From 5e023e7eb3c4dca6ddc2d7dbd862b5e781a6fbec Mon Sep 17 00:00:00 2001 From: Jernej Skrabec Date: Mon, 27 Mar 2017 19:22:29 +0200 Subject: sunxi: video: Split out TCON code TCON unit has similar layout and functionality also on newer SoCs. This commit splits out TCON code for easier reuse later. Signed-off-by: Jernej Skrabec Acked-by: Maxime Ripard Signed-off-by: Maxime Ripard diff --git a/arch/arm/include/asm/arch-sunxi/display.h b/arch/arm/include/asm/arch-sunxi/display.h index b64f310..93803ad 100644 --- a/arch/arm/include/asm/arch-sunxi/display.h +++ b/arch/arm/include/asm/arch-sunxi/display.h @@ -157,52 +157,6 @@ struct sunxi_de_be_reg { u32 output_color_coef[12]; /* 0x9d0 */ }; -struct sunxi_lcdc_reg { - u32 ctrl; /* 0x00 */ - u32 int0; /* 0x04 */ - u32 int1; /* 0x08 */ - u8 res0[0x04]; /* 0x0c */ - u32 tcon0_frm_ctrl; /* 0x10 */ - u32 tcon0_frm_seed[6]; /* 0x14 */ - u32 tcon0_frm_table[4]; /* 0x2c */ - u8 res1[4]; /* 0x3c */ - u32 tcon0_ctrl; /* 0x40 */ - u32 tcon0_dclk; /* 0x44 */ - u32 tcon0_timing_active; /* 0x48 */ - u32 tcon0_timing_h; /* 0x4c */ - u32 tcon0_timing_v; /* 0x50 */ - u32 tcon0_timing_sync; /* 0x54 */ - u32 tcon0_hv_intf; /* 0x58 */ - u8 res2[0x04]; /* 0x5c */ - u32 tcon0_cpu_intf; /* 0x60 */ - u32 tcon0_cpu_wr_dat; /* 0x64 */ - u32 tcon0_cpu_rd_dat0; /* 0x68 */ - u32 tcon0_cpu_rd_dat1; /* 0x6c */ - u32 tcon0_ttl_timing0; /* 0x70 */ - u32 tcon0_ttl_timing1; /* 0x74 */ - u32 tcon0_ttl_timing2; /* 0x78 */ - u32 tcon0_ttl_timing3; /* 0x7c */ - u32 tcon0_ttl_timing4; /* 0x80 */ - u32 tcon0_lvds_intf; /* 0x84 */ - u32 tcon0_io_polarity; /* 0x88 */ - u32 tcon0_io_tristate; /* 0x8c */ - u32 tcon1_ctrl; /* 0x90 */ - u32 tcon1_timing_source; /* 0x94 */ - u32 tcon1_timing_scale; /* 0x98 */ - u32 tcon1_timing_out; /* 0x9c */ - u32 tcon1_timing_h; /* 0xa0 */ - u32 tcon1_timing_v; /* 0xa4 */ - u32 tcon1_timing_sync; /* 0xa8 */ - u8 res3[0x44]; /* 0xac */ - u32 tcon1_io_polarity; /* 0xf0 */ - u32 tcon1_io_tristate; /* 0xf4 */ - u8 res4[0x108]; /* 0xf8 */ - u32 mux_ctrl; /* 0x200 */ - u8 res5[0x1c]; /* 0x204 */ - u32 lvds_ana0; /* 0x220 */ - u32 lvds_ana1; /* 0x224 */ -}; - struct sunxi_hdmi_reg { u32 version_id; /* 0x000 */ u32 ctrl; /* 0x004 */ @@ -347,63 +301,6 @@ struct sunxi_tve_reg { #define SUNXI_DE_BE_OUTPUT_COLOR_CTRL_ENABLE 1 /* - * LCDC register constants. - */ -#define SUNXI_LCDC_X(x) (((x) - 1) << 16) -#define SUNXI_LCDC_Y(y) (((y) - 1) << 0) -#define SUNXI_LCDC_TCON_VSYNC_MASK (1 << 24) -#define SUNXI_LCDC_TCON_HSYNC_MASK (1 << 25) -#define SUNXI_LCDC_CTRL_IO_MAP_MASK (1 << 0) -#define SUNXI_LCDC_CTRL_IO_MAP_TCON0 (0 << 0) -#define SUNXI_LCDC_CTRL_IO_MAP_TCON1 (1 << 0) -#define SUNXI_LCDC_CTRL_TCON_ENABLE (1 << 31) -#define SUNXI_LCDC_TCON0_FRM_CTRL_RGB666 ((1 << 31) | (0 << 4)) -#define SUNXI_LCDC_TCON0_FRM_CTRL_RGB565 ((1 << 31) | (5 << 4)) -#define SUNXI_LCDC_TCON0_FRM_SEED 0x11111111 -#define SUNXI_LCDC_TCON0_FRM_TAB0 0x01010000 -#define SUNXI_LCDC_TCON0_FRM_TAB1 0x15151111 -#define SUNXI_LCDC_TCON0_FRM_TAB2 0x57575555 -#define SUNXI_LCDC_TCON0_FRM_TAB3 0x7f7f7777 -#define SUNXI_LCDC_TCON0_CTRL_CLK_DELAY(n) (((n) & 0x1f) << 4) -#define SUNXI_LCDC_TCON0_CTRL_ENABLE (1 << 31) -#define SUNXI_LCDC_TCON0_DCLK_DIV(n) ((n) << 0) -#define SUNXI_LCDC_TCON0_DCLK_ENABLE (0xf << 28) -#define SUNXI_LCDC_TCON0_TIMING_H_BP(n) (((n) - 1) << 0) -#define SUNXI_LCDC_TCON0_TIMING_H_TOTAL(n) (((n) - 1) << 16) -#define SUNXI_LCDC_TCON0_TIMING_V_BP(n) (((n) - 1) << 0) -#define SUNXI_LCDC_TCON0_TIMING_V_TOTAL(n) (((n) * 2) << 16) -#ifdef CONFIG_SUNXI_GEN_SUN6I -#define SUNXI_LCDC_TCON0_LVDS_CLK_SEL_TCON0 (1 << 20) -#else -#define SUNXI_LCDC_TCON0_LVDS_CLK_SEL_TCON0 0 /* NA */ -#endif -#define SUNXI_LCDC_TCON0_LVDS_INTF_BITWIDTH(n) ((n) << 26) -#define SUNXI_LCDC_TCON0_LVDS_INTF_ENABLE (1 << 31) -#define SUNXI_LCDC_TCON0_IO_POL_DCLK_PHASE(x) ((x) << 28) -#define SUNXI_LCDC_TCON1_CTRL_CLK_DELAY(n) (((n) & 0x1f) << 4) -#define SUNXI_LCDC_TCON1_CTRL_INTERLACE_ENABLE (1 << 20) -#define SUNXI_LCDC_TCON1_CTRL_ENABLE (1 << 31) -#define SUNXI_LCDC_TCON1_TIMING_H_BP(n) (((n) - 1) << 0) -#define SUNXI_LCDC_TCON1_TIMING_H_TOTAL(n) (((n) - 1) << 16) -#define SUNXI_LCDC_TCON1_TIMING_V_BP(n) (((n) - 1) << 0) -#define SUNXI_LCDC_TCON1_TIMING_V_TOTAL(n) ((n) << 16) -#define SUNXI_LCDC_MUX_CTRL_SRC0_MASK (0xf << 0) -#define SUNXI_LCDC_MUX_CTRL_SRC0(x) ((x) << 0) -#define SUNXI_LCDC_MUX_CTRL_SRC1_MASK (0xf << 4) -#define SUNXI_LCDC_MUX_CTRL_SRC1(x) ((x) << 4) -#ifdef CONFIG_SUNXI_GEN_SUN6I -#define SUNXI_LCDC_LVDS_ANA0 0x40040320 -#define SUNXI_LCDC_LVDS_ANA0_EN_MB (1 << 31) -#define SUNXI_LCDC_LVDS_ANA0_DRVC (1 << 24) -#define SUNXI_LCDC_LVDS_ANA0_DRVD(x) ((x) << 20) -#else -#define SUNXI_LCDC_LVDS_ANA0 0x3f310000 -#define SUNXI_LCDC_LVDS_ANA0_UPDATE (1 << 22) -#endif -#define SUNXI_LCDC_LVDS_ANA1_INIT1 (0x1f << 26 | 0x1f << 10) -#define SUNXI_LCDC_LVDS_ANA1_INIT2 (0x1f << 16 | 0x1f << 00) - -/* * HDMI register constants. */ #define SUNXI_HDMI_X(x) (((x) - 1) << 0) diff --git a/arch/arm/include/asm/arch-sunxi/lcdc.h b/arch/arm/include/asm/arch-sunxi/lcdc.h new file mode 100644 index 0000000..e4c8c16 --- /dev/null +++ b/arch/arm/include/asm/arch-sunxi/lcdc.h @@ -0,0 +1,128 @@ +/* + * Sunxi platform timing controller register and constant defines + * + * (C) Copyright 2014 Hans de Goede + * (C) Copyright 2017 Jernej Skrabec + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _LCDC_H +#define _LCDC_H + +struct ctfb_res_modes; + +struct sunxi_lcdc_reg { + u32 ctrl; /* 0x00 */ + u32 int0; /* 0x04 */ + u32 int1; /* 0x08 */ + u8 res0[0x04]; /* 0x0c */ + u32 tcon0_frm_ctrl; /* 0x10 */ + u32 tcon0_frm_seed[6]; /* 0x14 */ + u32 tcon0_frm_table[4]; /* 0x2c */ + u8 res1[4]; /* 0x3c */ + u32 tcon0_ctrl; /* 0x40 */ + u32 tcon0_dclk; /* 0x44 */ + u32 tcon0_timing_active; /* 0x48 */ + u32 tcon0_timing_h; /* 0x4c */ + u32 tcon0_timing_v; /* 0x50 */ + u32 tcon0_timing_sync; /* 0x54 */ + u32 tcon0_hv_intf; /* 0x58 */ + u8 res2[0x04]; /* 0x5c */ + u32 tcon0_cpu_intf; /* 0x60 */ + u32 tcon0_cpu_wr_dat; /* 0x64 */ + u32 tcon0_cpu_rd_dat0; /* 0x68 */ + u32 tcon0_cpu_rd_dat1; /* 0x6c */ + u32 tcon0_ttl_timing0; /* 0x70 */ + u32 tcon0_ttl_timing1; /* 0x74 */ + u32 tcon0_ttl_timing2; /* 0x78 */ + u32 tcon0_ttl_timing3; /* 0x7c */ + u32 tcon0_ttl_timing4; /* 0x80 */ + u32 tcon0_lvds_intf; /* 0x84 */ + u32 tcon0_io_polarity; /* 0x88 */ + u32 tcon0_io_tristate; /* 0x8c */ + u32 tcon1_ctrl; /* 0x90 */ + u32 tcon1_timing_source; /* 0x94 */ + u32 