/*
- * PreP compliant NVRAM access
- * This needs to be updated for PPC64
+ * NVRAM definitions and access functions.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* 2 of the License, or (at your option) any later version.
*/
-#ifndef _PPC64_NVRAM_H
-#define _PPC64_NVRAM_H
+#ifndef _ASM_POWERPC_NVRAM_H
+#define _ASM_POWERPC_NVRAM_H
#define NVRW_CNT 0x20
#define NVRAM_HEADER_LEN 16 /* sizeof(struct nvram_header) */
extern void pmac_xpram_write(int xpaddr, u8 data);
/* Synchronize NVRAM */
-extern int nvram_sync(void);
+extern void nvram_sync(void);
+
+/* Normal access to NVRAM */
+extern unsigned char nvram_read_byte(int i);
+extern void nvram_write_byte(unsigned char c, int i);
/* Some offsets in XPRAM */
#define PMAC_XPRAM_MACHINE_LOC 0xe4
_IOWR('p', 0x40, int)
#define IOC_NVRAM_GET_OFFSET _IOWR('p', 0x42, int) /* Get NVRAM partition offset */
+#define IOC_NVRAM_SYNC _IO('p', 0x43) /* Sync NVRAM image */
-#endif /* _PPC64_NVRAM_H */
+#endif /* _ASM_POWERPC_NVRAM_H */