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- /* 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
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