linux/drivers/soc/loongson/loongson2_guts.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Author: Yinbo Zhu <[email protected]>
 * Copyright (C) 2022-2023 Loongson Technology Corporation Limited
 */

#include <linux/io.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/of_fdt.h>
#include <linux/sys_soc.h>
#include <linux/of_address.h>
#include <linux/platform_device.h>

static struct soc_device_attribute soc_dev_attr;
static struct soc_device *soc_dev;

/*
 * Global Utility Registers.
 *
 * Not all registers defined in this structure are available on all chips, so
 * you are expected to know whether a given register actually exists on your
 * chip before you access it.
 *
 * Also, some registers are similar on different chips but have slightly
 * different names.  In these cases, one name is chosen to avoid extraneous
 * #ifdefs.
 */
struct scfg_guts { … };

static struct guts { … } *guts;

struct loongson2_soc_die_attr { … };

/* SoC die attribute definition for Loongson-2 platform */
static const struct loongson2_soc_die_attr loongson2_soc_die[] = …;

static const struct loongson2_soc_die_attr *loongson2_soc_die_match(
	u32 svr, const struct loongson2_soc_die_attr *matches)
{ … }

static u32 loongson2_guts_get_svr(void)
{ … }

static int loongson2_guts_probe(struct platform_device *pdev)
{ … }

static void loongson2_guts_remove(struct platform_device *dev)
{ … }

/*
 * Table for matching compatible strings, for device tree
 * guts node, for Loongson-2 SoCs.
 */
static const struct of_device_id loongson2_guts_of_match[] = …;
MODULE_DEVICE_TABLE(of, loongson2_guts_of_match);

static struct platform_driver loongson2_guts_driver = …;

static int __init loongson2_guts_init(void)
{ … }
core_initcall(loongson2_guts_init);

static void __exit loongson2_guts_exit(void)
{ … }
module_exit(loongson2_guts_exit);

MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;