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https://github.com/ARM-software/arm-trusted-firmware.git
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d8e919c7b8
Initial commit for Socionext UniPhier SoC support. BL1, Bl2, and BL31 are supported. Refer to docs/plat/socionext-uniphier.md for more detais. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
50 lines
945 B
C
50 lines
945 B
C
/*
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* Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <mmio.h>
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#include "uniphier.h"
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#define UNIPHIER_REVISION 0x5f800000
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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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uint32_t revision = mmio_read_32(UNIPHIER_REVISION);
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return (revision >> shift) & mask;
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}
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unsigned int uniphier_get_soc_type(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(0x07, 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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unsigned int uniphier_get_soc_id(void)
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{
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uint32_t type = uniphier_get_soc_type();
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switch (type) {
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case 0x31:
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return UNIPHIER_SOC_LD11;
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case 0x32:
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return UNIPHIER_SOC_LD20;
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case 0x35:
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return UNIPHIER_SOC_PXS3;
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default:
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return UNIPHIER_SOC_UNKNOWN;
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}
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}
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