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 <cpu_func.h> 11#include <image.h> 12#include <init.h> 13#include <malloc.h> 14#include <netdev.h> 15#include <dm.h> 16#include <asm/global_data.h> 17#include <dm/platform_data/serial_sh.h> 18#include <asm/processor.h> 19#include <asm/mach-types.h> 20#include <asm/io.h> 21#include <linux/bitops.h> 22#include <linux/errno.h> 23#include <asm/arch/sys_proto.h> 24#include <asm/gpio.h> 25#include <asm/arch/gpio.h> 26#include <asm/arch/renesas.h> 27#include <asm/arch/rcar-mstp.h> 28#include <i2c.h> 29#include <mmc.h> 30 31DECLARE_GLOBAL_DATA_PTR; 32 33#define DVFS_MSTP926 BIT(26) 34#define HSUSB_MSTP704 BIT(4) /* HSUSB */ 35 36int board_early_init_f(void) 37{ 38#if CONFIG_IS_ENABLED(SYS_I2C_LEGACY) && defined(CONFIG_SYS_I2C_SH) 39 /* DVFS for reset */ 40 mstp_clrbits_le32(SMSTPCR9, SMSTPCR9, DVFS_MSTP926); 41#endif 42 return 0; 43} 44 45/* HSUSB block registers */ 46#define HSUSB_REG_LPSTS 0xE6590102 47#define HSUSB_REG_LPSTS_SUSPM_NORMAL BIT(14) 48#define HSUSB_REG_UGCTRL2 0xE6590184 49#define HSUSB_REG_UGCTRL2_USB0SEL 0x30 50#define HSUSB_REG_UGCTRL2_USB0SEL_EHCI 0x10 51 52int board_init(void) 53{ 54 /* USB1 pull-up */ 55 setbits_le32(PFC_PUEN6, PUEN_USB1_OVC | PUEN_USB1_PWEN); 56 57 /* Configure the HSUSB block */ 58 mstp_clrbits_le32(SMSTPCR7, SMSTPCR7, HSUSB_MSTP704); 59 /* Choice USB0SEL */ 60 clrsetbits_le32(HSUSB_REG_UGCTRL2, HSUSB_REG_UGCTRL2_USB0SEL, 61 HSUSB_REG_UGCTRL2_USB0SEL_EHCI); 62 /* low power status */ 63 setbits_le16(HSUSB_REG_LPSTS, HSUSB_REG_LPSTS_SUSPM_NORMAL); 64 65 return 0; 66} 67 68#if CONFIG_IS_ENABLED(SYS_I2C_LEGACY) && defined(CONFIG_SYS_I2C_SH) 69void reset_cpu(void) 70{ 71 i2c_reg_write(CONFIG_SYS_I2C_POWERIC_ADDR, 0x20, 0x80); 72} 73#endif 74 75#ifdef CONFIG_MULTI_DTB_FIT 76int board_fit_config_name_match(const char *name) 77{ 78 /* PRR driver is not available yet */ 79 u32 cpu_type = renesas_get_cpu_type(); 80 81 if ((cpu_type == RENESAS_CPU_TYPE_R8A7795) && 82 !strcmp(name, "r8a77951-salvator-x")) 83 return 0; 84 85 if ((cpu_type == RENESAS_CPU_TYPE_R8A7796) && 86 !strcmp(name, "r8a77960-salvator-x")) 87 return 0; 88 89 if ((cpu_type == RENESAS_CPU_TYPE_R8A77965) && 90 !strcmp(name, "r8a77965-salvator-x")) 91 return 0; 92 93 return -1; 94} 95#endif 96