/*
 * board/renesas/lager/lager.c
 *     This file is lager board support.
 *
 * Copyright (C) 2013 Renesas Electronics Corporation
 * Copyright (C) 2013 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
 *
 * SPDX-License-Identifier: GPL-2.0
 */

#include <common.h>
#include <malloc.h>
#include <netdev.h>
#include <asm/processor.h>
#include <asm/mach-types.h>
#include <asm/io.h>
#include <asm/errno.h>
#include <asm/arch/sys_proto.h>
#include <asm/gpio.h>
#include <asm/arch/rmobile.h>
#include <miiphy.h>
#include <i2c.h>
#include "qos.h"

DECLARE_GLOBAL_DATA_PTR;

#define s_init_wait(cnt) \
	({	\
		u32 i = 0x10000 * cnt;	\
		while (i > 0)	\
			i--;	\
	})

#define dbpdrgd_check(bsc) \
	({	\
		while ((readl(&bsc->dbpdrgd) & 0x1) != 0x1)	\
			;	\
	})

#if defined(CONFIG_NORFLASH)
static void bsc_init(void)
{
	struct r8a7790_lbsc *lbsc = (struct r8a7790_lbsc *)LBSC_BASE;
	struct r8a7790_dbsc3 *dbsc3_0 = (struct r8a7790_dbsc3 *)DBSC3_0_BASE;

	/* LBSC */
	writel(0x00000020, &lbsc->cs0ctrl);
	writel(0x00000020, &lbsc->cs1ctrl);
	writel(0x00002020, &lbsc->ecs0ctrl);
	writel(0x00002020, &lbsc->ecs1ctrl);

	writel(0x077F077F, &lbsc->cswcr0);
	writel(0x077F077F, &lbsc->cswcr1);
	writel(0x077F077F, &lbsc->ecswcr0);
	writel(0x077F077F, &lbsc->ecswcr1);

	/* DBSC3 */
	s_init_wait(10);

	writel(0x0000A55A, &dbsc3_0->dbpdlck);
	writel(0x00000001, &dbsc3_0->dbpdrga);
	writel(0x80000000, &dbsc3_0->dbpdrgd);
	writel(0x00000004, &dbsc3_0->dbpdrga);
	dbpdrgd_check(dbsc3_0);

	writel(0x00000006, &dbsc3_0->dbpdrga);
	writel(0x0001C000, &dbsc3_0->dbpdrgd);

	writel(0x00000023, &dbsc3_0->dbpdrga);
	writel(0x00FD2480, &dbsc3_0->dbpdrgd);

	writel(0x00000010, &dbsc3_0->dbpdrga);
	writel(0xF004649B, &dbsc3_0->dbpdrgd);

	writel(0x0000000F, &dbsc3_0->dbpdrga);
	writel(0x00181EE4, &dbsc3_0->dbpdrgd);

	writel(0x0000000E, &dbsc3_0->dbpdrga);
	writel(0x33C03812, &dbsc3_0->dbpdrgd);

	writel(0x00000003, &dbsc3_0->dbpdrga);
	writel(0x0300C481, &dbsc3_0->dbpdrgd);

	writel(0x00000007, &dbsc3_0->dbkind);
	writel(0x10030A02, &dbsc3_0->dbconf0);
	writel(0x00000001, &dbsc3_0->dbphytype);
	writel(0x00000000, &dbsc3_0->dbbl);
	writel(0x0000000B, &dbsc3_0->dbtr0);
	writel(0x00000008, &dbsc3_0->dbtr1);
	writel(0x00000000, &dbsc3_0->dbtr2);
	writel(0x0000000B, &dbsc3_0->dbtr3);
	writel(0x000C000B, &dbsc3_0->dbtr4);
	writel(0x00000027, &dbsc3_0->dbtr5);
	writel(0x0000001C, &dbsc3_0->dbtr6);
	writel(0x00000005, &dbsc3_0->dbtr7);
	writel(0x00000018, &dbsc3_0->dbtr8);
	writel(0x00000008, &dbsc3_0->dbtr9);
	writel(0x0000000C, &dbsc3_0->dbtr10);
	writel(0x00000009, &dbsc3_0->dbtr11);
	writel(0x00000012, &dbsc3_0->dbtr12);
	writel(0x000000D0, &dbsc3_0->dbtr13);
	writel(0x00140005, &dbsc3_0->dbtr14);
	writel(0x00050004, &dbsc3_0->dbtr15);
	writel(0x70233005, &dbsc3_0->dbtr16);
	writel(0x000C0000, &dbsc3_0->dbtr17);
	writel(0x00000300, &dbsc3_0->dbtr18);
	writel(0x00000040, &dbsc3_0->dbtr19);
	writel(0x00000001, &dbsc3_0->dbrnk0);
	writel(0x00020001, &dbsc3_0->dbadj0);
	writel(0x20082008, &dbsc3_0->dbadj2);
	writel(0x00020002, &dbsc3_0->dbwt0cnf0);
	writel(0x0000000F, &dbsc3_0->dbwt0cnf4);

