This commit adds support for HDMI output.
Signed-off-by: Jernej Skrabec jernej.skrabec@siol.net Reviewed-by: Simon Glass sjg@chromium.org Acked-by: Maxime Ripard maxime.ripard@free-electrons.com --- Changes in v3: - changed to 32 bpp - add acked by tag - VIDEO_DE2 option now depends on SUNXI_DE2
Changes in v2: - add reviewed by tag
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@siol.net + * + * Based on out of tree Linux DRM driver defines: + * Copyright (C) 2016 Jean-Francois Moine moinejf@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 d9e7059a9b..52f71f568a 100644 --- a/board/sunxi/Kconfig +++ b/board/sunxi/Kconfig @@ -710,6 +710,16 @@ config SUNXI_DE2 bool default n
+config VIDEO_DE2 + bool "Display Engine 2 video driver" + depends on SUNXI_DE2 + 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..9a32c3a020 --- /dev/null +++ b/drivers/video/sunxi/sunxi_de2.c @@ -0,0 +1,258 @@ +/* + * Allwinner DE2 display driver + * + * (C) Copyright 2017 Jernej Skrabec jernej.skrabec@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_BPP32, 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@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" \