1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * board/renesas/draak/draak.c 4 * This file is Draak board support. 5 * 6 * Copyright (C) 2017 Marek Vasut <marek.vasut+renesas@gmail.com> 7 */ 8 9 #include <common.h> 10 #include <malloc.h> 11 #include <netdev.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/gpio.h> 21 #include <asm/arch/rmobile.h> 22 #include <asm/arch/rcar-mstp.h> 23 #include <asm/arch/sh_sdhi.h> 24 #include <i2c.h> 25 #include <mmc.h> 26 27 DECLARE_GLOBAL_DATA_PTR; 28 29 #define CPGWPCR 0xE6150904 30 #define CPGWPR 0xE6150900 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 writel(0x5A5AFFFF, CPGWPR); 43 writel(0xA5A50000, CPGWPCR); 44 } 45 46 #define GSX_MSTP112 BIT(12) /* 3DG */ 47 #define SCIF2_MSTP310 BIT(10) /* SCIF2 */ 48 #define DVFS_MSTP926 BIT(26) 49 #define HSUSB_MSTP704 BIT(4) /* HSUSB */ 50 51 int board_early_init_f(void) 52 { 53 #if defined(CONFIG_SYS_I2C) && defined(CONFIG_SYS_I2C_SH) 54 /* DVFS for reset */ 55 mstp_clrbits_le32(MSTPSR9, SMSTPCR9, DVFS_MSTP926); 56 #endif 57 return 0; 58 } 59 60 /* SYSC */ 61 /* R/- 32 Power status register 2(3DG) */ 62 #define SYSC_PWRSR2 0xE6180100 63 /* -/W 32 Power resume control register 2 (3DG) */ 64 #define SYSC_PWRONCR2 0xE618010C 65 66 /* HSUSB block registers */ 67 #define HSUSB_REG_LPSTS 0xE6590102 68 #define HSUSB_REG_LPSTS_SUSPM_NORMAL BIT(14) 69 #define HSUSB_REG_UGCTRL2 0xE6590184 70 #define HSUSB_REG_UGCTRL2_USB0SEL 0x30 71 #define HSUSB_REG_UGCTRL2_USB0SEL_EHCI 0x10 72 73 int board_init(void) 74 { 75 /* adress of boot parameters */ 76 gd->bd->bi_boot_params = CONFIG_SYS_TEXT_BASE + 0x50000; 77 78 /* USB1 pull-up */ 79 setbits_le32(PFC_PUEN6, PUEN_USB1_OVC | PUEN_USB1_PWEN); 80 81 /* Configure the HSUSB block */ 82 mstp_clrbits_le32(MSTPSR7, SMSTPCR7, HSUSB_MSTP704); 83 /* Choice USB0SEL */ 84 clrsetbits_le32(HSUSB_REG_UGCTRL2, HSUSB_REG_UGCTRL2_USB0SEL, 85 HSUSB_REG_UGCTRL2_USB0SEL_EHCI); 86 /* low power status */ 87 setbits_le16(HSUSB_REG_LPSTS, HSUSB_REG_LPSTS_SUSPM_NORMAL); 88 89 return 0; 90 } 91 92 int dram_init(void) 93 { 94 if (fdtdec_setup_mem_size_base() != 0) 95 return -EINVAL; 96 97 return 0; 98 } 99 100 int dram_init_banksize(void) 101 { 102 fdtdec_setup_memory_banksize(); 103 104 return 0; 105 } 106 107 #define RST_BASE 0xE6160000 108 #define RST_CA57RESCNT (RST_BASE + 0x40) 109 #define RST_CA53RESCNT (RST_BASE + 0x44) 110 #define RST_RSTOUTCR (RST_BASE + 0x58) 111 #define RST_CA57_CODE 0xA5A5000F 112 #define RST_CA53_CODE 0x5A5A000F 113 114 void reset_cpu(ulong addr) 115 { 116 unsigned long midr, cputype; 117 118 asm volatile("mrs %0, midr_el1" : "=r" (midr)); 119 cputype = (midr >> 4) & 0xfff; 120 121 if (cputype == 0xd03) 122 writel(RST_CA53_CODE, RST_CA53RESCNT); 123 else if (cputype == 0xd07) 124 writel(RST_CA57_CODE, RST_CA57RESCNT); 125 else 126 hang(); 127 } 128