[U-Boot] [PATCH 6/8] sunxi: video: Add A64/H3/H5 HDMI driver
Jernej Skrabec
jernej.skrabec at siol.net
Wed Mar 8 23:34:42 UTC 2017
This commit adds support for HDMI output.
Signed-off-by: Jernej Skrabec <jernej.skrabec at siol.net>
---
arch/arm/include/asm/arch-sunxi/cpu_sun4i.h | 8 +
arch/arm/include/asm/arch-sunxi/display2.h | 124 +++++++++
board/sunxi/Kconfig | 10 +
drivers/video/sunxi/Makefile | 1 +
drivers/video/sunxi/sunxi_de2.c | 258 ++++++++++++++++++
drivers/video/sunxi/sunxi_dw_hdmi.c | 389 ++++++++++++++++++++++++++++
include/configs/sunxi-common.h | 5 +
7 files changed, 795 insertions(+)
create mode 100644 arch/arm/include/asm/arch-sunxi/display2.h
create mode 100644 drivers/video/sunxi/sunxi_de2.c
create mode 100644 drivers/video/sunxi/sunxi_dw_hdmi.c
diff --git a/arch/arm/include/asm/arch-sunxi/cpu_sun4i.h b/arch/arm/include/asm/arch-sunxi/cpu_sun4i.h
index ea672fe844..3ce46d024e 100644
--- a/arch/arm/include/asm/arch-sunxi/cpu_sun4i.h
+++ b/arch/arm/include/asm/arch-sunxi/cpu_sun4i.h
@@ -18,6 +18,8 @@
#define SUNXI_SRAM_D_BASE 0x00010000 /* 4 kiB */
#define SUNXI_SRAM_B_BASE 0x00020000 /* 64 kiB (secure) */
+#define SUNXI_DE2_BASE 0x01000000
+
#ifdef CONFIG_MACH_SUN8I_A83T
#define SUNXI_CPUCFG_BASE 0x01700000
#endif
@@ -46,7 +48,9 @@
#define SUNXI_USB1_BASE 0x01c14000
#endif
#define SUNXI_SS_BASE 0x01c15000
+#if !defined(CONFIG_MACH_SUNXI_H3_H5) && !defined(CONFIG_MACH_SUN50I)
#define SUNXI_HDMI_BASE 0x01c16000
+#endif
#define SUNXI_SPI2_BASE 0x01c17000
#define SUNXI_SATA_BASE 0x01c18000
#ifdef CONFIG_SUNXI_GEN_SUN4I
@@ -164,6 +168,10 @@ defined(CONFIG_MACH_SUN50I)
#define SUNXI_MP_BASE 0x01e80000
#define SUNXI_AVG_BASE 0x01ea0000
+#if defined(CONFIG_MACH_SUNXI_H3_H5) || defined(CONFIG_MACH_SUN50I)
+#define SUNXI_HDMI_BASE 0x01ee0000
+#endif
+
#define SUNXI_RTC_BASE 0x01f00000
#define SUNXI_PRCM_BASE 0x01f01400
diff --git a/arch/arm/include/asm/arch-sunxi/display2.h b/arch/arm/include/asm/arch-sunxi/display2.h
new file mode 100644
index 0000000000..b5875f9605
--- /dev/null
+++ b/arch/arm/include/asm/arch-sunxi/display2.h
@@ -0,0 +1,124 @@
+/*
+ * Sunxi platform display controller register and constant defines
+ *
+ * (C) Copyright 2017 Jernej Skrabec <jernej.skrabec at siol.net>
+ *
+ * Based on out of tree Linux DRM driver defines:
+ * Copyright (C) 2016 Jean-Francois Moine <moinejf at free.fr>
+ * Copyright (c) 2016 Allwinnertech Co., Ltd.
