| Joel Hutton | a7c4687 | 2018-01-10 16:06:07 +0000 | [diff] [blame] | 1 | /* |
| John Tsichritzis | 16e6d9f | 2019-02-19 14:01:55 +0000 | [diff] [blame] | 2 | * Copyright (c) 2018-2019, ARM Limited and Contributors. All rights reserved. |
| Joel Hutton | a7c4687 | 2018-01-10 16:06:07 +0000 | [diff] [blame] | 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | */ |
| 6 | #include <arch.h> |
| 7 | #include <asm_macros.S> |
| Antonio Nino Diaz | e0f9063 | 2018-12-14 00:18:21 +0000 | [diff] [blame] | 8 | #include <common/bl_common.h> |
| 9 | #include <common/debug.h> |
| John Tsichritzis | 16e6d9f | 2019-02-19 14:01:55 +0000 | [diff] [blame] | 10 | #include <neoverse_e1.h> |
| Joel Hutton | a7c4687 | 2018-01-10 16:06:07 +0000 | [diff] [blame] | 11 | #include <cpu_macros.S> |
| Joel Hutton | a7c4687 | 2018-01-10 16:06:07 +0000 | [diff] [blame] | 12 | #include <plat_macros.S> |
| 13 | |
| John Tsichritzis | fe6df39 | 2019-03-19 17:20:52 +0000 | [diff] [blame] | 14 | /* Hardware handled coherency */ |
| 15 | #if HW_ASSISTED_COHERENCY == 0 |
| 16 | #error "Neoverse E1 must be compiled with HW_ASSISTED_COHERENCY enabled" |
| 17 | #endif |
| 18 | |
| John Tsichritzis | 7557c66 | 2019-06-03 13:54:30 +0100 | [diff] [blame] | 19 | /* 64-bit only core */ |
| 20 | #if CTX_INCLUDE_AARCH32_REGS == 1 |
| 21 | #error "Neoverse-E1 supports only AArch64. Compile with CTX_INCLUDE_AARCH32_REGS=0" |
| 22 | #endif |
| 23 | |
| John Tsichritzis | 16e6d9f | 2019-02-19 14:01:55 +0000 | [diff] [blame] | 24 | func neoverse_e1_cpu_pwr_dwn |
| 25 | mrs x0, NEOVERSE_E1_CPUPWRCTLR_EL1 |
| 26 | orr x0, x0, #NEOVERSE_E1_CPUPWRCTLR_EL1_CORE_PWRDN_BIT |
| 27 | msr NEOVERSE_E1_CPUPWRCTLR_EL1, x0 |
| Joel Hutton | a7c4687 | 2018-01-10 16:06:07 +0000 | [diff] [blame] | 28 | isb |
| 29 | ret |
| John Tsichritzis | 16e6d9f | 2019-02-19 14:01:55 +0000 | [diff] [blame] | 30 | endfunc neoverse_e1_cpu_pwr_dwn |
| Joel Hutton | a7c4687 | 2018-01-10 16:06:07 +0000 | [diff] [blame] | 31 | |
| Soby Mathew | 0980dce | 2018-09-17 04:34:35 +0100 | [diff] [blame] | 32 | #if REPORT_ERRATA |
| 33 | /* |
| John Tsichritzis | 16e6d9f | 2019-02-19 14:01:55 +0000 | [diff] [blame] | 34 | * Errata printing function for Neoverse N1. Must follow AAPCS. |
| Soby Mathew | 0980dce | 2018-09-17 04:34:35 +0100 | [diff] [blame] | 35 | */ |
| John Tsichritzis | 16e6d9f | 2019-02-19 14:01:55 +0000 | [diff] [blame] | 36 | func neoverse_e1_errata_report |
| Soby Mathew | 0980dce | 2018-09-17 04:34:35 +0100 | [diff] [blame] | 37 | ret |
| John Tsichritzis | 16e6d9f | 2019-02-19 14:01:55 +0000 | [diff] [blame] | 38 | endfunc neoverse_e1_errata_report |
| Soby Mathew | 0980dce | 2018-09-17 04:34:35 +0100 | [diff] [blame] | 39 | #endif |
| 40 | |
| 41 | |
| John Tsichritzis | 16e6d9f | 2019-02-19 14:01:55 +0000 | [diff] [blame] | 42 | .section .rodata.neoverse_e1_regs, "aS" |
| 43 | neoverse_e1_regs: /* The ascii list of register names to be reported */ |
| Joel Hutton | a7c4687 | 2018-01-10 16:06:07 +0000 | [diff] [blame] | 44 | .asciz "cpuectlr_el1", "" |
| 45 | |
| John Tsichritzis | 16e6d9f | 2019-02-19 14:01:55 +0000 | [diff] [blame] | 46 | func neoverse_e1_cpu_reg_dump |
| 47 | adr x6, neoverse_e1_regs |
| 48 | mrs x8, NEOVERSE_E1_ECTLR_EL1 |
| Joel Hutton | a7c4687 | 2018-01-10 16:06:07 +0000 | [diff] [blame] | 49 | ret |
| John Tsichritzis | 16e6d9f | 2019-02-19 14:01:55 +0000 | [diff] [blame] | 50 | endfunc neoverse_e1_cpu_reg_dump |
| Joel Hutton | a7c4687 | 2018-01-10 16:06:07 +0000 | [diff] [blame] | 51 | |
| John Tsichritzis | 16e6d9f | 2019-02-19 14:01:55 +0000 | [diff] [blame] | 52 | declare_cpu_ops neoverse_e1, NEOVERSE_E1_MIDR, \ |
| Joel Hutton | a7c4687 | 2018-01-10 16:06:07 +0000 | [diff] [blame] | 53 | CPU_NO_RESET_FUNC, \ |
| John Tsichritzis | 16e6d9f | 2019-02-19 14:01:55 +0000 | [diff] [blame] | 54 | neoverse_e1_cpu_pwr_dwn |