diff options
author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2016-04-21 12:37:25 +0200 |
---|---|---|
committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2016-04-22 09:25:10 +0200 |
commit | c287dc0f4642544f001ad192794df311d640a3a7 (patch) | |
tree | 27d087006be91daa3a2d9109e36d8e419df3d0b6 /c | |
parent | bsp/qoriq: Optionally initialize register HID0 (diff) | |
download | rtems-c287dc0f4642544f001ad192794df311d640a3a7.tar.bz2 |
bsp/qoriq: Flush and invalidate all L2 caches
Diffstat (limited to 'c')
-rw-r--r-- | c/src/lib/libbsp/powerpc/qoriq/Makefile.am | 1 | ||||
-rw-r--r-- | c/src/lib/libbsp/powerpc/qoriq/configure.ac | 14 | ||||
-rw-r--r-- | c/src/lib/libbsp/powerpc/qoriq/start/start.S | 32 | ||||
-rw-r--r-- | c/src/lib/libbsp/powerpc/qoriq/startup/l2cache.S | 43 |
4 files changed, 67 insertions, 23 deletions
diff --git a/c/src/lib/libbsp/powerpc/qoriq/Makefile.am b/c/src/lib/libbsp/powerpc/qoriq/Makefile.am index a564c2d465..936f857004 100644 --- a/c/src/lib/libbsp/powerpc/qoriq/Makefile.am +++ b/c/src/lib/libbsp/powerpc/qoriq/Makefile.am @@ -70,6 +70,7 @@ libbsp_a_SOURCES += \ ../shared/startup/bspidle.c \ ../shared/uboot_getenv.c \ ../shared/uboot_dump_bdinfo.c \ + startup/l2cache.S \ startup/mmu.c \ startup/mmu-tlb1.S \ startup/mmu-config.c \ diff --git a/c/src/lib/libbsp/powerpc/qoriq/configure.ac b/c/src/lib/libbsp/powerpc/qoriq/configure.ac index 66f26050aa..a37c9cfb86 100644 --- a/c/src/lib/libbsp/powerpc/qoriq/configure.ac +++ b/c/src/lib/libbsp/powerpc/qoriq/configure.ac @@ -172,9 +172,17 @@ RTEMS_BSPOPTS_SET([QORIQ_HAS_HYPERVISOR_MODE],[qoriq_t*],[1]) RTEMS_BSPOPTS_SET([QORIQ_HAS_HYPERVISOR_MODE],[*],[]) RTEMS_BSPOPTS_HELP([QORIQ_HAS_HYPERVISOR_MODE],[defined if the processor core has a hypervisor mode]) -RTEMS_BSPOPTS_SET([QORIQ_L2CSR0],[qoriq_t*],[0xfec20000]) -RTEMS_BSPOPTS_SET([QORIQ_L2CSR0],[*],[]) -RTEMS_BSPOPTS_HELP([QORIQ_L2CSR0],[address of L2CSR0 register]) +RTEMS_BSPOPTS_SET([QORIQ_CLUSTER_1_L2CSR0],[qoriq_t*],[0xfec20000]) +RTEMS_BSPOPTS_SET([QORIQ_CLUSTER_1_L2CSR0],[*],[]) +RTEMS_BSPOPTS_HELP([QORIQ_CLUSTER_1_L2CSR0],[address of Cluster 1 L2CSR0 register]) + +RTEMS_BSPOPTS_SET([QORIQ_CLUSTER_2_L2CSR0],[qoriq_t4240*],[0xfec60000]) +RTEMS_BSPOPTS_SET([QORIQ_CLUSTER_2_L2CSR0],[*],[]) +RTEMS_BSPOPTS_HELP([QORIQ_CLUSTER_2_L2CSR0],[address of Cluster 2 L2CSR0 register]) + +RTEMS_BSPOPTS_SET([QORIQ_CLUSTER_3_L2CSR0],[qoriq_t4240*],[0xfeca0000]) +RTEMS_BSPOPTS_SET([QORIQ_CLUSTER_3_L2CSR0],[*],[]) +RTEMS_BSPOPTS_HELP([QORIQ_CLUSTER_3_L2CSR0],[address of Cluster 3 L2CSR0 register]) RTEMS_BSPOPTS_SET([QORIQ_CLOCK_TIMER],[qoriq_core_1],[4]) RTEMS_BSPOPTS_SET([QORIQ_CLOCK_TIMER],[*],[0]) diff --git a/c/src/lib/libbsp/powerpc/qoriq/start/start.S b/c/src/lib/libbsp/powerpc/qoriq/start/start.S index b0e4960819..f9ac6a81cd 100644 --- a/c/src/lib/libbsp/powerpc/qoriq/start/start.S +++ b/c/src/lib/libbsp/powerpc/qoriq/start/start.S @@ -80,27 +80,19 @@ _start: bne 1b isync -#ifdef QORIQ_L2CSR0 - /* Flush L2 cache of first cluster */ - LWI r4, QORIQ_L2CSR0 - lwz r3, 0(r4) - oris r3, r3, FSL_EIS_L2CSR0_L2FL >> 16 - stw r3, 0(r4) -1: - lwz r3, 0(r4) - andis. r3, r3, FSL_EIS_L2CSR0_L2FL >> 16 - bne 1b - isync +#ifdef QORIQ_CLUSTER_1_L2CSR0 + LWI r3, QORIQ_CLUSTER_1_L2CSR0 + bl qoriq_l2cache_flush_invalidate +#endif - /* Invalidate L2 cache of first cluster */ - lwz r3, 0(r4) - oris r3, r3, FSL_EIS_L2CSR0_L2FI >> 16 - stw r3, 0(r4) -1: - lwz r3, 0(r4) - andis. r3, r3, FSL_EIS_L2CSR0_L2FI >> 16 - bne 1b - isync +#ifdef QORIQ_CLUSTER_2_L2CSR0 + LWI r3, QORIQ_CLUSTER_2_L2CSR0 + bl qoriq_l2cache_flush_invalidate +#endif + +#ifdef QORIQ_CLUSTER_3_L2CSR0 + LWI r3, QORIQ_CLUSTER_3_L2CSR0 + bl qoriq_l2cache_flush_invalidate #endif /* Get start stack */ diff --git a/c/src/lib/libbsp/powerpc/qoriq/startup/l2cache.S b/c/src/lib/libbsp/powerpc/qoriq/startup/l2cache.S new file mode 100644 index 0000000000..1c57659aa1 --- /dev/null +++ b/c/src/lib/libbsp/powerpc/qoriq/startup/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 |