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Extend MTD support to M25P16. From Sébastien Lorquet

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This commit is contained in:
Gregory Nutt
2014-11-07 10:35:03 -06:00
parent fecad1027c
commit d9b238b002
1 changed files with 21 additions and 0 deletions
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drivers/mtd/m25px.c
+21
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@@ -90,6 +90,7 @@
#define M25P_RES_ID 0x13 #define M25P_RES_ID 0x13
#define M25P_M25P1_CAPACITY 0x11 /* 1 M-bit */ #define M25P_M25P1_CAPACITY 0x11 /* 1 M-bit */
#define M25P_EN25F80_CAPACITY 0x14 /* 8 M-bit */ #define M25P_EN25F80_CAPACITY 0x14 /* 8 M-bit */
#define M25P_M25P16_CAPACITY 0x15 /* 16 M-bit */
#define M25P_M25P32_CAPACITY 0x16 /* 32 M-bit */ #define M25P_M25P32_CAPACITY 0x16 /* 32 M-bit */
#define M25P_M25P64_CAPACITY 0x17 /* 64 M-bit */ #define M25P_M25P64_CAPACITY 0x17 /* 64 M-bit */
#define M25P_M25P128_CAPACITY 0x18 /* 128 M-bit */ #define M25P_M25P128_CAPACITY 0x18 /* 128 M-bit */
@@ -116,6 +117,16 @@
#define M25P_EN25F80_SUBSECT_SHIFT 12 /* Sub-Sector size 1 << 12 = 4,096 */ #define M25P_EN25F80_SUBSECT_SHIFT 12 /* Sub-Sector size 1 << 12 = 4,096 */
#define M25P_EN25F80_NSUBSECTORS 256 #define M25P_EN25F80_NSUBSECTORS 256
/* M25P16 capacity is 2,097,152 bytes:
* (32 sectors) * (65,536 bytes per sector)
* (8192 pages) * (256 bytes per page)
*/
#define M25P_M25P16_SECTOR_SHIFT 16 /* Sector size 1 << 16 = 65,536 */
#define M25P_M25P16_NSECTORS 32
#define M25P_M25P16_PAGE_SHIFT 8 /* Page size 1 << 8 = 256 */
#define M25P_M25P16_NPAGES 8192
/* M25P32 capacity is 4,194,304 bytes: /* M25P32 capacity is 4,194,304 bytes:
* (64 sectors) * (65,536 bytes per sector) * (64 sectors) * (65,536 bytes per sector)
* (16384 pages) * (256 bytes per page) * (16384 pages) * (256 bytes per page)
@@ -349,6 +360,16 @@ static inline int m25p_readid(struct m25p_dev_s *priv)
#endif #endif
return OK; return OK;
} }
else if (capacity == M25P_M25P16_CAPACITY)
{
/* Save the FLASH geometry */
priv->sectorshift = M25P_M25P16_SECTOR_SHIFT;
priv->nsectors = M25P_M25P16_NSECTORS;
priv->pageshift = M25P_M25P16_PAGE_SHIFT;
priv->npages = M25P_M25P16_NPAGES;
return OK;
}
else if (capacity == M25P_M25P32_CAPACITY) else if (capacity == M25P_M25P32_CAPACITY)
{ {
/* Save the FLASH geometry */ /* Save the FLASH geometry */