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Don't grab memory for LCD if FB address is defined

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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>
This commit is contained in:
Minkyu Kang 2011-04-24 22:22:34 +00:00 committed by Albert ARIBAUD
parent aeb630d206
commit d32a1a4caa
4 changed files with 26 additions and 0 deletions
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14
README
View file

@ -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

4
arch/arm/lib/board.c
View file

@ -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 */
/*

4
arch/m68k/lib/board.c
View file

@ -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 */
/*

4
arch/powerpc/lib/board.c
View file

@ -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)