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authorDuncan Laurie <dlaurie@chromium.org>2014-08-29 15:32:55 -0700
committerMarc Jones <marc.jones@se-eng.com>2015-03-31 20:21:43 +0200
commitbf5407cd4985119cd682ded72e9e634496d48201 (patch)
tree70ee4b82eb3532826652acbe996eed496e5b11e1 /src/ec/google/chromeec
parent6e76fff96961264e8c7213142966de6589092291 (diff)
chromeec: Clear post code before reboot to RO
When doing an EC requested reboot to RO mode clear the saved post code in order to prevent confusing events in the log where the system is rebooted intentionally. BUG=chrome-os-partner:28234 BRANCH=none TEST=build and boot on samus, run FAFT, check for odd eventlog entries about last post code 0x31 when it is rebooted during samus romstage entry point. Original-Change-Id: I8bedc611712424bf1044cdca1972e34ffdd51abd Original-Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/215681 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> (cherry picked from commit e32d7a7e54e7006b84509dbc2bfe9b4b022eba71) Signed-off-by: Marc Jones <marc.jones@se-eng.com> Change-Id: Iad816669fb4054260f995f6f0bfb140121aaddff Reviewed-on: http://review.coreboot.org/9176 Tested-by: build bot (Jenkins) Reviewed-by: Duncan Laurie <dlaurie@google.com>
Diffstat (limited to 'src/ec/google/chromeec')
-rw-r--r--src/ec/google/chromeec/ec.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/ec/google/chromeec/ec.c b/src/ec/google/chromeec/ec.c
index 7d35a046b5..1fadeec369 100644
--- a/src/ec/google/chromeec/ec.c
+++ b/src/ec/google/chromeec/ec.c
@@ -146,6 +146,7 @@ void google_chromeec_check_ec_image(int expected_type)
cec_cmd.cmd_size_in = sizeof(reboot_ec);
cec_cmd.cmd_size_out = 0; /* ignore response, if any */
printk(BIOS_DEBUG, "Rebooting with EC in RO mode:\n");
+ post_code(0); /* clear current post code */
google_chromeec_command(&cec_cmd);
udelay(1000);
hard_reset();
@@ -451,6 +452,7 @@ void google_chromeec_init(void)
cec_cmd.cmd_size_in = sizeof(reboot_ec);
cec_cmd.cmd_size_out = 0; /* ignore response, if any */
printk(BIOS_DEBUG, "Rebooting with EC in RO mode:\n");
+ post_code(0); /* clear current post code */
google_chromeec_command(&cec_cmd);
udelay(1000);
hard_reset();