1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * board/renesas/koelsch/koelsch.c 4 * 5 * Copyright (C) 2013 Renesas Electronics Corporation 6 * 7 */ 8 9 #include <common.h> 10 #include <malloc.h> 11 #include <dm.h> 12 #include <dm/platform_data/serial_sh.h> 13 #include <environment.h> 14 #include <asm/processor.h> 15 #include <asm/mach-types.h> 16 #include <asm/io.h> 17 #include <linux/errno.h> 18 #include <asm/arch/sys_proto.h> 19 #include <asm/gpio.h> 20 #include <asm/arch/rmobile.h> 21 #include <asm/arch/rcar-mstp.h> 22 #include <asm/arch/sh_sdhi.h> 23 #include <netdev.h> 24 #include <miiphy.h> 25 #include <i2c.h> 26 #include <div64.h> 27 #include "qos.h" 28 29 DECLARE_GLOBAL_DATA_PTR; 30 31 #define CLK2MHZ(clk) (clk / 1000 / 1000) 32 void s_init(void) 33 { 34 struct rcar_rwdt *rwdt = (struct rcar_rwdt *)RWDT_BASE; 35 struct rcar_swdt *swdt = (struct rcar_swdt *)SWDT_BASE; 36 u32 stc; 37 38 /* Watchdog init */ 39 writel(0xA5A5A500, &rwdt->rwtcsra); 40 writel(0xA5A5A500, &swdt->swtcsra); 41 42 /* CPU frequency setting. Set to 1.5GHz */ 43 stc = ((1500 / CLK2MHZ(CONFIG_SYS_CLK_FREQ)) - 1) << PLL0_STC_BIT; 44 clrsetbits_le32(PLL0CR, PLL0_STC_MASK, stc); 45 46 /* QoS */ 47 qos_init(); 48 } 49 50 #define TMU0_MSTP125 BIT(25) 51 52 #define SD1CKCR 0xE6150078 53 #define SD2CKCR 0xE615026C 54 #define SD_97500KHZ 0x7 55 56 int board_early_init_f(void) 57 { 58 mstp_clrbits_le32(MSTPSR1, SMSTPCR1, TMU0_MSTP125); 59 60 /* 61 * SD0 clock is set to 97.5MHz by default. 62 * Set SD1 and SD2 to the 97.5MHz as well. 63 */ 64 writel(SD_97500KHZ, SD1CKCR); 65 writel(SD_97500KHZ, SD2CKCR); 66 67 return 0; 68 } 69 70 #define ETHERNET_PHY_RESET 176 /* GPIO 5 22 */ 71 72 int board_init(void) 73 { 74 /* adress of boot parameters */ 75 gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; 76 77 /* Force ethernet PHY out of reset */ 78 gpio_request(ETHERNET_PHY_RESET, "phy_reset"); 79 gpio_direction_output(ETHERNET_PHY_RESET, 0); 80 mdelay(10); 81 gpio_direction_output(ETHERNET_PHY_RESET, 1); 82 83 return 0; 84 } 85 86 int dram_init(void) 87 { 88 if (fdtdec_setup_memory_size() != 0) 89 return -EINVAL; 90 91 return 0; 92 } 93 94 int dram_init_banksize(void) 95 { 96 fdtdec_setup_memory_banksize(); 97 98 return 0; 99 } 100 101 /* Koelsch has KSZ8041NL/RNL */ 102 #define PHY_CONTROL1 0x1E 103 #define PHY_LED_MODE 0xC0000 104 #define PHY_LED_MODE_ACK 0x4000 105 int board_phy_config(struct phy_device *phydev) 106 { 107 int ret = phy_read(phydev, MDIO_DEVAD_NONE, PHY_CONTROL1); 108 ret &= ~PHY_LED_MODE; 109 ret |= PHY_LED_MODE_ACK; 110 ret = phy_write(phydev, MDIO_DEVAD_NONE, PHY_CONTROL1, (u16)ret); 111 112 return 0; 113 } 114 115 void reset_cpu(ulong addr) 116 { 117 struct udevice *dev; 118 const u8 pmic_bus = 6; 119 const u8 pmic_addr = 0x58; 120 u8 data; 121 int ret; 122 123 ret = i2c_get_chip_for_busnum(pmic_bus, pmic_addr, 1, &dev); 124 if (ret) 125 hang(); 126 127 ret = dm_i2c_read(dev, 0x13, &data, 1); 128 if (ret) 129 hang(); 130 131 data |= BIT(1); 132 133 ret = dm_i2c_write(dev, 0x13, &data, 1); 134 if (ret) 135 hang(); 136 } 137 138 enum env_location env_get_location(enum env_operation op, int prio) 139 { 140 const u32 load_magic = 0xb33fc0de; 141 142 /* Block environment access if loaded using JTAG */ 143 if ((readl(CONFIG_SPL_TEXT_BASE + 0x24) == load_magic) && 144 (op != ENVOP_INIT)) 145 return ENVL_UNKNOWN; 146 147 if (prio) 148 return ENVL_UNKNOWN; 149 150 return ENVL_SPI_FLASH; 151 } 152