summaryrefslogtreecommitdiff
path: root/include/asm-ppc/io.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-ppc/io.h')
-rw-r--r--include/asm-ppc/io.h502
1 files changed, 0 insertions, 502 deletions
diff --git a/include/asm-ppc/io.h b/include/asm-ppc/io.h
deleted file mode 100644
index a0d409a5d80f..000000000000
--- a/include/asm-ppc/io.h
+++ /dev/null
@@ -1,502 +0,0 @@
-#ifdef __KERNEL__
-#ifndef _PPC_IO_H
-#define _PPC_IO_H
-
-#include <linux/string.h>
-#include <linux/types.h>
-
-#include <asm/page.h>
-#include <asm/byteorder.h>
-#include <asm/synch.h>
-#include <asm/mmu.h>
-
-#define SIO_CONFIG_RA 0x398
-#define SIO_CONFIG_RD 0x399
-
-#define SLOW_DOWN_IO
-
-#define PMAC_ISA_MEM_BASE 0
-#define PMAC_PCI_DRAM_OFFSET 0
-#define CHRP_ISA_IO_BASE 0xf8000000
-#define CHRP_ISA_MEM_BASE 0xf7000000
-#define CHRP_PCI_DRAM_OFFSET 0
-#define PREP_ISA_IO_BASE 0x80000000
-#define PREP_ISA_MEM_BASE 0xc0000000
-#define PREP_PCI_DRAM_OFFSET 0x80000000
-
-#if defined(CONFIG_4xx)
-#include <asm/ibm4xx.h>
-#elif defined(CONFIG_8xx)
-#include <asm/mpc8xx.h>
-#elif defined(CONFIG_8260)
-#include <asm/mpc8260.h>
-#elif !defined(CONFIG_PCI)
-#define _IO_BASE 0
-#define _ISA_MEM_BASE 0
-#define PCI_DRAM_OFFSET 0
-#else /* Everyone else */
-#define _IO_BASE isa_io_base
-#define _ISA_MEM_BASE isa_mem_base
-#define PCI_DRAM_OFFSET pci_dram_offset
-#endif /* Platform-dependent I/O */
-
-#define ___IO_BASE ((void __iomem *)_IO_BASE)
-extern unsigned long isa_io_base;
-extern unsigned long isa_mem_base;
-extern unsigned long pci_dram_offset;
-
-/*
- * 8, 16 and 32 bit, big and little endian I/O operations, with barrier.
- *
- * Read operations have additional twi & isync to make sure the read
- * is actually performed (i.e. the data has come back) before we start
- * executing any following instructions.
- */
-extern inline int in_8(const volatile unsigned char __iomem *addr)
-{
- int ret;
-
- __asm__ __volatile__(
- "sync; lbz%U1%X1 %0,%1;\n"
- "twi 0,%0,0;\n"
- "isync" : "=r" (ret) : "m" (*addr));
- return ret;
-}
-
-extern inline void out_8(volatile unsigned char __iomem *addr, int val)
-{
- __asm__ __volatile__("stb%U0%X0 %1,%0; eieio" : "=m" (*addr) : "r" (val));
-}
-
-extern inline int in_le16(const volatile unsigned short __iomem *addr)
-{
- int ret;
-
- __asm__ __volatile__("sync; lhbrx %0,0,%1;\n"
- "twi 0,%0,0;\n"
- "isync" : "=r" (ret) :
- "r" (addr), "m" (*addr));
- return ret;
-}
-
-extern inline int in_be16(const volatile unsigned short __iomem *addr)
-{
- int ret;
-
- __asm__ __volatile__("sync; lhz%U1%X1 %0,%1;\n"
- "twi 0,%0,0;\n"
- "isync" : "=r" (ret) : "m" (*addr));
- return ret;
-}
-
-extern inline void out_le16(volatile unsigned short __iomem *addr, int val)
-{
- __asm__ __volatile__("sync; sthbrx %1,0,%2" : "=m" (*addr) :
- "r" (val), "r" (addr));
-}
-
-extern inline void out_be16(volatile unsigned short __iomem *addr, int val)
-{
- __asm__ __volatile__("sync; sth%U0%X0 %1,%0" : "=m" (*addr) : "r" (val));
-}
-
-extern inline unsigned in_le32(const volatile unsigned __iomem *addr)
-{
- unsigned ret;
-
- __asm__ __volatile__("sync; lwbrx %0,0,%1;\n"
- "twi 0,%0,0;\n"
- "isync" : "=r" (ret) :
- "r" (addr), "m" (*addr));
- return ret;
-}
-
-extern inline unsigned in_be32(const volatile unsigned __iomem *addr)
-{
- unsigned ret;
-
- __asm__ __volatile__("sync; lwz%U1%X1 %0,%1;\n"
- "twi 0,%0,0;\n"
- "isync" : "=r" (ret) : "m" (*addr));
- return ret;
-}
-
