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// SPDX-License-Identifier: GPL-2.0
/*
* board/renesas/stout/stout.c
* This file is Stout board support.
*
* Copyright (C) 2015 Renesas Electronics Europe GmbH
* Copyright (C) 2015 Renesas Electronics Corporation
* Copyright (C) 2015 Cogent Embedded, Inc.
*/
#include <common.h>
#include <env.h>
#include <init.h>
#include <malloc.h>
#include <netdev.h>
#include <dm.h>
#include <dm/platform_data/serial_sh.h>
#include <env_internal.h>
#include <asm/processor.h>
#include <asm/mach-types.h>
#include <asm/io.h>
#include <linux/bitops.h>
#include <linux/delay.h>
#include <linux/errno.h>
#include <asm/arch/sys_proto.h>
#include <asm/gpio.h>
#include <asm/arch/rmobile.h>
#include <asm/arch/rcar-mstp.h>
#include <asm/arch/mmc.h>
#include <asm/arch/sh_sdhi.h>
#include <miiphy.h>
#include <i2c.h>
#include <mmc.h>
#include "qos.h"
#include "cpld.h"
DECLARE_GLOBAL_DATA_PTR;
#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;
/* Watchdog init */
writel(0xA5A5A500, &rwdt->rwtcsra);
writel(0xA5A5A500, &swdt->swtcsra);
/* CPU frequency setting. Set to 1.4GHz */
if (rmobile_get_cpu_rev_integer() >= R8A7790_CUT_ES2X) {
u32 stat = 0;
u32 stc = ((1400 / CLK2MHZ(CONFIG_SYS_CLK_FREQ)) - 1)
<< PLL0_STC_BIT;
clrsetbits_le32(PLL0CR, PLL0_STC_MASK, stc);
do {
stat = readl(PLLECR) & PLL0ST;
} while (stat == 0x0);
}
/* QoS(Quality-of-Service) Init */
qos_init();
}
#define TMU0_MSTP125 BIT(25)
#define SD2CKCR 0xE6150078
#define SD2_97500KHZ 0x7
int board_early_init_f(void)
{
/* TMU0 */
mstp_clrbits_le32(MSTPSR1, SMSTPCR1, TMU0_MSTP125);
/*
* SD0 clock is set to 97.5MHz by default.
* Set SD2 to the 97.5MHz as well.
*/
writel(SD2_97500KHZ, SD2CKCR);
return 0;
}
#define ETHERNET_PHY_RESET 123 /* GPIO 3 31 */
int board_init(void)
{
/* adress of boot parameters */
gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
cpld_init();
/* Force ethernet PHY out of reset */
gpio_request(ETHERNET_PHY_RESET, "phy_reset");
gpio_direction_output(ETHERNET_PHY_RESET, 0);
mdelay(20);
gpio_direction_output(ETHERNET_PHY_RESET, 1);
return 0;
}
int dram_init(void)
{
if (fdtdec_setup_mem_size_base() != 0)
return -EINVAL;
return 0;
}
int dram_init_banksize(void)
{
fdtdec_setup_memory_banksize();
return 0;
}
/* Stout has KSZ8041NL/RNL */
#define PHY_CONTROL1 0x1E
#define PHY_LED_MODE 0xC000
#define PHY_LED_MODE_ACK 0x4000
int board_phy_config(struct phy_device *phydev)
{
int ret = phy_read(phydev, MDIO_DEVAD_NONE, PHY_CONTROL1);
ret &= ~PHY_LED_MODE;
ret |= PHY_LED_MODE_ACK;
ret = phy_write(phydev, MDIO_DEVAD_NONE, PHY_CONTROL1, (u16)ret);
return 0;
}
enum env_location env_get_location(enum env_operation op, int prio)
{
const u32 load_magic = 0xb33fc0de;
/* Block environment access if loaded using JTAG */
if ((readl(CONFIG_SPL_TEXT_BASE + 0x24) == load_magic) &&
(op != ENVOP_INIT))
return ENVL_UNKNOWN;
if (prio)
return ENVL_UNKNOWN;
return ENVL_SPI_FLASH;
}
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