jitao shi has uploaded this change for review.
mediaek/mt8183: add dsi driver for mt8183
BUG=b:80501386,b:117254947
BRANCH=none
TEST=Boots correctly on Kukui
Change-Id: Ic413f524ca0b36f0b01f723a71fe9745e2710cd2
Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
---
M src/soc/mediatek/mt8183/Makefile.inc
A src/soc/mediatek/mt8183/dsi.c
M src/soc/mediatek/mt8183/include/soc/addressmap.h
A src/soc/mediatek/mt8183/include/soc/dsi.h
4 files changed, 957 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/91/31591/1
diff --git a/src/soc/mediatek/mt8183/Makefile.inc b/src/soc/mediatek/mt8183/Makefile.inc
index b7e2ca4..02eaf6b 100644
--- a/src/soc/mediatek/mt8183/Makefile.inc
+++ b/src/soc/mediatek/mt8183/Makefile.inc
@@ -41,6 +41,7 @@
ramstage-y += auxadc.c
ramstage-y += ../common/cbmem.c emi.c
ramstage-y += ddp.c
+ramstage-y += dsi.c
ramstage-y += ../common/gpio.c gpio.c
ramstage-y += ../common/mmu_operations.c mmu_operations.c
ramstage-y += ../common/mtcmos.c mtcmos.c
diff --git a/src/soc/mediatek/mt8183/dsi.c b/src/soc/mediatek/mt8183/dsi.c
new file mode 100644
index 0000000..f96d847
--- /dev/null
+++ b/src/soc/mediatek/mt8183/dsi.c
@@ -0,0 +1,470 @@
+/*
+ * 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.
+ */
+
+#include <arch/io.h>
+#include <console/console.h>
+#include <delay.h>
+#include <soc/addressmap.h>
+#include <soc/dsi.h>
+#include <timer.h>
+
+static void mipi_write32(void *a, uint32_t offset, uint32_t v)
+{
+ write32(a + offset, v);
+}
+
+static void mipi_clrsetbits_le32(void *a, uint32_t offset, uint32_t m, uint32_t v)
+{
+ clrsetbits_le32(a + offset, m, v);
+}
+
+static void mipi_clrbits_le32(void *a, uint32_t offset, uint32_t m)
+{
+ clrbits_le32(a + offset, m);
+}
+
+static void mipi_setbits_le32(void *a, uint32_t offset, uint32_t m)
+{
+ setbits_le32(a + offset, m);
+}
+
+static void dsi_write32(void *a, uint32_t v)
+{
+ write32(a, v);
+}
+
+static void dsi_clrsetbits_le32(void *a, uint32_t m, uint32_t v)
+{
+ clrsetbits_le32(a, m, v);
+}
+
+static void dsi_clrbits_le32(void *a, uint32_t m)
+{
+ clrbits_le32(a, m);
+}
+
+static void dsi_setbits_le32(void *a, uint32_t m)
+{
+ setbits_le32(a, m);
+}
+
+static int mtk_dsi_phy_clk_setting(u32 format, u32 lanes,
+ const struct edid *edid, struct mtk_phy_timing *phy_timing)
+{
+ unsigned int txdiv, txdiv0, txdiv1;
+ u64 pcw;
+ int data_rate;
+ u32 htotal, htotal_bits, bit_per_pixel, overhead_cycles, overhead_bits;
+ u64 total_bits;
+
+ switch (format) {
+ case MIPI_DSI_FMT_RGB565:
+ bit_per_pixel = 16;
+ break;
+ case MIPI_DSI_FMT_RGB666:
+ case MIPI_DSI_FMT_RGB666_PACKED:
+ bit_per_pixel = 18;
+ break;
+ case MIPI_DSI_FMT_RGB888:
+ default:
+ bit_per_pixel = 24;
+ break;
+ }
+
+ htotal = edid->mode.hbl + edid->mode.ha;
+ htotal_bits = htotal * bit_per_pixel;
+
+ overhead_cycles = 2 * phy_timing->lpx + phy_timing->da_hs_prepare +
+ phy_timing->da_hs_zero + phy_timing->da_hs_trail +
+ phy_timing->da_hs_exit + 1;
+
+ overhead_bits = overhead_cycles * 8U;
+ total_bits = htotal_bits + overhead_bits;
+
+ data_rate = (u64)(edid->mode.pixel_clock * 1000 * total_bits) / (htotal * lanes);