tcon1_timing_scale; /* 0x98 */ + u32 tcon1_timing_out; /* 0x9c */ + u32 tcon1_timing_h; /* 0xa0 */ + u32 tcon1_timing_v; /* 0xa4 */ + u32 tcon1_timing_sync; /* 0xa8 */ + u8 res3[0x44]; /* 0xac */ + u32 tcon1_io_polarity; /* 0xf0 */ + u32 tcon1_io_tristate; /* 0xf4 */ + u8 res4[0x108]; /* 0xf8 */ + u32 mux_ctrl; /* 0x200 */ + u8 res5[0x1c]; /* 0x204 */ + u32 lvds_ana0; /* 0x220 */ + u32 lvds_ana1; /* 0x224 */ +}; + +/* + * LCDC register constants. + */ +#define SUNXI_LCDC_X(x) (((x) - 1) << 16) +#define SUNXI_LCDC_Y(y) (((y) - 1) << 0) +#define SUNXI_LCDC_TCON_VSYNC_MASK (1 << 24) +#define SUNXI_LCDC_TCON_HSYNC_MASK (1 << 25) +#define SUNXI_LCDC_CTRL_IO_MAP_MASK (1 << 0) +#define SUNXI_LCDC_CTRL_IO_MAP_TCON0 (0 << 0) +#define SUNXI_LCDC_CTRL_IO_MAP_TCON1 (1 << 0) +#define SUNXI_LCDC_CTRL_TCON_ENABLE (1 << 31) +#define SUNXI_LCDC_TCON0_FRM_CTRL_RGB666 ((1 << 31) | (0 << 4)) +#define SUNXI_LCDC_TCON0_FRM_CTRL_RGB565 ((1 << 31) | (5 << 4)) +#define SUNXI_LCDC_TCON0_FRM_SEED 0x11111111 +#define SUNXI_LCDC_TCON0_FRM_TAB0 0x01010000 +#define SUNXI_LCDC_TCON0_FRM_TAB1 0x15151111 +#define SUNXI_LCDC_TCON0_FRM_TAB2 0x57575555 +#define SUNXI_LCDC_TCON0_FRM_TAB3 0x7f7f7777 +#define SUNXI_LCDC_TCON0_CTRL_CLK_DELAY(n) (((n) & 0x1f) << 4) +#define SUNXI_LCDC_TCON0_CTRL_ENABLE (1 << 31) +#define SUNXI_LCDC_TCON0_DCLK_DIV(n) ((n) << 0) +#define SUNXI_LCDC_TCON0_DCLK_ENABLE (0xf << 28) +#define SUNXI_LCDC_TCON0_TIMING_H_BP(n) (((n) - 1) << 0) +#define SUNXI_LCDC_TCON0_TIMING_H_TOTAL(n) (((n) - 1) << 16) +#define SUNXI_LCDC_TCON0_TIMING_V_BP(n) (((n) - 1) << 0) +#define SUNXI_LCDC_TCON0_TIMING_V_TOTAL(n) (((n) * 2) << 16) +#ifdef CONFIG_SUNXI_GEN_SUN6I +#define SUNXI_LCDC_TCON0_LVDS_CLK_SEL_TCON0 (1 << 20) +#else +#define SUNXI_LCDC_TCON0_LVDS_CLK_SEL_TCON0 0 /* NA */ +#endif +#define SUNXI_LCDC_TCON0_LVDS_INTF_BITWIDTH(n) ((n) << 26) +#define SUNXI_LCDC_TCON0_LVDS_INTF_ENABLE (1 << 31) +#define SUNXI_LCDC_TCON0_IO_POL_DCLK_PHASE(x) ((x) << 28) +#define SUNXI_LCDC_TCON1_CTRL_CLK_DELAY(n) (((n) & 0x1f) << 4) +#define SUNXI_LCDC_TCON1_CTRL_INTERLACE_ENABLE (1 << 20) +#define SUNXI_LCDC_TCON1_CTRL_ENABLE (1 << 31) +#define SUNXI_LCDC_TCON1_TIMING_H_BP(n) (((n) - 1) << 0) +#define SUNXI_LCDC_TCON1_TIMING_H_TOTAL(n) (((n) - 1) << 16) +#define SUNXI_LCDC_TCON1_TIMING_V_BP(n) (((n) - 1) << 0) +#define SUNXI_LCDC_TCON1_TIMING_V_TOTAL(n) ((n) << 16) +#define SUNXI_LCDC_MUX_CTRL_SRC0_MASK (0xf << 0) +#define SUNXI_LCDC_MUX_CTRL_SRC0(x) ((x) << 0) +#define SUNXI_LCDC_MUX_CTRL_SRC1_MASK (0xf << 4) +#define SUNXI_LCDC_MUX_CTRL_SRC1(x) ((x) << 4) +#ifdef CONFIG_SUNXI_GEN_SUN6I +#define SUNXI_LCDC_LVDS_ANA0 0x40040320 +#define SUNXI_LCDC_LVDS_ANA0_EN_MB (1 << 31) +#define SUNXI_LCDC_LVDS_ANA0_DRVC (1 << 24) +#define SUNXI_LCDC_LVDS_ANA0_DRVD(x) ((x) << 20) +#else +#define SUNXI_LCDC_LVDS_ANA0 0x3f310000 +#define SUNXI_LCDC_LVDS_ANA0_UPDATE (1 << 22) +#endif +#define SUNXI_LCDC_LVDS_ANA1_INIT1 (0x1f << 26 | 0x1f << 10) +#define SUNXI_LCDC_LVDS_ANA1_INIT2 (0x1f << 16 | 0x1f << 00) + +void lcdc_init(struct sunxi_lcdc_reg * const lcdc); +void lcdc_enable(struct sunxi_lcdc_reg * const lcdc, int depth); +void lcdc_tcon0_mode_set(struct sunxi_lcdc_reg * const lcdc, + const struct ctfb_res_modes *mode, + int clk_div, bool for_ext_vga_dac, + int depth, int dclk_phase); +void lcdc_tcon1_mode_set(struct sunxi_lcdc_reg * const lcdc, + const struct ctfb_res_modes *mode, + bool ext_hvsync, bool is_composite); + +#endif /* _LCDC_H */ diff --git a/drivers/video/Makefile b/drivers/video/Makefile index 7cd6d28..a80af31 100644 --- a/drivers/video/Makefile +++ b/drivers/video/Makefile @@ -51,7 +51,6 @@ obj-$(CONFIG_VIDEO_MXS) += mxsfb.o videomodes.o obj-$(CONFIG_VIDEO_OMAP3) += omap3_dss.o obj-$(CONFIG_VIDEO_SANDBOX_SDL) += sandbox_sdl.o obj-$(CONFIG_VIDEO_SM501) += sm501.o -obj-$(CONFIG_VIDEO_SUNXI) += sunxi_display.o videomodes.o obj-$(CONFIG_VIDEO_TEGRA20) += tegra.o obj-$(CONFIG_VIDEO_VCXK) += bus_vcxk.o obj-$(CONFIG_VIDEO_VESA) += vesa.o @@ -64,3 +63,4 @@ obj-${CONFIG_EXYNOS_FB} += exynos/ obj-${CONFIG_VIDEO_ROCKCHIP} += rockchip/ obj-y += bridge/ +obj-y += sunxi/ diff --git a/drivers/video/sunxi/Makefile b/drivers/video/sunxi/Makefile new file mode 100644 index 0000000..dfc9b47 --- /dev/null +++ b/drivers/video/sunxi/Makefile @@ -0,0 +1,8 @@ +# +# (C) Copyright 2000-2007 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# SPDX-License-Identifier: GPL-2.0+ +# + +obj-$(CONFIG_VIDEO_SUNXI) += sunxi_display.o lcdc.o ../videomodes.o diff --git a/drivers/video/sunxi/lcdc.c b/drivers/video/sunxi/lcdc.c new file mode 100644 index 0000000..caf1859 --- /dev/null +++ b/drivers/video/sunxi/lcdc.c @@ -0,0 +1,207 @@ +/* + * Timing controller driver for Allwinner SoCs. + * + * (C) Copyright 2013-2014 Luc Verhaegen + * (C) Copyright 2014-2015 Hans de Goede + * (C) Copyright 2017 Jernej Skrabec + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include + +#include +#include + +#include "../videomodes.h" + +static int lcdc_get_clk_delay(const struct ctfb_res_modes *mode, int tcon) +{ + int delay; + + delay = mode->lower_margin + mode->vsync_len + + mode->upper_margin; + if (mode->vmode == FB_VMODE_INTERLACED) + delay /= 2; + if (tcon == 1) + delay -= 2; + + return (delay > 30) ? 30 : delay; +} + +void lcdc_init(struct sunxi_lcdc_reg * const lcdc) +{ + /* Init lcdc */ + writel(0, &lcdc->ctrl); /* Disable tcon */ + writel(0, &lcdc->int0); /* Disable all interrupts */ + + /* Disable tcon0 dot clock */ + clrbits_le32(&lcdc->tcon0_dclk, SUNXI_LCDC_TCON0_DCLK_ENABLE); + + /* Set all io lines to tristate */ + writel(0xffffffff, &lcdc->tcon0_io_tristate); + writel(0xffffffff, &lcdc->tcon1_io_tristate); +} + +void lcdc_enable(struct sunxi_lcdc_reg * const lcdc, int depth) +{ + setbits_le32(&lcdc->ctrl, SUNXI_LCDC_CTRL_TCON_ENABLE); +#ifdef CONFIG_VIDEO_LCD_IF_LVDS + setbits_le32(&lcdc->tcon0_lvds_intf, SUNXI_LCDC_TCON0_LVDS_INTF_ENABLE); + setbits_le32(&lcdc->lvds_ana0, SUNXI_LCDC_LVDS_ANA0); +#ifdef CONFIG_SUNXI_GEN_SUN6I + udelay(2); /* delay at least 1200 ns */ + setbits_le32(&lcdc->lvds_ana0, SUNXI_LCDC_LVDS_ANA0_EN_MB); + udelay(2); /* delay at least 1200 ns */ + setbits_le32(&lcdc->lvds_ana0, SUNXI_LCDC_LVDS_ANA0_DRVC); + if (depth == 18) + setbits_le32(&lcdc->lvds_ana0, SUNXI_LCDC_LVDS_ANA0_DRVD(0x7)); + else + setbits_le32(&lcdc->lvds_ana0, SUNXI_LCDC_LVDS_ANA0_DRVD(0xf)); +#else + setbits_le32(&lcdc->lvds_ana0, SUNXI_LCDC_LVDS_ANA0_UPDATE); + udelay(2); /* delay