diff options
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/Kconfig | 6 | ||||
| -rw-r--r-- | drivers/video/am335x-fb.c | 567 | ||||
| -rw-r--r-- | drivers/video/am335x-fb.h | 16 | ||||
| -rw-r--r-- | drivers/video/sunxi/sunxi_display.c | 4 |
4 files changed, 493 insertions, 100 deletions
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig index 4c93369702..7c5012a67f 100644 --- a/drivers/video/Kconfig +++ b/drivers/video/Kconfig @@ -473,6 +473,12 @@ config ATMEL_HLCD help HLCDC supports video output to an attached LCD panel. +config AM335X_LCD + bool "Enable AM335x video support" + depends on DM_VIDEO + help + Supports video output to an attached LCD panel. + config LOGICORE_DP_TX bool "Enable Logicore DP TX driver" depends on DISPLAY diff --git a/drivers/video/am335x-fb.c b/drivers/video/am335x-fb.c index 51c1af587f..eb5add2a20 100644 --- a/drivers/video/am335x-fb.c +++ b/drivers/video/am335x-fb.c @@ -2,6 +2,7 @@ /* * Copyright (C) 2013-2018 Hannes Schmelzer <oe5hpm@oevsv.at> * B&R Industrial Automation GmbH - http://www.br-automation.com + * Copyright (C) 2020 Dario Binacchi <dariobin@libero.it> * * minimal framebuffer driver for TI's AM335x SoC to be compatible with * Wolfgang Denk's LCD-Framework (CONFIG_LCD, common/lcd.c) @@ -11,61 +12,69 @@ * - starts output DMA from gd->fb_base buffer */ #include <common.h> +#include <dm.h> #include <asm/io.h> #include <asm/arch/hardware.h> #include <asm/arch/omap.h> #include <asm/arch/clock.h> #include <asm/arch/sys_proto.h> +#include <asm/utils.h> +#include <linux/err.h> #include <lcd.h> +#include <video.h> #include "am335x-fb.h" -#if !defined(LCD_CNTL_BASE) -#error "hw-base address of LCD-Controller (LCD_CNTL_BASE) not defined!" -#endif - #define LCDC_FMAX 200000000 /* LCD Control Register */ -#define LCD_CLK_DIVISOR(x) ((x) << 8) -#define LCD_RASTER_MODE 0x01 +#define LCDC_CTRL_CLK_DIVISOR_MASK GENMASK(15, 8) +#define LCDC_CTRL_RASTER_MODE BIT(0) +#define LCDC_CTRL_CLK_DIVISOR(x) (((x) & GENMASK(7, 0)) << 8) /* LCD Clock Enable Register */ -#define LCD_CORECLKEN (0x01 << 0) -#define LCD_LIDDCLKEN (0x01 << 1) -#define LCD_DMACLKEN (0x01 << 2) +#define LCDC_CLKC_ENABLE_CORECLKEN BIT(0) +#define LCDC_CLKC_ENABLE_LIDDCLKEN BIT(1) +#define LCDC_CLKC_ENABLE_DMACLKEN BIT(2) /* LCD DMA Control Register */ -#define LCD_DMA_BURST_SIZE(x) ((x) << 4) -#define LCD_DMA_BURST_1 0x0 -#define LCD_DMA_BURST_2 0x1 -#define LCD_DMA_BURST_4 0x2 -#define LCD_DMA_BURST_8 0x3 -#define LCD_DMA_BURST_16 0x4 +#define LCDC_DMA_CTRL_BURST_SIZE(x) (((x) & GENMASK(2, 0)) << 4) +#define LCDC_DMA_CTRL_BURST_1 0x0 +#define LCDC_DMA_CTRL_BURST_2 0x1 +#define LCDC_DMA_CTRL_BURST_4 0x2 +#define LCDC_DMA_CTRL_BURST_8 0x3 +#define LCDC_DMA_CTRL_BURST_16 0x4 +#define LCDC_DMA_CTRL_FIFO_TH(x) (((x) & GENMASK(2, 0)) << 8) /* LCD Timing_0 Register */ -#define LCD_HBPLSB(x) ((((x)-1) & 0xFF) << 24) -#define LCD_HFPLSB(x) ((((x)-1) & 