diff options
| author | Garmin Chang <garmin.chang@mediatek.com> | 2021-06-24 15:31:17 +0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2021-07-07 14:47:21 +0000 |
| commit | 6615c2d08cbb1ffe942753735eb34dae8fa5306a (patch) | |
| tree | 273d7bb8dbfc91ba342dde77868bf90440bc43f2 /src | |
| parent | 4ceaf464232dcf25cc72d1a4a5dca287bc8ca1d0 (diff) | |
soc/mediatek/mt8195: Enable DCM
Enable DCM settings on the MT8195 platform.
DCM means dynamic clock management, and it can dynamically
slow down or gate clocks during CPU or bus idle.
Change-Id: Ib431a0334c157d440d6e89dcb154241d980d97ce
Signed-off-by: Garmin Chang <garmin.chang@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56097
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/mediatek/mt8195/include/soc/pll.h | 41 | ||||
| -rw-r--r-- | src/soc/mediatek/mt8195/pll.c | 21 |
2 files changed, 62 insertions, 0 deletions
diff --git a/src/soc/mediatek/mt8195/include/soc/pll.h b/src/soc/mediatek/mt8195/include/soc/pll.h index cc133c8b14..9b6f314f65 100644 --- a/src/soc/mediatek/mt8195/include/soc/pll.h +++ b/src/soc/mediatek/mt8195/include/soc/pll.h @@ -580,4 +580,45 @@ DEFINE_BITFIELD(CLK_MISC_CFG_0_METER_DIV, 31, 24) DEFINE_BITFIELD(CLK26CALI_0_TRIGGER, 4, 4) DEFINE_BITFIELD(CLK26CALI_1_LOAD_CNT, 25, 16) +enum { + INFRACFG_AO_AXIMEM_BUS_DCM_REG0_MASK = (0x1f << 12) | (0x1 << 17) | (0x1 << 18), + INFRACFG_AO_AXIMEM_BUS_DCM_REG0_ON = (0x10 << 12) | (0x1 << 17) | (0x0 << 18), + INFRACFG_AO_INFRA_BUS_DCM_REG0_MASK = (0x1 << 0) | + (0x1 << 1) | + (0x1 << 3) | + (0x1 << 4) | + (0x1f << 5) | + (0x1 << 20) | + (0x1 << 23) | + (0x1 << 30), + INFRACFG_AO_INFRA_BUS_DCM_REG0_ON = (0x1 << 0) | + (0x1 << 1) | + (0x0 << 3) | + (0x0 << 4) | + (0x10 << 5) | + (0x1 << 20) | + (0x1 << 23) | + (0x1 << 30), + INFRACFG_AO_INFRA_RX_P2P_DCM_REG0_MASK = (0xf << 0), + INFRACFG_AO_INFRA_RX_P2P_DCM_REG0_ON = (0x0 << 0), + INFRACFG_AO_PERI_BUS_DCM_REG0_MASK = (0x1 << 0) | + (0x1 << 1) | + (0x1 << 3) | + (0x1 << 4) | + (0x1f << 5) | + (0x1f << 15) | + (0x1 << 20) | + (0x1 << 21), + INFRACFG_AO_PERI_BUS_DCM_REG0_ON = (0x1 << 0) | + (0x1 << 1) | + (0x0 << 3) | + (0x0 << 4) | + (0x1f << 5) | + (0x1f << 15) | + (0x1 << 20) | + (0x1 << 21), + INFRACFG_AO_PERI_MODULE_DCM_REG0_MASK = (0x1 << 29) | (0x1 << 31), + INFRACFG_AO_PERI_MODULE_DCM_REG0_ON = (0x1 << 29) | (0x1 << 31), +}; + #endif /* SOC_MEDIATEK_MT8195_PLL_H */ diff --git a/src/soc/mediatek/mt8195/pll.c b/src/soc/mediatek/mt8195/pll.c index fc165358c9..ebdc37f362 100644 --- a/src/soc/mediatek/mt8195/pll.c +++ b/src/soc/mediatek/mt8195/pll.c @@ -713,6 +713,27 @@ void mt_pll_init(void) setbits32(&mt8195_infracfg_ao->infra_bus_dcm_ctrl, 0x3 << 21); setbits32(&mt8195_infracfg_ao_bcrm->vdnr_dcm_top_infra_ctrl0, 0x2); + /* dcm_infracfg_ao_aximem_bus_dcm */ + clrsetbits32(&mt8195_infracfg_ao->infra_aximem_idle_bit_en_0, + INFRACFG_AO_AXIMEM_BUS_DCM_REG0_MASK, + INFRACFG_AO_AXIMEM_BUS_DCM_REG0_ON); + /* dcm_infracfg_ao_infra_bus_dcm */ + clrsetbits32(&mt8195_infracfg_ao->infra_bus_dcm_ctrl, + INFRACFG_AO_INFRA_BUS_DCM_REG0_MASK, + INFRACFG_AO_INFRA_BUS_DCM_REG0_ON); + /* dcm_infracfg_ao_infra_rx_p2p_dcm */ + clrsetbits32(&mt8195_infracfg_ao->p2p_rx_clk_on, + INFRACFG_AO_INFRA_RX_P2P_DCM_REG0_MASK, + INFRACFG_AO_INFRA_RX_P2P_DCM_REG0_ON); + /* dcm_infracfg_ao_peri_bus_dcm */ + clrsetbits32(&mt8195_infracfg_ao->peri_bus_dcm_ctrl, + INFRACFG_AO_PERI_BUS_DCM_REG0_MASK, + INFRACFG_AO_PERI_BUS_DCM_REG0_ON); + /* dcm_infracfg_ao_peri_module_dcm */ + clrsetbits32(&mt8195_infracfg_ao->peri_bus_dcm_ctrl, + INFRACFG_AO_PERI_MODULE_DCM_REG0_MASK, + INFRACFG_AO_PERI_MODULE_DCM_REG0_ON); + /* initialize SPM request */ setbits32(&mtk_topckgen->clk_scp_cfg_0, 0x3ff); |