1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2022 StarFive Technology Co., Ltd.
4 * Author: Yanhong Wang<yanhong.wang@starfivetech.com>
9 #include <asm/sections.h>
12 #include <linux/bitops.h>
14 #define JH7110_L2_PREFETCHER_BASE_ADDR 0x2030000
15 #define JH7110_L2_PREFETCHER_HART_OFFSET 0x2000
17 /* enable U74-mc hart1~hart4 prefetcher */
18 static void enable_prefetcher(void)
23 /* JH7110 use U74MC CORE IP, it include five cores(one S7 and four U7),
24 * but only U7 cores support prefetcher configuration
26 for (hart = 1; hart < 5; hart++) {
27 reg = (void *)(u64)(JH7110_L2_PREFETCHER_BASE_ADDR
28 + hart * JH7110_L2_PREFETCHER_HART_OFFSET);
30 mb(); /* memory barrier */
31 setbits_le32(reg, 0x1);
32 mb(); /* memory barrier */
44 void *board_fdt_blob_setup(int *err)
47 if (IS_ENABLED(CONFIG_OF_SEPARATE) || IS_ENABLED(CONFIG_OF_BOARD)) {
48 if (gd->arch.firmware_fdt_addr)
49 return (ulong *)(uintptr_t)gd->arch.firmware_fdt_addr;
52 return (ulong *)&_end;