From 80ff868020dde82cba7fad9ff51ae3e117cab597 Mon Sep 17 00:00:00 2001 From: "jason-jh.lin" Date: Tue, 18 May 2021 00:15:23 +0800 Subject: soc/mediatek/mt8195: Add ddp driver to support eDP output Add ddp (display controller) driver that supports overlay, read/write DMA, etc. The output goes to display interface DP_INTF0 directly. Add ddp gclast and output_clamp settings on mt8195 to support multi-layer display. BUG=b:189985956 Signed-off-by: Jason-JH.Lin Change-Id: I9d5dd1025c4766218c2b1d86b9b1f97f2eab53d6 Reviewed-on: https://review.coreboot.org/c/coreboot/+/55509 Reviewed-by: Hung-Te Lin Tested-by: build bot (Jenkins) --- src/soc/mediatek/mt8195/Makefile.inc | 1 + src/soc/mediatek/mt8195/ddp.c | 180 +++++++++++++++ src/soc/mediatek/mt8195/include/soc/ddp.h | 372 ++++++++++++++++++++++++++++++ 3 files changed, 553 insertions(+) create mode 100644 src/soc/mediatek/mt8195/ddp.c create mode 100644 src/soc/mediatek/mt8195/include/soc/ddp.h diff --git a/src/soc/mediatek/mt8195/Makefile.inc b/src/soc/mediatek/mt8195/Makefile.inc index ae5bca046a..e75455f416 100644 --- a/src/soc/mediatek/mt8195/Makefile.inc +++ b/src/soc/mediatek/mt8195/Makefile.inc @@ -48,6 +48,7 @@ romstage-y += ../common/mt6359p.c mt6359p.c romstage-y += ../common/rtc.c ../common/rtc_osc_init.c ../common/rtc_mt6359p.c ramstage-y += ../common/auxadc.c +ramstage-y += ../common/ddp.c ddp.c ramstage-y += emi.c ramstage-y += ../common/flash_controller.c ramstage-y += ../common/gpio.c gpio.c diff --git a/src/soc/mediatek/mt8195/ddp.c b/src/soc/mediatek/mt8195/ddp.c new file mode 100644 index 0000000000..63fd011e95 --- /dev/null +++ b/src/soc/mediatek/mt8195/ddp.c @@ -0,0 +1,180 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include +#include +#include +#include +#include + +#define MERGE_MODE 6 +#define MERGE_SWAP 0 + +static void disp_config_main_path_connection(void) +{ + /* ovl0 */ + write32(&mmsys_cfg->mmsys_ovl_mout_en, + DISP_OVL0_TO_DISP_RDMA0); + write32(&mmsys_cfg->mmsys_sel_in, + SEL_IN_DSC_WRAP0_IN_FROM_DISP_DITHER0 | + SEL_IN_VPP_MERGE_FROM_DSC_WRAP0_OUT | + SEL_IN_DP_INTF0_FROM_VPP_MERGE); + write32(&mmsys_cfg->mmsys_sel_out, + SEL_OUT_DISP_DITHER0_TO_DSC_WRAP0_IN | + SEL_OUT_DSC_WRAP0_OUT_TO_VPP_MERGE | + SEL_OUT_VPP_MERGE_TO_DP_INTF0); +} + +static void disp_config_main_path_mutex(void) +{ + write32(&disp_mutex->mutex[0].mod, MUTEX_MOD_MAIN_PATH); + + /* Clock source from DP_INTF0 */ + write32(&disp_mutex->mutex[0].ctl, + MUTEX_SOF_DP_INTF0 | (MUTEX_SOF_DP_INTF0 << 7)); + write32(&disp_mutex->mutex[0].en, BIT(0)); +} + +static void ovl_bgclr_in_sel(u32 idx) +{ + setbits32(&disp_ovl[idx]->datapath_con, BIT(2)); +} + +static void ovl_layer_smi_id_en(u32 idx) +{ + setbits32(&disp_ovl[idx]->datapath_con, BIT(0)); +} + +static void ovl_layer_gclast_en(u32 idx) +{ + setbits32(&disp_ovl[idx]->datapath_con, BIT(24)); + setbits32(&disp_ovl[idx]->datapath_con, BIT(25)); +} + +static