diff options
Diffstat (limited to 'bsps/powerpc/qoriq/start/l2cache.S')
| -rw-r--r-- | bsps/powerpc/qoriq/start/l2cache.S | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/bsps/powerpc/qoriq/start/l2cache.S b/bsps/powerpc/qoriq/start/l2cache.S new file mode 100644 index 0000000000..1c57659aa1 --- /dev/null +++ b/bsps/powerpc/qoriq/start/l2cache.S @@ -0,0 +1,43 @@ +/* + * Copyright (c) 2015, 2016 embedded brains GmbH. All rights reserved. + * + * embedded brains GmbH + * Dornierstr. 4 + * 82178 Puchheim + * Germany + * <rtems@embedded-brains.de> + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ + +#include <libcpu/powerpc-utility.h> + + .global qoriq_l2cache_flush_invalidate + + .section ".bsp_start_text", "ax" + +qoriq_l2cache_flush_invalidate: + + /* Flush L2 cache */ + lwz r4, 0(r3) + oris r4, r4, FSL_EIS_L2CSR0_L2FL >> 16 + stw r4, 0(r3) +1: + lwz r4, 0(r3) + andis. r4, r4, FSL_EIS_L2CSR0_L2FL >> 16 + bne 1b + isync + + /* Invalidate L2 cache */ + lwz r4, 0(r3) + oris r4, r4, FSL_EIS_L2CSR0_L2FI >> 16 + stw r4, 0(r3) +1: + lwz r4, 0(r3) + andis. r4, r4, FSL_EIS_L2CSR0_L2FI >> 16 + bne 1b + isync + + blr |