nb/intel/nehalem: Add some debug output
Change-Id: Icbdada0a8cdbcface5124a5f9ebd3d667c376902
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36037
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
diff --git a/src/northbridge/intel/nehalem/raminit.c b/src/northbridge/intel/nehalem/raminit.c
index 75be572..4618911 100644
--- a/src/northbridge/intel/nehalem/raminit.c
+++ b/src/northbridge/intel/nehalem/raminit.c
@@ -3730,6 +3730,9 @@
int cbmem_wasnot_inited;
x2ca8 = MCHBAR8(0x2ca8);
+
+ printk(RAM_DEBUG, "Scratchpad MCHBAR8(0x2ca8): 0x%04x\n", x2ca8);
+
deven = pci_read_config16(NORTHBRIDGE, D0F0_DEVEN);
memset(&info, 0x5a, sizeof(info));
@@ -4241,6 +4244,8 @@
if (x2ca8 == 0) {
MCHBAR8_AND(0x2ca8, ~3);
MCHBAR8(0x2ca8) = MCHBAR8(0x2ca8) + 4; // "+" or "|"?
+ /* This issues a CPU reset without resetting the platform */
+ printk(BIOS_DEBUG, "Issuing a CPU reset\n");
MCHBAR32_OR(0x1af0, 0x10);
halt();
}