+
+ printk(BIOS_ERR, "data_rate: %u bps\n", data_rate);
+
+ if (data_rate >= 2000000000) {
+ txdiv = 1;
+ txdiv0 = 0;
+ txdiv1 = 0;
+ } else if (data_rate >= 1000000000) {
+ txdiv = 2;
+ txdiv0 = 1;
+ txdiv1 = 0;
+ } else if (data_rate >= 500000000) {
+ txdiv = 4;
+ txdiv0 = 2;
+ txdiv1 = 0;
+ } else if (data_rate > 250000000) {
+ txdiv = 8;
+ txdiv0 = 3;
+ txdiv1 = 0;
+ } else if (data_rate >= 125000000) {
+ txdiv = 16;
+ txdiv0 = 4;
+ txdiv1 = 0;
+ } else {
+ printk(BIOS_ERR, "data rate (%u) must be >=50. Please check "
+ "pixel clock (%u), bpp (%u), and number of lanes (%u)\n",
+ data_rate, edid->mode.pixel_clock, bit_per_pixel, lanes);
+ return -1;
+ }
+
+ mipi_clrbits_le32(mipi_tx, MIPITX_PLL_CON4, BIT(11) | BIT(10));
+
+ mipi_setbits_le32(mipi_tx, MIPITX_PLL_PWR, AD_DSI_PLL_SDM_PWR_ON);
+ udelay(30);
+ mipi_clrbits_le32(mipi_tx, MIPITX_PLL_PWR, AD_DSI_PLL_SDM_ISO_EN);
+
+ pcw = (u64)((data_rate / 1000000) * (1 << txdiv0) * (1 << txdiv1)) << 24;
+ pcw /= 26;
+
+ mipi_write32(mipi_tx, MIPITX_PLL_CON0, pcw);
+ mipi_clrsetbits_le32(mipi_tx, MIPITX_PLL_CON1, RG_DSI_PLL_POSDIV,
+ txdiv0 << 8);
+ udelay(30);
+ mipi_setbits_le32(mipi_tx, MIPITX_PLL_CON1, RG_DSI_PLL_EN);
+
+ /* BG_LPF_EN / BG_CORE_EN */
+ mipi_write32(mipi_tx, MIPITX_LANE_CON, 0x3FFF0180);
+ udelay(40);
+ mipi_write32(mipi_tx, MIPITX_LANE_CON, 0x3FFF00c0);
+
+ /* Switch OFF each Lane */
+ mipi_clrbits_le32(mipi_tx, MIPITX_D0_SW_CTL_EN, DSI_SW_CTL_EN);
+ mipi_clrbits_le32(mipi_tx, MIPITX_D1_SW_CTL_EN, DSI_SW_CTL_EN);
+ mipi_clrbits_le32(mipi_tx, MIPITX_D2_SW_CTL_EN, DSI_SW_CTL_EN);
+ mipi_clrbits_le32(mipi_tx, MIPITX_D3_SW_CTL_EN, DSI_SW_CTL_EN);
+ mipi_clrbits_le32(mipi_tx, MIPITX_CK_SW_CTL_EN, DSI_SW_CTL_EN);
+
+ mipi_setbits_le32(mipi_tx, MIPITX_CK_CKMODE_EN, DSI_CK_CKMODE_EN);
+
+ return data_rate;
+}
+
+static void mtk_dsi_phy_timconfig(u32 data_rate, struct mtk_phy_timing *phy_timing)
+{
+ u32 timcon0, timcon1, timcon2, timcon3;
+
+ timcon0 = phy_timing->lpx | phy_timing->da_hs_prepare << 8 |
+ phy_timing->da_hs_zero << 16 | phy_timing->da_hs_trail << 24;
+ timcon1 = phy_timing->ta_go | phy_timing->ta_sure << 8 |
+ phy_timing->ta_get << 16 | phy_timing->da_hs_exit << 24;
+ timcon2 = 1 << 8 | phy_timing->clk_hs_zero << 16 |
+ phy_timing->clk_hs_trail << 24;
+ timcon3 = phy_timing->clk_hs_prepare | phy_timing->clk_hs_post << 8 |
+ phy_timing->clk_hs_exit << 16;
+
+ dsi_write32(&dsi->dsi_phy_timecon0, timcon0);
+ dsi_write32(&dsi->dsi_phy_timecon1, timcon1);
+ dsi_write32(&dsi->dsi_phy_timecon2, timcon2);
+ dsi_write32(&dsi->dsi_phy_timecon3, timcon3);
+}
+
+static void mtk_dsi_reset(void)
+{
+ dsi_setbits_le32(&dsi->dsi_con_ctrl, 3);
+ dsi_clrbits_le32(&dsi->dsi_con_ctrl, 1);
+}
+
+static void mtk_dsi_clk_hs_mode_enable(void)
+{
+ dsi_setbits_le32(&dsi->dsi_phy_lccon, LC_HS_TX_EN);
+}
+
+static void mtk_dsi_clk_hs_mode_disable(void)
+{
+ dsi_clrbits_le32(&dsi->dsi_phy_lccon, LC_HS_TX_EN);
+}
+
+static void mtk_dsi_set_mode(u32 mode_flags)
+{
+ u32 tmp_reg1 = 0;
+
+ if (mode_flags & MIPI_DSI_MODE_VIDEO) {
