1 /* 2 * board/renesas/silk/silk.c 3 * 4 * Copyright (C) 2015 Renesas Electronics Corporation 5 * Copyright (C) 2015 Cogent Embedded, Inc. 6 * 7 * SPDX-License-Identifier: GPL-2.0 8 */ 9 10 #include <common.h> 11 #include <malloc.h> 12 #include <dm.h> 13 #include <dm/platform_data/serial_sh.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/mmc.h> 23 #include <asm/arch/sh_sdhi.h> 24 #include <netdev.h> 25 #include <miiphy.h> 26 #include <i2c.h> 27 #include <div64.h> 28 #include "qos.h" 29 30 DECLARE_GLOBAL_DATA_PTR; 31 32 #define CLK2MHZ(clk) (clk / 1000 / 1000) 33 void s_init(void) 34 { 35 struct rcar_rwdt *rwdt = (struct rcar_rwdt *)RWDT_BASE; 36 struct rcar_swdt *swdt = (struct rcar_swdt *)SWDT_BASE; 37 38 /* Watchdog init */ 39 writel(0xA5A5A500, &rwdt->rwtcsra); 40 writel(0xA5A5A500, &swdt->swtcsra); 41 42 /* QoS */ 43 qos_init(); 44 } 45 46 #define TMU0_MSTP125 (1 << 25) 47 #define SCIF2_MSTP719 (1 << 19) 48 #define ETHER_MSTP813 (1 << 13) 49 #define IIC1_MSTP323 (1 << 23) 50 #define MMC0_MSTP315 (1 << 15) 51 #define SDHI1_MSTP312 (1 << 12) 52 53 #define SD1CKCR 0xE6150078 54 #define SD1_97500KHZ 0x7 55 56 int board_early_init_f(void) 57 { 58 /* TMU */ 59 mstp_clrbits_le32(MSTPSR1, SMSTPCR1, TMU0_MSTP125); 60 61 /* SCIF2 */ 62 mstp_clrbits_le32(MSTPSR7, SMSTPCR7, SCIF2_MSTP719); 63 64 /* ETHER */ 65 mstp_clrbits_le32(MSTPSR8, SMSTPCR8, ETHER_MSTP813); 66 67 /* IIC1 / sh-i2c ch1 */ 68 mstp_clrbits_le32(MSTPSR3, SMSTPCR3, IIC1_MSTP323); 69 70 #ifdef CONFIG_SH_MMCIF 71 /* MMC */ 72 mstp_clrbits_le32(MSTPSR3, SMSTPCR3, MMC0_MSTP315); 73 #endif 74 75 #ifdef CONFIG_SH_SDHI 76 /* SDHI1 */ 77 mstp_clrbits_le32(MSTPSR3, SMSTPCR3, SDHI1_MSTP312); 78 79 /* 80 * Set SD1 to the 97.5MHz 81 */ 82 writel(SD1_97500KHZ, SD1CKCR); 83 #endif 84 return 0; 85 } 86 87 /* LSI pin pull-up control */ 88 #define PUPR3 0xe606010C 89 #define PUPR3_ETH 0x006FF800 90 #define PUPR1 0xe6060104 91 #define PUPR1_DREQ0_N (1 << 20) 92 int board_init(void) 93 { 94 /* adress of boot parameters */ 95 gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; 96 97 /* Init PFC controller */ 98 r8a7794_pinmux_init(); 99 100 /* Ether Enable */ 101 gpio_request(GPIO_FN_ETH_CRS_DV, NULL); 102 gpio_request(GPIO_FN_ETH_RX_ER, NULL); 103 gpio_request(GPIO_FN_ETH_RXD0, NULL); 104 gpio_request(GPIO_FN_ETH_RXD1, NULL); 105 gpio_request(GPIO_FN_ETH_LINK, NULL); 106 gpio_request(GPIO_FN_ETH_REFCLK, NULL); 107 gpio_request(GPIO_FN_ETH_MDIO, NULL); 108 gpio_request(GPIO_FN_ETH_TXD1, NULL); 109 gpio_request(GPIO_FN_ETH_TX_EN, NULL); 110 gpio_request(GPIO_FN_ETH_MAGIC, NULL); 111 gpio_request(GPIO_FN_ETH_TXD0, NULL); 