diff options
| author | Dawei Chien <dawei.chien@mediatek.com> | 2019-05-30 11:55:10 +0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2019-09-30 11:38:42 +0000 |
| commit | 2422f8c21e4590dcf75239583099a467f79f9878 (patch) | |
| tree | 4034a79d2b5a531e89106c30a4420f6d69bf4fa6 /src/mainboard/google | |
| parent | 45ffee83464156a58a57570b22ba35ab2859e532 (diff) | |
mediatek/mt8183: Init SPM driver
To support mt8183 power saving during suspend to RAM, this patch loads
SPM firmware to support SPM suspend. SPM needs its own firmware to do
these power saving in the right timing under correct conditions. After
linux PM suspends, SPM is able to turn off power for the last CPU and do
more power saving for the SoC such as DRAM self-refresh mode and turning
off 26M crystal.
BUG=none
BRANCH=none
TEST=suspend/resume passes for LPDDR4 3200
Change-Id: I3393a772f025b0912a5a25a63a87512454fbc86e
Signed-off-by: Dawei Chien <dawei.chien@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34545
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Diffstat (limited to 'src/mainboard/google')
| -rw-r--r-- | src/mainboard/google/kukui/mainboard.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/mainboard/google/kukui/mainboard.c b/src/mainboard/google/kukui/mainboard.c index 7b00d94ba6..844496d7a0 100644 --- a/src/mainboard/google/kukui/mainboard.c +++ b/src/mainboard/google/kukui/mainboard.c @@ -28,6 +28,7 @@ #include <soc/gpio.h> #include <soc/mmu_operations.h> #include <soc/mtcmos.h> +#include <soc/spm.h> #include <soc/usb.h> #include <string.h> @@ -201,6 +202,9 @@ static void mainboard_init(struct device *dev) configure_emmc(); configure_usb(); configure_audio(); + if (spm_init()) + printk(BIOS_ERR, + "SPM initialization failed, suspend/resume may fail.\n"); register_reset_to_bl31(); } |