uboot-s3c2410_fb.patch

Uboot常用的移植patches, 方便定制移植到s3c2440

Index: u-boot/drivers/video/Makefile
===================================================================
--- u-boot.orig/drivers/video/Makefile
+++ u-boot/drivers/video/Makefile
@@ -29,6 +29,7 @@
 COBJS-y += cfb_console.o
 COBJS-y += ct69000.o
 COBJS-y += mb862xx.o
+COBJS-y += s3c2410_fb.o
 COBJS-y += sed13806.o
 COBJS-y += sed156x.o
 COBJS-y += sm501.o
Index: u-boot/drivers/video/s3c2410_fb.c
===================================================================
--- /dev/null
+++ u-boot/drivers/video/s3c2410_fb.c
@@ -0,0 +1,166 @@
+/*
+ * (C) Copyright 2006 by OpenMoko, Inc.
+ * Author: Harald Welte <[e-mail]>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+
+#if defined(CONFIG_VIDEO_S3C2410)
+
+#include <video_fb.h>
+#include "videomodes.h"
+#include <s3c2410.h>
+/*
+ * Export Graphic Device
+ */
+GraphicDevice smi;
+
+#define VIDEO_MEM_SIZE	0x200000	/* 480x640x16bit = 614400 bytes */
+
+extern void board_video_init(GraphicDevice *pGD);
+
+/*******************************************************************************
+ *
+ * Init video chip with common Linux graphic modes (lilo)
+ */
+void *video_hw_init (void)
+{
+	S3C24X0_LCD * const lcd = S3C24X0_GetBase_LCD();
+	GraphicDevice *pGD = (GraphicDevice *)&smi;
+	int videomode;
+	unsigned long t1, hsynch, vsynch;
+	char *penv;
+	int tmp, i, bits_per_pixel;
+	struct ctfb_res_modes *res_mode;
+	struct ctfb_res_modes var_mode;
+	unsigned char videoout;
+
+	/* Search for video chip */
+	printf("Video: ");
+
+	tmp = 0;
+
+	videomode = CFG_DEFAULT_VIDEO_MODE;
+	/* get video mode via environment */
+	if ((penv = getenv ("videomode")) != NULL) {
+		/* deceide if it is a string */
+		if (penv[0] <= '9') {
+			videomode = (int) simple_strtoul (penv, NULL, 16);
+			tmp = 1;
+		}
+	} else {
+		tmp = 1;
+	}
+	if (tmp) {
+		/* parameter are vesa modes */
+		/* search params */
+		for (i = 0; i < VESA_MODES_COUNT; i++) {
+			if (vesa_modes[i].vesanr == videomode)
+				break;
+		}
+		if (i == VESA_MODES_COUNT) {
+			printf ("no VESA Mode found, switching to mode 0x%x ", CFG_DEFAULT_VIDEO_MODE);
+			i = 0;
+		}
+		res_mode =
+			(struct ctfb_res_modes *) &res_mode_init[vesa_modes[i].
+								 resindex];
+		bits_per_pixel = vesa_modes[i].bits_per_pixel;
+	} else {
+
+		res_mode = (struct ctfb_res_modes *) &var_mode;
+		bits_per_pixel = video_get_params (res_mode, penv);
+	}
+
+	/* calculate hsynch and vsynch freq (info only) */
+	t1 = (res_mode->left_margin + res_mode->xres +
+	      res_mode->right_margin + res_mode->hsync_len) / 8;
+	t1 *= 8;
+	t1 *= res_mode->pixclock;
+	t1 /= 1000;
+	hsynch = 1000000000L / t1;
+	t1 *=
+		(res_mode->upper_margin + res_mode->yres +
+		 res_mode->lower_margin + res_mode->vsync_len);
+	t1 /= 1000;
+	vsynch = 1000000000L / t1;
+
+	/* fill in Graphic device struct */
+	sprintf (pGD->modeIdent, "%dx%dx%d %ldkHz %ldHz", res_mode->xres,
+		 res_mode->yres, bits_per_pixel, (hsynch / 1000),
+		 (vsynch / 1000));
+	printf ("%s\n", pGD->modeIdent);
+	pGD->winSizeX = res_mode->xres;
+	pGD->winSizeY = res_mode->yres;
+	pGD->plnSizeX = res_mode->xres;
+	pGD->plnSizeY = res_mode->yres;
+	switch (bits_per_pixel) {
+	case 8:
+		pGD->gdfBytesPP = 1;
+		pGD->gdfIndex = GDF__8BIT_INDEX;
+		break;
+	case 15:
+		pGD->gdfBytesPP = 2;
+		pGD->gdfIndex = GDF_15BIT_555RGB;
+		break;
+	case 16:
+		pGD->gdfBytesPP = 2;
+		pGD->gdfIndex = GDF_16BIT_565RGB;
+		break;
+	case 24:
+		pGD->gdfBytesPP = 3;
+		pGD->gdfIndex = GDF_24BIT_888RGB;
+		break;
+	}
+
+	/* statically configure settings */
+	pGD->winSizeX = pGD->plnSizeX = 480;
+	pGD->winSizeY = pGD->plnSizeY = 640;
+	pGD->gdfBytesPP = 2;
+	pGD->gdfIndex = GDF_16BIT_565RGB;
+
+	pGD->frameAdrs = LCD_VIDEO_ADDR;
+	pGD->memSize = VIDEO_MEM_SIZE;
+
+	board_video_init(pGD);
+
+	lcd->LCDSADDR1 = pGD->frameAdrs >> 1;
+
+	/* This marks the end of the frame buffer. */
+	lcd->LCDSADDR2 = (lcd->LCDSADDR1&0x1fffff) + (pGD->winSizeX+0) * pGD->winSizeY;
+	lcd->LCDSADDR3 = pGD->winSizeX;
+
+	/* Clear video memory */
+	memset(pGD->frameAdrs, 0, pGD->memSize);
+
+	/* Enable  Display  */
+	lcd->LCDCON1 |= 0x01;	/* ENVID = 1 */
+
+	return ((void*)&smi);
+}
+
+void
+video_set_lut (unsigned int index,	/* color number */
+	       unsigned char r,	/* red */
+	       unsigned char g,	/* green */
+	       unsigned char b	/* blue */
+    )
+{
+}
+
+#endif /* CONFIG_VIDEO_S3C2410 */