powerpc: Move a bunch of ppc64 headers to include/asm-powerpc

... and also delete some that are no longer used because we already
had an include/asm-powerpc version of the header.

Signed-off-by: Paul Mackerras <paulus@samba.org>

include/asm-ppc64/delay.h → include/asm-powerpc/delay.h

@@ -1,5 +1,5 @@
-#ifndef _PPC64_DELAY_H
-#define _PPC64_DELAY_H
+#ifndef _ASM_POWERPC_DELAY_H
+#define _ASM_POWERPC_DELAY_H
 
 /*
  * Copyright 1996, Paul Mackerras.
@@ -15,10 +15,17 @@
 
 extern unsigned long tb_ticks_per_usec;
 
-/* define these here to prevent circular dependencies */ 
+#ifdef CONFIG_PPC64
+/* define these here to prevent circular dependencies */
+/* these instructions control the thread priority on multi-threaded cpus */
 #define __HMT_low()	asm volatile("or 1,1,1")
 #define __HMT_medium()	asm volatile("or 2,2,2")
-#define __barrier()	asm volatile("":::"memory")
+#else
+#define __HMT_low()
+#define __HMT_medium()
+#endif
+
+#define __barrier()	asm volatile("" ::: "memory")
 
 static inline unsigned long __get_tb(void)
 {
@@ -32,7 +39,7 @@ static inline void __delay(unsigned long loops)
 {
 	unsigned long start = __get_tb();
 
-	while((__get_tb()-start) < loops)
+	while((__get_tb() - start) < loops)
 		__HMT_low();
 	__HMT_medium();
 	__barrier();
@@ -45,4 +52,4 @@ static inline void udelay(unsigned long usecs)
 	__delay(loops);
 }
 
-#endif /* _PPC64_DELAY_H */
+#endif /* _ASM_POWERPC_DELAY_H */

include/asm-ppc64/floppy.h → include/asm-powerpc/floppy.h

@@ -7,22 +7,22 @@
  *
  * Copyright (C) 1995
  */
-#ifndef __ASM_PPC64_FLOPPY_H
-#define __ASM_PPC64_FLOPPY_H
+#ifndef __ASM_POWERPC_FLOPPY_H
+#define __ASM_POWERPC_FLOPPY_H
 
 #include <linux/config.h>
 #include <asm/machdep.h>
 
-#define fd_inb(port)			inb_p(port)
-#define fd_outb(value,port)		outb_p(value,port)
+#define fd_inb(port)		inb_p(port)
+#define fd_outb(value,port)	outb_p(value,port)
 
 #define fd_enable_dma()         enable_dma(FLOPPY_DMA)
 #define fd_disable_dma()        disable_dma(FLOPPY_DMA)
-#define fd_request_dma()        request_dma(FLOPPY_DMA,"floppy")
+#define fd_request_dma()        request_dma(FLOPPY_DMA, "floppy")
 #define fd_free_dma()           free_dma(FLOPPY_DMA)
 #define fd_clear_dma_ff()       clear_dma_ff(FLOPPY_DMA)
-#define fd_set_dma_mode(mode)   set_dma_mode(FLOPPY_DMA,mode)
-#define fd_set_dma_count(count) set_dma_count(FLOPPY_DMA,count)
+#define fd_set_dma_mode(mode)   set_dma_mode(FLOPPY_DMA, mode)
+#define fd_set_dma_count(count) set_dma_count(FLOPPY_DMA, count)
 #define fd_enable_irq()         enable_irq(FLOPPY_IRQ)
 #define fd_disable_irq()        disable_irq(FLOPPY_IRQ)
 #define fd_cacheflush(addr,size) /* nothing */
@@ -35,10 +35,10 @@
 
 #include <linux/pci.h>
 
-#define fd_dma_setup(addr,size,mode,io) ppc64_fd_dma_setup(addr,size,mode,io)
+#define fd_dma_setup(addr,size,mode,io) powerpc_fd_dma_setup(addr,size,mode,io)
 
-static __inline__ int 
-ppc64_fd_dma_setup(char *addr, unsigned long size, int mode, int io)
+static __inline__ int powerpc_fd_dma_setup(char *addr, unsigned long size,
+					   int mode, int io)
 {
 	static unsigned long prev_size;
 	static dma_addr_t bus_addr = 0;
@@ -55,9 +55,8 @@ ppc64_fd_dma_setup(char *addr, unsigned long size, int mode, int io)
 		bus_addr = 0;
 	}
 
-	if (!bus_addr)	/* need to map it */ {
+	if (!bus_addr)	/* need to map it */
 		bus_addr = pci_map_single(NULL, addr, size, dir);
-	}
 
 	/* remember this one as prev */
 	prev_addr = addr;
@@ -103,4 +102,4 @@ static int FDC2 = -1;
 
 #define EXTRA_FLOPPY_PARAMS
 
-#endif /* __ASM_PPC64_FLOPPY_H */
+#endif /* __ASM_POWERPC_FLOPPY_H */

include/asm-ppc64/nvram.h → include/asm-powerpc/nvram.h

@@ -1,15 +1,14 @@
 /*
- * 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
  * as published by the Free Software Foundation; either version
  * 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) */
@@ -88,7 +87,11 @@ extern u8	pmac_xpram_read(int xpaddr);
 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
@@ -112,5 +115,6 @@ struct pmac_machine_location {
 				_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 */

include/asm-ppc64/serial.h → include/asm-powerpc/serial.h

@@ -1,21 +1,16 @@
 /*
- * include/asm-ppc64/serial.h
- */
-#ifndef _PPC64_SERIAL_H
-#define _PPC64_SERIAL_H
-
-/*
- * This assumes you have a 1.8432 MHz clock for your UART.
- *
- * It'd be nice if someone built a serial card with a 24.576 MHz
- * clock, since the 16550A is capable of handling a top speed of 1.5
- * megabits/second; but this requires the faster clock.
- *
  * 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.
  */
+#ifndef _ASM_POWERPC_SERIAL_H
+#define _ASM_POWERPC_SERIAL_H
+
+/*
+ * Serial ports are not listed here, because they are discovered
+ * through the device tree.
+ */
 
 /* Default baud base if not found in device-tree */
 #define BASE_BAUD ( 1843200 / 16 )