[microblaze-uclinux] Use xgpio.h and xparameters.h

["Nadine Seyberlich" <Serina16@xxxxxxx>]

Hi all,

I want to use the Xilinx GPIO-driver (xgpio.h) which is included in the uClinux. Could somebody tell me how I can compile it correctly to use it? I have written a C-Code like this: 
------------------------------------------------------------
#include "xparameters.h"	
#include "xgpio.h"		

int main()
{
	XGpio test;	
	XGpio_Initialize(&test, XPAR_LED_GPIO_DEVICE_ID);
	return 0;
}
------------------------------------------------------------
I have the following Makefile:
------------------------------------------------------------
ifndef ROOTDIR
ROOTDIR=../../uClinux-dist-20051110-suzaku8
endif
ROMFSDIR = $(ROOTDIR)/romfs
ROMFSINST = romfs-inst.sh
PATH	:= $(PATH):$(ROOTDIR)/tools
  
UCLINUX_BUILD_USER = 1
include $(ROOTDIR)/.config
LIBCDIR = $(CONFIG_LIBCDIR)
include $(ROOTDIR)/config.arch

EXEC = DataTransfer
OBJS = DataTransfer.o 

all: $(EXEC)

$(EXEC): $(OBJS)
	$(CC) $(LDFLAGS) -o $@ $(OBJS) $(LIBTHREAD) $(LDLIBS)

clean:
	-rm -f $(EXEC) *.elf *.gdb *.o

 romfs:
	$(ROMFSINST)  /bin/$(EXEC)

%.o: %.c
	$(CC) -c $(CFLAGS) -o $@ $<
------------------------------------------------------------
I get the follwing errors:
ucfront-gcc mb-gcc  -Wl,-elf2flt -o DataTransfer DataTransfer.o   
DataTransfer.elf2flt: In function `main':
/home/suzaku/s03_nase/suzaku_proj/SDK_projects/TestApplication/Debug/../DataTransfer.c(.text+0x58): undefined reference to `XGpio_Initialize'
/home/suzaku/s03_nase/suzaku_proj/SDK_projects/TestApplication/Debug/../DataTransfer.c:26: undefined reference to `XGpio_SetDataDirection'
/home/suzaku/s03_nase/suzaku_proj/SDK_projects/TestApplication/Debug/../DataTransfer.c:27: undefined reference to `XGpio_DiscreteWrite'
collect2: ld returned 1 exit status
make: *** [DataTransfer] Error 1


Is there an alternative for the Makefile oder does I have to change the C-Code? Or does I have to use the ibm_ocp_gpio.h? 

Greetings

N. Seyberlich
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