2 * MikroTik RouterBOARD 750/750GL support
4 * Copyright (C) 2010-2012 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/export.h>
12 #include <linux/platform_device.h>
14 #include <asm/mach-ath79/ar71xx_regs.h>
15 #include <asm/mach-ath79/ath79.h>
16 #include <asm/mach-ath79/mach-rb750.h>
20 #include "machtypes.h"
22 static struct rb750_led_data rb750_leds[] = {
24 .name = "rb750:green:act",
25 .mask = RB750_LED_ACT,
28 .name = "rb750:green:port1",
29 .mask = RB750_LED_PORT5,
32 .name = "rb750:green:port2",
33 .mask = RB750_LED_PORT4,
36 .name = "rb750:green:port3",
37 .mask = RB750_LED_PORT3,
40 .name = "rb750:green:port4",
41 .mask = RB750_LED_PORT2,
44 .name = "rb750:green:port5",
45 .mask = RB750_LED_PORT1,
50 static struct rb750_led_platform_data rb750_leds_data;
51 static struct platform_device rb750_leds_device = {
54 .platform_data = &rb750_leds_data,
58 static struct rb7xx_nand_platform_data rb750_nand_data;
59 static struct platform_device rb750_nand_device = {
63 .platform_data = &rb750_nand_data,
67 static void rb750_latch_change(u32 mask_clr, u32 mask_set)
69 static DEFINE_SPINLOCK(lock);
70 static u32 latch_set = RB750_LED_BITS | RB750_LVC573_LE;
76 spin_lock_irqsave(&lock, flags);
78 if ((mask_clr & BIT(31)) != 0 &&
79 (latch_set & RB750_LVC573_LE) == 0) {
83 latch_set = (latch_set | mask_set) & ~mask_clr;
84 latch_clr = (latch_clr | mask_clr) & ~mask_set;
87 latch_oe = __raw_readl(ath79_gpio_base + AR71XX_GPIO_REG_OE);
89 if (likely(latch_set & RB750_LVC573_LE)) {
90 void __iomem *base = ath79_gpio_base;
92 t = __raw_readl(base + AR71XX_GPIO_REG_OE);
93 t |= mask_clr | latch_oe | mask_set;
95 __raw_writel(t, base + AR71XX_GPIO_REG_OE);
96 __raw_writel(latch_clr, base + AR71XX_GPIO_REG_CLEAR);
97 __raw_writel(latch_set, base + AR71XX_GPIO_REG_SET);
98 } else if (mask_clr & RB750_LVC573_LE) {
99 void __iomem *base = ath79_gpio_base;
101 latch_oe = __raw_readl(base + AR71XX_GPIO_REG_OE);
102 __raw_writel(RB750_LVC573_LE, base + AR71XX_GPIO_REG_CLEAR);
104 __raw_readl(base + AR71XX_GPIO_REG_CLEAR);
108 spin_unlock_irqrestore(&lock, flags);
111 static void rb750_nand_enable_pins(void)
113 rb750_latch_change(RB750_LVC573_LE, 0);
114 ath79_gpio_function_setup(AR724X_GPIO_FUNC_JTAG_DISABLE,
115 AR724X_GPIO_FUNC_SPI_EN);
118 static void rb750_nand_disable_pins(void)
120 ath79_gpio_function_setup(AR724X_GPIO_FUNC_SPI_EN,
121 AR724X_GPIO_FUNC_JTAG_DISABLE);
122 rb750_latch_change(0, RB750_LVC573_LE);
125 static void __init rb750_setup(void)
127 ath79_gpio_function_disable(AR724X_GPIO_FUNC_ETH_SWITCH_LED0_EN |
128 AR724X_GPIO_FUNC_ETH_SWITCH_LED1_EN |
129 AR724X_GPIO_FUNC_ETH_SWITCH_LED2_EN |
130 AR724X_GPIO_FUNC_ETH_SWITCH_LED3_EN |
131 AR724X_GPIO_FUNC_ETH_SWITCH_LED4_EN);
133 ath79_init_mac(ath79_eth0_data.mac_addr, ath79_mac_base, 0);
134 ath79_init_mac(ath79_eth1_data.mac_addr, ath79_mac_base, 1);
136 ath79_register_mdio(0, 0x0);
139 ath79_register_eth(1);
142 ath79_register_eth(0);
144 rb750_leds_data.num_leds = ARRAY_SIZE(rb750_leds);
145 rb750_leds_data.leds = rb750_leds;
146 rb750_leds_data.latch_change = rb750_latch_change;
147 platform_device_register(&rb750_leds_device);
149 rb750_nand_data.nce_line = RB750_NAND_NCE;
150 rb750_nand_data.enable_pins = rb750_nand_enable_pins;
151 rb750_nand_data.disable_pins = rb750_nand_disable_pins;
152 rb750_nand_data.latch_change = rb750_latch_change;
153 platform_device_register(&rb750_nand_device);
156 MIPS_MACHINE(ATH79_MACH_RB_750, "750i", "MikroTik RouterBOARD 750",