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Diffstat (limited to 'arch/m68k/include/asm/io_mm.h')
-rw-r--r-- | arch/m68k/include/asm/io_mm.h | 406 |
1 files changed, 406 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/io_mm.h b/arch/m68k/include/asm/io_mm.h new file mode 100644 index 0000000000..6a0abd4846 --- /dev/null +++ b/arch/m68k/include/asm/io_mm.h @@ -0,0 +1,406 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * linux/include/asm-m68k/io.h + * + * 4/1/00 RZ: - rewritten to avoid clashes between ISA/PCI and other + * IO access + * - added Q40 support + * - added skeleton for GG-II and Amiga PCMCIA + * 2/3/01 RZ: - moved a few more defs into raw_io.h + * + * inX/outX should not be used by any driver unless it does + * ISA access. Other drivers should use function defined in raw_io.h + * or define its own macros on top of these. + * + * inX(),outX() are for ISA I/O + * isa_readX(),isa_writeX() are for ISA memory + */ + +#ifndef _M68K_IO_MM_H +#define _M68K_IO_MM_H + +#ifdef __KERNEL__ + +#include <linux/compiler.h> +#include <asm/raw_io.h> +#include <asm/virtconvert.h> +#include <asm/kmap.h> + +#ifdef CONFIG_ATARI +#define atari_readb raw_inb +#define atari_writeb raw_outb + +#define atari_inb_p raw_inb +#define atari_outb_p raw_outb +#endif + + +/* + * IO/MEM definitions for various ISA bridges + */ + + +#ifdef CONFIG_Q40 + +#define q40_isa_io_base 0xff400000 +#define q40_isa_mem_base 0xff800000 + +#define Q40_ISA_IO_B(ioaddr) (q40_isa_io_base+1+4*((unsigned long)(ioaddr))) +#define Q40_ISA_IO_W(ioaddr) (q40_isa_io_base+ 4*((unsigned long)(ioaddr))) +#define Q40_ISA_MEM_B(madr) (q40_isa_mem_base+1+4*((unsigned long)(madr))) +#define Q40_ISA_MEM_W(madr) (q40_isa_mem_base+ 4*((unsigned long)(madr))) + +#define MULTI_ISA 0 +#endif /* Q40 */ + +#ifdef CONFIG_AMIGA_PCMCIA +#include <asm/amigayle.h> + +#define AG_ISA_IO_B(ioaddr) ( GAYLE_IO+(ioaddr)+(((ioaddr)&1)*GAYLE_ODD) ) +#define AG_ISA_IO_W(ioaddr) ( GAYLE_IO+(ioaddr) ) + +#ifndef MULTI_ISA +#define MULTI_ISA 0 +#else +#undef MULTI_ISA +#define MULTI_ISA 1 +#endif +#endif /* AMIGA_PCMCIA */ + +#ifdef CONFIG_ATARI_ROM_ISA + +#define enec_isa_read_base 0xfffa0000 +#define enec_isa_write_base 0xfffb0000 + +#define ENEC_ISA_IO_B(ioaddr) (enec_isa_read_base+((((unsigned long)(ioaddr))&0x7F)<<9)) +#define ENEC_ISA_IO_W(ioaddr) (enec_isa_read_base+((((unsigned long)(ioaddr))&0x7F)<<9)) +#define ENEC_ISA_MEM_B(madr) (enec_isa_read_base+((((unsigned long)(madr))&0x7F)<<9)) +#define ENEC_ISA_MEM_W(madr) (enec_isa_read_base+((((unsigned long)(madr))&0x7F)<<9)) + +#ifndef MULTI_ISA +#define MULTI_ISA 0 +#else +#undef MULTI_ISA +#define MULTI_ISA 1 +#endif +#endif /* ATARI_ROM_ISA */ + + +#if defined(CONFIG_ISA) || defined(CONFIG_ATARI_ROM_ISA) + +#if MULTI_ISA == 0 +#undef MULTI_ISA +#endif + +#define ISA_TYPE_Q40 (1) +#define ISA_TYPE_AG (2) +#define ISA_TYPE_ENEC (3) + +#if defined(CONFIG_Q40) && !defined(MULTI_ISA) +#define ISA_TYPE ISA_TYPE_Q40 +#define ISA_SEX 0 +#endif +#if defined(CONFIG_AMIGA_PCMCIA) && !defined(MULTI_ISA) +#define ISA_TYPE ISA_TYPE_AG +#define ISA_SEX 1 +#endif +#if defined(CONFIG_ATARI_ROM_ISA) && !defined(MULTI_ISA) +#define ISA_TYPE ISA_TYPE_ENEC +#define ISA_SEX 0 +#endif + +#ifdef MULTI_ISA +extern int isa_type; +extern int isa_sex; + +#define ISA_TYPE isa_type +#define ISA_SEX isa_sex +#endif + +/* + * define inline addr translation functions. Normally only one variant will + * be compiled in so the case statement will be optimised away + */ + +static inline u8 __iomem *isa_itb(unsigned long addr) +{ + switch(ISA_TYPE) + { +#ifdef CONFIG_Q40 + case ISA_TYPE_Q40: return (u8 __iomem *)Q40_ISA_IO_B(addr); +#endif +#ifdef CONFIG_AMIGA_PCMCIA + case ISA_TYPE_AG: return (u8 __iomem *)AG_ISA_IO_B(addr); +#endif +#ifdef CONFIG_ATARI_ROM_ISA + case ISA_TYPE_ENEC: return (u8 __iomem *)ENEC_ISA_IO_B(addr); +#endif + default: return NULL; /* avoid warnings, just in case */ + } +} +static inline u16 __iomem *isa_itw(unsigned long addr) +{ + switch(ISA_TYPE) + { +#ifdef CONFIG_Q40 + case ISA_TYPE_Q40: return (u16 __iomem *)Q40_ISA_IO_W(addr); +#endif +#ifdef CONFIG_AMIGA_PCMCIA + case ISA_TYPE_AG: return (u16 __iomem *)AG_ISA_IO_W(addr); +#endif +#ifdef CONFIG_ATARI_ROM_ISA + case ISA_TYPE_ENEC: return (u16 __iomem *)ENEC_ISA_IO_W(addr); +#endif + default: return NULL; /* avoid warnings, just in case */ + } +} +static inline u32 __iomem *isa_itl(unsigned long addr) +{ + switch(ISA_TYPE) + { +#ifdef CONFIG_AMIGA_PCMCIA + case ISA_TYPE_AG: return (u32 __iomem *)AG_ISA_IO_W(addr); +#endif + default: return 0; /* avoid warnings, just in case */ + } +} +static inline u8 __iomem *isa_mtb(unsigned long addr) +{ + switch(ISA_TYPE) + { +#ifdef CONFIG_Q40 + case ISA_TYPE_Q40: return (u8 __iomem *)Q40_ISA_MEM_B(addr); +#endif +#ifdef CONFIG_AMIGA_PCMCIA + case ISA_TYPE_AG: return (u8 __iomem *)addr; +#endif +#ifdef CONFIG_ATARI_ROM_ISA + case ISA_TYPE_ENEC: return (u8 __iomem *)ENEC_ISA_MEM_B(addr); +#endif + default: return NULL; /* avoid warnings, just in case */ + } +} +static inline u16 __iomem *isa_mtw(unsigned long addr) +{ + switch(ISA_TYPE) + { +#ifdef CONFIG_Q40 + case ISA_TYPE_Q40: return (u16 __iomem *)Q40_ISA_MEM_W(addr); +#endif +#ifdef CONFIG_AMIGA_PCMCIA + case ISA_TYPE_AG: return (u16 __iomem *)addr; +#endif +#ifdef CONFIG_ATARI_ROM_ISA + case ISA_TYPE_ENEC: return (u16 __iomem *)ENEC_ISA_MEM_W(addr); +#endif + default: return NULL; /* avoid warnings, just in case */ + } +} + + +#define isa_inb(port) in_8(isa_itb(port)) +#define isa_inw(port) (ISA_SEX ? in_be16(isa_itw(port)) : in_le16(isa_itw(port))) +#define isa_inl(port) (ISA_SEX ? in_be32(isa_itl(port)) : in_le32(isa_itl(port))) +#define isa_outb(val,port) out_8(isa_itb(port),(val)) +#define isa_outw(val,port) (ISA_SEX ? out_be16(isa_itw(port),(val)) : out_le16(isa_itw(port),(val))) +#define isa_outl(val,port) (ISA_SEX ? out_be32(isa_itl(port),(val)) : out_le32(isa_itl(port),(val))) + +#define isa_readb(p) in_8(isa_mtb((unsigned long)(p))) +#define isa_readw(p) \ + (ISA_SEX ? in_be16(isa_mtw((unsigned long)(p))) \ + : in_le16(isa_mtw((unsigned long)(p)))) +#define isa_writeb(val,p) out_8(isa_mtb((unsigned long)(p)),(val)) +#define isa_writew(val,p) \ + (ISA_SEX ? out_be16(isa_mtw((unsigned long)(p)),(val)) \ + : out_le16(isa_mtw((unsigned long)(p)),(val))) + +#ifdef CONFIG_ATARI_ROM_ISA +#define isa_rom_inb(port) rom_in_8(isa_itb(port)) +#define isa_rom_inw(port) \ + (ISA_SEX ? rom_in_be16(isa_itw(port)) \ + : rom_in_le16(isa_itw(port))) + +#define isa_rom_outb(val, port) rom_out_8(isa_itb(port), (val)) +#define isa_rom_outw(val, port) \ + (ISA_SEX ? rom_out_be16(isa_itw(port), (val)) \ + : rom_out_le16(isa_itw(port), (val))) + +#define isa_rom_readb(p) rom_in_8(isa_mtb((unsigned long)(p))) +#define isa_rom_readw(p) \ + (ISA_SEX ? rom_in_be16(isa_mtw((unsigned long)(p))) \ + : rom_in_le16(isa_mtw((unsigned long)(p)))) +#define isa_rom_readw_swap(p) \ + (ISA_SEX ? rom_in_le16(isa_mtw((unsigned long)(p))) \ + : rom_in_be16(isa_mtw((unsigned long)(p)))) +#define isa_rom_readw_raw(p) rom_in_be16(isa_mtw((unsigned long)(p))) + +#define isa_rom_writeb(val, p) rom_out_8(isa_mtb((unsigned long)(p)), (val)) +#define isa_rom_writew(val, p) \ + (ISA_SEX ? rom_out_be16(isa_mtw((unsigned long)(p)), (val)) \ + : rom_out_le16(isa_mtw((unsigned long)(p)), (val))) +#define isa_rom_writew_swap(val, p) \ + (ISA_SEX ? rom_out_le16(isa_mtw((unsigned long)(p)), (val)) \ + : rom_out_be16(isa_mtw((unsigned long)(p)), (val))) +#define isa_rom_writew_raw(val, p) rom_out_be16(isa_mtw((unsigned long)(p)), (val)) +#endif /* CONFIG_ATARI_ROM_ISA */ + +static inline void isa_delay(void) +{ + switch(ISA_TYPE) + { +#ifdef CONFIG_Q40 + case ISA_TYPE_Q40: isa_outb(0,0x80); break; +#endif +#ifdef CONFIG_AMIGA_PCMCIA + case ISA_TYPE_AG: break; +#endif +#ifdef CONFIG_ATARI_ROM_ISA + case ISA_TYPE_ENEC: break; +#endif + default: break; /* avoid warnings */ + } +} + +#define isa_inb_p(p) ({u8 v=isa_inb(p);isa_delay();v;}) +#define isa_outb_p(v,p) ({isa_outb((v),(p));isa_delay();}) +#define isa_inw_p(p) ({u16 