at least 1200 ns */ + setbits_le32(&lcdc->lvds_ana1, SUNXI_LCDC_LVDS_ANA1_INIT1); + udelay(1); /* delay at least 120 ns */ + setbits_le32(&lcdc->lvds_ana1, SUNXI_LCDC_LVDS_ANA1_INIT2); + setbits_le32(&lcdc->lvds_ana0, SUNXI_LCDC_LVDS_ANA0_UPDATE); +#endif +#endif +} + +void lcdc_tcon0_mode_set(struct sunxi_lcdc_reg * const lcdc, + const struct ctfb_res_modes *mode, + int clk_div, bool for_ext_vga_dac, + int depth, int dclk_phase) +{ + int bp, clk_delay, total, val; + + /* Use tcon0 */ + clrsetbits_le32(&lcdc->ctrl, SUNXI_LCDC_CTRL_IO_MAP_MASK, + SUNXI_LCDC_CTRL_IO_MAP_TCON0); + + clk_delay = lcdc_get_clk_delay(mode, 0); + writel(SUNXI_LCDC_TCON0_CTRL_ENABLE | + SUNXI_LCDC_TCON0_CTRL_CLK_DELAY(clk_delay), &lcdc->tcon0_ctrl); + + writel(SUNXI_LCDC_TCON0_DCLK_ENABLE | + SUNXI_LCDC_TCON0_DCLK_DIV(clk_div), &lcdc->tcon0_dclk); + + writel(SUNXI_LCDC_X(mode->xres) | + SUNXI_LCDC_Y(mode->yres), &lcdc->tcon0_timing_active); + + bp = mode->hsync_len + mode->left_margin; + total = mode->xres + mode->right_margin + bp; + writel(SUNXI_LCDC_TCON0_TIMING_H_TOTAL(total) | + SUNXI_LCDC_TCON0_TIMING_H_BP(bp), &lcdc->tcon0_timing_h); + + bp = mode->vsync_len + mode->upper_margin; + total = mode->yres + mode->lower_margin + bp; + writel(SUNXI_LCDC_TCON0_TIMING_V_TOTAL(total) | + SUNXI_LCDC_TCON0_TIMING_V_BP(bp), &lcdc->tcon0_timing_v); + +#ifdef CONFIG_VIDEO_LCD_IF_PARALLEL + writel(SUNXI_LCDC_X(mode->hsync_len) | + SUNXI_LCDC_Y(mode->vsync_len), &lcdc->tcon0_timing_sync); + + writel(0, &lcdc->tcon0_hv_intf); + writel(0, &lcdc->tcon0_cpu_intf); +#endif +#ifdef CONFIG_VIDEO_LCD_IF_LVDS + val = (depth == 18) ? 1 : 0; + writel(SUNXI_LCDC_TCON0_LVDS_INTF_BITWIDTH(val) | + SUNXI_LCDC_TCON0_LVDS_CLK_SEL_TCON0, &lcdc->tcon0_lvds_intf); +#endif + + if (depth == 18 || depth == 16) { + writel(SUNXI_LCDC_TCON0_FRM_SEED, &lcdc->tcon0_frm_seed[0]); + writel(SUNXI_LCDC_TCON0_FRM_SEED, &lcdc->tcon0_frm_seed[1]); + writel(SUNXI_LCDC_TCON0_FRM_SEED, &lcdc->tcon0_frm_seed[2]); + writel(SUNXI_LCDC_TCON0_FRM_SEED, &lcdc->tcon0_frm_seed[3]); + writel(SUNXI_LCDC_TCON0_FRM_SEED, &lcdc->tcon0_frm_seed[4]); + writel(SUNXI_LCDC_TCON0_FRM_SEED, &lcdc->tcon0_frm_seed[5]); + writel(SUNXI_LCDC_TCON0_FRM_TAB0, &lcdc->tcon0_frm_table[0]); + writel(SUNXI_LCDC_TCON0_FRM_TAB1, &lcdc->tcon0_frm_table[1]); + writel(SUNXI_LCDC_TCON0_FRM_TAB2, &lcdc->tcon0_frm_table[2]); + writel(SUNXI_LCDC_TCON0_FRM_TAB3, &lcdc->tcon0_frm_table[3]); + writel(((depth == 18) ? + SUNXI_LCDC_TCON0_FRM_CTRL_RGB666 : + SUNXI_LCDC_TCON0_FRM_CTRL_RGB565), + &lcdc->tcon0_frm_ctrl); + } + + val = SUNXI_LCDC_TCON0_IO_POL_DCLK_PHASE(dclk_phase); + if (!(mode->sync & FB_SYNC_HOR_HIGH_ACT)) + val |= SUNXI_LCDC_TCON_HSYNC_MASK; + if (!(mode->sync & FB_SYNC_VERT_HIGH_ACT)) + val |= SUNXI_LCDC_TCON_VSYNC_MASK; + +#ifdef CONFIG_VIDEO_VGA_VIA_LCD_FORCE_SYNC_ACTIVE_HIGH + if (for_ext_vga_dac) + val = 0; +#endif + writel(val, &lcdc->tcon0_io_polarity); + + writel(0, &lcdc->tcon0_io_tristate); +} + +void lcdc_tcon1_mode_set(struct sunxi_lcdc_reg * const lcdc, + const struct ctfb_res_modes *mode, + bool ext_hvsync, bool is_composite) +{ + int bp, clk_delay, total, val, yres; + + /* Use tcon1 */ + clrsetbits_le32(&lcdc->ctrl, SUNXI_LCDC_CTRL_IO_MAP_MASK, + SUNXI_LCDC_CTRL_IO_MAP_TCON1); + + clk_delay = lcdc_get_clk_delay(mode, 1); + writel(SUNXI_LCDC_TCON1_CTRL_ENABLE | + ((mode->vmode == FB_VMODE_INTERLACED) ? + SUNXI_LCDC_TCON1_CTRL_INTERLACE_ENABLE : 0) | + SUNXI_LCDC_TCON1_CTRL_CLK_DELAY(clk_delay), &lcdc->tcon1_ctrl); + + yres = mode->yres; + if (mode->vmode == FB_VMODE_INTERLACED) + yres /= 2; + writel(SUNXI_LCDC_X(mode->xres) | SUNXI_LCDC_Y(yres), + &lcdc->tcon1_timing_source); + writel(SUNXI_LCDC_X(mode->xres) | SUNXI_LCDC_Y(yres), + &lcdc->tcon1_timing_scale); + writel(SUNXI_LCDC_X(mode->xres) | SUNXI_LCDC_Y(yres), + &lcdc->tcon1_timing_out); + + bp = mode->hsync_len + mode->left_margin; + total = mode->xres + mode->right_margin + bp; + writel(SUNXI_LCDC_TCON1_TIMING_H_TOTAL(total) | + SUNXI_LCDC_TCON1_TIMING_H_BP(bp), &lcdc->tcon1_timing_h); + + bp = mode->vsync_len + mode->upper_margin; + total = mode->yres + mode->lower_margin + bp; + if (mode->vmode == FB_VMODE_NONINTERLACED) + total *= 2; + writel(SUNXI_LCDC_TCON1_TIMING_V_TOTAL(total) | + SUNXI_LCDC_TCON1_TIMING_V_BP(bp), &lcdc->tcon1_timing_v); + + writel(SUNXI_LCDC_X(mode->hsync_len) | + SUNXI_LCDC_Y(mode->vsync_len), &lcdc->tcon1_timing_sync); + + if (ext_hvsync) { + val = 0; + if (mode->sync & FB_SYNC_HOR_HIGH_ACT) + val |= SUNXI_LCDC_TCON_HSYNC_MASK; + if (mode->sync & FB_SYNC_VERT_HIGH_ACT) + val |= SUNXI_LCDC_TCON_VSYNC_MASK; + writel(val, &lcdc->tcon1_io_polarity); + + clrbits_le32(&lcdc->tcon1_io_tristate, + SUNXI_LCDC_TCON_VSYNC_MASK | + SUNXI_LCDC_TCON_HSYNC_MASK); + } + +#ifdef CONFIG_MACH_SUN5I + if (is_composite) + clrsetbits_le32(&lcdc->mux_ctrl, SUNXI_LCDC_MUX_CTRL_SRC0_MASK, + SUNXI_LCDC_MUX_CTRL_SRC0(1)); +#endif +} diff --git a/drivers/video/sunxi/sunxi_display.c b/drivers/video/sunxi/sunxi_display.c new file mode 100644 index 0000000..48192ef --- /dev/null +++ b/drivers/video/sunxi/sunxi_display.c @@ -0,0 +1,1436 @@ +/* + * Display driver for Allwinner SoCs. + * + * (C) Copyright 2013-2014 Luc Verhaegen + * (C) Copyright 2014-2015 Hans de Goede + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "../videomodes.h" +#include "../anx9804.h" +#include "../hitachi_tx18d42vm_lcd.h" +#include "../ssd2828.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; + +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 { + GraphicDevice graphic_device; + enum sunxi_monitor monitor; + unsigned int depth; + unsigned int fb_addr; + unsigned int fb_size; +} sunxi_display; + +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); + + 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 ctfb_res_modes *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; + + /* SUNXI_HDMI_CTRL_ENABLE & PAD_CTRL0 are already set by hpd_detect */ + 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); + + /* 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) { + 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(void) +{ + switch (sunxi_display.