baytrail: romstage: Add config option to enable RMT
Add config option to enable RMT in the MRC.
BUG=chrome-os-partner:21807
TEST=Manual. Build w/ "USE=rmt", verify RMT print seen on FW console.
Build w/o USE flag, verify no RMT print.
BRANCH=None.
CQ-DEPEND=CL:*148655
Change-Id: Ibd3da87317a3359e797d9b43bc437e7227a85048
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/178095
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/4982
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
diff --git a/src/soc/intel/baytrail/Kconfig b/src/soc/intel/baytrail/Kconfig
index e0e6c2a..969fa15 100644
--- a/src/soc/intel/baytrail/Kconfig
+++ b/src/soc/intel/baytrail/Kconfig
@@ -80,6 +80,10 @@
hex
default 0xfffa0000
+config MRC_RMT
+ bool "Enable MRC RMT training + debug prints"
+ default n
+
config CACHE_MRC_SETTINGS
bool "Save cached MRC settings"
default n
diff --git a/src/soc/intel/baytrail/baytrail/mrc_wrapper.h b/src/soc/intel/baytrail/baytrail/mrc_wrapper.h
index 858aab8..2074100 100644
--- a/src/soc/intel/baytrail/baytrail/mrc_wrapper.h
+++ b/src/soc/intel/baytrail/baytrail/mrc_wrapper.h
@@ -28,7 +28,7 @@
#ifndef _MRC_WRAPPER_H_
#define _MRC_WRAPPER_H_
-#define MRC_PARAMS_VER 1
+#define MRC_PARAMS_VER 2
#define NUM_CHANNELS 2
@@ -78,6 +78,7 @@
const void *saved_data;
int txe_size_mb; /* TXE memory size in megabytes. */
+ int rmt_enabled; /* Enable RMT training + prints. */
/* Outputs */
void *txe_base_address;
diff --git a/src/soc/intel/baytrail/romstage/raminit.c b/src/soc/intel/baytrail/romstage/raminit.c
index 017f37d..dc840b0 100644
--- a/src/soc/intel/baytrail/romstage/raminit.c
+++ b/src/soc/intel/baytrail/romstage/raminit.c
@@ -118,7 +118,9 @@
mp->version = MRC_PARAMS_VER;
mp->console_out = &send_to_console;
mp->prev_sleep_state = prev_sleep_state;
-
+#if CONFIG_MRC_RMT
+ mp->rmt_enabled = 1;
+#endif
if (recovery_mode_enabled()) {
printk(BIOS_DEBUG, "Recovery mode: not using MRC cache.\n");
} else if (!mrc_cache_get_current(&cache)) {