+*
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef _SUNXI_DISPLAY2_H
+#define _SUNXI_DISPLAY2_H
+
+/* internal clock settings */
+struct de_clk {
+ u32 gate_cfg;
+ u32 bus_cfg;
+ u32 rst_cfg;
+ u32 div_cfg;
+ u32 sel_cfg;
+};
+
+/* global control */
+struct de_glb {
+ u32 ctl;
+ u32 status;
+ u32 dbuff;
+ u32 size;
+};
+
+/* alpha blending */
+struct de_bld {
+ u32 fcolor_ctl;
+ struct {
+ u32 fcolor;
+ u32 insize;
+ u32 offset;
+ u32 dum;
+ } attr[4];
+ u32 dum0[15];
+ u32 route;
+ u32 premultiply;
+ u32 bkcolor;
+ u32 output_size;
+ u32 bld_mode[4];
+ u32 dum1[4];
+ u32 ck_ctl;
+ u32 ck_cfg;
+ u32 dum2[2];
+ u32 ck_max[4];
+ u32 dum3[4];
+ u32 ck_min[4];
+ u32 dum4[3];
+ u32 out_ctl;
+};
+
+/* VI channel */
+struct de_vi {
+ struct {
+ u32 attr;
+ u32 size;
+ u32 coord;
+ u32 pitch[3];
+ u32 top_laddr[3];
+ u32 bot_laddr[3];
+ } cfg[4];
+ u32 fcolor[4];
+ u32 top_haddr[3];
+ u32 bot_haddr[3];
+ u32 ovl_size[2];
+ u32 hori[2];
+ u32 vert[2];
+};
+
+struct de_ui {
+ struct {
+ u32 attr;
+ u32 size;
+ u32 coord;
+ u32 pitch;
+ u32 top_laddr;
+ u32 bot_laddr;
+ u32 fcolor;
+ u32 dum;
+ } cfg[4];
+ u32 top_haddr;
+ u32 bot_haddr;
+ u32 ovl_size;
+};
+
+/*
+ * DE register constants.
+ */
+#define SUNXI_DE2_MUX0_BASE (SUNXI_DE2_BASE + 0x100000)
+#define SUNXI_DE2_MUX1_BASE (SUNXI_DE2_BASE + 0x200000)
+
+#define SUNXI_DE2_MUX_GLB_REGS 0x00000
+#define SUNXI_DE2_MUX_BLD_REGS 0x01000
+#define SUNXI_DE2_MUX_CHAN_REGS 0x02000
+#define SUNXI_DE2_MUX_CHAN_SZ 0x1000
+#define SUNXI_DE2_MUX_VSU_REGS 0x20000
+#define SUNXI_DE2_MUX_GSU1_REGS 0x30000
+#define SUNXI_DE2_MUX_GSU2_REGS 0x40000
+#define SUNXI_DE2_MUX_GSU3_REGS 0x50000
+#define SUNXI_DE2_MUX_FCE_REGS 0xa0000
+#define SUNXI_DE2_MUX_BWS_REGS 0xa2000
+#define SUNXI_DE2_MUX_LTI_REGS 0xa4000
+#define SUNXI_DE2_MUX_PEAK_REGS 0xa6000
+#define SUNXI_DE2_MUX_ASE_REGS 0xa8000
+#define SUNXI_DE2_MUX_FCC_REGS 0xaa000
+#define SUNXI_DE2_MUX_DCSC_REGS 0xb0000
+
+#define SUNXI_DE2_FORMAT_XRGB_8888 4
+#define SUNXI_DE2_FORMAT_RGB_565 10
+
+#define SUNXI_DE2_MUX_GLB_CTL_EN (1 << 0)
+#define SUNXI_DE2_UI_CFG_ATTR_EN (1 << 0)
+#define SUNXI_DE2_UI_CFG_ATTR_FMT(f) ((f & 0xf) << 8)
+
+#define SUNXI_DE2_WH(w, h) (((h - 1) << 16) | (w - 1))
+
+#endif /* _SUNXI_DISPLAY2_H */
diff --git a/board/sunxi/Kconfig b/board/sunxi/Kconfig
index 3e0e262473..7347ad61cd 100644
--- a/board/sunxi/Kconfig
+++ b/board/sunxi/Kconfig
@@ -704,6 +704,16 @@ config VIDEO_LCD_TL059WV5C0
endchoice
+config VIDEO_DE2
+ bool"Display Engine 2 video driver"
+ depends on MACH_SUNXI_H3_H5 || MACH_SUN50I
+ select DM_VIDEO
+ select DISPLAY
+ default y
+ ---help---
+ Say y here if you want to build DE2 video driver which is present on
+ newer SoCs. Currently only HDMI output is supported.
