diff options
author | Hans de Goede <hdegoede@redhat.com> | 2014-12-25 15:58:06 +0300 |
---|---|---|
committer | Hans de Goede <hdegoede@redhat.com> | 2015-01-14 16:56:39 +0300 |
commit | d9786d23808fcbc5dd3bd3913b036d42dd48653f (patch) | |
tree | e0b4c834a5c76fb69a7dce71e380d5938b41954e /drivers/video | |
parent | 49d2703dd88d5d68d63b52cd4811ed853408ea4c (diff) | |
download | u-boot-d9786d23808fcbc5dd3bd3913b036d42dd48653f.tar.xz |
sunxi: video: Add VGA output support
Add support for VGA directly from the sunxi SoC / display engine.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
Diffstat (limited to 'drivers/video')
-rw-r--r-- | drivers/video/sunxi_display.c | 60 |
1 files changed, 52 insertions, 8 deletions
diff --git a/drivers/video/sunxi_display.c b/drivers/video/sunxi_display.c index 5d5efd63cf..536e1cac4d 100644 --- a/drivers/video/sunxi_display.c +++ b/drivers/video/sunxi_display.c @@ -569,8 +569,7 @@ static void sunxi_lcdc_tcon0_mode_set(const struct ctfb_res_modes *mode) writel(0, &lcdc->tcon0_io_tristate); } -#ifdef CONFIG_VIDEO_HDMI - +#if defined CONFIG_VIDEO_HDMI || defined CONFIG_VIDEO_VGA static void sunxi_lcdc_tcon1_mode_set(const struct ctfb_res_modes *mode, int *clk_div, int *clk_double, bool use_portd_hvsync) @@ -624,6 +623,9 @@ static void sunxi_lcdc_tcon1_mode_set(const struct ctfb_res_modes *mode, } sunxi_lcdc_pll_set(1, mode->pixclock_khz, clk_div, clk_double); } +#endif /* CONFIG_VIDEO_HDMI || defined CONFIG_VIDEO_VGA */ + +#ifdef CONFIG_VIDEO_HDMI static void sunxi_hdmi_setup_info_frames(const struct ctfb_res_modes *mode) { @@ -735,6 +737,37 @@ static void sunxi_hdmi_enable(void) #endif /* CONFIG_VIDEO_HDMI */ +#ifdef CONFIG_VIDEO_VGA + +static void sunxi_vga_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; + + /* Clock on */ + setbits_le32(&ccm->ahb_gate1, 1 << AHB_GATE_OFFSET_TVE0); + + /* Set TVE in VGA mode */ + 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_GCTRL_CFG0_VGA, &tve->cfg0); + writel(SUNXI_TVE_GCTRL_DAC_CFG0_VGA, &tve->dac_cfg0); + writel(SUNXI_TVE_GCTRL_UNKNOWN1_VGA, &tve->unknown1); +} + +static void sunxi_vga_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 */ + static void sunxi_drc_init(void) { #if defined CONFIG_MACH_SUN6I || defined CONFIG_MACH_SUN8I @@ -757,13 +790,14 @@ static void sunxi_engines_init(void) 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: { + case sunxi_monitor_hdmi: #ifdef CONFIG_VIDEO_HDMI - int clk_div, clk_double; 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); @@ -771,7 +805,6 @@ static void sunxi_mode_set(const struct ctfb_res_modes *mode, sunxi_lcdc_enable(); sunxi_hdmi_enable(); #endif - } break; case sunxi_monitor_lcd: sunxi_lcdc_panel_enable(); @@ -782,7 +815,14 @@ static void sunxi_mode_set(const struct ctfb_res_modes *mode, sunxi_lcdc_backlight_enable(); break; case sunxi_monitor_vga: -#ifdef CONFIG_VIDEO_VGA_VIA_LCD +#ifdef CONFIG_VIDEO_VGA + sunxi_composer_mode_set(mode, address); + sunxi_lcdc_tcon1_mode_set(mode, &clk_div, &clk_double, 1); + sunxi_vga_mode_set(); + sunxi_composer_enable(); + sunxi_lcdc_enable(); + sunxi_vga_enable(); +#elif defined CONFIG_VIDEO_VGA_VIA_LCD sunxi_composer_mode_set(mode, address); sunxi_lcdc_tcon0_mode_set(mode); sunxi_composer_enable(); @@ -862,7 +902,7 @@ void *video_hw_init(void) if (lcd_mode[0]) { sunxi_display.monitor = sunxi_monitor_lcd; } else { -#ifdef CONFIG_VIDEO_VGA_VIA_LCD +#if defined CONFIG_VIDEO_VGA_VIA_LCD || defined CONFIG_VIDEO_VGA sunxi_display.monitor = sunxi_monitor_vga; #else sunxi_display.monitor = sunxi_monitor_none; @@ -894,7 +934,7 @@ void *video_hw_init(void) sunxi_display.monitor = sunxi_monitor_none; return NULL; case sunxi_monitor_vga: -#ifdef CONFIG_VIDEO_VGA_VIA_LCD +#if defined CONFIG_VIDEO_VGA_VIA_LCD || defined CONFIG_VIDEO_VGA sunxi_display.depth = 18; break; #else @@ -950,7 +990,11 @@ int sunxi_simplefb_setup(void *blob) pipeline = "de_be0-lcd0"; break; case sunxi_monitor_vga: +#ifdef CONFIG_VIDEO_VGA + pipeline = "de_be0-lcd0-tve0"; +#elif defined CONFIG_VIDEO_VGA_VIA_LCD pipeline = "de_be0-lcd0"; +#endif break; } |