diff options
Diffstat (limited to 'arch/csky/abiv2/inc/abi/entry.h')
| -rw-r--r-- | arch/csky/abiv2/inc/abi/entry.h | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/arch/csky/abiv2/inc/abi/entry.h b/arch/csky/abiv2/inc/abi/entry.h index 6a0df655182c..c0a76c43cded 100644 --- a/arch/csky/abiv2/inc/abi/entry.h +++ b/arch/csky/abiv2/inc/abi/entry.h @@ -163,9 +163,29 @@ .endm .macro SETUP_MMU rx - lrw \rx, PHYS_OFFSET | 0xe + /* Check MMU on | off */ + mfcr \rx, cr18 + btsti \rx, 0 + bt 1f + grs \rx, 1f + br 2f +1: + /* + * cr<30, 15> format: + * 31 - 29 | 28 - 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 + * BA Reserved SH WA B SO SEC C D V + */ + mfcr \rx, cr<30, 15> +2: + lsri \rx, 28 + lsli \rx, 28 + addi \rx, 0x1ce mtcr \rx, cr<30, 15> - lrw \rx, (PHYS_OFFSET + 0x20000000) | 0xe + + lsri \rx, 28 + addi \rx, 2 + lsli \rx, 28 + addi \rx, 0x1ce mtcr \rx, cr<31, 15> .endm |