分析原因是：
时序不正确，也即lcddrv.h 和 lcddrv.c文件 不正确，需要修改。代码如下：

lcddrv.h：

#ifndef __LCDDRV_H__
#define __LCDDRV_H__

#include

#define LOWER21BITS(n)  ((n) & 0x1fffff)

#define BPPMODE_1BPP    0x8
#define BPPMODE_2BPP    0x9
#define BPPMODE_4BPP    0xA
#define BPPMODE_8BPP    0xB
#define BPPMODE_16BPP   0xC
#define BPPMODE_24BPP   0xD

#define LCDTYPE_TFT     0x3

#define ENVID_DISABLE   0
#define ENVID_ENABLE    1

#define FORMAT8BPP_5551 0
#define FORMAT8BPP_565  1

#define HSYNC_NORM      0
#define HSYNC_INV       1

#define VSYNC_NORM      0
#define VSYNC_INV       1

#define BSWP            1
#define HWSWP           1

//TFT LCD Panel(240*320)
#define MODE_TFT_1BIT_240320     (0x4101)
#define MODE_TFT_8BIT_240320   (0x4102)
#define MODE_TFT_16BIT_240320    (0x4104)
#define MODE_TFT_24BIT_240320    (0x4108)

//TFT 240320
#define LCD_XSIZE_TFT_240320  (240) 
#define LCD_YSIZE_TFT_240320  (320)

//TFT 240320
#define HOZVAL_TFT_240320 (LCD_XSIZE_TFT_240320-1)
#define LINEVAL_TFT_240320 (LCD_YSIZE_TFT_240320-1)

#define CLKVAL_TFT_240320 (4)
// 60hz @133Mhz
// (9) 60hz @100Mhz

//Timing parameter for LTS350Q1(SAMSUNG)
#define VBPD_240320  ((6-1)&0xff)
#define VFPD_240320  ((4-1)&0xff)
#define VSPW_240320  ((2-1) &0x3f)
#define HBPD_240320  ((11-1)&0x7f)
#define HFPD_240320  ((2-1)&0xff)
#define HSPW_240320  ((1-1)&0xff)

//TFT LCD Panel(640*480)
#define MODE_TFT_1BIT_640480     (0x4201)
#define MODE_TFT_8BIT_640480     (0x4202)
#define MODE_TFT_16BIT_640480    (0x4204)
#define MODE_TFT_24BIT_640480    (0x4208)

//TFT 640480
#define LCD_XSIZE_TFT_640480  (640) 
#define LCD_YSIZE_TFT_640480  (480)

//TFT640480
#define HOZVAL_TFT_640480 (LCD_XSIZE_TFT_640480-1)
#define LINEVAL_TFT_640480 (LCD_YSIZE_TFT_640480-1)

//Timing parameter for V16C6448AB(PRIME VIEW)
#define VBPD_640480  ((33-1)&0xff)
#define VFPD_640480  ((10-1)&0xff)
#define VSPW_640480  ((2-1) &0x3f)
#define HBPD_640480  ((48-1)&0x7f)
#define HFPD_640480  ((16-1)&0xff)
#define HSPW_640480  ((96-1)&0xff)

#define CLKVAL_TFT_640480  (1)
    //53.5hz @90Mhz
    //VSYNC,HSYNC should be inverted
    //HBPD=47VCLK,HFPD=15VCLK,HSPW=95VCLK
    //VBPD=32HSYNC,VFPD=9HSYNC,VSPW=1HSYNC

#define LCDFRAMEBUFFER 0x30400000

void Lcd_Port_Init(void);

void Tft_Lcd_Init(int type);

void Lcd_Palette8Bit_Init(void);

void Lcd_EnvidOnOff(int onoff);

void Lcd_PowerEnable(int invpwren, int pwren);

void ClearScrWithTmpPlt(UINT32 color);

void DisableTmpPlt(void);

void ChangePalette(UINT32 color);