0xFF) << 16) -#define LCD_HSWLSB(x) ((((x)-1) & 0x3F) << 10) -#define LCD_HORLSB(x) (((((x) >> 4)-1) & 0x3F) << 4) -#define LCD_HORMSB(x) (((((x) >> 4)-1) & 0x40) >> 4) +#define LCDC_RASTER_TIMING_0_HORMSB(x) ((((x) - 1) & BIT(10)) >> 7) +#define LCDC_RASTER_TIMING_0_HORLSB(x) (((((x) >> 4) - 1) & GENMASK(5, 0)) << 4) +#define LCDC_RASTER_TIMING_0_HSWLSB(x) ((((x) - 1) & GENMASK(5, 0)) << 10) +#define LCDC_RASTER_TIMING_0_HFPLSB(x) ((((x) - 1) & GENMASK(7, 0)) << 16) +#define LCDC_RASTER_TIMING_0_HBPLSB(x) ((((x) - 1) & GENMASK(7, 0)) << 24) /* LCD Timing_1 Register */ -#define LCD_VBP(x) ((x) << 24) -#define LCD_VFP(x) ((x) << 16) -#define LCD_VSW(x) (((x)-1) << 10) -#define LCD_VERLSB(x) (((x)-1) & 0x3FF) +#define LCDC_RASTER_TIMING_1_VERLSB(x) (((x) - 1) & GENMASK(9, 0)) +#define LCDC_RASTER_TIMING_1_VSW(x) ((((x) - 1) & GENMASK(5, 0)) << 10) +#define LCDC_RASTER_TIMING_1_VFP(x) (((x) & GENMASK(7, 0)) << 16) +#define LCDC_RASTER_TIMING_1_VBP(x) (((x) & GENMASK(7, 0)) << 24) /* LCD Timing_2 Register */ -#define LCD_HSWMSB(x) ((((x)-1) & 0x3C0) << 21) -#define LCD_VERMSB(x) ((((x)-1) & 0x400) << 16) -#define LCD_HBPMSB(x) ((((x)-1) & 0x300) >> 4) -#define LCD_HFPMSB(x) ((((x)-1) & 0x300) >> 8) -#define LCD_INVMASK(x) ((x) & 0x3F00000) +#define LCDC_RASTER_TIMING_2_HFPMSB(x) ((((x) - 1) & GENMASK(9, 8)) >> 8) +#define LCDC_RASTER_TIMING_2_HBPMSB(x) ((((x) - 1) & GENMASK(9, 8)) >> 4) +#define LCDC_RASTER_TIMING_2_ACB(x) (((x) & GENMASK(7, 0)) << 8) +#define LCDC_RASTER_TIMING_2_ACBI(x) (((x) & GENMASK(3, 0)) << 16) +#define LCDC_RASTER_TIMING_2_VSYNC_INVERT BIT(20) +#define LCDC_RASTER_TIMING_2_HSYNC_INVERT BIT(21) +#define LCDC_RASTER_TIMING_2_PXCLK_INVERT BIT(22) +#define LCDC_RASTER_TIMING_2_DE_INVERT BIT(23) +#define LCDC_RASTER_TIMING_2_HSVS_RISEFALL BIT(24) +#define LCDC_RASTER_TIMING_2_HSVS_CONTROL BIT(25) +#define LCDC_RASTER_TIMING_2_VERMSB(x) ((((x) - 1) & BIT(10)) << 16) +#define LCDC_RASTER_TIMING_2_HSWMSB(x) ((((x) - 1) & GENMASK(9, 6)) << 21) /* LCD Raster Ctrl Register */ -#define LCD_TFT_24BPP_MODE (1 << 25) -#define LCD_TFT_24BPP_UNPACK (1 << 26) -#define LCD_PALMODE_RAWDATA (0x02 << 20) -#define LCD_TFT_MODE (0x01 << 7) -#define LCD_RASTER_ENABLE (0x01 << 0) - - -/* Macro definitions */ -#define FBSIZE(x) ((x->hactive * x->vactive * x->bpp) >> 3) +#define LCDC_RASTER_CTRL_ENABLE BIT(0) +#define LCDC_RASTER_CTRL_TFT_MODE BIT(7) +#define LCDC_RASTER_CTRL_DATA_ORDER BIT(8) +#define LCDC_RASTER_CTRL_REQDLY(x) (((x) & GENMASK(7, 0)) << 12) +#define LCDC_RASTER_CTRL_PALMODE_RAWDATA (0x02 << 20) +#define LCDC_RASTER_CTRL_TFT_ALT_ENABLE BIT(23) +#define LCDC_RASTER_CTRL_TFT_24BPP_MODE BIT(25) +#define LCDC_RASTER_CTRL_TFT_24BPP_UNPACK BIT(26) struct am335x_lcdhw { unsigned int pid; /* 0x00 */ @@ -99,10 +108,106 @@ struct am335x_lcdhw { unsigned int clkc_reset; /* 0x70 */ }; -static struct am335x_lcdhw *lcdhw = (void *)LCD_CNTL_BASE; +struct dpll_data { + unsigned long rounded_rate; + u16 rounded_m; + u8 rounded_n; + u8 rounded_div; +}; DECLARE_GLOBAL_DATA_PTR; +/** + * am335x_dpll_round_rate() - Round a target rate for an OMAP DPLL + * + * @dpll_data: struct dpll_data pointer for the DPLL + * @rate: New DPLL clock rate + * @return rounded rate and the computed m, n and div values in the dpll_data + * structure, or -ve error code. + */ +static ulong am335x_dpll_round_rate(struct dpll_data *dd, ulong rate) +{ + unsigned int m, n, d; + unsigned long rounded_rate; + int err, err_r; + + dd->rounded_rate = -EFAULT; + err = rate; + err_r = err; + + for (d = 2; err && d < 255; d++) { + for (m = 2; m < 2047; m++) { + if ((V_OSCK * m) < (rate * d)) + continue; + + n = (V_OSCK * m) / (rate * d); + if (n > 127) + break; + + if (((V_OSCK * m) / n) > LCDC_FMAX) + break; + + rounded_rate = (V_OSCK * m) / n / d; + err = abs(rounded_rate - rate); + if (err < err_r) { + err_r = err; + dd->rounded_rate = rounded_rate; + dd->rounded_m = m; + dd->rounded_n = n; + dd->rounded_div = d; + if (err == 0) + break; + } + } + } + + debug("DPLL display: best error %d Hz (M %d, N %d, DIV %d)\n", + err_r, dd->rounded_m, dd->rounded_n, dd->rounded_div); + + return dd->rounded_rate; +} + +/** + * am335x_fb_set_pixel_clk_rate() - Set pixel clock rate. + * + * @am335x_lcdhw: Base address of the LCD controller registers. + * @rate: New clock rate in Hz. + * @return new rate, or -ve error code. + */ +static ulong am335x_fb_set_pixel_clk_rate(struct am335x_lcdhw *regs, ulong rate) +{ + struct dpll_params dpll_disp = { 1, 0, 1, -1, -1, -1, -1 }; + struct dpll_data dd; + ulong round_rate; + u32 reg; + + round_rate = am335x_dpll_round_rate(&dd, rate); + if (IS_ERR_VALUE(round_rate)) + return round_rate; + + dpll_disp.m = dd.rounded_m; + dpll_disp.n = dd.rounded_n; + do_setup_dpll(&dpll_disp_regs, &dpll_disp); + + reg = readl(®s->ctrl) & ~LCDC_CTRL_CLK_DIVISOR_MASK; + reg |= LCDC_CTRL_CLK_DIVISOR(dd.rounded_div); + writel(reg, ®s->ctrl); + return round_rate; +} + +#if !CONFIG_IS_ENABLED(DM_VIDEO) + +#if !defined(LCD_CNTL_BASE) +#error "hw-base address of LCD-Controller (LCD_CNTL_BASE) not defined!" +#endif + +/* Macro definitions */ +#define FBSIZE(x) (((x)->hactive * (x)->vactive * (x)->bpp) >> 3) + +#define LCDC_RASTER_TIMING_2_INVMASK(x) ((x) & GENMASK(25, 20)) + +static struct am335x_lcdhw *lcdhw = (void *)LCD_CNTL_BASE; + int lcd_get_size(int *line_length) { *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8; @@ -112,11 +217,9 @@ int lcd_get_size(int *line_length) int am335xfb_init(struct am335x_lcdpanel *panel) { u32 raster_ctrl = 0; - struct cm_dpll *const cmdpll = (struct cm_dpll *)CM_DPLL; - struct dpll_params dpll_disp = { 1, 0, 1, -1, -1, -1, -1 }; - unsigned int m, n, d, best_d = 2; - int err = 0, err_r = 0; + ulong rate; + u32 reg; if (gd->fb_base == 0) { printf("ERROR: no valid fb_base stored in GLOBAL_DATA_PTR!