1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * board/renesas/gose/gose.c 4 * 5 * Copyright (C) 2014 Renesas Electronics Corporation 6 */ 7 8 #include <common.h> 9 #include <malloc.h> 10 #include <dm.h> 11 #include <dm/platform_data/serial_sh.h> 12 #include <environment.h> 13 #include <asm/processor.h> 14 #include <asm/mach-types.h> 15 #include <asm/io.h> 16 #include <linux/errno.h> 17 #include <asm/arch/sys_proto.h> 18 #include <asm/gpio.h> 19 #include <asm/arch/rmobile.h> 20 #include <asm/arch/rcar-mstp.h> 21 #include <asm/arch/sh_sdhi.h> 22 #include <netdev.h> 23 #include <miiphy.h> 24 #include <i2c.h> 25 #include "qos.h" 26 27 DECLARE_GLOBAL_DATA_PTR; 28 29 #define CLK2MHZ(clk) (clk / 1000 / 1000) 30 void s_init(void) 31 { 32 struct rcar_rwdt *rwdt = (struct rcar_rwdt *)RWDT_BASE; 33 struct rcar_swdt *swdt = (struct rcar_swdt *)SWDT_BASE; 34 u32 stc; 35 36 /* Watchdog init */ 37 writel(0xA5A5A500, &rwdt->rwtcsra); 38 writel(0xA5A5A500, &swdt->swtcsra); 39 40 /* CPU frequency setting. Set to 1.5GHz */ 41 stc = ((1500 / CLK2MHZ(CONFIG_SYS_CLK_FREQ)) - 1) << PLL0_STC_BIT; 42 clrsetbits_le32(PLL0CR, PLL0_STC_MASK, stc); 43 44 /* QoS */ 45 qos_init(); 46 } 47 48 #define TMU0_MSTP125 BIT(25) 49 50 #define SD1CKCR 0xE6150078 51 #define SD2CKCR 0xE615026C 52 #define SD_97500KHZ 0x7 53 54 int board_early_init_f(void) 55 { 56 mstp_clrbits_le32(MSTPSR1, SMSTPCR1, TMU0_MSTP125); 57 58 /* 59 * SD0 clock is set to 97.5MHz by default. 60 * Set SD1 and SD2 to the 97.5MHz as well. 61 */ 62 writel(SD_97500KHZ, SD1CKCR); 63 writel(SD_97500KHZ, SD2CKCR); 64 65 return 0; 66 } 67 68 #define ETHERNET_PHY_RESET 176 /* GPIO 5 22 */ 69 70 int board_init(void) 71 { 72 /* adress of boot parameters */ 73 gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; 74 75 /* Force ethernet PHY out of reset */ 76 gpio_request(ETHERNET_PHY_RESET, "phy_reset"); 77 gpio_direction_output(ETHERNET_PHY_RESET, 0); 78 mdelay(10); 79 gpio_direction_output(ETHERNET_PHY_RESET, 1); 80 81 return 0; 82 } 83 84 int dram_init(void) 85 { 86 if (fdtdec_setup_mem_size_base() != 0) 87 return -EINVAL; 88 89 return 0; 90 } 91 92 int dram_init_banksize(void) 93 { 94 fdtdec_setup_memory_banksize(); 95 96 return 0; 97 } 98 99 /* KSZ8041RNLI */ 100 #define PHY_CONTROL1 0x1E 101 #define PHY_LED_MODE 0xC0000 102 #define PHY_LED_MODE_ACK 0x4000 103 int board_phy_config(struct phy_device *phydev) 104 { 105 int ret = phy_read(phydev, MDIO_DEVAD_NONE, PHY_CONTROL1); 106 ret &= ~PHY_LED_MODE; 107 ret |= PHY_LED_MODE_ACK; 108 ret = phy_write(phydev, MDIO_DEVAD_NONE, PHY_CONTROL1, (u16)ret); 109 110 return 0; 111 } 112 113 void reset_cpu(ulong addr) 114 { 115 struct udevice *dev; 116 const u8 pmic_bus = 6; 117 const u8 pmic_addr = 0x58; 118 u8 data; 119 int ret; 120 121 ret = i2c_get_chip_for_busnum(pmic_bus, pmic_addr, 1, &dev); 122 if (ret) 123 hang(); 124 125 ret = dm_i2c_read(dev, 0x13, &data, 1); 126 if (ret) 127 hang(); 128 129 data |= BIT(1); 130 131 ret = dm_i2c_write(dev, 0x13, &data, 1); 132 if (ret) 133 hang(); 134 } 135 136 enum env_location env_get_location(enum env_operation op, int prio) 137 { 138 const u32 load_magic = 0xb33fc0de; 139 140 /* Block environment access if loaded using JTAG */ 141 if ((readl(CONFIG_SPL_TEXT_BASE + 0x24) == load_magic) && 142 (op != ENVOP_INIT)) 143 return ENVL_UNKNOWN; 144 145 if (prio) 146 return ENVL_UNKNOWN; 147 148 return ENVL_SPI_FLASH; 149 } 150