+ tmp_reg1 = SYNC_PULSE_MODE;
+
+ if (mode_flags & MIPI_DSI_MODE_VIDEO_BURST)
+ tmp_reg1 = BURST_MODE;
+
+ if (mode_flags & MIPI_DSI_MODE_VIDEO_SYNC_PULSE)
+ tmp_reg1 = SYNC_PULSE_MODE;
+ }
+
+ dsi_write32(&dsi->dsi_mode_ctrl, tmp_reg1);
+}
+
+static void mtk_dsi_phy_timing_calc(u32 format, u32 lanes,
+ const struct edid *edid, struct mtk_phy_timing *phy_timing)
+{
+ u32 ui, cycle_time, data_rate;
+ u32 bit_per_pixel;
+
+ switch (format) {
+ case MIPI_DSI_FMT_RGB565:
+ bit_per_pixel = 16;
+ break;
+ case MIPI_DSI_FMT_RGB666:
+ case MIPI_DSI_FMT_RGB666_PACKED:
+ bit_per_pixel = 18;
+ break;
+ case MIPI_DSI_FMT_RGB888:
+ default:
+ bit_per_pixel = 24;
+ break;
+ }
+
+ data_rate = edid->mode.pixel_clock * bit_per_pixel / lanes;
+
+ ui = 1000 / (data_rate / 1000) + 1U;
+ cycle_time = 8000 / (data_rate / 1000) + 1U;
+
+ phy_timing->lpx = DIV_ROUND_UP(0x50, cycle_time);
+ phy_timing->da_hs_prepare = DIV_ROUND_UP((0x40 + 0x5 * ui), cycle_time);
+ phy_timing->da_hs_zero = DIV_ROUND_UP((0xc8 + 0x0a * ui), cycle_time);
+ phy_timing->da_hs_trail = DIV_ROUND_UP(((0x4 * ui) + 0x50), cycle_time);
+
+ if (phy_timing->da_hs_zero > phy_timing->da_hs_prepare)
+ phy_timing->da_hs_zero -= phy_timing->da_hs_prepare;
+
+ phy_timing->ta_go = 4U * phy_timing->lpx;
+ phy_timing->ta_sure = 3U * phy_timing->lpx / 2U;
+ phy_timing->ta_get = 5U * phy_timing->lpx;
+ phy_timing->da_hs_exit = 2U * phy_timing->lpx;
+
+ phy_timing->clk_hs_zero = DIV_ROUND_UP(0x150U, cycle_time);
+ phy_timing->clk_hs_trail = DIV_ROUND_UP(0x64U, cycle_time) + 0xaU;
+
+ phy_timing->clk_hs_prepare = DIV_ROUND_UP(0x40U, cycle_time);
+ phy_timing->clk_hs_post = DIV_ROUND_UP(80U + 52U * ui, cycle_time);
+ phy_timing->clk_hs_exit = 2U * phy_timing->lpx;
+}
+
+static void mtk_dsi_rxtx_control(u32 mode_flags, u32 lanes)
+{
+ u32 tmp_reg = 0;
+
+ switch (lanes) {
+ case 1:
+ tmp_reg = 1 << 2;
+ break;
+ case 2:
+ tmp_reg = 3 << 2;
+ break;
+ case 3:
+ tmp_reg = 7 << 2;
+ break;
+ case 4:
+ default:
+ tmp_reg = 0xf << 2;
+ break;
+ }
+
+ tmp_reg |= (mode_flags & MIPI_DSI_CLOCK_NON_CONTINUOUS) << 6;
+ tmp_reg |= (mode_flags & MIPI_DSI_MODE_EOT_PACKET) >> 3;
+
+ dsi_write32(&dsi->dsi_txrx_ctrl, tmp_reg);
+}
+
+static void mtk_dsi_config_vdo_timing(u32 mode_flags, u32 format,
+ const struct edid *edid)
+{
+ u32 hsync_active_byte;
+ u32 hbp_byte;
+ u32 hfp_byte;
+ u32 vbp_byte;
+ u32 vfp_byte;
+ u32 bpp;
+ u32 packet_fmt;
+ u32 hactive;
+
+ if (format == MIPI_DSI_FMT_RGB565)
+ bpp = 2;
+ else
+ bpp = 3;
+
+ vbp_byte = edid->mode.vbl - edid->mode.vso - edid->mode.vspw -
+ edid->mode.vborder;
+ vfp_byte = edid->mode.vso - edid->mode.vborder;
+
+
+ dsi_write32(&dsi->dsi_vsa_nl, edid->mode.vspw);
+ dsi_write32(&dsi->dsi_vbp_nl, vbp_byte);
+ dsi_write32(&dsi->dsi_vfp_nl, vfp_byte);
+ dsi_write32(&dsi->dsi_vact_nl, edid->mode.va);
+
+ if (mode_flags & MIPI_DSI_MODE_VIDEO_SYNC_PULSE)
+ hbp_byte = (edid->mode.hbl - edid->mode.hso - edid->mode.hspw -
+ edid->mode.hborder) * bpp - 10;
+ else
+ hbp_byte = (edid->mode.hbl - edid->mode.hso -
+ edid->mode.hborder) * bpp - 10;
+