+
config GMAC_TX_DELAY
int "GMAC Transmit Clock Delay Chain"
diff --git a/drivers/video/sunxi/Makefile b/drivers/video/sunxi/Makefile
index dfc9b47a1f..b8afd892ad 100644
--- a/drivers/video/sunxi/Makefile
+++ b/drivers/video/sunxi/Makefile
@@ -6,3 +6,4 @@
#
obj-$(CONFIG_VIDEO_SUNXI) += sunxi_display.o lcdc.o ../videomodes.o
+obj-$(CONFIG_VIDEO_DE2) += sunxi_de2.o sunxi_dw_hdmi.o lcdc.o ../dw_hdmi.o
diff --git a/drivers/video/sunxi/sunxi_de2.c b/drivers/video/sunxi/sunxi_de2.c
new file mode 100644
index 0000000000..47872b4c6d
--- /dev/null
+++ b/drivers/video/sunxi/sunxi_de2.c
@@ -0,0 +1,258 @@
+/*
+ * Allwinner DE2 display driver
+ *
+ * (C) Copyright 2017 Jernej Skrabec <jernej.skrabec at siol.net>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <display.h>
+#include <dm.h>
+#include <edid.h>
+#include <video.h>
+#include <asm/global_data.h>
+#include <asm/io.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/display2.h>
+#include <dm/device-internal.h>
+#include <dm/uclass-internal.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+enum {
+ /* Maximum LCD size we support */
+ LCD_MAX_WIDTH = 3840,
+ LCD_MAX_HEIGHT = 2160,
+ LCD_MAX_LOG2_BPP = VIDEO_BPP32,
+};
+
+static void sunxi_de2_composer_init(void)
+{
+ struct sunxi_ccm_reg * const ccm =
+ (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
+
+#ifdef CONFIG_MACH_SUN50I
+ u32 reg_value;
+
+ /* set SRAM for video use (A64 only) */
+ reg_value = readl(SUNXI_SRAMC_BASE + 0x04);
+ reg_value &= ~(0x01 << 24);
+ writel(reg_value, SUNXI_SRAMC_BASE + 0x04);
+#endif
+
+ clock_set_pll10(432000000);
+
+ /* Set DE parent to pll10 */
+ clrsetbits_le32(&ccm->de_clk_cfg, CCM_DE2_CTRL_PLL_MASK,
+ CCM_DE2_CTRL_PLL10);
+
+ /* Set ahb gating to pass */
+ setbits_le32(&ccm->ahb_reset1_cfg, 1 << AHB_RESET_OFFSET_DE);
+ setbits_le32(&ccm->ahb_gate1, 1 << AHB_GATE_OFFSET_DE);
+
+ /* Clock on */
+ setbits_le32(&ccm->de_clk_cfg, CCM_DE2_CTRL_GATE);
+}
+
+static void sunxi_de2_mode_set(int mux, const struct display_timing *mode,
+ int bpp, ulong address)
+{
+ ulong de_mux_base = (mux == 0) ?
+ SUNXI_DE2_MUX0_BASE : SUNXI_DE2_MUX1_BASE;
+ struct de_clk * const de_clk_regs =
+ (struct de_clk *)(SUNXI_DE2_BASE);
+ struct de_glb * const de_glb_regs =
+ (struct de_glb *)(de_mux_base +
+ SUNXI_DE2_MUX_GLB_REGS);
+ struct de_bld * const de_bld_regs =
+ (struct de_bld *)(de_mux_base +
+ SUNXI_DE2_MUX_BLD_REGS);
+ struct de_ui * const de_ui_regs =
+ (struct de_ui *)(de_mux_base +
+ SUNXI_DE2_MUX_CHAN_REGS +
+ SUNXI_DE2_MUX_CHAN_SZ * 1);
+ u32 size = SUNXI_DE2_WH(mode->hactive.typ, mode->vactive.typ);
+ int channel;
+ u32 format;
+
+ /* enable clock */
+#ifdef CONFIG_MACH_SUN8I_H3
+ setbits_le32(&de_clk_regs->rst_cfg, (mux == 0) ? 1 : 4);
+#else
+ setbits_le32(&de_clk_regs->rst_cfg, BIT(mux));
+#endif
+ setbits_le32(&de_clk_regs->gate_cfg, BIT(mux));
+ setbits_le32(&de_clk_regs->bus_cfg, BIT(mux));
+
+ clrbits_le32(&de_clk_regs->sel_cfg, 1);
+
+ writel(SUNXI_DE2_MUX_GLB_CTL_EN, &de_glb_regs->ctl);
+ writel(0, &de_glb_regs->status);
+ writel(1, &de_glb_regs->dbuff);
+ writel(size, &de_glb_regs->size);
+
+ for (channel = 0; channel < 4; channel++) {
+ void *ch = (void *)(de_mux_base + SUNXI_DE2_MUX_CHAN_REGS +
+ SUNXI_DE2_MUX_CHAN_SZ * channel);
+ memset(ch, 0, (channel == 0) ?
