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bsp/qoriq: Flush and invalidate all L2 caches

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This commit is contained in:
Sebastian Huber
2016-04-21 12:37:25 +02:00
parent 6a46d9974f
commit c287dc0f46
4 changed files with 67 additions and 23 deletions
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1
c/src/lib/libbsp/powerpc/qoriq/Makefile.am
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@@ -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 \

14
c/src/lib/libbsp/powerpc/qoriq/configure.ac
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@@ -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])

32
c/src/lib/libbsp/powerpc/qoriq/start/start.S
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@@ -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 */

43
c/src/lib/libbsp/powerpc/qoriq/startup/l2cache.S Normal file
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@@ -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