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authorYongqiang Niu <yongqiang.niu@mediatek.com>2019-02-20 14:29:31 +0800
committerJulius Werner <jwerner@chromium.org>2019-08-09 05:42:29 +0000
commit84d5d65bcee25c90314d9206d5a383379d1fc56a (patch)
treed3e720c729a348ae5ba0433107f23898e8f5d84d /src
parent7ece24634c4c5b360b515f63861361daee8f0537 (diff)
downloadcoreboot-84d5d65bcee25c90314d9206d5a383379d1fc56a.tar.xz
soc/mediatek/mt8183: Add display controller driver
The MT8183 SOC has a DISP (display controller) that supports overlay, read/write DMA, ... etc. The output of DISP goes to display interface DSI, DPI or DBI directly. Reference: MT8183 Application Processor Functional Spec, 6.1 Display Controller BUG=b:80501386,b:117254947 BRANCH=none TEST=Boots correctly on Kukui Change-Id: Ic4aecc58d081f14f5d136b9ff8e813e6f40f78eb Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/31478 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org>
Diffstat (limited to 'src')
-rw-r--r--src/soc/mediatek/mt8183/Makefile.inc1
-rw-r--r--src/soc/mediatek/mt8183/ddp.c103
-rw-r--r--src/soc/mediatek/mt8183/include/soc/addressmap.h13
-rw-r--r--src/soc/mediatek/mt8183/include/soc/ddp.h197
4 files changed, 314 insertions, 0 deletions
diff --git a/src/soc/mediatek/mt8183/Makefile.inc b/src/soc/mediatek/mt8183/Makefile.inc
index 2a65c35ea3..45276835af 100644
--- a/src/soc/mediatek/mt8183/Makefile.inc
+++ b/src/soc/mediatek/mt8183/Makefile.inc
@@ -45,6 +45,7 @@ romstage-y += ../common/wdt.c
ramstage-y += auxadc.c
ramstage-y += ../common/cbmem.c emi.c
+ramstage-y += ../common/ddp.c ddp.c
ramstage-y += ../common/gpio.c gpio.c
ramstage-y += ../common/i2c.c i2c.c
ramstage-y += ../common/mmu_operations.c mmu_operations.c
diff --git a/src/soc/mediatek/mt8183/ddp.c b/src/soc/mediatek/mt8183/ddp.c
new file mode 100644
index 0000000000..0ae0be1815
--- /dev/null
+++ b/src/soc/mediatek/mt8183/ddp.c
@@ -0,0 +1,103 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2019 MediaTek Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <device/mmio.h>
+#include <edid.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stddef.h>
+#include <soc/addressmap.h>
+#include <soc/ddp.h>
+
+static void disp_config_main_path_connection(void)
+{
+ write32(&mmsys_cfg->disp_ovl0_mout_en, OVL0_MOUT_EN_OVL0_2L);
+ write32(&mmsys_cfg->disp_ovl0_2l_mout_en, OVL0_2L_MOUT_EN_DISP_PATH0);
+ write32(&mmsys_cfg->disp_path0_sel_in, DISP_PATH0_SEL_IN_OVL0_2L);
+ write32(&mmsys_cfg->disp_rdma0_sout_sel_in, RDMA0_SOUT_SEL_IN_COLOR);
+ write32(&mmsys_cfg->disp_dither0_mout_en, DITHER0_MOUT_EN_DISP_DSI0);
+ write32(&mmsys_cfg->dsi0_sel_in, DSI0_SEL_IN_DITHER0_MOUT);
+}
+
+static void disp_config_main_path_mutex(void)
+{
+ write32(&disp_mutex->mutex[0].mod, MUTEX_MOD_MAIN_PATH);
+
+ /* Clock source from DSI0 */
+ write32(&disp_mutex->mutex[0].ctl,
+ MUTEX_SOF_DSI0 | (MUTEX_SOF_DSI0 << 6));
+ write32(&disp_mutex->mutex[0].en, BIT(0));
+}
+
+static void ovl_bgclr_in_sel(u32 idx)
+{
+ setbits_le32(&disp_ovl[idx]->datapath_con, BIT(2));
+}
+
+static void enable_pq(struct disp_pq_regs *const regs, u32 width, u32 height,
+ int enable_relay)
+{
