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Diffstat (limited to 'roms/u-boot/drivers/video/sunxi/sunxi_display.c')
-rw-r--r--roms/u-boot/drivers/video/sunxi/sunxi_display.c1336
1 files changed, 1336 insertions, 0 deletions
diff --git a/roms/u-boot/drivers/video/sunxi/sunxi_display.c b/roms/u-boot/drivers/video/sunxi/sunxi_display.c
new file mode 100644
index 000000000..4361a58cd
--- /dev/null
+++ b/roms/u-boot/drivers/video/sunxi/sunxi_display.c
@@ -0,0 +1,1336 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Display driver for Allwinner SoCs.
+ *
+ * (C) Copyright 2013-2014 Luc Verhaegen <libv@skynet.be>
+ * (C) Copyright 2014-2015 Hans de Goede <hdegoede@redhat.com>
+ */
+
+#include <common.h>
+#include <display.h>
+#include <dm.h>
+#include <cpu_func.h>
+#include <efi_loader.h>
+#include <init.h>
+#include <time.h>
+#include <linux/delay.h>
+
+#include <asm/arch/clock.h>
+#include <asm/arch/display.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/lcdc.h>
+#include <asm/arch/pwm.h>
+#include <asm/arch/tve.h>
+#include <asm/global_data.h>
+#include <asm/gpio.h>
+#include <asm/io.h>
+#include <axp_pmic.h>
+#include <errno.h>
+#include <fdtdec.h>
+#include <fdt_support.h>
+#include <i2c.h>
+#include <malloc.h>
+#include <video.h>
+#include <video_fb.h>
+#include <dm/uclass-internal.h>
+#include "../videomodes.h"
+#include "../anx9804.h"
+#include "../hitachi_tx18d42vm_lcd.h"
+#include "../ssd2828.h"
+#include "simplefb_common.h"
+
+#ifdef CONFIG_VIDEO_LCD_BL_PWM_ACTIVE_LOW
+#define PWM_ON 0
+#define PWM_OFF 1
+#else
+#define PWM_ON 1
+#define PWM_OFF 0
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* Maximum LCD size we support */
+#define LCD_MAX_WIDTH 3840
+#define LCD_MAX_HEIGHT 2160
+#define LCD_MAX_LOG2_BPP VIDEO_BPP32
+
+enum sunxi_monitor {
+ sunxi_monitor_none,
+ sunxi_monitor_dvi,
+ sunxi_monitor_hdmi,
+ sunxi_monitor_lcd,
+ sunxi_monitor_vga,
+ sunxi_monitor_composite_pal,
+ sunxi_monitor_composite_ntsc,
+ sunxi_monitor_composite_pal_m,
+ sunxi_monitor_composite_pal_nc,
+};
+#define SUNXI_MONITOR_LAST sunxi_monitor_composite_pal_nc
+
+struct sunxi_display_priv {
+ enum sunxi_monitor monitor;
+ unsigned int depth;
+ unsigned int fb_addr;
+ unsigned int fb_size;
+};
+
+const struct ctfb_res_modes composite_video_modes[2] = {
+ /* x y hz pixclk ps/kHz le ri up lo hs vs s vmode */
+ { 720, 576, 50, 37037, 27000, 137, 5, 20, 27, 2, 2, 0, FB_VMODE_INTERLACED },
+ { 720, 480, 60, 37037, 27000, 116, 20, 16, 27, 2, 2, 0, FB_VMODE_INTERLACED },
+};
+
+#ifdef CONFIG_VIDEO_HDMI
+
+/*
+ * Wait up to 200ms for value to be set in given part of reg.
+ */
+static int await_completion(u32 *reg, u32 mask, u32 val)
+{
+ unsigned long tmo = timer_get_us() + 200000;
+
+ while ((readl(reg) & mask) != val) {
+ if (timer_get_us() > tmo) {
+ printf("DDC: timeout reading EDID\n");
+ return -ETIME;
+ }
+ }
+ return 0;
+}
+
+static int sunxi_hdmi_hpd_detect(int hpd_delay)
+{
+ struct sunxi_ccm_reg * const ccm =
+ (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
+ struct sunxi_hdmi_reg * const hdmi =
+ (struct sunxi_hdmi_reg *)SUNXI_HDMI_BASE;
+ unsigned long tmo = timer_get_us() + hpd_delay * 1000;
+
+ /* Set pll3 to 300MHz */
+ clock_set_pll3(300000000);
+
+ /* Set hdmi parent to pll3 */
+ clrsetbits_le32(&ccm->hdmi_clk_cfg, CCM_HDMI_CTRL_PLL_MASK,
+ CCM_HDMI_CTRL_PLL3);
+
+ /* Set ahb gating to pass */
+#ifdef CONFIG_SUNXI_GEN_SUN6I
+ setbits_le32(&ccm->ahb_reset1_cfg, 1 << AHB_RESET_OFFSET_HDMI);
+#endif
+ setbits_le32(&ccm->ahb_gate1, 1 << AHB_GATE_OFFSET_HDMI);
+
+ /* Clock on */
+ setbits_le32(&ccm->hdmi_clk_cfg, CCM_HDMI_CTRL_GATE);
+
+ writel(SUNXI_HDMI_CTRL_ENABLE, &hdmi->ctrl);
+ writel(SUNXI_HDMI_PAD_CTRL0_HDP, &hdmi->pad_ctrl0);
+
+ /* Enable PLLs for eventual DDC */
+ writel(SUNXI_HDMI_PAD_CTRL1 | SUNXI_HDMI_PAD_CTRL1_HALVE,
+ &hdmi->pad_ctrl1);
+ writel(SUNXI_HDMI_PLL_CTRL | SUNXI_HDMI_PLL_CTRL_DIV(15),
+ &hdmi->pll_ctrl);
+ writel(SUNXI_HDMI_PLL_DBG0_PLL3, &hdmi->pll_dbg0);
+
+ while (timer_get_us() < tmo) {
+ if (readl(&hdmi->hpd) & SUNXI_HDMI_HPD_DETECT)
+ return 1;
+ }
+
+ return 0;
+}
+
+static void sunxi_hdmi_shutdown(void)
+{
+ struct sunxi_ccm_reg * const ccm =
+ (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
+ struct sunxi_hdmi_reg * const hdmi =
+ (struct sunxi_hdmi_reg *)SUNXI_HDMI_BASE;
+
+ clrbits_le32(&hdmi->ctrl, SUNXI_HDMI_CTRL_ENABLE);
+ clrbits_le32(&ccm->hdmi_clk_cfg, CCM_HDMI_CTRL_GATE);
+ clrbits_le32(&ccm->ahb_gate1, 1 << AHB_GATE_OFFSET_HDMI);
+#ifdef CONFIG_SUNXI_GEN_SUN6I
