1 files changed, 85 insertions, 0 deletions
diff --git a/roms/u-boot/drivers/video/coreboot_fb.c b/roms/u-boot/drivers/video/coreboot_fb.c
new file mode 100644
index 00000000..56c35c18
--- /dev/null
+++ b/roms/u-boot/drivers/video/coreboot_fb.c
@@ -0,0 +1,85 @@
+/*
+ * coreboot Framebuffer driver.
+ *
+ * Copyright (C) 2011 The Chromium OS authors
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/arch/tables.h>
+#include <asm/arch/sysinfo.h>
+#include <video_fb.h>
+#include "videomodes.h"
+
+/*
+ * The Graphic Device
+ */
+GraphicDevice ctfb;
+
+static int parse_coreboot_table_fb(GraphicDevice *gdev)
+{
+	struct cb_framebuffer *fb = lib_sysinfo.framebuffer;
+
+	/* If there is no framebuffer structure, bail out and keep
+	 * running on the serial console.
+	 */
+	if (!fb)
+		return 0;
+
+	gdev->winSizeX = fb->x_resolution;
+	gdev->winSizeY = fb->y_resolution;
+
+	gdev->plnSizeX = fb->x_resolution;
+	gdev->plnSizeY = fb->y_resolution;
+
+	gdev->gdfBytesPP = fb->bits_per_pixel / 8;
+
+	switch (fb->bits_per_pixel) {
+	case 24:
+		gdev->gdfIndex = GDF_32BIT_X888RGB;
+		break;
+	case 16:
+		gdev->gdfIndex = GDF_16BIT_565RGB;
+		break;
+	default:
+		gdev->gdfIndex = GDF__8BIT_INDEX;
+		break;
+	}
+
+	gdev->isaBase = CONFIG_SYS_ISA_IO_BASE_ADDRESS;
+	gdev->pciBase = (unsigned int)fb->physical_address;
+
+	gdev->frameAdrs = (unsigned int)fb->physical_address;
+	gdev->memSize = fb->bytes_per_line * fb->y_resolution;
+
+	gdev->vprBase = (unsigned int)fb->physical_address;
+	gdev->cprBase = (unsigned int)fb->physical_address;
+
+	return 1;
+}
+
+void *video_hw_init(void)
+{
+	GraphicDevice *gdev = &ctfb;
+	int bits_per_pixel;
+
+	printf("Video: ");
+
+	if (!parse_coreboot_table_fb(gdev)) {
+		printf("No video mode configured in coreboot!\n");
+		return NULL;
+	}
+
+	bits_per_pixel = gdev->gdfBytesPP * 8;
+
+	/* fill in Graphic device struct */
+	sprintf(gdev->modeIdent, "%dx%dx%d", gdev->winSizeX, gdev->winSizeY,
+		 bits_per_pixel);
+	printf("%s\n", gdev->modeIdent);
+
+	memset((void *)gdev->pciBase, 0,
+		gdev->winSizeX * gdev->winSizeY * gdev->gdfBytesPP);
+
+	return (void *)gdev;
+}