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https://github.com/brain-hackers/u-boot-brain
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e27d6c7d32
Currently, uniphier_get_soc_type() converts the SoC ID (this is read from the revision register) to an enum symbol to use it for SoC identification. Come to think of it, there is no need for the conversion in the first place. Using the SoC ID from the register as-is a straightforward way. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
36 lines
697 B
C
36 lines
697 B
C
/*
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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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* SPDX-License-Identifier: GPL-2.0+
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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_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(0x3, 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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