1/*
2 *   Bitmain Antminer S1 board support
3 *
4 *  Copyright (C) 2015 L. D. Pinney <ldpinney@gmail.com>
5 *
6 *  This program is free software; you can redistribute it and/or modify it
7 *  under the terms of the GNU General Public License version 2 as published
8 *  by the Free Software Foundation.
9 */
10
11#include <linux/gpio.h>
12
13#include <asm/mach-ath79/ath79.h>
14#include <asm/mach-ath79/ar71xx_regs.h>
15
16#include "common.h"
17#include "dev-eth.h"
18#include "dev-gpio-buttons.h"
19#include "dev-leds-gpio.h"
20#include "dev-m25p80.h"
21#include "dev-wmac.h"
22#include "machtypes.h"
23#include "dev-usb.h"
24
25#define ANTMINER_S1_GPIO_BTN_RESET		11
26
27#define ANTMINER_S1_GPIO_LED_SYSTEM		23
28#define ANTMINER_S1_GPIO_LED_WLAN		0
29#define ANTMINER_S1_GPIO_USB_POWER		26
30
31#define ANTMINER_S1_KEYSPOLL_INTERVAL	20	/* msecs */
32#define ANTMINER_S1_KEYSDEBOUNCE_INTERVAL (3 * ANTMINER_S1_KEYSPOLL_INTERVAL)
33
34static const char *ANTMINER_S1_part_probes[] = {
35	"tp-link",
36	NULL,
37};
38
39static struct flash_platform_data ANTMINER_S1_flash_data = {
40	.part_probes	= ANTMINER_S1_part_probes,
41};
42
43static struct gpio_led ANTMINER_S1_leds_gpio[] __initdata = {
44	{
45		.name		= "antminer-s1:green:system",
46		.gpio		= ANTMINER_S1_GPIO_LED_SYSTEM,
47		.active_low	= 0,
48	},{
49		.name		= "antminer-s1:green:wlan",
50		.gpio		= ANTMINER_S1_GPIO_LED_WLAN,
51		.active_low	= 0,
52	},
53};
54
55static struct gpio_keys_button ANTMINER_S1_GPIO_keys[] __initdata = {
56	{
57		.desc		= "reset",
58		.type		= EV_KEY,
59		.code		= KEY_RESTART,
60		.debounce_interval = ANTMINER_S1_KEYSDEBOUNCE_INTERVAL,
61		.gpio		= ANTMINER_S1_GPIO_BTN_RESET,
62		.active_low	= 0,
63	},
64};
65
66static void __init antminer_s1_setup(void)
67{
68	u8 *mac = (u8 *) KSEG1ADDR(0x1f01fc00);
69	u8 *ee = (u8 *) KSEG1ADDR(0x1fff1000);
70
71	/* disable PHY_SWAP and PHY_ADDR_SWAP bits */
72	ath79_setup_ar933x_phy4_switch(false, false);
73
74	ath79_register_leds_gpio(-1, ARRAY_SIZE(ANTMINER_S1_leds_gpio),
75				 ANTMINER_S1_leds_gpio);
76
77	ath79_register_gpio_keys_polled(-1, ANTMINER_S1_KEYSPOLL_INTERVAL,
78					ARRAY_SIZE(ANTMINER_S1_GPIO_keys),
79					ANTMINER_S1_GPIO_keys);
80
81	gpio_request_one(ANTMINER_S1_GPIO_USB_POWER,
82			 GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
83			 "USB power");
84	ath79_register_usb();
85
86	ath79_register_m25p80(&ANTMINER_S1_flash_data);
87	ath79_init_mac(ath79_eth0_data.mac_addr, mac, 1);
88	ath79_init_mac(ath79_eth1_data.mac_addr, mac, -1);
89
90	ath79_register_mdio(0, 0x0);
91	ath79_register_eth(0);
92	ath79_register_eth(1);
93
94	ath79_register_wmac(ee, mac);
95}
96
97MIPS_MACHINE(ATH79_MACH_ANTMINER_S1, "ANTMINER-S1",
98	     "Antminer-S1", antminer_s1_setup);
99