From d9786d23808fcbc5dd3bd3913b036d42dd48653f Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Thu, 25 Dec 2014 13:58:06 +0100 Subject: sunxi: video: Add VGA output support Add support for VGA directly from the sunxi SoC / display engine. Signed-off-by: Hans de Goede Acked-by: Ian Campbell --- arch/arm/include/asm/arch-sunxi/clock_sun4i.h | 2 + arch/arm/include/asm/arch-sunxi/display.h | 76 +++++++++++++++++++++++++++ 2 files changed, 78 insertions(+) (limited to 'arch') diff --git a/arch/arm/include/asm/arch-sunxi/clock_sun4i.h b/arch/arm/include/asm/arch-sunxi/clock_sun4i.h index dbc5e58..64b5c38 100644 --- a/arch/arm/include/asm/arch-sunxi/clock_sun4i.h +++ b/arch/arm/include/asm/arch-sunxi/clock_sun4i.h @@ -190,6 +190,8 @@ struct sunxi_ccm_reg { #define AHB_GATE_OFFSET_HDMI 11 #define AHB_GATE_OFFSET_LCD1 5 #define AHB_GATE_OFFSET_LCD0 4 +#define AHB_GATE_OFFSET_TVE1 3 +#define AHB_GATE_OFFSET_TVE0 2 #define CCM_AHB_GATE_GPS (0x1 << 26) #define CCM_AHB_GATE_SDRAM (0x1 << 14) diff --git a/arch/arm/include/asm/arch-sunxi/display.h b/arch/arm/include/asm/arch-sunxi/display.h index 1d4e935..5ce355d 100644 --- a/arch/arm/include/asm/arch-sunxi/display.h +++ b/arch/arm/include/asm/arch-sunxi/display.h @@ -161,6 +161,52 @@ struct sunxi_hdmi_reg { }; /* + * This is based on the A10s User Manual, and the A10s only supports + * composite video and not vga like the A10 / A20 does, still other + * than the removed vga out capability the tvencoder seems to be the same. + * "unknown#" registers are registers which are used in the A10 kernel code, + * but not documented in the A10s User Manual. + */ +struct sunxi_tve_reg { + u32 gctrl; /* 0x000 */ + u32 cfg0; /* 0x004 */ + u32 dac_cfg0; /* 0x008 */ + u32 filter; /* 0x00c */ + u32 chroma_freq; /* 0x010 */ + u32 porch_num; /* 0x014 */ + u32 unknown0; /* 0x018 */ + u32 line_num; /* 0x01c */ + u32 blank_black_level; /* 0x020 */ + u32 unknown1; /* 0x024, seems to be 1 byte per dac */ + u8 res0[0x08]; /* 0x028 */ + u32 auto_detect_en; /* 0x030 */ + u32 auto_detect_int_status; /* 0x034 */ + u32 auto_detect_status; /* 0x038 */ + u32 auto_detect_debounce; /* 0x03c */ + u32 csc_reg0; /* 0x040 */ + u32 csc_reg1; /* 0x044 */ + u32 csc_reg2; /* 0x048 */ + u32 csc_reg3; /* 0x04c */ + u8 res1[0xb0]; /* 0x050 */ + u32 color_burst; /* 0x100 */ + u32 vsync_num; /* 0x104 */ + u32 notch_freq; /* 0x108 */ + u32 cbr_level; /* 0x10c */ + u32 burst_phase; /* 0x110 */ + u32 burst_width; /* 0x114 */ + u8 res2[0x04]; /* 0x118 */ + u32 sync_vbi_level; /* 0x11c */ + u32 white_level; /* 0x120 */ + u32 active_num; /* 0x124 */ + u32 chroma_bw_gain; /* 0x128 */ + u32 notch_width; /* 0x12c */ + u32 resync_num; /* 0x130 */ + u32 slave_para; /* 0x134 */ + u32 cfg1; /* 0x138 */ + u32 cfg2; /* 0x13c */ +}; + +/* * DE-BE register constants. */ #define SUNXI_DE_BE_WIDTH(x) (((x) - 1) << 0) @@ -299,6 +345,36 @@ struct sunxi_hdmi_reg { #define SUNXI_HMDI_DDC_LINE_CTRL_SCL_ENABLE (1 << 8) #define SUNXI_HMDI_DDC_LINE_CTRL_SDA_ENABLE (1 << 9) +/* + * TVE register constants. + */ +#define SUNXI_TVE_GCTRL_ENABLE (1 << 0) +/* + * Select input 0 to disable dac, 1 - 4 to feed dac from tve0, 5 - 8 to feed + * dac from tve1. When using tve1 the mux value must be written to both tve0's + * and tve1's gctrl reg. + */ +#define SUNXI_TVE_GCTRL_DAC_INPUT_MASK(dac) (0xf << (((dac) + 1) * 4)) +#define SUNXI_TVE_GCTRL_DAC_INPUT(dac, sel) ((sel) << (((dac) + 1) * 4)) +#define SUNXI_TVE_GCTRL_CFG0_VGA 0x20000000 +#define SUNXI_TVE_GCTRL_DAC_CFG0_VGA 0x403e1ac7 +#define SUNXI_TVE_GCTRL_UNKNOWN1_VGA 0x00000000 +#define SUNXI_TVE_AUTO_DETECT_EN_DET_EN(dac) (1 << ((dac) + 0)) +#define SUNXI_TVE_AUTO_DETECT_EN_INT_EN(dac) (1 << ((dac) + 16)) +#define SUNXI_TVE_AUTO_DETECT_INT_STATUS(dac) (1 << ((dac) + 0)) +#define SUNXI_TVE_AUTO_DETECT_STATUS_SHIFT(dac) ((dac) * 8) +#define SUNXI_TVE_AUTO_DETECT_STATUS_MASK(dac) (3 << ((dac) * 8)) +#define SUNXI_TVE_AUTO_DETECT_STATUS_NONE 0 +#define SUNXI_TVE_AUTO_DETECT_STATUS_CONNECTED 1 +#define SUNXI_TVE_AUTO_DETECT_STATUS_SHORT_GND 3 +#define SUNXI_TVE_AUTO_DETECT_DEBOUNCE_SHIFT(d) ((d) * 8) +#define SUNXI_TVE_AUTO_DETECT_DEBOUNCE_MASK(d) (0xf << ((d) * 8)) +#define SUNXI_TVE_CSC_REG0_ENABLE (1 << 31) +#define SUNXI_TVE_CSC_REG0 0x08440832 +#define SUNXI_TVE_CSC_REG1 0x3b6dace1 +#define SUNXI_TVE_CSC_REG2 0x0e1d13dc +#define SUNXI_TVE_CSC_REG3 0x00108080 + int sunxi_simplefb_setup(void *blob); #endif /* _SUNXI_DISPLAY_H */ -- cgit v1.1