iMX53的SMD平台上u-boot上已经打开了定义CONFIG_SPLASH_SCREEN(按照官方给出的u-boot-imx5x.pdf)，但是还是不能显示**等图片，请教方法？
#define CONFIG_SPLASH_SCREEN
#ifdef CONFIG_SPLASH_SCREEN
/*
* Framebuffer and LCD
*/
#define CONFIG_LCD
#define CONFIG_VIDEO_MX5
#define CONFIG_IPU_CLKRATE 200000000
#define CONFIG_SYS_CONSOLE_ENV_OVERWRITE
#define CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
#define CONFIG_SYS_CONSOLE_IS_IN_ENV
#define LCD_BPP LCD_COLOR16
#define CONFIG_CMD_BMP
#define CONFIG_BMP_8BPP
#define CONFIG_FB_BASE (TEXT_BASE + 0x300000)
#define CONFIG_SPLASH_SCREEN_ALIGN
#define CONFIG_SYS_WHITE_ON_BLACK
#define CONFIG_IMX_PWM
#define IMX_PWM1_BASE PWM1_BASE_ADDR
#define IMX_PWM2_BASE PWM2_BASE_ADDR
#endif
#endif
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