[U-Boot] Custom PPC440GX board: "Unsupported relocation error"

[Wouter Eckhardt]

Hi all.

I've been busy getting a custom PPC440GX board to boot U-Boot. I started
with a U-Boot (version 1.3.2) based on the ALPR board and the ELDK 4.0
toolchain.

I got all that working and now I trying to move up to a newer version of
U-Boot and a newer toolchain (specifically: U-Boot 2009.03 and ELDK
4.2). After some twiddling of defines in my config file I got following
compiler error:

make[1]: Entering directory
`/data/projects/p3x440/we/u-boot-latest/board/prodrive/p3x440'
ppc_4xx-gcc -g  -Os   -fPIC -ffixed-r14 -meabi -fno-strict-aliasing
-D__KERNEL__ -DTEXT_BASE=0xFFFC0000
-I/data/projects/p3x440/we/u-boot-latest/include -fno-builtin
-ffreestanding -nostdinc -isystem
/data/tools/eldk-4.2/usr/bin/../lib/gcc/powerpc-linux/4.2.2/include
-pipe  -DCONFIG_PPC -D__powerpc__ -DCONFIG_4xx -ffixed-r2 -mstring
-msoft-float -Wa,-m440 -mcpu=440 -DCONFIG_440=1 -Wall
-Wstrict-prototypes -fno-stack-protector -c -o p3x440.o p3x440.c
p3x440.c: In function 'last_stage_init':
p3x440.c:88: warning: unused variable 'reg'
{standard input}: Assembler messages:
{standard input}:130: Error: unsupported relocation against uicb0sr
{standard input}:135: Error: unsupported relocation against uicb0er
{standard input}:137: Error: unsupported relocation against uicb0cr
{standard input}:142: Error: unsupported relocation against uicb0pr
{standard input}:147: Error: unsupported relocation against uicb0tr
{standard input}:152: Error: unsupported relocation against uicb0vr
make[1]: *** [p3x440.o] Error 1
make[1]: Leaving directory
`/data/projects/p3x440/we/u-boot-latest/board/prodrive/p3x440'
make: *** [board/prodrive/p3x440/libp3x440.a] Error 2

The offending piece of code is this:
int last_stage_init(void)
{
        unsigned short reg;

        /*
         * Configure LED's of both Marvell 88E1111 PHY's
         *
         * This has to be done after the 4xx ethernet driver is loaded,
         * so "last_stage_init()" is the right place.
         */
/* TODO: WE: Fix this. */
/*
        miiphy_read("ppc_4xx_eth0", CONFIG_PHY_ADDR, 0x18, &reg);
        reg |= 0x0001;
        miiphy_write("ppc_4xx_eth0", CONFIG_PHY_ADDR, 0x18, reg);
        miiphy_read("ppc_4xx_eth1", CONFIG_PHY1_ADDR, 0x18, &reg);
        reg |= 0x0001;
        miiphy_write("ppc_4xx_eth1", CONFIG_PHY1_ADDR, 0x18, reg);
*/
        return 0;
}

I'm not really sure what went wrong here. Google tells me that this is
usually related to incorrect assembler sequences. Am I missing some
compiler settings?

Thanks in advance!

Met vriendelijke groet,
Kind regards,
Wouter Eckhardt
Engineer
wouter.eckhardt at prodrive.nl
tel. +31 40 2676187
Prodrive B.V.
Postbus 28030
5602 JA Eindhoven
Ekkersrijt 5025
5692 EB Son
The Netherlands
tel. +31 40 2676200
fax: +31 40 2676201
www.prodrive.nl


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