diff options
Diffstat (limited to 'drivers/memory/omap-gpmc.c')
| -rw-r--r-- | drivers/memory/omap-gpmc.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/memory/omap-gpmc.c b/drivers/memory/omap-gpmc.c index 24696f59215b..10eb4ac4d324 100644 --- a/drivers/memory/omap-gpmc.c +++ b/drivers/memory/omap-gpmc.c @@ -153,6 +153,15 @@ #define GPMC_CONFIG1_FCLK_DIV4 (GPMC_CONFIG1_FCLK_DIV(3)) #define GPMC_CONFIG7_CSVALID (1 << 6) +#define GPMC_CONFIG7_BASEADDRESS_MASK 0x3f +#define GPMC_CONFIG7_CSVALID_MASK BIT(6) +#define GPMC_CONFIG7_MASKADDRESS_OFFSET 8 +#define GPMC_CONFIG7_MASKADDRESS_MASK (0xf << GPMC_CONFIG7_MASKADDRESS_OFFSET) +/* All CONFIG7 bits except reserved bits */ +#define GPMC_CONFIG7_MASK (GPMC_CONFIG7_BASEADDRESS_MASK | \ + GPMC_CONFIG7_CSVALID_MASK | \ + GPMC_CONFIG7_MASKADDRESS_MASK) + #define GPMC_DEVICETYPE_NOR 0 #define GPMC_DEVICETYPE_NAND 2 #define GPMC_CONFIG_WRITEPROTECT 0x00000010 @@ -586,12 +595,15 @@ static int gpmc_cs_set_memconf(int cs, u32 base, u32 size) if (base & (size - 1)) return -EINVAL; + base >>= GPMC_CHUNK_SHIFT; mask = (1 << GPMC_SECTION_SHIFT) - size; + mask >>= GPMC_CHUNK_SHIFT; + mask <<= GPMC_CONFIG7_MASKADDRESS_OFFSET; + l = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG7); - l &= ~0x3f; - l = (base >> GPMC_CHUNK_SHIFT) & 0x3f; - l &= ~(0x0f << 8); - l |= ((mask >> GPMC_CHUNK_SHIFT) & 0x0f) << 8; + l &= ~GPMC_CONFIG7_MASK; + l |= base & GPMC_CONFIG7_BASEADDRESS_MASK; + l |= mask & GPMC_CONFIG7_MASKADDRESS_MASK; l |= GPMC_CONFIG7_CSVALID; gpmc_cs_write_reg(cs, GPMC_CS_CONFIG7, l); |