+ write32(&regs->size, height << 16 | width);
+ if (enable_relay)
+ write32(&regs->cfg, PQ_RELAY_MODE);
+ write32(&regs->en, PQ_EN);
+}
+
+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);
+
+ rdma_config(width, height, pixel_clk, 5 * KiB);
+ color_start(width, height);
+ enable_pq(disp_ccorr, width, height, 1);
+ enable_pq(disp_aal, width, height, 0);
+ enable_pq(disp_gamma, width, height, 0);
+ enable_pq(disp_dither, width, height, 1);
+ disp_config_main_path_connection();
+ disp_config_main_path_mutex();
+}
+
+static void disp_clock_on(void)
+{
+ clrbits_le32(&mmsys_cfg->mmsys_cg_con0, CG_CON0_DISP_ALL);
+
+ clrbits_le32(&mmsys_cfg->mmsys_cg_con1, CG_CON1_DISP_DSI0 |
+ CG_CON1_DISP_DSI0_INTERFACE);
+}
+
+void mtk_ddp_init(void)
+{
+ disp_clock_on();
+ /* Turn off M4U port. */
+ write32((void *)(SMI_LARB0 + SMI_LARB_NON_SEC_CON), 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;
+
+ 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/mt8183/include/soc/addressmap.h b/src/soc/mediatek/mt8183/include/soc/addressmap.h
index 5a4784d03d..bb44f9bb45 100644
--- a/src/soc/mediatek/mt8183/include/soc/addressmap.h
+++ b/src/soc/mediatek/mt8183/include/soc/addressmap.h
@@ -58,6 +58,19 @@ enum {
IOCFG_LT_BASE = IO_PHYS + 0x01F20000,
IOCFG_TL_BASE = IO_PHYS + 0x01F30000,
SSUSB_SIF_BASE = IO_PHYS + 0x01F40300,
+ MMSYS_BASE = IO_PHYS + 0x04000000,
+ DISP_OVL0_BASE = IO_PHYS + 0x04008000,
+ DISP_OVL1_BASE = IO_PHYS + 0x04009000,
+ DISP_OVL1_2L_BASE = IO_PHYS + 0x0400A000,
+ DISP_RDMA0_BASE = IO_PHYS + 0x0400B000,
+ DISP_RDMA1_BASE = IO_PHYS + 0x0400C000,
+ DISP_COLOR0_BASE = IO_PHYS + 0x0400E000,
+ DISP_CCORR0_BASE = IO_PHYS + 0x0400F000,
+ DISP_AAL0_BASE = IO_PHYS + 0x04010000,
+ DISP_GAMMA0_BASE = IO_PHYS + 0x04011000,
+ DISP_DITHER0_BASE = IO_PHYS + 0x04012000,
+ DISP_MUTEX_BASE = IO_PHYS + 0x04016000,
+ SMI_LARB0 = IO_PHYS + 0x04017000,
SMI_BASE = IO_PHYS + 0x04019000,
};
diff --git a/src/soc/mediatek/mt8183/include/soc/ddp.h b/src/soc/mediatek/mt8183/include/soc/ddp.h
new file mode 100644
index 0000000000..479417c77e
--- /dev/null
+++ b/src/soc/mediatek/mt8183/include/soc/ddp.h
@@ -0,0 +1,197 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2019 MediaTek Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _MT8183_SOC_DDP_H_
+#define _MT8183_SOC_DDP_H_
+
+#include <soc/addressmap.h>
+#include <soc/ddp_common.h>
+#include <types.h>
+
+#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[889]; /* 0x11C */
+ u32 disp_ovl0_mout_en; /* 0xF00 */
+ u32 disp_ovl0_2l_mout_en; /* 0xF04 */
+ u32 disp_ovl1_2l_mout_en; /* 0xF08 */
+ u32 disp_dither0_mout_en; /* 0xF0C */
+ u32 reserved_0xF10[5]; /* 0xF10 - 0xF20 */
+ u32 disp_path0_sel_in; /* 0xF24 */
+ u32 reserved_0xF28; /* 0xF28 */
+ u32 dsi0_sel_in; /* 0xF2C */
+ u32 dpi0_sel_in; /* 0xF30 */
+ u32 reserved_0xF34; /* 0xF34 */
+ u32 disp_ovl0_2l_sel_in; /* 0xF38 */
+ u32 reserved_0xF3C[5]; /* 0xF3C - 0xF4C */
+ u32 disp_rdma0_sout_sel_in; /* 0xF50 */
+ u32 disp_rdma1_sout_sel_in; /* 0xF54 */
+ u32 reserved_0xF58[3]; /* 0xF58 - 0xF60 */
+ u32 dpi0_sel_sout_sel_in; /* 0xF64 */
+};
+
+check_member(mmsys_cfg_regs, mmsys_cg_con0, 0x100);
