/* SPDX-License-Identifier: GPL-2.0-or-later */
|
/*
|
* Copyright (C) 2020 Western Digital Corporation or its affiliates.
|
* Copyright (C) 2020 Google, Inc
|
*/
|
|
#ifndef _ASM_RISCV_SOC_H
|
#define _ASM_RISCV_SOC_H
|
|
#include <linux/of.h>
|
#include <linux/linkage.h>
|
#include <linux/types.h>
|
|
#define SOC_EARLY_INIT_DECLARE(name, compat, fn) \
|
static const struct of_device_id __soc_early_init__##name \
|
__used __section("__soc_early_init_table") \
|
= { .compatible = compat, .data = fn }
|
|
void soc_early_init(void);
|
|
extern unsigned long __soc_early_init_table_start;
|
extern unsigned long __soc_early_init_table_end;
|
|
/*
|
* Allows Linux to provide a device tree, which is necessary for SOCs that
|
* don't provide a useful one on their own.
|
*/
|
struct soc_builtin_dtb {
|
unsigned long vendor_id;
|
unsigned long arch_id;
|
unsigned long imp_id;
|
void *(*dtb_func)(void);
|
};
|
|
/*
|
* The argument name must specify a valid DTS file name without the dts
|
* extension.
|
*/
|
#define SOC_BUILTIN_DTB_DECLARE(name, vendor, arch, impl) \
|
extern void *__dtb_##name##_begin; \
|
\
|
static __init __used \
|
void *__soc_builtin_dtb_f__##name(void) \
|
{ \
|
return (void *)&__dtb_##name##_begin; \
|
} \
|
\
|
static const struct soc_builtin_dtb __soc_builtin_dtb__##name \
|
__used __section("__soc_builtin_dtb_table") = \
|
{ \
|
.vendor_id = vendor, \
|
.arch_id = arch, \
|
.imp_id = impl, \
|
.dtb_func = __soc_builtin_dtb_f__##name, \
|
}
|
|
extern unsigned long __soc_builtin_dtb_table_start;
|
extern unsigned long __soc_builtin_dtb_table_end;
|
|
void *soc_lookup_builtin_dtb(void);
|
|
#endif
|
