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| author | Etienne Carriere <etienne.carriere@linaro.org> | 2017-11-05 22:56:34 +0100 |
|---|---|---|
| committer | Etienne Carriere <etienne.carriere@linaro.org> | 2017-11-08 13:49:49 +0100 |
| commit | 6ff43c26395bb74a07e0572a61f618868837bc22 (patch) | |
| tree | 9f629143472b0cb206470cff57af20b06c76ba9e /lib | |
| parent | d56a846121136ceacca1eeabfbf440059e99acba (diff) | |
ARMv7: introduce Cortex-A7
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/cpus/aarch32/cortex_a7.S | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/lib/cpus/aarch32/cortex_a7.S b/lib/cpus/aarch32/cortex_a7.S new file mode 100644 index 00000000..0278d1fd --- /dev/null +++ b/lib/cpus/aarch32/cortex_a7.S @@ -0,0 +1,75 @@ +/* + * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <arch.h> +#include <asm_macros.S> +#include <assert_macros.S> +#include <cortex_a7.h> +#include <cpu_macros.S> + + .macro assert_cache_enabled +#if ENABLE_ASSERTIONS + ldcopr r0, SCTLR + tst r0, #SCTLR_C_BIT + ASM_ASSERT(eq) +#endif + .endm + +func cortex_a7_disable_smp + ldcopr r0, ACTLR + bic r0, #CORTEX_A7_ACTLR_SMP_BIT + stcopr r0, ACTLR + isb + dsb sy + bx lr +endfunc cortex_a7_disable_smp + +func cortex_a7_enable_smp + ldcopr r0, ACTLR + orr r0, #CORTEX_A7_ACTLR_SMP_BIT + stcopr r0, ACTLR + isb + bx lr +endfunc cortex_a7_enable_smp + +func cortex_a7_reset_func + b cortex_a7_enable_smp +endfunc cortex_a7_reset_func + +func cortex_a7_core_pwr_dwn + push {r12, lr} + + assert_cache_enabled + + /* Flush L1 cache */ + mov r0, #DC_OP_CISW + bl dcsw_op_level1 + + /* Exit cluster coherency */ + pop {r12, lr} + b cortex_a7_disable_smp +endfunc cortex_a7_core_pwr_dwn + +func cortex_a7_cluster_pwr_dwn + push {r12, lr} + + assert_cache_enabled + + /* Flush L1 caches */ + mov r0, #DC_OP_CISW + bl dcsw_op_level1 + + bl plat_disable_acp + + /* Exit cluster coherency */ + pop {r12, lr} + b cortex_a7_disable_smp +endfunc cortex_a7_cluster_pwr_dwn + +declare_cpu_ops cortex_a7, CORTEX_A7_MIDR, \ + cortex_a7_reset_func, \ + cortex_a7_core_pwr_dwn, \ + cortex_a7_cluster_pwr_dwn |