void ovl_layer_output_clamp_en(u32 idx) +{ + setbits32(&disp_ovl[idx]->datapath_con, BIT(26)); +} + +static void ccorr_config(u32 width, u32 height) +{ + struct disp_ccorr_regs *const regs = disp_ccorr; + + write32(®s->size, width << 16 | height); + clrsetbits32(®s->cfg, PQ_ENGINE_EN, PQ_RELAY_MODE); + write32(®s->en, PQ_EN); +} + +static void aal_config(u32 width, u32 height) +{ + struct disp_aal_regs *const regs = disp_aal; + + write32(®s->size, width << 16 | height); + write32(®s->output_size, width << 16 | height); + clrsetbits32(®s->cfg, PQ_ENGINE_EN, PQ_RELAY_MODE); + write32(®s->en, PQ_EN); +} + +static void gamma_config(u32 width, u32 height) +{ + struct disp_gamma_regs *const regs = disp_gamma; + + write32(®s->size, width << 16 | height); + setbits32(®s->cfg, PQ_RELAY_MODE); + write32(®s->en, PQ_EN); +} + +static void dither_config(u32 width, u32 height) +{ + struct disp_dither_regs *const regs = disp_dither; + write32(®s->size, width << 16 | height); + setbits32(®s->cfg, PQ_RELAY_MODE); + write32(®s->en, PQ_EN); +} + +static void dsc_config(void) +{ + struct disp_dsc_regs *const regs = disp_dsc; + + /* Enable dsc bypass mode. */ + write32(®s->con, DISP_DSC0_CON); +} + +static void merge_config(u32 width, u32 height) +{ + struct disp_merge_regs *const regs = disp_merge; + + write32(®s->cfg0, height << 16 | width); + write32(®s->cfg4, height << 16 | width); + write32(®s->cfg25, height << 16 | width); + setbits32(®s->cfg10, MERGE_SWAP); + setbits32(®s->cfg12, MERGE_MODE); + write32(®s->en, 0x1); +} + +static void main_disp_path_setup(u32 width, u32 height, u32 vrefresh) +{ + u32 idx = 0; + u32 pixel_clk = width * height * vrefresh; + + for (idx = 0; idx < MAIN_PATH_OVL_NR; idx++) { + ovl_set_roi(idx, width, height, idx ? 0 : 0xff0000ff); + ovl_layer_smi_id_en(idx); + ovl_layer_gclast_en(idx); + ovl_layer_output_clamp_en(idx); + } + + rdma_config(width, height, pixel_clk, 5 * KiB); + color_start(width, height); + ccorr_config(width, height); + aal_config(width, height); + gamma_config(width, height); + dither_config(width, height); + dsc_config(); + merge_config(width, height); + disp_config_main_path_connection(); + disp_config_main_path_mutex(); +} + +static void disp_clock_on(void) +{ + clrbits32(&mmsys_cfg->mmsys_cg_con0, CG_CON0_DISP_ALL); + clrbits32(&mmsys_cfg->mmsys_cg_con1, CG_CON1_DISP_ALL); + clrbits32(&mmsys_cfg->mmsys_cg_con2, CG_CON2_DISP_ALL); +} + +void mtk_ddp_init(void) +{ + disp_clock_on(); + + /* Turn off M4U port. */ + write32((void *)(SMI_LARB0 + SMI_LARB_PORT_L0_OVL_RDMA0), 0); +} + +void mtk_ddp_mode_set(const struct edid *edid) +{ + u32 fmt = OVL_INFMT_RGBA8888; + u32 bpp = edid->framebuffer_bits_per_pixel / 8; + u32 width = edid->mode.ha; + u32 height = edid->mode.va; + u32 vrefresh = edid->mode.refresh; + + printk(BIOS_DEBUG, "%s: display