[U-Boot-Users] LED-D2,D3 on LN2410SBC

[Shakthi Kannan]

Greetings!

I am trying to get the leds, D2 and D3 to glow on the
LN2410SBC board from littlechips.com. I am using
u-boot-1.1.1 My code:

/*
 * led.c
 */
 
#include <common.h>
#include <exports.h>

int main (int argc, char *argv[])
{
 int *r_gpbcon = 0x56000010;
 int *r_gpbdat = 0x56000014;

 app_startup(argv);

 printf ("r_gpbcon = %x\n", *(r_gpbcon));
 *(r_gpbcon) = ((*(r_gpbcon))&~(0xf<<10))|(0x5<<10);
 printf ("r_gpbcon = %x\n", *(r_gpbcon));
 printf ("r_gpbdat = %x\n", *(r_gpbdat));

 *(r_gpbdat) |= (3<<5);
 printf ("r_gpbdat = %x\n", *(r_gpbdat));

 return 0;   
}

The Makefile I use to build it:

# Makefile

# Tools

CROSS   = /usr/local/arm/2.95.3/bin/arm-linux-
CC   = $(CROSS)gcc
AS   = $(CROSS)as
LD   = $(CROSS)ld
OBJCOPY = $(CROSS)objcopy
TARGET   = led
BASE   = 0x30100000
CFLAGS   = -g -Os -fno-strict-aliasing -fno-common
-ffixed-r8 -msoft-float -D__KERNEL__ -fno-builtin 
-ffreestanding -nostdinc -isystem 
/usr/local/arm/2.95.3/bin/../lib/gcc-lib/arm-linux/2.95.3/include
 -pipe -DCONFIG_ARM -D__ARM__ -march=armv4 -Wall 
-Wstrict-prototypes

INCLUDE =
-I/home/shaks/code/ln2410sbc/uboot-1.1.1/include
-I/usr/local/arm/2.95.3/lib/gcc-lib/arm-linux/2.95.3/include

LIBSTUBS =
/home/shaks/code/ln2410sbc/uboot-1.1.1/examples/libstubs.a

LGCC     =
-L/usr/local/arm/2.95.3/bin/../lib/gcc-lib/arm-linux/2.95.3
-lgcc
-L/home/shaks/code/ln2410sbc/uboot-1.1.1/examples
-lstubs

LIBSTUB_INCLUDE   =
/usr/local/arm/2.95.3/bin/../lib/gcc-lib/arm-linux/2.95.3/include

LDFLAGS   = -g -Ttext $(BASE) -e main

all:
 $(CC) $(CFLAGS) $(INCLUDE) -c $(TARGET).c -o
$(TARGET).o
 $(LD) $(LDFLAGS) $(TARGET).o -o $(TARGET) $(LIBSTUBS)
$(LGCC)
 $(OBJCOPY) -O binary $(TARGET) $(TARGET).bin
2>/dev/null

clean:
   rm -f *~ *.o *.bin $(TARGET) semantic.cache*

I copy the led.bin file to /tftpboot in my host
system, and I copy it to the board using "tftp
0x30100000 led.bin". It runs, but, leds d2 and d3
won't glow.

Can anyone tell me what I am doing wrong and how I can
get this up and running?

Thanking you,

SK


--
Shakthi Kannan, MS
Software Engineer, Hexaware Technologies
[E]: shakthimaan at yahoo.com           [M]: (91) 98407-87007
[W]: http://www.shakthimaan.com      [L]: Chennai, India


		
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