#ifndef _SUNXI_DISPLAY_H
#define _SUNXI_DISPLAY_H
+struct sunxi_de_fe_reg {
+ u32 enable; /* 0x000 */
+ u32 frame_ctrl; /* 0x004 */
+ u32 bypass; /* 0x008 */
+ u32 algorithm_sel; /* 0x00c */
+ u32 line_int_ctrl; /* 0x010 */
+ u8 res0[0x0c]; /* 0x014 */
+ u32 ch0_addr; /* 0x020 */
+ u32 ch1_addr; /* 0x024 */
+ u32 ch2_addr; /* 0x028 */
+ u32 field_sequence; /* 0x02c */
+ u32 ch0_offset; /* 0x030 */
+ u32 ch1_offset; /* 0x034 */
+ u32 ch2_offset; /* 0x038 */
+ u8 res1[0x04]; /* 0x03c */
+ u32 ch0_stride; /* 0x040 */
+ u32 ch1_stride; /* 0x044 */
+ u32 ch2_stride; /* 0x048 */
+ u32 input_fmt; /* 0x04c */
+ u32 ch3_addr; /* 0x050 */
+ u32 ch4_addr; /* 0x054 */
+ u32 ch5_addr; /* 0x058 */
+ u32 output_fmt; /* 0x05c */
+ u32 int_enable; /* 0x060 */
+ u32 int_status; /* 0x064 */
+ u32 status; /* 0x068 */
+ u8 res2[0x04]; /* 0x06c */
+ u32 csc_coef00; /* 0x070 */
+ u32 csc_coef01; /* 0x074 */
+ u32 csc_coef02; /* 0x078 */
+ u32 csc_coef03; /* 0x07c */
+ u32 csc_coef10; /* 0x080 */
+ u32 csc_coef11; /* 0x084 */
+ u32 csc_coef12; /* 0x088 */
+ u32 csc_coef13; /* 0x08c */
+ u32 csc_coef20; /* 0x090 */
+ u32 csc_coef21; /* 0x094 */
+ u32 csc_coef22; /* 0x098 */
+ u32 csc_coef23; /* 0x09c */
+ u32 deinterlace_ctrl; /* 0x0a0 */
+ u32 deinterlace_diag; /* 0x0a4 */
+ u32 deinterlace_tempdiff; /* 0x0a8 */
+ u32 deinterlace_sawtooth; /* 0x0ac */
+ u32 deinterlace_spatcomp; /* 0x0b0 */
+ u32 deinterlace_burstlen; /* 0x0b4 */
+ u32 deinterlace_preluma; /* 0x0b8 */
+ u32 deinterlace_tile_addr; /* 0x0bc */
+ u32 deinterlace_tile_stride; /* 0x0c0 */
+ u8 res3[0x0c]; /* 0x0c4 */
+ u32 wb_stride_enable; /* 0x0d0 */
+ u32 ch3_stride; /* 0x0d4 */
+ u32 ch4_stride; /* 0x0d8 */
+ u32 ch5_stride; /* 0x0dc */
+ u32 fe_3d_ctrl; /* 0x0e0 */
+ u32 fe_3d_ch0_addr; /* 0x0e4 */
+ u32 fe_3d_ch1_addr; /* 0x0e8 */
+ u32 fe_3d_ch2_addr; /* 0x0ec */
+ u32 fe_3d_ch0_offset; /* 0x0f0 */
+ u32 fe_3d_ch1_offset; /* 0x0f4 */
+ u32 fe_3d_ch2_offset; /* 0x0f8 */
+ u8 res4[0x04]; /* 0x0fc */
+ u32 ch0_insize; /* 0x100 */
+ u32 ch0_outsize; /* 0x104 */
+ u32 ch0_horzfact; /* 0x108 */
+ u32 ch0_vertfact; /* 0x10c */
+ u32 ch0_horzphase; /* 0x110 */
+ u32 ch0_vertphase0; /* 0x114 */
+ u32 ch0_vertphase1; /* 0x118 */
+ u8 res5[0x04]; /* 0x11c */
+ u32 ch0_horztapoffset0; /* 0x120 */
+ u32 ch0_horztapoffset1; /* 0x124 */
+ u32 ch0_verttapoffset; /* 0x128 */
+ u8 res6[0xd4]; /* 0x12c */
+ u32 ch1_insize; /* 0x200 */
+ u32 ch1_outsize; /* 0x204 */
+ u32 ch1_horzfact; /* 0x208 */
+ u32 ch1_vertfact; /* 0x20c */
+ u32 ch1_horzphase; /* 0x210 */
+ u32 ch1_vertphase0; /* 0x214 */
+ u32 ch1_vertphase1; /* 0x218 */
+ u8 res7[0x04]; /* 0x21c */
+ u32 ch1_horztapoffset0; /* 0x220 */
+ u32 ch1_horztapoffset1; /* 0x224 */
