1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * board/renesas/salvator-x/salvator-x.c 4 * This file is Salvator-X/Salvator-XS board support. 5 * 6 * Copyright (C) 2015-2017 Renesas Electronics Corporation 7 * Copyright (C) 2015 Nobuhiro Iwamatsu <iwamatsu@nigauri.org> 8 */ 9 10 #include <common.h> 11 #include <malloc.h> 12 #include <netdev.h> 13 #include <dm.h> 14 #include <dm/platform_data/serial_sh.h> 15 #include <asm/processor.h> 16 #include <asm/mach-types.h> 17 #include <asm/io.h> 18 #include <linux/errno.h> 19 #include <asm/arch/sys_proto.h> 20 #include <asm/gpio.h> 21 #include <asm/arch/gpio.h> 22 #include <asm/arch/rmobile.h> 23 #include <asm/arch/rcar-mstp.h> 24 #include <asm/arch/sh_sdhi.h> 25 #include <i2c.h> 26 #include <mmc.h> 27 28 DECLARE_GLOBAL_DATA_PTR; 29 30 void s_init(void) 31 { 32 } 33 34 #define DVFS_MSTP926 BIT(26) 35 #define HSUSB_MSTP704 BIT(4) /* HSUSB */ 36 37 int board_early_init_f(void) 38 { 39 #if defined(CONFIG_SYS_I2C) && defined(CONFIG_SYS_I2C_SH) 40 /* DVFS for reset */ 41 mstp_clrbits_le32(SMSTPCR9, SMSTPCR9, DVFS_MSTP926); 42 #endif 43 return 0; 44 } 45 46 /* HSUSB block registers */ 47 #define HSUSB_REG_LPSTS 0xE6590102 48 #define HSUSB_REG_LPSTS_SUSPM_NORMAL BIT(14) 49 #define HSUSB_REG_UGCTRL2 0xE6590184 50 #define HSUSB_REG_UGCTRL2_USB0SEL 0x30 51 #define HSUSB_REG_UGCTRL2_USB0SEL_EHCI 0x10 52 53 int board_init(void) 54 { 55 /* adress of boot parameters */ 56 gd->bd->bi_boot_params = CONFIG_SYS_TEXT_BASE + 0x50000; 57 58 /* USB1 pull-up */ 59 setbits_le32(PFC_PUEN6, PUEN_USB1_OVC | PUEN_USB1_PWEN); 60 61 /* Configure the HSUSB block */ 62 mstp_clrbits_le32(SMSTPCR7, SMSTPCR7, HSUSB_MSTP704); 63 /* Choice USB0SEL */ 64 clrsetbits_le32(HSUSB_REG_UGCTRL2, HSUSB_REG_UGCTRL2_USB0SEL, 65 HSUSB_REG_UGCTRL2_USB0SEL_EHCI); 66 /* low power status */ 67 setbits_le16(HSUSB_REG_LPSTS, HSUSB_REG_LPSTS_SUSPM_NORMAL); 68 69 return 0; 70 } 71 72 int dram_init(void) 73 { 74 if (fdtdec_setup_mem_size_base() != 0) 75 return -EINVAL; 76 77 return 0; 78 } 79 80 int dram_init_banksize(void) 81 { 82 fdtdec_setup_memory_banksize(); 83 84 return 0; 85 } 86 87 #define RST_BASE 0xE6160000 88 #define RST_CA57RESCNT (RST_BASE + 0x40) 89 #define RST_CA53RESCNT (RST_BASE + 0x44) 90 #define RST_RSTOUTCR (RST_BASE + 0x58) 91 #define RST_CODE 0xA5A5000F 92 93 void reset_cpu(ulong addr) 94 { 95 #if defined(CONFIG_SYS_I2C) && defined(CONFIG_SYS_I2C_SH) 96 i2c_reg_write(CONFIG_SYS_I2C_POWERIC_ADDR, 0x20, 0x80); 97 #else 98 /* only CA57 ? */ 99 writel(RST_CODE, RST_CA57RESCNT); 100 #endif 101 } 102 103 #ifdef CONFIG_MULTI_DTB_FIT 104 int board_fit_config_name_match(const char *name) 105 { 106 /* PRR driver is not available yet */ 107 u32 cpu_type = rmobile_get_cpu_type(); 108 109 if ((cpu_type == RMOBILE_CPU_TYPE_R8A7795) && 110 !strcmp(name, "r8a7795-salvator-x-u-boot")) 111 return 0; 112 113 if ((cpu_type == RMOBILE_CPU_TYPE_R8A7796) && 114 !strcmp(name, "r8a7796-salvator-x-u-boot")) 115 return 0; 116 117 if ((cpu_type == RMOBILE_CPU_TYPE_R8A77965) && 118 !strcmp(name, "r8a77965-salvator-x-u-boot")) 119 return 0; 120 121 return -1; 122 } 123 #endif 124