diff --git a/include/lib/cpus/aarch64/cortex_a65.h b/include/lib/cpus/aarch64/cortex_a65.h new file mode 100644 index 0000000..0df34c9 --- /dev/null +++ b/include/lib/cpus/aarch64/cortex_a65.h @@ -0,0 +1,31 @@ +/* + * Copyright (c) 2019, Arm Limited. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#ifndef CORTEX_A65_H +#define CORTEX_A65_H + +#include + +#define CORTEX_A65_MIDR U(0x410FD060) + +/******************************************************************************* + * CPU Extended Control register specific definitions + ******************************************************************************/ +#define CORTEX_A65_ECTLR_EL1 S3_0_C15_C1_4 + +/******************************************************************************* + * CPU Auxiliary Control register specific definitions + ******************************************************************************/ +#define CORTEX_A65_CPUACTLR_EL1 S3_0_C15_C1_0 + +/******************************************************************************* + * CPU Power Control register specific definitions + ******************************************************************************/ + +#define CORTEX_A65_CPUPWRCTLR_EL1 S3_0_C15_C2_7 +#define CORTEX_A65_CPUPWRCTLR_EL1_CORE_PWRDN_BIT (U(1) << 0) + +#endif /* CORTEX_A65_H */ diff --git a/lib/cpus/aarch64/cortex_a65.S b/lib/cpus/aarch64/cortex_a65.S new file mode 100644 index 0000000..666324c --- /dev/null +++ b/lib/cpus/aarch64/cortex_a65.S @@ -0,0 +1,81 @@ +/* + * Copyright (c) 2019, Arm Limited. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ +#include + +#include +#include +#include +#include +#include +#include + +/* Hardware handled coherency */ +#if !HW_ASSISTED_COHERENCY +#error "Cortex-A65 must be compiled with HW_ASSISTED_COHERENCY enabled" +#endif + +/* 64-bit only core */ +#if CTX_INCLUDE_AARCH32_REGS +#error "Cortex-A65 supports only AArch64. Compile with CTX_INCLUDE_AARCH32_REGS=0" +#endif + +/* ------------------------------------------------- + * The CPU Ops reset function for Cortex-A65. + * Shall clobber: x0-x19 + * ------------------------------------------------- + */ +func cortex_a65_reset_func + mov x19, x30 + +#if ERRATA_DSU_936184 + bl errata_dsu_936184_wa +#endif + + ret x19 +endfunc cortex_a65_reset_func + +func cortex_a65_cpu_pwr_dwn + mrs x0, CORTEX_A65_CPUPWRCTLR_EL1 + orr x0, x0, #CORTEX_A65_CPUPWRCTLR_EL1_CORE_PWRDN_BIT + msr CORTEX_A65_CPUPWRCTLR_EL1, x0 + isb + ret +endfunc cortex_a65_cpu_pwr_dwn + +#if REPORT_ERRATA +/* + * Errata printing function for Cortex-A65. Must follow AAPCS. + */ +func cortex_a65_errata_report + stp x8, x30, [sp, #-16]! + + bl cpu_get_rev_var + mov x8, x0 + + /* + * Report all errata. The revision-variant information is passed to + * checking functions of each errata. + */ + report_errata ERRATA_DSU_936184, cortex_a65, dsu_936184 + + ldp x8, x30, [sp], #16 + ret +endfunc cortex_a65_errata_report +#endif + +.section .rodata.cortex_a65_regs, "aS" +cortex_a65_regs: /* The ascii list of register names to be reported */ + .asciz "cpuectlr_el1", "" + +func cortex_a65_cpu_reg_dump + adr x6, cortex_a65_regs + mrs x8, CORTEX_A65_ECTLR_EL1 + ret +endfunc cortex_a65_cpu_reg_dump + +declare_cpu_ops cortex_a65, CORTEX_A65_MIDR, \ + cortex_a65_reset_func, \ + cortex_a65_cpu_pwr_dwn diff --git a/plat/arm/board/fvp/platform.mk b/plat/arm/board/fvp/platform.mk index 2bba6bd..c8e2169 100644 --- a/plat/arm/board/fvp/platform.mk +++ b/plat/arm/board/fvp/platform.mk @@ -116,7 +116,8 @@ lib/cpus/aarch64/neoverse_e1.S \ lib/cpus/aarch64/neoverse_zeus.S \ lib/cpus/aarch64/cortex_hercules.S \ - lib/cpus/aarch64/cortex_hercules_ae.S + lib/cpus/aarch64/cortex_hercules_ae.S \ + lib/cpus/aarch64/cortex_a65.S endif # AArch64/AArch32 cores FVP_CPU_LIBS += lib/cpus/aarch64/cortex_a55.S \