112 gpio_request(GPIO_FN_ETH_MDC, NULL); 113 gpio_request(GPIO_FN_IRQ8, NULL); 114 115 /* PHY reset */ 116 mstp_clrbits_le32(PUPR3, PUPR3, PUPR3_ETH); 117 gpio_request(GPIO_GP_1_24, NULL); 118 mstp_clrbits_le32(PUPR1, PUPR1, PUPR1_DREQ0_N); 119 120 gpio_direction_output(GPIO_GP_1_24, 0); 121 mdelay(20); 122 gpio_set_value(GPIO_GP_1_24, 1); 123 udelay(1); 124 125 return 0; 126 } 127 128 #define CXR24 0xEE7003C0 /* MAC address high register */ 129 #define CXR25 0xEE7003C8 /* MAC address low register */ 130 int board_eth_init(bd_t *bis) 131 { 132 #ifdef CONFIG_SH_ETHER 133 int ret = -ENODEV; 134 u32 val; 135 unsigned char enetaddr[6]; 136 137 ret = sh_eth_initialize(bis); 138 if (!eth_env_get_enetaddr("ethaddr", enetaddr)) 139 return ret; 140 141 /* Set Mac address */ 142 val = enetaddr[0] << 24 | enetaddr[1] << 16 | 143 enetaddr[2] << 8 | enetaddr[3]; 144 writel(val, CXR24); 145 146 val = enetaddr[4] << 8 | enetaddr[5]; 147 writel(val, CXR25); 148 149 return ret; 150 #else 151 return 0; 152 #endif 153 } 154 155 int board_mmc_init(bd_t *bis) 156 { 157 int ret = -ENODEV; 158 159 #ifdef CONFIG_SH_MMCIF 160 /* MMC0 */ 161 gpio_request(GPIO_GP_4_31, NULL); 162 gpio_direction_output(GPIO_GP_4_31, 1); 163 164 ret = mmcif_mmc_init(); 165 #endif 166 167 #ifdef CONFIG_SH_SDHI 168 gpio_request(GPIO_FN_SD1_DATA0, NULL); 169 gpio_request(GPIO_FN_SD1_DATA1, NULL); 170 gpio_request(GPIO_FN_SD1_DATA2, NULL); 171 gpio_request(GPIO_FN_SD1_DATA3, NULL); 172 gpio_request(GPIO_FN_SD1_CLK, NULL); 173 gpio_request(GPIO_FN_SD1_CMD, NULL); 174 gpio_request(GPIO_FN_SD1_CD, NULL); 175 176 /* SDHI 1 */ 177 gpio_request(GPIO_GP_4_26, NULL); 178 gpio_request(GPIO_GP_4_29, NULL); 179 gpio_direction_output(GPIO_GP_4_26, 1); 180 gpio_direction_output(GPIO_GP_4_29, 1); 181 182 ret = sh_sdhi_init(CONFIG_SYS_SH_SDHI1_BASE, 1, 0); 183 #endif 184 return ret; 185 } 186 187 int dram_init(void) 188 { 189 gd->ram_size = CONFIG_SYS_SDRAM_SIZE; 190 191 return 0; 192 } 193 194 const struct rmobile_sysinfo sysinfo = { 195 CONFIG_ARCH_RMOBILE_BOARD_STRING 196 }; 197 198 void reset_cpu(ulong addr) 199 { 200 u8 val; 201 202 i2c_set_bus_num(1); /* PowerIC connected to ch1 */ 203 i2c_read(CONFIG_SYS_I2C_POWERIC_ADDR, 0x13, 1, &val, 1); 204 val |= 0x02; 205 i2c_write(CONFIG_SYS_I2C_POWERIC_ADDR, 0x13, 1, &val, 1); 206 } 207 208 static const struct sh_serial_platdata serial_platdata = { 209 .base = SCIF2_BASE, 210 .type = PORT_SCIF, 211 .clk = 14745600, 212 .clk_mode = EXT_CLK, 213 }; 214 215 U_BOOT_DEVICE(silk_serials) = { 216 .name = "serial_sh", 217 .platdata = &serial_platdata, 218 }; 219