diff options
| author | Weiyi Lu <weiyi.lu@mediatek.com> | 2019-03-19 13:39:12 +0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2019-06-21 08:41:34 +0000 |
| commit | e621d8f11a2bdad4920cbb7c4293fdfd98adf4bd (patch) | |
| tree | e1531f1f93593505e3e760db3089d19af76bddc0 /src/soc/mediatek | |
| parent | f6317b4892d8d295312ffd7a8b4caccf2610c25e (diff) | |
mediatek/mt8183: Add infra group DCM setting
Add infra group DCM (Dynamic Clock Management) settings,
which slows down OR gate clocks while hardware is in idle state.
BUG=b:80501386
BRANCH=none
TEST=Boots correctly on Kukui.
Change-Id: I4741dfb7b984deb92171f370e5fb2593829d74c2
Signed-off-by: Weiyi Lu <weiyi.lu@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31977
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: You-Cheng Syu <youcheng@google.com>
Diffstat (limited to 'src/soc/mediatek')
| -rw-r--r-- | src/soc/mediatek/mt8183/include/soc/pll.h | 9 | ||||
| -rw-r--r-- | src/soc/mediatek/mt8183/pll.c | 6 |
2 files changed, 15 insertions, 0 deletions
diff --git a/src/soc/mediatek/mt8183/include/soc/pll.h b/src/soc/mediatek/mt8183/include/soc/pll.h index 2a72e2c61c..3807e0087e 100644 --- a/src/soc/mediatek/mt8183/include/soc/pll.h +++ b/src/soc/mediatek/mt8183/include/soc/pll.h @@ -270,4 +270,13 @@ enum { SPI_HZ = MAINPLL_D5_D2_HZ, }; +enum { + DCM_INFRA_BUS_MASK = 0x40907ffb, + DCM_INFRA_BUS_ON = 0x40904203, + DCM_INFRA_MEM_ON = 0x1 << 27, + DCM_INFRA_P2PRX_MASK = 0xf, + DCM_INFRA_PERI_MASK = 0xf03ffffb, + DCM_INFRA_PERI_ON = 0xf03f83e3, +}; + #endif /* SOC_MEDIATEK_MT8183_PLL_H */ diff --git a/src/soc/mediatek/mt8183/pll.c b/src/soc/mediatek/mt8183/pll.c index 07ce6603f6..5368077318 100644 --- a/src/soc/mediatek/mt8183/pll.c +++ b/src/soc/mediatek/mt8183/pll.c @@ -344,6 +344,12 @@ void mt_pll_init(void) /* enable infrasys DCM */ setbits_le32(&mt8183_infracfg->infra_bus_dcm_ctrl, 0x3 << 21); + clrsetbits_le32(&mt8183_infracfg->infra_bus_dcm_ctrl, + DCM_INFRA_BUS_MASK, DCM_INFRA_BUS_ON); + setbits_le32(&mt8183_infracfg->mem_dcm_ctrl, DCM_INFRA_MEM_ON); + clrbits_le32(&mt8183_infracfg->p2p_rx_clk_on, DCM_INFRA_P2PRX_MASK); + clrsetbits_le32(&mt8183_infracfg->peri_bus_dcm_ctrl, + DCM_INFRA_PERI_MASK, DCM_INFRA_PERI_ON); /* enable [11] for change i2c module source clock to TOPCKGEN */ setbits_le32(&mt8183_infracfg->module_clk_sel, 0x1 << 11); |