#endif

------------------------------------------------------------------

lcddrv.c文件：

#include
#include "s3c24xx.h"
#include "lcddrv.h"

unsigned int fb_base_addr;
unsigned int bpp;
unsigned int xsize;
unsigned int ysize;

static const unsigned short DEMO256pal[]={
    0x0b5e,0xce9a,0xffd9,0x9d99,0xb63a,0xae7c,0xdd71,0x6c57,0xfd4d,0x00ae,0x9c4d,0xb5f8,0xad96,0x0131,0x0176,0xefff,0xcedd,0x9556,0xe4bf,0x00b6,0x22b7,0x002b,0x89de,0x002c,0x57df,0xab5f,0x3031,0x14bf,0x797e,0x5391,0x93ab,0x7239,0x7453,0xafdf,0x71b9,0x8c92,0x014d,0x302e,0x5175,0x0029,0x0969,0x004e,0x2a6d,0x0021,0x3155,0x4b6e,0xd677,0xf6b6,0x9b5f,0x4bb5,0xffd5,0x0027,0xdfdf,0x74d8,0x1256,0x6bcd,0x9b08,0x2ab2,0xbd72,0x84b5,0xfe52,0xd4ad,0x00ad,0xfffc,0x422b,0x73b0,0x0024,0x5246,0x8e5e,0x28b3,0x0050,0x3b52,0x2a4a,0x3a74,0x8559,0x3356,0x1251,0x9abf,0x4034,0x40b1,
    0x8cb9,0x00b3,0x5c55,0xdf3d,0x61b7,0x1f5f,0x00d9,0x4c59,0x0926,0xac3f,0x925f,0x85bc,0x29d2,0xc73f,0xef5c,0xcb9f,0x827b,0x5279,0x4af5,0x01b9,0x4290,0xf718,0x126d,0x21a6,0x515e,0xefbd,0xd75e,0x42ab,0x00aa,0x10b3,0x7349,0x63b5,0x61a3,0xaadf,0xcb27,0x87df,0x6359,0xc7df,0x4876,0xb5bc,0x4114,0xfe2e,0xef5e,0x65be,0x43b9,0xe5df,0x21c9,0x7d16,0x6abb,0x5c11,0x49f7,0xbc0b,0x9e1a,0x3b0f,0x202b,0xff12,0x821b,0x842f,0xbccf,0xdefb,0x8a3e,0x68fa,0xa4f1,0x38ae,0x28b7,0x21ad,0x31d7,0x0073,0x182b,0x1831,0x3415,0xbdf6,0x2dbf,0x0a5d,0xc73d,0x182c,0x293e,0x7b3d,0x643d,0x3cbd,
    0x92dd,0x09d4,0x1029,0x7cdd,0x6239,0x182e,0x5aea,0x11eb,0x8abc,0x7bfa,0x00a7,0x2153,0x1853,0x1318,0x0109,0x54fa,0x72a7,0x89e3,0x01cf,0x3a07,0x7b17,0x1a14,0x2150,0x23dc,0x4142,0x1b33,0x00a4,0xf6df,0x08fc,0x18ae,0x3a7e,0x18d1,0xa51c,0xff5a,0x1a0f,0x28fa,0xdfbe,0x82de,0x60d7,0x1027,0x48fa,0x5150,0x6213,0x89d6,0x110d,0x9bbb,0xbedd,0x28e1,0x1925,0xf449,0xaa79,0xd5f4,0x693c,0x110a,0x2889,0x08a2,0x923d,0x10a6,0xd9bc,0x5b2e,0x32ec,0xcf7f,0x1025,0x2148,0x74b4,0x6d59,0x9d14,0x0132,0x00f0,0x56bf,0x00f1,0xffff,0x0173,0x0133,0x00b0,0x00b1,0xf7ff,0x08b1,0xfffe,0x08b0,
    0x0171,0xf7bf,0x10f3,0xf7fe,0x08ef,0x1192,0xefbe,0x1131,0x2177,0xff9f,0x1116,0xffbc,0x5914,0x22ef,0xb285,0xa6df,
};

void Lcd_Port_Init(void)
{
    GPCUP   = 0xffffffff;   // 禁止内部上拉
    GPCCON  = 0xaaaaaaaa;   // GPIO管脚用于VD[7:0],LCDVF[2:0],VM,VFRAME,VLINE,VCLK,LEND
    GPDUP   = 0xffffffff;   // 禁止内部上拉
    GPDCON  = 0xaaaaaaaa;   // GPIO管脚用于VD[23:8]
}

void Tft_Lcd_Init(int type)
{
    switch(type)
    {
    case MODE_TFT_8BIT_240320:
       