+ clrbits_le32(&ccm->ahb_reset1_cfg, 1 << AHB_RESET_OFFSET_HDMI);
+#endif
+ clock_set_pll3(0);
+}
+
+static int sunxi_hdmi_ddc_do_command(u32 cmnd, int offset, int n)
+{
+ struct sunxi_hdmi_reg * const hdmi =
+ (struct sunxi_hdmi_reg *)SUNXI_HDMI_BASE;
+
+ setbits_le32(&hdmi->ddc_fifo_ctrl, SUNXI_HDMI_DDC_FIFO_CTRL_CLEAR);
+ writel(SUNXI_HMDI_DDC_ADDR_EDDC_SEGMENT(offset >> 8) |
+ SUNXI_HMDI_DDC_ADDR_EDDC_ADDR |
+ SUNXI_HMDI_DDC_ADDR_OFFSET(offset) |
+ SUNXI_HMDI_DDC_ADDR_SLAVE_ADDR, &hdmi->ddc_addr);
+#ifndef CONFIG_MACH_SUN6I
+ writel(n, &hdmi->ddc_byte_count);
+ writel(cmnd, &hdmi->ddc_cmnd);
+#else
+ writel(n << 16 | cmnd, &hdmi->ddc_cmnd);
+#endif
+ setbits_le32(&hdmi->ddc_ctrl, SUNXI_HMDI_DDC_CTRL_START);
+
+ return await_completion(&hdmi->ddc_ctrl, SUNXI_HMDI_DDC_CTRL_START, 0);
+}
+
+static int sunxi_hdmi_ddc_read(int offset, u8 *buf, int count)
+{
+ struct sunxi_hdmi_reg * const hdmi =
+ (struct sunxi_hdmi_reg *)SUNXI_HDMI_BASE;
+ int i, n;
+
+ while (count > 0) {
+ if (count > 16)
+ n = 16;
+ else
+ n = count;
+
+ if (sunxi_hdmi_ddc_do_command(
+ SUNXI_HDMI_DDC_CMND_EXPLICIT_EDDC_READ,
+ offset, n))
+ return -ETIME;
+
+ for (i = 0; i < n; i++)
+ *buf++ = readb(&hdmi->ddc_fifo_data);
+
+ offset += n;
+ count -= n;
+ }
+
+ return 0;
+}
+
+static int sunxi_hdmi_edid_get_block(int block, u8 *buf)
+{
+ int r, retries = 2;
+
+ do {
+ r = sunxi_hdmi_ddc_read(block * 128, buf, 128);
+ if (r)
+ continue;
+ r = edid_check_checksum(buf);
+ if (r) {
+ printf("EDID block %d: checksum error%s\n",
+ block, retries ? ", retrying" : "");
+ }
+ } while (r && retries--);
+
+ return r;
+}
+
+static int sunxi_hdmi_edid_get_mode(struct sunxi_display_priv *sunxi_display,
+ struct ctfb_res_modes *mode,
+ bool verbose_mode)
+{
+ struct edid1_info edid1;
+ struct edid_cea861_info cea681[4];
+ struct edid_detailed_timing *t =
+ (struct edid_detailed_timing *)edid1.monitor_details.timing;
+ struct sunxi_hdmi_reg * const hdmi =
+ (struct sunxi_hdmi_reg *)SUNXI_HDMI_BASE;
+ struct sunxi_ccm_reg * const ccm =
+ (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
+ int i, r, ext_blocks = 0;
+
+ /* Reset i2c controller */
+ setbits_le32(&ccm->hdmi_clk_cfg, CCM_HDMI_CTRL_DDC_GATE);
+ writel(SUNXI_HMDI_DDC_CTRL_ENABLE |
+ SUNXI_HMDI_DDC_CTRL_SDA_ENABLE |
+ SUNXI_HMDI_DDC_CTRL_SCL_ENABLE |
+ SUNXI_HMDI_DDC_CTRL_RESET, &hdmi->ddc_ctrl);
+ if (await_completion(&hdmi->ddc_ctrl, SUNXI_HMDI_DDC_CTRL_RESET, 0))
+ return -EIO;
+
+ writel(SUNXI_HDMI_DDC_CLOCK, &hdmi->ddc_clock);
+#ifndef CONFIG_MACH_SUN6I
+ writel(SUNXI_HMDI_DDC_LINE_CTRL_SDA_ENABLE |
+ SUNXI_HMDI_DDC_LINE_CTRL_SCL_ENABLE, &hdmi->ddc_line_ctrl);
+#endif
+
+ r = sunxi_hdmi_edid_get_block(0, (u8 *)&edid1);
+ if (r == 0) {
+ r = edid_check_info(&edid1);
+ if (r) {
+ if (verbose_mode)
+ printf("EDID: invalid EDID data\n");
+ r = -EINVAL;
+ }
+ }
+ if (r == 0) {
+ ext_blocks = edid1.extension_flag;
+ if (ext_blocks > 4)
+ ext_blocks = 4;
+ for (i = 0; i < ext_blocks; i++) {
+ if (sunxi_hdmi_edid_get_block(1 + i,
+ (u8 *)&cea681[i]) != 0) {
+ ext_blocks = i;
+ break;
+ }
+ }
+ }
+
+ /* Disable DDC engine, no longer needed */
+ clrbits_le32(&hdmi->ddc_ctrl, SUNXI_HMDI_DDC_CTRL_ENABLE);
+ clrbits_le32(&ccm->hdmi_clk_cfg, CCM_HDMI_CTRL_DDC_GATE);
+
+ if (r)
+ return r;
+
+ /* We want version 1.3 or 1.2 with detailed timing info */
+ if (edid1.version != 1 || (edid1.revision < 3 &&
+ !EDID1_INFO_FEATURE_PREFERRED_TIMING_MODE(edid1))) {
+ printf("EDID: unsupported version %d.%d\n",
+ edid1.version, edid1.revision);
+ return -EINVAL;
+ }
+
+ /* Take the first usable detailed timing */
+ for (i = 0; i < 4; i++, t++) {
+ r = video_edid_dtd_to_ctfb_res_modes(t, mode);
+ if (r == 0)
+ break;
+ }
+ if (i == 4) {
+ printf("EDID: no usable detailed timing found\n");
+ return -ENOENT;
+ }
+
+ /* Check for basic audio support, if found enable hdmi output */
+ sunxi_display->monitor = sunxi_monitor_dvi;
+ for (i = 0; i < ext_blocks; i++) {
+ if (cea681[i].extension_tag != EDID_CEA861_EXTENSION_TAG ||
+ cea681[i].revision < 2)
+ continue;
+
+ if (EDID_CEA861_SUPPORTS_BASIC_AUDIO(cea681[i]))
+ sunxi_display->monitor = sunxi_monitor_hdmi;
+ }
+
+ return 0;
+}
+
+#endif /* CONFIG_VIDEO_HDMI */
+
+#ifdef CONFIG_MACH_SUN4I
+/*
+ * Testing has shown that on sun4i the display backend engine does not have
+ * deep enough fifo-s causing flickering / tearing in full-hd mode due to
+ * fifo underruns. So on sun4i we use the display frontend engine to do the
+ * dma from memory, as the frontend does have deep enough fifo-s.
