1/*
2 *   Bitmain Antminer S3 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_S3_GPIO_LED_WLAN		0
26#define ANTMINER_S3_GPIO_LED_SYSTEM		17
27#define ANTMINER_S3_GPIO_LED_LAN		22
28#define ANTMINER_S3_GPIO_USB_POWER		26
29
30#define ANTMINER_S3_GPIO_BTN_RESET		11
31
32#define ANTMINER_S3_KEYSPOLL_INTERVAL	88	/* msecs */
33#define ANTMINER_S3_KEYSDEBOUNCE_INTERVAL (3 * ANTMINER_S3_KEYSPOLL_INTERVAL)
34
35static const char *ANTMINER_S3_part_probes[] = {
36	"tp-link",
37	NULL,
38};
39
40static struct flash_platform_data ANTMINER_S3_flash_data = {
41	.part_probes	= ANTMINER_S3_part_probes,
42};
43
44static struct gpio_led ANTMINER_S3_leds_gpio[] __initdata = {
45	{
46		.name		= "antminer-s3:green:wlan",
47		.gpio		= ANTMINER_S3_GPIO_LED_WLAN,
48		.active_low	= 0,
49	},{
50		.name		= "antminer-s3:green:system",
51		.gpio		= ANTMINER_S3_GPIO_LED_SYSTEM,
52		.active_low	= 0,
53	},{
54		.name		= "antminer-s3:yellow:lan",
55		.gpio		= ANTMINER_S3_GPIO_LED_LAN,
56		.active_low	= 0,
57	},
58};
59
60static struct gpio_keys_button ANTMINER_S3_GPIO_keys[] __initdata = {
61	{
62		.desc		= "reset",
63		.type		= EV_KEY,
64		.code		= KEY_RESTART,
65		.debounce_interval = ANTMINER_S3_KEYSDEBOUNCE_INTERVAL,
66		.gpio		= ANTMINER_S3_GPIO_BTN_RESET,
67		.active_low	= 0,
68	},
69};
70
71static void __init antminer_s3_setup(void)
72{
73	u8 *mac = (u8 *) KSEG1ADDR(0x1f01fc00);
74	u8 *ee = (u8 *) KSEG1ADDR(0x1fff1000);
75
76	/* disable PHY_SWAP and PHY_ADDR_SWAP bits */
77	ath79_setup_ar933x_phy4_switch(false, false);
78
79	ath79_register_leds_gpio(-1, ARRAY_SIZE(ANTMINER_S3_leds_gpio),
80				 ANTMINER_S3_leds_gpio);
81
82	ath79_register_gpio_keys_polled(-1, ANTMINER_S3_KEYSPOLL_INTERVAL,
83					ARRAY_SIZE(ANTMINER_S3_GPIO_keys),
84					ANTMINER_S3_GPIO_keys);
85
86	gpio_request_one(ANTMINER_S3_GPIO_USB_POWER,
87			 GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
88			 "USB power");
89	ath79_register_usb();
90
91	ath79_register_m25p80(&ANTMINER_S3_flash_data);
92	ath79_init_mac(ath79_eth0_data.mac_addr, mac, 1);
93	ath79_init_mac(ath79_eth1_data.mac_addr, mac, -1);
94
95	ath79_register_mdio(0, 0x0);
96	ath79_register_eth(0);
97	ath79_register_eth(1);
98
99	ath79_register_wmac(ee, mac);
100}
101
102MIPS_MACHINE(ATH79_MACH_ANTMINER_S3, "ANTMINER-S3",
103	     "Antminer-S3", antminer_s3_setup);
104