1 /* 2 * board/renesas/stout/stout.c 3 * This file is Stout board support. 4 * 5 * Copyright (C) 2015 Renesas Electronics Europe GmbH 6 * Copyright (C) 2015 Renesas Electronics Corporation 7 * Copyright (C) 2015 Cogent Embedded, Inc. 8 * 9 * SPDX-License-Identifier: GPL-2.0 10 */ 11 12 #include <common.h> 13 #include <malloc.h> 14 #include <netdev.h> 15 #include <dm.h> 16 #include <dm/platform_data/serial_sh.h> 17 #include <asm/processor.h> 18 #include <asm/mach-types.h> 19 #include <asm/io.h> 20 #include <linux/errno.h> 21 #include <asm/arch/sys_proto.h> 22 #include <asm/gpio.h> 23 #include <asm/arch/rmobile.h> 24 #include <asm/arch/rcar-mstp.h> 25 #include <asm/arch/mmc.h> 26 #include <asm/arch/sh_sdhi.h> 27 #include <miiphy.h> 28 #include <i2c.h> 29 #include <mmc.h> 30 #include "qos.h" 31 #include "cpld.h" 32 33 DECLARE_GLOBAL_DATA_PTR; 34 35 #define CLK2MHZ(clk) (clk / 1000 / 1000) 36 void s_init(void) 37 { 38 struct rcar_rwdt *rwdt = (struct rcar_rwdt *)RWDT_BASE; 39 struct rcar_swdt *swdt = (struct rcar_swdt *)SWDT_BASE; 40 41 /* Watchdog init */ 42 writel(0xA5A5A500, &rwdt->rwtcsra); 43 writel(0xA5A5A500, &swdt->swtcsra); 44 45 /* CPU frequency setting. Set to 1.4GHz */ 46 if (rmobile_get_cpu_rev_integer() >= R8A7790_CUT_ES2X) { 47 u32 stat = 0; 48 u32 stc = ((1400 / CLK2MHZ(CONFIG_SYS_CLK_FREQ)) - 1) 49 << PLL0_STC_BIT; 50 clrsetbits_le32(PLL0CR, PLL0_STC_MASK, stc); 51 52 do { 53 stat = readl(PLLECR) & PLL0ST; 54 } while (stat == 0x0); 55 } 56 57 /* QoS(Quality-of-Service) Init */ 58 qos_init(); 59 } 60 61 #define TMU0_MSTP125 (1 << 25) 62 #define SCIFA0_MSTP204 (1 << 4) 63 #define SDHI0_MSTP314 (1 << 14) 64 #define SDHI2_MSTP312 (1 << 12) 65 #define ETHER_MSTP813 (1 << 13) 66 67 #define MSTPSR3 0xE6150048 68 #define SMSTPCR3 0xE615013C 69 70 #define SD2CKCR 0xE6150078 71 #define SD2_97500KHZ 0x7 72 73 int board_early_init_f(void) 74 { 75 /* TMU0 */ 76 mstp_clrbits_le32(MSTPSR1, SMSTPCR1, TMU0_MSTP125); 77 /* SCIFA0 */ 78 mstp_clrbits_le32(MSTPSR2, SMSTPCR2, SCIFA0_MSTP204); 79 /* ETHER */ 80 mstp_clrbits_le32(MSTPSR8, SMSTPCR8, ETHER_MSTP813); 81 /* SDHI0,2 */ 82 mstp_clrbits_le32(MSTPSR3, SMSTPCR3, SDHI0_MSTP314 | SDHI2_MSTP312); 83 84 /* 85 * SD0 clock is set to 97.5MHz by default. 86 * Set SD2 to the 97.5MHz as well. 87 */ 88 writel(SD2_97500KHZ, SD2CKCR); 89 90 return 0; 91 } 92 93 int board_init(void) 94 { 95 /* adress of boot parameters */ 96 gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; 97 98 /* Init PFC controller */ 99 r8a7790_pinmux_init(); 100 101 cpld_init(); 102 103 #ifdef CONFIG_SH_ETHER 104 /* ETHER Enable */ 105 gpio_request(GPIO_FN_ETH_CRS_DV, NULL); 106 gpio_request(GPIO_FN_ETH_RX_ER, NULL); 107 gpio_request(GPIO_FN_ETH_RXD0, NULL); 108 gpio_request(GPIO_FN_ETH_RXD1, NULL); 109 gpio_request(GPIO_FN_ETH_LINK, NULL); 110 gpio_request(GPIO_FN_ETH_REF_CLK, NULL); 111 gpio_request(GPIO_FN_ETH_MDIO, NULL); 112 gpio_request(GPIO_FN_ETH_TXD1, NULL); 113 gpio_request(GPIO_FN_ETH_TX_EN, NULL); 114 gpio_request(GPIO_FN_ETH_MAGIC, NULL); 115 gpio_request(GPIO_FN_ETH_TXD0, NULL); 116 gpio_request(GPIO_FN_ETH_MDC, NULL); 