+ */
+
+static const u32 sun4i_vert_coef[32] = {
+ 0x00004000, 0x000140ff, 0x00033ffe, 0x00043ffd,
+ 0x00063efc, 0xff083dfc, 0x000a3bfb, 0xff0d39fb,
+ 0xff0f37fb, 0xff1136fa, 0xfe1433fb, 0xfe1631fb,
+ 0xfd192ffb, 0xfd1c2cfb, 0xfd1f29fb, 0xfc2127fc,
+ 0xfc2424fc, 0xfc2721fc, 0xfb291ffd, 0xfb2c1cfd,
+ 0xfb2f19fd, 0xfb3116fe, 0xfb3314fe, 0xfa3611ff,
+ 0xfb370fff, 0xfb390dff, 0xfb3b0a00, 0xfc3d08ff,
+ 0xfc3e0600, 0xfd3f0400, 0xfe3f0300, 0xff400100,
+};
+
+static const u32 sun4i_horz_coef[64] = {
+ 0x40000000, 0x00000000, 0x40fe0000, 0x0000ff03,
+ 0x3ffd0000, 0x0000ff05, 0x3ffc0000, 0x0000ff06,
+ 0x3efb0000, 0x0000ff08, 0x3dfb0000, 0x0000ff09,
+ 0x3bfa0000, 0x0000fe0d, 0x39fa0000, 0x0000fe0f,
+ 0x38fa0000, 0x0000fe10, 0x36fa0000, 0x0000fe12,
+ 0x33fa0000, 0x0000fd16, 0x31fa0000, 0x0000fd18,
+ 0x2ffa0000, 0x0000fd1a, 0x2cfa0000, 0x0000fc1e,
+ 0x29fa0000, 0x0000fc21, 0x27fb0000, 0x0000fb23,
+ 0x24fb0000, 0x0000fb26, 0x21fb0000, 0x0000fb29,
+ 0x1ffc0000, 0x0000fa2b, 0x1cfc0000, 0x0000fa2e,
+ 0x19fd0000, 0x0000fa30, 0x16fd0000, 0x0000fa33,
+ 0x14fd0000, 0x0000fa35, 0x11fe0000, 0x0000fa37,
+ 0x0ffe0000, 0x0000fa39, 0x0dfe0000, 0x0000fa3b,
+ 0x0afe0000, 0x0000fa3e, 0x08ff0000, 0x0000fb3e,
+ 0x06ff0000, 0x0000fb40, 0x05ff0000, 0x0000fc40,
+ 0x03ff0000, 0x0000fd41, 0x01ff0000, 0x0000fe42,
+};
+
+static void sunxi_frontend_init(void)
+{
+ struct sunxi_ccm_reg * const ccm =
+ (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
+ struct sunxi_de_fe_reg * const de_fe =
+ (struct sunxi_de_fe_reg *)SUNXI_DE_FE0_BASE;
+ int i;
+
+ /* Clocks on */
+ setbits_le32(&ccm->ahb_gate1, 1 << AHB_GATE_OFFSET_DE_FE0);
+ setbits_le32(&ccm->dram_clk_gate, 1 << CCM_DRAM_GATE_OFFSET_DE_FE0);
+ clock_set_de_mod_clock(&ccm->fe0_clk_cfg, 300000000);
+
+ setbits_le32(&de_fe->enable, SUNXI_DE_FE_ENABLE_EN);
+
+ for (i = 0; i < 32; i++) {
+ writel(sun4i_horz_coef[2 * i], &de_fe->ch0_horzcoef0[i]);
+ writel(sun4i_horz_coef[2 * i + 1], &de_fe->ch0_horzcoef1[i]);
+ writel(sun4i_vert_coef[i], &de_fe->ch0_vertcoef[i]);
+ writel(sun4i_horz_coef[2 * i], &de_fe->ch1_horzcoef0[i]);
+ writel(sun4i_horz_coef[2 * i + 1], &de_fe->ch1_horzcoef1[i]);
+ writel(sun4i_vert_coef[i], &de_fe->ch1_vertcoef[i]);
+ }
+
+ setbits_le32(&de_fe->frame_ctrl, SUNXI_DE_FE_FRAME_CTRL_COEF_RDY);
+}
+
+static void sunxi_frontend_mode_set(const struct ctfb_res_modes *mode,
+ unsigned int address)
+{
+ struct sunxi_de_fe_reg * const de_fe =
+ (struct sunxi_de_fe_reg *)SUNXI_DE_FE0_BASE;
+
+ setbits_le32(&de_fe->bypass, SUNXI_DE_FE_BYPASS_CSC_BYPASS);
+ writel(CONFIG_SYS_SDRAM_BASE + address, &de_fe->ch0_addr);
+ writel(mode->xres * 4, &de_fe->ch0_stride);
+ writel(SUNXI_DE_FE_INPUT_FMT_ARGB8888, &de_fe->input_fmt);
+ writel(SUNXI_DE_FE_OUTPUT_FMT_ARGB8888, &de_fe->output_fmt);
+
+ writel(SUNXI_DE_FE_HEIGHT(mode->yres) | SUNXI_DE_FE_WIDTH(mode->xres),
+ &de_fe->ch0_insize);
+ writel(SUNXI_DE_FE_HEIGHT(mode->yres) | SUNXI_DE_FE_WIDTH(mode->xres),
+ &de_fe->ch0_outsize);
+ writel(SUNXI_DE_FE_FACTOR_INT(1), &de_fe->ch0_horzfact);
+ writel(SUNXI_DE_FE_FACTOR_INT(1), &de_fe->ch0_vertfact);
+
+ writel(SUNXI_DE_FE_HEIGHT(mode->yres) | SUNXI_DE_FE_WIDTH(mode->xres),
+ &de_fe->ch1_insize);
+ writel(SUNXI_DE_FE_HEIGHT(mode->yres) | SUNXI_DE_FE_WIDTH(mode->xres),
+ &de_fe->ch1_outsize);
+ writel(SUNXI_DE_FE_FACTOR_INT(1), &de_fe->ch1_horzfact);
+ writel(SUNXI_DE_FE_FACTOR_INT(1), &de_fe->ch1_vertfact);
+
+ setbits_le32(&de_fe->frame_ctrl, SUNXI_DE_FE_FRAME_CTRL_REG_RDY);
+}
+
+static void sunxi_frontend_enable(void)
+{
+ struct sunxi_de_fe_reg * const de_fe =
+ (struct sunxi_de_fe_reg *)SUNXI_DE_FE0_BASE;
+
+ setbits_le32(&de_fe->frame_ctrl, SUNXI_DE_FE_FRAME_CTRL_FRM_START);
+}
+#else
+static void sunxi_frontend_init(void) {}
+static void sunxi_frontend_mode_set(const struct ctfb_res_modes *mode,
+ unsigned int address) {}
+static void sunxi_frontend_enable(void) {}
+#endif
+
+static bool sunxi_is_composite(enum sunxi_monitor monitor)
+{
+ switch (monitor) {
+ case sunxi_monitor_none:
+ case sunxi_monitor_dvi:
+ case sunxi_monitor_hdmi:
+ case sunxi_monitor_lcd:
+ case sunxi_monitor_vga:
+ return false;
+ case sunxi_monitor_composite_pal:
+ case sunxi_monitor_composite_ntsc:
+ case sunxi_monitor_composite_pal_m:
+ case sunxi_monitor_composite_pal_nc:
+ return true;
+ }
+
+ return false; /* Never reached */
+}
+
+/*
+ * This is the entity that mixes and matches the different layers and inputs.
+ * Allwinner calls it the back-end, but i like composer better.
