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// 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_NONE,
OCELOT_PORT_MODE_NONE,
OCELOT_PORT_MODE_NONE,
OCELOT_PORT_MODE_NONE,
OCELOT_PORT_MODE_NONE,
OCELOT_PORT_MODE_NONE,
OCELOT_PORT_MODE_NONE,
};
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,
.num_tx_queues = OCELOT_NUM_TC,
.port_modes = vsc7512_port_modes,
};
static int ocelot_ext_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct dsa_switch *ds;
struct ocelot *ocelot;
struct felix *felix;
int err;
felix = kzalloc(sizeof(*felix), GFP_KERNEL);
if (!felix)
return -ENOMEM;
dev_set_drvdata(dev, felix);
ocelot = &felix->ocelot;
ocelot->dev = dev;
ocelot->num_flooding_pgids = 1;
felix->info = &vsc7512_info;
ds = kzalloc(sizeof(*ds), GFP_KERNEL);
if (!ds) {
err = -ENOMEM;
dev_err_probe(dev, err, "Failed to allocate DSA switch\n");
goto err_free_felix;
}
ds->dev = dev;
ds->num_ports = felix->info->num_ports;
ds->num_tx_queues = felix->info->num_tx_queues;
ds->ops = &felix_switch_ops;
ds->priv = ocelot;
felix->ds = ds;
felix->tag_proto = DSA_TAG_PROTO_OCELOT;
err = dsa_register_switch(ds);
if (err) {
dev_err_probe(dev, err, "Failed to register DSA switch\n");
goto err_free_ds;
}
return 0;
err_free_ds:
kfree(ds);
err_free_felix:
kfree(felix);
return err;
}
static int ocelot_ext_remove(struct platform_device *pdev)
{
struct felix *felix = dev_get_drvdata(&pdev->dev);
if (!felix)
return 0;
dsa_unregister_switch(felix->ds);
kfree(felix->ds);
kfree(felix);
return 0;
}
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 = of_match_ptr(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);
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