Hi Minkyu Kang,
Le 15/03/2011 09:35, Minkyu Kang a écrit :
f FB address is defined specific address then don't grab memory for LCD
Signed-off-by: Minkyu Kangmk7.kang@samsung.com Cc: Albert Aribaudalbert.aribaud@free.fr Cc: Wolfgang Denkwd@denx.de Cc: Stefan Roesesr@denx.de Cc: Kim Phillipskim.phillips@freescale.com Cc: Andy Flemingafleming@gmail.com Cc: Kumar Galakumar.gala@freescale.com
v2 add document
arch/arm/lib/board.c | 4 ++++ arch/m68k/lib/board.c | 4 ++++ arch/powerpc/lib/board.c | 4 ++++ doc/README.fb_addr | 17 +++++++++++++++++ 4 files changed, 29 insertions(+), 0 deletions(-) create mode 100644 doc/README.fb_addr
diff --git a/arch/arm/lib/board.c b/arch/arm/lib/board.c index c620d2c..5a4d2bd 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 7867ba5..a6cd9b8 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 b88cf6b..09c20e9 100644 --- a/arch/powerpc/lib/board.c +++ b/arch/powerpc/lib/board.c @@ -453,9 +453,13 @@ 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) diff --git a/doc/README.fb_addr b/doc/README.fb_addr new file mode 100644 index 0000000..ea8bca6 --- /dev/null +++ b/doc/README.fb_addr @@ -0,0 +1,17 @@ +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 below code (in board_init_f function from arch/arm/lib/board.c)
+#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 */
+If you want this config option then please define it at your board config file
+#define CONFIG_FB_ADDR 0x00000000
Patch does not apply cleanly through git am due to whitespace errors (space before tabs).
Amicalement,