	writel(0x00000015, &dbsc3_0->dbpdrga);
	writel(0x00000D70, &dbsc3_0->dbpdrgd);

	writel(0x00000016, &dbsc3_0->dbpdrga);
	writel(0x00000006, &dbsc3_0->dbpdrgd);

	writel(0x00000017, &dbsc3_0->dbpdrga);
	writel(0x00000018, &dbsc3_0->dbpdrgd);

	writel(0x00000012, &dbsc3_0->dbpdrga);
	writel(0x9D5CBB66, &dbsc3_0->dbpdrgd);

	writel(0x00000013, &dbsc3_0->dbpdrga);
	writel(0x1A868300, &dbsc3_0->dbpdrgd);

	writel(0x00000023, &dbsc3_0->dbpdrga);
	writel(0x00FDB6C0, &dbsc3_0->dbpdrgd);

	writel(0x00000014, &dbsc3_0->dbpdrga);
	writel(0x300214D8, &dbsc3_0->dbpdrgd);

	writel(0x0000001A, &dbsc3_0->dbpdrga);
	writel(0x930035C7, &dbsc3_0->dbpdrgd);

	writel(0x00000060, &dbsc3_0->dbpdrga);
	writel(0x330657B2, &dbsc3_0->dbpdrgd);

	writel(0x00000011, &dbsc3_0->dbpdrga);
	writel(0x1000040B, &dbsc3_0->dbpdrgd);

	writel(0x0000FA00, &dbsc3_0->dbcmd);
	writel(0x00000001, &dbsc3_0->dbpdrga);
	writel(0x00000071, &dbsc3_0->dbpdrgd);

	writel(0x00000004, &dbsc3_0->dbpdrga);
	dbpdrgd_check(dbsc3_0);

	writel(0x0000FA00, &dbsc3_0->dbcmd);
	writel(0x2100FA00, &dbsc3_0->dbcmd);
	writel(0x0000FA00, &dbsc3_0->dbcmd);
	writel(0x0000FA00, &dbsc3_0->dbcmd);
	writel(0x0000FA00, &dbsc3_0->dbcmd);
	writel(0x0000FA00, &dbsc3_0->dbcmd);
	writel(0x0000FA00, &dbsc3_0->dbcmd);
	writel(0x0000FA00, &dbsc3_0->dbcmd);
	writel(0x0000FA00, &dbsc3_0->dbcmd);

	writel(0x110000DB, &dbsc3_0->dbcmd);

	writel(0x00000001, &dbsc3_0->dbpdrga);
	writel(0x00000181, &dbsc3_0->dbpdrgd);

	writel(0x00000004, &dbsc3_0->dbpdrga);
	dbpdrgd_check(dbsc3_0);

	writel(0x00000001, &dbsc3_0->dbpdrga);
	writel(0x0000FE01, &dbsc3_0->dbpdrgd);

	writel(0x00000004, &dbsc3_0->dbpdrga);
	dbpdrgd_check(dbsc3_0);

	writel(0x00000000, &dbsc3_0->dbbs0cnt1);
	writel(0x01004C20, &dbsc3_0->dbcalcnf);
	writel(0x014000AA, &dbsc3_0->dbcaltr);
	writel(0x00000140, &dbsc3_0->dbrfcnf0);
	writel(0x00081860, &dbsc3_0->dbrfcnf1);
	writel(0x00010000, &dbsc3_0->dbrfcnf2);
	writel(0x00000001, &dbsc3_0->dbrfen);
	writel(0x00000001, &dbsc3_0->dbacen);
}
#else
#define bsc_init() do {} while (0)
#endif /* CONFIG_NORFLASH */

void s_init(void)
{
	struct r8a7790_rwdt *rwdt = (struct r8a7790_rwdt *)RWDT_BASE;
	struct r8a7790_swdt *swdt = (struct r8a7790_swdt *)SWDT_BASE;

	/* Watchdog init */
	writel(0xA5A5A500, &rwdt->rwtcsra);
	writel(0xA5A5A500, &swdt->swtcsra);

	/* QoS(Quality-of-Service) Init */
	qos_init();

	/* BSC init */
	bsc_init();
}

#define MSTPSR1	0xE6150038
#define SMSTPCR1	0xE6150134
#define TMU0_MSTP125	(1 << 25)

#define MSTPSR7	0xE61501C4
#define SMSTPCR7	0xE615014C
#define SCIF0_MSTP721	(1 << 21)

#define MSTPSR8	0xE61509A0
#define SMSTPCR8	0xE6150990
#define ETHER_MSTP813	(1 << 13)

#define PMMR	0xE6060000
#define GPSR4	0xE6060014
#define IPSR14	0xE6060058

#define	set_guard_reg(addr, mask, value)	\
{ \
	u32	val; \
	val = (readl(addr) & ~(mask)) | (value);	\
	writel(~val, PMMR);	\
	writel(val, addr);	\
}

