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| author | Macpaul Lin <macpaul@andestech.com> | 2011-10-11 22:33:20 +0000 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2011-10-22 00:53:48 +0200 |
| commit | 72c73ddec3d50776fda2fcd92854f0d9fc9d4a33 (patch) | |
| tree | b6884d2e3f5870552bd74d6181df17d4ce72a94d /examples/standalone/stubs.c | |
| parent | 463d47f66ce19aac043d98d77a958908e2a3eb39 (diff) | |
| download | u-boot-imx-72c73ddec3d50776fda2fcd92854f0d9fc9d4a33.zip u-boot-imx-72c73ddec3d50776fda2fcd92854f0d9fc9d4a33.tar.gz u-boot-imx-72c73ddec3d50776fda2fcd92854f0d9fc9d4a33.tar.bz2 | |
nds32: standalone support
Add standalone program related support for nds32 architecture.
Signed-off-by: Macpaul Lin <macpaul@andestech.com>
Diffstat (limited to 'examples/standalone/stubs.c')
| -rw-r--r-- | examples/standalone/stubs.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/examples/standalone/stubs.c b/examples/standalone/stubs.c index 507d38c..11c7565 100644 --- a/examples/standalone/stubs.c +++ b/examples/standalone/stubs.c @@ -167,8 +167,23 @@ gd_t *global_data; " jmp %%g1\n" \ " nop\n" \ : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "g1" ); - +#elif defined(CONFIG_NDS32) +/* + * r16 holds the pointer to the global_data. gp is call clobbered. + * not support reduced register (16 GPR). + */ +#define EXPORT_FUNC(x) \ + asm volatile ( \ +" .globl " #x "\n" \ +#x ":\n" \ +" lwi $r16, [$gp + (%0)]\n" \ +" lwi $r16, [$r16 + (%1)]\n" \ +" jr $r16\n" \ + : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "$r16"); #else +/*" addi $sp, $sp, -24\n" \ +" br $r16\n" \*/ + #error stubs definition missing for this architecture #endif |