api: Add FreeBSD API support for MIPS platforms
This patch adds U-Boot API support (used by FreeBSD loader) for MIPS platforms.
Signed-off-by: Stanislav Galabov <sgalabov@gmail.com>
diff --git a/examples/api/Makefile b/examples/api/Makefile
index 6cf23d1..4e9b8ea 100644
--- a/examples/api/Makefile
+++ b/examples/api/Makefile
@@ -10,6 +10,9 @@
ifeq ($(ARCH),arm)
LOAD_ADDR = 0x1000000
endif
+ifeq ($(ARCH),mips)
+LOAD_ADDR = 0x80200000
+endif
# Resulting ELF and binary exectuables will be named demo and demo.bin
extra-y = demo
diff --git a/examples/api/crt0.S b/examples/api/crt0.S
index 78d35a2..ced2c82 100644
--- a/examples/api/crt0.S
+++ b/examples/api/crt0.S
@@ -40,6 +40,30 @@
ldr ip, =syscall_ptr
ldr pc, [ip]
+#elif defined(CONFIG_MIPS)
+ .text
+ .globl __start
+ .ent __start
+__start:
+ sw $sp, search_hint
+ b main
+ .end __start
+
+ .globl syscall
+ .ent syscall
+syscall:
+ sw $ra, return_addr
+ lw $t9, syscall_ptr
+ jalr $t9
+ nop
+ lw $ra, return_addr
+ jr $ra
+ nop
+ .end syscall
+
+return_addr:
+ .align 4
+ .long 0
#else
#error No support for this arch!
#endif