+ */
+static void sunxi_composer_init(void)
+{
+ struct sunxi_ccm_reg * const ccm =
+ (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
+ struct sunxi_de_be_reg * const de_be =
+ (struct sunxi_de_be_reg *)SUNXI_DE_BE0_BASE;
+ int i;
+
+ sunxi_frontend_init();
+
+#ifdef CONFIG_SUNXI_GEN_SUN6I
+ /* Reset off */
+ setbits_le32(&ccm->ahb_reset1_cfg, 1 << AHB_RESET_OFFSET_DE_BE0);
+#endif
+
+ /* Clocks on */
+ setbits_le32(&ccm->ahb_gate1, 1 << AHB_GATE_OFFSET_DE_BE0);
+#ifndef CONFIG_MACH_SUN4I /* On sun4i the frontend does the dma */
+ setbits_le32(&ccm->dram_clk_gate, 1 << CCM_DRAM_GATE_OFFSET_DE_BE0);
+#endif
+ clock_set_de_mod_clock(&ccm->be0_clk_cfg, 300000000);
+
+ /* Engine bug, clear registers after reset */
+ for (i = 0x0800; i < 0x1000; i += 4)
+ writel(0, SUNXI_DE_BE0_BASE + i);
+
+ setbits_le32(&de_be->mode, SUNXI_DE_BE_MODE_ENABLE);
+}
+
+static const u32 sunxi_rgb2yuv_coef[12] = {
+ 0x00000107, 0x00000204, 0x00000064, 0x00000108,
+ 0x00003f69, 0x00003ed6, 0x000001c1, 0x00000808,
+ 0x000001c1, 0x00003e88, 0x00003fb8, 0x00000808
+};
+
+static void sunxi_composer_mode_set(const struct ctfb_res_modes *mode,
+ unsigned int address,
+ enum sunxi_monitor monitor)
+{
+ struct sunxi_de_be_reg * const de_be =
+ (struct sunxi_de_be_reg *)SUNXI_DE_BE0_BASE;
+ int i;
+
+ sunxi_frontend_mode_set(mode, address);
+
+ writel(SUNXI_DE_BE_HEIGHT(mode->yres) | SUNXI_DE_BE_WIDTH(mode->xres),
+ &de_be->disp_size);
+ writel(SUNXI_DE_BE_HEIGHT(mode->yres) | SUNXI_DE_BE_WIDTH(mode->xres),
+ &de_be->layer0_size);
+#ifndef CONFIG_MACH_SUN4I /* On sun4i the frontend does the dma */
+ writel(SUNXI_DE_BE_LAYER_STRIDE(mode->xres), &de_be->layer0_stride);
+ writel(address << 3, &de_be->layer0_addr_low32b);
+ writel(address >> 29, &de_be->layer0_addr_high4b);
+#else
+ writel(SUNXI_DE_BE_LAYER_ATTR0_SRC_FE0, &de_be->layer0_attr0_ctrl);
+#endif
+ writel(SUNXI_DE_BE_LAYER_ATTR1_FMT_XRGB8888, &de_be->layer0_attr1_ctrl);
+
+ setbits_le32(&de_be->mode, SUNXI_DE_BE_MODE_LAYER0_ENABLE);
+ if (mode->vmode == FB_VMODE_INTERLACED)
+ setbits_le32(&de_be->mode,
+#ifndef CONFIG_MACH_SUN5I
+ SUNXI_DE_BE_MODE_DEFLICKER_ENABLE |
+#endif
+ SUNXI_DE_BE_MODE_INTERLACE_ENABLE);
+
+ if (sunxi_is_composite(monitor)) {
+ writel(SUNXI_DE_BE_OUTPUT_COLOR_CTRL_ENABLE,
+ &de_be->output_color_ctrl);
+ for (i = 0; i < 12; i++)
+ writel(sunxi_rgb2yuv_coef[i],
+ &de_be->output_color_coef[i]);
+ }
+}
+
+static void sunxi_composer_enable(void)
+{
+ struct sunxi_de_be_reg * const de_be =
+ (struct sunxi_de_be_reg *)SUNXI_DE_BE0_BASE;
+
+ sunxi_frontend_enable();
+
+ setbits_le32(&de_be->reg_ctrl, SUNXI_DE_BE_REG_CTRL_LOAD_REGS);
+ setbits_le32(&de_be->mode, SUNXI_DE_BE_MODE_START);
+}
+
+static void sunxi_lcdc_init(void)
+{
+ struct sunxi_ccm_reg * const ccm =
+ (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
+ struct sunxi_lcdc_reg * const lcdc =
+ (struct sunxi_lcdc_reg *)SUNXI_LCD0_BASE;
+
+ /* Reset off */
+#ifdef CONFIG_SUNXI_GEN_SUN6I
+ setbits_le32(&ccm->ahb_reset1_cfg, 1 << AHB_RESET_OFFSET_LCD0);
+#else
+ setbits_le32(&ccm->lcd0_ch0_clk_cfg, CCM_LCD_CH0_CTRL_RST);
+#endif
+
+ /* Clock on */
+ setbits_le32(&ccm->ahb_gate1, 1 << AHB_GATE_OFFSET_LCD0);
+#ifdef CONFIG_VIDEO_LCD_IF_LVDS
+#ifdef CONFIG_SUNXI_GEN_SUN6I
+ setbits_le32(&ccm->ahb_reset2_cfg, 1 << AHB_RESET_OFFSET_LVDS);
+#else
+ setbits_le32(&ccm->lvds_clk_cfg, CCM_LVDS_CTRL_RST);
+#endif
+#endif
+
+ lcdc_init(lcdc);
+}
+
+static void sunxi_lcdc_panel_enable(void)
+{
+ int pin, reset_pin;
+
+ /*
+ * Start with backlight disabled to avoid the screen flashing to
+ * white while the lcd inits.
+ */
+ pin = sunxi_name_to_gpio(CONFIG_VIDEO_LCD_BL_EN);
+ if (pin >= 0) {
+ gpio_request(pin, "lcd_backlight_enable");
+ gpio_direction_output(pin, 0);
+ }
+
+ pin = sunxi_name_to_gpio(CONFIG_VIDEO_LCD_BL_PWM);
+ if (pin >= 0) {
+ gpio_request(pin, "lcd_backlight_pwm");
+ gpio_direction_output(pin, PWM_OFF);
+ }
+
+ reset_pin = sunxi_name_to_gpio(CONFIG_VIDEO_LCD_RESET);
+ if (reset_pin >= 0) {
+ gpio_request(reset_pin, "lcd_reset");
+ gpio_direction_output(reset_pin, 0); /* Assert reset */
+ }
+
+ /* Give the backlight some time to turn off and power up the panel. */
+ mdelay(40);
+ pin = sunxi_name_to_gpio(CONFIG_VIDEO_LCD_POWER);
+ if (pin >= 0) {
+ gpio_request(pin, "lcd_power");
+ gpio_direction_output(pin, 1);
+ }
+
+ if (reset_pin >= 0)
+ gpio_direction_output(reset_pin, 1); /* De-assert reset */
+}
+
+static void sunxi_lcdc_backlight_enable(void)
+{
+ int pin;
+
+ /*
+ * We want to have scanned out at least one frame before enabling the
+ * backlight to avoid the screen flashing to white when we enable it.