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 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) +{ + 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()) { + 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); +} + +/* + * LCDC, what allwinner calls a CRTC, so timing controller and serializer. + */ +static void sunxi_lcdc_pll_set(int tcon, int dotclock, + int *clk_div, int *clk_double) +{ + struct sunxi_ccm_reg * const ccm = + (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; + int value, n, m, min_m, max_m, diff; + int best_n = 0, best_m = 0, best_diff = 0x0FFFFFFF; + int best_double = 0; + bool use_mipi_pll = false; + + if (tcon == 0) { +#ifdef CONFIG_VIDEO_LCD_IF_PARALLEL + min_m = 6; + max_m = 127; +#endif +#ifdef CONFIG_VIDEO_LCD_IF_LVDS + min_m = max_m = 7; +#endif + } else { + min_m = 1; + max_m = 15; + } + + /* + * 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 = min_m; m <= max_m; m++) { + n = (m * dotclock) / 3000; + + if ((n >= 9) && (n <= 127)) { + value = (3000 * n) / m; + diff = dotclock - value; + if (diff < best_diff) { + best_diff = diff; + best_m = m; + best_n = n; + best_double = 0; + } + } + + /* These are just duplicates */ + if (!(m & 1)) + continue; + + n = (m * dotclock) / 6000; + if ((n >= 9) && (n <= 127)) { + value = (6000 * n) / m; + diff = dotclock - value; + if (diff < best_diff) { + best_diff = diff; + best_m = m; + best_n = n; + best_double = 1; + } + } + } + +#ifdef CONFIG_MACH_SUN6I + /* + * Use the MIPI pll if we've been unable to find any matching setting + * for PLL3, this happens with high dotclocks because of min_m = 6. + */ + if (tcon == 0 && best_n == 0) { + use_mipi_pll = true; + best_m = 6; /* Minimum m for tcon0 */ + } + + if (use_mipi_pll) { + clock_set_pll3(297000000); /* Fix the video pll at 297 MHz */ + clock_set_mipi_pll(best_m * dotclock * 1000); + debug("dotclock: %dkHz = %dkHz via mipi pll\n", + dotclock, clock_get_mipi_pll() / best_m / 1000); + } else +#endif + { + clock_set_pll3(best_n * 3000000); + debug("dotclock: %dkHz = %dkHz: (%d * 3MHz * %d) / %d\n", + dotclock, + (best_double + 1) * clock_get_pll3() / best_m / 1000, + best_double + 1, best_n, best_m); + } + + if (tcon == 0) { + u32 pll; + + if (use_mipi_pll) + pll = CCM_LCD_CH0_CTRL_MIPI_PLL; + else if (best_double) + pll = CCM_LCD_CH0_CTRL_PLL3_2X; + else + pll = CCM_LCD_CH0_CTRL_PLL3; + + writel(CCM_LCD_CH0_CTRL_GATE | CCM_LCD_CH0_CTRL_RST | pll, + &ccm->lcd0_ch0_clk_cfg); + } else { + writel(CCM_LCD_CH1_CTRL_GATE | + (best_double ? CCM_LCD_CH1_CTRL_PLL3_2X : + CCM_LCD_CH1_CTRL_PLL3) | + CCM_LCD_CH1_CTRL_M(best_m), &ccm->lcd0_ch1_clk_cfg); + if (sunxi_is_composite()) + setbits_le32(&ccm->lcd0_ch1_clk_cfg, + CCM_LCD_CH1_CTRL_HALF_SCLK1); + } + + *clk_div = best_m; + *clk_double = best_double; +} + +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(const struct ctfb_res_modes *mode, + bool for_ext_vga_dac) +{ + struct sunxi_lcdc_reg * const lcdc = + (struct sunxi_lcdc_reg *)SUNXI_LCD0_BASE; + int clk_div, clk_double, pin; + +#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 + } + + sunxi_lcdc_pll_set(0, mode->pixclock_khz, &clk_div, &clk_double); + + lcdc_tcon0_mode_set(lcdc, mode, 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) +{ + struct sunxi_lcdc_reg * const lcdc = + (struct sunxi_lcdc_reg *)SUNXI_LCD0_BASE; + + lcdc_tcon1_mode_set(lcdc, mode, use_portd_hvsync, + sunxi_is_composite()); + + if (use_portd_hvsync) { + sunxi_gpio_set_cfgpin(SUNXI_GPD(26), SUNXI_GPD_LCD0); + sunxi_gpio_set_cfgpin(SUNXI_GPD(27), SUNXI_GPD_LCD0); + } + + sunxi_lcdc_pll_set(1, mode->pixclock_khz, clk_div, clk_double); +} +#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) +{ + 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 (sunxi_display.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(void) +{ + 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 (sunxi_display.monitor) { + case sunxi_monitor_vga: + writel(SUNXI_TVE_GCTRL_DAC_INPUT(0, 1) | + SUNXI_TVE_GCTRL_DAC_INPUT(1, 2) | + SUNXI_TVE_GCTRL_DAC_INPUT(2, 3), &tve->gctrl); + writel(SUNXI_TVE_CFG0_VGA, &tve->cfg0); + writel(SUNXI_TVE_DAC_CFG0_VGA, &tve->dac_cfg0); + writel(SUNXI_TVE_UNKNOWN1_VGA, &tve->unknown1); + break; + case sunxi_monitor_composite_pal_nc: + writel(SUNXI_TVE_CHROMA_FREQ_PAL_NC, &tve->chroma_freq); + /* Fall through */ + case sunxi_monitor_composite_pal: + writel(SUNXI_TVE_GCTRL_DAC_INPUT(0, 1) | + SUNXI_TVE_GCTRL_DAC_INPUT(1, 2) | + SUNXI_TVE_GCTRL_DAC_INPUT(2, 3) | + SUNXI_TVE_GCTRL_DAC_INPUT(3, 4), &tve->gctrl); + writel(SUNXI_TVE_CFG0_PAL, &tve->cfg0); + writel(SUNXI_TVE_DAC_CFG0_COMPOSITE, &tve->dac_cfg0); + writel(SUNXI_TVE_FILTER_COMPOSITE, &tve->filter); + writel(SUNXI_TVE_PORCH_NUM_PAL, &tve->porch_num); + writel(SUNXI_TVE_LINE_NUM_PAL, &tve->line_num); + writel(SUNXI_TVE_BLANK_BLACK_LEVEL_PAL, &tve->blank_black_level); + writel(SUNXI_TVE_UNKNOWN1_COMPOSITE, &tve->unknown1); + writel(SUNXI_TVE_CBR_LEVEL_PAL, &tve->cbr_level); + writel(SUNXI_TVE_BURST_WIDTH_COMPOSITE, &tve->burst_width); + writel(SUNXI_TVE_UNKNOWN2_PAL, &tve->unknown2); + writel(SUNXI_TVE_ACTIVE_NUM_COMPOSITE, &tve->active_num); + writel(SUNXI_TVE_CHROMA_BW_GAIN_COMP, &tve->chroma_bw_gain); + writel(SUNXI_TVE_NOTCH_WIDTH_COMPOSITE, &tve->notch_width); + writel(SUNXI_TVE_RESYNC_NUM_PAL, &tve->resync_num); + writel(SUNXI_TVE_SLAVE_PARA_COMPOSITE, &tve->slave_para); + break; + case sunxi_monitor_composite_pal_m: + writel(SUNXI_TVE_CHROMA_FREQ_PAL_M, &tve->chroma_freq); + writel(SUNXI_TVE_COLOR_BURST_PAL_M, &tve->color_burst); + /* Fall through */ + case sunxi_monitor_composite_ntsc: + writel(SUNXI_TVE_GCTRL_DAC_INPUT(0, 1) | + SUNXI_TVE_GCTRL_DAC_INPUT(1, 2) | + SUNXI_TVE_GCTRL_DAC_INPUT(2, 3) | + SUNXI_TVE_GCTRL_DAC_INPUT(3, 4), &tve->gctrl); + writel(SUNXI_TVE_CFG0_NTSC, &tve->cfg0); + writel(SUNXI_TVE_DAC_CFG0_COMPOSITE, &tve->dac_cfg0); + writel(SUNXI_TVE_FILTER_COMPOSITE, &tve->filter); + writel(SUNXI_TVE_PORCH_NUM_NTSC, &tve->porch_num); + writel(SUNXI_TVE_LINE_NUM_NTSC, &tve->line_num); + writel(SUNXI_TVE_BLANK_BLACK_LEVEL_NTSC, &tve->blank_black_level); + writel(SUNXI_TVE_UNKNOWN1_COMPOSITE, &tve->unknown1); + writel(SUNXI_TVE_CBR_LEVEL_NTSC, &tve->cbr_level); + writel(SUNXI_TVE_BURST_PHASE_NTSC, &tve->burst_phase); + writel(SUNXI_TVE_BURST_WIDTH_COMPOSITE, &tve->burst_width); + writel(SUNXI_TVE_UNKNOWN2_NTSC, &tve->unknown2); + writel(SUNXI_TVE_SYNC_VBI_LEVEL_NTSC, &tve->sync_vbi_level); + writel(SUNXI_TVE_ACTIVE_NUM_COMPOSITE, &tve->active_num); + writel(SUNXI_TVE_CHROMA_BW_GAIN_COMP, &tve->chroma_bw_gain); + writel(SUNXI_TVE_NOTCH_WIDTH_COMPOSITE, &tve->notch_width); + writel(SUNXI_TVE_RESYNC_NUM_NTSC, &tve->resync_num); + writel(SUNXI_TVE_SLAVE_PARA_COMPOSITE, &tve->slave_para); + break; + case