sbl bringup: stublets, slots, maze, ffu-ref, b10 chain, docs

2026-09-07 13:10:38 +00:00
parent 11facdfb45
commit c7e95b4194
6 changed files with 430 additions and 4 deletions
@@ -0,0 +1,50 @@
+.syntax unified
+.cpu cortex-a7
+.thumb
+@ SBL1 pop-compensation stublets for saimaa (v3: slots hold STUBLET
+@ addresses, never raw CONTS; S4<->S5 ping-pong stage each other).
+.text
+.global stub10_a, stub2, stub10_b, stub6_a, stub10_c, stub6_b, stub8
+stub10_a:                       @ N=10, jump CONT=0x802f65d
+    push {r4-r7}
+    push {r8-r11,ip,lr}
+    ldr ip, =stub10_a
+    str ip, [sp, #36]
+    ldr pc, =0x802f65d
+stub2:                          @ N=2, jump CONT=0x802f665
+    push {r4-r5}
+    ldr ip, =stub2
+    str ip, [sp, #4]
+    ldr pc, =0x802f665
+stub10_b:                       @ N=10, jump CONT=0x8013ba5
+    push {r4-r7}
+    push {r8-r11,ip,lr}
+    ldr ip, =stub10_b
+    str ip, [sp, #36]
+    ldr pc, =0x8013ba5
+stub6_a:                        @ N=6, jump CONT=0x802f681,
+                                @ stage stub10_c for upcoming S5
+    push {r4-r7,lr}
+    push {r0}
+    ldr ip, =stub10_c
+    str ip, [sp, #20]
+    ldr pc, =0x802f681
+stub10_c:                       @ N=10, jump CONT=0x8016183,
+                                @ restage stub6_a for future S4
+    push {r4-r7}
+    push {r8-r11,ip,lr}
+    ldr ip, =stub6_a
+    str ip, [sp, #36]
+    ldr pc, =0x8016183
+stub6_b:                        @ N=6, jump CONT=0x8018a8d
+    push {r4-r7,lr}
+    push {r0}
+    ldr ip, =stub6_b
+    str ip, [sp, #20]
+    ldr pc, =0x8018a8d
+stub8:                          @ N=8, jump CONT=0x802f67d
+    push {r4-r7,lr}
+    push {r0-r2}
+    ldr ip, =stub8
+    str ip, [sp, #28]
+    ldr pc, =0x802f67d