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6674ffb51b
Add identifier for Milk-V Mars CM to dts selection callback in SPL, and to fdtfile environment variable default value selection in payload. Signed-off-by: E Shattow <e@freeshell.de> Reviewed-by: Hal Feng <hal.feng@starfivetech.com>
100 lines
2.4 KiB
C
100 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2022 StarFive Technology Co., Ltd.
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* Author: Yanhong Wang<yanhong.wang@starfivetech.com>
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*/
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#include <cpu_func.h>
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#include <dm.h>
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#include <fdt_support.h>
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#include <env.h>
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#include <log.h>
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#include <asm/arch/eeprom.h>
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#include <asm/io.h>
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#include <asm/sections.h>
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#include <linux/bitops.h>
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DECLARE_GLOBAL_DATA_PTR;
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#define JH7110_L2_PREFETCHER_BASE_ADDR 0x2030000
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#define JH7110_L2_PREFETCHER_HART_OFFSET 0x2000
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/* enable U74-mc hart1~hart4 prefetcher */
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static void enable_prefetcher(void)
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{
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u8 hart;
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u32 *reg;
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/* JH7110 use U74MC CORE IP, it include five cores(one S7 and four U7),
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* but only U7 cores support prefetcher configuration
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*/
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for (hart = 1; hart < 5; hart++) {
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reg = (void *)(u64)(JH7110_L2_PREFETCHER_BASE_ADDR
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+ hart * JH7110_L2_PREFETCHER_HART_OFFSET);
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mb(); /* memory barrier */
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setbits_le32(reg, 0x1);
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mb(); /* memory barrier */
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}
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}
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/**
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* set_fdtfile() - set the $fdtfile variable based on product data in EEPROM
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*/
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static void set_fdtfile(void)
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{
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const char *fdtfile;
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fdtfile = env_get("fdtfile");
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if (fdtfile)
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return;
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if (!get_product_id_from_eeprom()) {
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log_err("Can't read EEPROM\n");
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return;
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}
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if (!strncmp(get_product_id_from_eeprom(), "FML13V01", 8)) {
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fdtfile = "starfive/jh7110-deepcomputing-fml13v01.dtb";
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} else if (!strncmp(get_product_id_from_eeprom(), "MARS", 4)) {
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fdtfile = "starfive/jh7110-milkv-mars.dtb";
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} else if (!strncmp(get_product_id_from_eeprom(), "MARC", 4)) {
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if (get_mmc_size_from_eeprom()) {
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fdtfile = "starfive/jh7110-milkv-marscm-emmc.dtb";
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} else {
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fdtfile = "starfive/jh7110-milkv-marscm-lite.dtb";
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}
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} else if (!strncmp(get_product_id_from_eeprom(), "STAR64", 6)) {
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fdtfile = "starfive/jh7110-pine64-star64.dtb";
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} else if (!strncmp(get_product_id_from_eeprom(), "VF7110A", 7)) {
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fdtfile = "starfive/jh7110-starfive-visionfive-2-v1.2a.dtb";
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} else if (!strncmp(get_product_id_from_eeprom(), "VF7110B", 7)) {
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fdtfile = "starfive/jh7110-starfive-visionfive-2-v1.3b.dtb";
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} else {
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log_err("Unknown product\n");
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return;
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}
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env_set("fdtfile", fdtfile);
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}
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int board_init(void)
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{
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enable_caches();
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enable_prefetcher();
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return 0;
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}
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int board_late_init(void)
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{
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if (CONFIG_IS_ENABLED(ID_EEPROM))
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set_fdtfile();
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return 0;
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}
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int ft_board_setup(void *blob, struct bd_info *bd)
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{
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return fdt_fixup_memory(blob, 0x40000000, gd->ram_size);
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}
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