1/*
2 *  ALFA NETWORK Tube2H board support
3 *
4 *  Copyright (C) 2014 Gabor Juhos <juhosg@openwrt.org>
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
24#define TUBE2H_GPIO_LED_SIGNAL4		0
25#define TUBE2H_GPIO_LED_SIGNAL3		1
26#define TUBE2H_GPIO_LED_SIGNAL2		13
27#define TUBE2H_GPIO_LED_LAN		17
28#define TUBE2H_GPIO_LED_SIGNAL1		27
29#define TUBE2H_GPIO_EXT_LNA		28
30
31#define TUBE2H_GPIO_BTN_RESET		12
32
33#define TUBE2H_KEYS_POLL_INTERVAL	20	/* msecs */
34#define TUBE2H_KEYS_DEBOUNCE_INTERVAL	(3 * TUBE2H_KEYS_POLL_INTERVAL)
35
36#define TUBE2H_ART_ADDRESS		0x1f7f0000
37#define TUBE2H_LAN_MAC_OFFSET		0x06
38#define TUBE2H_CALDATA_OFFSET		0x1000
39
40static struct gpio_led tube2h_leds_gpio[] __initdata = {
41	{
42		.name		= "alfa:blue:lan",
43		.gpio		= TUBE2H_GPIO_LED_LAN,
44		.active_low	= 1,
45	},
46	{
47		.name		= "alfa:red:signal1",
48		.gpio		= TUBE2H_GPIO_LED_SIGNAL1,
49		.active_low	= 1,
50	},
51	{
52		.name		= "alfa:orange:signal2",
53		.gpio		= TUBE2H_GPIO_LED_SIGNAL2,
54		.active_low	= 0,
55	},
56	{
57		.name		= "alfa:green:signal3",
58		.gpio		= TUBE2H_GPIO_LED_SIGNAL3,
59		.active_low	= 0,
60	},
61	{
62		.name		= "alfa:green:signal4",
63		.gpio		= TUBE2H_GPIO_LED_SIGNAL4,
64		.active_low	= 0,
65	},
66};
67
68static struct gpio_keys_button tube2h_gpio_keys[] __initdata = {
69	{
70		.desc		= "Reset button",
71		.type		= EV_KEY,
72		.code		= KEY_RESTART,
73		.debounce_interval = TUBE2H_KEYS_DEBOUNCE_INTERVAL,
74		.gpio		= TUBE2H_GPIO_BTN_RESET,
75		.active_low	= 1,
76	},
77};
78
79static void __init tube2h_setup(void)
80{
81	u8 *art = (u8 *) KSEG1ADDR(TUBE2H_ART_ADDRESS);
82	u32 t;
83
84	ath79_gpio_function_disable(AR933X_GPIO_FUNC_JTAG_DISABLE |
85				    AR933X_GPIO_FUNC_ETH_SWITCH_LED0_EN |
86				    AR933X_GPIO_FUNC_ETH_SWITCH_LED1_EN |
87				    AR933X_GPIO_FUNC_ETH_SWITCH_LED2_EN |
88				    AR933X_GPIO_FUNC_ETH_SWITCH_LED3_EN |
89				    AR933X_GPIO_FUNC_ETH_SWITCH_LED4_EN);
90
91	/* Ensure that GPIO26 and GPIO27 are controllable by software */
92	t = ath79_reset_rr(AR933X_RESET_REG_BOOTSTRAP);
93	t |= AR933X_BOOTSTRAP_MDIO_GPIO_EN;
94	ath79_reset_wr(AR933X_RESET_REG_BOOTSTRAP, t);
95
96	gpio_request_one(TUBE2H_GPIO_EXT_LNA,
97			GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
98			"external LNA0");
99
100	ath79_register_wmac(art + TUBE2H_CALDATA_OFFSET, NULL);
101
102	ath79_register_m25p80(NULL);
103
104	ath79_register_leds_gpio(-1, ARRAY_SIZE(tube2h_leds_gpio),
105				 tube2h_leds_gpio);
106	ath79_register_gpio_keys_polled(-1, TUBE2H_KEYS_POLL_INTERVAL,
107					ARRAY_SIZE(tube2h_gpio_keys),
108					tube2h_gpio_keys);
109
110	ath79_init_mac(ath79_eth0_data.mac_addr,
111		       art + TUBE2H_LAN_MAC_OFFSET, 0);
112	ath79_register_mdio(0, 0x0);
113	ath79_register_eth(0);
114}
115
116MIPS_MACHINE(ATH79_MACH_TUBE2H, "TUBE2H", "ALFA NETWORK Tube2H",
117	     tube2h_setup);
118
119