154 lines
3.7 KiB
C
154 lines
3.7 KiB
C
/*
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* MikroTik RouterBOARD 750 support
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*
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* Copyright (C) 2010-2012 Gabor Juhos <juhosg@openwrt.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*/
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#include <linux/export.h>
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#include <linux/platform_device.h>
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#include <asm/mach-ath79/ar71xx_regs.h>
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#include <asm/mach-ath79/ath79.h>
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#include <asm/mach-ath79/mach-rb750.h>
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#include "common.h"
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#include "dev-eth.h"
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#include "machtypes.h"
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static struct rb750_led_data rb750_leds[] = {
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{
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.name = "rb750:green:act",
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.mask = RB750_LED_ACT,
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.active_low = 1,
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}, {
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.name = "rb750:green:port1",
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.mask = RB750_LED_PORT5,
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.active_low = 1,
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}, {
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.name = "rb750:green:port2",
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.mask = RB750_LED_PORT4,
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.active_low = 1,
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}, {
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.name = "rb750:green:port3",
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.mask = RB750_LED_PORT3,
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.active_low = 1,
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}, {
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.name = "rb750:green:port4",
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.mask = RB750_LED_PORT2,
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.active_low = 1,
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}, {
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.name = "rb750:green:port5",
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.mask = RB750_LED_PORT1,
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.active_low = 1,
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}
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};
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static struct rb750_led_platform_data rb750_leds_data = {
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.num_leds = ARRAY_SIZE(rb750_leds),
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.leds = rb750_leds,
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};
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static struct platform_device rb750_leds_device = {
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.name = "leds-rb750",
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.dev = {
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.platform_data = &rb750_leds_data,
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}
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};
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static struct platform_device rb750_nand_device = {
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.name = "rb750-nand",
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.id = -1,
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};
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int rb750_latch_change(u32 mask_clr, u32 mask_set)
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{
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static DEFINE_SPINLOCK(lock);
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static u32 latch_set = RB750_LED_BITS | RB750_LVC573_LE;
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static u32 latch_oe;
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static u32 latch_clr;
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unsigned long flags;
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u32 t;
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int ret = 0;
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spin_lock_irqsave(&lock, flags);
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if ((mask_clr & BIT(31)) != 0 &&
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(latch_set & RB750_LVC573_LE) == 0) {
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goto unlock;
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}
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latch_set = (latch_set | mask_set) & ~mask_clr;
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latch_clr = (latch_clr | mask_clr) & ~mask_set;
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if (latch_oe == 0)
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latch_oe = __raw_readl(ath79_gpio_base + AR71XX_GPIO_REG_OE);
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if (likely(latch_set & RB750_LVC573_LE)) {
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void __iomem *base = ath79_gpio_base;
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t = __raw_readl(base + AR71XX_GPIO_REG_OE);
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t |= mask_clr | latch_oe | mask_set;
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__raw_writel(t, base + AR71XX_GPIO_REG_OE);
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__raw_writel(latch_clr, base + AR71XX_GPIO_REG_CLEAR);
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__raw_writel(latch_set, base + AR71XX_GPIO_REG_SET);
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} else if (mask_clr & RB750_LVC573_LE) {
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void __iomem *base = ath79_gpio_base;
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latch_oe = __raw_readl(base + AR71XX_GPIO_REG_OE);
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__raw_writel(RB750_LVC573_LE, base + AR71XX_GPIO_REG_CLEAR);
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/* flush write */
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__raw_readl(base + AR71XX_GPIO_REG_CLEAR);
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}
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ret = 1;
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unlock:
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spin_unlock_irqrestore(&lock, flags);
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return ret;
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}
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EXPORT_SYMBOL_GPL(rb750_latch_change);
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void rb750_nand_pins_enable(void)
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{
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ath79_gpio_function_setup(AR724X_GPIO_FUNC_JTAG_DISABLE,
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AR724X_GPIO_FUNC_SPI_EN);
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}
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EXPORT_SYMBOL_GPL(rb750_nand_pins_enable);
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void rb750_nand_pins_disable(void)
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{
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ath79_gpio_function_setup(AR724X_GPIO_FUNC_SPI_EN,
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AR724X_GPIO_FUNC_JTAG_DISABLE);
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}
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EXPORT_SYMBOL_GPL(rb750_nand_pins_disable);
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static void __init rb750_setup(void)
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{
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ath79_gpio_function_disable(AR724X_GPIO_FUNC_ETH_SWITCH_LED0_EN |
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AR724X_GPIO_FUNC_ETH_SWITCH_LED1_EN |
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AR724X_GPIO_FUNC_ETH_SWITCH_LED2_EN |
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AR724X_GPIO_FUNC_ETH_SWITCH_LED3_EN |
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AR724X_GPIO_FUNC_ETH_SWITCH_LED4_EN);
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ath79_init_mac(ath79_eth0_data.mac_addr, ath79_mac_base, 0);
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ath79_init_mac(ath79_eth1_data.mac_addr, ath79_mac_base, 1);
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ath79_register_mdio(0, 0x0);
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/* LAN ports */
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ath79_register_eth(1);
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/* WAN port */
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ath79_register_eth(0);
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platform_device_register(&rb750_leds_device);
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platform_device_register(&rb750_nand_device);
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}
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MIPS_MACHINE(ATH79_MACH_RB_750, "750i", "MikroTik RouterBOARD 750",
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rb750_setup);
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