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https://github.com/brain-hackers/u-boot-brain
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7d7913689a
Add support to identify R8A7796 r1.3 SoC. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
52 lines
985 B
C
52 lines
985 B
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* arch/arm/cpu/armv7/rmobile/cpu_info-rcar.c
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*
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* Copyright (C) 2013,2014 Renesas Electronics Corporation
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*/
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#include <common.h>
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#include <asm/io.h>
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#define PRR_MASK 0x7fff
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#define R8A7796_REV_1_0 0x5200
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#define R8A7796_REV_1_1 0x5210
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#define R8A7796_REV_1_3 0x5211
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static u32 rmobile_get_prr(void)
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{
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#ifdef CONFIG_RCAR_GEN3
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return readl(0xFFF00044);
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#else
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return readl(0xFF000044);
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#endif
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}
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u32 rmobile_get_cpu_type(void)
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{
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return (rmobile_get_prr() & 0x00007F00) >> 8;
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}
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u32 rmobile_get_cpu_rev_integer(void)
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{
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const u32 prr = rmobile_get_prr();
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const u32 rev = prr & PRR_MASK;
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if (rev == R8A7796_REV_1_1 || rev == R8A7796_REV_1_3)
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return 1;
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else
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return ((prr & 0x000000F0) >> 4) + 1;
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}
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u32 rmobile_get_cpu_rev_fraction(void)
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{
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const u32 prr = rmobile_get_prr();
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const u32 rev = prr & PRR_MASK;
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if (rev == R8A7796_REV_1_1)
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return 1;
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else if (rev == R8A7796_REV_1_3)
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return 3;
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else
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return prr & 0x0000000F;
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}
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