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| author | Hans de Goede <hdegoede@redhat.com> | 2014-11-14 17:42:14 +0100 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2014-11-25 13:38:46 +0100 |
| commit | 211717a463ff956da983898ae96e2a7d3d506600 (patch) | |
| tree | 388eaccb1fb765f2276ed69f8981c69285006dde /drivers/video/sunxi_display.c | |
| parent | 7f2c521f90f546fd4077038730196e0990da933c (diff) | |
| download | u-boot-imx-211717a463ff956da983898ae96e2a7d3d506600.zip u-boot-imx-211717a463ff956da983898ae96e2a7d3d506600.tar.gz u-boot-imx-211717a463ff956da983898ae96e2a7d3d506600.tar.bz2 | |
sunxi: video: Add sun6i support
Besided needing the usual sun6i specific ahb1_reset bits poking, it turns out
that sun6i also needs the drc to be taken out of reset and clocked even though
it is in pass-through mode.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Anatolij Gustschin <agust@denx.de>
Diffstat (limited to 'drivers/video/sunxi_display.c')
| -rw-r--r-- | drivers/video/sunxi_display.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/video/sunxi_display.c b/drivers/video/sunxi_display.c index 82229d7..63945e0 100644 --- a/drivers/video/sunxi_display.c +++ b/drivers/video/sunxi_display.c @@ -38,6 +38,9 @@ static int sunxi_hdmi_hpd_detect(void) CCM_HDMI_CTRL_PLL3); /* Set ahb gating to pass */ +#ifdef CONFIG_MACH_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 */ @@ -55,6 +58,9 @@ static int sunxi_hdmi_hpd_detect(void) 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_MACH_SUN6I + clrbits_le32(&ccm->ahb_reset1_cfg, 1 << AHB_RESET_OFFSET_HDMI); +#endif clock_set_pll3(0); return 0; @@ -72,6 +78,11 @@ static void sunxi_composer_init(void) (struct sunxi_de_be_reg *)SUNXI_DE_BE0_BASE; int i; +#ifdef CONFIG_MACH_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); setbits_le32(&ccm->dram_clk_gate, 1 << CCM_DRAM_GATE_OFFSET_DE_BE0); @@ -171,7 +182,11 @@ static void sunxi_lcdc_init(void) (struct sunxi_lcdc_reg *)SUNXI_LCD0_BASE; /* Reset off */ +#ifdef CONFIG_MACH_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); @@ -226,6 +241,18 @@ static void sunxi_lcdc_mode_set(struct fb_videomode *mode, sunxi_lcdc_pll_set(mode->pixclock, clk_div, clk_double); } +#ifdef CONFIG_MACH_SUN6I +static void sunxi_drc_init(void) +{ + 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 */ + setbits_le32(&ccm->ahb_reset1_cfg, 1 << AHB_RESET_OFFSET_DRC0); + clock_set_de_mod_clock(&ccm->iep_drc0_clk_cfg, 300000000); +} +#endif + static void sunxi_hdmi_mode_set(struct fb_videomode *mode, int clk_div, int clk_double) { @@ -276,6 +303,9 @@ static void sunxi_engines_init(void) { sunxi_composer_init(); sunxi_lcdc_init(); +#ifdef CONFIG_MACH_SUN6I + sunxi_drc_init(); +#endif } static void sunxi_mode_set(struct fb_videomode *mode, unsigned int address) |