+ */
+ mdelay(40);
+
+ pin = sunxi_name_to_gpio(CONFIG_VIDEO_LCD_BL_EN);
+ if (pin >= 0)
+ gpio_direction_output(pin, 1);
+
+ pin = sunxi_name_to_gpio(CONFIG_VIDEO_LCD_BL_PWM);
+#ifdef SUNXI_PWM_PIN0
+ if (pin == SUNXI_PWM_PIN0) {
+ writel(SUNXI_PWM_CTRL_POLARITY0(PWM_ON) |
+ SUNXI_PWM_CTRL_ENABLE0 |
+ SUNXI_PWM_CTRL_PRESCALE0(0xf), SUNXI_PWM_CTRL_REG);
+ writel(SUNXI_PWM_PERIOD_80PCT, SUNXI_PWM_CH0_PERIOD);
+ sunxi_gpio_set_cfgpin(pin, SUNXI_PWM_MUX);
+ return;
+ }
+#endif
+ if (pin >= 0)
+ gpio_direction_output(pin, PWM_ON);
+}
+
+static void sunxi_lcdc_tcon0_mode_set(struct sunxi_display_priv *sunxi_display,
+ const struct ctfb_res_modes *mode,
+ bool for_ext_vga_dac)
+{
+ struct sunxi_lcdc_reg * const lcdc =
+ (struct sunxi_lcdc_reg *)SUNXI_LCD0_BASE;
+ struct sunxi_ccm_reg * const ccm =
+ (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
+ int clk_div, clk_double, pin;
+ struct display_timing timing;
+
+#if defined CONFIG_MACH_SUN8I && defined CONFIG_VIDEO_LCD_IF_LVDS
+ for (pin = SUNXI_GPD(18); pin <= SUNXI_GPD(27); pin++) {
+#else
+ for (pin = SUNXI_GPD(0); pin <= SUNXI_GPD(27); pin++) {
+#endif
+#ifdef CONFIG_VIDEO_LCD_IF_PARALLEL
+ sunxi_gpio_set_cfgpin(pin, SUNXI_GPD_LCD0);
+#endif
+#ifdef CONFIG_VIDEO_LCD_IF_LVDS
+ sunxi_gpio_set_cfgpin(pin, SUNXI_GPD_LVDS0);
+#endif
+#ifdef CONFIG_VIDEO_LCD_PANEL_EDP_4_LANE_1620M_VIA_ANX9804
+ sunxi_gpio_set_drv(pin, 3);
+#endif
+ }
+
+ lcdc_pll_set(ccm, 0, mode->pixclock_khz, &clk_div, &clk_double,
+ sunxi_is_composite(sunxi_display->monitor));
+
+ video_ctfb_mode_to_display_timing(mode, &timing);
+ lcdc_tcon0_mode_set(lcdc, &timing, clk_div, for_ext_vga_dac,
+ sunxi_display->depth, CONFIG_VIDEO_LCD_DCLK_PHASE);
+}
+
+#if defined CONFIG_VIDEO_HDMI || defined CONFIG_VIDEO_VGA || defined CONFIG_VIDEO_COMPOSITE
+static void sunxi_lcdc_tcon1_mode_set(const struct ctfb_res_modes *mode,
+ int *clk_div, int *clk_double,
+ bool use_portd_hvsync,
+ enum sunxi_monitor monitor)
+{
+ struct sunxi_lcdc_reg * const lcdc =
+ (struct sunxi_lcdc_reg *)SUNXI_LCD0_BASE;
+ struct sunxi_ccm_reg * const ccm =
+ (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
+ struct display_timing timing;
+
+ video_ctfb_mode_to_display_timing(mode, &timing);
+ lcdc_tcon1_mode_set(lcdc, &timing, use_portd_hvsync,
+ sunxi_is_composite(monitor));
+
+ if (use_portd_hvsync) {
+ sunxi_gpio_set_cfgpin(SUNXI_GPD(26), SUNXI_GPD_LCD0);
+ sunxi_gpio_set_cfgpin(SUNXI_GPD(27), SUNXI_GPD_LCD0);
+ }
+
+ lcdc_pll_set(ccm, 1, mode->pixclock_khz, clk_div, clk_double,
+ sunxi_is_composite(monitor));
+}
+#endif /* CONFIG_VIDEO_HDMI || defined CONFIG_VIDEO_VGA || CONFIG_VIDEO_COMPOSITE */
+
+#ifdef CONFIG_VIDEO_HDMI
+
+static void sunxi_hdmi_setup_info_frames(const struct ctfb_res_modes *mode)
+{
+ struct sunxi_hdmi_reg * const hdmi =
+ (struct sunxi_hdmi_reg *)SUNXI_HDMI_BASE;
+ u8 checksum = 0;
+ u8 avi_info_frame[17] = {
+ 0x82, 0x02, 0x0d, 0x00, 0x12, 0x00, 0x88, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00
+ };
+ u8 vendor_info_frame[19] = {
+ 0x81, 0x01, 0x06, 0x29, 0x03, 0x0c, 0x00, 0x40,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00
+ };
+ int i;
+
+ if (mode->pixclock_khz <= 27000)
+ avi_info_frame[5] = 0x40; /* SD-modes, ITU601 colorspace */
+ else
+ avi_info_frame[5] = 0x80; /* HD-modes, ITU709 colorspace */
+
+ if (mode->xres * 100 / mode->yres < 156)
+ avi_info_frame[5] |= 0x18; /* 4 : 3 */
+ else
+ avi_info_frame[5] |= 0x28; /* 16 : 9 */
+
+ for (i = 0; i < ARRAY_SIZE(avi_info_frame); i++)
+ checksum += avi_info_frame[i];
+
+ avi_info_frame[3] = 0x100 - checksum;
+
+ for (i = 0; i < ARRAY_SIZE(avi_info_frame); i++)
+ writeb(avi_info_frame[i], &hdmi->avi_info_frame[i]);
+
+ writel(SUNXI_HDMI_QCP_PACKET0, &hdmi->qcp_packet0);
+ writel(SUNXI_HDMI_QCP_PACKET1, &hdmi->qcp_packet1);
+
+ for (i = 0; i < ARRAY_SIZE(vendor_info_frame); i++)
+ writeb(vendor_info_frame[i], &hdmi->vendor_info_frame[i]);
+
+ writel(SUNXI_HDMI_PKT_CTRL0, &hdmi->pkt_ctrl0);
+ writel(SUNXI_HDMI_PKT_CTRL1, &hdmi->pkt_ctrl1);
+
+ setbits_le32(&hdmi->video_ctrl, SUNXI_HDMI_VIDEO_CTRL_HDMI);
+}
+
+static void sunxi_hdmi_mode_set(const struct ctfb_res_modes *mode,
+ int clk_div, int clk_double,
+ enum sunxi_monitor monitor)
+{
+ struct sunxi_hdmi_reg * const hdmi =
+ (struct sunxi_hdmi_reg *)SUNXI_HDMI_BASE;
+ int x, y;
+
+ /* Write clear interrupt status bits */
+ writel(SUNXI_HDMI_IRQ_STATUS_BITS, &hdmi->irq);
+
+ if (monitor == sunxi_monitor_hdmi)
+ sunxi_hdmi_setup_info_frames(mode);
+
+ /* Set input sync enable */
+ writel(SUNXI_HDMI_UNKNOWN_INPUT_SYNC, &hdmi->unknown);
+
+ /* Init various registers, select pll3 as clock source */
+ writel(SUNXI_HDMI_VIDEO_POL_TX_CLK, &hdmi->video_polarity);
+ writel(SUNXI_HDMI_PAD_CTRL0_RUN, &hdmi->pad_ctrl0);
+ writel(SUNXI_HDMI_PAD_CTRL1, &hdmi->pad_ctrl1);
+ writel(SUNXI_HDMI_PLL_CTRL, &hdmi->pll_ctrl);
+ writel(SUNXI_HDMI_PLL_DBG0_PLL3, &hdmi->pll_dbg0);
+
+ /* Setup clk div and doubler */
+ clrsetbits_le32(&hdmi->pll_ctrl, SUNXI_HDMI_PLL_CTRL_DIV_MASK,
+ SUNXI_HDMI_PLL_CTRL_DIV(clk_div));
+ if (!clk_double)
+ setbits_le32(&hdmi->pad_ctrl1, SUNXI_HDMI_PAD_CTRL1_HALVE);
+
+ /* Setup timing registers */
+ writel(SUNXI_HDMI_Y(mode->yres) | SUNXI_HDMI_X(mode->xres),