resolution: %dx%d@%d bpp %d\n", + __func__, width, height, vrefresh, bpp); + + if (!vrefresh) { + if (!width || !height) + vrefresh = 60; + else + vrefresh = edid->mode.pixel_clock * 1000 / + ((width + edid->mode.hbl) * + (height + edid->mode.vbl)); + + printk(BIOS_WARNING, "%s: vrefresh is not provided; using %d\n", + __func__, vrefresh); + } + + main_disp_path_setup(width, height, vrefresh); + rdma_start(); + ovl_layer_config(fmt, bpp, width, height); + ovl_bgclr_in_sel(1); +} diff --git a/src/soc/mediatek/mt8195/include/soc/ddp.h b/src/soc/mediatek/mt8195/include/soc/ddp.h new file mode 100644 index 0000000000..d51c0facf8 --- /dev/null +++ b/src/soc/mediatek/mt8195/include/soc/ddp.h @@ -0,0 +1,372 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#ifndef _SOC_MEDIATEK_MT8195_DDP_H_ +#define _SOC_MEDIATEK_MT8195_DDP_H_ + +#include +#include +#include + +#define MAIN_PATH_OVL_NR 2 + +struct mmsys_cfg_regs { + u32 reserved_0x000[64]; /* 0x000 */ + u32 mmsys_cg_con0; /* 0x100 */ + u32 mmsys_cg_set0; /* 0x104 */ + u32 mmsys_cg_clr0; /* 0x108 */ + u32 reserved_0x10c; /* 0x10C */ + u32 mmsys_cg_con1; /* 0x110 */ + u32 mmsys_cg_set1; /* 0x114 */ + u32 mmsys_cg_clr1; /* 0x118 */ + u32 reserved_0x11c; /* 0x11C */ + u32 mmsys_cg_con2; /* 0x120 */ + u32 mmsys_cg_set2; /* 0x124 */ + u32 mmsys_cg_clr2; /* 0x128 */ + u32 reserved_0x12c[885]; /* 0x12C */ + u32 reserved_0xf00; /* 0xF00 */ + u32 reserved_0xf04; /* 0xF04 */ + u32 reserved_0xf08; /* 0xF08 */ + u32 reserved_0xf0c; /* 0xF0C */ + u32 reserved_0xf10; /* 0xF10 */ + u32 mmsys_ovl_mout_en; /* 0xF14 */ + u32 reserved_0xf18; /* 0xF18 */ + u32 reserved_0xf1c; /* 0xF1C */ + u32 reserved_0xf20; /* 0xF20 */ + u32 reserved_0xf24; /* 0xF24 */ + u32 reserved_0xf28; /* 0xF28 */ + u32 reserved_0xf2c; /* 0xF2C */ + u32 reserved_0xf30; /* 0xF30 */ + u32 mmsys_sel_in; /* 0xF34 */ + u32 mmsys_sel_out; /* 0xF38 */ + u32 reserved_0xf3c; /* 0xF3C */ + u32 reserved_0xf40; /* 0xF40 */ +}; + +check_member(mmsys_cfg_regs, mmsys_cg_con0, 0x100); +check_member(mmsys_cfg_regs, mmsys_cg_con1, 0x110); +check_member(mmsys_cfg_regs, mmsys_cg_con2, 0x120); +check_member(mmsys_cfg_regs, mmsys_ovl_mout_en, 0xF14); +static struct mmsys_cfg_regs *const mmsys_cfg = (void *)VDOSYS0_BASE; + +/* DISP_REG_CONFIG_MMSYS_CG_CON0 + Configures free-run vdo0_clks gating 0 + 0: Enable clock + 1: Clock gating */ +enum { + CG_CON0_DISP_OVL0 = BIT(0), + CG_CON0_DISP_COLOR0 = BIT(2), + CG_CON0_DISP_CCORR0 = BIT(4), + CG_CON0_DISP_AAL0 = BIT(6), + CG_CON0_DISP_GAMMA0 = BIT(8), + CG_CON0_DISP_DITHER0 = BIT(10), + CG_CON0_DISP_RDMA0 = BIT(19), + CG_CON0_DISP_DSC_WRAP0 = BIT(23), + CG_CON0_DISP_VPP_MERGE0 = BIT(24), + CG_CON0_DISP_DP_INTF0 = BIT(25), + CG_CON0_DISP_MUTEX0 = BIT(26), + + CG_CON0_DISP_ALL = CG_CON0_DISP_MUTEX0 | + CG_CON0_DISP_OVL0 | + CG_CON0_DISP_RDMA0 | + CG_CON0_DISP_COLOR0 | + CG_CON0_DISP_CCORR0 | + CG_CON0_DISP_AAL0 | + CG_CON0_DISP_GAMMA0 | + CG_CON0_DISP_DITHER0 | + CG_CON0_DISP_DSC_WRAP0 | + CG_CON0_DISP_VPP_MERGE0 | + CG_CON0_DISP_DP_INTF0, + CG_CON0_ALL = 0xffffffff +}; + +/* DISP_REG_CONFIG_MMSYS_CG_CON1 + Configures free-run clock gating 0 + 0: Enable clock + 1: Clock gating */ +enum { + CG_CON1_SMI_GALS = BIT(10), + CG_CON1_SMI_COMMON = BIT(11), + CG_CON1_SMI_EMI = BIT(12), + CG_CON1_SMI_IOMMU = BIT(13), + CG_CON1_SMI_LARB = BIT(14), + CG_CON1_SMI_RSI = BIT(15), + + CG_CON1_DISP_ALL = CG_CON1_SMI_GALS | + CG_CON1_SMI_COMMON | + CG_CON1_SMI_EMI | + CG_CON1_SMI_IOMMU | + CG_CON1_SMI_LARB | + CG_CON1_SMI_RSI, + CG_CON1_ALL = 0xffffffff +}; + +/* DISP_REG_CONFIG_MMSYS_CG_CON2 + Configures free-run clock gating 0 + 0: Enable clock + 1: Clock gating */ +enum { + CG_CON2_DSI_DSI0 = BIT(0), + CG_CON2_DPI_DPI0 = BIT(8), + CG_CON2_DP_INTF0 = BIT(16), + CG_CON2_MM_26MHZ = BIT(24), + + CG_CON2_DISP_ALL = CG_CON2_DP_INTF0 | + CG_CON2_MM_26MHZ, + CG_CON2_ALL = 0xffffffff +}; + +enum { + DISP_OVL0_GO_BLEND = BIT(0), + DISP_OVL0_GO_BG = BIT(1), + DISP_OVL0_TO_DISP_RDMA0 = BIT(0), + DITHER0_MOUT_DSI0 = BIT(0), +}; + +enum { + SEL_IN_VPP_MERGE_FROM_DSC_WRAP0_OUT = (0 << 0), + SEL_IN_DSC_WRAP0_IN_FROM_DISP_DITHER0 = (0 << 4), + SEL_IN_DP_INTF0_FROM_VPP_MERGE = (1 << 12), + SEL_OUT_DISP_DITHER0_TO_DSC_WRAP0_IN = (0 << 0), + SEL_OUT_VPP_MERGE_TO_DP_INTF0 = (1 << 8), + SEL_OUT_DSC_WRAP0_OUT_TO_VPP_MERGE = (2 << 12), +}; + +struct disp_mutex_regs { + u32 inten; + u32 intsta; + u32 reserved0[6]; + struct { + u32 en; + u32 dummy; + u32 rst; + u32 ctl; + u32 mod; + u32 reserved[3]; + } mutex[12]; +}; + +static struct disp_mutex_regs *const disp_mutex = (void *)DISP_MUTEX_BASE; + +enum { + MUTEX_MOD_DISP_OVL0 = BIT(0), + MUTEX_MOD_DISP_RDMA0 = BIT(2), + MUTEX_MOD_DISP_COLOR0 = BIT(3), + MUTEX_MOD_DISP_CCORR0 = BIT(4), + MUTEX_MOD_DISP_AAL0 = BIT(5), + MUTEX_MOD_DISP_GAMMA0 = BIT(6), + MUTEX_MOD_DISP_DITHER0 = BIT(7), + MUTEX_MOD_DISP_DSC0 = BIT(9), + MUTEX_MOD_DISP_MERGE0 = BIT(20), + MUTEX_MOD_MAIN_PATH = MUTEX_MOD_DISP_OVL0 | + MUTEX_MOD_DISP_RDMA0 | + MUTEX_MOD_DISP_COLOR0 | + MUTEX_MOD_DISP_CCORR0 | + MUTEX_MOD_DISP_AAL0 | + MUTEX_MOD_DISP_GAMMA0 | + MUTEX_MOD_DISP_DITHER0 | + MUTEX_MOD_DISP_DSC0 | + MUTEX_MOD_DISP_MERGE0, +}; + +enum { + MUTEX_SOF_SINGLE_MODE = 0, + MUTEX_SOF_DSI0 = 1, + MUTEX_SOF_DPI0 = 2, + MUTEX_SOF_DP_INTF0 = 3, +}; + +struct disp_ccorr_regs { + u32 en; + u32 reset; + u32 inten; + u32 intsta; + u32 status; + u32 reserved0[3]; + u32 cfg; + u32 reserved1[3]; + u32 size; + u32 reserved2[27]; + u32 shadow; +}; +check_member(disp_ccorr_regs, shadow, 0xa0); + +struct disp_gamma_regs { + u32 en; + u32 reset; + u32 inten; + u32 intsta; + u32 status; + u32 reserved0[3]; + u32 cfg; + u32 reserved1[3]; + u32 size; +}; +check_member(disp_gamma_regs, size, 0x30); + +struct disp_aal_regs { + u32 en; + u32 