From: Ravi Babu <ravib...@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 <ravib...@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
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