diff options
| -rw-r--r-- | sys/arm/arm/elf_trampoline.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/sys/arm/arm/elf_trampoline.c b/sys/arm/arm/elf_trampoline.c index 945f653..403c012 100644 --- a/sys/arm/arm/elf_trampoline.c +++ b/sys/arm/arm/elf_trampoline.c @@ -614,6 +614,17 @@ __start(void) (unsigned int)&func_end + 800 , 0); if (altdst > dst) dst = altdst; + + /* + * Disable MMU. Otherwise, setup_pagetables call below + * might overwrite the L1 table we are currently using. + */ + cpu_idcache_wbinv_all(); + cpu_l2cache_wbinv_all(); + __asm __volatile("mrc p15, 0, %0, c1, c0, 0\n" + "bic %0, %0, #1\n" /* MMU_DISABLE */ + "mcr p15, 0, %0, c1, c0, 0\n" + :"=r" (pt_addr)); } else #endif dst = 4 + load_kernel((unsigned int)&kernel_start, |
