[U-Boot] [PATCH] qspi: dra7x: enable quad mode read for ti-qspi driver

[Tom Rini]

From: Ravi Babu <ravibabu at 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 at 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