+ hsync_active_byte = edid->mode.hspw * bpp - 10;
+ hfp_byte = (edid->mode.hso - edid->mode.hborder) * bpp - 12;
+
+ dsi_write32(&dsi->dsi_hsa_wc, hsync_active_byte);
+ dsi_write32(&dsi->dsi_hbp_wc, hbp_byte);
+ dsi_write32(&dsi->dsi_hfp_wc, hfp_byte);
+
+ switch (format) {
+ case MIPI_DSI_FMT_RGB888:
+ packet_fmt = PACKED_PS_24BIT_RGB888;
+ break;
+ case MIPI_DSI_FMT_RGB666:
+ packet_fmt = LOOSELY_PS_18BIT_RGB666;
+ break;
+ case MIPI_DSI_FMT_RGB666_PACKED:
+ packet_fmt = PACKED_PS_18BIT_RGB666;
+ break;
+ case MIPI_DSI_FMT_RGB565:
+ packet_fmt = PACKED_PS_16BIT_RGB565;
+ break;
+ default:
+ packet_fmt = PACKED_PS_24BIT_RGB888;
+ break;
+ }
+
+ hactive = edid->mode.ha;
+ packet_fmt |= (hactive * bpp) & DSI_PS_WC;
+
+ dsi_write32(&dsi->dsi_psctrl, 0x2c << 24 | packet_fmt);
+ dsi_write32(&dsi->dsi_size_con, edid->mode.va << 16 | hactive);
+}
+
+static void mtk_dsi_start(void)
+{
+ dsi_write32(&dsi->dsi_start, 0);
+ dsi_write32(&dsi->dsi_start, 1);
+}
+
+static void mtk_dsi_cmdq(u8 *data, u8 len)
+{
+ struct stopwatch sw;
+ u8 *tx_buf = data;
+ u8 cmdq_size;
+ u32 reg_val, cmdq_mask, i, config, cmdq_off, type, intsta_0;
+
+ switch (len) {
+ case 0:
+ return;
+
+ case 1:
+ type = MIPI_DSI_DCS_SHORT_WRITE;
+ break;
+
+ case 2:
+ type = MIPI_DSI_DCS_SHORT_WRITE_PARAM;
+ break;
+
+ default:
+ type = MIPI_DSI_DCS_LONG_WRITE;
+ break;
+ }
+
+ if (MTK_DSI_HOST_IS_READ(type))
+ config = BTA;
+ else
+ config = (len > 2) ? LONG_PACKET : SHORT_PACKET;
+
+ if (len > 2) {
+ cmdq_size = 1 + (len + 3) / 4;
+ cmdq_off = 4;
+ cmdq_mask = CONFIG | DATA_ID | DATA_0 | DATA_1;
+ reg_val = (len << 16) | (type << 8) | config;
+ } else {
+ cmdq_size = 1;
+ cmdq_off = 2;
+ cmdq_mask = CONFIG | DATA_ID;
+ reg_val = (type << 8) | config;
+ }
+
+ for (i = 0; i < len; i++)
+ dsi_clrsetbits_le32(&dsi->dsi_cmdq0 + ((cmdq_off + i) & (~0x3)),
+ (0xff << (((i + cmdq_off) & 3) * 8)),
+ tx_buf[i] << (((i + cmdq_off) & 3) * 8));
+
+ dsi_clrsetbits_le32(&dsi->dsi_cmdq0, cmdq_mask, reg_val);
+ dsi_clrsetbits_le32(&dsi->dsi_cmdq_size, CMDQ_SIZE, cmdq_size);
+ dsi_write32(&dsi->dsi_intsta, 0);
+ mtk_dsi_start();
+
+ stopwatch_init_usecs_expire(&sw, 400);
+ do {
+ intsta_0 = read32(&dsi->dsi_intsta);
+ if (intsta_0 & CMD_DONE_INT_FLAG)
+ break;
+ udelay(4);
+ } while (!stopwatch_expired(&sw));
+
+ if (!(intsta_0 & CMD_DONE_INT_FLAG))
+ printk(BIOS_ERR, "dsi DONE INT Timeout\n");
+
+ dsi_write32(&dsi->dsi_start, 0);
+}
+
+static void push_table(struct lcm_init_table *init_cmd, u32 count)
+{
+ u32 cmd, i;
+
+ for (i = 0; i < count; i++) {
+ cmd = init_cmd[i].cmd;
+
+ switch (cmd) {
+ case DELAY_CMD:
+ mdelay(init_cmd[i].cmd);
+ break;
+
+ case END_OF_TABLE:
+ break;
+
+ case INIT_CMD:
+ default:
+ mtk_dsi_cmdq(init_cmd[i].data, init_cmd[i].len);
+ break;
+ }
+ }
+}
+
+int mtk_dsi_init(u32 mode_flags, u32 format, u32 lanes, bool dual,
+ const struct edid *edid, struct lcm_init_table *init_cmd, u32 count)
+{
+ int data_rate;
+ struct mtk_phy_timing phy_timing;
+
+ mtk_dsi_phy_timing_calc(format, lanes, edid, &phy_timing);
+
+ data_rate = mtk_dsi_phy_clk_setting(format, lanes, edid, &phy_timing);