-extern inline void out_le32(volatile unsigned __iomem *addr, int val)
-{
- __asm__ __volatile__("sync; stwbrx %1,0,%2" : "=m" (*addr) :
- "r" (val), "r" (addr));
-}
-
-extern inline void out_be32(volatile unsigned __iomem *addr, int val)
-{
- __asm__ __volatile__("sync; stw%U0%X0 %1,%0" : "=m" (*addr) : "r" (val));
-}
-#if defined (CONFIG_8260_PCI9)
-#define readb(addr) in_8((volatile u8 *)(addr))
-#define writeb(b,addr) out_8((volatile u8 *)(addr), (b))
-#else
-static inline __u8 readb(const volatile void __iomem *addr)
-{
- return in_8(addr);
-}
-static inline void writeb(__u8 b, volatile void __iomem *addr)
-{
- out_8(addr, b);
-}
-#endif
-
-#if defined (CONFIG_8260_PCI9)
-/* Use macros if PCI9 workaround enabled */
-#define readw(addr) in_le16((volatile u16 *)(addr))
-#define readl(addr) in_le32((volatile u32 *)(addr))
-#define writew(b,addr) out_le16((volatile u16 *)(addr),(b))
-#define writel(b,addr) out_le32((volatile u32 *)(addr),(b))
-#else
-static inline __u16 readw(const volatile void __iomem *addr)
-{
- return in_le16(addr);
-}
-static inline __u32 readl(const volatile void __iomem *addr)
-{
- return in_le32(addr);
-}
-static inline void writew(__u16 b, volatile void __iomem *addr)
-{
- out_le16(addr, b);
-}
-static inline void writel(__u32 b, volatile void __iomem *addr)
-{
- out_le32(addr, b);
-}
-#endif /* CONFIG_8260_PCI9 */
-
-#define readb_relaxed(addr) readb(addr)
-#define readw_relaxed(addr) readw(addr)
-#define readl_relaxed(addr) readl(addr)
-
-static inline __u8 __raw_readb(const volatile void __iomem *addr)
-{
- return *(__force volatile __u8 *)(addr);
-}
-static inline __u16 __raw_readw(const volatile void __iomem *addr)
-{
- return *(__force volatile __u16 *)(addr);
-}
-static inline __u32 __raw_readl(const volatile void __iomem *addr)
-{
- return *(__force volatile __u32 *)(addr);
-}
-static inline void __raw_writeb(__u8 b, volatile void __iomem *addr)
-{
- *(__force volatile __u8 *)(addr) = b;
-}
-static inline void __raw_writew(__u16 b, volatile void __iomem *addr)
-{
- *(__force volatile __u16 *)(addr) = b;
-}
-static inline void __raw_writel(__u32 b, volatile void __iomem *addr)
-{
- *(__force volatile __u32 *)(addr) = b;
-}
-
-#define mmiowb()
-
-/*
- * The insw/outsw/insl/outsl macros don't do byte-swapping.
- * They are only used in practice for transferring buffers which
- * are arrays of bytes, and byte-swapping is not appropriate in
- * that case. - paulus
- */
-#define insb(port, buf, ns) _insb((port)+___IO_BASE, (buf), (ns))
-#define outsb(port, buf, ns) _outsb((port)+___IO_BASE, (buf), (ns))
-#define insw(port, buf, ns) _insw_ns((port)+___IO_BASE, (buf), (ns))
-#define outsw(port, buf, ns) _outsw_ns((port)+___IO_BASE, (buf), (ns))
-#define insl(port, buf, nl) _insl_ns((port)+___IO_BASE, (buf), (nl))
-#define outsl(port, buf, nl) _outsl_ns((port)+___IO_BASE, (buf), (nl))
-
-#define readsb(a, b, n) _insb((a), (b), (n))
-#define readsw(a, b, n) _insw_ns((a), (b), (n))
-#define readsl(a, b, n) _insl_ns((a), (b), (n))
-#define writesb(a, b, n) _outsb((a),(b),(n))
-#define writesw(a, b, n) _outsw_ns((a),(b),(n))
-#define writesl(a, b, n) _outsl_ns((a),(b),(n))
-
-
-/*
- * On powermacs and 8xx we will get a machine check exception
- * if we try to read data from a non-existent I/O port. Because
- * the machine check is an asynchronous exception, it isn't
- * well-defined which instruction SRR0 will point to when the
- * exception occurs.
