am33xx/ddr.c: Fix regression on DDR2 platforms

Back in fc46bae a "clean up" was introduced that intended to reconcile
some of the AM335x codepaths based on how AM43xx operates.
Unfortunately this introduced a regression on the DDR2 platforms.  This
was un-noticed on DDR3 (everything except for Beaglebone White) as we
had already populated sdram_config correctly in sequence.  This change
brings us back to the older behavior and is fine on all platforms.

Tested on Beaglebone White, Beaglebone Black and AM335x GP EVM

Reported-by: Matt Ranostay <mranostay@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>

diff --git a/arch/arm/cpu/armv7/am33xx/ddr.c b/arch/arm/cpu/armv7/am33xx/ddr.c
index 85cceae152c2dddf28335cf11846108bef7e7231..f5b16b4b722605729997892d41007580690ddb58 100644 (file)
--- a/arch/arm/cpu/armv7/am33xx/ddr.c
+++ b/arch/arm/cpu/armv7/am33xx/ddr.c
@@ -164,9 +164,9 @@ void config_sdram(const struct emif_regs *regs, int nr)
                writel(regs->ref_ctrl, &emif_reg[nr]->emif_sdram_ref_ctrl);
                writel(regs->ref_ctrl, &emif_reg[nr]->emif_sdram_ref_ctrl_shdw);
        }
-       writel(regs->sdram_config, &emif_reg[nr]->emif_sdram_config);
        writel(regs->ref_ctrl, &emif_reg[nr]->emif_sdram_ref_ctrl);
        writel(regs->ref_ctrl, &emif_reg[nr]->emif_sdram_ref_ctrl_shdw);
+       writel(regs->sdram_config, &emif_reg[nr]->emif_sdram_config);
 }
 
 /**