Re: Please help me with compiling the kernel for ML403

[Glenn.G.Hart@us.westinghouse.com]

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Mohammad,

I didn't have much success copying the entire BSP into the kernel.  Please
see my post titled "Linux w/ML403 PLB TEMAC".  It is basically the tutorial
of how I got Linux working on an ML403 board.

Glenn



                                                                                                     
 (Embedded     Mohammad Sadegh Sadri <mamsadegh@hotmail.com>@ozlabs.org                              
 image moved   02/28/2007 04:21 PM                                                                   
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Sent by:
       linuxppc-embedded-bounces+glenn.g.hart=us.westinghouse.com@ozlabs.org


To:    <linuxppc-embedded@ozlabs.org>
cc:
Subject:    Please help me with compiling the kernel for ML403

Security Level:?              Internal



Hi

It is some thing more than 2 weeks that I'm trying to compile the kernel
for ML403.
Posted to questions here, but unfortunately, didn't get any answer from the
experts here.
I have tested every thing I knew ( with my limited knowledge ) and now, I
really need your help.

I'm using the following set of tools:
EDK 8.2.02,  ( Latest )
ELDK 4.1 ( Latest )

-I want to compile the 2.6.20 kernel, downloaded from kernel.org

-As the first step, in EDK, I choose linux 2.6 in software platform
generation settings,

-I generate the BSP.

-In the generated BSP , I convert all of the 40x strings to 403, also I
change the name of xparameters_ml40x to xparameters_ml403

-I copy the 2.6.20 kernel /eldk/ppc_4xx/usr/src/linux , and set all of the
needed env variables for cross compile, and set the needed changes in the
linux Makefile. ( ARCH and
CROSS_COMPILE )

-I copy the entire BSP into the root of the linux kernel.

-I edit the linux/arch/ppc/Kconfig file, and add these lines into it:
config XILINX_OCP
 bool "Xilinx OCP"
 default y

config XILINX_TEMAC
 bool "Xilinx TEMAC"
 default y

config XILINX_SYSACE
 bool "Xilinx System ACE"
 default y

config XILINX_EDK
 bool "Xilinx EDK Support"
 default y

-In the linux folder I execute the cow.tcl script provided with the BSP
from EDK ( I execute tclsh cow.tcl )

-I make a symbolic link , for config.h file, ( I go to linux/include/linux
and then ln -s autoconf.h config.h )

-I begin the menuconfig and set all of the needed parameters

-Now, I begin the make process by simply typing : make

- I encounter the following error:
arch/ppc/platforms/4xx/virtex.c:20: error: array type has incomplete
element type
arch/ppc/platforms/4xx/virtex.c:60: error: field name not in record or
union initializer
arch/ppc/platforms/4xx/virtex.c:60: error: (near initialization for
'core_ocp')
make[1]: *** [arch/ppc/platforms/4xx/virtex.o] Error 1
make: *** [arch/ppc/platforms/4xx] Error 2

- I can prevent this error by commenting these lines of
/arch/ppc/platforms/4xx/virtex.c file:
/* Have OCP take care of the serial ports. */
struct ocp_def core_ocp[] = {
#ifdef XPAR_UARTNS550_0_BASEADDR
 { .vendor  = OCP_VENDOR_XILINX,
   .function      = OCP_FUNC_16550,
   .index   = 0,
   .paddr   = XPAR_UARTNS550_0_BASEADDR,
   .irq           = XPAR_INTC_0_UARTNS550_0_VEC_ID,
   .pm            = OCP_CPM_NA
 },
#ifdef XPAR_UARTNS550_1_BASEADDR
 { .vendor  = OCP_VENDOR_XILINX,
   .function      = OCP_FUNC_16550,
   .index   = 1,
   .paddr   = XPAR_UARTNS550_1_BASEADDR,
   .irq           = XPAR_INTC_0_UARTNS550_1_VEC_ID,
   .pm            = OCP_CPM_NA
 },
#ifdef XPAR_UARTNS550_2_BASEADDR
 { .vendor  = OCP_VENDOR_XILINX,
   .function      = OCP_FUNC_16550,
   .index   = 2,
   .paddr   = XPAR_UARTNS550_2_BASEADDR,
   .irq           = XPAR_INTC_0_UARTNS550_2_VEC_ID,
   .pm            = OCP_CPM_NA
 },
#ifdef XPAR_UARTNS550_3_BASEADDR
 { .vendor  = OCP_VENDOR_XILINX,
   .function      = OCP_FUNC_16550,
   .index   = 3,
   .paddr   = XPAR_UARTNS550_3_BASEADDR,
   .irq           = XPAR_INTC_0_UARTNS550_3_VEC_ID,
   .pm            = OCP_CPM_NA
 },
#ifdef XPAR_UARTNS550_4_BASEADDR
#error Edit this file to add more devices.
#endif                  /* 4 */
#endif                  /* 3 */
#endif                  /* 2 */
#endif                  /* 1 */
#endif                  /* 0 */
 { .vendor  = OCP_VENDOR_INVALID
 }
};

- Instead of the ebove lines, I just put one simple line: ( I use uart lite
and not the 16550 so there should be no problem commenting these lines? )
struct ocp_def * core_ocp;

- now, I begin the make process again, The make process goes ahead but
  after a long time it generates another error:
  GEN     .version
  CHK     include/linux/compile.h
  UPD     include/linux/compile.h
  CC      init/version.o
  LD      init/built-in.o
  LD      .tmp_vmlinux1
arch/ppc/syslib/built-in.o: In function `ppc_sys_device_remove':
: undefined reference to `ppc_sys_platform_devices'
arch/ppc/syslib/built-in.o: In function `ppc_sys_device_remove':
: undefined reference to `ppc_sys_platform_devices'
arch/ppc/syslib/built-in.o: In function `ppc_sys_device_initfunc':
: undefined reference to `ppc_sys_platform_devices'
arch/ppc/syslib/built-in.o: In function `ppc_sys_device_initfunc':
: undefined reference to `ppc_sys_platform_devices'
arch/ppc/syslib/built-in.o: In function `ppc_sys_device_setfunc':
: undefined reference to `ppc_sys_platform_devices'
arch/ppc/syslib/built-in.o:: more undefined references to
`ppc_sys_platform_devices' follow
make: *** [.tmp_vmlinux1] Error 1

- If I do not add the BSP files from EDK to my kernel and compile the
kernel for ML403, every thing will be completely OK. ( But I want TEMAC )

- when I look in the original virtex.c file, I see that it has defined
ppc_sys_platform_devices but when I look at the virtex.c generated by
Xilinx, I see that it has a completely different structure, it has no
definition of this variable. It is completely different from the original
virtex.c

- I have tested the same things above, with different versions of 2.6
kernel, such as, 2.6.17.1 and 26-xilinx-devel ( which I download from
montavista using git near two weeks ago ) , I also changed the version of
eldk to 4.0 and to 3.5 ( with 3.5 I could not compile the kernel at all )

Any idea, Any suggestion and any thing which can help even a litte, is
welcome,
I really do not know what to do more.

Thanks.

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