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Add support for MT25Q1G SPI NOR

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This commit is contained in:
Jani Paalijarvi 2021-09-15 16:28:56 +03:00 committed by Xiang Xiao
parent a41f92d1f6
commit b7a5b248e0
1 changed files with 25 additions and 0 deletions
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25
drivers/mtd/m25px.c
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@ -98,6 +98,7 @@
#define M25P_M25P64_CAPACITY 0x17 /* 64 M-bit */
#define M25P_M25P128_CAPACITY 0x18 /* 128 M-bit */
#define M25P_MT25Q128_CAPACITY 0x18 /* 128 M-bit */
#define M25P_MT25Q1G_CAPACITY 0x21 /* 1 G-bit */
/* M25P1 capacity is 131,072 bytes:
* (4 sectors) * (32,768 bytes per sector)
@ -174,6 +175,17 @@
#define M25P_MT25Q128_NPAGES 65536
#define M25P_MT25Q128_SUBSECT_SHIFT 12 /* Sub-Sector size 1 << 12 = 4,096 */
/* MT25Q1G capacity is 134,217,728 bytes:
* (2048 sectors) * (65,536 bytes per sector)
* (524288 pages) * (256 bytes per page)
*/
#define M25P_MT25Q1G_SECTOR_SHIFT 16 /* Sector size 1 << 16 = 65,536 */
#define M25P_MT25Q1G_NSECTORS 2048
#define M25P_MT25Q1G_PAGE_SHIFT 8 /* Page size 1 << 8 = 256 */
#define M25P_MT25Q1G_NPAGES 524288
#define M25P_MT25Q1G_SUBSECT_SHIFT 12 /* Sub-Sector size 1 << 12 = 4,096 */
/* Instructions */
/* Command Value N Description Addr Dummy Data */
@ -459,6 +471,19 @@ static inline int m25p_readid(struct m25p_dev_s *priv)
priv->npages = M25P_MT25Q128_NPAGES;
#ifdef CONFIG_M25P_SUBSECTOR_ERASE
priv->subsectorshift = M25P_MT25Q128_SUBSECT_SHIFT;
#endif
return OK;
}
else if (capacity == M25P_MT25Q1G_CAPACITY)
{
/* Save the FLASH geometry */
priv->sectorshift = M25P_MT25Q1G_SECTOR_SHIFT;
priv->nsectors = M25P_MT25Q1G_NSECTORS;
priv->pageshift = M25P_MT25Q1G_PAGE_SHIFT;
priv->npages = M25P_MT25Q1G_NPAGES;
#ifdef CONFIG_M25P_SUBSECTOR_ERASE
priv->subsectorshift = M25P_MT25Q1G_SUBSECT_SHIFT;
#endif
return OK;
}