This series adds link_off(), a function to calculate the difference between load address and link address.
Using this function it is possible to make u-boot 100% PIC by wrapping global data accesses LINK_OFF() calls. Plenty of examples in the code to show how to use it.
All start.S needs to be updated too and I have done so with mpc83xx.
-DCONFIG_LINK_OFF in your platform config.mk to make use of this function.
Needs the -ffixed-r14 patches I just sent or you can fix the conflicts manually.
Would really appreciate some testing by 83xx owners. Scott?
Note: this is a resend.
Jocke
Joakim Tjernlund (4): ppc: Add const void *link_off(const void *addr) Use LINK_OFF to access global data Use LINK_OFF in enviroment too ppc: Make mpc83xx start.S relative.
common/cmd_nvedit.c | 2 + common/console.c | 12 ++++++-- common/env_common.c | 2 +- common/env_flash.c | 65 ++++++++++++++++++++++++---------------- cpu/mpc83xx/cpu.c | 10 +++--- cpu/mpc83xx/cpu_init.c | 38 ++++++++++++----------- cpu/mpc83xx/speed.c | 28 +++++++----------- cpu/mpc83xx/start.S | 35 +++++++++++++++++---- drivers/serial/serial.c | 21 +++++++------ include/common.h | 7 ++++ include/linux/ctype.h | 6 ++-- lib_generic/crc32.c | 7 ++++- lib_generic/ctype.c | 2 +- lib_generic/display_options.c | 5 ++- lib_generic/vsprintf.c | 9 ++++-- lib_ppc/board.c | 5 ++- lib_ppc/reloc.S | 21 +++++++++++++ tools/updater/ctype.c | 2 +- 18 files changed, 177 insertions(+), 100 deletions(-)