// SPDX-License-Identifier: (GPL-2.0 OR MIT)
/*
 * Copyright 2021-2022 Innovative Advantage Inc.
 */

#include <linux/mfd/ocelot.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <soc/mscc/ocelot.h>
#include <soc/mscc/vsc7514_regs.h>
#include "felix.h"

#define VSC7514_NUM_PORTS               11

#define OCELOT_PORT_MODE_SERDES         (OCELOT_PORT_MODE_SGMII | \
                                         OCELOT_PORT_MODE_QSGMII)

static const u32 vsc7512_port_modes[VSC7514_NUM_PORTS] = {
        OCELOT_PORT_MODE_INTERNAL,
        OCELOT_PORT_MODE_INTERNAL,
        OCELOT_PORT_MODE_INTERNAL,
        OCELOT_PORT_MODE_INTERNAL,
        OCELOT_PORT_MODE_SERDES,
        OCELOT_PORT_MODE_SERDES,
        OCELOT_PORT_MODE_SERDES,
        OCELOT_PORT_MODE_SERDES,
        OCELOT_PORT_MODE_SERDES,
        OCELOT_PORT_MODE_SGMII,
        OCELOT_PORT_MODE_SERDES,
};

static const struct ocelot_ops ocelot_ext_ops = {
        .reset          = ocelot_reset,
        .wm_enc         = ocelot_wm_enc,
        .wm_dec         = ocelot_wm_dec,
        .wm_stat        = ocelot_wm_stat,
        .port_to_netdev = felix_port_to_netdev,
        .netdev_to_port = felix_netdev_to_port,
};

static const char * const vsc7512_resource_names[TARGET_MAX] = {
        [SYS] = "sys",
        [REW] = "rew",
        [S0] = "s0",
        [S1] = "s1",
        [S2] = "s2",
        [QS] = "qs",
        [QSYS] = "qsys",
        [ANA] = "ana",
};

static const struct felix_info vsc7512_info = {
        .resource_names                 = vsc7512_resource_names,
        .regfields                      = vsc7514_regfields,
        .map                            = vsc7514_regmap,
        .ops                            = &ocelot_ext_ops,
        .vcap                           = vsc7514_vcap_props,
        .num_mact_rows                  = 1024,
        .num_ports                      = VSC7514_NUM_PORTS,
        .port_modes                     = vsc7512_port_modes,
        .phylink_mac_config             = ocelot_phylink_mac_config,
        .configure_serdes               = ocelot_port_configure_serdes,
};

static int ocelot_ext_probe(struct platform_device *pdev)
{
        return felix_register_switch(&pdev->dev, 0, 1, false, false,
                                     DSA_TAG_PROTO_OCELOT, &vsc7512_info);
}

static void ocelot_ext_remove(struct platform_device *pdev)
{
        struct felix *felix = dev_get_drvdata(&pdev->dev);

        if (!felix)
                return;

        dsa_unregister_switch(felix->ds);
}

static void ocelot_ext_shutdown(struct platform_device *pdev)
{
        struct felix *felix = dev_get_drvdata(&pdev->dev);

        if (!felix)
                return;

        dsa_switch_shutdown(felix->ds);

        dev_set_drvdata(&pdev->dev, NULL);
}

static const struct of_device_id ocelot_ext_switch_of_match[] = {
        { .compatible = "mscc,vsc7512-switch" },
        { },
};
MODULE_DEVICE_TABLE(of, ocelot_ext_switch_of_match);

static struct platform_driver ocelot_ext_switch_driver = {
        .driver = {
                .name = "ocelot-ext-switch",
                .of_match_table = ocelot_ext_switch_of_match,
        },
        .probe = ocelot_ext_probe,
        .remove = ocelot_ext_remove,
        .shutdown = ocelot_ext_shutdown,
};
module_platform_driver(ocelot_ext_switch_driver);

MODULE_DESCRIPTION("External Ocelot Switch driver");
MODULE_LICENSE("GPL");
MODULE_IMPORT_NS("MFD_OCELOT");