summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/include/asm/dcr-generic.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/include/asm/dcr-generic.h')
-rw-r--r--arch/powerpc/include/asm/dcr-generic.h49
1 files changed, 49 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/dcr-generic.h b/arch/powerpc/include/asm/dcr-generic.h
new file mode 100644
index 00000000000..35b71599ec4
--- /dev/null
+++ b/arch/powerpc/include/asm/dcr-generic.h
@@ -0,0 +1,49 @@
+/*
+ * (c) Copyright 2006 Benjamin Herrenschmidt, IBM Corp.
+ * <benh@kernel.crashing.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
+ * the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef _ASM_POWERPC_DCR_GENERIC_H
+#define _ASM_POWERPC_DCR_GENERIC_H
+#ifdef __KERNEL__
+#ifndef __ASSEMBLY__
+
+enum host_type_t {DCR_HOST_MMIO, DCR_HOST_NATIVE, DCR_HOST_INVALID};
+
+typedef struct {
+ enum host_type_t type;
+ union {
+ dcr_host_mmio_t mmio;
+ dcr_host_native_t native;
+ } host;
+} dcr_host_t;
+
+extern bool dcr_map_ok_generic(dcr_host_t host);
+
+extern dcr_host_t dcr_map_generic(struct device_node *dev, unsigned int dcr_n,
+ unsigned int dcr_c);
+extern void dcr_unmap_generic(dcr_host_t host, unsigned int dcr_c);
+
+extern u32 dcr_read_generic(dcr_host_t host, unsigned int dcr_n);
+
+extern void dcr_write_generic(dcr_host_t host, unsigned int dcr_n, u32 value);
+
+#endif /* __ASSEMBLY__ */
+#endif /* __KERNEL__ */
+#endif /* _ASM_POWERPC_DCR_GENERIC_H */
+
+