Implement LP0-Entry BPMP Firmware

2018-02-23 04:13:18 -08:00
parent f7598cb433
commit 5370c7b150
12 changed files with 510 additions and 0 deletions
--- a/exosphere/bpmpfw/src/start.s
+++ b/exosphere/bpmpfw/src/start.s
@@ -0,0 +1,28 @@
+.section .text.start
+.align 4
+.global _start
+_start:
+    b crt0
+.global _reboot
+    b reboot
+
+.global crt0
+.type crt0, %function
+crt0:
+    @ setup to call lp0_entry_main
+    msr cpsr_f, #0xC0
+    msr cpsr_cf, #0xD3
+    ldr sp, =__stack_top__
+    ldr lr, =reboot
+    bl lp0_entry_main
+    infloop:
+        b infloop
+       
+       
+.global spinlock_wait
+.type spinlock_wait, %function
+spinlock_wait:
+    sub r0, r0, #1
+    cmp r0, #0
+    bgt spinlock_wait
+    bx lr