+ sizeof(struct de_vi) : sizeof(struct de_ui));
+ }
+ memset(de_bld_regs, 0, sizeof(struct de_bld));
+
+ writel(0x00000101, &de_bld_regs->fcolor_ctl);
+
+ writel(1, &de_bld_regs->route);
+
+ writel(0, &de_bld_regs->premultiply);
+ writel(0xff000000, &de_bld_regs->bkcolor);
+
+ writel(0x03010301, &de_bld_regs->bld_mode[0]);
+
+ writel(size, &de_bld_regs->output_size);
+ writel(mode->flags & DISPLAY_FLAGS_INTERLACED ? 2 : 0,
+ &de_bld_regs->out_ctl);
+ writel(0, &de_bld_regs->ck_ctl);
+
+ writel(0xff000000, &de_bld_regs->attr[0].fcolor);
+ writel(size, &de_bld_regs->attr[0].insize);
+
+ /* Disable all other units */
+ writel(0, de_mux_base + SUNXI_DE2_MUX_VSU_REGS);
+ writel(0, de_mux_base + SUNXI_DE2_MUX_GSU1_REGS);
+ writel(0, de_mux_base + SUNXI_DE2_MUX_GSU2_REGS);
+ writel(0, de_mux_base + SUNXI_DE2_MUX_GSU3_REGS);
+ writel(0, de_mux_base + SUNXI_DE2_MUX_FCE_REGS);
+ writel(0, de_mux_base + SUNXI_DE2_MUX_BWS_REGS);
+ writel(0, de_mux_base + SUNXI_DE2_MUX_LTI_REGS);
+ writel(0, de_mux_base + SUNXI_DE2_MUX_PEAK_REGS);
+ writel(0, de_mux_base + SUNXI_DE2_MUX_ASE_REGS);
+ writel(0, de_mux_base + SUNXI_DE2_MUX_FCC_REGS);
+ writel(0, de_mux_base + SUNXI_DE2_MUX_DCSC_REGS);
+
+ switch (bpp) {
+ case 16:
+ format = SUNXI_DE2_UI_CFG_ATTR_FMT(SUNXI_DE2_FORMAT_RGB_565);
+ break;
+ case 32:
+ default:
+ format = SUNXI_DE2_UI_CFG_ATTR_FMT(SUNXI_DE2_FORMAT_XRGB_8888);
+ break;
+ }
+
+ writel(SUNXI_DE2_UI_CFG_ATTR_EN | format, &de_ui_regs->cfg[0].attr);
+ writel(size, &de_ui_regs->cfg[0].size);
+ writel(0, &de_ui_regs->cfg[0].coord);
+ writel((bpp / 8) * mode->hactive.typ, &de_ui_regs->cfg[0].pitch);
+ writel(address, &de_ui_regs->cfg[0].top_laddr);
+ writel(size, &de_ui_regs->ovl_size);
+
+ /* apply settings */
+ writel(1, &de_glb_regs->dbuff);
+}
+
+static int sunxi_de2_init(struct udevice *dev, ulong fbbase,
+ enum video_log2_bpp l2bpp,
+ struct udevice *disp, int mux)
+{
+ struct video_priv *uc_priv = dev_get_uclass_priv(dev);
+ struct display_timing timing;
+ struct display_plat *disp_uc_plat;
+ int ret;
+
+ disp_uc_plat = dev_get_uclass_platdata(disp);
+ debug("Using device '%s', disp_uc_priv=%p\n", disp->name, disp_uc_plat);
+ if (display_in_use(disp)) {
+ debug(" - device in use\n");
+ return -EBUSY;
+ }
+
+ disp_uc_plat->source_id = mux;
+
+ ret = device_probe(disp);
+ if (ret) {
+ debug("%s: device '%s' display won't probe (ret=%d)\n",
+ __func__, dev->name, ret);
+ return ret;
+ }
+
+ ret = display_read_timing(disp, &timing);
+ if (ret) {
+ debug("%s: Failed to read timings\n", __func__);
+ return ret;
+ }
+
+ sunxi_de2_composer_init();
+ sunxi_de2_mode_set(mux, &timing, 1 << l2bpp, fbbase);
+
+ ret = display_enable(disp, 1 << l2bpp, &timing);
+ if (ret) {
+ debug("%s: Failed to enable display\n", __func__);
+ return ret;
+ }
+
+ uc_priv->xsize = timing.hactive.typ;
