct spi_device_id m25p_i
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{ "mx25l25635e", INFO(0xc22019, 0, 64 * 1024, 512, 0) },
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{ "mx25l25655e", INFO(0xc22619, 0, 64 * 1024, 512, 0) },
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+ /* PMC -- pm25x "blocks" are 32K, sectors are 4K */
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+ { "pm25lv512", INFO(0, 0, 32 * 1024, 2, SECT_4K_PMC) },
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+ { "pm25lv010", INFO(0, 0, 32 * 1024, 4, SECT_4K_PMC) },
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+
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/* Spansion -- single (large) sector size only, at least
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* for the chips listed here (without boot sectors).
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*/
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@@ -921,6 +927,9 @@ static int __devinit m25p_probe(struct s
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if (info->flags & SECT_4K) {
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flash->erase_opcode = OPCODE_BE_4K;
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flash->mtd.erasesize = 4096;
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+ } else if (info->flags & SECT_4K_PMC) {
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+ flash->erase_opcode = OPCODE_BE_4K_PMC;
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+ flash->mtd.erasesize = 4096;
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} else {
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flash->erase_opcode = OPCODE_SE;
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flash->mtd.erasesize = info->sector_size;
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