1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2022 StarFive Technology Co., Ltd.
4 * Author: Yanhong Wang<yanhong.wang@starfivetech.com>
10 #include <fdt_support.h>
12 #include <asm/arch/eeprom.h>
14 #include <asm/sections.h>
15 #include <linux/bitops.h>
17 DECLARE_GLOBAL_DATA_PTR;
18 #define JH7110_L2_PREFETCHER_BASE_ADDR 0x2030000
19 #define JH7110_L2_PREFETCHER_HART_OFFSET 0x2000
20 #define FDTFILE_VISIONFIVE2_1_2A \
21 "starfive/jh7110-starfive-visionfive-2-v1.2a.dtb"
22 #define FDTFILE_VISIONFIVE2_1_3B \
23 "starfive/jh7110-starfive-visionfive-2-v1.3b.dtb"
25 /* enable U74-mc hart1~hart4 prefetcher */
26 static void enable_prefetcher(void)
31 /* JH7110 use U74MC CORE IP, it include five cores(one S7 and four U7),
32 * but only U7 cores support prefetcher configuration
34 for (hart = 1; hart < 5; hart++) {
35 reg = (void *)(u64)(JH7110_L2_PREFETCHER_BASE_ADDR
36 + hart * JH7110_L2_PREFETCHER_HART_OFFSET);
38 mb(); /* memory barrier */
39 setbits_le32(reg, 0x1);
40 mb(); /* memory barrier */
45 * set_fdtfile() - set the $fdtfile variable based on the board revision
47 static void set_fdtfile(void)
52 version = get_pcb_revision_from_eeprom();
56 fdtfile = FDTFILE_VISIONFIVE2_1_2A;
62 fdtfile = FDTFILE_VISIONFIVE2_1_3B;
66 env_set("fdtfile", fdtfile);
77 int board_late_init(void)
79 if (CONFIG_IS_ENABLED(ID_EEPROM))
85 void *board_fdt_blob_setup(int *err)
88 if (IS_ENABLED(CONFIG_OF_SEPARATE) || IS_ENABLED(CONFIG_OF_BOARD)) {
89 if (gd->arch.firmware_fdt_addr)
90 return (ulong *)(uintptr_t)gd->arch.firmware_fdt_addr;
93 return (ulong *)&_end;
96 int ft_board_setup(void *blob, struct bd_info *bd)
98 return fdt_fixup_memory(blob, 0x40000000, gd->ram_size);