diff options
| -rw-r--r-- | src/soc/broadcom/cygnus/bootblock.c | 13 | ||||
| -rw-r--r-- | src/soc/broadcom/cygnus/include/soc/memlayout.ld | 1 |
2 files changed, 11 insertions, 3 deletions
diff --git a/src/soc/broadcom/cygnus/bootblock.c b/src/soc/broadcom/cygnus/bootblock.c index 37edf7f771..3c6d242d76 100644 --- a/src/soc/broadcom/cygnus/bootblock.c +++ b/src/soc/broadcom/cygnus/bootblock.c @@ -17,13 +17,20 @@ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ +#include <arch/cache.h> #include <bootblock_common.h> -#include <console/console.h> +#include <stddef.h> +#include <symbols.h> void bootblock_soc_init(void) { /* - * typically, this is the place where mmu is initialized to enable - * cache. it helps speed up vboot verification. + * not only for speed but for preventing the cpu from crashing. + * the cpu is not happy when cache is cleaned without mmu turned on. */ + mmu_init(); + mmu_config_range(0, 4096, DCACHE_OFF); + mmu_config_range_kb((uintptr_t)_sram/KiB, _sram_size/KiB, + DCACHE_WRITETHROUGH); + dcache_mmu_enable(); } diff --git a/src/soc/broadcom/cygnus/include/soc/memlayout.ld b/src/soc/broadcom/cygnus/include/soc/memlayout.ld index c48c1bc221..cfa50a544f 100644 --- a/src/soc/broadcom/cygnus/include/soc/memlayout.ld +++ b/src/soc/broadcom/cygnus/include/soc/memlayout.ld @@ -31,6 +31,7 @@ SECTIONS SRAM_START(0x02000000) REGION(reserved_for_system_status, 0x02000000, 4K, 4) TTB(0x02004000, 16K) /* must be aligned to 16K */ + TTB_SUBTABLES(0x02008000, 1K) REGION(reserved_for_maskrom, 0x02009400, 4K, 4) BOOTBLOCK(0x0200A440, 18K) PRERAM_CBMEM_CONSOLE(0x0200F000, 4K) |