diff --git a/README b/README index 85cbb8e02147a3ccfd848440a6dcbd709a5dffff..ba4fdd44a3e7f60dac0096dc09a9f42c03e0222c 100644 --- a/README +++ b/README @@ -2011,6 +2011,20 @@ The following options need to be configured: thus overwriting the architecutre dependent default settings. +- Frame Buffer Address: + CONFIG_FB_ADDR + + Define CONFIG_FB_ADDR if you want to use specific address for + frame buffer. + Then system will reserve the frame buffer address to defined address + instead of lcd_setmem (this function grab the memory for frame buffer + by panel's size). + + Please see board_init_f function. + + If you want this config option then, + please define it at your board config file + Legacy uImage format: Arg Where When diff --git a/arch/arm/lib/board.c b/arch/arm/lib/board.c index d5b34adfb0cf32b413c65371ce3a055aaa17ce14..1a784a1e1958328251b283e4ed14d149e3eb5e6d 100644 --- a/arch/arm/lib/board.c +++ b/arch/arm/lib/board.c @@ -356,9 +356,13 @@ void board_init_f (ulong bootflag) #endif /* CONFIG_VFD */ #ifdef CONFIG_LCD +#ifdef CONFIG_FB_ADDR + gd->fb_base = CONFIG_FB_ADDR; +#else /* reserve memory for LCD display (always full pages) */ addr = lcd_setmem (addr); gd->fb_base = addr; +#endif /* CONFIG_FB_ADDR */ #endif /* CONFIG_LCD */ /* diff --git a/arch/m68k/lib/board.c b/arch/m68k/lib/board.c index f824b34252d47a8b380d187a2518c010c4f44373..6a892db649cdaf6e03a881960a9f2139b4803480 100644 --- a/arch/m68k/lib/board.c +++ b/arch/m68k/lib/board.c @@ -277,9 +277,13 @@ board_init_f (ulong bootflag) debug ("Top of RAM usable for U-Boot at: %08lx\n", addr); #ifdef CONFIG_LCD +#ifdef CONFIG_FB_ADDR + gd->fb_base = CONFIG_FB_ADDR; +#else /* reserve memory for LCD display (always full pages) */ addr = lcd_setmem (addr); gd->fb_base = addr; +#endif /* CONFIG_FB_ADDR */ #endif /* CONFIG_LCD */ /* diff --git a/arch/powerpc/lib/board.c b/arch/powerpc/lib/board.c index 83fb0744f547f576edf21264b72f46762abc012f..aaa5add1fa5bc4bda439ee5430f655747640fbb9 100644 --- a/arch/powerpc/lib/board.c +++ b/arch/powerpc/lib/board.c @@ -459,9 +459,13 @@ void board_init_f (ulong bootflag) debug ("Top of RAM usable for U-Boot at: %08lx\n", addr); #ifdef CONFIG_LCD +#ifdef CONFIG_FB_ADDR + gd->fb_base = CONFIG_FB_ADDR; +#else /* reserve memory for LCD display (always full pages) */ addr = lcd_setmem (addr); gd->fb_base = addr; +#endif /* CONFIG_FB_ADDR */ #endif /* CONFIG_LCD */ #if defined(CONFIG_VIDEO) && defined(CONFIG_8xx)