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-rw-r--r--src/soc/mediatek/common/dsi.c6
-rw-r--r--src/soc/mediatek/common/include/soc/dsi_common.h23
-rw-r--r--src/soc/mediatek/mt8173/include/soc/dsi.h1
-rw-r--r--src/soc/mediatek/mt8183/Makefile.inc1
-rw-r--r--src/soc/mediatek/mt8183/dsi.c88
-rw-r--r--src/soc/mediatek/mt8183/include/soc/addressmap.h2
-rw-r--r--src/soc/mediatek/mt8183/include/soc/dsi.h68
7 files changed, 187 insertions, 2 deletions
diff --git a/src/soc/mediatek/common/dsi.c b/src/soc/mediatek/common/dsi.c
index fffe51f708..166bc17eee 100644
--- a/src/soc/mediatek/common/dsi.c
+++ b/src/soc/mediatek/common/dsi.c
@@ -248,6 +248,12 @@ static void mtk_dsi_config_vdo_timing(u32 mode_flags, u32 format, u32 lanes,
write32(&dsi0->dsi_psctrl,
PIXEL_STREAM_CUSTOM_HEADER << DSI_PSCON_CUSTOM_HEADER_SHIFT |
packet_fmt);
+
+ /* Older systems like MT8173 do not support size_con. */
+ if (MTK_DSI_HAVE_SIZE_CON)
+ write32(&dsi0->dsi_size_con,
+ edid->mode.va << DSI_SIZE_CON_HEIGHT_SHIFT |
+ hactive << DSI_SIZE_CON_WIDTH_SHIFT);
}
static void mtk_dsi_start(void)
diff --git a/src/soc/mediatek/common/include/soc/dsi_common.h b/src/soc/mediatek/common/include/soc/dsi_common.h
index 3f4a47d1b8..c684aaf940 100644
--- a/src/soc/mediatek/common/include/soc/dsi_common.h
+++ b/src/soc/mediatek/common/include/soc/dsi_common.h
@@ -67,7 +67,11 @@ struct dsi_regs {
u32 dsi_vbp_nl;
u32 dsi_vfp_nl;
u32 dsi_vact_nl;
- u8 reserved1[32];
+ u32 dsi_lfr_con; /* Available since MT8183 */
+ u32 dsi_lfr_sta; /* Available since MT8183 */
+ u32 dsi_size_con; /* Available since MT8183 */
+ u32 dsi_vfp_early_stop; /* Available since MT8183 */
+ u32 reserved1[4];
u32 dsi_hsa_wc;
u32 dsi_hbp_wc;
u32 dsi_hfp_wc;
@@ -84,7 +88,9 @@ struct dsi_regs {
u32 dsi_phy_timecon3;
u8 reserved4[16];
u32 dsi_vm_cmd_con;
- u8 reserved5[204];
+ u8 reserved5[92];
+ u32 dsi_force_commit; /* Available since MT8183 */
+ u8 reserved6[108];
u32 dsi_cmdq[128];
};
static struct dsi_regs *const dsi0 = (void *)DSI0_BASE;
@@ -92,6 +98,7 @@ static struct dsi_regs *const dsi0 = (void *)DSI0_BASE;
check_member(dsi_regs, dsi_phy_lccon, 0x104);
check_member(dsi_regs, dsi_phy_timecon3, 0x11c);
check_member(dsi_regs, dsi_vm_cmd_con, 0x130);
+check_member(dsi_regs, dsi_force_commit, 0x190);
check_member(dsi_regs, dsi_cmdq, 0x200);
/* DSI_INTSTA */
@@ -134,6 +141,12 @@ enum {
DSI_PSCON_CUSTOM_HEADER_SHIFT = 26,
};
+/* DSI_SIZE_CON */
+enum {
+ DSI_SIZE_CON_HEIGHT_SHIFT = 16,
+ DSI_SIZE_CON_WIDTH_SHIFT = 0,
+};
+
/* DSI_CMDQ_SIZE */
enum {
CMDQ_SIZE = 0x3f,
@@ -196,6 +209,12 @@ enum {
DATA_1 = (0xff << 24),
};
+/* DSI_FORCE_COMMIT */
+enum {
+ DSI_FORCE_COMMIT_USE_MMSYS = BIT(0),
+ DSI_FORCE_COMMIT_ALWAYS = BIT(1),
+};
+
/* MIPI DSI Processor-to-Peripheral transaction types */
enum {
MIPI_DSI_V_SYNC_START = 0x01,
diff --git a/src/soc/mediatek/mt8173/include/soc/dsi.h b/src/soc/mediatek/mt8173/include/soc/dsi.h
index 43cbdcb909..e7c1d28b1f 100644
--- a/src/soc/mediatek/mt8173/include/soc/dsi.h
+++ b/src/soc/mediatek/mt8173/include/soc/dsi.h
@@ -22,6 +22,7 @@
#define MTK_DSI_MIPI_RATIO_NUMERATOR 102
#define MTK_DSI_MIPI_RATIO_DENOMINATOR 100
#define MTK_DSI_DATA_RATE_MIN_MHZ 50
+#define MTK_DSI_HAVE_SIZE_CON 0
#define PIXEL_STREAM_CUSTOM_HEADER 0
/* MIPITX is SOC specific and cannot live in common. */
diff --git a/src/soc/mediatek/mt8183/Makefile.inc b/src/soc/mediatek/mt8183/Makefile.inc
index 45276835af..cac793fc90 100644
--- a/src/soc/mediatek/mt8183/Makefile.inc
+++ b/src/soc/mediatek/mt8183/Makefile.inc
