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| author | Vignesh R <vigneshr@ti.com> | 2015-11-23 17:43:36 +0530 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2016-01-20 10:19:33 -0500 |
| commit | 74d49bfde3dd562ceeba2d6883caedcb3e484a6b (patch) | |
| tree | b684b75e28c93e0c9f74c1090ea913772c060d69 /drivers/spi | |
| parent | 99e7fc8a2659ff1b2887c8b11b01ef423e00ee1c (diff) | |
| download | blackbird-obmc-uboot-74d49bfde3dd562ceeba2d6883caedcb3e484a6b.tar.gz blackbird-obmc-uboot-74d49bfde3dd562ceeba2d6883caedcb3e484a6b.zip | |
spi: ti_qspi: Use 4-byte opcode for mmap read
ti-qspi driver currently uses 3-byte addressing mode(and opcodes) for
memory-mapped read. This restricts maximum addressable flash size to
16MB.
Enable the 4-byte addressing(and use 4-byte opcode) for memory-mapped
read to allow access to addresses above 16MB.
Signed-off-by: Ravi Babu <ravibabu@ti.com>
[vigneshr@ti.com: Re-word commit description]
Signed-off-by: Vignesh R <vigneshr@ti.com>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/ti_qspi.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/spi/ti_qspi.c b/drivers/spi/ti_qspi.c index 78d8b1368d..b5c974ce38 100644 --- a/drivers/spi/ti_qspi.c +++ b/drivers/spi/ti_qspi.c @@ -52,15 +52,15 @@ DECLARE_GLOBAL_DATA_PTR; #define QSPI_CMD_READ (0x3 << 0) #define QSPI_CMD_READ_DUAL (0x6b << 0) -#define QSPI_CMD_READ_QUAD (0x6b << 0) +#define QSPI_CMD_READ_QUAD (0x6c << 0) #define QSPI_CMD_READ_FAST (0x0b << 0) -#define QSPI_SETUP0_NUM_A_BYTES (0x2 << 8) +#define QSPI_SETUP0_NUM_A_BYTES (0x3 << 8) #define QSPI_SETUP0_NUM_D_BYTES_NO_BITS (0x0 << 10) #define QSPI_SETUP0_NUM_D_BYTES_8_BITS (0x1 << 10) #define QSPI_SETUP0_READ_NORMAL (0x0 << 12) #define QSPI_SETUP0_READ_DUAL (0x1 << 12) #define QSPI_SETUP0_READ_QUAD (0x3 << 12) -#define QSPI_CMD_WRITE (0x2 << 16) +#define QSPI_CMD_WRITE (0x12 << 16) #define QSPI_NUM_DUMMY_BITS (0x0 << 24) /* ti qspi register set */ |
