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 <cpu_func.h>
12 #include <image.h>
13 #include <init.h>
14 #include <malloc.h>
15 #include <netdev.h>
16 #include <dm.h>
17 #include <asm/global_data.h>
18 #include <dm/platform_data/serial_sh.h>
19 #include <asm/processor.h>
20 #include <asm/mach-types.h>
21 #include <asm/io.h>
22 #include <linux/bitops.h>
23 #include <linux/errno.h>
24 #include <asm/arch/sys_proto.h>
25 #include <asm/gpio.h>
26 #include <asm/arch/gpio.h>
27 #include <asm/arch/rmobile.h>
28 #include <asm/arch/rcar-mstp.h>
29 #include <asm/arch/sh_sdhi.h>
30 #include <i2c.h>
31 #include <mmc.h>
32
33 DECLARE_GLOBAL_DATA_PTR;
34
35 #define DVFS_MSTP926 BIT(26)
36 #define HSUSB_MSTP704 BIT(4) /* HSUSB */
37
board_early_init_f(void)38 int board_early_init_f(void)
39 {
40 #if CONFIG_IS_ENABLED(SYS_I2C_LEGACY) && defined(CONFIG_SYS_I2C_SH)
41 /* DVFS for reset */
42 mstp_clrbits_le32(SMSTPCR9, SMSTPCR9, DVFS_MSTP926);
43 #endif
44 return 0;
45 }
46
47 /* HSUSB block registers */
48 #define HSUSB_REG_LPSTS 0xE6590102
49 #define HSUSB_REG_LPSTS_SUSPM_NORMAL BIT(14)
50 #define HSUSB_REG_UGCTRL2 0xE6590184
51 #define HSUSB_REG_UGCTRL2_USB0SEL 0x30
52 #define HSUSB_REG_UGCTRL2_USB0SEL_EHCI 0x10
53
board_init(void)54 int board_init(void)
55 {
56 /* USB1 pull-up */
57 setbits_le32(PFC_PUEN6, PUEN_USB1_OVC | PUEN_USB1_PWEN);
58
59 /* Configure the HSUSB block */
60 mstp_clrbits_le32(SMSTPCR7, SMSTPCR7, HSUSB_MSTP704);
61 /* Choice USB0SEL */
62 clrsetbits_le32(HSUSB_REG_UGCTRL2, HSUSB_REG_UGCTRL2_USB0SEL,
63 HSUSB_REG_UGCTRL2_USB0SEL_EHCI);
64 /* low power status */
65 setbits_le16(HSUSB_REG_LPSTS, HSUSB_REG_LPSTS_SUSPM_NORMAL);
66
67 return 0;
68 }
69
70 #define RST_BASE 0xE6160000
71 #define RST_CA57RESCNT (RST_BASE + 0x40)
72 #define RST_CA53RESCNT (RST_BASE + 0x44)
73 #define RST_RSTOUTCR (RST_BASE + 0x58)
74 #define RST_CODE 0xA5A5000F
75
reset_cpu(void)76 void reset_cpu(void)
77 {
78 #if CONFIG_IS_ENABLED(SYS_I2C_LEGACY) && defined(CONFIG_SYS_I2C_SH)
79 i2c_reg_write(CONFIG_SYS_I2C_POWERIC_ADDR, 0x20, 0x80);
80 #else
81 /* only CA57 ? */
82 writel(RST_CODE, RST_CA57RESCNT);
83 #endif
84 }
85
86 #ifdef CONFIG_MULTI_DTB_FIT
board_fit_config_name_match(const char * name)87 int board_fit_config_name_match(const char *name)
88 {
89 /* PRR driver is not available yet */
90 u32 cpu_type = rmobile_get_cpu_type();
91
92 if ((cpu_type == RMOBILE_CPU_TYPE_R8A7795) &&
93 !strcmp(name, "r8a77950-salvator-x-u-boot"))
94 return 0;
95
96 if ((cpu_type == RMOBILE_CPU_TYPE_R8A7796) &&
97 !strcmp(name, "r8a77960-salvator-x-u-boot"))
98 return 0;
99
100 if ((cpu_type == RMOBILE_CPU_TYPE_R8A77965) &&
101 !strcmp(name, "r8a77965-salvator-x-u-boot"))
102 return 0;
103
104 return -1;
105 }
106 #endif
107