       #if 0
        LCDCON1 = (CLKVAL_TFT_240320<<8) | (LCDTYPE_TFT<<5) | \
                  (BPPMODE_8BPP<<1) | (ENVID_DISABLE<<0);
        LCDCON2 = (VBPD_240320<<24) | (LINEVAL_TFT_240320<<14) | \
                  (VFPD_240320<<6) | (VSPW_240320);
        LCDCON3 = (HBPD_240320<<19) | (HOZVAL_TFT_240320<<8) | (HFPD_240320);
        LCDCON4 = HSPW_240320;
        LCDCON5 = (FORMAT8BPP_565<<11) | (HSYNC_INV<<9) | (VSYNC_INV<<8) | \
                  (BSWP<<1);
  #endif
  LCDCON1 = (8<<8) | (3<<5) | (0x0c<<1);  
   LCDCON2 = (14<<24) | (239<<14) | (11<<6) | (2<<0);
  LCDCON3 = (37<<19) | (319<<8) | (19<<0);
  LCDCON4 = 29;
   LCDCON5 = (1<<11) | (1<<10) | (1<<9)  | (0<<6) | (1<<8) | (1<<0);
  

       
        LCDSADDR1 = ((LCDFRAMEBUFFER>>22)<<21) | LOWER21BITS(LCDFRAMEBUFFER>>1);
        LCDSADDR2 = LOWER21BITS((LCDFRAMEBUFFER+ \
                    (LINEVAL_TFT_240320+1)*(HOZVAL_TFT_240320+1)*1)>>1);
        LCDSADDR3 = (0<<11) | (LCD_XSIZE_TFT_240320/2);

       
        TPAL = 0;

        fb_base_addr = LCDFRAMEBUFFER;
        bpp = 8;
   //     xsize = 240;
   //     ysize = 320;
         xsize = 320;
         ysize = 240;
        break;
       
    case MODE_TFT_16BIT_240320:
       
         #if 0
        LCDCON1 = (CLKVAL_TFT_240320<<8) | (LCDTYPE_TFT<<5) | \
                  (BPPMODE_16BPP<<1) | (ENVID_DISABLE<<0);
        LCDCON2 = (VBPD_240320<<24) | (LINEVAL_TFT_240320<<14) | \
                  (VFPD_240320<<6) | (VSPW_240320);
        LCDCON3 = (HBPD_240320<<19) | (HOZVAL_TFT_240320<<8) | (HFPD_240320);
        LCDCON4 = HSPW_240320;
        LCDCON5 = (FORMAT8BPP_565<<11) | (HSYNC_INV<<9) | (VSYNC_INV<<8) | \
                  (HWSWP<<1);
   #endif
  LCDCON1 = (8<<8) | (3<<5) | (0x0c<<1);  
   LCDCON2 = (14<<24) | (239<<14) | (11<<6) | (2<<0);
  LCDCON3 = (37<<19) | (319<<8) | (19<<0);
  LCDCON4 = 29;
   LCDCON5 = (1<<11) | (1<<10) | (1<<9)  | (0<<6) | (1<<8) | (1<<0);
  
   
       
        LCDSADDR1 = ((LCDFRAMEBUFFER>>22)<<21) | LOWER21BITS(LCDFRAMEBUFFER>>1);
        LCDSADDR2 = LOWER21BITS((LCDFRAMEBUFFER+ \
                    (239+1)*(319+1)*2)>>1);
        LCDSADDR3 = (0<<11) | (320*2/2);

       
        TPAL = 0;

        fb_base_addr = LCDFRAMEBUFFER;
        bpp = 16;
    //    xsize = 240;
    //    ysize = 320;
         xsize = 320;
         ysize = 240;

        break;
       
    case MODE_TFT_8BIT_640480:
       
        LCDCON1 = (CLKVAL_TFT_640480<<8) | (LCDTYPE_TFT<<5) | \
                  (BPPMODE_8BPP<<1) | (ENVID_DISABLE<<0);
        LCDCON2 = (VBPD_640480<<24) | (LINEVAL_TFT_640480<<14) | \
                  (VFPD_640480<<6) | (VSPW_640480);
        LCDCON3 = (HBPD_640480<<19) | (HOZVAL_TFT_640480<<8) | (HFPD_640480);
        LCDCON4 = HSPW_640480;
        LCDCON5 = (FORMAT8BPP_565<<11) | (HSYNC_INV<<9) | (VSYNC_INV<<8) | \
                  (BSWP<<1);

