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// SPDX-License-Identifier: GPL-2.0+
/*
* board/renesas/eagle/eagle.c
* This file is Eagle board support.
*
* Copyright (C) 2017 Marek Vasut <marek.vasut+renesas@gmail.com>
*/
#include <common.h>
#include <malloc.h>
#include <netdev.h>
#include <dm.h>
#include <dm/platform_data/serial_sh.h>
#include <asm/processor.h>
#include <asm/mach-types.h>
#include <asm/io.h>
#include <linux/errno.h>
#include <asm/arch/sys_proto.h>
#include <asm/gpio.h>
#include <asm/arch/gpio.h>
#include <asm/arch/rmobile.h>
#include <asm/arch/rcar-mstp.h>
#include <asm/arch/sh_sdhi.h>
#include <i2c.h>
#include <mmc.h>
DECLARE_GLOBAL_DATA_PTR;
#define CPGWPR 0xE6150900
#define CPGWPCR 0xE6150904
/* PLL */
#define PLL0CR 0xE61500D8
#define PLL0_STC_MASK 0x7F000000
#define PLL0_STC_OFFSET 24
#define CLK2MHZ(clk) (clk / 1000 / 1000)
void s_init(void)
{
struct rcar_rwdt *rwdt = (struct rcar_rwdt *)RWDT_BASE;
struct rcar_swdt *swdt = (struct rcar_swdt *)SWDT_BASE;
u32 stc;
/* Watchdog init */
writel(0xA5A5A500, &rwdt->rwtcsra);
writel(0xA5A5A500, &swdt->swtcsra);
/* CPU frequency setting. Set to 0.8GHz */
stc = ((800 / CLK2MHZ(CONFIG_SYS_CLK_FREQ)) - 1) << PLL0_STC_OFFSET;
clrsetbits_le32(PLL0CR, PLL0_STC_MASK, stc);
}
int board_early_init_f(void)
{
/* Unlock CPG access */
writel(0xA5A5FFFF, CPGWPR);
writel(0x5A5A0000, CPGWPCR);
return 0;
}
int board_init(void)
{
/* adress of boot parameters */
gd->bd->bi_boot_params = CONFIG_SYS_TEXT_BASE + 0x50000;
return 0;
}
#define RST_BASE 0xE6160000
#define RST_CA57RESCNT (RST_BASE + 0x40)
#define RST_CA53RESCNT (RST_BASE + 0x44)
#define RST_RSTOUTCR (RST_BASE + 0x58)
#define RST_CA57_CODE 0xA5A5000F
#define RST_CA53_CODE 0x5A5A000F
void reset_cpu(ulong addr)
{
unsigned long midr, cputype;
asm volatile("mrs %0, midr_el1" : "=r" (midr));
cputype = (midr >> 4) & 0xfff;
if (cputype == 0xd03)
writel(RST_CA53_CODE, RST_CA53RESCNT);
else if (cputype == 0xd07)
writel(RST_CA57_CODE, RST_CA57RESCNT);
else
hang();
}
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