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soc/mediatek/mt8189: Add audio/display bus protection release functions

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Add audio and display bus protection release functions to enable audio
and display subsystems. These functions should be called after
mtcmos_audio_power_on() and mtcmos_display_power_on() respectively.

BUG=b:379008996
BRANCH=none
TEST=build pass and driver init ok.

Signed-off-by: Irving-CH.lin <irving-ch.lin@mediatek.corp-partner.google.com>
Change-Id: Idb9d6e7b3adac275ccbcb71e22126eed88149d0d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/87640
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yidi Lin <yidilin@google.com>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
This commit is contained in:
Vince Liu 2025-05-12 14:09:37 +08:00 • committed by Yidi Lin
commit fe34206442
1 changed files with 21 additions and 0 deletions
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21
src/soc/mediatek/mt8189/mtcmos.c
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@ -80,3 +80,24 @@ void mtcmos_init(void)
for (i = 0; i < ARRAY_SIZE(pd_plat); i++)
mtcmos_power_on(&pd_plat[i]);
}
void mtcmos_protect_audio_bus(void)
{
write32(&mtk_infracfg_ao->perisys_protect.clr, BIT(6));
/* AUDIO CG Clear */
clrbits32(&mtk_afe->audio_audio_top[0], 0x03364F80);
clrbits32(&mtk_afe->audio_audio_top[1], 0x00F000FF);
clrbits32(&mtk_afe->audio_audio_top[2], 0x01323000);
clrbits32(&mtk_afe->audio_audio_top[3], 0x03F00000);
clrbits32(&mtk_afe->audio_audio_top[4], 0x0000301F);
}
void mtcmos_protect_display_bus(void)
{
write32(&mtk_infracfg_ao->mmsys_protect[0].clr, BIT(1) | BIT(0));
/* MMSYS_CONFIG CG Clear */
write32(&mtk_mmsys_config->mmsys_config_mmsys_cg_0_clr, 0xFF7FFFFF);
write32(&mtk_mmsys_config->mmsys_config_mmsys_cg_1_clr, 0x0000007B);
}