[U-Boot] [PATCH 3/7] dra7xx_evm: add SPL API, QSPI, and serial flash support

[Lokesh Vutla <lokeshvutla@ti.com>]

On Wednesday 10 July 2013 04:55 PM, Sourav Poddar wrote:
> From: Matt Porter <mporter@ti.com>
> 
> Enables support for SPI SPL, QSPI and Spansion serial flash device
> on the EVM. Configures pin muxes for QSPI mode.
> 
> Signed-off-by: Matt Porter <mporter@ti.com>
> Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
> ---
>  board/ti/dra7xx/mux_data.h   |   10 ++++++++++
>  include/configs/dra7xx_evm.h |   22 ++++++++++++++++++++++
>  2 files changed, 32 insertions(+), 0 deletions(-)
> 
> diff --git a/board/ti/dra7xx/mux_data.h b/board/ti/dra7xx/mux_data.h
> index 338a241..2441c55 100644
> --- a/board/ti/dra7xx/mux_data.h
> +++ b/board/ti/dra7xx/mux_data.h
> @@ -53,5 +53,15 @@ const struct pad_conf_entry core_padconf_array_essential[] = {
>  	{UART1_RTSN, (IEN | PTU | PDIS | M3)},	/* UART1_RTSN */
>  	{I2C1_SDA, (IEN | PTU | PDIS | M0)},	/* I2C1_SDA */
>  	{I2C1_SCL, (IEN | PTU | PDIS | M0)},	/* I2C1_SCL */
> +	{GPMC_A13, (IEN | PDIS | M1)},	/* QSPI1_RTCLK */
> +	{GPMC_A14, (IEN | PDIS | M1)},  /* QSPI1_D[3] */
> +	{GPMC_A15, (IEN | PDIS | M1)},	/* QSPI1_D[2] */
> +	{GPMC_A16, (IEN | PDIS | M1)},	/* QSPI1_D[1] */
> +	{GPMC_A17, (IEN | PDIS | M1)},	/* QSPI1_D[0] */
> +	{GPMC_A18, (IEN | PDIS | M1)},	/* QSPI1_SCLK */
> +	{GPMC_A3, (IEN | PDIS | M1)},	/* QSPI1_CS2 */
> +	{GPMC_A4, (IEN | PDIS | M1)},	/* QSPI1_CS3 */
> +	{GPMC_CS2, (IEN | PTU | PDIS | M1)},	/* QSPI1_CS0 */
> +	{GPMC_CS3, (IEN | PTU | PDIS | M1)},	/* QSPI1_CS1*/
>  };
>  #endif /* _MUX_DATA_DRA7XX_H_ */
> diff --git a/include/configs/dra7xx_evm.h b/include/configs/dra7xx_evm.h
> index 6b37e1d..0583858 100644
> --- a/include/configs/dra7xx_evm.h
> +++ b/include/configs/dra7xx_evm.h
> @@ -46,4 +46,26 @@
>  #define NON_SECURE_SRAM_END	0x40380000	/* Not inclusive */
>  
>  #define CONFIG_SYS_OMAP_ABE_SYSCK
> +#define CONFIG_SYS_DCACHE_OFF
> +#define CONFIG_SYS_ICACHE_OFF
Is it necessary to Disable caches to use QSPI?
If not please drop these two defines.
> +
> +#define EMIF1_EMIF2
This one too..

Thanks,
Lokesh
> +
> +/* SPI */
> +#define CONFIG_TI_QSPI
> +#define CONFIG_SPI_FLASH
> +#define CONFIG_SPI_FLASH_SPANSION
> +#define CONFIG_CMD_SF
> +#define CONFIG_CMD_SPI
> +#define CONFIG_SF_DEFAULT_SPEED		12000000
> +#define CONFIG_DEFAULT_SPI_MODE		SPI_MODE_3
> +
> +/* SPI SPL */
> +#define CONFIG_SPL_SPI_SUPPORT
> +#define CONFIG_SPL_SPI_LOAD
> +#define CONFIG_SPL_SPI_FLASH_SUPPORT
> +#define CONFIG_SPL_SPI_BUS		0
> +#define CONFIG_SPL_SPI_CS		0
> +#define CONFIG_SYS_SPI_U_BOOT_OFFS	0x20000
> +
>  #endif /* __CONFIG_DRA7XX_EVM_H */
>