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authorYork Sun <yorksun@freescale.com>2011-03-17 11:18:12 -0700
committerKumar Gala <galak@kernel.crashing.org>2011-03-24 09:20:50 -0500
commit4ca31929466b2804eac74d04ec7bf656c568250e (patch)
treea4cef3565ed35aa6144d3d73ca425337e990b229
parent634bc5542959f9ab53961642a1106c4acd2757f3 (diff)
powerpc/mpc8xxx: disable rcw_en bit for non-DDR3
rcw_en bit is only available for DDR3 controllers. It is a reserved bit on DDR1 and DDR2 controllers. Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
-rw-r--r--arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c b/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c
index 8ef6ca8c1c..cefabe769f 100644
--- a/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c
+++ b/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c
@@ -682,7 +682,9 @@ static void set_ddr_sdram_cfg_2(fsl_ddr_cfg_regs_t *ddr,
| ((obc_cfg & 0x1) << 6)
| ((ap_en & 0x1) << 5)
| ((d_init & 0x1) << 4)
+#ifdef CONFIG_FSL_DDR3
| ((rcw_en & 0x1) << 2)
+#endif
| ((md_en & 0x1) << 0)
);
debug("FSLDDR: ddr_sdram_cfg_2 = 0x%08x\n", ddr->ddr_sdram_cfg_2);