+ uc_priv->ysize = timing.vactive.typ;
+ uc_priv->bpix = l2bpp;
+ debug("fb=%lx, size=%d %d\n", fbbase, uc_priv->xsize, uc_priv->ysize);
+
+ return 0;
+}
+
+static int sunxi_de2_probe(struct udevice *dev)
+{
+ struct video_uc_platdata *plat = dev_get_uclass_platdata(dev);
+ struct udevice *disp;
+ int ret;
+ int mux;
+
+ /* Before relocation we don't need to do anything */
+ if (!(gd->flags & GD_FLG_RELOC))
+ return 0;
+
+ ret = uclass_find_device_by_name(UCLASS_DISPLAY,
+ "sunxi_dw_hdmi", &disp);
+ if (ret) {
+ debug("%s: hdmi display not found (ret=%d)\n", __func__, ret);
+ return ret;
+ }
+
+ if (IS_ENABLED(CONFIG_MACH_SUNXI_H3_H5))
+ mux = 0;
+ else
+ mux = 1;
+
+ ret = sunxi_de2_init(dev, plat->base, VIDEO_BPP16, disp, mux);
+ if (ret)
+ return ret;
+
+ video_set_flush_dcache(dev, 1);
+
+ return 0;
+}
+
+static int sunxi_de2_bind(struct udevice *dev)
+{
+ struct video_uc_platdata *plat = dev_get_uclass_platdata(dev);
+
+ plat->size = LCD_MAX_WIDTH * LCD_MAX_HEIGHT *
+ (1 << LCD_MAX_LOG2_BPP) / 8;
+
+ return 0;
+}
+
+static const struct video_ops sunxi_de2_ops = {
+};
+
+U_BOOT_DRIVER(sunxi_de2) = {
+ .name = "sunxi_de2",
+ .id = UCLASS_VIDEO,
+ .ops = &sunxi_de2_ops,
+ .bind = sunxi_de2_bind,
+ .probe = sunxi_de2_probe,
+ .flags = DM_FLAG_PRE_RELOC,
+};
+
+U_BOOT_DEVICE(sunxi_de2) = {
+ .name = "sunxi_de2"
+};
diff --git a/drivers/video/sunxi/sunxi_dw_hdmi.c b/drivers/video/sunxi/sunxi_dw_hdmi.c
new file mode 100644
index 0000000000..33920a2b67
--- /dev/null
+++ b/drivers/video/sunxi/sunxi_dw_hdmi.c
@@ -0,0 +1,389 @@
+/*
+ * Allwinner DW HDMI bridge
+ *
+ * (C) Copyright 2017 Jernej Skrabec <jernej.skrabec at siol.net>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <display.h>
+#include <dm.h>
+#include <dw_hdmi.h>
+#include <edid.h>
+#include <asm/io.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/lcdc.h>
+
+struct sunxi_dw_hdmi_priv {
+ struct dw_hdmi hdmi;
+ int mux;
+};
+
+struct sunxi_hdmi_phy {
+ u32 pol;
+ u32 res1[3];
+ u32 read_en;
+ u32 unscramble;
+ u32 res2[2];
+ u32 ctrl;
+ u32 unk1;
+ u32 unk2;
+ u32 pll;
+ u32 clk;
+ u32 unk3;
+ u32 status;
+};
+
+#define HDMI_PHY_OFFS 0x10000
+
+static int sunxi_dw_hdmi_get_divider(uint clock)
+{
+ /*
+ * Due to missing documentaion of HDMI PHY, we know correct
+ * settings only for following four PHY dividers. Select one
+ * based on clock speed.
+ */
+ if (clock <= 27000000)
+ return 11;
+ else if (clock <= 74250000)
+ return 4;
+ else if (clock <= 148500000)
+ return 2;
+ else
+ return 1;
+}
+
+static void sunxi_dw_hdmi_phy_init(void)
+{
+ struct sunxi_hdmi_phy * const phy =
+ (struct sunxi_hdmi_phy *)(SUNXI_HDMI_BASE + HDMI_PHY_OFFS);
+ unsigned long tmo;
+ u32 tmp;
+
+ /*
+ * HDMI PHY settings are taken as-is from Allwinner BSP code.
+ * There is no documentation.