\n"); @@ -132,10 +235,10 @@ int am335xfb_init(struct am335x_lcdpanel *panel) case 16: break; case 32: - raster_ctrl |= LCD_TFT_24BPP_UNPACK; + raster_ctrl |= LCDC_RASTER_CTRL_TFT_24BPP_UNPACK; /* fallthrough */ case 24: - raster_ctrl |= LCD_TFT_24BPP_MODE; + raster_ctrl |= LCDC_RASTER_CTRL_TFT_24BPP_MODE; break; default: pr_err("am335x-fb: invalid bpp value: %d\n", panel->bpp); @@ -157,32 +260,9 @@ int am335xfb_init(struct am335x_lcdpanel *panel) debug("using frambuffer at 0x%08x with size %d.\n", (unsigned int)gd->fb_base, FBSIZE(panel)); - /* setup display pll for requested clock frequency */ - err = panel->pxl_clk; - err_r = err; - - for (d = 2; d < 255; d++) { - for (m = 2; m < 2047; m++) { - if ((V_OSCK * m) < (panel->pxl_clk * d)) - continue; - n = (V_OSCK * m) / (panel->pxl_clk * d); - if (n > 127) - break; - if (((V_OSCK * m) / n) > LCDC_FMAX) - break; - - err = abs((V_OSCK * m) / n / d - panel->pxl_clk); - if (err < err_r) { - err_r = err; - dpll_disp.m = m; - dpll_disp.n = n; - best_d = d; - } - } - } - debug("%s: PLL: best error %d Hz (M %d, N %d, DISP %d)\n", - __func__, err_r, dpll_disp.m, dpll_disp.n, best_d); - do_setup_dpll(&dpll_disp_regs, &dpll_disp); + rate = am335x_fb_set_pixel_clk_rate(lcdhw, panel->pxl_clk); + if (IS_ERR_VALUE(rate)) + return rate; /* clock source for LCDC from dispPLL M2 */ writel(0x0, &cmdpll->clklcdcpixelclk); @@ -199,37 +279,340 @@ int am335xfb_init(struct am335x_lcdpanel *panel) debug("am335x-fb: wait for stable power ...\n"); mdelay(panel->pup_delay); - lcdhw->clkc_enable = LCD_CORECLKEN | LCD_LIDDCLKEN | LCD_DMACLKEN; + lcdhw->clkc_enable = LCDC_CLKC_ENABLE_CORECLKEN | + LCDC_CLKC_ENABLE_LIDDCLKEN | LCDC_CLKC_ENABLE_DMACLKEN; lcdhw->raster_ctrl = 0; - lcdhw->ctrl = LCD_CLK_DIVISOR(best_d) | LCD_RASTER_MODE; + + reg = lcdhw->ctrl & LCDC_CTRL_CLK_DIVISOR_MASK; + reg |= LCDC_CTRL_RASTER_MODE; + lcdhw->ctrl = reg; + lcdhw->lcddma_fb0_base = gd->fb_base; lcdhw->lcddma_fb0_ceiling = gd->fb_base + FBSIZE(panel); lcdhw->lcddma_fb1_base = gd->fb_base; lcdhw->lcddma_fb1_ceiling = gd->fb_base + FBSIZE(panel); - lcdhw->lcddma_ctrl = LCD_DMA_BURST_SIZE(LCD_DMA_BURST_16); - - lcdhw->raster_timing0 = LCD_HORLSB(panel->hactive) | - LCD_HORMSB(panel->hactive) | - LCD_HFPLSB(panel->hfp) | - LCD_HBPLSB(panel->hbp) | - LCD_HSWLSB(panel->hsw); - lcdhw->raster_timing1 = LCD_VBP(panel->vbp) | - LCD_VFP(panel->vfp) | - LCD_VSW(panel->vsw) | - LCD_VERLSB(panel->vactive); - lcdhw->raster_timing2 = LCD_HSWMSB(panel->hsw) | - LCD_VERMSB(panel->vactive) | - LCD_INVMASK(panel->pol) | - LCD_HBPMSB(panel->hbp) | - LCD_HFPMSB(panel->hfp) | + lcdhw->lcddma_ctrl = LCDC_DMA_CTRL_BURST_SIZE(LCDC_DMA_CTRL_BURST_16); + + lcdhw->raster_timing0 = LCDC_RASTER_TIMING_0_HORLSB(panel->hactive) | + LCDC_RASTER_TIMING_0_HORMSB(panel->hactive) | + LCDC_RASTER_TIMING_0_HFPLSB(panel->hfp) | + LCDC_RASTER_TIMING_0_HBPLSB(panel->hbp) | + LCDC_RASTER_TIMING_0_HSWLSB(panel->hsw); + lcdhw->raster_timing1 = LCDC_RASTER_TIMING_1_VBP(panel->vbp) | + LCDC_RASTER_TIMING_1_VFP(panel->vfp) | + LCDC_RASTER_TIMING_1_VSW(panel->vsw) | + LCDC_RASTER_TIMING_1_VERLSB(panel->vactive); + lcdhw->raster_timing2 = LCDC_RASTER_TIMING_2_HSWMSB(panel->hsw) | + LCDC_RASTER_TIMING_2_VERMSB(panel->vactive) | + LCDC_RASTER_TIMING_2_INVMASK(panel->pol) | + LCDC_RASTER_TIMING_2_HBPMSB(panel->hbp) | + LCDC_RASTER_TIMING_2_HFPMSB(panel->hfp) | 0x0000FF00; /* clk cycles for ac-bias */ lcdhw->raster_ctrl = raster_ctrl | - LCD_PALMODE_RAWDATA | - LCD_TFT_MODE | - LCD_RASTER_ENABLE; + LCDC_RASTER_CTRL_PALMODE_RAWDATA | + LCDC_RASTER_CTRL_TFT_MODE | + LCDC_RASTER_CTRL_ENABLE; debug("am335x-fb: waiting picture to be stable.\n."); mdelay(panel->pon_delay); return 0; } + +#else /* CONFIG_DM_VIDEO */ + +#define FBSIZE(t, p) (((t)->hactive.typ * (t)->vactive.typ * (p)->bpp) >> 3) + +enum { + LCD_MAX_WIDTH = 2048, + LCD_MAX_HEIGHT = 2048, + LCD_MAX_LOG2_BPP = VIDEO_BPP32, +}; + +/** + * tilcdc_panel_info: Panel parameters + * + * @ac_bias: AC Bias Pin Frequency + * @ac_bias_intrpt: AC Bias Pin Transitions per Interrupt + * @dma_burst_sz: DMA burst size + * @bpp: Bits per pixel + * @fdd: FIFO DMA Request Delay + * @tft_alt_mode: TFT Alternative Signal Mapping (Only for active) + * @invert_pxl_clk: Invert pixel clock + * @sync_edge: Horizontal and Vertical Sync Edge: 0=rising 1=falling + * @sync_ctrl: Horizontal and Vertical Sync: Control: 0=ignore + * @raster_order: Raster Data Order Select: 1=Most-to-least 0=Least-to-most + * @fifo_th: DMA FIFO threshold + */ +struct tilcdc_panel_info { + u32 ac_bias; + u32 ac_bias_intrpt; + u32 dma_burst_sz; + u32 bpp; + u32 fdd; + bool tft_alt_mode; + bool invert_pxl_clk; + u32 sync_edge; + u32 sync_ctrl; + u32 raster_order; + u32 fifo_th; +}; + +struct am335x_fb_priv { + struct am335x_lcdhw *regs; + struct tilcdc_panel_info panel; + struct display_timing timing; +}; + +static int am335x_fb_remove(struct udevice *dev) +{ + struct video_uc_platdata *uc_plat = dev_get_uclass_platdata(dev); + + uc_plat->base -= 0x20; + uc_plat->size += 0x20; + return 0; +} + +static int am335x_fb_probe(struct udevice *dev) +{ + struct video_uc_platdata *uc_plat = dev_get_uclass_platdata(dev); + struct video_priv *uc_priv = dev_get_uclass_priv(dev); + struct am335x_fb_priv *priv = dev_get_priv(dev); + struct am335x_lcdhw *regs = priv->regs; + struct tilcdc_panel_info *panel = &priv->panel; + struct display_timing *timing = &priv->timing; + struct cm_dpll *const cmdpll = (struct cm_dpll *)CM_DPLL; + u32 reg; + + /* Before relocation we don't need to do anything */ + if (!