diff options
| author | Keith Short <keithshort@chromium.org> | 2019-05-10 11:49:24 -0600 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2019-05-20 14:48:10 +0000 |
| commit | 8ef6732b94148a39f8203cb3b4cf3388dc103199 (patch) | |
| tree | 9a4600840149f50c286547a716b3fa78ed38f02e /src/ec | |
| parent | 686b539949d9a07d3b6522c075ccae3f15a6121a (diff) | |
ec/google/wilco: Add support for KB_ERR_CODE to Wilco EC
Adds support for the KB_ERR_CODE command on the Wilco EC. This command
is used to drive diagnostic LEDs on the platform after a failed boot.
This change also adds the Wilco EC mailbox command support to bootblock
and verstage so that those stages can use the KB_ERR_CODE command.
BUG=b:124401932
BRANCH=sarien
TEST=build coreboot for sarien and arcada platforms
Change-Id: I96d17baf57694e4e01c676d80c606f67054cd0c3
Signed-off-by: Keith Short <keithshort@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32776
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/ec')
| -rw-r--r-- | src/ec/google/wilco/Makefile.inc | 3 | ||||
| -rw-r--r-- | src/ec/google/wilco/commands.c | 6 | ||||
| -rw-r--r-- | src/ec/google/wilco/commands.h | 21 |
3 files changed, 29 insertions, 1 deletions
diff --git a/src/ec/google/wilco/Makefile.inc b/src/ec/google/wilco/Makefile.inc index 3a7790c097..f17869ecbc 100644 --- a/src/ec/google/wilco/Makefile.inc +++ b/src/ec/google/wilco/Makefile.inc @@ -1,6 +1,7 @@ ifeq ($(CONFIG_EC_GOOGLE_WILCO),y) -bootblock-y += bootblock.c +bootblock-y += bootblock.c commands.c mailbox.c +verstage-y += commands.c mailbox.c romstage-y += commands.c mailbox.c romstage.c boardid.c ramstage-y += chip.c commands.c mailbox.c boardid.c smm-y += commands.c mailbox.c smihandler.c boardid.c diff --git a/src/ec/google/wilco/commands.c b/src/ec/google/wilco/commands.c index d0d572d569..a97a28ecce 100644 --- a/src/ec/google/wilco/commands.c +++ b/src/ec/google/wilco/commands.c @@ -181,3 +181,9 @@ int wilco_ec_signed_fw(void) CONFIG_EC_BASE_ACPI_DATA); return !!ec_read(EC_RAM_SIGNED_FW); } + +int wilco_ec_err_code(enum ec_err_code err_code) +{ + return wilco_ec_mailbox(WILCO_EC_MSG_DEFAULT, KB_ERR_CODE, + &err_code, 1, NULL, 0); +} diff --git a/src/ec/google/wilco/commands.h b/src/ec/google/wilco/commands.h index 3077eee578..fafb7fd8ba 100644 --- a/src/ec/google/wilco/commands.h +++ b/src/ec/google/wilco/commands.h @@ -50,6 +50,8 @@ enum { KB_SLP_EN = 0x64, /* Inform the EC about BIOS boot progress */ KB_BIOS_PROGRESS = 0xc2, + /* Inform the EC that a fatal error occurred */ + KB_ERR_CODE = 0x7b, }; enum ec_ram_addr { @@ -86,6 +88,12 @@ enum ec_camera { CAMERA_OFF }; +enum ec_err_code { + DLED_MEMORY = 0x03, + DLED_PANEL = 0x10, + DLED_ROM = 0x19, +}; + /** * wilco_ec_radio_control() - Control wireless radios. * @ec_radio: Wireless radio type. @@ -310,4 +318,17 @@ enum ec_acpi_wake_events { */ int wilco_ec_signed_fw(void); +/** + * wilco_ec_err_code + * + * Send an error code to the EC to indicate a failed boot. The EC flashes the + * platform LED amber and white to provide user indication of the failure type. + * + * @err_code: Error code to send to the EC + * + * Returns 0 if EC command was successful + * Returns -1 if EC command failed + */ +int wilco_ec_err_code(enum ec_err_code err_code); + #endif /* EC_GOOGLE_WILCO_COMMANDS_H */ |