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- // SPDX-License-Identifier: GPL-2.0
- /*
- * arch/arm/cpu/armv7/rmobile/cpu_info-rcar.c
- *
- * Copyright (C) 2013,2014 Renesas Electronics Corporation
- */
- #include <common.h>
- #include <asm/io.h>
- #define PRR_MASK 0x7fff
- #define R8A7796_REV_1_0 0x5200
- #define R8A7796_REV_1_1 0x5210
- #define R8A7796_REV_1_3 0x5211
- static u32 rmobile_get_prr(void)
- {
- #ifdef CONFIG_RCAR_GEN3
- return readl(0xFFF00044);
- #else
- return readl(0xFF000044);
- #endif
- }
- u32 rmobile_get_cpu_type(void)
- {
- return (rmobile_get_prr() & 0x00007F00) >> 8;
- }
- u32 rmobile_get_cpu_rev_integer(void)
- {
- const u32 prr = rmobile_get_prr();
- const u32 rev = prr & PRR_MASK;
- if (rev == R8A7796_REV_1_1 || rev == R8A7796_REV_1_3)
- return 1;
- else
- return ((prr & 0x000000F0) >> 4) + 1;
- }
- u32 rmobile_get_cpu_rev_fraction(void)
- {
- const u32 prr = rmobile_get_prr();
- const u32 rev = prr & PRR_MASK;
- if (rev == R8A7796_REV_1_1)
- return 1;
- else if (rev == R8A7796_REV_1_3)
- return 3;
- else
- return prr & 0x0000000F;
- }
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