- * With the sequence below (twi; isync; nop), we have found that
- * the machine check occurs on one of the three instructions on
- * all PPC implementations tested so far. The twi and isync are
- * needed on the 601 (in fact twi; sync works too), the isync and
- * nop are needed on 604[e|r], and any of twi, sync or isync will
- * work on 603[e], 750, 74xx.
- * The twi creates an explicit data dependency on the returned
- * value which seems to be needed to make the 601 wait for the
- * load to finish.
- */
-
-#define __do_in_asm(name, op) \
-extern __inline__ unsigned int name(unsigned int port) \
-{ \
- unsigned int x; \
- __asm__ __volatile__( \
- "sync\n" \
- "0:" op " %0,0,%1\n" \
- "1: twi 0,%0,0\n" \
- "2: isync\n" \
- "3: nop\n" \
- "4:\n" \
- ".section .fixup,\"ax\"\n" \
- "5: li %0,-1\n" \
- " b 4b\n" \
- ".previous\n" \
- ".section __ex_table,\"a\"\n" \
- " .align 2\n" \
- " .long 0b,5b\n" \
- " .long 1b,5b\n" \
- " .long 2b,5b\n" \
- " .long 3b,5b\n" \
- ".previous" \
- : "=&r" (x) \
- : "r" (port + ___IO_BASE)); \
- return x; \
-}
-
-#define __do_out_asm(name, op) \
-extern __inline__ void name(unsigned int val, unsigned int port) \
-{ \
- __asm__ __volatile__( \
- "sync\n" \
- "0:" op " %0,0,%1\n" \
- "1: sync\n" \
- "2:\n" \
- ".section __ex_table,\"a\"\n" \
- " .align 2\n" \
- " .long 0b,2b\n" \
- " .long 1b,2b\n" \
- ".previous" \
- : : "r" (val), "r" (port + ___IO_BASE)); \
-}
-
-__do_out_asm(outb, "stbx")
-#if defined (CONFIG_8260_PCI9)
-/* in asm cannot be defined if PCI9 workaround is used */
-#define inb(port) in_8((port)+___IO_BASE)
-#define inw(port) in_le16((port)+___IO_BASE)
-#define inl(port) in_le32((port)+___IO_BASE)
-__do_out_asm(outw, "sthbrx")
-__do_out_asm(outl, "stwbrx")
-#else
-__do_in_asm(inb, "lbzx")
-__do_in_asm(inw, "lhbrx")
-__do_in_asm(inl, "lwbrx")
-__do_out_asm(outw, "sthbrx")
-__do_out_asm(outl, "stwbrx")
-
-#endif
-
-#define inb_p(port) inb((port))
-#define outb_p(val, port) outb((val), (port))
-#define inw_p(port) inw((port))
-#define outw_p(val, port) outw((val), (port))
-#define inl_p(port) inl((port))
-#define outl_p(val, port) outl((val), (port))
-
-extern void _insb(const volatile u8 __iomem *addr, void *buf, long count);
-extern void _outsb(volatile u8 __iomem *addr,const void *buf,long count);
-extern void _insw_ns(const volatile u16 __iomem *addr, void *buf, long count);
-extern void _outsw_ns(volatile u16 __iomem *addr, const void *buf, long count);
-extern void _insl_ns(const volatile u32 __iomem *addr, void *buf, long count);
-extern void _outsl_ns(volatile u32 __iomem *addr, const void *buf, long count);
-
-
-#define IO_SPACE_LIMIT ~0
-
-#if defined (CONFIG_8260_PCI9)
-#define memset_io(a,b,c) memset((void *)(a),(b),(c))
-#define memcpy_fromio(a,b,c) memcpy((a),(void *)(b),(c))
-#define memcpy_toio(a,b,c) memcpy((void *)(a),(b),(c))
-#else
-static inline void memset_io(volatile void __iomem *addr, unsigned char val, int count)
-{
- memset((void __force *)addr, val, count);
-}
-static inline void memcpy_fromio(void *dst,const volatile void __iomem *src, int count)
-{
- memcpy(dst, (void __force *) src, count);
-}
-static inline void memcpy_toio(volatile void __iomem *dst, const void *src, int count)
-{
- memcpy((void __force *) dst, src, count);
-}
-#endif
-
-/*
- * Map in an area of physical address space, for accessing
- * I/O devices etc.
- */
-extern void __iomem *__ioremap(phys_addr_t address, unsigned long size,
- unsigned long flags);
-extern void __iomem *ioremap(phys_addr_t address, unsigned long size);
-#ifdef CONFIG_44x
-extern void __iomem *ioremap64(unsigned long long address, unsigned long size);
-#endif
-#define ioremap_nocache(addr, size) ioremap((addr), (size))
-extern void iounmap(volatile void __iomem *addr);
-extern unsigned long iopa(unsigned long addr);
-extern void io_block_mapping(unsigned long virt, phys_addr_t phys,
- unsigned int size, int flags);
-
-/*
- * The PCI bus is inherently Little-Endian. The PowerPC is being
- * run Big-Endian. Thus all values which cross the [PCI] barrier
- * must be endian-adjusted. Also, the local DRAM has a different
- * address from the PCI point of view, thus buffer addresses also
- * have to be modified [mapped] appropriately.
