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
s_init(void)30 void s_init(void)
31 {
32 }
33
34 #define DVFS_MSTP926 BIT(26)
35 #define HSUSB_MSTP704 BIT(4) /* HSUSB */
36
board_early_init_f(void)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
board_init(void)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 #define RST_BASE 0xE6160000
73 #define RST_CA57RESCNT (RST_BASE + 0x40)
74 #define RST_CA53RESCNT (RST_BASE + 0x44)
75 #define RST_RSTOUTCR (RST_BASE + 0x58)
76 #define RST_CODE 0xA5A5000F
77
reset_cpu(ulong addr)78 void reset_cpu(ulong addr)
79 {
80 #if defined(CONFIG_SYS_I2C) && defined(CONFIG_SYS_I2C_SH)
81 i2c_reg_write(CONFIG_SYS_I2C_POWERIC_ADDR, 0x20, 0x80);
82 #else
83 /* only CA57 ? */
84 writel(RST_CODE, RST_CA57RESCNT);
85 #endif
86 }
87
88 #ifdef CONFIG_MULTI_DTB_FIT
board_fit_config_name_match(const char * name)89 int board_fit_config_name_match(const char *name)
90 {
91 /* PRR driver is not available yet */
92 u32 cpu_type = rmobile_get_cpu_type();
93
94 if ((cpu_type == RMOBILE_CPU_TYPE_R8A7795) &&
95 !strcmp(name, "r8a7795-salvator-x-u-boot"))
96 return 0;
97
98 if ((cpu_type == RMOBILE_CPU_TYPE_R8A7796) &&
99 !strcmp(name, "r8a7796-salvator-x-u-boot"))
100 return 0;
101
102 if ((cpu_type == RMOBILE_CPU_TYPE_R8A77965) &&
103 !strcmp(name, "r8a77965-salvator-x-u-boot"))
104 return 0;
105
106 return -1;
107 }
108 #endif
109