diff options
| author | Rex-BC Chen <rex-bc.chen@mediatek.corp-partner.google.com> | 2021-12-17 13:13:15 +0800 |
|---|---|---|
| committer | Hung-Te Lin <hungte@chromium.org> | 2021-12-29 07:53:12 +0000 |
| commit | d67de90708331f1a68411f2c10bbe97fda919780 (patch) | |
| tree | 20de4dedf287afe343ad43bd14a33ee35311df1f /src/soc/mediatek | |
| parent | 783e2bff5357768be55e702791544459a8845fef (diff) | |
soc/mediatek/mt8186: Add DSI driver
Enable DSI for display.
BUG=b:209930699
TEST=Firmware display looked good
Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Change-Id: Idb6bd3a1d32ac96a9d1a2553b8a70db4e59eec16
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60397
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Diffstat (limited to 'src/soc/mediatek')
| -rw-r--r-- | src/soc/mediatek/mt8186/Makefile.inc | 1 | ||||
| -rw-r--r-- | src/soc/mediatek/mt8186/include/soc/dsi.h | 60 |
2 files changed, 61 insertions, 0 deletions
diff --git a/src/soc/mediatek/mt8186/Makefile.inc b/src/soc/mediatek/mt8186/Makefile.inc index dd7541f222..f99bd47d47 100644 --- a/src/soc/mediatek/mt8186/Makefile.inc +++ b/src/soc/mediatek/mt8186/Makefile.inc @@ -46,6 +46,7 @@ romstage-y += ../common/rtc.c ../common/rtc_osc_init.c rtc.c ramstage-y += ../common/auxadc.c ramstage-y += ../common/ddp.c ddp.c ramstage-y += devapc.c +ramstage-y += ../common/dsi.c ../common/mtk_mipi_dphy.c ramstage-y += emi.c ramstage-y += ../common/flash_controller.c ramstage-y += ../common/gpio.c gpio.c diff --git a/src/soc/mediatek/mt8186/include/soc/dsi.h b/src/soc/mediatek/mt8186/include/soc/dsi.h new file mode 100644 index 0000000000..2cb9159350 --- /dev/null +++ b/src/soc/mediatek/mt8186/include/soc/dsi.h @@ -0,0 +1,60 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +/* + * This file is created based on MT8186 Functional Specification + * Chapter number: 6.9 + */ + +#ifndef SOC_MEDIATEK_MT8186_DSI_H +#define SOC_MEDIATEK_MT8186_DSI_H + +#include <soc/dsi_common.h> + +/* DSI features */ +#define MTK_DSI_MIPI_RATIO_NUMERATOR 100 +#define MTK_DSI_MIPI_RATIO_DENOMINATOR 100 +#define MTK_DSI_DATA_RATE_MIN_MHZ 125 +#define MTK_DSI_HAVE_SIZE_CON 1 +#define PIXEL_STREAM_CUSTOM_HEADER 0xb + +/* MIPITX is SOC specific and cannot live in common. */ + +/* MIPITX_REG */ +struct mipi_tx_regs { + u32 reserved0[3]; + u32 lane_con; + u32 reserved1[6]; + u32 pll_pwr; + u32 pll_con0; + u32 pll_con1; + u32 pll_con2; + u32 pll_con3; + u32 pll_con4; + u32 reserved2[65]; + u32 d2_sw_ctl_en; + u32 reserved3[63]; + u32 d0_sw_ctl_en; + u32 reserved4[56]; + u32 ck_ckmode_en; + u32 reserved5[6]; + u32 ck_sw_ctl_en; + u32 reserved6[63]; + u32 d1_sw_ctl_en; + u32 reserved7[63]; + u32 d3_sw_ctl_en; +}; + +check_member(mipi_tx_regs, pll_con4, 0x3c); +check_member(mipi_tx_regs, d3_sw_ctl_en, 0x544); +static struct mipi_tx_regs *const mipi_tx = (void *)MIPITX_BASE; + +/* Register values */ +#define DSI_CK_CKMODE_EN BIT(0) +#define DSI_SW_CTL_EN BIT(0) +#define AD_DSI_PLL_SDM_PWR_ON BIT(0) +#define AD_DSI_PLL_SDM_ISO_EN BIT(1) + +#define RG_DSI_PLL_EN BIT(4) +#define RG_DSI_PLL_POSDIV (0x7 << 8) + +#endif |