+ &hdmi->video_size);
+
+ x = mode->hsync_len + mode->left_margin;
+ y = mode->vsync_len + mode->upper_margin;
+ writel(SUNXI_HDMI_Y(y) | SUNXI_HDMI_X(x), &hdmi->video_bp);
+
+ x = mode->right_margin;
+ y = mode->lower_margin;
+ writel(SUNXI_HDMI_Y(y) | SUNXI_HDMI_X(x), &hdmi->video_fp);
+
+ x = mode->hsync_len;
+ y = mode->vsync_len;
+ writel(SUNXI_HDMI_Y(y) | SUNXI_HDMI_X(x), &hdmi->video_spw);
+
+ if (mode->sync & FB_SYNC_HOR_HIGH_ACT)
+ setbits_le32(&hdmi->video_polarity, SUNXI_HDMI_VIDEO_POL_HOR);
+
+ if (mode->sync & FB_SYNC_VERT_HIGH_ACT)
+ setbits_le32(&hdmi->video_polarity, SUNXI_HDMI_VIDEO_POL_VER);
+}
+
+static void sunxi_hdmi_enable(void)
+{
+ struct sunxi_hdmi_reg * const hdmi =
+ (struct sunxi_hdmi_reg *)SUNXI_HDMI_BASE;
+
+ udelay(100);
+ setbits_le32(&hdmi->video_ctrl, SUNXI_HDMI_VIDEO_CTRL_ENABLE);
+}
+
+#endif /* CONFIG_VIDEO_HDMI */
+
+#if defined CONFIG_VIDEO_VGA || defined CONFIG_VIDEO_COMPOSITE
+
+static void sunxi_tvencoder_mode_set(enum sunxi_monitor monitor)
+{
+ struct sunxi_ccm_reg * const ccm =
+ (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
+ struct sunxi_tve_reg * const tve =
+ (struct sunxi_tve_reg *)SUNXI_TVE0_BASE;
+
+ /* Reset off */
+ setbits_le32(&ccm->lcd0_ch0_clk_cfg, CCM_LCD_CH0_CTRL_TVE_RST);
+ /* Clock on */
+ setbits_le32(&ccm->ahb_gate1, 1 << AHB_GATE_OFFSET_TVE0);
+
+ switch (monitor) {
+ case sunxi_monitor_vga:
+ tvencoder_mode_set(tve, tve_mode_vga);
+ break;
+ case sunxi_monitor_composite_pal_nc:
+ tvencoder_mode_set(tve, tve_mode_composite_pal_nc);
+ break;
+ case sunxi_monitor_composite_pal:
+ tvencoder_mode_set(tve, tve_mode_composite_pal);
+ break;
+ case sunxi_monitor_composite_pal_m:
+ tvencoder_mode_set(tve, tve_mode_composite_pal_m);
+ break;
+ case sunxi_monitor_composite_ntsc:
+ tvencoder_mode_set(tve, tve_mode_composite_ntsc);
+ break;
+ case sunxi_monitor_none:
+ case sunxi_monitor_dvi:
+ case sunxi_monitor_hdmi:
+ case sunxi_monitor_lcd:
+ break;
+ }
+}
+
+#endif /* CONFIG_VIDEO_VGA || defined CONFIG_VIDEO_COMPOSITE */
+
+static void sunxi_drc_init(void)
+{
+#ifdef CONFIG_SUNXI_GEN_SUN6I
+ struct sunxi_ccm_reg * const ccm =
+ (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
+
+ /* On sun6i the drc must be clocked even when in pass-through mode */
+#ifdef CONFIG_MACH_SUN8I_A33
+ setbits_le32(&ccm->ahb_reset1_cfg, 1 << AHB_RESET_OFFSET_SAT);
+#endif
+ setbits_le32(&ccm->ahb_reset1_cfg, 1 << AHB_RESET_OFFSET_DRC0);
+ clock_set_de_mod_clock(&ccm->iep_drc0_clk_cfg, 300000000);
+#endif
+}
+
+#ifdef CONFIG_VIDEO_VGA_VIA_LCD
+static void sunxi_vga_external_dac_enable(void)
+{
+ int pin;
+
+ pin = sunxi_name_to_gpio(CONFIG_VIDEO_VGA_EXTERNAL_DAC_EN);
+ if (pin >= 0) {
+ gpio_request(pin, "vga_enable");
+ gpio_direction_output(pin, 1);
+ }
+}
+#endif /* CONFIG_VIDEO_VGA_VIA_LCD */
+
+#ifdef CONFIG_VIDEO_LCD_SSD2828
+static int sunxi_ssd2828_init(const struct ctfb_res_modes *mode)
+{
+ struct ssd2828_config cfg = {
+ .csx_pin = name_to_gpio(CONFIG_VIDEO_LCD_SPI_CS),
+ .sck_pin = name_to_gpio(CONFIG_VIDEO_LCD_SPI_SCLK),
+ .sdi_pin = name_to_gpio(CONFIG_VIDEO_LCD_SPI_MOSI),
+ .sdo_pin = name_to_gpio(CONFIG_VIDEO_LCD_SPI_MISO),
+ .reset_pin = name_to_gpio(CONFIG_VIDEO_LCD_SSD2828_RESET),
+ .ssd2828_tx_clk_khz = CONFIG_VIDEO_LCD_SSD2828_TX_CLK * 1000,
+ .ssd2828_color_depth = 24,
+#ifdef CONFIG_VIDEO_LCD_PANEL_MIPI_4_LANE_513_MBPS_VIA_SSD2828
+ .mipi_dsi_number_of_data_lanes = 4,
+ .mipi_dsi_bitrate_per_data_lane_mbps = 513,
+ .mipi_dsi_delay_after_exit_sleep_mode_ms = 100,
+ .mipi_dsi_delay_after_set_display_on_ms = 200
+#else
+#error MIPI LCD panel needs configuration parameters
+#endif
+ };
+
+ if (cfg.csx_pin == -1 || cfg.sck_pin == -1 || cfg.sdi_pin == -1) {
+ printf("SSD2828: SPI pins are not properly configured\n");
+ return 1;
+ }
+ if (cfg.reset_pin == -1) {
+ printf("SSD2828: Reset pin is not properly configured\n");
+ return 1;
+ }
+
+ return ssd2828_init(&cfg, mode);
+}
+#endif /* CONFIG_VIDEO_LCD_SSD2828 */
+
+static void sunxi_engines_init(void)
+{
+ sunxi_composer_init();
+ sunxi_lcdc_init();
+ sunxi_drc_init();
+}
+
+static void sunxi_mode_set(struct sunxi_display_priv *sunxi_display,
+ const struct ctfb_res_modes *mode,
+ unsigned int address)
+{
+ enum sunxi_monitor monitor = sunxi_display->monitor;
+ int __maybe_unused clk_div, clk_double;
+ struct sunxi_lcdc_reg * const lcdc =
+ (struct sunxi_lcdc_reg *)SUNXI_LCD0_BASE;
+ struct sunxi_tve_reg * __maybe_unused const tve =
+ (struct sunxi_tve_reg *)SUNXI_TVE0_BASE;
+
+ switch (sunxi_display->monitor) {
+ case sunxi_monitor_none:
+ break;
+ case sunxi_monitor_dvi:
+ case sunxi_monitor_hdmi:
+#ifdef CONFIG_VIDEO_HDMI
+ sunxi_composer_mode_set(mode, address, monitor);
+ sunxi_lcdc_tcon1_mode_set(mode, &clk_div, &clk_double, 0, monitor);
+ sunxi_hdmi_mode_set(mode, clk_div, clk_double, monitor);
+ sunxi_composer_enable();
+ lcdc_enable(lcdc, sunxi_display->depth);
+ sunxi_hdmi_enable();
+#endif
+ break;
+ case sunxi_monitor_lcd:
+ sunxi_lcdc_panel_enable();
+ if (IS_ENABLED(CONFIG_VIDEO_LCD_PANEL_EDP_4_LANE_1620M_VIA_ANX9804)) {
+ /*
+ * The anx9804 needs 1.8V from eldo3, we do this here
+ * and not via CONFIG_AXP_ELDO3_VOLT from board_init()
+ * to avoid turning this on when using hdmi output.
