linux/arch/openrisc/kernel
Stafford Horne a4d4426635 openrisc: head: Init r0 to 0 on start
Originally openrisc spec 0 specified that r0 would be wired to ground.
This is no longer the case.  r0 is not guaranteed to be 0 at init, so we
need to initialize it to 0 before using it.

Also, if we are clearing r0 we cant use r0 to clear itself. Change the
the CLEAR_GPR macro to use movhi for clearing.

Reported-by: Jakob Viketoft <jakob.viketoft@aacmicrotec.com>
Signed-off-by: Stafford Horne <shorne@gmail.com>
2017-02-25 05:08:47 +09:00
..
.gitignore openrisc: Add .gitignore 2017-02-25 04:14:36 +09:00
asm-offsets.c openrisc: use kbuild.h instead of defining macros in asm-offset.c 2012-10-25 15:54:33 +02:00
dma.c arch/openrisc: add option to skip DMA sync as a part of mapping 2016-12-14 16:04:07 -08:00
entry.S openrisc: entry: Fix delay slot detection 2017-02-25 04:31:06 +09:00
head.S openrisc: head: Init r0 to 0 on start 2017-02-25 05:08:47 +09:00
irq.c openrisc: Get rid of handle_IRQ 2014-09-03 13:11:02 +00:00
Makefile openrisc: Use generic idle loop 2013-04-08 17:39:27 +02:00
module.c openrisc: Refactor 16-bit constant relocation 2013-11-05 16:27:55 +01:00
or32_ksyms.c openrisc: Add optimized memset 2017-02-25 04:14:35 +09:00
process.c openrisc: Initial support for the idle state 2017-02-25 04:14:35 +09:00
prom.c openrisc: remove unnecessary prom.c includes 2013-10-09 11:39:01 -05:00
ptrace.c openrisc: remove unnecessary stddef.h include 2017-02-25 04:14:34 +09:00
setup.c openrisc: add cache way information to cpuinfo 2017-02-06 21:50:41 +09:00
signal.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
sys_call_table.c OpenRISC: System calls 2011-07-22 18:46:34 +02:00
time.c clocksource: Use a plain u64 instead of cycle_t 2016-12-25 11:04:12 +01:00
traps.c openrisc: add l.lwa/l.swa emulation 2017-02-06 21:50:43 +09:00
vmlinux.h of/fdt: consolidate built-in dtb section variables 2014-04-30 00:59:13 -05:00
vmlinux.lds.S openrisc: Add _text symbol to fix ksym build error 2017-01-02 10:35:11 +09:00