+
+ if (data_rate < 0)
+ return -1;
+
+ mtk_dsi_reset();
+ dsi_write32(&dsi->dsi_force_commit, 3);
+ mtk_dsi_phy_timconfig(data_rate, &phy_timing);
+ mtk_dsi_rxtx_control(mode_flags, lanes);
+ mtk_dsi_clk_hs_mode_disable();
+ mtk_dsi_config_vdo_timing(mode_flags, format, edid);
+ mtk_dsi_clk_hs_mode_enable();
+ mtk_dsi_set_mode(0);
+ push_table(init_cmd, count);
+ mtk_dsi_set_mode(mode_flags);
+ mtk_dsi_start();
+
+ return 0;
+}
+
diff --git a/src/soc/mediatek/mt8183/include/soc/addressmap.h b/src/soc/mediatek/mt8183/include/soc/addressmap.h
index 88653eb..75202dd 100644
--- a/src/soc/mediatek/mt8183/include/soc/addressmap.h
+++ b/src/soc/mediatek/mt8183/include/soc/addressmap.h
@@ -47,6 +47,7 @@
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,
@@ -64,6 +65,7 @@
DISP_AAL0_BASE = IO_PHYS + 0x04010000,
DISP_GAMMA0_BASE = IO_PHYS + 0x04011000,
DISP_DITHER0_BASE = IO_PHYS + 0x04012000,
+ DSI_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 0000000..7b74478
--- /dev/null
+++ b/src/soc/mediatek/mt8183/include/soc/dsi.h
@@ -0,0 +1,484 @@
+/*
+ * 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 _DSI_REG_H_
+#define _DSI_REG_H_
+
+#include <edid.h>
+#include <types.h>
+
+enum mipi_dsi_pixel_format {
+ MIPI_DSI_FMT_RGB888,
+ MIPI_DSI_FMT_RGB666,
+ MIPI_DSI_FMT_RGB666_PACKED,
+ MIPI_DSI_FMT_RGB565
+};
+
+/* video mode */
+enum {
+ MIPI_DSI_MODE_VIDEO = BIT(0),
+ /* video burst mode */
+ MIPI_DSI_MODE_VIDEO_BURST = BIT(1),
+ /* video pulse mode */
+ MIPI_DSI_MODE_VIDEO_SYNC_PULSE = BIT(2),
+ /* enable auto vertical count mode */
+ MIPI_DSI_MODE_VIDEO_AUTO_VERT = BIT(3),
+ /* enable hsync-end packets in vsync-pulse and v-porch area */
+ MIPI_DSI_MODE_VIDEO_HSE = BIT(4),
+ /* disable hfront-porch area */
+ MIPI_DSI_MODE_VIDEO_HFP = BIT(5),
+ /* disable hback-porch area */
+ MIPI_DSI_MODE_VIDEO_HBP = BIT(6),
+ /* disable hsync-active area */
+ MIPI_DSI_MODE_VIDEO_HSA = BIT(7),
+ /* flush display FIFO on vsync pulse */
+ MIPI_DSI_MODE_VSYNC_FLUSH = BIT(8),
+ /* disable EoT packets in HS mode */
+ MIPI_DSI_MODE_EOT_PACKET = BIT(9),
+ /* device supports non-continuous clock behavior (DSI spec 5.6.1) */
+ MIPI_DSI_CLOCK_NON_CONTINUOUS = BIT(10),
+ /* transmit data in low power */
+ MIPI_DSI_MODE_LPM = BIT(11)
+};
+
+struct dsi_regs {
+ u32 dsi_start;
+ u8 reserved0[4];
+ u32 dsi_inten;
+ u32 dsi_intsta;
+ u32 dsi_con_ctrl;
+ u32 dsi_mode_ctrl;
+ u32 dsi_txrx_ctrl;
+ u32 dsi_psctrl;
+ u32 dsi_vsa_nl;
+ u32 dsi_vbp_nl;
+ u32 dsi_vfp_nl;
+ u32 dsi_vact_nl;
+ u32 dsi_lfr_con;
+ u32 dsi_lfr_sta;
+ u32 dsi_size_con;
+ u32 dsi_vfp_early_stop;
+ u32 reserved1[4];
+ u32 dsi_hsa_wc;
+ u32 dsi_hbp_wc;
+ u32 dsi_hfp_wc;
+ u32 dsi_bllp_wc;
+ u32 dsi_cmdq_size;
+ u32 dsi_hstx_cklp_wc;
+ u8 reserved2[156];
+ u32 dsi_phy_lccon;
+ u32 dsi_phy_ld0con;
+ u8 reserved3[4];
+ u32 dsi_phy_timecon0;
+ u32 dsi_phy_timecon1;
+ u32 dsi_phy_timecon2;
+ u32 dsi_phy_timecon3;
+ u8 reserved4[16];
+ u32 dsi_vm_cmd_con;
+ u8 reserved5[92];
+ u32 dsi_force_commit;
+ u8 reserved6[108];
+ u32 dsi_cmdq0;
+};
+