+ */
+ writel(0, &phy->ctrl);
+ setbits_le32(&phy->ctrl, BIT(0));
+ udelay(5);
+ setbits_le32(&phy->ctrl, BIT(16));
+ setbits_le32(&phy->ctrl, BIT(1));
+ udelay(10);
+ setbits_le32(&phy->ctrl, BIT(2));
+ udelay(5);
+ setbits_le32(&phy->ctrl, BIT(3));
+ udelay(40);
+ setbits_le32(&phy->ctrl, BIT(19));
+ udelay(100);
+ setbits_le32(&phy->ctrl, BIT(18));
+ setbits_le32(&phy->ctrl, 7 << 4);
+
+ /* Note that Allwinner code doesn't fail in case of timeout */
+ tmo = timer_get_us() + 2000;
+ while ((readl(&phy->status) & 0x80) == 0) {
+ if (timer_get_us() > tmo) {
+ printf("Warning: HDMI PHY init timeout!\n");
+ break;
+ }
+ }
+
+ setbits_le32(&phy->ctrl, 0xf << 8);
+ setbits_le32(&phy->ctrl, BIT(7));
+
+ writel(0x39dc5040, &phy->pll);
+ writel(0x80084343, &phy->clk);
+ udelay(10000);
+ writel(1, &phy->unk3);
+ setbits_le32(&phy->pll, BIT(25));
+ udelay(100000);
+ tmp = (readl(&phy->status) & 0x1f800) >> 11;
+ setbits_le32(&phy->pll, BIT(31) | BIT(30));
+ setbits_le32(&phy->pll, tmp);
+ writel(0x01FF0F7F, &phy->ctrl);
+ writel(0x80639000, &phy->unk1);
+ writel(0x0F81C405, &phy->unk2);
+
+ /* enable read access to HDMI controller */
+ writel(0x54524545, &phy->read_en);
+ /* descramble register offsets */
+ writel(0x42494E47, &phy->unscramble);
+}
+
+static int sunxi_dw_hdmi_get_plug_in_status(void)
+{
+ struct sunxi_hdmi_phy * const phy =
+ (struct sunxi_hdmi_phy *)(SUNXI_HDMI_BASE + HDMI_PHY_OFFS);
+
+ return !!(readl(&phy->status) & (1 << 19));
+}
+
+static int sunxi_dw_hdmi_wait_for_hpd(void)
+{
+ ulong start;
+
+ start = get_timer(0);
+ do {
+ if (sunxi_dw_hdmi_get_plug_in_status())
+ return 0;
+ udelay(100);
+ } while (get_timer(start) < 300);
+
+ return -1;
+}
+
+static void sunxi_dw_hdmi_phy_set(uint clock)
+{
+ struct sunxi_hdmi_phy * const phy =
+ (struct sunxi_hdmi_phy *)(SUNXI_HDMI_BASE + HDMI_PHY_OFFS);
+ int div = sunxi_dw_hdmi_get_divider(clock);
+ u32 tmp;
+
+ /*
+ * Unfortunately, we don't know much about those magic
+ * numbers. They are taken from Allwinner BSP driver.
+ */
+ switch (div) {
+ case 1:
+ writel(0x30dc5fc0, &phy->pll);
+ writel(0x800863C0, &phy->clk);
+ mdelay(10);
+ writel(0x00000001, &phy->unk3);
+ setbits_le32(&phy->pll, BIT(25));
+ mdelay(200);
+ tmp = (readl(&phy->status) & 0x1f800) >> 11;
+ setbits_le32(&phy->pll, BIT(31) | BIT(30));
+ if (tmp < 0x3d)
+ setbits_le32(&phy->pll, tmp + 2);
+ else
+ setbits_le32(&phy->pll, 0x3f);
+ mdelay(100);
+ writel(0x01FFFF7F, &phy->ctrl);
+ writel(0x8063b000, &phy->unk1);
+ writel(0x0F8246B5, &phy->unk2);
+ break;
+ case 2:
+ writel(0x39dc5040, &phy->pll);
+ writel(0x80084381, &phy->clk);
+ mdelay(10);
+ writel(0x00000001, &phy->unk3);
+ setbits_le32(&phy->pll, BIT(25));
+ mdelay(100);
+ tmp = (readl(&phy->status) & 0x1f800) >> 11;
+ setbits_le32(&phy->pll, BIT(31) | BIT(30));
+ setbits_le32(&phy->pll, tmp);
+ writel(0x01FFFF7F, &phy->ctrl);
+ writel(0x8063a800, &phy->unk1);
+ writel(0x0F81C485, &phy->unk2);
+ break;
+ case 4:
+ writel(0x39dc5040, &phy->pll);
+ writel(0x80084343, &phy->clk);
+ mdelay(10);
+ writel(0x00000001, &phy->unk3);
+ setbits_le32(&phy->pll, BIT(25));
+ mdelay(100);
+ tmp = (readl(&phy->status) & 0x1f800) >> 11;
+ setbits_le32(&phy->pll, BIT(31) | BIT(30));
+ setbits_le32(&phy->pll, tmp);
+ writel(0x01FFFF7F, &phy->ctrl);
+ writel(0x8063b000, &phy->unk1);
+ writel(0x0F81C405, &phy->unk2);
+ break;
+ case 11:
+ writel(0x39dc5040, &phy->pll);
+ writel(0x8008430a, &phy->clk);
+ mdelay(10);
+ writel(0x00000001, &phy->unk3);
+ setbits_le32(&phy->pll, BIT(25));
+ mdelay(100);
+ tmp = (readl(&phy->status) & 0x1f800) >> 11;
+ setbits_le32(&phy->pll, BIT(31) | BIT(30));
+ setbits_le32(&phy->pll, tmp);
+ writel(0x01FFFF7F, &phy->ctrl);
+ writel(0x8063b000, &phy->unk1);
+ writel(0x0F81C405, &phy->unk2);
+ break;
+ }
+}
+
+static void sunxi_dw_hdmi_pll_set(uint clk_khz)
+{
+ int value, n, m, div = 0, diff;
+ int best_n = 0, best_m = 0, best_diff = 0x0FFFFFFF;
+
+ div = sunxi_dw_hdmi_get_divider(clk_khz * 1000);
+
+ /*
+ * Find the lowest divider resulting in a matching clock. If there
+ * is no match, pick the closest lower clock, as monitors tend to
+ * not sync to higher frequencies.