sunxi_monitor_none: + case sunxi_monitor_dvi: + case sunxi_monitor_hdmi: + case sunxi_monitor_lcd: + break; + } +} + +static void sunxi_tvencoder_enable(void) +{ + struct sunxi_tve_reg * const tve = + (struct sunxi_tve_reg *)SUNXI_TVE0_BASE; + + setbits_le32(&tve->gctrl, SUNXI_TVE_GCTRL_ENABLE); +} + +#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(const struct ctfb_res_modes *mode, + unsigned int address) +{ + int __maybe_unused clk_div, clk_double; + struct sunxi_lcdc_reg * const lcdc = + (struct sunxi_lcdc_reg *)SUNXI_LCD0_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); + sunxi_lcdc_tcon1_mode_set(mode, &clk_div, &clk_double, 0); + sunxi_hdmi_mode_set(mode, clk_div, clk_double); + 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); + sunxi_lcdc_tcon0_mode_set(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); + sunxi_lcdc_tcon1_mode_set(mode, &clk_div, &clk_double, 1); + sunxi_tvencoder_mode_set(); + sunxi_composer_enable(); + lcdc_enable(lcdc, sunxi_display.depth); + sunxi_tvencoder_enable(); +#elif defined CONFIG_VIDEO_VGA_VIA_LCD + sunxi_composer_mode_set(mode, address); + sunxi_lcdc_tcon0_mode_set(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); + sunxi_lcdc_tcon1_mode_set(mode, &clk_div, &clk_double, 0); + sunxi_tvencoder_mode_set(); + sunxi_composer_enable(); + lcdc_enable(lcdc, sunxi_display.depth); + sunxi_tvencoder_enable(); +#endif + break; + } +} + +static const char *sunxi_get_mon_desc(enum sunxi_monitor monitor) +{ + switch (monitor) { + case sunxi_monitor_none: return "none"; + 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"; + } + return NULL; /* never reached */ +} + +ulong board_get_usable_ram_top(ulong total_size) +{ + return gd->ram_top - CONFIG_SUNXI_MAX_FB_SIZE; +} + +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; +} + +void *video_hw_init(void) +{ + static GraphicDevice *graphic_device = &sunxi_display.graphic_device; + const struct ctfb_res_modes *mode; + struct ctfb_res_modes custom; + const char *options; +#ifdef CONFIG_VIDEO_HDMI + int ret, hpd, hpd_delay, edid; +#endif + int i, overscan_offset, overscan_x, overscan_y; + unsigned int fb_dma_addr; + char mon[16]; + char *lcd_mode = CONFIG_VIDEO_LCD_MODE; + + memset(&sunxi_display, 0, sizeof(struct sunxi_display)); + + 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. */ + ret = sunxi_hdmi_hpd_detect(hpd_delay); + if (ret) { + printf("HDMI connected: "); + if (edid && sunxi_hdmi_edid_get_mode(&custom) == 0) + mode = &custom; + } else if (hpd) { + 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: + return NULL; + 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 NULL; + } + break; + case sunxi_monitor_lcd: + if (!sunxi_has_lcd()) { + printf("LCD not supported on this board\n"); + sunxi_display.monitor = sunxi_monitor_none; + return NULL; + } + 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 NULL; + } + 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 NULL; + } + 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() ? 32 : 0; + if (overscan_y == -1) + overscan_y = sunxi_is_composite() ? 20 : 0; + + sunxi_display.fb_size = + (mode->xres * mode->yres * 4 + 0xfff) & ~0xfff; + 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; + + if (sunxi_display.fb_size > CONFIG_SUNXI_MAX_FB_SIZE) { + printf("Error need %dkB for fb, but only %dkB is reserved\n", + sunxi_display.fb_size >> 10, + CONFIG_SUNXI_MAX_FB_SIZE >> 10); + return NULL; + } + + 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); + + gd->fb_base = gd->bd->bi_dram[0].start + + gd->bd->bi_dram[0].size - sunxi_display.fb_size; + sunxi_engines_init(); + + fb_dma_addr = gd->fb_base - CONFIG_SYS_SDRAM_BASE; + sunxi_display.fb_addr = gd->fb_base; + if (overscan_offset) { + fb_dma_addr += 0x1000 - (overscan_offset & 0xfff); + sunxi_display.fb_addr += (overscan_offset + 0xfff) & ~0xfff; + memset((void *)gd->fb_base, 0, sunxi_display.fb_size); + flush_cache(gd->fb_base, sunxi_display.fb_size); + } + sunxi_mode_set(mode, fb_dma_addr); + + /* + * These are the only members of this structure that are used. All the + * others are driver specific. The pitch is stored in plnSizeX. + */ + graphic_device->frameAdrs = sunxi_display.fb_addr; + graphic_device->gdfIndex = GDF_32BIT_X888RGB; + graphic_device->gdfBytesPP = 4; + graphic_device->winSizeX = mode->xres - 2 * overscan_x; + graphic_device->winSizeY = mode->yres - 2 * overscan_y; + graphic_device->plnSizeX = mode->xres * graphic_device->gdfBytesPP; + + return graphic_device; +} + +/* + * Simplefb support. + */ +#if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_VIDEO_DT_SIMPLEFB) +int sunxi_simplefb_setup(void *blob) +{ + static GraphicDevice *graphic_device = &sunxi_display.graphic_device; + int offset, ret; + u64 start, size; + const char *pipeline = NULL; + +#ifdef CONFIG_MACH_SUN4I +#define PIPELINE_PREFIX "de_fe0-" +#else +#define PIPELINE_PREFIX +#endif + + 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; + } + + /* Find a prefilled simpefb node, matching out pipeline config */ + offset = fdt_node_offset_by_compatible(blob, -1, + "allwinner,simple-framebuffer"); + while (offset >= 0) { + ret = fdt_stringlist_search(blob, offset, "allwinner,pipeline", + pipeline); + if (ret == 0) + break; + offset = fdt_node_offset_by_compatible(blob, offset, + "allwinner,simple-framebuffer"); + } + 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 = gd->bd->bi_dram[0].size - sunxi_display.fb_size; + 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, + graphic_device->winSizeX, graphic_device->winSizeY, + graphic_device->plnSizeX, "x8r8g8b8"); + if (ret) + eprintf("Cannot setup simplefb: Error setting properties\n"); + + return ret; +} +#endif /* CONFIG_OF_BOARD_SETUP && CONFIG_VIDEO_DT_SIMPLEFB */ diff --git a/drivers/video/sunxi_display.c b/drivers/video/sunxi_display.c deleted file mode 100644 index 6f8ee01..0000000 --- a/drivers/video/sunxi_display.c +++ /dev/null @@ -1,1599 +0,0 @@ -/* - * Display driver for Allwinner SoCs. - * - * (C) Copyright 2013-2014 Luc Verhaegen - * (C) Copyright 2014-2015 Hans de Goede - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include "videomodes.h" -#include "anx9804.h" -#include "hitachi_tx18d42vm_lcd.h" -#include "ssd2828.