+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_cmdq0, 0x200);
+static struct dsi_regs *const dsi = (void *)DSI_BASE;
+
+#define DELAY_CMD 0
+#define END_OF_TABLE 1
+#define INIT_CMD 2
+
+struct lcm_init_table {
+ u32 cmd;
+ u32 len;
+ u8 data[64];
+};
+
+struct mtk_phy_timing {
+ u8 lpx;
+ u8 da_hs_prepare;
+ u8 da_hs_zero;
+ u8 da_hs_trail;
+
+ u8 ta_go;
+ u8 ta_sure;
+ u8 ta_get;
+ u8 da_hs_exit;
+
+ u8 clk_hs_zero;
+ u8 clk_hs_trail;
+
+ u8 clk_hs_prepare;
+ u8 clk_hs_post;
+ u8 clk_hs_exit;
+};
+
+/* DSI_INTSTA */
+enum {
+ LPRX_RD_RDY_INT_FLAG = BIT(0),
+ CMD_DONE_INT_FLAG = BIT(1),
+ TE_RDY_INT_FLAG = BIT(2),
+ VM_DONE_INT_FLAG = BIT(3),
+ EXT_TE_RDY_INT_FLAG = BIT(4),
+ DSI_BUSY = BIT(31),
+};
+
+/* DSI_CON_CTRL */
+enum {
+ DSI_RESET = BIT(0),
+ DSI_EN = BIT(1),
+ DSI_DUAL = BIT(4),
+};
+
+/* DSI_MODE_CTRL */
+enum {
+ MODE = 3,
+ CMD_MODE = 0,
+ SYNC_PULSE_MODE = 1,
+ SYNC_EVENT_MODE = 2,
+ BURST_MODE = 3,
+ FRM_MODE = BIT(16),
+ MIX_MODE = BIT(17)
+};
+
+/* DSI_PSCTRL */
+enum {
+ DSI_PS_WC = 0x3fff,
+ DSI_PS_SEL = (3 << 16),
+ PACKED_PS_16BIT_RGB565 = (0 << 16),
+ LOOSELY_PS_18BIT_RGB666 = (1 << 16),
+ PACKED_PS_18BIT_RGB666 = (2 << 16),
+ PACKED_PS_24BIT_RGB888 = (3 << 16)
+};
+
+/* DSI_CMDQ_SIZE */
+enum {
+ CMDQ_SIZE = 0x3f,
+};
+
+/* DSI_PHY_LCCON */
+enum {
+ LC_HS_TX_EN = BIT(0),
+ LC_ULPM_EN = BIT(1),
+ LC_WAKEUP_EN = BIT(2)
+};
+
+/*DSI_PHY_LD0CON */
+enum {
+ LD0_RM_TRIG_EN = BIT(0),
+ LD0_ULPM_EN = BIT(1),
+ LD0_WAKEUP_EN = BIT(2)
+};
+
+enum {
+ LPX = (0xff << 0),
+ HS_PRPR = (0xff << 8),
+ HS_ZERO = (0xff << 16),
+ HS_TRAIL = (0xff << 24)
+};
+
+enum {
+ TA_GO = (0xff << 0),
+ TA_SURE = (0xff << 8),
+ TA_GET = (0xff << 16),
+ DA_HS_EXIT = (0xff << 24)
+};
+
+enum {
+ CONT_DET = (0xff << 0),
+ CLK_ZERO = (0xf << 16),
+ CLK_TRAIL = (0xff << 24)
+};
+
+enum {
+ CLK_HS_PRPR = (0xff << 0),
+ CLK_HS_POST = (0xff << 8),
+ CLK_HS_EXIT = (0xf << 16)
+};
+
+/* DSI_VM_CMD_CON */
+enum {
+ VM_CMD_EN = BIT(0),
+ TS_VFP_EN = BIT(5),
+};
+
+/* DSI_CMDQ0 */
+enum {
+ CONFIG = (0xff << 0),
+ SHORT_PACKET = 0,
+ LONG_PACKET = 2,
+ BTA = BIT(2),
+ DATA_ID = (0xff << 8),
+ DATA_0 = (0xff << 16),
+ DATA_1 = (0xff << 24),
+};
+
+#define MIPITX_LANE_CON 0x000c
+#define MIPITX_PLL_PWR 0x0028
+#define MIPITX_PLL_CON0 0x002c
+#define MIPITX_PLL_CON1 0x0030
+#define MIPITX_PLL_CON2 0x0034
+#define MIPITX_PLL_CON3 0x0038
+#define MIPITX_PLL_CON4 0x003c
+#define MIPITX_D2_SW_CTL_EN 0x0144
+#define MIPITX_D0_SW_CTL_EN 0x0244
+#define MIPITX_CK_CKMODE_EN 0x0328
+#define DSI_CK_CKMODE_EN BIT(0)
+#define MIPITX_CK_SW_CTL_EN 0x0344
+#define MIPITX_D1_SW_CTL_EN 0x0444
+#define MIPITX_D3_SW_CTL_EN 0x0544
+#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)
+
+
+/* MIPITX_REG */
+struct mipi_tx_regs {
+ u32 dsi_con;
+ u32 dsi_clock_lane;
+ u32 dsi_data_lane[4];
+ u8 reserved0[40];
+ u32 dsi_top_con;
+ u32 dsi_bg_con;
+ u8 reserved1[8];
+ u32 dsi_pll_con0;
+ u32 dsi_pll_con1;
+ u32 dsi_pll_con2;
+ u32 dsi_pll_con3;
+ u32 dsi_pll_chg;
+ u32 dsi_pll_top;
+ u32 dsi_pll_pwr;
+ u8 reserved2[4];
+ u32 dsi_rgs;
+ u32 dsi_gpi_en;
+ u32 dsi_gpi_pull;