+ u32 ch1_verttapoffset; /* 0x228 */
+ u8 res8[0x1d4]; /* 0x22c */
+ u32 ch0_horzcoef0[32]; /* 0x400 */
+ u32 ch0_horzcoef1[32]; /* 0x480 */
+ u32 ch0_vertcoef[32]; /* 0x500 */
+ u8 res9[0x80]; /* 0x580 */
+ u32 ch1_horzcoef0[32]; /* 0x600 */
+ u32 ch1_horzcoef1[32]; /* 0x680 */
+ u32 ch1_vertcoef[32]; /* 0x700 */
+ u8 res10[0x280]; /* 0x780 */
+ u32 vpp_enable; /* 0xa00 */
+ u32 vpp_dcti; /* 0xa04 */
+ u32 vpp_lp1; /* 0xa08 */
+ u32 vpp_lp2; /* 0xa0c */
+ u32 vpp_wle; /* 0xa10 */
+ u32 vpp_ble; /* 0xa14 */
+};
+
struct sunxi_de_be_reg {
u8 res0[0x800]; /* 0x000 */
u32 mode; /* 0x800 */
u32 cfg2; /* 0x13c */
};
+/*
+ * DE-FE register constants.
+ */
+#define SUNXI_DE_FE_WIDTH(x) (((x) - 1) << 0)
+#define SUNXI_DE_FE_HEIGHT(y) (((y) - 1) << 16)
+#define SUNXI_DE_FE_FACTOR_INT(n) ((n) << 16)
+#define SUNXI_DE_FE_ENABLE_EN (1 << 0)
+#define SUNXI_DE_FE_FRAME_CTRL_REG_RDY (1 << 0)
+#define SUNXI_DE_FE_FRAME_CTRL_COEF_RDY (1 << 1)
+#define SUNXI_DE_FE_FRAME_CTRL_FRM_START (1 << 16)
+#define SUNXI_DE_FE_BYPASS_CSC_BYPASS (1 << 1)
+#define SUNXI_DE_FE_INPUT_FMT_ARGB8888 0x00000151
+#define SUNXI_DE_FE_OUTPUT_FMT_ARGB8888 0x00000002
+
/*
* DE-BE register constants.
*/
#define SUNXI_DE_BE_MODE_LAYER0_ENABLE (1 << 8)
#define SUNXI_DE_BE_LAYER_STRIDE(x) ((x) << 5)
#define SUNXI_DE_BE_REG_CTRL_LOAD_REGS (1 << 0)
+#define SUNXI_DE_BE_LAYER_ATTR0_SRC_FE0 0x00000002
#define SUNXI_DE_BE_LAYER_ATTR1_FMT_XRGB8888 (0x09 << 8)
/*
#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
+
/*
* This is the entity that mixes and matches the different layers and inputs.
* Allwinner calls it the back-end, but i like composer better.
(struct sunxi_de_be_reg *)SUNXI_DE_BE0_BASE;
int i;
+ sunxi_frontend_init();
+
#if defined CONFIG_MACH_SUN6I || defined CONFIG_MACH_SUN8I
/* Reset off */
setbits_le32(&ccm->ahb_reset1_cfg, 1 << AHB_RESET_OFFSET_DE_BE0);
/* 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 */
struct sunxi_de_be_reg * const de_be =
(struct sunxi_de_be_reg *)SUNXI_DE_BE0_BASE;
+ 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);
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);
}
int offset, ret;
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 = "de_be0-lcd0-hdmi";
+ pipeline = PIPELINE_PREFIX "de_be0-lcd0-hdmi";
break;
case sunxi_monitor_lcd:
- pipeline = "de_be0-lcd0";
+ pipeline = PIPELINE_PREFIX "de_be0-lcd0";
break;
case sunxi_monitor_vga:
#ifdef CONFIG_VIDEO_VGA
- pipeline = "de_be0-lcd0-tve0";
+ pipeline = PIPELINE_PREFIX "de_be0-lcd0-tve0";
#elif defined CONFIG_VIDEO_VGA_VIA_LCD
- pipeline = "de_be0-lcd0";
+ pipeline = PIPELINE_PREFIX "de_be0-lcd0";
#endif
break;
}
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