2 * MikroTik RouterBOARD 750 support
4 * Copyright (C) 2010 Gabor Juhos <juhosg@openwrt.org>
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.
11 #include <linux/platform_device.h>
12 #include <asm/mach-ar71xx/ar71xx.h>
13 #include <asm/mach-ar71xx/mach-rb750.h>
16 #include "dev-ap91-eth.h"
18 static struct rb750_led_data rb750_leds[] = {
20 .name = "rb750:green:act",
21 .mask = RB750_LED_ACT,
24 .name = "rb750:green:port1",
25 .mask = RB750_LED_PORT5,
28 .name = "rb750:green:port2",
29 .mask = RB750_LED_PORT4,
32 .name = "rb750:green:port3",
33 .mask = RB750_LED_PORT3,
36 .name = "rb750:green:port4",
37 .mask = RB750_LED_PORT2,
40 .name = "rb750:green:port5",
41 .mask = RB750_LED_PORT1,
46 static struct rb750_led_platform_data rb750_leds_data = {
47 .num_leds = ARRAY_SIZE(rb750_leds),
51 static struct platform_device rb750_leds_device = {
54 .platform_data = &rb750_leds_data,
58 static const char *rb750_port_names[AP91_ETH_NUM_PORT_NAMES] __initdata = {
65 static struct platform_device rb750_nand_device = {
70 int rb750_latch_change(u32 mask_clr, u32 mask_set)
72 static DEFINE_SPINLOCK(lock);
73 static u32 latch_set = RB750_LED_BITS | RB750_LVC573_LE;
80 spin_lock_irqsave(&lock, flags);
82 if ((mask_clr & BIT(31)) != 0 &&
83 (latch_set & RB750_LVC573_LE) == 0) {
87 latch_set = (latch_set | mask_set) & ~mask_clr;
88 latch_clr = (latch_clr | mask_clr) & ~mask_set;
91 latch_oe = __raw_readl(ar71xx_gpio_base + GPIO_REG_OE);
93 if (likely(latch_set & RB750_LVC573_LE)) {
94 void __iomem *base = ar71xx_gpio_base;
96 t = __raw_readl(base + GPIO_REG_OE);
97 t |= mask_clr | latch_oe | mask_set;
99 __raw_writel(t, base + GPIO_REG_OE);
100 __raw_writel(latch_clr, base + GPIO_REG_CLEAR);
101 __raw_writel(latch_set, base + GPIO_REG_SET);
102 } else if (mask_clr & RB750_LVC573_LE) {
103 void __iomem *base = ar71xx_gpio_base;
105 latch_oe = __raw_readl(base + GPIO_REG_OE);
106 __raw_writel(RB750_LVC573_LE, base + GPIO_REG_CLEAR);
108 __raw_readl(base + GPIO_REG_CLEAR);
114 spin_unlock_irqrestore(&lock, flags);
117 EXPORT_SYMBOL_GPL(rb750_latch_change);
119 static void __init rb750_setup(void)
121 ar71xx_gpio_function_disable(AR724X_GPIO_FUNC_ETH_SWITCH_LED0_EN |
122 AR724X_GPIO_FUNC_ETH_SWITCH_LED1_EN |
123 AR724X_GPIO_FUNC_ETH_SWITCH_LED2_EN |
124 AR724X_GPIO_FUNC_ETH_SWITCH_LED3_EN |
125 AR724X_GPIO_FUNC_ETH_SWITCH_LED4_EN);
127 ap91_eth_init(NULL, rb750_port_names);
128 platform_device_register(&rb750_leds_device);
129 platform_device_register(&rb750_nand_device);
132 MIPS_MACHINE(AR71XX_MACH_RB_750, "750i", "MikroTik RouterBOARD 750",