[U-Boot] [PATCH 2/7 v11] powerpc: mpc85xx: Support booting from SD Card with SPL

[York Sun]

On 08/16/2013 12:16 AM, ying.zhang at freescale.com wrote:
> From: Ying Zhang <b40530 at freescale.com>
> 
> The code from the internal on-chip ROM. It loads the final uboot image
> into DDR, then jump to it to begin execution.
> 
> The SPL's size is sizeable, the maximum size must not exceed the size of L2
> SRAM. It initializes the DDR through SPD code, and copys final uboot image
> to DDR. So there are two stage uboot images:
> 	* spl_boot, 96KB size. The env variables are copied to L2 SRAM, so that
> 	ddr spd code can get the interleaving mode setting in env. It loads
> 	final uboot image from offset 96KB.
> 	* final uboot image, size is variable depends on the functions enabled.
> 
> Signed-off-by: Ying Zhang <b40530 at freescale.com>
> ---
> Change from v10:
> - No change.
> Change from v9:
> - Mofidy drivers/mmc/fsl_esdhc_spl.c, fix checkpatch warnings.
> Change from v8:
> - No change.
> Change from v7:
> - No change.
> Change from v6:
> - Split to the patch "Support booting from SD Card with SPL" and the patch.
> - "Enable P1022DS to boot from SD Card with SPL". this patch only support.
> - booting from SD Card with SPL.
> Change from v5:
> - Add new symbol CONFIG_SPL_ENV_IMPORT for contain the functionality.
> - env_import.
> Change from v4:
> - No change.
> Change from v3:
> - No change.
> Change from v2:
> - No change.
> Change from v1:
> - Split from "boot from SD card/SPI flash with SPL".
> 
>  README                                             |    4 +
>  arch/powerpc/cpu/mpc85xx/u-boot-spl.lds            |    5 +
>  .../cpu/mpc8xxx/ddr/lc_common_dimm_params.c        |    4 +
>  doc/README.mpc85xx-sd-spi-boot                     |   81 ++++++++++++
>  drivers/mmc/Makefile                               |    3 +
>  drivers/mmc/fsl_esdhc_spl.c                        |  130 ++++++++++++++++++++
>  drivers/mmc/mmc.c                                  |    2 +
>  include/fsl_esdhc.h                                |    1 +
>  spl/Makefile                                       |    3 +
>  9 files changed, 233 insertions(+), 0 deletions(-)
>  create mode 100644 doc/README.mpc85xx-sd-spi-boot
>  create mode 100644 drivers/mmc/fsl_esdhc_spl.c
> 

Applied to u-boot-mpc85xx.git.

York