v=isa_inw(p);isa_delay();v;}) +#define isa_outw_p(v,p) ({isa_outw((v),(p));isa_delay();}) +#define isa_inl_p(p) ({u32 v=isa_inl(p);isa_delay();v;}) +#define isa_outl_p(v,p) ({isa_outl((v),(p));isa_delay();}) + +#define isa_insb(port, buf, nr) raw_insb(isa_itb(port), (u8 *)(buf), (nr)) +#define isa_outsb(port, buf, nr) raw_outsb(isa_itb(port), (u8 *)(buf), (nr)) + +#define isa_insw(port, buf, nr) \ + (ISA_SEX ? raw_insw(isa_itw(port), (u16 *)(buf), (nr)) : \ + raw_insw_swapw(isa_itw(port), (u16 *)(buf), (nr))) + +#define isa_outsw(port, buf, nr) \ + (ISA_SEX ? raw_outsw(isa_itw(port), (u16 *)(buf), (nr)) : \ + raw_outsw_swapw(isa_itw(port), (u16 *)(buf), (nr))) + +#define isa_insl(port, buf, nr) \ + (ISA_SEX ? raw_insl(isa_itl(port), (u32 *)(buf), (nr)) : \ + raw_insw_swapw(isa_itw(port), (u16 *)(buf), (nr)<<1)) + +#define isa_outsl(port, buf, nr) \ + (ISA_SEX ? raw_outsl(isa_itl(port), (u32 *)(buf), (nr)) : \ + raw_outsw_swapw(isa_itw(port), (u16 *)(buf), (nr)<<1)) + + +#ifdef CONFIG_ATARI_ROM_ISA +#define isa_rom_inb_p(p) ({ u8 _v = isa_rom_inb(p); isa_delay(); _v; }) +#define isa_rom_inw_p(p) ({ u16 _v = isa_rom_inw(p); isa_delay(); _v; }) +#define isa_rom_outb_p(v, p) ({ isa_rom_outb((v), (p)); isa_delay(); }) +#define isa_rom_outw_p(v, p) ({ isa_rom_outw((v), (p)); isa_delay(); }) + +#define isa_rom_insb(port, buf, nr) raw_rom_insb(isa_itb(port), (u8 *)(buf), (nr)) + +#define isa_rom_insw(port, buf, nr) \ + (ISA_SEX ? raw_rom_insw(isa_itw(port), (u16 *)(buf), (nr)) : \ + raw_rom_insw_swapw(isa_itw(port), (u16 *)(buf), (nr))) + +#define isa_rom_outsb(port, buf, nr) raw_rom_outsb(isa_itb(port), (u8 *)(buf), (nr)) + +#define isa_rom_outsw(port, buf, nr) \ + (ISA_SEX ? raw_rom_outsw(isa_itw(port), (u16 *)(buf), (nr)) : \ + raw_rom_outsw_swapw(isa_itw(port), (u16 *)(buf), (nr))) +#endif /* CONFIG_ATARI_ROM_ISA */ + +#endif /* CONFIG_ISA || CONFIG_ATARI_ROM_ISA */ + + +#if defined(CONFIG_ISA) && !defined(CONFIG_ATARI_ROM_ISA) +#define inb isa_inb +#define inb_p isa_inb_p +#define outb isa_outb +#define outb_p isa_outb_p +#define inw isa_inw +#define inw_p isa_inw_p +#define outw isa_outw +#define outw_p isa_outw_p +#define inl isa_inl +#define inl_p isa_inl_p +#define outl isa_outl +#define outl_p isa_outl_p +#define insb isa_insb +#define insw isa_insw +#define insl isa_insl +#define outsb isa_outsb +#define outsw isa_outsw +#define outsl isa_outsl +#define readb isa_readb +#define readw isa_readw +#define writeb isa_writeb +#define writew isa_writew +#endif /* CONFIG_ISA && !CONFIG_ATARI_ROM_ISA */ + +#ifdef CONFIG_ATARI_ROM_ISA +/* + * kernel with both ROM port ISA and IDE compiled in, those have + * conflicting defs for in/out. Simply consider port < 1024 + * ROM port ISA and everything else regular ISA for IDE. read,write defined + * below. + */ +#define inb(port) ((port) < 1024 ? isa_rom_inb(port) : in_8(port)) +#define inb_p(port) ((port) < 1024 ? isa_rom_inb_p(port) : in_8(port)) +#define inw(port) ((port) < 1024 ? isa_rom_inw(port) : in_le16(port)) +#define inw_p(port) ((port) < 1024 ? isa_rom_inw_p(port) : in_le16(port)) +#define inl isa_inl +#define inl_p isa_inl_p + +#define outb(val, port) ((port) < 1024 ? isa_rom_outb((val), (port)) : out_8((port), (val))) +#define outb_p(val, port) ((port) < 1024 ? isa_rom_outb_p((val), (port)) : out_8((port), (val))) +#define outw(val, port) ((port) < 1024 ? isa_rom_outw((val), (port)) : out_le16((port), (val))) +#define outw_p(val, port) ((port) < 1024 ? isa_rom_outw_p((val), (port)) : out_le16((port), (val))) +#define outl isa_outl +#define outl_p isa_outl_p + +#define insb(port, buf, nr) ((port) < 1024 ? isa_rom_insb((port), (buf), (nr)) : isa_insb((port), (buf), (nr))) +#define insw(port, buf, nr) ((port) < 1024 ? isa_rom_insw((port), (buf), (nr)) : isa_insw((port), (buf), (nr))) +#define insl isa_insl +#define outsb(port, buf, nr) ((port) < 1024 ? isa_rom_outsb((port), (buf), (nr)) : isa_outsb((port), (buf), (nr))) +#define outsw(port, buf, nr) ((port) < 1024 ? isa_rom_outsw((port), (buf), (nr)) : isa_outsw((port), (buf), (nr))) +#define outsl isa_outsl + +#define readb(addr) in_8(addr) +#define writeb(val, addr) out_8((addr), (val)) +#define readw(addr) in_le16(addr) +#define writew(val, addr) out_le16((addr), (val)) +#endif /* CONFIG_ATARI_ROM_ISA */ + +#define readl(addr) in_le32(addr) +#define writel(val,addr) out_le32((addr),(val)) + +#define readsb(port, buf, nr) raw_insb((port), (u8 *)(buf), (nr)) +#define readsw(port, buf, nr) raw_insw((port), (u16 *)(buf), (nr)) +#define readsl(port, buf, nr) raw_insl((port), (u32 *)(buf), (nr)) +#define writesb(port, buf, nr) raw_outsb((port), (u8 *)(buf), (nr)) +#define writesw(port, buf, nr) raw_outsw((port), (u16 *)(buf), (nr)) +#define writesl(port, buf, nr) raw_outsl((port), (u32 *)(buf), (nr)) + +#ifndef CONFIG_SUN3 +#define IO_SPACE_LIMIT 0xffff +#else +#define IO_SPACE_LIMIT 0x0fffffff +#endif + +#endif /* __KERNEL__ */ + +#define __ARCH_HAS_NO_PAGE_ZERO_MAPPED 1 + +/* + * Convert a physical pointer to a virtual kernel pointer for /dev/mem + * access + */ +#define xlate_dev_mem_ptr(p) __va(p) + +#define readb_relaxed(addr) readb(addr) +#define readw_relaxed(addr) readw(addr) +#define readl_relaxed(addr) readl(addr) + +#define writeb_relaxed(b, addr) writeb(b, addr) +#define writew_relaxed(b, addr) writew(b, addr) +#define writel_relaxed(b, addr) writel(b, addr) + +#endif /* _M68K_IO_MM_H */ |