#define mstp_setbits(type, addr, saddr, set) \
	out_##type((saddr), in_##type(addr) | (set))
#define mstp_clrbits(type, addr, saddr, clear) \
	out_##type((saddr), in_##type(addr) & ~(clear))
#define mstp_setbits_le32(addr, saddr, set)	\
		mstp_setbits(le32, addr, saddr, set)
#define mstp_clrbits_le32(addr, saddr, clear)	\
		mstp_clrbits(le32, addr, saddr, clear)

int board_early_init_f(void)
{
	/* TMU0 */
	mstp_clrbits_le32(MSTPSR1, SMSTPCR1, TMU0_MSTP125);

#if defined(CONFIG_NORFLASH)
	/* SCIF0 */
	set_guard_reg(GPSR4, 0x34000000, 0x00000000);
	set_guard_reg(IPSR14, 0x00000FC7, 0x00000481);
	set_guard_reg(GPSR4,  0x00000000, 0x34000000);
#endif

	mstp_clrbits_le32(MSTPSR7, SMSTPCR7, SCIF0_MSTP721);

	/* ETHER */
	mstp_clrbits_le32(MSTPSR8, SMSTPCR8, ETHER_MSTP813);

	return 0;
}

void arch_preboot_os(void)
{
	/* Disable TMU0 */
	mstp_setbits_le32(MSTPSR1, SMSTPCR1, TMU0_MSTP125);
}

DECLARE_GLOBAL_DATA_PTR;
int board_init(void)
{
	/* board id for linux */
	gd->bd->bi_arch_number = MACH_TYPE_LAGER;
	/* adress of boot parameters */
	gd->bd->bi_boot_params = LAGER_SDRAM_BASE + 0x100;

	/* Init PFC controller */
	r8a7790_pinmux_init();

	/* ETHER Enable */
	gpio_request(GPIO_FN_ETH_CRS_DV, NULL);
	gpio_request(GPIO_FN_ETH_RX_ER, NULL);
	gpio_request(GPIO_FN_ETH_RXD0, NULL);
	gpio_request(GPIO_FN_ETH_RXD1, NULL);
	gpio_request(GPIO_FN_ETH_LINK, NULL);
	gpio_request(GPIO_FN_ETH_REF_CLK, NULL);
	gpio_request(GPIO_FN_ETH_MDIO, NULL);
	gpio_request(GPIO_FN_ETH_TXD1, NULL);
	gpio_request(GPIO_FN_ETH_TX_EN, NULL);
	gpio_request(GPIO_FN_ETH_MAGIC, NULL);
	gpio_request(GPIO_FN_ETH_TXD0, NULL);
	gpio_request(GPIO_FN_ETH_MDC, NULL);
	gpio_request(GPIO_FN_IRQ0, NULL);

	gpio_request(GPIO_GP_5_31, NULL);	/* PHY_RST */
	gpio_direction_output(GPIO_GP_5_31, 0);
	mdelay(20);
	gpio_set_value(GPIO_GP_5_31, 1);
	udelay(1);

	return 0;
}

#define CXR24 0xEE7003C0 /* MAC address high register */
#define CXR25 0xEE7003C8 /* MAC address low register */
int board_eth_init(bd_t *bis)
{
	int ret = -ENODEV;

#ifdef CONFIG_SH_ETHER
	u32 val;
	unsigned char enetaddr[6];

	ret = sh_eth_initialize(bis);
	if (!eth_getenv_enetaddr("ethaddr", enetaddr))
		return ret;

	/* Set Mac address */
	val = enetaddr[0] << 24 | enetaddr[1] << 16 |
	    enetaddr[2] << 8 | enetaddr[3];
	writel(val, CXR24);

	val = enetaddr[4] << 8 | enetaddr[5];
	writel(val, CXR25);

#endif

	return ret;
}

/* lager has KSZ8041NL/RNL */
#define PHY_CONTROL1	0x1E
#define PHY_LED_MODE	0xC0000
#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;
}

int dram_init(void)
{
	gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
	gd->ram_size = CONFIG_SYS_SDRAM_SIZE;

	return 0;
}

const struct rmobile_sysinfo sysinfo = {
	CONFIG_RMOBILE_BOARD_STRING
};

void dram_init_banksize(void)
{
	gd->bd->bi_dram[0].start = LAGER_SDRAM_BASE;
	gd->bd->bi_dram[0].size = LAGER_SDRAM_SIZE;
}

int board_late_init(void)
{
	return 0;
}

void reset_cpu(ulong addr)
{
	u8 val;

	i2c_set_bus_num(3); /* PowerIC connected to ch3 */
	i2c_init(400000, 0);
	i2c_read(CONFIG_SYS_I2C_POWERIC_ADDR, 0x13, 1, &val, 1);
	val |= 0x02;
	i2c_write(CONFIG_SYS_I2C_POWERIC_ADDR, 0x13, 1, &val, 1);
}