[U-Boot-Users] [PATCH] Fix memory initialization on MPC8349ITX

[Timur Tabi <timur@freescale.com>]

Benedict, Michael wrote:
> Hello,
> 	This is my first patch submission to u-boot, so let me know if
> the format needs to be updated.  

There should be a "---" underneath the signed-off-by lines, and comments about the patch 
should be located *below* the "---".  Patches for 83xx should be posted to u-boot-users 
and emailed to Kim Phillips directly.

> Define CFG_DDR_SDRAM_CLK_CNTL for the MPC8349ITX.  This allows
> ddr->sdram_clk_cntl to be properly initialized, like it was before
> commit f6eda7f80ccc13d658020268c507d7173cf2e8aa to
> cpu/mpc83xx/spd_sdram.c

You should probably update fixed_sdram() in mpc8349itx.c as well.  Currently, it has this 
code:

	im->ddr.sdram_clk_cntl =
	    DDR_SDRAM_CLK_CNTL_SS_EN | DDR_SDRAM_CLK_CNTL_CLK_ADJUST_05;

That should be changed to

	im->ddr.sdram_clk_cntl = CFG_DDR_SDRAM_CLK_CNTL;

I'll test this code on my ITX, however, I'm curious about one thing.  Can you explain why 
this patch is okay for *all* ITX boards?  I remember something about your board having 
problematic DDR or something.  With your patch, all ITX and ITX-GP boards will set 
sdram_clk_cntl to the new value when SPD is used.

-- 
Timur Tabi
Linux Kernel Developer @ Freescale