drivers/net/dsa/ocelot/ocelot_ext.c

Source file repositories/reference/linux-study-clean/drivers/net/dsa/ocelot/ocelot_ext.c

File Facts

System
Linux kernel
Corpus path
drivers/net/dsa/ocelot/ocelot_ext.c
Extension
.c
Size
2754 bytes
Lines
113
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

// 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);

Annotation

Implementation Notes