+check_member(mmsys_cfg_regs, dpi0_sel_sout_sel_in, 0xF64);
+static struct mmsys_cfg_regs *const mmsys_cfg =
+ (void *)MMSYS_BASE;
+
+
+/* DISP_REG_CONFIG_MMSYS_CG_CON0
+ Configures free-run clock gating 0
+ 0: Enable clock
+ 1: Clock gating */
+enum {
+ CG_CON0_SMI_COMMON = BIT(0),
+ CG_CON0_SMI_LARB0 = BIT(1),
+ CG_CON0_GALS_COMMON0 = BIT(3),
+ CG_CON0_GALS_COMMON1 = BIT(4),
+ CG_CON0_DISP_OVL0 = BIT(20),
+ CG_CON0_DISP_OVL0_2L = BIT(21),
+ CG_CON0_DISP_OVL1_2L = BIT(22),
+ CG_CON0_DISP_RDMA0 = BIT(23),
+ CG_CON0_DISP_RDMA1 = BIT(24),
+ CG_CON0_DISP_WDMA0 = BIT(25),
+ CG_CON0_DISP_COLOR0 = BIT(26),
+ CG_CON0_DISP_CCORR0 = BIT(27),
+ CG_CON0_DISP_AAL0 = BIT(28),
+ CG_CON0_DISP_GAMMA0 = BIT(29),
+ CG_CON0_DISP_DITHER0 = BIT(30),
+ CG_CON0_DISP_ALL = CG_CON0_SMI_COMMON |
+ CG_CON0_SMI_LARB0 |
+ CG_CON0_GALS_COMMON0 |
+ CG_CON0_GALS_COMMON1 |
+ CG_CON0_DISP_OVL0 |
+ CG_CON0_DISP_OVL0_2L |
+ CG_CON0_DISP_RDMA0 |
+ CG_CON0_DISP_COLOR0 |
+ CG_CON0_DISP_CCORR0 |
+ CG_CON0_DISP_AAL0 |
+ CG_CON0_DISP_DITHER0 |
+ CG_CON0_DISP_GAMMA0,
+ CG_CON0_ALL = 0xffffffff
+};
+
+/* DISP_REG_CONFIG_MMSYS_CG_CON1
+ Configures free-run clock gating 1
+ 0: Enable clock
+ 1: Clock gating */
+enum {
+ CG_CON1_DISP_DSI0 = BIT(0),
+ CG_CON1_DISP_DSI0_INTERFACE = BIT(1),
+ CG_CON1_DISP_26M = BIT(7),
+
+ CG_CON1_ALL = 0xffffffff
+};
+
+enum {
+ OVL0_MOUT_EN_RDMA0 = BIT(0),
+ OVL0_MOUT_EN_OVL0_2L = BIT(4),
+ OVL0_2L_MOUT_EN_DISP_PATH0 = BIT(0),
+ OVL1_2L_MOUT_EN_DISP_RDMA1 = BIT(4),
+ DITHER0_MOUT_EN_DISP_DSI0 = BIT(0),
+};
+
+enum {
+ DISP_PATH0_SEL_IN_OVL0 = 0,
+ DISP_PATH0_SEL_IN_OVL0_2L = 1,
+ DSI0_SEL_IN_DITHER0_MOUT = 0,
+ DSI0_SEL_IN_RDMA0 = 1,
+ RDMA0_SOUT_SEL_IN_DSI0 = 0,
+ RDMA0_SOUT_SEL_IN_COLOR = 1,
+};
+
+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_RDMA0 = BIT(0),
+ MUTEX_MOD_DISP_RDMA1 = BIT(1),
+ MUTEX_MOD_DISP_OVL0 = BIT(9),
+ MUTEX_MOD_DISP_OVL0_2L = BIT(10),
+ MUTEX_MOD_DISP_OVL1_2L = BIT(11),
+ MUTEX_MOD_DISP_WDMA0 = BIT(12),
+ MUTEX_MOD_DISP_COLOR0 = BIT(13),
+ MUTEX_MOD_DISP_CCORR0 = BIT(14),
+ MUTEX_MOD_DISP_AAL0 = BIT(15),
+ MUTEX_MOD_DISP_GAMMA0 = BIT(16),
+ MUTEX_MOD_DISP_DITHER0 = BIT(17),
+ MUTEX_MOD_DISP_PWM0 = BIT(28),
+ MUTEX_MOD_MAIN_PATH = MUTEX_MOD_DISP_OVL0 | MUTEX_MOD_DISP_OVL0_2L |
+ MUTEX_MOD_DISP_RDMA0 | MUTEX_MOD_DISP_COLOR0 |
+ MUTEX_MOD_DISP_CCORR0 | MUTEX_MOD_DISP_AAL0 |
+ MUTEX_MOD_DISP_GAMMA0 |
+ MUTEX_MOD_DISP_DITHER0,
+};
+
+enum {
+ MUTEX_SOF_SINGLE_MODE = 0,
+ MUTEX_SOF_DSI0 = 1,
+ MUTEX_SOF_DPI0 = 2,
+};
+
+struct disp_pq_regs {
+ u32 en;
+ u32 reset;
+ u32 inten;
+ u32 intsta;
+ u32 status;
+ u32 reserved0[3];
+ u32 cfg;
+ u32 reserved1[3];
+ u32 size;
+};
+
+enum {
+ PQ_EN = BIT(0),
+ PQ_RELAY_MODE = BIT(0),
+};
+
+static struct disp_pq_regs *const disp_ccorr = (void *)DISP_CCORR0_BASE;
+
+static struct disp_pq_regs *const disp_aal = (void *)DISP_AAL0_BASE;
+
+static struct disp_pq_regs *const disp_gamma = (void *)DISP_GAMMA0_BASE;
+
+static struct disp_pq_regs *const disp_dither = (void *)DISP_DITHER0_BASE;
+
+enum {
+ SMI_LARB_NON_SEC_CON = 0x380,
+};
+
+void mtk_ddp_init(void);
+void mtk_ddp_mode_set(const struct edid *edid);
+
+#endif