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65 lines
2.1 KiB
65 lines
2.1 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* |
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* (c) Copyright 2006 Benjamin Herrenschmidt, IBM Corp. |
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* <[email protected]> |
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*/ |
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#ifndef _ASM_POWERPC_DCR_H |
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#define _ASM_POWERPC_DCR_H |
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#ifdef __KERNEL__ |
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#ifndef __ASSEMBLY__ |
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#ifdef CONFIG_PPC_DCR |
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#ifdef CONFIG_PPC_DCR_NATIVE |
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#include <asm/dcr-native.h> |
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#endif |
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#ifdef CONFIG_PPC_DCR_MMIO |
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#include <asm/dcr-mmio.h> |
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#endif |
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/* Indirection layer for providing both NATIVE and MMIO support. */ |
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#if defined(CONFIG_PPC_DCR_NATIVE) && defined(CONFIG_PPC_DCR_MMIO) |
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#include <asm/dcr-generic.h> |
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#define DCR_MAP_OK(host) dcr_map_ok_generic(host) |
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#define dcr_map(dev, dcr_n, dcr_c) dcr_map_generic(dev, dcr_n, dcr_c) |
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#define dcr_unmap(host, dcr_c) dcr_unmap_generic(host, dcr_c) |
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#define dcr_read(host, dcr_n) dcr_read_generic(host, dcr_n) |
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#define dcr_write(host, dcr_n, value) dcr_write_generic(host, dcr_n, value) |
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#else |
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#ifdef CONFIG_PPC_DCR_NATIVE |
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typedef dcr_host_native_t dcr_host_t; |
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#define DCR_MAP_OK(host) dcr_map_ok_native(host) |
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#define dcr_map(dev, dcr_n, dcr_c) dcr_map_native(dev, dcr_n, dcr_c) |
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#define dcr_unmap(host, dcr_c) dcr_unmap_native(host, dcr_c) |
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#define dcr_read(host, dcr_n) dcr_read_native(host, dcr_n) |
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#define dcr_write(host, dcr_n, value) dcr_write_native(host, dcr_n, value) |
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#else |
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typedef dcr_host_mmio_t dcr_host_t; |
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#define DCR_MAP_OK(host) dcr_map_ok_mmio(host) |
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#define dcr_map(dev, dcr_n, dcr_c) dcr_map_mmio(dev, dcr_n, dcr_c) |
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#define dcr_unmap(host, dcr_c) dcr_unmap_mmio(host, dcr_c) |
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#define dcr_read(host, dcr_n) dcr_read_mmio(host, dcr_n) |
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#define dcr_write(host, dcr_n, value) dcr_write_mmio(host, dcr_n, value) |
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#endif |
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#endif /* defined(CONFIG_PPC_DCR_NATIVE) && defined(CONFIG_PPC_DCR_MMIO) */ |
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/* |
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* additional helpers to read the DCR * base from the device-tree |
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*/ |
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struct device_node; |
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extern unsigned int dcr_resource_start(const struct device_node *np, |
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unsigned int index); |
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extern unsigned int dcr_resource_len(const struct device_node *np, |
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unsigned int index); |
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#endif /* CONFIG_PPC_DCR */ |
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#endif /* __ASSEMBLY__ */ |
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#endif /* __KERNEL__ */ |
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#endif /* _ASM_POWERPC_DCR_H */
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