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31 lines
709 B
31 lines
709 B
// SPDX-License-Identifier: GPL-2.0 |
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// |
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// Copyright (c) 2009-2011 Samsung Electronics Co., Ltd. |
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// http://www.samsung.com |
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// |
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// Samsung CPU Support |
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#include <linux/module.h> |
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#include <linux/kernel.h> |
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#include <linux/init.h> |
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#include <linux/io.h> |
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#include <mach/map-base.h> |
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#include "cpu.h" |
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unsigned long samsung_cpu_id; |
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void __init s3c64xx_init_cpu(void) |
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{ |
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samsung_cpu_id = readl_relaxed(S3C_VA_SYS + 0x118); |
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if (!samsung_cpu_id) { |
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/* |
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* S3C6400 has the ID register in a different place, |
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* and needs a write before it can be read. |
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*/ |
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writel_relaxed(0x0, S3C_VA_SYS + 0xA1C); |
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samsung_cpu_id = readl_relaxed(S3C_VA_SYS + 0xA1C); |
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} |
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pr_info("Samsung CPU ID: 0x%08lx\n", samsung_cpu_id); |
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}
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