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; - -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 { - GraphicDevice graphic_device; - enum sunxi_monitor monitor; - unsigned int depth; - unsigned int fb_addr; - unsigned int fb_size; -} sunxi_display; - -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); - - 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 ctfb_res_modes *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; - - /* SUNXI_HDMI_CTRL_ENABLE & PAD_CTRL0 are already set by hpd_detect */ - 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); - - /* 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) { - 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(void) -{ - switch (sunxi_display.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 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) -{ - 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()) { - 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); -} - -/* - * LCDC, what allwinner calls a CRTC, so timing controller and serializer. - */ -static void sunxi_lcdc_pll_set(int tcon, int dotclock, - int *clk_div, int *clk_double) -{ - struct sunxi_ccm_reg * const ccm = - (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - int value, n, m, min_m, max_m, diff; - int best_n = 0, best_m = 0, best_diff = 0x0FFFFFFF; - int best_double = 0; - bool use_mipi_pll = false; - - if (tcon == 0) { -#ifdef CONFIG_VIDEO_LCD_IF_PARALLEL - min_m = 6; - max_m = 127; -#endif -#ifdef CONFIG_VIDEO_LCD_IF_LVDS - min_m = max_m = 7; -#endif - } else { - min_m = 1; - max_m = 15; - } - - /* - * 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 = min_m; m <= max_m; m++) { - n = (m * dotclock) / 3000; - - if ((n >= 9) && (n <= 127)) { - value = (3000 * n) / m; - diff = dotclock - value; - if (diff < best_diff) { - best_diff = diff; - best_m = m; - best_n = n; - best_double = 0; - } - } - - /* These are just duplicates */ - if (!(m & 1)) - continue; - - n = (m * dotclock) / 6000; - if ((n >= 9) && (n <= 127)) { - value = (6000 * n) / m; - diff = dotclock - value; - if (diff < best_diff) { - best_diff = diff; - best_m = m; - best_n = n; - best_double = 1; - } - } - } - -#ifdef CONFIG_MACH_SUN6I - /* - * Use the MIPI pll if we've been unable to find any matching setting - * for PLL3, this happens with high dotclocks because of min_m = 6. - */ - if (tcon == 0 && best_n == 0) { - use_mipi_pll = true; - best_m = 6; /* Minimum m for tcon0 */ - } - - if (use_mipi_pll) { - clock_set_pll3(297000000); /* Fix the video pll at 297 MHz */ - clock_set_mipi_pll(best_m * dotclock * 1000); - debug("dotclock: %dkHz = %dkHz via mipi pll\n", - dotclock, clock_get_mipi_pll() / best_m / 1000); - } else -#endif - { - clock_set_pll3(best_n * 3000000); - debug("dotclock: %dkHz = %dkHz: (%d * 3MHz * %d) / %d\n", - dotclock, - (best_double + 1) * clock_get_pll3() / best_m / 1000, - best_double + 1, best_n, best_m); - } - - if (tcon == 0) { - u32 pll; - - if (use_mipi_pll) - pll = CCM_LCD_CH0_CTRL_MIPI_PLL; - else if (best_double) - pll = CCM_LCD_CH0_CTRL_PLL3_2X; - else - pll = CCM_LCD_CH0_CTRL_PLL3; - - writel(CCM_LCD_CH0_CTRL_GATE | CCM_LCD_CH0_CTRL_RST | pll, - &ccm->lcd0_ch0_clk_cfg); - } else { - writel(CCM_LCD_CH1_CTRL_GATE | - (best_double ? CCM_LCD_CH1_CTRL_PLL3_2X : - CCM_LCD_CH1_CTRL_PLL3) | - CCM_LCD_CH1_CTRL_M(best_m), &ccm->lcd0_ch1_clk_cfg); - if (sunxi_is_composite()) - setbits_le32(&ccm->lcd0_ch1_clk_cfg, - CCM_LCD_CH1_CTRL_HALF_SCLK1); - } - - *clk_div = best_m; - *clk_double = best_double; -} - -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 - - /* Init lcdc */ - writel(0, &lcdc->ctrl); /* Disable tcon */ - writel(0, &lcdc->int0); /* Disable all interrupts */ - - /* Disable tcon0 dot clock */ - clrbits_le32(&lcdc->tcon0_dclk, SUNXI_LCDC_TCON0_DCLK_ENABLE); - - /* Set all io lines to tristate */ - writel(0xffffffff, &lcdc->tcon0_io_tristate); - writel(0xffffffff, &lcdc->tcon1_io_tristate); -} - -static void sunxi_lcdc_enable(void) -{ - struct sunxi_lcdc_reg * const lcdc = - (struct sunxi_lcdc_reg *)SUNXI_LCD0_BASE; - - setbits_le32(&lcdc->ctrl, SUNXI_LCDC_CTRL_TCON_ENABLE); -#ifdef CONFIG_VIDEO_LCD_IF_LVDS - setbits_le32(&lcdc->tcon0_lvds_intf, SUNXI_LCDC_TCON0_LVDS_INTF_ENABLE); - setbits_le32(&lcdc->lvds_ana0, SUNXI_LCDC_LVDS_ANA0); -#ifdef CONFIG_SUNXI_GEN_SUN6I - udelay(2); /* delay at least 1200 ns */ - setbits_le32(&lcdc->lvds_ana0, SUNXI_LCDC_LVDS_ANA0_EN_MB); - udelay(2); /* delay at least 1200 ns */ - setbits_le32(&lcdc->lvds_ana0, SUNXI_LCDC_LVDS_ANA0_DRVC); - if (sunxi_display.depth == 18) - setbits_le32(&lcdc->lvds_ana0, SUNXI_LCDC_LVDS_ANA0_DRVD(0x7)); - else - setbits_le32(&lcdc->lvds_ana0, SUNXI_LCDC_LVDS_ANA0_DRVD(0xf)); -#else - setbits_le32(&lcdc->lvds_ana0, SUNXI_LCDC_LVDS_ANA0_UPDATE); - udelay(2); /* delay at least 1200 ns */ - setbits_le32(&lcdc->lvds_ana1, SUNXI_LCDC_LVDS_ANA1_INIT1); - udelay(1); /* delay at least 120 ns */ - setbits_le32(&lcdc->lvds_ana1, SUNXI_LCDC_LVDS_ANA1_INIT2); - setbits_le32(&lcdc->lvds_ana0, SUNXI_LCDC_LVDS_ANA0_UPDATE); -#endif -#endif -} - -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 int sunxi_lcdc_get_clk_delay(const struct ctfb_res_modes *mode, int tcon) -{ - int delay; - - delay = mode->lower_margin + mode->vsync_len + mode->upper_margin; - if (mode->vmode == FB_VMODE_INTERLACED) - delay /= 2; - if (tcon == 1) - delay -= 2; - - return (delay > 30) ? 30 : delay; -} - -static void sunxi_lcdc_tcon0_mode_set(const struct ctfb_res_modes *mode, - bool for_ext_vga_dac) -{ - struct sunxi_lcdc_reg * const lcdc = - (struct sunxi_lcdc_reg *)SUNXI_LCD0_BASE; - int bp, clk_delay, clk_div, clk_double, pin, total, val; - -#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 - } - - sunxi_lcdc_pll_set(0, mode->pixclock_khz, &clk_div, &clk_double); - - /* Use tcon0 */ - clrsetbits_le32(&lcdc->ctrl, SUNXI_LCDC_CTRL_IO_MAP_MASK, - SUNXI_LCDC_CTRL_IO_MAP_TCON0); - - clk_delay = sunxi_lcdc_get_clk_delay(mode, 0); - writel(SUNXI_LCDC_TCON0_CTRL_ENABLE | - SUNXI_LCDC_TCON0_CTRL_CLK_DELAY(clk_delay), &lcdc->tcon0_ctrl); - - writel(SUNXI_LCDC_TCON0_DCLK_ENABLE | - SUNXI_LCDC_TCON0_DCLK_DIV(clk_div), &lcdc->tcon0_dclk); - - writel(SUNXI_LCDC_X(mode->xres) | SUNXI_LCDC_Y(mode->yres), - &lcdc->tcon0_timing_active); - - bp = mode->hsync_len + mode->left_margin; - total = mode->xres + mode->right_margin + bp; - writel(SUNXI_LCDC_TCON0_TIMING_H_TOTAL(total) | - SUNXI_LCDC_TCON0_TIMING_H_BP(bp), &lcdc->tcon0_timing_h); - - bp = mode->vsync_len + mode->upper_margin; - total = mode->yres + mode->lower_margin + bp; - writel(SUNXI_LCDC_TCON0_TIMING_V_TOTAL(total) | - SUNXI_LCDC_TCON0_TIMING_V_BP(bp), &lcdc->tcon0_timing_v); - -#ifdef CONFIG_VIDEO_LCD_IF_PARALLEL - writel(SUNXI_LCDC_X(mode->hsync_len) | SUNXI_LCDC_Y(mode->vsync_len), - &lcdc->tcon0_timing_sync); - - writel(0, &lcdc->tcon0_hv_intf); - writel(0, &lcdc->tcon0_cpu_intf); -#endif -#ifdef CONFIG_VIDEO_LCD_IF_LVDS - val = (sunxi_display.depth == 18) ? 