* Some code cleanup

[karo-tx-uboot.git] / examples / stubs.c

diff --git a/examples/stubs.c b/examples/stubs.c
index 6ca6d78694fada47496ce3dcd12fa2b0fdd64198..a26337a926b169ff3780772ec69b8a9d11fe993a 100644 (file)
--- a/examples/stubs.c
+++ b/examples/stubs.c
@@ -78,6 +78,22 @@ gd_t *global_data;
 "      jmp     %%g0\n"                 \
 "      nop     \n"                     \
        : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x) : "r0");
+#elif defined(CONFIG_M68K)
+/*
+ * d7 holds the pointer to the global_data, a0 is a call-clobbered
+ * register
+ */
+#define EXPORT_FUNC(x) \
+       asm volatile (                  \
+"      .globl " #x "\n"                \
+#x ":\n"                               \
+"      move.l  %%d7, %%a0\n"           \
+"      adda.l  %0, %%a0\n"             \
+"      move.l  (%%a0), %%a0\n"         \
+"      adda.l  %1, %%a0\n"             \
+"      move.l  (%%a0), %%a0\n"         \
+"      jmp     (%%a0)\n"                       \
+       : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "a0");
 #else
 #error stubs definition missing for this architecture
 #endif