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| author | Yidi Lin <yidi.lin@mediatek.com> | 2016-01-29 17:25:03 +0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2016-03-12 09:12:13 +0100 |
| commit | a622f28cb249c9d88751ce2694c83a62c25c221e (patch) | |
| tree | a16fc8f7c5c83dfb118ee3c5b56bfaee034ca7ae /src/soc/mediatek/mt8173/include | |
| parent | d8bb51eb4e00882259862129325aa7bf160f79c3 (diff) | |
| download | coreboot-a622f28cb249c9d88751ce2694c83a62c25c221e.tar.xz | |
mediatek/mt8173: pll: raising the CPU core frequency
Runs the LITTLE core at highest freqency to speed up the boot time.
Set Vproc to 1.125V and set the freqency to 1.6Ghz for backward
compatibility. (The highest frequency for the IC before E3 is 1.6Ghz.)
BRANCH=none
BUG=chrome-os-partner:47422
TEST=flash the bootloader and measure the boottime by cbmem result
Change-Id: Id0b906bf34ac534667eb6e8f576e30942ceb923e
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 5fc38548d158158f07cded8cfc8ea5a0a7952161
Original-Change-Id: I62af26c13d98211974243100c581abcb5408fd63
Original-Signed-off-by: Yidi Lin <yidi.lin@mediatek.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/324685
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/13980
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/soc/mediatek/mt8173/include')
| -rw-r--r-- | src/soc/mediatek/mt8173/include/soc/mt6391.h | 2 | ||||
| -rw-r--r-- | src/soc/mediatek/mt8173/include/soc/pll.h | 1 |
2 files changed, 3 insertions, 0 deletions
diff --git a/src/soc/mediatek/mt8173/include/soc/mt6391.h b/src/soc/mediatek/mt8173/include/soc/mt6391.h index 392ad634a7..c2a2ef39d5 100644 --- a/src/soc/mediatek/mt8173/include/soc/mt6391.h +++ b/src/soc/mediatek/mt8173/include/soc/mt6391.h @@ -98,6 +98,7 @@ enum{ PMIC_RG_VCA15_CON9 = 0x0226, PMIC_RG_VCA15_CON10 = 0x0228, PMIC_RG_VCA15_CON11 = 0x022A, + PMIC_RG_VCA15_CON12 = 0x022C, PMIC_RG_VCA15_CON18 = 0x0238, PMIC_RG_VSRMCA15_CON5 = 0x0244, PMIC_RG_VSRMCA15_CON6 = 0x0246, @@ -291,6 +292,7 @@ enum ldo_voltage { /* * PMIC Exported Function */ +int mt6391_configure_ca53_voltage(int uv); void mt6391_configure_ldo(enum ldo_power ldo, enum ldo_voltage vsel); u32 mt6391_read(u16 reg, u32 mask, u32 shift); void mt6391_write(u16 reg, u16 val, u32 mask, u32 shift); diff --git a/src/soc/mediatek/mt8173/include/soc/pll.h b/src/soc/mediatek/mt8173/include/soc/pll.h index 6d38bb3447..9b3cca33e7 100644 --- a/src/soc/mediatek/mt8173/include/soc/pll.h +++ b/src/soc/mediatek/mt8173/include/soc/pll.h @@ -286,6 +286,7 @@ void mt_pll_post_init(void); void mt_pll_init(void); void mt_pll_set_aud_div(u32 rate); void mt_pll_enable_ssusb_clk(void); +void mt_pll_raise_ca53_freq(u32 freq); void mt_mem_pll_set_clk_cfg(void); void mt_mem_pll_config_pre(const struct mt8173_sdram_params *sdram_params); void mt_mem_pll_config_post(void); |