(gd->flags & GD_FLG_RELOC)) + return 0; + + am335x_fb_set_pixel_clk_rate(regs, timing->pixelclock.typ); + + /* clock source for LCDC from dispPLL M2 */ + writel(0, &cmdpll->clklcdcpixelclk); + + /* palette default entry */ + memset((void *)uc_plat->base, 0, 0x20); + *(unsigned int *)uc_plat->base = 0x4000; + /* point fb behind palette */ + uc_plat->base += 0x20; + uc_plat->size -= 0x20; + + writel(LCDC_CLKC_ENABLE_CORECLKEN | LCDC_CLKC_ENABLE_LIDDCLKEN | + LCDC_CLKC_ENABLE_DMACLKEN, ®s->clkc_enable); + writel(0, ®s->raster_ctrl); + + reg = readl(®s->ctrl) & LCDC_CTRL_CLK_DIVISOR_MASK; + reg |= LCDC_CTRL_RASTER_MODE; + writel(reg, ®s->ctrl); + + writel(uc_plat->base, ®s->lcddma_fb0_base); + writel(uc_plat->base + FBSIZE(timing, panel), + ®s->lcddma_fb0_ceiling); + writel(uc_plat->base, ®s->lcddma_fb1_base); + writel(uc_plat->base + FBSIZE(timing, panel), + ®s->lcddma_fb1_ceiling); + + reg = LCDC_DMA_CTRL_FIFO_TH(panel->fifo_th); + switch (panel->dma_burst_sz) { + case 1: + reg |= LCDC_DMA_CTRL_BURST_SIZE(LCDC_DMA_CTRL_BURST_1); + break; + case 2: + reg |= LCDC_DMA_CTRL_BURST_SIZE(LCDC_DMA_CTRL_BURST_2); + break; + case 4: + reg |= LCDC_DMA_CTRL_BURST_SIZE(LCDC_DMA_CTRL_BURST_4); + break; + case 8: + reg |= LCDC_DMA_CTRL_BURST_SIZE(LCDC_DMA_CTRL_BURST_8); + break; + case 16: + reg |= LCDC_DMA_CTRL_BURST_SIZE(LCDC_DMA_CTRL_BURST_16); + break; + } + + writel(reg, ®s->lcddma_ctrl); + + writel(LCDC_RASTER_TIMING_0_HORLSB(timing->hactive.typ) | + LCDC_RASTER_TIMING_0_HORMSB(timing->hactive.typ) | + LCDC_RASTER_TIMING_0_HFPLSB(timing->hfront_porch.typ) | + LCDC_RASTER_TIMING_0_HBPLSB(timing->hback_porch.typ) | + LCDC_RASTER_TIMING_0_HSWLSB(timing->hsync_len.typ), + ®s->raster_timing0); + + writel(LCDC_RASTER_TIMING_1_VBP(timing->vback_porch.typ) | + LCDC_RASTER_TIMING_1_VFP(timing->vfront_porch.typ) | + LCDC_RASTER_TIMING_1_VSW(timing->vsync_len.typ) | + LCDC_RASTER_TIMING_1_VERLSB(timing->vactive.typ), + ®s->raster_timing1); + + reg = LCDC_RASTER_TIMING_2_ACB(panel->ac_bias) | + LCDC_RASTER_TIMING_2_ACBI(panel->ac_bias_intrpt) | + LCDC_RASTER_TIMING_2_HSWMSB(timing->hsync_len.typ) | + LCDC_RASTER_TIMING_2_VERMSB(timing->vactive.typ) | + LCDC_RASTER_TIMING_2_HBPMSB(timing->hback_porch.typ) | + LCDC_RASTER_TIMING_2_HFPMSB(timing->hfront_porch.typ); + + if (timing->flags & DISPLAY_FLAGS_VSYNC_LOW) + reg |= LCDC_RASTER_TIMING_2_VSYNC_INVERT; + + if (timing->flags & DISPLAY_FLAGS_HSYNC_LOW) + reg |= LCDC_RASTER_TIMING_2_HSYNC_INVERT; + + if (panel->invert_pxl_clk) + reg |= LCDC_RASTER_TIMING_2_PXCLK_INVERT; + + if (panel->sync_edge) + reg |= LCDC_RASTER_TIMING_2_HSVS_RISEFALL; + + if (panel->sync_ctrl) + reg |= LCDC_RASTER_TIMING_2_HSVS_CONTROL; + + writel(reg, ®s->raster_timing2); + + reg = LCDC_RASTER_CTRL_PALMODE_RAWDATA | LCDC_RASTER_CTRL_TFT_MODE | + LCDC_RASTER_CTRL_ENABLE | LCDC_RASTER_CTRL_REQDLY(panel->fdd); + + if (panel->tft_alt_mode) + reg |= LCDC_RASTER_CTRL_TFT_ALT_ENABLE; + + if (panel->bpp == 24) + reg |= LCDC_RASTER_CTRL_TFT_24BPP_MODE; + else if (panel->bpp == 32) + reg |= LCDC_RASTER_CTRL_TFT_24BPP_MODE | + LCDC_RASTER_CTRL_TFT_24BPP_UNPACK; + + if (panel->raster_order) + reg |= LCDC_RASTER_CTRL_DATA_ORDER; + + writel(reg, ®s->raster_ctrl); + + uc_priv->xsize = timing->hactive.typ; + uc_priv->ysize = timing->vactive.typ; + uc_priv->bpix = log_2_n_round_up(panel->bpp); + return 0; +} + +static int am335x_fb_ofdata_to_platdata(struct udevice *dev) +{ + struct am335x_fb_priv *priv = dev_get_priv(dev); + struct tilcdc_panel_info *panel = &priv->panel; + struct display_timing *timing = &priv->timing; + ofnode node; + int err; + + node = ofnode_by_compatible(ofnode_null(), "ti,am33xx-tilcdc"); + if (!ofnode_valid(node)) { + dev_err(dev, "missing 'ti,am33xx-tilcdc' node\n"); + return -ENXIO; + } + + priv->regs = (struct am335x_lcdhw *)ofnode_get_addr(node); + dev_dbg(dev, "LCD: base address=0x%x\n", (unsigned int)priv->regs); + + err = ofnode_decode_display_timing(dev_ofnode(dev), 0, timing); + if (err) { + dev_err(dev, "failed to get display timing\n"); + return err; + } + + if (timing->pixelclock.typ > (LCDC_FMAX / 2)) { + dev_err(dev, "invalid display clock-frequency: %d Hz\n", + timing->pixelclock.typ); + return -EINVAL; + } + + if (timing->hactive.typ > LCD_MAX_WIDTH) + timing->hactive.typ = LCD_MAX_WIDTH; + + if (timing->vactive.typ > LCD_MAX_HEIGHT) + timing->vactive.typ = LCD_MAX_HEIGHT; + + node = ofnode_find_subnode(dev_ofnode(dev), "panel-info"); + if (!ofnode_valid(node)) { + dev_err(dev, "missing 'panel-info' node\n"); + return -ENXIO; + } + + err |= ofnode_read_u32(node, "ac-bias", &panel->ac_bias); + err |= ofnode_read_u32(node, "ac-bias-intrpt", &panel->ac_bias_intrpt); + err |= ofnode_read_u32(node, "dma-burst-sz", &panel->dma_burst_sz); + err |= ofnode_read_u32(node, "bpp", &panel->bpp); + err |= ofnode_read_u32(node, "fdd", &panel->fdd); + err |= ofnode_read_u32(node, "sync-edge", &panel->sync_edge); + err |= ofnode_read_u32(node, "sync-ctrl", &panel->sync_ctrl); + err |= ofnode_read_u32(node, "raster-order", &panel->raster_order); + err |= ofnode_read_u32(node, "fifo-th", &panel->fifo_th); + if (err) { + dev_err(dev, "failed to get panel info\n"); + return err; + } + + switch (panel->bpp) { + case 16: + case 24: + case 32: + break; + default: + dev_err(dev, "invalid seting, bpp: %d\n", panel->bpp); + return -EINVAL; + } + + switch (panel->dma_burst_sz) { + case 1: + case 2: + case 4: + case 8: + case 16: + break; + default: + dev_err(dev, "invalid setting, dma-burst-sz: %d\n", + panel->dma_burst_sz); + return -EINVAL; + } + + /* optional */ + panel->tft_alt_mode = ofnode_read_bool(node, "tft-alt-mode"); + panel->invert_pxl_clk = ofnode_read_bool(node, "invert-pxl-clk"); + + dev_dbg(dev, "LCD: %dx%d, bpp=%d, clk=%d Hz\n", timing->hactive.typ, + timing->vactive.typ, panel->bpp, timing->pixelclock.typ); + dev_dbg(dev, " hbp=%d, hfp=%d, hsw=%d\n", timing->hback_porch.typ, + timing->hfront_porch.typ, timing->hsync_len.typ); + dev_dbg(dev, " vbp=%d, vfp=%d, vsw=%d\n", timing->vback_porch.typ, + timing->vfront_porch.typ, timing->vsync_len.typ); + + return 