基於S3C2440的內核3.10.17移植－－（W35i）LCD應用

要想使LCD工作，需要修改arch/arm/mach-s3c24xx/mach-mini2440.c文件中的相關內容

vim arch/arm/mach-s3c24xx/mach-mini2440.c

搜索mini2440_lcd_cfg

在132行找到該結構體數組

在175行找到有如下注釋：

/* mini2440 + 3.5" TFT (LCD-W35i, LQ035Q1DG06 type) + touchscreen*/

這個就是我們所需要的參數

static struct s3c2410fb_display mini2440_lcd_cfg[] __initdata = {
	[0] = {	/* mini2440 + 3.5" TFT + touchscreen */
		_LCD_DECLARE(
			7,			/* The 3.5 is quite fast */
			240, 21, 38, 6, 	/* x timing */


			320, 4, 4, 2,		/* y timing */
			//320, 68, 66, 4,
			//240, 4, 4, 9,
			60),			/* refresh rate */
		.lcdcon5	= (S3C2410_LCDCON5_FRM565 |
				   S3C2410_LCDCON5_INVVLINE |
				   S3C2410_LCDCON5_INVVFRAME |
				   S3C2410_LCDCON5_INVVDEN |
				   S3C2410_LCDCON5_PWREN),
	},
	[1] = { /* mini2440 + 7" TFT + touchscreen */
		_LCD_DECLARE(
			10,			/* the 7" runs slower */
			800, 40, 40, 48, 	/* x timing */
			480, 29, 3, 3,		/* y timing */
			50),			/* refresh rate */
		.lcdcon5	= (S3C2410_LCDCON5_FRM565 |
				   S3C2410_LCDCON5_INVVLINE |
				   S3C2410_LCDCON5_INVVFRAME |
				   S3C2410_LCDCON5_PWREN),
	},
	/* The VGA shield can outout at several resolutions. All share 
	 * the same timings, however, anything smaller than 1024x768
	 * will only be displayed in the top left corner of a 1024x768
	 * XGA output unless you add optional dip switches to the shield.
	 * Therefore timings for other resolutions have been omitted here.
	 */
	[2] = {
		_LCD_DECLARE(
			10,
			1024, 1, 2, 2,		/* y timing */
			768, 200, 16, 16, 	/* x timing */
			24),	/* refresh rate, maximum stable,
				 tested with the FPGA shield */
		.lcdcon5	= (S3C2410_LCDCON5_FRM565 |
				   S3C2410_LCDCON5_HWSWP),
	},
	/* mini2440 + 3.5" TFT (LCD-W35i, LQ035Q1DG06 type) + touchscreen*/
	[3] = {
		_LCD_DECLARE(
			/* clock */
			7,
			/* xres, margin_right, margin_left, hsync */
			320, 68, 66, 4,
			/* yres, margin_top, margin_bottom, vsync */
			240, 4, 4, 9,
			/* refresh rate */
			60),
		.lcdcon5	= (S3C2410_LCDCON5_FRM565 |
				   S3C2410_LCDCON5_INVVDEN |
				   S3C2410_LCDCON5_INVVFRAME |
				   S3C2410_LCDCON5_INVVLINE |
				   S3C2410_LCDCON5_INVVCLK |
				   S3C2410_LCDCON5_HWSWP),
	},
};

然後搜索關鍵字 features
在544行找到static char mini2440_features_str[12] __initdata = "0tb";

將其中的0tb改成3tb，即上面結構體數組中的3

保存退出

屏幕即可正常顯示