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/*
 *  OpenMesh OM5P-ACv2 support
 *
 *  Copyright (C) 2013 Marek Lindner <marek@open-mesh.com>
 *  Copyright (C) 2014-2016 Sven Eckelmann <sven@open-mesh.com>
 *  Copyright (C) 2015 Open-Mesh - Jim Collar <jim.collar@eqware.net>
 *
 *  This program is free software; you can redistribute it and/or modify it
 *  under the terms of the GNU General Public License version 2 as published
 *  by the Free Software Foundation.
 */

#include <linux/gpio.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/platform_device.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
#include <linux/i2c-gpio.h>
#include <linux/platform_data/phy-at803x.h>

#include <asm/mach-ath79/ar71xx_regs.h>
#include <asm/mach-ath79/ath79.h>

#include "common.h"
#include "dev-ap9x-pci.h"
#include "dev-eth.h"
#include "dev-gpio-buttons.h"
#include "dev-leds-gpio.h"
#include "dev-m25p80.h"
#include "dev-wmac.h"
#include "machtypes.h"
#include "pci.h"

#define OM5PACV2_GPIO_LED_POWER 14
#define OM5PACV2_GPIO_LED_GREEN 13
#define OM5PACV2_GPIO_LED_RED   23
#define OM5PACV2_GPIO_LED_YELLOW        15
#define OM5PACV2_GPIO_BTN_RESET 1
#define OM5PACV2_GPIO_I2C_SCL   18
#define OM5PACV2_GPIO_I2C_SDA   19
#define OM5PACV2_GPIO_PA_DCDC   2
#define OM5PACV2_GPIO_PA_HIGH   16

#define OM5PACV2_KEYS_POLL_INTERVAL     20      /* msecs */
#define OM5PACV2_KEYS_DEBOUNCE_INTERVAL (3 * OM5PACV2_KEYS_POLL_INTERVAL)

#define OM5PACV2_WMAC_CALDATA_OFFSET    0x1000

static struct gpio_led om5pacv2_leds_gpio[] __initdata = {
        {
                .name           = "om5pac:blue:power",
                .gpio           = OM5PACV2_GPIO_LED_POWER,
                .active_low     = 1,
        }, {
                .name           = "om5pac:red:wifi",
                .gpio           = OM5PACV2_GPIO_LED_RED,
                .active_low     = 1,
        }, {
                .name           = "om5pac:yellow:wifi",
                .gpio           = OM5PACV2_GPIO_LED_YELLOW,
                .active_low     = 1,
        }, {
                .name           = "om5pac:green:wifi",
                .gpio           = OM5PACV2_GPIO_LED_GREEN,
                .active_low     = 1,
        }
};

static struct gpio_keys_button om5pacv2_gpio_keys[] __initdata = {
        {
                .desc           = "reset",
                .type           = EV_KEY,
                .code           = KEY_RESTART,
                .debounce_interval = OM5PACV2_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = OM5PACV2_GPIO_BTN_RESET,
                .active_low     = 1,
        }
};

static struct i2c_gpio_platform_data om5pacv2_i2c_device_platdata = {
        .sda_pin                = OM5PACV2_GPIO_I2C_SDA,
        .scl_pin                = OM5PACV2_GPIO_I2C_SCL,
        .udelay                 = 10,
        .sda_is_open_drain      = 1,
        .scl_is_open_drain      = 1,
};

static struct platform_device om5pacv2_i2c_device = {
        .name           = "i2c-gpio",
        .id             = 0,
        .dev            = {
                .platform_data  = &om5pacv2_i2c_device_platdata,
        },
};

static struct i2c_board_info om5pacv2_i2c_devs[] __initdata = {
        {
                I2C_BOARD_INFO("tmp423", 0x4e),
        },
};

static struct flash_platform_data om5pacv2_flash_data = {
        .type = "mx25l12805d",
};

static struct at803x_platform_data om5pacv2_an_at803x_data = {
        .disable_smarteee = 1,
        .enable_rgmii_rx_delay = 1,
        .enable_rgmii_tx_delay = 1,
};

static struct at803x_platform_data om5pacv2_an_at8031_data = {
        .disable_smarteee = 1,
        .enable_rgmii_rx_delay = 1,
        .enable_rgmii_tx_delay = 1,
};

static struct mdio_board_info om5pacv2_an_mdio0_info[] = {
        {
                .bus_id = "ag71xx-mdio.0",
                .phy_addr = 4,
                .platform_data = &om5pacv2_an_at803x_data,
        },
        {
                .bus_id = "ag71xx-mdio.1",
                .phy_addr = 1,
                .platform_data = &om5pacv2_an_at8031_data,
        },
};