0; +} + +static int am335x_fb_bind(struct udevice *dev) +{ + struct video_uc_platdata *uc_plat = dev_get_uclass_platdata(dev); + + uc_plat->size = ((LCD_MAX_WIDTH * LCD_MAX_HEIGHT * + (1 << LCD_MAX_LOG2_BPP)) >> 3) + 0x20; + + dev_dbg(dev, "frame buffer size 0x%x\n", uc_plat->size); + return 0; +} + +static const struct udevice_id am335x_fb_ids[] = { + { .compatible = "ti,tilcdc,panel" }, + { } +}; + +U_BOOT_DRIVER(am335x_fb) = { + .name = "am335x_fb", + .id = UCLASS_VIDEO, + .of_match = am335x_fb_ids, + .bind = am335x_fb_bind, + .ofdata_to_platdata = am335x_fb_ofdata_to_platdata, + .probe = am335x_fb_probe, + .remove = am335x_fb_remove, + .priv_auto_alloc_size = sizeof(struct am335x_fb_priv), +}; + +#endif /* CONFIG_DM_VIDEO */ diff --git a/drivers/video/am335x-fb.h b/drivers/video/am335x-fb.h index f5883c02dd..c9f92bc389 100644 --- a/drivers/video/am335x-fb.h +++ b/drivers/video/am335x-fb.h @@ -7,7 +7,9 @@ #ifndef AM335X_FB_H #define AM335X_FB_H -#define HSVS_CONTROL (0x01 << 25) /* +#if !CONFIG_IS_ENABLED(DM_VIDEO) + +#define HSVS_CONTROL BIT(25) /* * 0 = lcd_lp and lcd_fp are driven on * opposite edges of pixel clock than * the lcd_pixel_o @@ -17,7 +19,7 @@ * Matrix displays the edge timing is * fixed */ -#define HSVS_RISEFALL (0x01 << 24) /* +#define HSVS_RISEFALL BIT(24) /* * 0 = lcd_lp and lcd_fp are driven on * the rising edge of pixel clock (bit * 25 must be set to 1) @@ -25,19 +27,19 @@ * the falling edge of pixel clock (bit * 25 must be set to 1) */ -#define DE_INVERT (0x01 << 23) /* +#define DE_INVERT BIT(23) /* * 0 = DE is low-active * 1 = DE is high-active */ -#define PXCLK_INVERT (0x01 << 22) /* +#define PXCLK_INVERT BIT(22) /* * 0 = pix-clk is high-active * 1 = pic-clk is low-active */ -#define HSYNC_INVERT (0x01 << 21) /* +#define HSYNC_INVERT BIT(21) /* * 0 = HSYNC is active high * 1 = HSYNC is avtive low */ -#define VSYNC_INVERT (0x01 << 20) /* +#define VSYNC_INVERT BIT(20) /* * 0 = VSYNC is active high * 1 = VSYNC is active low */ @@ -68,4 +70,6 @@ struct am335x_lcdpanel { int am335xfb_init(struct am335x_lcdpanel *panel); +#endif /* CONFIG_DM_VIDEO */ + #endif /* AM335X_FB_H */ diff --git a/drivers/video/sunxi/sunxi_display.c b/drivers/video/sunxi/sunxi_display.c index 31f0aa7ddc..4e1720ef7e 100644 --- a/drivers/video/sunxi/sunxi_display.c +++ b/drivers/video/sunxi/sunxi_display.c @@ -1014,7 +1014,6 @@ static void sunxi_mode_set(const struct ctfb_res_modes *mode, 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"; @@ -1023,8 +1022,9 @@ static const char *sunxi_get_mon_desc(enum sunxi_monitor monitor) 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"; + case sunxi_monitor_none: /* fall through */ + default: return "none"; } - return NULL; /* never reached */ } ulong board_get_usable_ram_top(ulong total_size) |