       
        LCDSADDR1 = ((LCDFRAMEBUFFER>>22)<<21) | LOWER21BITS(LCDFRAMEBUFFER>>1);
        LCDSADDR2 = LOWER21BITS((LCDFRAMEBUFFER+ \
                    (LINEVAL_TFT_640480+1)*(HOZVAL_TFT_640480+1)*1)>>1);
        LCDSADDR3 = (0<<11) | (LCD_XSIZE_TFT_640480/2);

       
        TPAL = 0;

        fb_base_addr = LCDFRAMEBUFFER;
        bpp = 8;
        xsize = 640;
        ysize = 480;
       
        break;
       
    case MODE_TFT_16BIT_640480:
       
        LCDCON1 = (CLKVAL_TFT_640480<<8) | (LCDTYPE_TFT<<5) | \
                  (BPPMODE_16BPP<<1) | (ENVID_DISABLE<<0);
        LCDCON2 = (VBPD_640480<<24) | (LINEVAL_TFT_640480<<14) | \
                  (VFPD_640480<<6) | (VSPW_640480);
        LCDCON3 = (HBPD_640480<<19) | (HOZVAL_TFT_640480<<8) | (HFPD_640480);
        LCDCON4 = HSPW_640480;
        LCDCON5 = (FORMAT8BPP_565<<11) | (HSYNC_INV<<9) | (VSYNC_INV<<8) | \
                  (HWSWP<<1);

       
        LCDSADDR1 = ((LCDFRAMEBUFFER>>22)<<21) | LOWER21BITS(LCDFRAMEBUFFER>>1);
        LCDSADDR2 = LOWER21BITS((LCDFRAMEBUFFER+ \
                    (LINEVAL_TFT_640480+1)*(HOZVAL_TFT_640480+1)*2)>>1);
        LCDSADDR3 = (0<<11) | (LCD_XSIZE_TFT_640480*2/2);

       
        TPAL = 0;

        fb_base_addr = LCDFRAMEBUFFER;
        bpp = 16;
        xsize = 640;
        ysize = 480;

        break;

    default:
        break;
    }  
}

void Lcd_Palette8Bit_Init(void)
{
    int i; 
    volatile unsigned int *palette;
 LCDCON1 &= ~0x01; // stop lcd controller
   
    LCDCON5 |= (FORMAT8BPP_565<<11); // 设置调色板中数据格式为5:6:5

    palette = (volatile unsigned int *)PALETTE;
    for (i = 0; i < 256; i++)
        *palette++ = DEMO256pal[i];
 LCDCON1 |= 0x01; // re-enable lcd controller
}

void ChangePalette(UINT32 color)
{
    int i;
    unsigned char red, green, blue;
    UINT32 *palette;

 red   = (color >> 19) & 0x1f;
 green = (color >> 10) & 0x3f;
 blue  = (color >>  3) & 0x1f;
 color = (red << 11) | (green << 5) | blue; // 格式5:6:5
   
    palette=(UINT32 *)PALETTE;
 LCDCON1 &= ~0x01; // stop lcd controller
    for (i = 0; i < 256; i++)
    {
//        while (((LCDCON5>>15) & 0x3) == 2);     // 等待直到VSTATUS不为”有效”
        *palette++ = color;
    }
 LCDCON1 |= 0x01; // re-enable lcd controller
}

void Lcd_PowerEnable(int invpwren, int pwren)
{
    GPGCON = (GPGCON & (~(3<<8))) | (3<<8);   // GPG4用作LCD_PWREN
    GPGUP  = (GPGUP & (~(1<<4))) | (1<<4);    // 禁止内部上拉
   
    LCDCON5 = (LCDCON5 & (~(1<<5))) | (invpwren<<5);  // 设置LCD_PWREN的极性: 正常/反转
    LCDCON5 = (LCDCON5 & (~(1<<3))) | (pwren<<3);     // 设置是否输出LCD_PWREN
}   

void Lcd_EnvidOnOff(int onoff)
{
    if (onoff == 1)
    {
        LCDCON1 |= 1;         // ENVID ON
  GPBDAT |= (1<<0);   // Power on
    }
    else
    {
        LCDCON1 &= 0x3fffe;  // ENVID Off
     GPBDAT &= ~(1<<0);  // Power off
    }
}   

void ClearScrWithTmpPlt(UINT32 color)
{
    TPAL = (1<<24)|((color & 0xffffff)<<0);
}

void DisableTmpPlt(void)
{
    TPAL = 0;
}