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https://github.com/brain-hackers/u-boot-brain
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ba9f56f3d4
This allows board to override print_cpuinfo() because they might know better which ARChitect template was used. This way we may not only derive base architecture type and version but more meaningful things like "ARC EM7D" instead of simple "ARC EM", "ARC HS36" instead of "ARC HS". Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
69 lines
1.3 KiB
C
69 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2013-2014, 2018 Synopsys, Inc. All rights reserved.
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*/
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#include <common.h>
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#include <asm/arcregs.h>
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#include <asm/cache.h>
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DECLARE_GLOBAL_DATA_PTR;
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int arch_cpu_init(void)
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{
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timer_init();
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gd->cpu_clk = CONFIG_SYS_CLK_FREQ;
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gd->ram_size = CONFIG_SYS_SDRAM_SIZE;
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cache_init();
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return 0;
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}
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int arch_early_init_r(void)
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{
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gd->bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
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gd->bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
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return 0;
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}
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/* This is a dummy function on arc */
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int dram_init(void)
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{
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return 0;
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}
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#ifdef CONFIG_DISPLAY_CPUINFO
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const char *decode_identity(void)
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{
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int arcver = read_aux_reg(ARC_AUX_IDENTITY) & 0xff;
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switch (arcver) {
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/* ARCompact cores */
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case 0x32: return "ARC 700 v4.4-4.5";
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case 0x33: return "ARC 700 v4.6-v4.9";
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case 0x34: return "ARC 700 v4.10";
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case 0x35: return "ARC 700 v4.11";
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/* ARCv2 cores */
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case 0x41: return "ARC EM v1.1a";
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case 0x42: return "ARC EM v3.0";
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case 0x43: return "ARC EM v4.0";
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case 0x50: return "ARC HS v1.0";
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case 0x51: return "ARC EM v2.0";
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case 0x52: return "ARC EM v2.1";
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case 0x53: return "ARC HS v3.0";
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case 0x54: return "ARC HS v4.0";
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default: return "Unknown ARC core";
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}
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}
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__weak int print_cpuinfo(void)
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{
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printf("CPU: %s\n", decode_identity());
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return 0;
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}
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#endif /* CONFIG_DISPLAY_CPUINFO */
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