| /* |
| * Copyright (C) 2019 Marvell International Ltd. |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| * https://spdx.org/licenses |
| */ |
| |
| #include <a8k_plat_def.h> |
| #include <common/debug.h> |
| #include <lib/mmio.h> |
| #include <mvebu.h> |
| |
| /* CONFI REGISTERS */ |
| #define MG_CM3_CONFI_BASE(CP) (MVEBU_CP_REGS_BASE(CP) + 0x100000) |
| #define MG_CM3_CONFI_GLOB_CFG_REG(CP) (MG_CM3_CONFI_BASE(CP) + 0x2B500) |
| #define CM3_CPU_EN_BIT BIT(28) |
| #define MG_CM3_MG_INT_MFX_REG(CP) (MG_CM3_CONFI_BASE(CP) + 0x2B054) |
| #define CM3_SYS_RESET_BIT BIT(0) |
| |
| void mg_start_ap_fw(int cp_nr) |
| { |
| if (mmio_read_32(MG_CM3_CONFI_GLOB_CFG_REG(cp_nr)) & CM3_CPU_EN_BIT) { |
| VERBOSE("cm3 already running\n"); |
| return; /* cm3 already running */ |
| } |
| |
| mmio_setbits_32(MG_CM3_CONFI_GLOB_CFG_REG(cp_nr), CM3_CPU_EN_BIT); |
| mmio_setbits_32(MG_CM3_MG_INT_MFX_REG(cp_nr), CM3_SYS_RESET_BIT); |
| |
| /* TODO: add some routine for checking if ap process is running, if not |
| * disable cm3. |
| */ |
| } |