1 : 0; - writel(SUNXI_LCDC_TCON0_LVDS_INTF_BITWIDTH(val) | - SUNXI_LCDC_TCON0_LVDS_CLK_SEL_TCON0, &lcdc->tcon0_lvds_intf); -#endif - - if (sunxi_display.depth == 18 || sunxi_display.depth == 16) { - writel(SUNXI_LCDC_TCON0_FRM_SEED, &lcdc->tcon0_frm_seed[0]); - writel(SUNXI_LCDC_TCON0_FRM_SEED, &lcdc->tcon0_frm_seed[1]); - writel(SUNXI_LCDC_TCON0_FRM_SEED, &lcdc->tcon0_frm_seed[2]); - writel(SUNXI_LCDC_TCON0_FRM_SEED, &lcdc->tcon0_frm_seed[3]); - writel(SUNXI_LCDC_TCON0_FRM_SEED, &lcdc->tcon0_frm_seed[4]); - writel(SUNXI_LCDC_TCON0_FRM_SEED, &lcdc->tcon0_frm_seed[5]); - writel(SUNXI_LCDC_TCON0_FRM_TAB0, &lcdc->tcon0_frm_table[0]); - writel(SUNXI_LCDC_TCON0_FRM_TAB1, &lcdc->tcon0_frm_table[1]); - writel(SUNXI_LCDC_TCON0_FRM_TAB2, &lcdc->tcon0_frm_table[2]); - writel(SUNXI_LCDC_TCON0_FRM_TAB3, &lcdc->tcon0_frm_table[3]); - writel(((sunxi_display.depth == 18) ? - SUNXI_LCDC_TCON0_FRM_CTRL_RGB666 : - SUNXI_LCDC_TCON0_FRM_CTRL_RGB565), - &lcdc->tcon0_frm_ctrl); - } - - val = SUNXI_LCDC_TCON0_IO_POL_DCLK_PHASE(CONFIG_VIDEO_LCD_DCLK_PHASE); - if (!(mode->sync & FB_SYNC_HOR_HIGH_ACT)) - val |= SUNXI_LCDC_TCON_HSYNC_MASK; - if (!(mode->sync & FB_SYNC_VERT_HIGH_ACT)) - val |= SUNXI_LCDC_TCON_VSYNC_MASK; - -#ifdef CONFIG_VIDEO_VGA_VIA_LCD_FORCE_SYNC_ACTIVE_HIGH - if (for_ext_vga_dac) - val = 0; -#endif - writel(val, &lcdc->tcon0_io_polarity); - - writel(0, &lcdc->tcon0_io_tristate); -} - -#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) -{ - struct sunxi_lcdc_reg * const lcdc = - (struct sunxi_lcdc_reg *)SUNXI_LCD0_BASE; - int bp, clk_delay, total, val, yres; - - /* Use tcon1 */ - clrsetbits_le32(&lcdc->ctrl, SUNXI_LCDC_CTRL_IO_MAP_MASK, - SUNXI_LCDC_CTRL_IO_MAP_TCON1); - - clk_delay = sunxi_lcdc_get_clk_delay(mode, 1); - writel(SUNXI_LCDC_TCON1_CTRL_ENABLE | - ((mode->vmode == FB_VMODE_INTERLACED) ? - SUNXI_LCDC_TCON1_CTRL_INTERLACE_ENABLE : 0) | - SUNXI_LCDC_TCON1_CTRL_CLK_DELAY(clk_delay), &lcdc->tcon1_ctrl); - - yres = mode->yres; - if (mode->vmode == FB_VMODE_INTERLACED) - yres /= 2; - writel(SUNXI_LCDC_X(mode->xres) | SUNXI_LCDC_Y(yres), - &lcdc->tcon1_timing_source); - writel(SUNXI_LCDC_X(mode->xres) | SUNXI_LCDC_Y(yres), - &lcdc->tcon1_timing_scale); - writel(SUNXI_LCDC_X(mode->xres) | SUNXI_LCDC_Y(yres), - &lcdc->tcon1_timing_out); - - bp = mode->hsync_len + mode->left_margin; - total = mode->xres + mode->right_margin + bp; - writel(SUNXI_LCDC_TCON1_TIMING_H_TOTAL(total) | - SUNXI_LCDC_TCON1_TIMING_H_BP(bp), &lcdc->tcon1_timing_h); - - bp = mode->vsync_len + mode->upper_margin; - total = mode->yres + mode->lower_margin + bp; - if (mode->vmode == FB_VMODE_NONINTERLACED) - total *= 2; - writel(SUNXI_LCDC_TCON1_TIMING_V_TOTAL(total) | - SUNXI_LCDC_TCON1_TIMING_V_BP(bp), &lcdc->tcon1_timing_v); - - writel(SUNXI_LCDC_X(mode->hsync_len) | SUNXI_LCDC_Y(mode->vsync_len), - &lcdc->tcon1_timing_sync); - - if (use_portd_hvsync) { - sunxi_gpio_set_cfgpin(SUNXI_GPD(26), SUNXI_GPD_LCD0); - sunxi_gpio_set_cfgpin(SUNXI_GPD(27), SUNXI_GPD_LCD0); - - val = 0; - if (mode->sync & FB_SYNC_HOR_HIGH_ACT) - val |= SUNXI_LCDC_TCON_HSYNC_MASK; - if (mode->sync & FB_SYNC_VERT_HIGH_ACT) - val |= SUNXI_LCDC_TCON_VSYNC_MASK; - writel(val, &lcdc->tcon1_io_polarity); - - clrbits_le32(&lcdc->tcon1_io_tristate, - SUNXI_LCDC_TCON_VSYNC_MASK | - SUNXI_LCDC_TCON_HSYNC_MASK); - } - -#ifdef CONFIG_MACH_SUN5I - if (sunxi_is_composite()) - clrsetbits_le32(&lcdc->mux_ctrl, SUNXI_LCDC_MUX_CTRL_SRC0_MASK, - SUNXI_LCDC_MUX_CTRL_SRC0(1)); -#endif - - sunxi_lcdc_pll_set(1, mode->pixclock_khz, clk_div, clk_double); -} -#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) -{ - 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 (sunxi_display.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(void) -{ - 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 (sunxi_display.monitor) { - case sunxi_monitor_vga: - writel(SUNXI_TVE_GCTRL_DAC_INPUT(0, 1) | - SUNXI_TVE_GCTRL_DAC_INPUT(1, 2) | - SUNXI_TVE_GCTRL_DAC_INPUT(2, 3), &tve->gctrl); - writel(SUNXI_TVE_CFG0_VGA, &tve->cfg0); - writel(SUNXI_TVE_DAC_CFG0_VGA, &tve->dac_cfg0); - writel(SUNXI_TVE_UNKNOWN1_VGA, &tve->unknown1); - break; - case sunxi_monitor_composite_pal_nc: - writel(SUNXI_TVE_CHROMA_FREQ_PAL_NC, &tve->chroma_freq); - /* Fall through */ - case sunxi_monitor_composite_pal: - writel(SUNXI_TVE_GCTRL_DAC_INPUT(0, 1) | - SUNXI_TVE_GCTRL_DAC_INPUT(1, 2) | - SUNXI_TVE_GCTRL_DAC_INPUT(2, 3) | - SUNXI_TVE_GCTRL_DAC_INPUT(3, 4), &tve->gctrl); - writel(SUNXI_TVE_CFG0_PAL, &tve->cfg0); - writel(SUNXI_TVE_DAC_CFG0_COMPOSITE, &tve->dac_cfg0); - writel(SUNXI_TVE_FILTER_COMPOSITE, &tve->filter); - writel(SUNXI_TVE_PORCH_NUM_PAL, &tve->porch_num); - writel(SUNXI_TVE_LINE_NUM_PAL, &tve->line_num); - writel(SUNXI_TVE_BLANK_BLACK_LEVEL_PAL, &tve->blank_black_level); - writel(SUNXI_TVE_UNKNOWN1_COMPOSITE, &tve->unknown1); - writel(SUNXI_TVE_CBR_LEVEL_PAL, &tve->cbr_level); - writel(SUNXI_TVE_BURST_WIDTH_COMPOSITE, &tve->burst_width); - writel(SUNXI_TVE_UNKNOWN2_PAL, &tve->unknown2); - writel(SUNXI_TVE_ACTIVE_NUM_COMPOSITE, &tve->active_num); - writel(SUNXI_TVE_CHROMA_BW_GAIN_COMP, &tve->chroma_bw_gain); - writel(SUNXI_TVE_NOTCH_WIDTH_COMPOSITE, &tve->notch_width); - writel(SUNXI_TVE_RESYNC_NUM_PAL, &tve->resync_num); - writel(SUNXI_TVE_SLAVE_PARA_COMPOSITE, &tve->slave_para); - break; - case sunxi_monitor_composite_pal_m: - writel(SUNXI_TVE_CHROMA_FREQ_PAL_M, &tve->chroma_freq); - writel(SUNXI_TVE_COLOR_BURST_PAL_M, &tve->color_burst); - /* Fall through */ - case sunxi_monitor_composite_ntsc: - writel(SUNXI_TVE_GCTRL_DAC_INPUT(0, 1) | - SUNXI_TVE_GCTRL_DAC_INPUT(1, 2) | - SUNXI_TVE_GCTRL_DAC_INPUT(2, 3) | - SUNXI_TVE_GCTRL_DAC_INPUT(3, 