[U-Boot] [PATCH 4/4 v2] powerpc: p1010rdb: Enable p1010rdb to start from NAND/SD/SPI flash with SPL

[York Sun]

On 01/23/2014 11:50 PM, ying.zhang at freescale.com wrote:
> From: Ying Zhang <b40530 at freescale.com>
> 
> In the previous patches, we introduced the SPL/TPL fraamework.
> For SD/SPI flash booting way, we introduce the SPL to enable a loader stub. The
> SPL was loaded by the code from the internal on-chip ROM. The SPL initializes
> the DDR according to the SPD and loads the final uboot image into DDR, then
> jump to the DDR to begin execution.
> 
> For NAND booting way, the nand SPL has size limitation on some board(e.g.
> P1010RDB), it can not be more than 8KB, we can call it "minimal SPL", So the
> dynamic DDR driver doesn't fit into this minimum SPL. We added the TPL that is
> loaded by the the minimal SPL. The TPL initializes the DDR according to the SPD
> and loads the final uboot image into DDR,then jump to the DDR to begin execution.
> 
> This patch enabled SPL/TPL for P1010RDB to support starting from NAND/SD/SPI
> flash with SPL framework and initializing the DDR according to SPD in the SPL/TPL.
> Because the minimal SPL load the TPL to L2 SRAM and the jump to the L2 SRAM to
> execute, so the section .resetvec is no longer needed.
> 
> Signed-off-by: Ying Zhang <b40530 at freescale.com>
> ---
> Change from v1:
> - No change.

Applied to u-boot-mpc85xx/master. Thanks.

York