From f2d264b6603239d6d214c4e2faf17dde64cf81e2 Mon Sep 17 00:00:00 2001
From: York Sun <yorksun@freescale.com>
Date: Tue, 7 Jun 2011 09:42:17 +0800
Subject: [PATCH] powerpc/mpc8xxx: Adding fallback to raw timing on supported
boards
In case of empty SPD or checksum error, fallback to raw timing on
supported boards.
Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
---
arch/powerpc/cpu/mpc8xxx/ddr/main.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/main.c b/arch/powerpc/cpu/mpc8xxx/ddr/main.c
index 3c49fa97c0..249fd7dfb3 100644
--- a/arch/powerpc/cpu/mpc8xxx/ddr/main.c
+++ b/arch/powerpc/cpu/mpc8xxx/ddr/main.c
@@ -343,12 +343,20 @@ fsl_ddr_compute(fsl_ddr_info_t *pinfo, unsigned int start_step,
&(pinfo->dimm_params[i][j]);
retval = compute_dimm_parameters(spd, pdimm, i);
+#ifdef CONFIG_SYS_DDR_RAW_TIMING
+ if (retval != 0) {
+ printf("SPD error! Trying fallback to "
+ "raw timing calculation\n");
+ fsl_ddr_get_dimm_params(pdimm, i, j);
+ }
+#else
if (retval == 2) {
printf("Error: compute_dimm_parameters"
" non-zero returned FATAL value "
"for memctl=%u dimm=%u\n", i, j);
return 0;
}
+#endif
if (retval) {
debug("Warning: compute_dimm_parameters"
" non-zero return value for memctl=%u "
--
2.39.5