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soc/mediatek/mt8188: Add ddp driver to support eDP output 

Add DDP (display data path) driver that supports overlay, read/write
DMA, etc. The output goes to display interface DP_INTF0 directly.
Add ddp gclast and output_clamp settings to MT8188 to support
multi-layer display.

BUG=b:244208960
TEST=emerge-geralt coreboot.

Signed-off-by: Nathan Lu <nathan.lu@mediatek.com>
Change-Id: Icc0a878c609818fedd298c141bb39469fd2f6388
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68487
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Reviewed-by: Yidi Lin <yidilin@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Nathan Lu 2022-09-26 14:11:32 +08:00 committed by Yu-Ping Wu
parent 511884e7e8
commit 4ac8598f4b
4 changed files with 461 additions and 0 deletions
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1
src/soc/mediatek/mt8188/Makefile.inc
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@ -30,6 +30,7 @@ romstage-y += ../common/rtc.c ../common/rtc_osc_init.c ../common/rtc_mt6359p.c
ramstage-y += ../common/auxadc.c
ramstage-$(CONFIG_ARM64_USE_ARM_TRUSTED_FIRMWARE) += ../common/bl31.c
ramstage-y += ../common/ddp.c ddp.c
ramstage-y += ../common/devapc.c devapc.c
ramstage-y += ../common/dfd.c
ramstage-y += ../common/dpm.c

162
src/soc/mediatek/mt8188/ddp.c Normal file
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@ -0,0 +1,162 @@
/* SPDX-License-Identifier: GPL-2.0-only OR MIT */
#include <console/console.h>
#include <device/mmio.h>
#include <edid.h>
#include <soc/addressmap.h>
#include <soc/ddp.h>
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_dp_intf0_sel_in,
SEL_IN_DP_INTF0_FROM_DISP_DITHER0);
write32(&mmsys_cfg->mmsys_dither0_sel_out,
SEL_OUT_DISP_DITHER0_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_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 ovl_layer_en(u32 idx)
{
setbits32(&disp_ovl[idx]->en, BIT(0));
}
static void ccorr_config(u32 width, u32 height)
{
struct disp_ccorr_regs *const regs = disp_ccorr;
write32(&regs->size, width << 16 | height);
clrsetbits32(&regs->cfg, PQ_ENGINE_EN, PQ_RELAY_MODE);
write32(&regs->en, PQ_EN);
}
static void aal_config(u32 width, u32 height)
{
struct disp_aal_regs *const regs = disp_aal;
write32(&regs->size, width << 16 | height);
write32(&regs->output_size, width << 16 | height);
clrsetbits32(&regs->cfg, PQ_ENGINE_EN, PQ_RELAY_MODE);
write32(&regs->en, PQ_EN);
}
static void gamma_config(u32 width, u32 height)
{
struct disp_gamma_regs *const regs = disp_gamma;
write32(&regs->size, width << 16 | height);
setbits32(&regs->cfg, PQ_RELAY_MODE);
write32(&regs->en, PQ_EN);
}
static void postmask_config(u32 width, u32 height)
{
struct disp_postmask_regs *const regs = disp_postmask;
write32(&regs->size, width << 16 | height);
setbits32(&regs->cfg, PQ_RELAY_MODE);
write32(&regs->en, PQ_EN);
}
static void dither_config(u32 width, u32 height)
{
struct disp_dither_regs *const regs = disp_dither;
write32(&regs->size, width << 16 | height);
setbits32(&regs->cfg, PQ_RELAY_MODE);
write32(&regs->en, PQ_EN);
}
static void main_disp_path_setup(u32 width, u32 height, u32 vrefresh)
{
u32 idx;
const 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);
ovl_layer_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);
postmask_config(width, height);
dither_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. */
write32p(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);
}

