[U-Boot] [PATCH v3 8/8] dra7xx_evm: Add CONFIG_SUPPORT_EMMC_BOOT, document usage

[Pantelis Antoniou]

Hi Tom,

On Feb 5, 2014, at 5:24 PM, Tom Rini wrote:

> Add a README to the board which lists the commands required to enable
> booting from the eMMC boot partitions found on the board.
> 
> Cc: Lokesh Vutla <lokeshvutla at ti.com>
> Signed-off-by: Tom Rini <trini at ti.com>
> ---
> board/ti/dra7xx/README       |   25 +++++++++++++++++++++++++
> include/configs/dra7xx_evm.h |    2 ++
> 2 files changed, 27 insertions(+)
> create mode 100644 board/ti/dra7xx/README
> 
> diff --git a/board/ti/dra7xx/README b/board/ti/dra7xx/README
> new file mode 100644
> index 0000000..2fdaeac
> --- /dev/null
> +++ b/board/ti/dra7xx/README
> @@ -0,0 +1,25 @@
> +Summary
> +=======
> +
> +This document covers various features of the 'dra7xx_evm' build and some
> +related uses.
> +
> +eMMC boot partition use
> +=======================
> +
> +It is possible, depending on SYSBOOT configuration to boot from the eMMC
> +boot partitions using (name depending on documentation referenced)
> +Alternative Boot operation mode or Boot Sequence Option 1/2.  In this
> +example we load MLO and u-boot.img from the build into DDR and then use
> +'mmc bootbus' to set the required rate (see TRM) and 'mmc partconfig' to
> +set boot0 as the boot device.
> +U-Boot # setenv autoload no
> +U-Boot # usb start
> +U-Boot # dhcp
> +U-Boot # mmc dev 1 1
> +U-Boot # tftp ${loadaddr} dra7xx/MLO
> +U-Boot # mmc write ${loadaddr} 0 100
> +U-Boot # tftp ${loadaddr} dra7xx/u-boot.img
> +U-Boot # mmc write ${loadaddr} 300 400
> +U-Boot # mmc bootbus 1 2 0 2
> +U-Boot # mmc partconf 1 1 1 0
> diff --git a/include/configs/dra7xx_evm.h b/include/configs/dra7xx_evm.h
> index f210ed8..3c53f0a 100644
> --- a/include/configs/dra7xx_evm.h
> +++ b/include/configs/dra7xx_evm.h
> @@ -73,6 +73,8 @@
> #define CONFIG_SPL_SPI_CS              0
> #define CONFIG_SYS_SPI_U_BOOT_OFFS     0x20000
> 
> +#define CONFIG_SUPPORT_EMMC_BOOT
> +
> /* USB xHCI HOST */
> #define CONFIG_CMD_USB
> #define CONFIG_USB_HOST
> -- 
> 1.7.9.5


Applied. Thanks.

Signed-off-by: Pantelis Antoniou <panto at antoniou-consulting.com>