From 9ef5874cfbcc03f2588d687f6247ccc9611b47c6 Mon Sep 17 00:00:00 2001 From: Ravi Babu Date: Wed, 11 Feb 2015 18:54:29 -0500 Subject: [PATCH] qspi: dra7x: enable quad mode read for ti-qspi driver This patch enables QUAD read mode for qspi to improve the read performace while loading the binaries from qspi. Signed-off-by: Ravi Babu Reviewed-by: Jagannadha Sutradharudu Teki --- 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 857b60455a..3356c0f072 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 dee2b11056..8fe0e6c16a 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. -- 2.39.2