/*
 * Platform setup for the MPC8xx based boards from TQM.
 *
 * Heiko Schocher <hs@denx.de>
 * Copyright 2010 DENX Software Engineering GmbH
 *
 * based on:
 * Vitaly Bordug <vbordug@ru.mvista.com>
 *
 * Copyright 2005 MontaVista Software Inc.
 *
 * Heavily modified by Scott Wood <scottwood@freescale.com>
 * Copyright 2007 Freescale Semiconductor, Inc.
 *
 * This file is licensed under the terms of the GNU General Public License
 * version 2. This program is licensed "as is" without any warranty of any
 * kind, whether express or implied.
 */

#include <linux/init.h>
#include <linux/param.h>
#include <linux/string.h>
#include <linux/ioport.h>
#include <linux/device.h>
#include <linux/delay.h>

#include <linux/fsl_devices.h>
#include <linux/mii.h>
#include <linux/of_fdt.h>
#include <linux/of_platform.h>

#include <asm/delay.h>
#include <asm/io.h>
#include <asm/machdep.h>
#include <asm/page.h>
#include <asm/processor.h>
#include <asm/time.h>
#include <asm/8xx_immap.h>
#include <asm/cpm1.h>
#include <asm/udbg.h>

#include "mpc8xx.h"
#include "pic.h"

struct cpm_pin {
        int port, pin, flags;
};

static struct cpm_pin tqm8xx_pins[] __initdata = {
        /* SMC1 */
        {CPM_PORTB, 24, CPM_PIN_INPUT}, /* RX */
        {CPM_PORTB, 25, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TX */

        /* SCC1 */
        {CPM_PORTA, 5, CPM_PIN_INPUT}, /* CLK1 */
        {CPM_PORTA, 7, CPM_PIN_INPUT}, /* CLK2 */
        {CPM_PORTA, 14, CPM_PIN_INPUT}, /* TX */
        {CPM_PORTA, 15, CPM_PIN_INPUT}, /* RX */
        {CPM_PORTC, 15, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TENA */
        {CPM_PORTC, 10, CPM_PIN_INPUT | CPM_PIN_SECONDARY | CPM_PIN_GPIO},
        {CPM_PORTC, 11, CPM_PIN_INPUT | CPM_PIN_SECONDARY | CPM_PIN_GPIO},
};

static struct cpm_pin tqm8xx_fec_pins[] __initdata = {
        /* MII */
        {CPM_PORTD, 3, CPM_PIN_OUTPUT},
        {CPM_PORTD, 4, CPM_PIN_OUTPUT},
        {CPM_PORTD, 5, CPM_PIN_OUTPUT},
        {CPM_PORTD, 6, CPM_PIN_OUTPUT},
        {CPM_PORTD, 7, CPM_PIN_OUTPUT},
        {CPM_PORTD, 8, CPM_PIN_OUTPUT},
        {CPM_PORTD, 9, CPM_PIN_OUTPUT},
        {CPM_PORTD, 10, CPM_PIN_OUTPUT},
        {CPM_PORTD, 11, CPM_PIN_OUTPUT},
        {CPM_PORTD, 12, CPM_PIN_OUTPUT},
        {CPM_PORTD, 13, CPM_PIN_OUTPUT},
        {CPM_PORTD, 14, CPM_PIN_OUTPUT},
        {CPM_PORTD, 15, CPM_PIN_OUTPUT},
};

static void __init init_pins(int n, struct cpm_pin *pin)
{
        int i;

        for (i = 0; i < n; i++) {
                cpm1_set_pin(pin->port, pin->pin, pin->flags);
                pin++;
        }
}

static void __init init_ioports(void)
{
        struct device_node *dnode;
        struct property *prop;
        int     len;

        init_pins(ARRAY_SIZE(tqm8xx_pins), &tqm8xx_pins[0]);

        cpm1_clk_setup(CPM_CLK_SMC1, CPM_BRG1, CPM_CLK_RTX);

        dnode = of_find_node_by_name(NULL, "aliases");
        if (dnode == NULL)
                return;
        prop = of_find_property(dnode, "ethernet1", &len);

        of_node_put(dnode);

        if (prop == NULL)
                return;

        /* init FEC pins */
        init_pins(ARRAY_SIZE(tqm8xx_fec_pins), &tqm8xx_fec_pins[0]);
}

static void __init tqm8xx_setup_arch(void)
{
        cpm_reset();
        init_ioports();
}

static const struct of_device_id of_bus_ids[] __initconst = {
        { .name = "soc", },
        { .name = "cpm", },
        { .name = "localbus", },
        { .compatible = "simple-bus" },
        {},
};

static int __init declare_of_platform_devices(void)
{
        of_platform_bus_probe(NULL, of_bus_ids, NULL);

        return 0;
}
machine_device_initcall(tqm8xx, declare_of_platform_devices);

define_machine(tqm8xx) {
        .name                   = "TQM8xx",
        .compatible             = "tqc,tqm8xx",
        .setup_arch             = tqm8xx_setup_arch,
        .init_IRQ               = mpc8xx_pic_init,
        .get_irq                = mpc8xx_get_irq,
        .restart                = mpc8xx_restart,
        .calibrate_decr         = mpc8xx_calibrate_decr,
        .set_rtc_time           = mpc8xx_set_rtc_time,
        .get_rtc_time           = mpc8xx_get_rtc_time,
        .progress               = udbg_progress,
};