+ u32 dsi_phy_sel;
+ u32 dsi_sw_ctrl_en;
+ u32 dsi_sw_ctrl_con0;
+ u32 dsi_sw_ctrl_con1;
+ u32 dsi_sw_ctrl_con2;
+ u32 dsi_dbg_con;
+ u32 dsi_dbg_out;
+ u32 dsi_apb_async_sta;
+};
+
+check_member(mipi_tx_regs, dsi_top_con, 0x40);
+check_member(mipi_tx_regs, dsi_pll_pwr, 0x68);
+
+static struct mipi_tx_regs *const mipi_tx = (void *)MIPITX_BASE;
+
+/* MIPITX_DSI_CON */
+enum {
+ RG_DSI_LDOCORE_EN = BIT(0),
+ RG_DSI_CKG_LDOOUT_EN = BIT(1),
+ RG_DSI_BCLK_SEL = (3 << 2),
+ RG_DSI_LD_IDX_SEL = (7 << 4),
+ RG_DSI_PHYCLK_SEL = (2 << 8),
+ RG_DSI_DSICLK_FREQ_SEL = BIT(10),
+ RG_DSI_LPTX_CLMP_EN = BIT(11)
+};
+
+/* MIPITX_DSI_CLOCK_LANE */
+enum {
+ LDOOUT_EN = BIT(0),
+ CKLANE_EN = BIT(1),
+ IPLUS1 = BIT(2),
+ LPTX_IPLUS2 = BIT(3),
+ LPTX_IMINUS = BIT(4),
+ LPCD_IPLUS = BIT(5),
+ LPCD_IMLUS = BIT(6),
+ RT_CODE = (0xf << 8)
+};
+
+/* MIPITX_DSI_TOP_CON */
+enum {
+ RG_DSI_LNT_INTR_EN = BIT(0),
+ RG_DSI_LNT_HS_BIAS_EN = BIT(1),
+ RG_DSI_LNT_IMP_CAL_EN = BIT(2),
+ RG_DSI_LNT_TESTMODE_EN = BIT(3),
+ RG_DSI_LNT_IMP_CAL_CODE = (0xf << 4),
+ RG_DSI_LNT_AIO_SEL = (7 << 8),
+ RG_DSI_PAD_TIE_LOW_EN = BIT(11),
+ RG_DSI_DEBUG_INPUT_EN = BIT(12),
+ RG_DSI_PRESERVE = (7 << 13)
+};
+
+/* MIPITX_DSI_BG_CON */
+enum {
+ RG_DSI_BG_CORE_EN = BIT(0),
+ RG_DSI_BG_CKEN = BIT(1),
+ RG_DSI_BG_DIV = (0x3 << 2),
+ RG_DSI_BG_FAST_CHARGE = BIT(4),
+ RG_DSI_V12_SEL = (7 << 5),
+ RG_DSI_V10_SEL = (7 << 8),
+ RG_DSI_V072_SEL = (7 << 11),
+ RG_DSI_V04_SEL = (7 << 14),
+ RG_DSI_V032_SEL = (7 << 17),
+ RG_DSI_V02_SEL = (7 << 20),
+ rsv_23 = BIT(23),
+ RG_DSI_BG_R1_TRIM = (0xf << 24),
+ RG_DSI_BG_R2_TRIM = (0xf << 28)
+};
+
+/* MIPITX_DSI_PLL_CON0 */
+enum {
+ RG_DSI_MPPLL_PLL_EN = BIT(0),
+ RG_DSI_MPPLL_PREDIV = (3 << 1),
+ RG_DSI_MPPLL_TXDIV0 = (3 << 3),
+ RG_DSI_MPPLL_TXDIV1 = (3 << 5),
+ RG_DSI_MPPLL_POSDIV = (7 << 7),
+ RG_DSI_MPPLL_MONVC_EN = BIT(10),
+ RG_DSI_MPPLL_MONREF_EN = BIT(11),
+ RG_DSI_MPPLL_VOD_EN = BIT(12)
+};
+
+/* MIPITX_DSI_PLL_CON1 */
+enum {
+ RG_DSI_MPPLL_SDM_FRA_EN = BIT(0),
+ RG_DSI_MPPLL_SDM_SSC_PH_INIT = BIT(1),
+ RG_DSI_MPPLL_SDM_SSC_EN = BIT(2),
+ RG_DSI_MPPLL_SDM_SSC_PRD = (0xffff << 16)
+};
+
+/* MIPITX_DSI_PLL_PWR */
+enum {
+ RG_DSI_MPPLL_SDM_PWR_ON = BIT(0),
+ RG_DSI_MPPLL_SDM_ISO_EN = BIT(1),
+ RG_DSI_MPPLL_SDM_PWR_ACK = BIT(8)
+};
+
+/* MIPI DSI Processor-to-Peripheral transaction types */
+enum {
+ MIPI_DSI_V_SYNC_START = 0x01,
+ MIPI_DSI_V_SYNC_END = 0x11,
+ MIPI_DSI_H_SYNC_START = 0x21,
+ MIPI_DSI_H_SYNC_END = 0x31,
+
+ MIPI_DSI_COLOR_MODE_OFF = 0x02,
+ MIPI_DSI_COLOR_MODE_ON = 0x12,
+ MIPI_DSI_SHUTDOWN_PERIPHERAL = 0x22,
+ MIPI_DSI_TURN_ON_PERIPHERAL = 0x32,
+
+ MIPI_DSI_GENERIC_SHORT_WRITE_0_PARAM = 0x03,
+ MIPI_DSI_GENERIC_SHORT_WRITE_1_PARAM = 0x13,
+ MIPI_DSI_GENERIC_SHORT_WRITE_2_PARAM = 0x23,
+
+ MIPI_DSI_GENERIC_READ_REQUEST_0_PARAM = 0x04,
+ MIPI_DSI_GENERIC_READ_REQUEST_1_PARAM = 0x14,
+ MIPI_DSI_GENERIC_READ_REQUEST_2_PARAM = 0x24,
+
+ MIPI_DSI_DCS_SHORT_WRITE = 0x05,
+ MIPI_DSI_DCS_SHORT_WRITE_PARAM = 0x15,
+
+ MIPI_DSI_DCS_READ = 0x06,
+
+ MIPI_DSI_SET_MAXIMUM_RETURN_PACKET_SIZE = 0x37,
+
