162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0-or-later */ 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * (c) Copyright 2006 Benjamin Herrenschmidt, IBM Corp. 462306a36Sopenharmony_ci * <benh@kernel.crashing.org> 562306a36Sopenharmony_ci */ 662306a36Sopenharmony_ci 762306a36Sopenharmony_ci#ifndef _ASM_POWERPC_DCR_GENERIC_H 862306a36Sopenharmony_ci#define _ASM_POWERPC_DCR_GENERIC_H 962306a36Sopenharmony_ci#ifdef __KERNEL__ 1062306a36Sopenharmony_ci#ifndef __ASSEMBLY__ 1162306a36Sopenharmony_ci 1262306a36Sopenharmony_cienum host_type_t {DCR_HOST_MMIO, DCR_HOST_NATIVE, DCR_HOST_INVALID}; 1362306a36Sopenharmony_ci 1462306a36Sopenharmony_citypedef struct { 1562306a36Sopenharmony_ci enum host_type_t type; 1662306a36Sopenharmony_ci union { 1762306a36Sopenharmony_ci dcr_host_mmio_t mmio; 1862306a36Sopenharmony_ci dcr_host_native_t native; 1962306a36Sopenharmony_ci } host; 2062306a36Sopenharmony_ci} dcr_host_t; 2162306a36Sopenharmony_ci 2262306a36Sopenharmony_ciextern bool dcr_map_ok_generic(dcr_host_t host); 2362306a36Sopenharmony_ci 2462306a36Sopenharmony_ciextern dcr_host_t dcr_map_generic(struct device_node *dev, unsigned int dcr_n, 2562306a36Sopenharmony_ci unsigned int dcr_c); 2662306a36Sopenharmony_ciextern void dcr_unmap_generic(dcr_host_t host, unsigned int dcr_c); 2762306a36Sopenharmony_ci 2862306a36Sopenharmony_ciextern u32 dcr_read_generic(dcr_host_t host, unsigned int dcr_n); 2962306a36Sopenharmony_ci 3062306a36Sopenharmony_ciextern void dcr_write_generic(dcr_host_t host, unsigned int dcr_n, u32 value); 3162306a36Sopenharmony_ci 3262306a36Sopenharmony_ci#endif /* __ASSEMBLY__ */ 3362306a36Sopenharmony_ci#endif /* __KERNEL__ */ 3462306a36Sopenharmony_ci#endif /* _ASM_POWERPC_DCR_GENERIC_H */ 3562306a36Sopenharmony_ci 3662306a36Sopenharmony_ci 37