+ */
+ for (m = 1; m <= 16; m++) {
+ n = (m * div * clk_khz) / 24000;
+
+ if ((n >= 1) && (n <= 128)) {
+ value = (24000 * n) / m / div;
+ diff = clk_khz - value;
+ if (diff < best_diff) {
+ best_diff = diff;
+ best_m = m;
+ best_n = n;
+ }
+ }
+ }
+
+ clock_set_pll3_factors(best_m, best_n);
+ debug("dotclock: %dkHz = %dkHz: (24MHz * %d) / %d / %d\n",
+ clk_khz, (clock_get_pll3() / 1000) / div,
+ best_n, best_m, div);
+}
+
+static void sunxi_dw_hdmi_lcdc_init(int mux, const struct display_timing *edid,
+ int bpp)
+{
+ struct sunxi_ccm_reg * const ccm =
+ (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
+ int div = sunxi_dw_hdmi_get_divider(edid->pixelclock.typ);
+ struct sunxi_lcdc_reg *lcdc;
+
+ if (mux == 0) {
+ lcdc = (struct sunxi_lcdc_reg *)SUNXI_LCD0_BASE;
+
+ /* Reset off */
+ setbits_le32(&ccm->ahb_reset1_cfg, 1 << AHB_RESET_OFFSET_LCD0);
+
+ /* Clock on */
+ setbits_le32(&ccm->ahb_gate1, 1 << AHB_GATE_OFFSET_LCD0);
+ writel(CCM_LCD0_CTRL_GATE | CCM_LCD0_CTRL_M(div),
+ &ccm->lcd0_clk_cfg);
+ } else {
+ lcdc = (struct sunxi_lcdc_reg *)SUNXI_LCD1_BASE;
+
+ /* Reset off */
+ setbits_le32(&ccm->ahb_reset1_cfg, 1 << AHB_RESET_OFFSET_LCD1);
+
+ /* Clock on */
+ setbits_le32(&ccm->ahb_gate1, 1 << AHB_GATE_OFFSET_LCD1);
+ writel(CCM_LCD1_CTRL_GATE | CCM_LCD1_CTRL_M(div),
+ &ccm->lcd1_clk_cfg);
+ }
+
+ lcdc_init(lcdc);
+ lcdc_tcon1_mode_set(lcdc, edid, false, false);
+ lcdc_enable(lcdc, bpp);
+}
+
+static int sunxi_dw_hdmi_phy_cfg(struct dw_hdmi *hdmi, uint mpixelclock)
+{
+ sunxi_dw_hdmi_pll_set(mpixelclock/1000);
+ sunxi_dw_hdmi_phy_set(mpixelclock);
+
+ return 0;
+}
+
+static int sunxi_dw_hdmi_read_edid(struct udevice *dev, u8 *buf, int buf_size)
+{
+ struct sunxi_dw_hdmi_priv *priv = dev_get_priv(dev);
+
+ return dw_hdmi_read_edid(&priv->hdmi, buf, buf_size);
+}
+
+static int sunxi_dw_hdmi_enable(struct udevice *dev, int panel_bpp,
+ const struct display_timing *edid)
+{
+ struct sunxi_hdmi_phy * const phy =
+ (struct sunxi_hdmi_phy *)(SUNXI_HDMI_BASE + HDMI_PHY_OFFS);
+ struct sunxi_dw_hdmi_priv *priv = dev_get_priv(dev);
+ int ret;
+
+ ret = dw_hdmi_enable(&priv->hdmi, edid);
+ if (ret)
+ return ret;
+
+ sunxi_dw_hdmi_lcdc_init(priv->mux, edid, panel_bpp);
+
+ /*
+ * Condition in original code is a bit weird. This is attempt
+ * to make it more reasonable and it works. It could be that
+ * bits and conditions are related and should be separated.
