On 12 February 2015 at 05:24, Tom Rini trini@ti.com wrote:
From: Ravi Babu ravibabu@ti.com
This patch enables QUAD read mode for qspi to improve the read performace while loading the binaries from qspi.
Signed-off-by: Ravi Babu ravibabu@ti.com
drivers/spi/ti_qspi.c | 7 +++++++ include/configs/dra7xx_evm.h | 1 + 2 files changed, 8 insertions(+)
diff --git a/drivers/spi/ti_qspi.c b/drivers/spi/ti_qspi.c index 857b604..3356c0f 100644 --- a/drivers/spi/ti_qspi.c +++ b/drivers/spi/ti_qspi.c @@ -109,10 +109,17 @@ static void ti_spi_setup_spi_register(struct ti_qspi_slave *qslave) slave->op_mode_rx = 8; #endif
+#ifdef CONFIG_QSPI_QUAD_SUPPORT
memval |= (QSPI_CMD_READ_QUAD | QSPI_SETUP0_NUM_A_BYTES |QSPI_SETUP0_NUM_D_BYTES_8_BITS |QSPI_SETUP0_READ_QUAD | QSPI_CMD_WRITE |QSPI_NUM_DUMMY_BITS);+#else memval |= QSPI_CMD_READ | QSPI_SETUP0_NUM_A_BYTES | QSPI_SETUP0_NUM_D_BYTES_NO_BITS | QSPI_SETUP0_READ_NORMAL | QSPI_CMD_WRITE | QSPI_NUM_DUMMY_BITS; +#endif
writel(memval, &qslave->base->setup0);} diff --git a/include/configs/dra7xx_evm.h b/include/configs/dra7xx_evm.h index dee2b11..8fe0e6c 100644 --- a/include/configs/dra7xx_evm.h +++ b/include/configs/dra7xx_evm.h @@ -77,6 +77,7 @@ #define CONFIG_TI_SPI_MMAP #define CONFIG_SF_DEFAULT_SPEED 48000000 #define CONFIG_DEFAULT_SPI_MODE SPI_MODE_3 +#define CONFIG_QSPI_QUAD_SUPPORT
/*
- Default to using SPI for environment, etc.
-- 1.7.9.5
Applied to u-boot-spi/master
thanks!