Stefan Reinauer (stefan.reinauer@coreboot.org) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/1289
-gerrit
commit f1351932d41879cf8b71e8586667ba1ab5ac70c7 Author: Stefan Reinauer reinauer@chromium.org Date: Mon Jun 18 14:38:40 2012 -0700
More descriptive error messages in Sandybridge raminit code
MRC returns specific error codes; print the according error message if we know what it means.
Change-Id: Iaaf1512b9d577d4291fccfb94d879043ab5b11b5 Signed-off-by: Stefan Reinauer reinauer@google.com --- src/northbridge/intel/sandybridge/raminit.c | 13 +++++++++++-- 1 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/src/northbridge/intel/sandybridge/raminit.c b/src/northbridge/intel/sandybridge/raminit.c index 0df86d6..bb8b25c 100644 --- a/src/northbridge/intel/sandybridge/raminit.c +++ b/src/northbridge/intel/sandybridge/raminit.c @@ -249,8 +249,17 @@ void sdram_initialize(struct pei_data *pei_data) "call *%%ecx\n\t" :"=a" (rv) : "c" (entry), "a" (pei_data)); if (rv) { - printk(BIOS_ERR, "MRC returned %x\n", rv); - die("Nonzero MRC return value\n"); + switch (rv) { + case -1: + printk(BIOS_ERR, "PEI version mismatch."); + break; + case -2: + printk(BIOS_ERR, "Invalid memory frequency.\n"); + break; + default: + printk(BIOS_ERR, "MRC returned %x.\n", rv); + } + die("Nonzero MRC return value.\n"); } } else { die("UEFI PEI System Agent not found.\n");