14c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt/* 24c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt * (c) Copyright 2006 Benjamin Herrenschmidt, IBM Corp. 34c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt * <benh@kernel.crashing.org> 44c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt * 54c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt * This program is free software; you can redistribute it and/or modify 64c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt * it under the terms of the GNU General Public License as published by 74c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt * the Free Software Foundation; either version 2 of the License, or 84c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt * (at your option) any later version. 94c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt * 104c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt * This program is distributed in the hope that it will be useful, 114c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt * but WITHOUT ANY WARRANTY; without even the implied warranty of 124c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See 134c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt * the GNU General Public License for more details. 144c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt * 154c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt * You should have received a copy of the GNU General Public License 164c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt * along with this program; if not, write to the Free Software 174c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 184c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt */ 194c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt 204c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt#ifndef _ASM_POWERPC_DCR_H 214c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt#define _ASM_POWERPC_DCR_H 224c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt#ifdef __KERNEL__ 23b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer#ifndef __ASSEMBLY__ 2445d8e7aaf47668550fdb6c2d3abbe42f48a76df2Kumar Gala#ifdef CONFIG_PPC_DCR 254c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt 264c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt#ifdef CONFIG_PPC_DCR_NATIVE 274c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt#include <asm/dcr-native.h> 28b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer#endif 29b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer 30b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer#ifdef CONFIG_PPC_DCR_MMIO 314c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt#include <asm/dcr-mmio.h> 324c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt#endif 334c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt 34b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer 35b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer/* Indirection layer for providing both NATIVE and MMIO support. */ 36b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer 37b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer#if defined(CONFIG_PPC_DCR_NATIVE) && defined(CONFIG_PPC_DCR_MMIO) 38b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer 39b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer#include <asm/dcr-generic.h> 40b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer 41b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer#define DCR_MAP_OK(host) dcr_map_ok_generic(host) 42b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer#define dcr_map(dev, dcr_n, dcr_c) dcr_map_generic(dev, dcr_n, dcr_c) 43b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer#define dcr_unmap(host, dcr_c) dcr_unmap_generic(host, dcr_c) 44b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer#define dcr_read(host, dcr_n) dcr_read_generic(host, dcr_n) 45b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer#define dcr_write(host, dcr_n, value) dcr_write_generic(host, dcr_n, value) 46b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer 47b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer#else 48b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer 49b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer#ifdef CONFIG_PPC_DCR_NATIVE 50b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffertypedef dcr_host_native_t dcr_host_t; 51b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer#define DCR_MAP_OK(host) dcr_map_ok_native(host) 52b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer#define dcr_map(dev, dcr_n, dcr_c) dcr_map_native(dev, dcr_n, dcr_c) 53b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer#define dcr_unmap(host, dcr_c) dcr_unmap_native(host, dcr_c) 54b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer#define dcr_read(host, dcr_n) dcr_read_native(host, dcr_n) 55b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer#define dcr_write(host, dcr_n, value) dcr_write_native(host, dcr_n, value) 56b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer#else 57b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffertypedef dcr_host_mmio_t dcr_host_t; 58b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer#define DCR_MAP_OK(host) dcr_map_ok_mmio(host) 59b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer#define dcr_map(dev, dcr_n, dcr_c) dcr_map_mmio(dev, dcr_n, dcr_c) 60b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer#define dcr_unmap(host, dcr_c) dcr_unmap_mmio(host, dcr_c) 61b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer#define dcr_read(host, dcr_n) dcr_read_mmio(host, dcr_n) 62b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer#define dcr_write(host, dcr_n, value) dcr_write_mmio(host, dcr_n, value) 63b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer#endif 64b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer 65b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer#endif /* defined(CONFIG_PPC_DCR_NATIVE) && defined(CONFIG_PPC_DCR_MMIO) */ 66b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer 674c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt/* 689c4cb82515130c62224e23fdf7c13c8f6c59c614Kumar Gala * additional helpers to read the DCR * base from the device-tree 694c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt */ 70a2c70211fa072f4076f0e59f909b69105f69072eDavid Gibsonstruct device_node; 71e14d77490d3e1da833cff4fee52674c52684ce77Grant Ericksonextern unsigned int dcr_resource_start(const struct device_node *np, 724c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt unsigned int index); 73e14d77490d3e1da833cff4fee52674c52684ce77Grant Ericksonextern unsigned int dcr_resource_len(const struct device_node *np, 744c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt unsigned int index); 7545d8e7aaf47668550fdb6c2d3abbe42f48a76df2Kumar Gala#endif /* CONFIG_PPC_DCR */ 76b786af117b360843349cf66165c4efa0217ca2a7Stephen Neuendorffer#endif /* __ASSEMBLY__ */ 774c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt#endif /* __KERNEL__ */ 784c75a6f441cdd1c69a6c173bc7944e12c2ba6f84Benjamin Herrenschmidt#endif /* _ASM_POWERPC_DCR_H */ 79