diff options
| author | Lukasz Siudut <lsiudut@fb.com> | 2019-02-15 16:25:17 +0000 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2019-02-22 11:09:04 +0000 |
| commit | 180ac500fce24feee48a71afccdd40ea0f1cbb2f (patch) | |
| tree | 1c5788848f8c018f0eb862207100109d5eac23a4 | |
| parent | 4185de5ff7cea3007af52fdcdd7a8f4220468be1 (diff) | |
mb/ocp/monolake: Fix booting issues
We experienced booting issues during FSP-M phase. Applying fix that was
introduced for wedge100s - 817994c1bec (mb/ocp/wedge100s/romstage:
Workaround broken platform state) - helped and systems started to
boot properly.
Signed-off-by: Lukasz Siudut <lsiudut@fb.com>
Change-Id: Ibfbe9d19c7413098c56d1b6131640097fdf731ab
Reviewed-on: https://review.coreboot.org/c/31435
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
| -rw-r--r-- | src/mainboard/ocp/monolake/romstage.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/src/mainboard/ocp/monolake/romstage.c b/src/mainboard/ocp/monolake/romstage.c index cf52c01f04..2bb50f097b 100644 --- a/src/mainboard/ocp/monolake/romstage.c +++ b/src/mainboard/ocp/monolake/romstage.c @@ -17,6 +17,9 @@ #include <stddef.h> #include <soc/romstage.h> #include <drivers/intel/fsp1_0/fsp_util.h> +#include <cpu/x86/msr.h> +#include <cf9_reset.h> +#include <console/console.h> /** * /brief mainboard call for setup that needs to be done before fsp init @@ -24,7 +27,20 @@ */ void early_mainboard_romstage_entry(void) { - + /* + * Sometimes the system boots in an invalid state, where random values + * have been written to MSRs and then the MSRs are locked. + * Seems to always happen on warm reset. + * + * Power cycling or a board_reset() isn't sufficient in this case, so + * issue a full_reset() to "fix" this issue. + */ + msr_t msr = rdmsr(IA32_FEATURE_CONTROL); + if (msr.lo & 1) { + console_init(); + printk(BIOS_EMERG, "Detected broken platform state. Issuing full reset\n"); + full_reset(); + } } /** |