+ */
+ axp_set_eldo(3, 1800);
+ anx9804_init(CONFIG_VIDEO_LCD_I2C_BUS, 4,
+ ANX9804_DATA_RATE_1620M,
+ sunxi_display->depth);
+ }
+ if (IS_ENABLED(CONFIG_VIDEO_LCD_HITACHI_TX18D42VM)) {
+ mdelay(50); /* Wait for lcd controller power on */
+ hitachi_tx18d42vm_init();
+ }
+ if (IS_ENABLED(CONFIG_VIDEO_LCD_TL059WV5C0)) {
+ unsigned int orig_i2c_bus = i2c_get_bus_num();
+ i2c_set_bus_num(CONFIG_VIDEO_LCD_I2C_BUS);
+ i2c_reg_write(0x5c, 0x04, 0x42); /* Turn on the LCD */
+ i2c_set_bus_num(orig_i2c_bus);
+ }
+ sunxi_composer_mode_set(mode, address, monitor);
+ sunxi_lcdc_tcon0_mode_set(sunxi_display, mode, false);
+ sunxi_composer_enable();
+ lcdc_enable(lcdc, sunxi_display->depth);
+#ifdef CONFIG_VIDEO_LCD_SSD2828
+ sunxi_ssd2828_init(mode);
+#endif
+ sunxi_lcdc_backlight_enable();
+ break;
+ case sunxi_monitor_vga:
+#ifdef CONFIG_VIDEO_VGA
+ sunxi_composer_mode_set(mode, address, monitor);
+ sunxi_lcdc_tcon1_mode_set(mode, &clk_div, &clk_double, 1, monitor);
+ sunxi_tvencoder_mode_set(monitor);
+ sunxi_composer_enable();
+ lcdc_enable(lcdc, sunxi_display->depth);
+ tvencoder_enable(tve);
+#elif defined CONFIG_VIDEO_VGA_VIA_LCD
+ sunxi_composer_mode_set(mode, address, monitor);
+ sunxi_lcdc_tcon0_mode_set(sunxi_display, mode, true);
+ sunxi_composer_enable();
+ lcdc_enable(lcdc, sunxi_display->depth);
+ sunxi_vga_external_dac_enable();
+#endif
+ break;
+ case sunxi_monitor_composite_pal:
+ case sunxi_monitor_composite_ntsc:
+ case sunxi_monitor_composite_pal_m:
+ case sunxi_monitor_composite_pal_nc:
+#ifdef CONFIG_VIDEO_COMPOSITE
+ sunxi_composer_mode_set(mode, address, monitor);
+ sunxi_lcdc_tcon1_mode_set(mode, &clk_div, &clk_double, 0, monitor);
+ sunxi_tvencoder_mode_set(monitor);
+ sunxi_composer_enable();
+ lcdc_enable(lcdc, sunxi_display->depth);
+ tvencoder_enable(tve);
+#endif
+ break;
+ }
+}
+
+static const char *sunxi_get_mon_desc(enum sunxi_monitor monitor)
+{
+ switch (monitor) {
+ case sunxi_monitor_dvi: return "dvi";
+ case sunxi_monitor_hdmi: return "hdmi";
+ case sunxi_monitor_lcd: return "lcd";
+ case sunxi_monitor_vga: return "vga";
+ case sunxi_monitor_composite_pal: return "composite-pal";
+ case sunxi_monitor_composite_ntsc: return "composite-ntsc";
+ case sunxi_monitor_composite_pal_m: return "composite-pal-m";
+ case sunxi_monitor_composite_pal_nc: return "composite-pal-nc";
+ case sunxi_monitor_none: /* fall through */
+ default: return "none";
+ }
+}
+
+static bool sunxi_has_hdmi(void)
+{
+#ifdef CONFIG_VIDEO_HDMI
+ return true;
+#else
+ return false;
+#endif
+}
+
+static bool sunxi_has_lcd(void)
+{
+ char *lcd_mode = CONFIG_VIDEO_LCD_MODE;
+
+ return lcd_mode[0] != 0;
+}
+
+static bool sunxi_has_vga(void)
+{
+#if defined CONFIG_VIDEO_VGA || defined CONFIG_VIDEO_VGA_VIA_LCD
+ return true;
+#else
+ return false;
+#endif
+}
+
+static bool sunxi_has_composite(void)
+{
+#ifdef CONFIG_VIDEO_COMPOSITE
+ return true;
+#else
+ return false;
+#endif
+}
+
+static enum sunxi_monitor sunxi_get_default_mon(bool allow_hdmi)
+{
+ if (allow_hdmi && sunxi_has_hdmi())
+ return sunxi_monitor_dvi;
+ else if (sunxi_has_lcd())
+ return sunxi_monitor_lcd;
+ else if (sunxi_has_vga())
+ return sunxi_monitor_vga;
+ else if (sunxi_has_composite())
+ return sunxi_monitor_composite_pal;
+ else
+ return sunxi_monitor_none;
+}
+
+static int sunxi_de_probe(struct udevice *dev)
+{
+ struct video_priv *uc_priv = dev_get_uclass_priv(dev);
+ struct video_uc_plat *plat = dev_get_uclass_plat(dev);
+ struct sunxi_display_priv *sunxi_display = dev_get_priv(dev);
+ const struct ctfb_res_modes *mode;
+ struct ctfb_res_modes custom;
+ const char *options;
+#ifdef CONFIG_VIDEO_HDMI
+ int hpd, hpd_delay, edid;
+ bool hdmi_present;
+#endif
+ int i, overscan_offset, overscan_x, overscan_y;
+ unsigned int fb_dma_addr;
+ char mon[16];
+ char *lcd_mode = CONFIG_VIDEO_LCD_MODE;
+
+ video_get_ctfb_res_modes(RES_MODE_1024x768, 24, &mode,
+ &sunxi_display->depth, &options);
+#ifdef CONFIG_VIDEO_HDMI
+ hpd = video_get_option_int(options, "hpd", 1);
+ hpd_delay = video_get_option_int(options, "hpd_delay", 500);
+ edid = video_get_option_int(options, "edid", 1);
+#endif
+ overscan_x = video_get_option_int(options, "overscan_x", -1);
+ overscan_y = video_get_option_int(options, "overscan_y", -1);
+ sunxi_display->monitor = sunxi_get_default_mon(true);
+ video_get_option_string(options, "monitor", mon, sizeof(mon),
+ sunxi_get_mon_desc(sunxi_display->monitor));
+ for (i = 0; i <= SUNXI_MONITOR_LAST; i++) {
+ if (strcmp(mon, sunxi_get_mon_desc(i)) == 0) {
+ sunxi_display->monitor = i;
+ break;
+ }
+ }
+ if (i > SUNXI_MONITOR_LAST)
+ printf("Unknown monitor: '%s', falling back to '%s'\n",
+ mon, sunxi_get_mon_desc(sunxi_display->monitor));
+
+#ifdef CONFIG_VIDEO_HDMI
+ /* If HDMI/DVI is selected do HPD & EDID, and handle fallback */
+ if (sunxi_display->monitor == sunxi_monitor_dvi ||
+ sunxi_display->monitor == sunxi_monitor_hdmi) {
+ /* Always call hdp_detect, as it also enables clocks, etc. */
+ hdmi_present = (sunxi_hdmi_hpd_detect(hpd_delay) == 1);
+ if (hdmi_present && edid) {
+ printf("HDMI connected: ");
+ if (sunxi_hdmi_edid_get_mode(sunxi_display, &custom, true) == 0)
+ mode = &custom;
+ else
+ hdmi_present = false;
+ }
+ /* Fall back to EDID in case HPD failed */
+ if (edid && !hdmi_present) {
+ if (sunxi_hdmi_edid_get_mode(sunxi_display, &custom, false) == 0) {
+ mode = &custom;
+ hdmi_present = true;
+ }
+ }
+ /* Shut down when display was not found */
+ if ((hpd || edid) && !hdmi_present) {
+ sunxi_hdmi_shutdown();
+ sunxi_display->monitor = sunxi_get_default_mon(false);
+ } /* else continue with hdmi/dvi without a cable connected */
+ }
+#endif
+
+ switch (sunxi_display->monitor) {
+ case sunxi_monitor_none:
+ printf("Unknown monitor\n");
+ return -EINVAL;
