1 /* 2 * board/renesas/salvator-x/salvator-x.c 3 * This file is Salvator-X/Salvator-XS board support. 4 * 5 * Copyright (C) 2015-2017 Renesas Electronics Corporation 6 * Copyright (C) 2015 Nobuhiro Iwamatsu <iwamatsu@nigauri.org> 7 * 8 * SPDX-License-Identifier: GPL-2.0+ 9 */ 10 11 #include <common.h> 12 #include <malloc.h> 13 #include <netdev.h> 14 #include <dm.h> 15 #include <dm/platform_data/serial_sh.h> 16 #include <asm/processor.h> 17 #include <asm/mach-types.h> 18 #include <asm/io.h> 19 #include <linux/errno.h> 20 #include <asm/arch/sys_proto.h> 21 #include <asm/gpio.h> 22 #include <asm/arch/gpio.h> 23 #include <asm/arch/rmobile.h> 24 #include <asm/arch/rcar-mstp.h> 25 #include <asm/arch/sh_sdhi.h> 26 #include <i2c.h> 27 #include <mmc.h> 28 29 DECLARE_GLOBAL_DATA_PTR; 30 31 #define CPGWPCR 0xE6150904 32 #define CPGWPR 0xE615090C 33 34 #define CLK2MHZ(clk) (clk / 1000 / 1000) 35 void s_init(void) 36 { 37 struct rcar_rwdt *rwdt = (struct rcar_rwdt *)RWDT_BASE; 38 struct rcar_swdt *swdt = (struct rcar_swdt *)SWDT_BASE; 39 40 /* Watchdog init */ 41 writel(0xA5A5A500, &rwdt->rwtcsra); 42 writel(0xA5A5A500, &swdt->swtcsra); 43 44 writel(0xA5A50000, CPGWPCR); 45 writel(0xFFFFFFFF, CPGWPR); 46 } 47 48 #define GSX_MSTP112 BIT(12) /* 3DG */ 49 #define TMU0_MSTP125 BIT(25) /* secure */ 50 #define TMU1_MSTP124 BIT(24) /* non-secure */ 51 #define SCIF2_MSTP310 BIT(10) /* SCIF2 */ 52 #define DVFS_MSTP926 BIT(26) 53 #define HSUSB_MSTP704 BIT(4) /* HSUSB */ 54 55 int board_early_init_f(void) 56 { 57 /* TMU0,1 */ /* which use ? */ 58 mstp_clrbits_le32(MSTPSR1, SMSTPCR1, TMU0_MSTP125 | TMU1_MSTP124); 59 60 #if defined(CONFIG_SYS_I2C) && defined(CONFIG_SYS_I2C_SH) 61 /* DVFS for reset */ 62 mstp_clrbits_le32(MSTPSR9, SMSTPCR9, DVFS_MSTP926); 63 #endif 64 return 0; 65 } 66 67 /* SYSC */ 68 /* R/- 32 Power status register 2(3DG) */ 69 #define SYSC_PWRSR2 0xE6180100 70 /* -/W 32 Power resume control register 2 (3DG) */ 71 #define SYSC_PWRONCR2 0xE618010C 72 73 /* HSUSB block registers */ 74 #define HSUSB_REG_LPSTS 0xE6590102 75 #define HSUSB_REG_LPSTS_SUSPM_NORMAL BIT(14) 76 #define HSUSB_REG_UGCTRL2 0xE6590184 77 #define HSUSB_REG_UGCTRL2_USB0SEL 0x30 78 #define HSUSB_REG_UGCTRL2_USB0SEL_EHCI 0x10 79 80 int board_init(void) 81 { 82 u32 cpu_type = rmobile_get_cpu_type(); 83 84 /* adress of boot parameters */ 85 gd->bd->bi_boot_params = CONFIG_SYS_TEXT_BASE + 0x50000; 86 87 if (cpu_type == RMOBILE_CPU_TYPE_R8A7795) { 88 /* GSX: force power and clock supply */ 89 writel(0x0000001F, SYSC_PWRONCR2); 90 while (readl(SYSC_PWRSR2) != 0x000003E0) 91 mdelay(20); 92 93 mstp_clrbits_le32(MSTPSR1, SMSTPCR1, GSX_MSTP112); 94 } 95 96 /* USB1 pull-up */ 97 setbits_le32(PFC_PUEN6, PUEN_USB1_OVC | PUEN_USB1_PWEN); 98 99 /* Configure the HSUSB block */ 100 mstp_clrbits_le32(MSTPSR7, SMSTPCR7, HSUSB_MSTP704); 101 /* Choice USB0SEL */ 102 clrsetbits_le32(HSUSB_REG_UGCTRL2, HSUSB_REG_UGCTRL2_USB0SEL, 103 HSUSB_REG_UGCTRL2_USB0SEL_EHCI); 104 /* low power status */ 105 setbits_le16(HSUSB_REG_LPSTS, HSUSB_REG_LPSTS_SUSPM_NORMAL); 106 107 return 0; 108 } 109 110 int dram_init(void) 111 { 112 if (fdtdec_setup_memory_size() != 0) 113 return -EINVAL; 114 115 return 0; 116 } 117 118 int dram_init_banksize(void) 119 { 120 fdtdec_setup_memory_banksize(); 121 122 return 0; 123 } 124 125 #define RST_BASE 0xE6160000 126 #define RST_CA57RESCNT (RST_BASE + 0x40) 127 #define RST_CA53RESCNT (RST_BASE + 0x44) 128 #define RST_RSTOUTCR (RST_BASE + 0x58) 129 #define RST_CODE 0xA5A5000F 130 131 void reset_cpu(ulong addr) 132 { 133 #if defined(CONFIG_SYS_I2C) && defined(CONFIG_SYS_I2C_SH) 134 i2c_reg_write(CONFIG_SYS_I2C_POWERIC_ADDR, 0x20, 0x80); 135 #else 136 /* only CA57 ? */ 137 writel(RST_CODE, RST_CA57RESCNT); 138 #endif 139 } 140