163 lines
3.5 KiB
C
163 lines
3.5 KiB
C
// SPDX-License-Identifier: (GPL-2.0 OR MIT)
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/*
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* Copyright 2021-2022 Innovative Advantage Inc.
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*/
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#include <linux/mfd/ocelot.h>
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#include <linux/platform_device.h>
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#include <linux/regmap.h>
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#include <soc/mscc/ocelot.h>
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#include <soc/mscc/vsc7514_regs.h>
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#include "felix.h"
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#define VSC7514_NUM_PORTS 11
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#define OCELOT_PORT_MODE_SERDES (OCELOT_PORT_MODE_SGMII | \
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OCELOT_PORT_MODE_QSGMII)
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static const u32 vsc7512_port_modes[VSC7514_NUM_PORTS] = {
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OCELOT_PORT_MODE_INTERNAL,
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OCELOT_PORT_MODE_INTERNAL,
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OCELOT_PORT_MODE_INTERNAL,
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OCELOT_PORT_MODE_INTERNAL,
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OCELOT_PORT_MODE_NONE,
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OCELOT_PORT_MODE_NONE,
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OCELOT_PORT_MODE_NONE,
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OCELOT_PORT_MODE_NONE,
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OCELOT_PORT_MODE_NONE,
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OCELOT_PORT_MODE_NONE,
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OCELOT_PORT_MODE_NONE,
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};
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static const struct ocelot_ops ocelot_ext_ops = {
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.reset = ocelot_reset,
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.wm_enc = ocelot_wm_enc,
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.wm_dec = ocelot_wm_dec,
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.wm_stat = ocelot_wm_stat,
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.port_to_netdev = felix_port_to_netdev,
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.netdev_to_port = felix_netdev_to_port,
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};
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static const char * const vsc7512_resource_names[TARGET_MAX] = {
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[SYS] = "sys",
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[REW] = "rew",
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[S0] = "s0",
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[S1] = "s1",
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[S2] = "s2",
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[QS] = "qs",
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[QSYS] = "qsys",
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[ANA] = "ana",
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};
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static const struct felix_info vsc7512_info = {
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.resource_names = vsc7512_resource_names,
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.regfields = vsc7514_regfields,
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.map = vsc7514_regmap,
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.ops = &ocelot_ext_ops,
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.vcap = vsc7514_vcap_props,
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.num_mact_rows = 1024,
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.num_ports = VSC7514_NUM_PORTS,
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.num_tx_queues = OCELOT_NUM_TC,
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.port_modes = vsc7512_port_modes,
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};
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static int ocelot_ext_probe(struct platform_device *pdev)
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{
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struct device *dev = &pdev->dev;
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struct dsa_switch *ds;
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struct ocelot *ocelot;
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struct felix *felix;
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int err;
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felix = kzalloc(sizeof(*felix), GFP_KERNEL);
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if (!felix)
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return -ENOMEM;
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dev_set_drvdata(dev, felix);
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ocelot = &felix->ocelot;
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ocelot->dev = dev;
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ocelot->num_flooding_pgids = 1;
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felix->info = &vsc7512_info;
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ds = kzalloc(sizeof(*ds), GFP_KERNEL);
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if (!ds) {
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err = -ENOMEM;
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dev_err_probe(dev, err, "Failed to allocate DSA switch\n");
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goto err_free_felix;
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}
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ds->dev = dev;
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ds->num_ports = felix->info->num_ports;
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ds->num_tx_queues = felix->info->num_tx_queues;
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ds->ops = &felix_switch_ops;
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ds->priv = ocelot;
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felix->ds = ds;
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felix->tag_proto = DSA_TAG_PROTO_OCELOT;
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err = dsa_register_switch(ds);
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if (err) {
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dev_err_probe(dev, err, "Failed to register DSA switch\n");
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goto err_free_ds;
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}
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return 0;
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err_free_ds:
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kfree(ds);
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err_free_felix:
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kfree(felix);
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return err;
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}
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static int ocelot_ext_remove(struct platform_device *pdev)
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{
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struct felix *felix = dev_get_drvdata(&pdev->dev);
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if (!felix)
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return 0;
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dsa_unregister_switch(felix->ds);
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kfree(felix->ds);
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kfree(felix);
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return 0;
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}
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static void ocelot_ext_shutdown(struct platform_device *pdev)
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{
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struct felix *felix = dev_get_drvdata(&pdev->dev);
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if (!felix)
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return;
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dsa_switch_shutdown(felix->ds);
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dev_set_drvdata(&pdev->dev, NULL);
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}
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static const struct of_device_id ocelot_ext_switch_of_match[] = {
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{ .compatible = "mscc,vsc7512-switch" },
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{ },
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};
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MODULE_DEVICE_TABLE(of, ocelot_ext_switch_of_match);
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static struct platform_driver ocelot_ext_switch_driver = {
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.driver = {
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.name = "ocelot-ext-switch",
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.of_match_table = of_match_ptr(ocelot_ext_switch_of_match),
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},
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.probe = ocelot_ext_probe,
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.remove = ocelot_ext_remove,
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.shutdown = ocelot_ext_shutdown,
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};
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module_platform_driver(ocelot_ext_switch_driver);
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MODULE_DESCRIPTION("External Ocelot Switch driver");
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MODULE_LICENSE("GPL");
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MODULE_IMPORT_NS(MFD_OCELOT);
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