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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>
This commit is contained in:
David Hendricks 2015-09-25 15:27:46 -07:00 committed by Patrick Georgi
parent c8c099f1ea
commit ccecd457df
1 changed files with 8 additions and 0 deletions
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8
src/mainboard/google/veyron_rialto/mainboard.c
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@ -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)