Git Repo - u-boot.git/blame_incremental - board/renesas/porter/porter.c

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Commit	Line	Data
	1	// SPDX-License-Identifier: GPL-2.0
	2	/*
	3	* board/renesas/porter/porter.c
	4	*
	5	* Copyright (C) 2015 Renesas Electronics Corporation
	6	* Copyright (C) 2015 Cogent Embedded, Inc.
	7	*/
	8
	9	#include <common.h>
	10	#include <cpu_func.h>
	11	#include <env.h>
	12	#include <hang.h>
	13	#include <init.h>
	14	#include <malloc.h>
	15	#include <dm.h>
	16	#include <asm/global_data.h>
	17	#include <dm/platform_data/serial_sh.h>
	18	#include <env_internal.h>
	19	#include <asm/processor.h>
	20	#include <asm/mach-types.h>
	21	#include <asm/io.h>
	22	#include <linux/bitops.h>
	23	#include <linux/delay.h>
	24	#include <linux/errno.h>
	25	#include <asm/arch/sys_proto.h>
	26	#include <asm/gpio.h>
	27	#include <asm/arch/rmobile.h>
	28	#include <asm/arch/rcar-mstp.h>
	29	#include <asm/arch/sh_sdhi.h>
	30	#include <netdev.h>
	31	#include <miiphy.h>
	32	#include <i2c.h>
	33	#include <div64.h>
	34	#include "qos.h"
	35
	36	DECLARE_GLOBAL_DATA_PTR;
	37
	38	#define CLK2MHZ(clk) (clk / 1000 / 1000)
	39	void s_init(void)
	40	{
	41	struct rcar_rwdt rwdt = (struct rcar_rwdt )RWDT_BASE;
	42	struct rcar_swdt swdt = (struct rcar_swdt )SWDT_BASE;
	43	u32 stc;
	44
	45	/* Watchdog init */
	46	writel(0xA5A5A500, &rwdt->rwtcsra);
	47	writel(0xA5A5A500, &swdt->swtcsra);
	48
	49	/* CPU frequency setting. Set to 1.5GHz */
	50	stc = ((1500 / CLK2MHZ(CONFIG_SYS_CLK_FREQ)) - 1) << PLL0_STC_BIT;
	51	clrsetbits_le32(PLL0CR, PLL0_STC_MASK, stc);
	52
	53	/* QoS */
	54	qos_init();
	55	}
	56
	57	#define TMU0_MSTP125 BIT(25)
	58
	59	#define SD2CKCR 0xE615026C
	60	#define SD_97500KHZ 0x7
	61
	62	int board_early_init_f(void)
	63	{
	64	mstp_clrbits_le32(MSTPSR1, SMSTPCR1, TMU0_MSTP125);
	65
	66	/*
	67	* SD0 clock is set to 97.5MHz by default.
	68	* Set SD2 to the 97.5MHz as well.
	69	*/
	70	writel(SD_97500KHZ, SD2CKCR);
	71
	72	return 0;
	73	}
	74
	75	#define ETHERNET_PHY_RESET 176 /* GPIO 5 22 */
	76
	77	int board_init(void)
	78	{
	79	/* adress of boot parameters */
	80	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
	81
	82	/* Force ethernet PHY out of reset */
	83	gpio_request(ETHERNET_PHY_RESET, "phy_reset");
	84	gpio_direction_output(ETHERNET_PHY_RESET, 0);
	85	mdelay(10);
	86	gpio_direction_output(ETHERNET_PHY_RESET, 1);
	87
	88	return 0;
	89	}
	90
	91	int dram_init(void)
	92	{
	93	if (fdtdec_setup_mem_size_base() != 0)
	94	return -EINVAL;
	95
	96	return 0;
	97	}
	98
	99	int dram_init_banksize(void)
	100	{
	101	fdtdec_setup_memory_banksize();
	102
	103	return 0;
	104	}
	105
	106	/* porter has KSZ8041RNLI */
	107	#define PHY_CONTROL1 0x1E
	108	#define PHY_LED_MODE 0xC000
	109	#define PHY_LED_MODE_ACK 0x4000
	110	int board_phy_config(struct phy_device *phydev)
	111	{
	112	int ret = phy_read(phydev, MDIO_DEVAD_NONE, PHY_CONTROL1);
	113	ret &= ~PHY_LED_MODE;
	114	ret \|= PHY_LED_MODE_ACK;
	115	ret = phy_write(phydev, MDIO_DEVAD_NONE, PHY_CONTROL1, (u16)ret);
	116
	117	return 0;
	118	}
	119
	120	void reset_cpu(void)
	121	{
	122	struct udevice *dev;
	123	const u8 pmic_bus = 6;
	124	const u8 pmic_addr = 0x5a;
	125	u8 data;
	126	int ret;
	127
	128	ret = i2c_get_chip_for_busnum(pmic_bus, pmic_addr, 1, &dev);
	129	if (ret)
	130	hang();
	131
	132	ret = dm_i2c_read(dev, 0x13, &data, 1);
	133	if (ret)
	134	hang();
	135
	136	data \|= BIT(1);
	137
	138	ret = dm_i2c_write(dev, 0x13, &data, 1);
	139	if (ret)
	140	hang();
	141	}
	142
	143	enum env_location env_get_location(enum env_operation op, int prio)
	144	{
	145	const u32 load_magic = 0xb33fc0de;
	146
	147	/* Block environment access if loaded using JTAG */
	148	if ((readl(CONFIG_SPL_TEXT_BASE + 0x24) == load_magic) &&
	149	(op != ENVOP_INIT))
	150	return ENVL_UNKNOWN;
	151
	152	if (prio)
	153	return ENVL_UNKNOWN;
	154
	155	return ENVL_SPI_FLASH;
	156	}