If FB address is defined specific address then don't grab memory for LCD
Signed-off-by: Minkyu Kang mk7.kang@samsung.com Cc: Albert Aribaud albert.aribaud@free.fr Cc: Wolfgang Denk wd@denx.de Cc: Stefan Roese sr@denx.de Cc: Kim Phillips kim.phillips@freescale.com Cc: Andy Fleming afleming@gmail.com Cc: Kumar Gala kumar.gala@freescale.com --- v4 move the document v3 fix whitespace errors v2 add document
README | 14 ++++++++++++++ arch/arm/lib/board.c | 4 ++++ arch/m68k/lib/board.c | 4 ++++ arch/powerpc/lib/board.c | 4 ++++ 4 files changed, 26 insertions(+), 0 deletions(-)
diff --git a/README b/README index beb1cbb..c5533b4 100644 --- a/README +++ b/README @@ -2009,6 +2009,20 @@ 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 dc46e21..db13ad1 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 f824b34..6a892db 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 83fb074..aaa5add 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)