12
src/soc/mediatek/mt8188/include/soc/addressmap.h
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@ -88,5 +88,17 @@ enum {
I2C6_BASE = IO_PHYS + 0x01EC1000,
EFUSE_BASE = IO_PHYS + 0x01F20000,
MSDC0_TOP_BASE = IO_PHYS + 0x01F50000,
DISP_OVL0_BASE = IO_PHYS + 0x0C000000,
DISP_RDMA0_BASE = IO_PHYS + 0x0C002000,
DISP_COLOR0_BASE = IO_PHYS + 0x0C003000,
DISP_CCORR0_BASE = IO_PHYS + 0x0C004000,
DISP_AAL0_BASE = IO_PHYS + 0x0C005000,
DISP_GAMMA0_BASE = IO_PHYS + 0x0C006000,
DISP_DITHER0_BASE = IO_PHYS + 0x0C007000,
DISP_OVL1_BASE = IO_PHYS + 0x0C00A000,
DISP_MUTEX_BASE = IO_PHYS + 0x0C016000,
DISP_POSTMASK0_BASE = IO_PHYS + 0x0C01A000,
VDOSYS0_BASE = IO_PHYS + 0x0C01D000,
SMI_LARB0 = IO_PHYS + 0x0C022000,
};
#endif

286
src/soc/mediatek/mt8188/include/soc/ddp.h Normal file
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@ -0,0 +1,286 @@
/* SPDX-License-Identifier: GPL-2.0-only OR MIT */
#ifndef _SOC_MEDIATEK_MT8188_DDP_H_
#define _SOC_MEDIATEK_MT8188_DDP_H_
#include <soc/addressmap.h>
#include <soc/ddp_common.h>
#include <types.h>
#define MAIN_PATH_OVL_NR 1
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 */
u32 mmsys_dsi0_sel_in; /* 0xF44 */
u32 reserved_0xf48; /* 0xF48 */
u32 mmsys_dp_intf0_sel_in; /* 0xF4C */
u32 reserved_0xf50; /* 0xF50 */
u32 reserved_0xf54; /* 0xF54 */
u32 mmsys_dither0_sel_out; /* 0xF58 */
};
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_CCORR0 = BIT(4),
CG_CON0_DISP_MUTEX0 = BIT(6),
CG_CON0_DISP_GAMMA0 = BIT(8),
CG_CON0_DISP_DITHER0 = BIT(10),
CG_CON0_DISP_RDMA0 = BIT(19),
CG_CON0_DISP_DSI0 = BIT(21),
CG_CON0_DISP_DSC_WRAP0 = BIT(23),
CG_CON0_DISP_VPP_MERGE0 = BIT(24),
CG_CON0_DISP_DP_INTF0 = BIT(25),
CG_CON0_DISP_AAL0 = BIT(26),
CG_CON0_DISP_COLOR0 = BIT(29),
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_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_DISP_POSTMASK0 = BIT(0),
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_DISP_POSTMASK0 |
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_DISP_ALL = CG_CON2_DP_INTF0,
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_DSI0_FROM_DSC_WRAP0_OUT = (0 << 0),
SEL_IN_DSI0_FROM_DISP_DITHER0 = (1 << 0),
};
enum {
SEL_IN_DP_INTF0_FROM_DSC_WRAP0C1_OUT = (0 << 0),
SEL_IN_DP_INTF0_FROM_VPP_MERGE = (1 << 0),
SEL_IN_DP_INTF0_FROM_DISP_DITHER0 = (3 << 0),
};
enum {
SEL_OUT_DISP_DITHER0_TO_DSC_WRAP0_IN = (0 << 0),
SEL_OUT_DISP_DITHER0_TO_DSI0 = (1 << 0),
SEL_OUT_DISP_DITHER0_TO_VPP_MERGE0 = (6 << 0),
SEL_OUT_DISP_DITHER0_TO_DP_INTF0 = (7 << 0),
};
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_POSTMASK0 = BIT(24),
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_POSTMASK0 |
MUTEX_MOD_DISP_DITHER0,
};
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_postmask_regs {
u32 en;
u32 reserved0[7];
u32 cfg;
u32 reserved1[3];
u32 size;
};
check_member(disp_postmask_regs, size, 0x30);
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);
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_postmask_regs *const disp_postmask = (void *)DISP_POSTMASK0_BASE;
static struct disp_dither_regs *const disp_dither = (void *)DISP_DITHER0_BASE;
enum {
SMI_LARB_PORT_L0_OVL_RDMA0 = 0xF88,
};
void mtk_ddp_init(void);
void mtk_ddp_mode_set(const struct edid *edid);
#endif