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https://github.com/brain-hackers/u-boot-brain
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d41b358fb3
The SG_* macros represent the address of SoC-glue registers. For a planned new SoC, its base address will be changed. Turn the SG_* macros into the offset from the base address. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
35 lines
704 B
C
35 lines
704 B
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2017 Socionext Inc.
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* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
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*/
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#include <linux/io.h>
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#include <linux/types.h>
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#include "sg-regs.h"
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#include "soc-info.h"
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static unsigned int __uniphier_get_revision_field(unsigned int mask,
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unsigned int shift)
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{
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u32 revision = readl(sg_base + SG_REVISION);
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return (revision >> shift) & mask;
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}
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unsigned int uniphier_get_soc_id(void)
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{
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return __uniphier_get_revision_field(0xff, 16);
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}
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unsigned int uniphier_get_soc_model(void)
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{
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return __uniphier_get_revision_field(0x7, 8);
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}
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unsigned int uniphier_get_soc_revision(void)
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{
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return __uniphier_get_revision_field(0x1f, 0);
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}
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