aboutsummaryrefslogtreecommitdiff
path: root/lib/cpus
diff options
context:
space:
mode:
authorImre Kis <imre.kis@arm.com>2019-07-22 14:36:30 +0200
committerImre Kis <imre.kis@arm.com>2019-10-03 15:38:31 +0200
commit78f02ae2968dd0a78e0e686f8cf0886fa296f4eb (patch)
tree424d6a1b5bcd1320b0b6971b3f52253fc0975277 /lib/cpus
parent2d35bc1386ee80904be0df7dd5b3eb958dc685e2 (diff)
downloadtrusted-firmware-a-78f02ae2968dd0a78e0e686f8cf0886fa296f4eb.tar.gz
Introducing support for Cortex-A65AE
Change-Id: I1ea2bf088f1e001cdbd377cbfb7c6a2866af0422 Signed-off-by: Imre Kis <imre.kis@arm.com>
Diffstat (limited to 'lib/cpus')
-rw-r--r--lib/cpus/aarch64/cortex_a65ae.S81
1 files changed, 81 insertions, 0 deletions
diff --git a/lib/cpus/aarch64/cortex_a65ae.S b/lib/cpus/aarch64/cortex_a65ae.S
new file mode 100644
index 0000000000..ac6583ebc1
--- /dev/null
+++ b/lib/cpus/aarch64/cortex_a65ae.S
@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2019, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+#include <arch.h>
+
+#include <asm_macros.S>
+#include <common/bl_common.h>
+#include <common/debug.h>
+#include <cortex_a65ae.h>
+#include <cpu_macros.S>
+#include <plat_macros.S>
+
+/* Hardware handled coherency */
+#if !HW_ASSISTED_COHERENCY
+#error "Cortex-A65AE must be compiled with HW_ASSISTED_COHERENCY enabled"
+#endif
+
+/* 64-bit only core */
+#if CTX_INCLUDE_AARCH32_REGS
+#error "Cortex-A65AE 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_a65ae_reset_func
+ mov x19, x30
+
+#if ERRATA_DSU_936184
+ bl errata_dsu_936184_wa
+#endif
+
+ ret x19
+endfunc cortex_a65ae_reset_func
+
+func cortex_a65ae_cpu_pwr_dwn
+ mrs x0, CORTEX_A65AE_CPUPWRCTLR_EL1
+ orr x0, x0, #CORTEX_A65AE_CPUPWRCTLR_EL1_CORE_PWRDN_BIT
+ msr CORTEX_A65AE_CPUPWRCTLR_EL1, x0
+ isb
+ ret
+endfunc cortex_a65ae_cpu_pwr_dwn
+
+#if REPORT_ERRATA
+/*
+ * Errata printing function for Cortex-A65AE. Must follow AAPCS.
+ */
+func cortex_a65ae_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_a65ae, dsu_936184
+
+ ldp x8, x30, [sp], #16
+ ret
+endfunc cortex_a65ae_errata_report
+#endif
+
+.section .rodata.cortex_a65ae_regs, "aS"
+cortex_a65ae_regs: /* The ascii list of register names to be reported */
+ .asciz "cpuectlr_el1", ""
+
+func cortex_a65ae_cpu_reg_dump
+ adr x6, cortex_a65ae_regs
+ mrs x8, CORTEX_A65AE_ECTLR_EL1
+ ret
+endfunc cortex_a65ae_cpu_reg_dump
+
+declare_cpu_ops cortex_a65ae, CORTEX_A65AE_MIDR, \
+ cortex_a65ae_reset_func, \
+ cortex_a65ae_cpu_pwr_dwn