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

[Jagan Teki]

On 12 February 2015 at 05:24, Tom Rini <trini at ti.com> wrote:
> 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
>

Applied to u-boot-spi/master

thanks!
-- 
Jagan.