reset; + u32 inten; + u32 intsta; + u32 status; + u32 reserved0[3]; + u32 cfg; + u32 reserved1[3]; + u32 size; + u32 reserved2[47]; + u32 shadow; + u32 reserved3[249]; + u32 output_size; +}; +check_member(disp_aal_regs, shadow, 0xf0); +check_member(disp_aal_regs, output_size, 0x4d8); + +struct disp_dither_regs { + u32 en; + u32 reset; + u32 inten; + u32 intsta; + u32 status; + u32 reserved0[3]; + u32 cfg; + u32 reserved1[3]; + u32 size; + u32 reserved2[51]; + u32 shadow; +}; +check_member(disp_dither_regs, shadow, 0x100); + +struct disp_dsc_regs { + u32 con; + u32 inten; + u32 intsta; + u32 intack; + u32 status; + u32 reserved0; + u32 pic_w; + u32 pic_h; + u32 slice_w; + u32 slice_h; + u32 chunk_size; + u32 buf_size; + u32 mode; + u32 cfg; + u32 pad; + u32 reserved1[9]; + u32 dbg_con; + u32 cksm_mon0; + u32 cksm_mon1; + u32 mute_con; + u32 obuf; + u32 reserved2[3]; + u32 pps[20]; + u32 reserved3[12]; + u32 dbg[21]; + u32 reserved4[3]; + u32 enc_dbg[4]; + u32 reserved5[36]; + u32 shadow; +}; +check_member(disp_dsc_regs, obuf, 0x70); +check_member(disp_dsc_regs, shadow, 0x200); + +struct disp_merge_regs { + u32 en; + u32 reset; + u32 reserved0[2]; + u32 cfg0; + u32 cfg1; + u32 cfg2; + u32 cfg3; + u32 cfg4; + u32 cfg5; + u32 cfg6; + u32 cfg7; + u32 cfg8; + u32 cfg9; + u32 cfg10; + u32 cfg11; + u32 cfg12; + u32 cfg13; + u32 cfg14; + u32 cfg15; + u32 cfg16; + u32 cfg17; + u32 cfg18; + u32 cfg19; + u32 cfg20; + u32 cfg21; + u32 cfg22; + u32 cfg23; + u32 cfg24; + u32 cfg25; + u32 cfg26; + u32 cfg27; + u32 cfg28; + u32 cfg29; + u32 cfg30; + u32 cfg31; + u32 cfg32; + u32 cfg33; + u32 cfg34; + u32 cfg35; + u32 cfg36; + u32 cfg37; + u32 cfg38; + u32 cfg39; + u32 cfg40; + u32 cfg41; + u32 cfg42; + u32 cfg43; + u32 cfg44; + u32 cfg45; + u32 cfg46; + u32 cfg47; + u32 cfg48; + u32 cfg49; + u32 cfg50; + u32 cfg51; + u32 cfg52; + u32 cfg53; + u32 cfg54; + u32 cfg55; +}; +check_member(disp_merge_regs, cfg55, 0xec); + +enum { + DISP_DSC0_EN = BIT(0), + DISP_DSC0_DUAL_INOUT = BIT(2), + DISP_DSC0_BYPASS = BIT(4), + DISP_DSC0_UFOE_SEL = BIT(16), + DISP_DSC0_CON = DISP_DSC0_EN | + DISP_DSC0_DUAL_INOUT | + DISP_DSC0_BYPASS | + DISP_DSC0_UFOE_SEL, +}; + +enum { + PQ_EN = BIT(0), + PQ_RELAY_MODE = BIT(0), + PQ_ENGINE_EN = BIT(1), +}; + +static struct disp_ccorr_regs *const disp_ccorr = (void *)DISP_CCORR0_BASE; + +static struct disp_aal_regs *const disp_aal = (void *)DISP_AAL0_BASE; + +static struct disp_gamma_regs *const disp_gamma = (void *)DISP_GAMMA0_BASE; + +static struct disp_dither_regs *const disp_dither = (void *)DISP_DITHER0_BASE; + +static struct disp_dsc_regs *const disp_dsc = (void *)DISP_DSC0_BASE; + +static struct disp_merge_regs *const disp_merge = (void *)DISP_MERGE0_BASE; + +enum { + SMI_LARB_PORT_L0_OVL_RDMA0 = 0x388, +}; + +void mtk_ddp_init(void); +void mtk_ddp_mode_set(const struct edid *edid); + +#endif -- cgit v1.2.3