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| author | Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> | 2011-11-18 19:21:35 (GMT) |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2012-01-13 20:16:55 (GMT) |
| commit | 3553493d8b4e402a737b80b04fab06f6e81bcb69 (patch) | |
| tree | 9db3cab6ba5095f86765ed46a3f1fc7899efab21 /examples/standalone | |
| parent | 2be9fdbfcc4d41e3a7f7d6b1b1b21a39ce5aa6e9 (diff) | |
| download | u-boot-3553493d8b4e402a737b80b04fab06f6e81bcb69.tar.xz | |
openrisc: Add support for standalone programs
Signed-off-by: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Diffstat (limited to 'examples/standalone')
| -rw-r--r-- | examples/standalone/stubs.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/examples/standalone/stubs.c b/examples/standalone/stubs.c index a6add6a..15e9afc 100644 --- a/examples/standalone/stubs.c +++ b/examples/standalone/stubs.c @@ -181,6 +181,20 @@ gd_t *global_data; " lwi $r16, [$r16 + (%1)]\n" \ " jr $r16\n" \ : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "$r16"); +#elif defined(CONFIG_OPENRISC) +/* + * r10 holds the pointer to the global_data, r13 is a call-clobbered + * register + */ +#define EXPORT_FUNC(x) \ + asm volatile ( \ +" .globl " #x "\n" \ +#x ":\n" \ +" l.lwz r13, %0(r10)\n" \ +" l.lwz r13, %1(r13)\n" \ +" l.jr r13\n" \ +" l.nop\n" \ + : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "r13"); #else /*" addi $sp, $sp, -24\n" \ " br $r16\n" \*/ |