117 gpio_request(GPIO_FN_IRQ1, NULL); 118 119 gpio_request(GPIO_GP_3_31, NULL); /* PHY_RST */ 120 gpio_direction_output(GPIO_GP_3_31, 0); 121 mdelay(20); 122 gpio_set_value(GPIO_GP_3_31, 1); 123 udelay(1); 124 #endif 125 126 return 0; 127 } 128 129 #define CXR24 0xEE7003C0 /* MAC address high register */ 130 #define CXR25 0xEE7003C8 /* MAC address low register */ 131 int board_eth_init(bd_t *bis) 132 { 133 int ret = -ENODEV; 134 135 #ifdef CONFIG_SH_ETHER 136 u32 val; 137 unsigned char enetaddr[6]; 138 139 ret = sh_eth_initialize(bis); 140 if (!eth_env_get_enetaddr("ethaddr", enetaddr)) 141 return ret; 142 143 /* Set Mac address */ 144 val = enetaddr[0] << 24 | enetaddr[1] << 16 | 145 enetaddr[2] << 8 | enetaddr[3]; 146 writel(val, CXR24); 147 148 val = enetaddr[4] << 8 | enetaddr[5]; 149 writel(val, CXR25); 150 #endif 151 152 return ret; 153 } 154 155 /* Stout has KSZ8041NL/RNL */ 156 #define PHY_CONTROL1 0x1E 157 #define PHY_LED_MODE 0xC0000 158 #define PHY_LED_MODE_ACK 0x4000 159 int board_phy_config(struct phy_device *phydev) 160 { 161 int ret = phy_read(phydev, MDIO_DEVAD_NONE, PHY_CONTROL1); 162 ret &= ~PHY_LED_MODE; 163 ret |= PHY_LED_MODE_ACK; 164 ret = phy_write(phydev, MDIO_DEVAD_NONE, PHY_CONTROL1, (u16)ret); 165 166 return 0; 167 } 168 169 int board_mmc_init(bd_t *bis) 170 { 171 int ret = -ENODEV; 172 173 #ifdef CONFIG_SH_SDHI 174 gpio_request(GPIO_FN_SD0_DAT0, NULL); 175 gpio_request(GPIO_FN_SD0_DAT1, NULL); 176 gpio_request(GPIO_FN_SD0_DAT2, NULL); 177 gpio_request(GPIO_FN_SD0_DAT3, NULL); 178 gpio_request(GPIO_FN_SD0_CLK, NULL); 179 gpio_request(GPIO_FN_SD0_CMD, NULL); 180 gpio_request(GPIO_FN_SD0_CD, NULL); 181 gpio_request(GPIO_FN_SD2_DAT0, NULL); 182 gpio_request(GPIO_FN_SD2_DAT1, NULL); 183 gpio_request(GPIO_FN_SD2_DAT2, NULL); 184 gpio_request(GPIO_FN_SD2_DAT3, NULL); 185 gpio_request(GPIO_FN_SD2_CLK, NULL); 186 gpio_request(GPIO_FN_SD2_CMD, NULL); 187 gpio_request(GPIO_FN_SD2_CD, NULL); 188 189 /* SDHI0 - needs CPLD mux setup */ 190 gpio_request(GPIO_GP_3_30, NULL); 191 gpio_direction_output(GPIO_GP_3_30, 1); /* VLDO3=3.3V */ 192 gpio_request(GPIO_GP_5_24, NULL); 193 gpio_direction_output(GPIO_GP_5_24, 1); /* power on */ 194 195 ret = sh_sdhi_init(CONFIG_SYS_SH_SDHI0_BASE, 0, 196 SH_SDHI_QUIRK_16BIT_BUF); 197 if (ret) 198 return ret; 199 200 /* SDHI2 - needs CPLD mux setup */ 201 gpio_request(GPIO_GP_3_29, NULL); 202 gpio_direction_output(GPIO_GP_3_29, 1); /* VLDO4=3.3V */ 203 gpio_request(GPIO_GP_5_25, NULL); 204 gpio_direction_output(GPIO_GP_5_25, 1); /* power on */ 205 206 ret = sh_sdhi_init(CONFIG_SYS_SH_SDHI2_BASE, 2, 0); 207 #endif 208 return ret; 209 } 210 211 212 int dram_init(void) 213 { 214 gd->ram_size = CONFIG_SYS_SDRAM_SIZE; 215 216 return 0; 217 } 218 219 const struct rmobile_sysinfo sysinfo = { 220 CONFIG_ARCH_RMOBILE_BOARD_STRING 221 }; 222 223 static const struct sh_serial_platdata serial_platdata = { 224 .base = SCIFA0_BASE, 225 .type = PORT_SCIFA, 226 .clk = CONFIG_MP_CLK_FREQ, 227 }; 228 229 U_BOOT_DEVICE(stout_serials) = { 230 .name = "serial_sh", 231 .platdata = &serial_platdata, 232 }; 233