+ case sunxi_monitor_dvi:
+ case sunxi_monitor_hdmi:
+ if (!sunxi_has_hdmi()) {
+ printf("HDMI/DVI not supported on this board\n");
+ sunxi_display->monitor = sunxi_monitor_none;
+ return -EINVAL;
+ }
+ break;
+ case sunxi_monitor_lcd:
+ if (!sunxi_has_lcd()) {
+ printf("LCD not supported on this board\n");
+ sunxi_display->monitor = sunxi_monitor_none;
+ return -EINVAL;
+ }
+ sunxi_display->depth = video_get_params(&custom, lcd_mode);
+ mode = &custom;
+ break;
+ case sunxi_monitor_vga:
+ if (!sunxi_has_vga()) {
+ printf("VGA not supported on this board\n");
+ sunxi_display->monitor = sunxi_monitor_none;
+ return -EINVAL;
+ }
+ sunxi_display->depth = 18;
+ break;
+ case sunxi_monitor_composite_pal:
+ case sunxi_monitor_composite_ntsc:
+ case sunxi_monitor_composite_pal_m:
+ case sunxi_monitor_composite_pal_nc:
+ if (!sunxi_has_composite()) {
+ printf("Composite video not supported on this board\n");
+ sunxi_display->monitor = sunxi_monitor_none;
+ return -EINVAL;
+ }
+ if (sunxi_display->monitor == sunxi_monitor_composite_pal ||
+ sunxi_display->monitor == sunxi_monitor_composite_pal_nc)
+ mode = &composite_video_modes[0];
+ else
+ mode = &composite_video_modes[1];
+ sunxi_display->depth = 24;
+ break;
+ }
+
+ /* Yes these defaults are quite high, overscan on composite sucks... */
+ if (overscan_x == -1)
+ overscan_x = sunxi_is_composite(sunxi_display->monitor) ? 32 : 0;
+ if (overscan_y == -1)
+ overscan_y = sunxi_is_composite(sunxi_display->monitor) ? 20 : 0;
+
+ sunxi_display->fb_size = plat->size;
+ overscan_offset = (overscan_y * mode->xres + overscan_x) * 4;
+ /* We want to keep the fb_base for simplefb page aligned, where as
+ * the sunxi dma engines will happily accept an unaligned address. */
+ if (overscan_offset)
+ sunxi_display->fb_size += 0x1000;
+
+ printf("Setting up a %dx%d%s %s console (overscan %dx%d)\n",
+ mode->xres, mode->yres,
+ (mode->vmode == FB_VMODE_INTERLACED) ? "i" : "",
+ sunxi_get_mon_desc(sunxi_display->monitor),
+ overscan_x, overscan_y);
+
+ sunxi_display->fb_addr = plat->base;
+ sunxi_engines_init();
+
+#ifdef CONFIG_EFI_LOADER
+ efi_add_memory_map(sunxi_display->fb_addr, sunxi_display->fb_size,
+ EFI_RESERVED_MEMORY_TYPE);
+#endif
+
+ fb_dma_addr = sunxi_display->fb_addr - CONFIG_SYS_SDRAM_BASE;
+ if (overscan_offset) {
+ fb_dma_addr += 0x1000 - (overscan_offset & 0xfff);
+ sunxi_display->fb_addr += ALIGN(overscan_offset, 0x1000);
+ memset((void *)sunxi_display->fb_addr, 0, sunxi_display->fb_size);
+ flush_cache(sunxi_display->fb_addr, sunxi_display->fb_size);
+ }
+ sunxi_mode_set(sunxi_display, mode, fb_dma_addr);
+
+ /* The members of struct video_priv to be set by the driver. */
+ uc_priv->bpix = VIDEO_BPP32;
+ uc_priv->xsize = mode->xres;
+ uc_priv->ysize = mode->yres;
+
+ video_set_flush_dcache(dev, true);
+
+ return 0;
+}
+
+static int sunxi_de_bind(struct udevice *dev)
+{
+ struct video_uc_plat *plat = dev_get_uclass_plat(dev);
+
+ plat->size = LCD_MAX_WIDTH * LCD_MAX_HEIGHT * VNBYTES(LCD_MAX_LOG2_BPP);
+
+ return 0;
+}
+
+static const struct video_ops sunxi_de_ops = {
+};
+
+U_BOOT_DRIVER(sunxi_de) = {
+ .name = "sunxi_de",
+ .id = UCLASS_VIDEO,
+ .ops = &sunxi_de_ops,
+ .bind = sunxi_de_bind,
+ .probe = sunxi_de_probe,
+ .priv_auto = sizeof(struct sunxi_display_priv),
+ .flags = DM_FLAG_PRE_RELOC,
+};
+
+U_BOOT_DRVINFO(sunxi_de) = {
+ .name = "sunxi_de"
+};
+
+/*
+ * Simplefb support.
+ */
+#if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_VIDEO_DT_SIMPLEFB)
+int sunxi_simplefb_setup(void *blob)
+{
+ struct sunxi_display_priv *sunxi_display;
+ struct video_priv *uc_priv;
+ struct udevice *de;
+ int offset, ret;
+ u64 start, size;
+ const char *pipeline = NULL;
+
+#ifdef CONFIG_MACH_SUN4I
+#define PIPELINE_PREFIX "de_fe0-"
+#else
+#define PIPELINE_PREFIX
+#endif
+
+ ret = uclass_find_device_by_name(UCLASS_VIDEO, "sunxi_de", &de);
+ if (ret) {
+ printf("DE not present\n");
+ return 0;
+ } else if (!device_active(de)) {
+ printf("DE is present but not probed\n");
+ return 0;
+ }
+
+ uc_priv = dev_get_uclass_priv(de);
+ sunxi_display = dev_get_priv(de);
+
+ switch (sunxi_display->monitor) {
+ case sunxi_monitor_none:
+ return 0;
+ case sunxi_monitor_dvi:
+ case sunxi_monitor_hdmi:
+ pipeline = PIPELINE_PREFIX "de_be0-lcd0-hdmi";
+ break;
+ case sunxi_monitor_lcd:
+ pipeline = PIPELINE_PREFIX "de_be0-lcd0";
+ break;
+ case sunxi_monitor_vga:
+#ifdef CONFIG_VIDEO_VGA
+ pipeline = PIPELINE_PREFIX "de_be0-lcd0-tve0";
+#elif defined CONFIG_VIDEO_VGA_VIA_LCD
+ pipeline = PIPELINE_PREFIX "de_be0-lcd0";
+#endif
+ break;
+ case sunxi_monitor_composite_pal:
+ case sunxi_monitor_composite_ntsc:
+ case sunxi_monitor_composite_pal_m:
+ case sunxi_monitor_composite_pal_nc:
+ pipeline = PIPELINE_PREFIX "de_be0-lcd0-tve0";
+ break;
+ }
+
+ offset = sunxi_simplefb_fdt_match(blob, pipeline);
+ if (offset < 0) {
+ eprintf("Cannot setup simplefb: node not found\n");
+ return 0; /* Keep older kernels working */
+ }
+
+ /*
+ * Do not report the framebuffer as free RAM to the OS, note we cannot
+ * use fdt_add_mem_rsv() here, because then it is still seen as RAM,
+ * and e.g. Linux refuses to iomap RAM on ARM, see:
+ * linux/arch/arm/mm/ioremap.c around line 301.
+ */
+ start = gd->bd->bi_dram[0].start;
+ size = sunxi_display->fb_addr - start;
+ ret = fdt_fixup_memory_banks(blob, &start, &size, 1);
+ if (ret) {
+ eprintf("Cannot setup simplefb: Error reserving memory\n");
+ return ret;
+ }
+
+ ret = fdt_setup_simplefb_node(blob, offset, sunxi_display->fb_addr,
+ uc_priv->xsize, uc_priv->ysize,
+ VNBYTES(uc_priv->bpix) * uc_priv->xsize,
+ "x8r8g8b8");
+ if (ret)
+ eprintf("Cannot setup simplefb: Error setting properties\n");
+
+ return ret;
+}
+#endif /* CONFIG_OF_BOARD_SETUP && CONFIG_VIDEO_DT_SIMPLEFB */