@@ -46,6 +46,7 @@ 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/dsi.c dsi.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/dsi.c b/src/soc/mediatek/mt8183/dsi.c
new file mode 100644
index 0000000000..daa06caeae
--- /dev/null
+++ b/src/soc/mediatek/mt8183/dsi.c
@@ -0,0 +1,88 @@
+/*
+ * 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 <assert.h>
+#include <device/mmio.h>
+#include <console/console.h>
+#include <delay.h>
+#include <soc/dsi.h>
+#include <soc/pll.h>
+
+void mtk_dsi_configure_mipi_tx(int data_rate, u32 lanes)
+{
+ unsigned int txdiv, txdiv0, txdiv1;
+ u64 pcw;
+
+ if (data_rate >= 2000) {
+ txdiv = 1;
+ txdiv0 = 0;
+ txdiv1 = 0;
+ } else if (data_rate >= 1000) {
+ txdiv = 2;
+ txdiv0 = 1;
+ txdiv1 = 0;
+ } else if (data_rate >= 500) {
+ txdiv = 4;
+ txdiv0 = 2;
+ txdiv1 = 0;
+ } else if (data_rate > 250) {
+ /* Be aware that 250 is a special case that must use txdiv=4. */
+ txdiv = 8;
+ txdiv0 = 3;
+ txdiv1 = 0;
+ } else {
+ /* MIN = 125 */
+ assert(data_rate >= MTK_DSI_DATA_RATE_MIN_MHZ);
+ txdiv = 16;
+ txdiv0 = 4;
+ txdiv1 = 0;
+ }
+
+ clrbits_le32(&mipi_tx->pll_con4, BIT(11) | BIT(10));
+ setbits_le32(&mipi_tx->pll_pwr, AD_DSI_PLL_SDM_PWR_ON);
+ udelay(30);
+ clrbits_le32(&mipi_tx->pll_pwr, AD_DSI_PLL_SDM_ISO_EN);
+
+ pcw = (u64)data_rate * (1 << txdiv0) * (1 << txdiv1);
+ pcw <<= 24;
+ pcw /= CLK26M_HZ / MHz;
+
+ write32(&mipi_tx->pll_con0, pcw);
+ clrsetbits_le32(&mipi_tx->pll_con1, RG_DSI_PLL_POSDIV, txdiv0 << 8);
+ udelay(30);
+ setbits_le32(&mipi_tx->pll_con1, RG_DSI_PLL_EN);
+
+ /* BG_LPF_EN / BG_CORE_EN */
+ write32(&mipi_tx->lane_con, 0x3fff0180);
+ udelay(40);
+ write32(&mipi_tx->lane_con, 0x3fff00c0);
+
+ /* Switch OFF each Lane */
+ clrbits_le32(&mipi_tx->d0_sw_ctl_en, DSI_SW_CTL_EN);
+ clrbits_le32(&mipi_tx->d1_sw_ctl_en, DSI_SW_CTL_EN);
+ clrbits_le32(&mipi_tx->d2_sw_ctl_en, DSI_SW_CTL_EN);
+ clrbits_le32(&mipi_tx->d3_sw_ctl_en, DSI_SW_CTL_EN);
+ clrbits_le32(&mipi_tx->ck_sw_ctl_en, DSI_SW_CTL_EN);
+
+ setbits_le32(&mipi_tx->ck_ckmode_en, DSI_CK_CKMODE_EN);
+}
+
+void mtk_dsi_reset(void)
+{
+ write32(&dsi0->dsi_force_commit,
+ DSI_FORCE_COMMIT_USE_MMSYS | DSI_FORCE_COMMIT_ALWAYS);
+ write32(&dsi0->dsi_con_ctrl, 1);
+ write32(&dsi0->dsi_con_ctrl, 0);
+}
diff --git a/src/soc/mediatek/mt8183/include/soc/addressmap.h b/src/soc/mediatek/mt8183/include/soc/addressmap.h
index bb44f9bb45..c267a1473e 100644
--- a/src/soc/mediatek/mt8183/include/soc/addressmap.h
+++ b/src/soc/mediatek/mt8183/include/soc/addressmap.h
@@ -51,6 +51,7 @@ enum {
IOCFG_RT_BASE = IO_PHYS + 0x01C50000,
IOCFG_RM_BASE = IO_PHYS + 0x01D20000,
IOCFG_RB_BASE = IO_PHYS + 0x01D30000,
+ MIPITX_BASE = IO_PHYS + 0x01E50000,
IOCFG_LB_BASE = IO_PHYS + 0x01E70000,
IOCFG_LM_BASE = IO_PHYS + 0x01E80000,
IOCFG_BL_BASE = IO_PHYS + 0x01E90000,
@@ -69,6 +70,7 @@ enum {
DISP_AAL0_BASE = IO_PHYS + 0x04010000,
DISP_GAMMA0_BASE = IO_PHYS + 0x04011000,
DISP_DITHER0_BASE = IO_PHYS + 0x04012000,
+ DSI0_BASE = IO_PHYS + 0x04014000,
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/dsi.h b/src/soc/mediatek/mt8183/include/soc/dsi.h
new file mode 100644
index 0000000000..8813f94982
--- /dev/null
+++ b/src/soc/mediatek/mt8183/include/soc/dsi.h
@@ -0,0 +1,68 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2015 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 SOC_MEDIATEK_MT8183_DSI_H
+#define SOC_MEDIATEK_MT8183_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
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 23:08:49 +0000