- */
-extern inline unsigned long virt_to_bus(volatile void * address)
-{
- if (address == (void *)0)
- return 0;
- return (unsigned long)address - KERNELBASE + PCI_DRAM_OFFSET;
-}
-
-extern inline void * bus_to_virt(unsigned long address)
-{
- if (address == 0)
- return NULL;
- return (void *)(address - PCI_DRAM_OFFSET + KERNELBASE);
-}
-
-/*
- * Change virtual addresses to physical addresses and vv, for
- * addresses in the area where the kernel has the RAM mapped.
- */
-extern inline unsigned long virt_to_phys(volatile void * address)
-{
- return (unsigned long) address - KERNELBASE;
-}
-
-extern inline void * phys_to_virt(unsigned long address)
-{
- return (void *) (address + KERNELBASE);
-}
-
-/*
- * Change "struct page" to physical address.
- */
-#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)
-#define page_to_bus(page) (page_to_phys(page) + PCI_DRAM_OFFSET)
-
-/* Enforce in-order execution of data I/O.
- * No distinction between read/write on PPC; use eieio for all three.
- */
-#define iobarrier_rw() eieio()
-#define iobarrier_r() eieio()
-#define iobarrier_w() eieio()
-
-/*
- * Here comes the ppc implementation of the IOMAP
- * interfaces.
- */
-static inline unsigned int ioread8(void __iomem *addr)
-{
- return readb(addr);
-}
-
-static inline unsigned int ioread16(void __iomem *addr)
-{
- return readw(addr);
-}
-
-static inline unsigned int ioread32(void __iomem *addr)
-{
- return readl(addr);
-}
-
-static inline void iowrite8(u8 val, void __iomem *addr)
-{
- writeb(val, addr);
-}
-
-static inline void iowrite16(u16 val, void __iomem *addr)
-{
- writew(val, addr);
-}
-
-static inline void iowrite32(u32 val, void __iomem *addr)
-{
- writel(val, addr);
-}
-
-static inline void ioread8_rep(void __iomem *addr, void *dst, unsigned long count)
-{
- _insb(addr, dst, count);
-}
-
-static inline void ioread16_rep(void __iomem *addr, void *dst, unsigned long count)
-{
- _insw_ns(addr, dst, count);
-}
-
-static inline void ioread32_rep(void __iomem *addr, void *dst, unsigned long count)
-{
- _insl_ns(addr, dst, count);
-}
-
-static inline void iowrite8_rep(void __iomem *addr, const void *src, unsigned long count)
-{
- _outsb(addr, src, count);
-}
-
-static inline void iowrite16_rep(void __iomem *addr, const void *src, unsigned long count)
-{
- _outsw_ns(addr, src, count);
-}
-
-static inline void iowrite32_rep(void __iomem *addr, const void *src, unsigned long count)
-{
- _outsl_ns(addr, src, count);
-}
-
-/* Create a virtual mapping cookie for an IO port range */
-extern void __iomem *ioport_map(unsigned long port, unsigned int nr);
-extern void ioport_unmap(void __iomem *);
-
-/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
-struct pci_dev;
-extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
-extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
-
-#endif /* _PPC_IO_H */
-
-#ifdef CONFIG_8260_PCI9
-#include <asm/mpc8260_pci9.h>
-#endif
-
-/*
- * Convert a physical pointer to a virtual kernel pointer for /dev/mem
- * access
- */
-#define xlate_dev_mem_ptr(p) __va(p)
-
-/*
- * Convert a virtual cached pointer to an uncached pointer
- */
-#define xlate_dev_kmem_ptr(p) p
-
-/* access ports */
-#define setbits32(_addr, _v) out_be32((_addr), in_be32(_addr) | (_v))
-#define clrbits32(_addr, _v) out_be32((_addr), in_be32(_addr) & ~(_v))
-
-#define setbits16(_addr, _v) out_be16((_addr), in_be16(_addr) | (_v))
-#define clrbits16(_addr, _v) out_be16((_addr), in_be16(_addr) & ~(_v))
-
-#define setbits8(_addr, _v) out_8((_addr), in_8(_addr) | (_v))
-#define clrbits8(_addr, _v) out_8((_addr), in_8(_addr) & ~(_v))
-
-#endif /* __KERNEL__ */