GraphicDevice graphic_device;
enum sunxi_monitor monitor;
unsigned int depth;
+ unsigned int fb_size;
} sunxi_display;
#ifdef CONFIG_VIDEO_HDMI
return (delay > 30) ? 30 : delay;
}
-static void sunxi_lcdc_tcon0_mode_set(const struct ctfb_res_modes *mode)
+static void sunxi_lcdc_tcon0_mode_set(const struct ctfb_res_modes *mode,
+ bool for_ext_vga_dac)
{
struct sunxi_lcdc_reg * const lcdc =
(struct sunxi_lcdc_reg *)SUNXI_LCD0_BASE;
val |= SUNXI_LCDC_TCON_HSYNC_MASK;
if (!(mode->sync & FB_SYNC_VERT_HIGH_ACT))
val |= SUNXI_LCDC_TCON_VSYNC_MASK;
+
+#ifdef CONFIG_VIDEO_VGA_VIA_LCD_FORCE_SYNC_ACTIVE_HIGH
+ if (for_ext_vga_dac)
+ val = 0;
+#endif
writel(val, &lcdc->tcon0_io_polarity);
writel(0, &lcdc->tcon0_io_tristate);
hitachi_tx18d42vm_init();
}
sunxi_composer_mode_set(mode, address);
- sunxi_lcdc_tcon0_mode_set(mode);
+ sunxi_lcdc_tcon0_mode_set(mode, false);
sunxi_composer_enable();
sunxi_lcdc_enable();
#ifdef CONFIG_VIDEO_LCD_SSD2828
sunxi_vga_enable();
#elif defined CONFIG_VIDEO_VGA_VIA_LCD
sunxi_composer_mode_set(mode, address);
- sunxi_lcdc_tcon0_mode_set(mode);
+ sunxi_lcdc_tcon0_mode_set(mode, true);
sunxi_composer_enable();
sunxi_lcdc_enable();
sunxi_vga_external_dac_enable();
return NULL; /* never reached */
}
+ulong board_get_usable_ram_top(ulong total_size)
+{
+ return gd->ram_top - CONFIG_SUNXI_MAX_FB_SIZE;
+}
+
void *video_hw_init(void)
{
static GraphicDevice *graphic_device = &sunxi_display.graphic_device;
memset(&sunxi_display, 0, sizeof(struct sunxi_display));
- printf("Reserved %dkB of RAM for Framebuffer.\n",
- CONFIG_SUNXI_FB_SIZE >> 10);
- gd->fb_base = gd->ram_top;
-
video_get_ctfb_res_modes(RES_MODE_1024x768, 24, &mode,
&sunxi_display.depth, &options);
#ifdef CONFIG_VIDEO_HDMI
mode->yres, sunxi_get_mon_desc(sunxi_display.monitor));
}
+ sunxi_display.fb_size =
+ (mode->xres * mode->yres * 4 + 0xfff) & ~0xfff;
+ if (sunxi_display.fb_size > CONFIG_SUNXI_MAX_FB_SIZE) {
+ printf("Error need %dkB for fb, but only %dkB is reserved\n",
+ sunxi_display.fb_size >> 10,
+ CONFIG_SUNXI_MAX_FB_SIZE >> 10);
+ return NULL;
+ }
+
+ gd->fb_base = gd->bd->bi_dram[0].start +
+ gd->bd->bi_dram[0].size - sunxi_display.fb_size;
sunxi_engines_init();
sunxi_mode_set(mode, gd->fb_base - CONFIG_SYS_SDRAM_BASE);
{
static GraphicDevice *graphic_device = &sunxi_display.graphic_device;
int offset, ret;
+ u64 start, size;
const char *pipeline = NULL;
#ifdef CONFIG_MACH_SUN4I
return 0; /* Keep older kernels working */
}
+ /*
+ * Do not report the framebuffer as free RAM to the OS, note we cannot
+ * use fdt_add_mem_rsv() here, because then it is still seen as RAM,
+ * and e.g. Linux refuses to iomap RAM on ARM, see:
+ * linux/arch/arm/mm/ioremap.c around line 301.
+ */
+ start = gd->bd->bi_dram[0].start;
+ size = gd->bd->bi_dram[0].size - sunxi_display.fb_size;
+ ret = fdt_fixup_memory_banks(blob, &start, &size, 1);
+ if (ret) {
+ eprintf("Cannot setup simplefb: Error reserving memory\n");
+ return ret;
+ }
+
ret = fdt_setup_simplefb_node(blob, offset, gd->fb_base,
graphic_device->winSizeX, graphic_device->winSizeY,
graphic_device->winSizeX * graphic_device->gdfBytesPP,