Enable access to the ITCM (older k9lh payloads disabled access to it).

Thanks @Normmatt for reporting that bug.
2016-08-14 12:30:12 +02:00 · 2016-08-14 12:30:12 +02:00 · 9b304404f7
commit 9b304404f7
parent 95ef379ac5
1 changed files with 2 additions and 1 deletions
--- a/source/start.s
+++ b/source/start.s
@ -77,8 +77,9 @@ start:
    mcr p15, 0, r8, c2, c0, 0   @ Data cacheable 0, 2, 4
    mcr p15, 0, r8, c2, c0, 1   @ Inst cacheable 0, 2, 4

-    @ Enable caches / MPU
+    @ Enable caches / MPU / ITCM
    mrc p15, 0, r0, c1, c0, 0  @ read control register
+    orr r0, r0, #(1<<18)       @ - ITCM enable
    orr r0, r0, #(1<<12)       @ - instruction cache enable
    orr r0, r0, #(1<<2)        @ - data cache enable
    orr r0, r0, #(1<<0)        @ - mpu enable