4), &tve->gctrl); - writel(SUNXI_TVE_CFG0_NTSC, &tve->cfg0); - writel(SUNXI_TVE_DAC_CFG0_COMPOSITE, &tve->dac_cfg0); - writel(SUNXI_TVE_FILTER_COMPOSITE, &tve->filter); - writel(SUNXI_TVE_PORCH_NUM_NTSC, &tve->porch_num); - writel(SUNXI_TVE_LINE_NUM_NTSC, &tve->line_num); - writel(SUNXI_TVE_BLANK_BLACK_LEVEL_NTSC, &tve->blank_black_level); - writel(SUNXI_TVE_UNKNOWN1_COMPOSITE, &tve->unknown1); - writel(SUNXI_TVE_CBR_LEVEL_NTSC, &tve->cbr_level); - writel(SUNXI_TVE_BURST_PHASE_NTSC, &tve->burst_phase); - writel(SUNXI_TVE_BURST_WIDTH_COMPOSITE, &tve->burst_width); - writel(SUNXI_TVE_UNKNOWN2_NTSC, &tve->unknown2); - writel(SUNXI_TVE_SYNC_VBI_LEVEL_NTSC, &tve->sync_vbi_level); - writel(SUNXI_TVE_ACTIVE_NUM_COMPOSITE, &tve->active_num); - writel(SUNXI_TVE_CHROMA_BW_GAIN_COMP, &tve->chroma_bw_gain); - writel(SUNXI_TVE_NOTCH_WIDTH_COMPOSITE, &tve->notch_width); - writel(SUNXI_TVE_RESYNC_NUM_NTSC, &tve->resync_num); - writel(SUNXI_TVE_SLAVE_PARA_COMPOSITE, &tve->slave_para); - break; - case sunxi_monitor_none: - case sunxi_monitor_dvi: - case sunxi_monitor_hdmi: - case sunxi_monitor_lcd: - break; - } -} - -static void sunxi_tvencoder_enable(void) -{ - struct sunxi_tve_reg * const tve = - (struct sunxi_tve_reg *)SUNXI_TVE0_BASE; - - setbits_le32(&tve->gctrl, SUNXI_TVE_GCTRL_ENABLE); -} - -#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(const struct ctfb_res_modes *mode, - unsigned int address) -{ - int __maybe_unused clk_div, clk_double; - - 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); - sunxi_lcdc_tcon1_mode_set(mode, &clk_div, &clk_double, 0); - sunxi_hdmi_mode_set(mode, clk_div, clk_double); - sunxi_composer_enable(); - sunxi_lcdc_enable(); - 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); - sunxi_lcdc_tcon0_mode_set(mode, false); - sunxi_composer_enable(); - sunxi_lcdc_enable(); -#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); - sunxi_lcdc_tcon1_mode_set(mode, &clk_div, &clk_double, 1); - sunxi_tvencoder_mode_set(); - sunxi_composer_enable(); - sunxi_lcdc_enable(); - sunxi_tvencoder_enable(); -#elif defined CONFIG_VIDEO_VGA_VIA_LCD - sunxi_composer_mode_set(mode, address); - sunxi_lcdc_tcon0_mode_set(mode, true); - sunxi_composer_enable(); - sunxi_lcdc_enable(); - 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); - sunxi_lcdc_tcon1_mode_set(mode, &clk_div, &clk_double, 0); - sunxi_tvencoder_mode_set(); - sunxi_composer_enable(); - sunxi_lcdc_enable(); - sunxi_tvencoder_enable(); -#endif - break; - } -} - -static const char *sunxi_get_mon_desc(enum sunxi_monitor monitor) -{ - switch (monitor) { - case sunxi_monitor_none: return "none"; - 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"; - } - return NULL; /* never reached */ -} - -ulong board_get_usable_ram_top(ulong total_size) -{ - return gd->ram_top - CONFIG_SUNXI_MAX_FB_SIZE; -} - -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; -} - -void *video_hw_init(void) -{ - static GraphicDevice *graphic_device = &sunxi_display.graphic_device; - const struct ctfb_res_modes *mode; - struct ctfb_res_modes custom; - const char *options; -#ifdef CONFIG_VIDEO_HDMI - int ret, hpd, hpd_delay, edid; -#endif - int i, overscan_offset, overscan_x, overscan_y; - unsigned int fb_dma_addr; - char mon[16]; - char *lcd_mode = CONFIG_VIDEO_LCD_MODE; - - memset(&sunxi_display, 0, sizeof(struct sunxi_display)); - - 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. */ - ret = sunxi_hdmi_hpd_detect(hpd_delay); - if (ret) { - printf("HDMI connected: "); - if (edid && sunxi_hdmi_edid_get_mode(&custom) == 0) - mode = &custom; - } else if (hpd) { - 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: - return NULL; - 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 NULL; - } - break; - case sunxi_monitor_lcd: - if (!sunxi_has_lcd()) { - printf("LCD not supported on this board\n"); - sunxi_display.monitor = sunxi_monitor_none; - return NULL; - } - 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 NULL; - } - 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 NULL; - } - 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() ? 32 : 0; - if (overscan_y == -1) - overscan_y = sunxi_is_composite() ? 20 : 0; - - sunxi_display.fb_size = - (mode->xres * mode->yres * 4 + 0xfff) & ~0xfff; - 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; - - if (sunxi_display.fb_size > CONFIG_SUNXI_MAX_FB_SIZE) { - printf("Error need %dkB for fb, but only %dkB is reserved\n", - sunxi_display.fb_size >> 10, - CONFIG_SUNXI_MAX_FB_SIZE >> 10); - return NULL; - } - - 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); - - gd->fb_base = gd->bd->bi_dram[0].start + - gd->bd->bi_dram[0].size - sunxi_display.fb_size; - sunxi_engines_init(); - - fb_dma_addr = gd->fb_base - CONFIG_SYS_SDRAM_BASE; - sunxi_display.fb_addr = gd->fb_base; - if (overscan_offset) { - fb_dma_addr += 0x1000 - (overscan_offset & 0xfff); - sunxi_display.fb_addr += (overscan_offset + 0xfff) & ~0xfff; - memset((void *)gd->fb_base, 0, sunxi_display.fb_size); - flush_cache(gd->fb_base, sunxi_display.fb_size); - } - sunxi_mode_set(mode, fb_dma_addr); - - /* - * These are the only members of this structure that are used. All the - * others are driver specific. The pitch is stored in plnSizeX. - */ - graphic_device->frameAdrs = sunxi_display.fb_addr; - graphic_device->gdfIndex = GDF_32BIT_X888RGB; - graphic_device->gdfBytesPP = 4; - graphic_device->winSizeX = mode->xres - 2 * overscan_x; - graphic_device->winSizeY = mode->yres - 2 * overscan_y; - graphic_device->plnSizeX = mode->xres * graphic_device->gdfBytesPP; - - return graphic_device; -} - -/* - * Simplefb support. - */ -#if defined(CONFIG_OF_BOARD_SETUP) && defined(CONFIG_VIDEO_DT_SIMPLEFB) -int sunxi_simplefb_setup(void *blob) -{ - static GraphicDevice *graphic_device = &sunxi_display.graphic_device; - int offset, ret; - u64 start, size; - const char *pipeline = NULL; - -#ifdef CONFIG_MACH_SUN4I -#define PIPELINE_PREFIX "de_fe0-" -#else -#define PIPELINE_PREFIX -#endif - - 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; - } - - /* Find a prefilled simpefb node, matching out pipeline config */ - offset = fdt_node_offset_by_compatible(blob, -1, - "allwinner,simple-framebuffer"); - while (offset >= 0) { - ret = fdt_stringlist_search(blob, offset, "allwinner,pipeline", - pipeline); - if (ret == 0) - break; - offset = fdt_node_offset_by_compatible(blob, offset, - "allwinner,simple-framebuffer"); - } - 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 = gd->bd->bi_dram[0].size - sunxi_display.fb_size; - 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, - graphic_device->winSizeX, graphic_device->winSizeY, - graphic_device->plnSizeX, "x8r8g8b8"); - if (ret) - eprintf("Cannot setup simplefb: Error setting properties\n"); - - return ret; -} -#endif /* CONFIG_OF_BOARD_SETUP && CONFIG_VIDEO_DT_SIMPLEFB */ -- cgit v0.10.2