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authorDavid Hendricks <dhendrix@chromium.org>2015-09-25 15:27:46 -0700
committerPatrick Georgi <pgeorgi@google.com>2015-10-25 07:31:40 +0100
commitccecd457df8c93531333bde66bd5d304970a9947 (patch)
tree5a5e704a604f9b903513fff37a11a136bdd11cb5 /src/mainboard
parentc8c099f1ea142250efa392234c6ba98058eba9b5 (diff)
downloadcoreboot-ccecd457df8c93531333bde66bd5d304970a9947.tar.xz
google/veyron_rialto: Reduce voltage and frequency in recovery mode
This applies CL:300617 to Rialto to down throttle further in recovery mode. BUG=chrome-os-partner:42054 BRANCH=none TEST=Saw print statment in recovery mode with image.serial.bin, device only got mildly warm after several minutes (not hot). Change-Id: I08b6024d31c83c6bbd8c8d9d9a07adc9835e81fd Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 74eb9143fbe13df5f386185eab9e5ba9df27cadf Original-Signed-off-by: David Hendricks <dhendrix@chromium.org> Original-Change-Id: I9e57d826750cb523c115332fa13a6143bcff7449 Original-Reviewed-on: https://chromium-review.googlesource.com/302631 Reviewed-on: http://review.coreboot.org/12135 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks <dhendrix@chromium.org>
Diffstat (limited to 'src/mainboard')
-rw-r--r--src/mainboard/google/veyron_rialto/mainboard.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/mainboard/google/veyron_rialto/mainboard.c b/src/mainboard/google/veyron_rialto/mainboard.c
index c2dde19a72..35de7e0508 100644
--- a/src/mainboard/google/veyron_rialto/mainboard.c
+++ b/src/mainboard/google/veyron_rialto/mainboard.c
@@ -91,6 +91,14 @@ static void mainboard_init(device_t dev)
elog_init();
elog_add_watchdog_reset();
elog_add_boot_reason();
+
+ /* If recovery mode is detected, reduce frequency and voltage to reduce
+ * heat in case machine is left unattended. chrome-os-partner:41201. */
+ if (recovery_mode_enabled()) {
+ printk(BIOS_DEBUG, "Reducing APLL freq for recovery mode.\n");
+ rkclk_configure_cpu(APLL_600_MHZ);
+ rk808_configure_buck(1, 900);
+ }
}
static void mainboard_enable(device_t dev)