+ MIPI_DSI_END_OF_TRANSMISSION = 0x08,
+
+ MIPI_DSI_NULL_PACKET = 0x09,
+ MIPI_DSI_BLANKING_PACKET = 0x19,
+ MIPI_DSI_GENERIC_LONG_WRITE = 0x29,
+ MIPI_DSI_DCS_LONG_WRITE = 0x39,
+
+ MIPI_DSI_LOOSELY_PACKED_PIXEL_STREAM_YCBCR20 = 0x0c,
+ MIPI_DSI_PACKED_PIXEL_STREAM_YCBCR24 = 0x1c,
+ MIPI_DSI_PACKED_PIXEL_STREAM_YCBCR16 = 0x2c,
+
+ MIPI_DSI_PACKED_PIXEL_STREAM_30 = 0x0d,
+ MIPI_DSI_PACKED_PIXEL_STREAM_36 = 0x1d,
+ MIPI_DSI_PACKED_PIXEL_STREAM_YCBCR12 = 0x3d,
+
+ MIPI_DSI_PACKED_PIXEL_STREAM_16 = 0x0e,
+ MIPI_DSI_PACKED_PIXEL_STREAM_18 = 0x1e,
+ MIPI_DSI_PIXEL_STREAM_3BYTE_18 = 0x2e,
+ MIPI_DSI_PACKED_PIXEL_STREAM_24 = 0x3e,
+};
+
+/* MIPI DSI Peripheral-to-Processor transaction types */
+enum {
+ MIPI_DSI_RX_ACKNOWLEDGE_AND_ERROR_REPORT = 0x02,
+ MIPI_DSI_RX_END_OF_TRANSMISSION = 0x08,
+ MIPI_DSI_RX_GENERIC_SHORT_READ_RESPONSE_1BYTE = 0x11,
+ MIPI_DSI_RX_GENERIC_SHORT_READ_RESPONSE_2BYTE = 0x12,
+ MIPI_DSI_RX_GENERIC_LONG_READ_RESPONSE = 0x1a,
+ MIPI_DSI_RX_DCS_LONG_READ_RESPONSE = 0x1c,
+ MIPI_DSI_RX_DCS_SHORT_READ_RESPONSE_1BYTE = 0x21,
+ MIPI_DSI_RX_DCS_SHORT_READ_RESPONSE_2BYTE = 0x22,
+};
+
+/* MIPI DCS commands */
+enum {
+ MIPI_DCS_NOP = 0x00,
+ MIPI_DCS_SOFT_RESET = 0x01,
+ MIPI_DCS_GET_DISPLAY_ID = 0x04,
+ MIPI_DCS_GET_RED_CHANNEL = 0x06,
+ MIPI_DCS_GET_GREEN_CHANNEL = 0x07,
+ MIPI_DCS_GET_BLUE_CHANNEL = 0x08,
+ MIPI_DCS_GET_DISPLAY_STATUS = 0x09,
+ MIPI_DCS_GET_POWER_MODE = 0x0A,
+ MIPI_DCS_GET_ADDRESS_MODE = 0x0B,
+ MIPI_DCS_GET_PIXEL_FORMAT = 0x0C,
+ MIPI_DCS_GET_DISPLAY_MODE = 0x0D,
+ MIPI_DCS_GET_SIGNAL_MODE = 0x0E,
+ MIPI_DCS_GET_DIAGNOSTIC_RESULT = 0x0F,
+ MIPI_DCS_ENTER_SLEEP_MODE = 0x10,
+ MIPI_DCS_EXIT_SLEEP_MODE = 0x11,
+ MIPI_DCS_ENTER_PARTIAL_MODE = 0x12,
+ MIPI_DCS_ENTER_NORMAL_MODE = 0x13,
+ MIPI_DCS_EXIT_INVERT_MODE = 0x20,
+ MIPI_DCS_ENTER_INVERT_MODE = 0x21,
+ MIPI_DCS_SET_GAMMA_CURVE = 0x26,
+ MIPI_DCS_SET_DISPLAY_OFF = 0x28,
+ MIPI_DCS_SET_DISPLAY_ON = 0x29,
+ MIPI_DCS_SET_COLUMN_ADDRESS = 0x2A,
+ MIPI_DCS_SET_PAGE_ADDRESS = 0x2B,
+ MIPI_DCS_WRITE_MEMORY_START = 0x2C,
+ MIPI_DCS_WRITE_LUT = 0x2D,
+ MIPI_DCS_READ_MEMORY_START = 0x2E,
+ MIPI_DCS_SET_PARTIAL_AREA = 0x30,
+ MIPI_DCS_SET_SCROLL_AREA = 0x33,
+ MIPI_DCS_SET_TEAR_OFF = 0x34,
+ MIPI_DCS_SET_TEAR_ON = 0x35,
+ MIPI_DCS_SET_ADDRESS_MODE = 0x36,
+ MIPI_DCS_SET_SCROLL_START = 0x37,
+ MIPI_DCS_EXIT_IDLE_MODE = 0x38,
+ MIPI_DCS_ENTER_IDLE_MODE = 0x39,
+ MIPI_DCS_SET_PIXEL_FORMAT = 0x3A,
+ MIPI_DCS_WRITE_MEMORY_CONTINUE = 0x3C,
+ MIPI_DCS_READ_MEMORY_CONTINUE = 0x3E,
+ MIPI_DCS_SET_TEAR_SCANLINE = 0x44,
+ MIPI_DCS_GET_SCANLINE = 0x45,
+ MIPI_DCS_READ_DDB_START = 0xA1,
+ MIPI_DCS_READ_DDB_CONTINUE = 0xA8,
+};
+
+#define MTK_DSI_HOST_IS_READ(type) \
+ ((type == MIPI_DSI_GENERIC_READ_REQUEST_0_PARAM) || \
+ (type == MIPI_DSI_GENERIC_READ_REQUEST_1_PARAM) || \
+ (type == MIPI_DSI_GENERIC_READ_REQUEST_2_PARAM) || \
+ (type == MIPI_DSI_DCS_READ))
+
+extern int mtk_dsi_init(u32 mode_flags, u32 format, u32 lanes, bool dual,
+ const struct edid *edid, struct lcm_init_table *init_cmd, u32 count);
+
+#endif
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