ar71xx: move arch specific files to files-2.6.39
[openwrt/svn-archive/archive.git] / target / linux / ar71xx / files-2.6.39 / arch / mips / ar71xx / mach-rb750.c
1 /*
2 * MikroTik RouterBOARD 750 support
3 *
4 * Copyright (C) 2010 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/platform_device.h>
12 #include <asm/mach-ar71xx/ar71xx.h>
13 #include <asm/mach-ar71xx/mach-rb750.h>
14
15 #include "machtype.h"
16 #include "devices.h"
17
18 static struct rb750_led_data rb750_leds[] = {
19 {
20 .name = "rb750:green:act",
21 .mask = RB750_LED_ACT,
22 .active_low = 1,
23 }, {
24 .name = "rb750:green:port1",
25 .mask = RB750_LED_PORT5,
26 .active_low = 1,
27 }, {
28 .name = "rb750:green:port2",
29 .mask = RB750_LED_PORT4,
30 .active_low = 1,
31 }, {
32 .name = "rb750:green:port3",
33 .mask = RB750_LED_PORT3,
34 .active_low = 1,
35 }, {
36 .name = "rb750:green:port4",
37 .mask = RB750_LED_PORT2,
38 .active_low = 1,
39 }, {
40 .name = "rb750:green:port5",
41 .mask = RB750_LED_PORT1,
42 .active_low = 1,
43 }
44 };
45
46 static struct rb750_led_platform_data rb750_leds_data = {
47 .num_leds = ARRAY_SIZE(rb750_leds),
48 .leds = rb750_leds,
49 };
50
51 static struct platform_device rb750_leds_device = {
52 .name = "leds-rb750",
53 .dev = {
54 .platform_data = &rb750_leds_data,
55 }
56 };
57
58 static struct platform_device rb750_nand_device = {
59 .name = "rb750-nand",
60 .id = -1,
61 };
62
63 int rb750_latch_change(u32 mask_clr, u32 mask_set)
64 {
65 static DEFINE_SPINLOCK(lock);
66 static u32 latch_set = RB750_LED_BITS | RB750_LVC573_LE;
67 static u32 latch_oe;
68 static u32 latch_clr;
69 unsigned long flags;
70 u32 t;
71 int ret = 0;
72
73 spin_lock_irqsave(&lock, flags);
74
75 if ((mask_clr & BIT(31)) != 0 &&
76 (latch_set & RB750_LVC573_LE) == 0) {
77 goto unlock;
78 }
79
80 latch_set = (latch_set | mask_set) & ~mask_clr;
81 latch_clr = (latch_clr | mask_clr) & ~mask_set;
82
83 if (latch_oe == 0)
84 latch_oe = __raw_readl(ar71xx_gpio_base + AR71XX_GPIO_REG_OE);
85
86 if (likely(latch_set & RB750_LVC573_LE)) {
87 void __iomem *base = ar71xx_gpio_base;
88
89 t = __raw_readl(base + AR71XX_GPIO_REG_OE);
90 t |= mask_clr | latch_oe | mask_set;
91
92 __raw_writel(t, base + AR71XX_GPIO_REG_OE);
93 __raw_writel(latch_clr, base + AR71XX_GPIO_REG_CLEAR);
94 __raw_writel(latch_set, base + AR71XX_GPIO_REG_SET);
95 } else if (mask_clr & RB750_LVC573_LE) {
96 void __iomem *base = ar71xx_gpio_base;
97
98 latch_oe = __raw_readl(base + AR71XX_GPIO_REG_OE);
99 __raw_writel(RB750_LVC573_LE, base + AR71XX_GPIO_REG_CLEAR);
100 /* flush write */
101 __raw_readl(base + AR71XX_GPIO_REG_CLEAR);
102 }
103
104 ret = 1;
105
106 unlock:
107 spin_unlock_irqrestore(&lock, flags);
108 return ret;
109 }
110 EXPORT_SYMBOL_GPL(rb750_latch_change);
111
112 static void __init rb750_setup(void)
113 {
114 ar71xx_gpio_function_disable(AR724X_GPIO_FUNC_ETH_SWITCH_LED0_EN |
115 AR724X_GPIO_FUNC_ETH_SWITCH_LED1_EN |
116 AR724X_GPIO_FUNC_ETH_SWITCH_LED2_EN |
117 AR724X_GPIO_FUNC_ETH_SWITCH_LED3_EN |
118 AR724X_GPIO_FUNC_ETH_SWITCH_LED4_EN);
119
120 ar71xx_init_mac(ar71xx_eth0_data.mac_addr, ar71xx_mac_base, 0);
121 ar71xx_init_mac(ar71xx_eth1_data.mac_addr, ar71xx_mac_base, 1);
122
123 ar71xx_add_device_mdio(0, 0x0);
124
125 /* LAN ports */
126 ar71xx_add_device_eth(1);
127
128 /* WAN port */
129 ar71xx_add_device_eth(0);
130
131 platform_device_register(&rb750_leds_device);
132 platform_device_register(&rb750_nand_device);
133 }
134
135 MIPS_MACHINE(AR71XX_MACH_RB_750, "750i", "MikroTik RouterBOARD 750",
136 rb750_setup);