+ */
+ if (!((edid->flags & DISPLAY_FLAGS_HSYNC_HIGH) &&
+ (edid->flags & DISPLAY_FLAGS_VSYNC_HIGH))) {
+ setbits_le32(&phy->pol, 0x300);
+ }
+
+ setbits_le32(&phy->ctrl, 0xf << 12);
+
+ /*
+ * This is last hdmi access before boot, so scramble addresses
+ * again or othwerwise BSP driver won't work. Dummy read is
+ * needed or otherwise last write doesn't get written correctly.
+ */
+ (void)readb(SUNXI_HDMI_BASE);
+ writel(0, &phy->unscramble);
+
+ return 0;
+}
+
+static int sunxi_dw_hdmi_probe(struct udevice *dev)
+{
+ struct display_plat *uc_plat = dev_get_uclass_platdata(dev);
+ struct sunxi_dw_hdmi_priv *priv = dev_get_priv(dev);
+ struct sunxi_ccm_reg * const ccm =
+ (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
+ int ret;
+
+ /* Set pll3 to 297 MHz */
+ clock_set_pll3(297000000);
+
+ /* 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 */
+ setbits_le32(&ccm->ahb_reset1_cfg, 1 << AHB_RESET_OFFSET_HDMI);
+ setbits_le32(&ccm->ahb_reset1_cfg, 1 << AHB_RESET_OFFSET_HDMI2);
+ setbits_le32(&ccm->ahb_gate1, 1 << AHB_GATE_OFFSET_HDMI);
+ setbits_le32(&ccm->hdmi_slow_clk_cfg, CCM_HDMI_SLOW_CTRL_DDC_GATE);
+
+ /* Clock on */
+ setbits_le32(&ccm->hdmi_clk_cfg, CCM_HDMI_CTRL_GATE);
+
+ sunxi_dw_hdmi_phy_init();
+
+ ret = sunxi_dw_hdmi_wait_for_hpd();
+ if (ret < 0) {
+ debug("hdmi can not get hpd signal\n");
+ return -1;
+ }
+
+ priv->hdmi.ioaddr = SUNXI_HDMI_BASE;
+ priv->hdmi.i2c_clk_high = 0xd8;
+ priv->hdmi.i2c_clk_low = 0xfe;
+ priv->hdmi.reg_io_width = 1;
+ priv->hdmi.phy_set = sunxi_dw_hdmi_phy_cfg;
+ priv->mux = uc_plat->source_id;
+
+ dw_hdmi_init(&priv->hdmi);
+
+ return 0;
+}
+
+static const struct dm_display_ops sunxi_dw_hdmi_ops = {
+ .read_edid = sunxi_dw_hdmi_read_edid,
+ .enable = sunxi_dw_hdmi_enable,
+};
+
+U_BOOT_DRIVER(sunxi_dw_hdmi) = {
+ .name = "sunxi_dw_hdmi",
+ .id = UCLASS_DISPLAY,
+ .ops = &sunxi_dw_hdmi_ops,
+ .probe = sunxi_dw_hdmi_probe,
+ .priv_auto_alloc_size = sizeof(struct sunxi_dw_hdmi_priv),
+};
+
+U_BOOT_DEVICE(sunxi_dw_hdmi) = {
+ .name = "sunxi_dw_hdmi"
+};
diff --git a/include/configs/sunxi-common.h b/include/configs/sunxi-common.h
index 5c9657ad13..936eda5c9b 100644
--- a/include/configs/sunxi-common.h
+++ b/include/configs/sunxi-common.h
@@ -463,6 +463,11 @@ extern int soft_i2c_gpio_scl;
#define CONSOLE_STDOUT_SETTINGS \
"stdout=serial,vga\0" \
"stderr=serial,vga\0"
+#elif CONFIG_DM_VIDEO
+#define CONFIG_SYS_WHITE_ON_BLACK
+#define CONSOLE_STDOUT_SETTINGS \
+ "stdout=serial,vidconsole\0" \
+ "stderr=serial,vidconsole\0"
#else
#define CONSOLE_STDOUT_SETTINGS \
"stdout=serial\0" \
--
2.12.0
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