static void __init om5p_acv2_setup_qca955x_eth_cfg(u32 mask,
                                                   unsigned int rxd,
                                                   unsigned int rxdv,
                                                   unsigned int txd,
                                                   unsigned int txe)
{
        void __iomem *base;
        u32 t;

        base = ioremap(QCA955X_GMAC_BASE, QCA955X_GMAC_SIZE);

        t = mask;
        t |= rxd << QCA955X_ETH_CFG_RXD_DELAY_SHIFT;
        t |= rxdv << QCA955X_ETH_CFG_RDV_DELAY_SHIFT;
        t |= txd << QCA955X_ETH_CFG_TXD_DELAY_SHIFT;
        t |= txe << QCA955X_ETH_CFG_TXE_DELAY_SHIFT;

        __raw_writel(t, base + QCA955X_GMAC_REG_ETH_CFG);

        iounmap(base);
}

static void __init om5p_acv2_setup(void)
{
        u8 *art = (u8 *)KSEG1ADDR(0x1fff0000);
        u8 mac[6];

        /* power amplifier high power, 4.2V at RFFM4203/4503 instead of 3.3 */
        ath79_gpio_function_enable(QCA955X_GPIO_FUNC_JTAG_DISABLE);
        ath79_gpio_output_select(OM5PACV2_GPIO_PA_DCDC, QCA955X_GPIO_OUT_GPIO);
        ath79_gpio_output_select(OM5PACV2_GPIO_PA_HIGH, QCA955X_GPIO_OUT_GPIO);
        gpio_request_one(OM5PACV2_GPIO_PA_DCDC, GPIOF_OUT_INIT_HIGH,
                         "PA DC/DC");
        gpio_request_one(OM5PACV2_GPIO_PA_HIGH, GPIOF_OUT_INIT_HIGH, "PA HIGH");

        /* temperature sensor */
        platform_device_register(&om5pacv2_i2c_device);
        i2c_register_board_info(0, om5pacv2_i2c_devs,
                                ARRAY_SIZE(om5pacv2_i2c_devs));

        ath79_register_m25p80(&om5pacv2_flash_data);
        ath79_register_leds_gpio(-1, ARRAY_SIZE(om5pacv2_leds_gpio),
                                 om5pacv2_leds_gpio);
        ath79_register_gpio_keys_polled(-1, OM5PACV2_KEYS_POLL_INTERVAL,
                                        ARRAY_SIZE(om5pacv2_gpio_keys),
                                        om5pacv2_gpio_keys);

        ath79_init_mac(mac, art, 0x02);
        ath79_register_wmac(art + OM5PACV2_WMAC_CALDATA_OFFSET, mac);

        om5p_acv2_setup_qca955x_eth_cfg(QCA955X_ETH_CFG_RGMII_EN, 2, 2, 0, 0);
        ath79_register_mdio(0, 0x0);
        ath79_register_mdio(1, 0x0);

        mdiobus_register_board_info(om5pacv2_an_mdio0_info,
                                    ARRAY_SIZE(om5pacv2_an_mdio0_info));

        ath79_init_mac(ath79_eth0_data.mac_addr, art, 0x00);
        ath79_init_mac(ath79_eth1_data.mac_addr, art, 0x01);

        /* GMAC0 is connected to the PHY4 */
        ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
        ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;
        ath79_eth0_data.phy_mask = BIT(4);
        ath79_eth0_pll_data.pll_1000 = 0x82000101;
        ath79_eth0_pll_data.pll_100 = 0x80000101;
        ath79_eth0_pll_data.pll_10 = 0x80001313;
        ath79_register_eth(0);

        /* GMAC1 is connected to MDIO1 in SGMII mode */
        ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_SGMII;
        ath79_eth1_data.mii_bus_dev = &ath79_mdio1_device.dev;
        ath79_eth1_data.phy_mask = BIT(1);
        ath79_eth1_pll_data.pll_1000 = 0x03000101;
        ath79_eth1_pll_data.pll_100 = 0x80000101;
        ath79_eth1_pll_data.pll_10 = 0x80001313;
        ath79_eth1_data.speed = SPEED_1000;
        ath79_eth1_data.duplex = DUPLEX_FULL;
        ath79_register_eth(1);

        ath79_register_pci();
}

MIPS_MACHINE(ATH79_MACH_OM5P_ACv2, "OM5P-ACv2", "OpenMesh OM5P ACv2", om5p_acv2_setup);