| // SPDX-License-Identifier: GPL-2.0+ |
| * Copyright (C) 2022 StarFive Technology Co., Ltd. |
| * Author: Yanhong Wang<yanhong.wang@starfivetech.com> |
| #include <linux/bitops.h> |
| #define JH7110_L2_PREFETCHER_BASE_ADDR 0x2030000 |
| #define JH7110_L2_PREFETCHER_HART_OFFSET 0x2000 |
| /* enable U74-mc hart1~hart4 prefetcher */ |
| static void enable_prefetcher(void) |
| /* JH7110 use U74MC CORE IP, it include five cores(one S7 and four U7), |
| * but only U7 cores support prefetcher configuration |
| for (hart = 1; hart < 5; hart++) { |
| reg = (void *)(u64)(JH7110_L2_PREFETCHER_BASE_ADDR |
| + hart * JH7110_L2_PREFETCHER_HART_OFFSET); |
| mb(); /* memory barrier */ |
| mb(); /* memory barrier */ |