1 // SPDX-License-Identifier: GPL-2.0+
3 * board/renesas/salvator-x/salvator-x.c
4 * This file is Salvator-X/Salvator-XS board support.
6 * Copyright (C) 2015-2017 Renesas Electronics Corporation
7 * Copyright (C) 2015 Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
14 #include <dm/platform_data/serial_sh.h>
15 #include <asm/processor.h>
16 #include <asm/mach-types.h>
18 #include <linux/errno.h>
19 #include <asm/arch/sys_proto.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>
28 DECLARE_GLOBAL_DATA_PTR;
30 #define CPGWPCR 0xE6150904
31 #define CPGWPR 0xE615090C
33 #define CLK2MHZ(clk) (clk / 1000 / 1000)
36 struct rcar_rwdt *rwdt = (struct rcar_rwdt *)RWDT_BASE;
37 struct rcar_swdt *swdt = (struct rcar_swdt *)SWDT_BASE;
40 writel(0xA5A5A500, &rwdt->rwtcsra);
41 writel(0xA5A5A500, &swdt->swtcsra);
43 writel(0xA5A50000, CPGWPCR);
44 writel(0xFFFFFFFF, CPGWPR);
47 #define GSX_MSTP112 BIT(12) /* 3DG */
48 #define TMU0_MSTP125 BIT(25) /* secure */
49 #define TMU1_MSTP124 BIT(24) /* non-secure */
50 #define SCIF2_MSTP310 BIT(10) /* SCIF2 */
51 #define DVFS_MSTP926 BIT(26)
52 #define HSUSB_MSTP704 BIT(4) /* HSUSB */
54 int board_early_init_f(void)
56 /* TMU0,1 */ /* which use ? */
57 mstp_clrbits_le32(MSTPSR1, SMSTPCR1, TMU0_MSTP125 | TMU1_MSTP124);
59 #if defined(CONFIG_SYS_I2C) && defined(CONFIG_SYS_I2C_SH)
61 mstp_clrbits_le32(MSTPSR9, SMSTPCR9, DVFS_MSTP926);
67 /* R/- 32 Power status register 2(3DG) */
68 #define SYSC_PWRSR2 0xE6180100
69 /* -/W 32 Power resume control register 2 (3DG) */
70 #define SYSC_PWRONCR2 0xE618010C
72 /* HSUSB block registers */
73 #define HSUSB_REG_LPSTS 0xE6590102
74 #define HSUSB_REG_LPSTS_SUSPM_NORMAL BIT(14)
75 #define HSUSB_REG_UGCTRL2 0xE6590184
76 #define HSUSB_REG_UGCTRL2_USB0SEL 0x30
77 #define HSUSB_REG_UGCTRL2_USB0SEL_EHCI 0x10
81 u32 cpu_type = rmobile_get_cpu_type();
83 /* adress of boot parameters */
84 gd->bd->bi_boot_params = CONFIG_SYS_TEXT_BASE + 0x50000;
86 if (cpu_type == RMOBILE_CPU_TYPE_R8A7795) {
87 /* GSX: force power and clock supply */
88 writel(0x0000001F, SYSC_PWRONCR2);
89 while (readl(SYSC_PWRSR2) != 0x000003E0)
92 mstp_clrbits_le32(MSTPSR1, SMSTPCR1, GSX_MSTP112);
96 setbits_le32(PFC_PUEN6, PUEN_USB1_OVC | PUEN_USB1_PWEN);
98 /* Configure the HSUSB block */
99 mstp_clrbits_le32(MSTPSR7, SMSTPCR7, HSUSB_MSTP704);
101 clrsetbits_le32(HSUSB_REG_UGCTRL2, HSUSB_REG_UGCTRL2_USB0SEL,
102 HSUSB_REG_UGCTRL2_USB0SEL_EHCI);
103 /* low power status */
104 setbits_le16(HSUSB_REG_LPSTS, HSUSB_REG_LPSTS_SUSPM_NORMAL);
111 if (fdtdec_setup_memory_size() != 0)
117 int dram_init_banksize(void)
119 fdtdec_setup_memory_banksize();
124 #define RST_BASE 0xE6160000
125 #define RST_CA57RESCNT (RST_BASE + 0x40)
126 #define RST_CA53RESCNT (RST_BASE + 0x44)
127 #define RST_RSTOUTCR (RST_BASE + 0x58)
128 #define RST_CODE 0xA5A5000F
130 void reset_cpu(ulong addr)
132 #if defined(CONFIG_SYS_I2C) && defined(CONFIG_SYS_I2C_SH)
133 i2c_reg_write(CONFIG_SYS_I2C_POWERIC_ADDR, 0x20, 0x80);
136 writel(RST_CODE, RST_CA57RESCNT);