patch-2.3.99-pre7 linux/include/asm-ppc/nvram.h

• Lines: 31
• Date: Tue May 2 13:05:40 2000
• Orig file: v2.3.99-pre6/linux/include/asm-ppc/nvram.h
• Orig date: Sat Aug 16 09:51:09 1997

diff -u --recursive --new-file v2.3.99-pre6/linux/include/asm-ppc/nvram.h linux/include/asm-ppc/nvram.h
@@ -30,4 +30,30 @@
 #define BIN_TO_BCD(val) ((val)=(((val)/10)<<4) + (val)%10)
 #endif
 
+/* PowerMac specific nvram stuffs */
+
+enum {
+	pmac_nvram_OF,		/* Open Firmware partition */
+	pmac_nvram_XPRAM,	/* MacOS XPRAM partition */
+	pmac_nvram_NR		/* MacOS Name Registry partition */
+};
+
+/* Return partition offset in nvram */
+extern int	pmac_get_partition(int partition);
+
+/* Direct access to XPRAM */
+extern u8	pmac_xpram_read(int xpaddr);
+extern void	pmac_xpram_write(int xpaddr, u8 data);
+
+/* Some offsets in XPRAM */
+#define PMAC_XPRAM_MACHINE_LOC	0xe4
+#define PMAC_XPRAM_SOUND_VOLUME	0x08
+
+/* Machine location structure in XPRAM */
+struct pmac_machine_location {
+	u32	latitude;	/* 2+30 bit Fractional number */
+	u32	longitude;	/* 2+30 bit Fractional number */
+	u32	delta;		/* mix of GMT delta and DLS */
+};
+
 #endif