m68k/atari: ROM port ISA adapter support
Atari ROM port ISA adapter support for EtherNEC and NetUSBee adapters 16 bit access for ROM port adapters follows debugging and clarification by David Galvez <dgalvez75@gmail.com>. The NetUSBee ISP1160 USB chip uses these macros. Signed-off-by: Michael Schmitz <schmitz@debian.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
This commit is contained in:
Michael Schmitz
Geert Uytterhoeven
parent
feb20ec2bb
commit
84b16b7b0d
4 changed files with 253 additions and 6 deletions
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@ -45,6 +45,16 @@ config ISA
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(MCA) or VESA. ISA is an older system, now being displaced by PCI;
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newer boards don't support it. If you have ISA, say Y, otherwise N.
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config ATARI_ROM_ISA
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bool "Atari ROM port ISA adapter support"
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depends on ATARI
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help
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This option enables support for the ROM port ISA adapter used to
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operate ISA cards on Atari. Only 8 bit cards are supported, and
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no interrupt lines are connected.
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The only driver currently using this adapter is the EtherNEC
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driver for RTL8019AS based NE2000 compatible network cards.
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config GENERIC_ISA_DMA
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def_bool ISA
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@ -63,6 +63,23 @@
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#endif
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#endif /* AMIGA_PCMCIA */
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#ifdef CONFIG_ATARI_ROM_ISA
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#define enec_isa_read_base 0xfffa0000
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#define enec_isa_write_base 0xfffb0000
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#define ENEC_ISA_IO_B(ioaddr) (enec_isa_read_base+((((unsigned long)(ioaddr))&0x7F)<<9))
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#define ENEC_ISA_IO_W(ioaddr) (enec_isa_read_base+((((unsigned long)(ioaddr))&0x7F)<<9))
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#define ENEC_ISA_MEM_B(madr) (enec_isa_read_base+((((unsigned long)(madr))&0x7F)<<9))
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#define ENEC_ISA_MEM_W(madr) (enec_isa_read_base+((((unsigned long)(madr))&0x7F)<<9))
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#ifndef MULTI_ISA
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#define MULTI_ISA 0
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#else
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#undef MULTI_ISA
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#define MULTI_ISA 1
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#endif
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#endif /* ATARI_ROM_ISA */
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#if defined(CONFIG_PCI) && defined(CONFIG_COLDFIRE)
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@ -111,14 +128,15 @@ void mcf_pci_outsl(u32 addr, const u32 *buf, u32 len);
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#define readw(addr) in_le16(addr)
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#define writew(v, addr) out_le16((addr), (v))
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#elif defined(CONFIG_ISA)
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#elif defined(CONFIG_ISA) || defined(CONFIG_ATARI_ROM_ISA)
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#if MULTI_ISA == 0
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#undef MULTI_ISA
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#endif
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#define ISA_TYPE_Q40 (1)
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#define ISA_TYPE_AG (2)
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#define ISA_TYPE_Q40 (1)
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#define ISA_TYPE_AG (2)
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#define ISA_TYPE_ENEC (3)
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#if defined(CONFIG_Q40) && !defined(MULTI_ISA)
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#define ISA_TYPE ISA_TYPE_Q40
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@ -128,6 +146,10 @@ void mcf_pci_outsl(u32 addr, const u32 *buf, u32 len);
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#define ISA_TYPE ISA_TYPE_AG
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#define ISA_SEX 1
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#endif
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#if defined(CONFIG_ATARI_ROM_ISA) && !defined(MULTI_ISA)
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#define ISA_TYPE ISA_TYPE_ENEC
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#define ISA_SEX 0
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#endif
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#ifdef MULTI_ISA
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extern int isa_type;
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@ -151,6 +173,9 @@ static inline u8 __iomem *isa_itb(unsigned long addr)
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#endif
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#ifdef CONFIG_AMIGA_PCMCIA
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case ISA_TYPE_AG: return (u8 __iomem *)AG_ISA_IO_B(addr);
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#endif
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#ifdef CONFIG_ATARI_ROM_ISA
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case ISA_TYPE_ENEC: return (u8 __iomem *)ENEC_ISA_IO_B(addr);
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#endif
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default: return NULL; /* avoid warnings, just in case */
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}
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@ -164,6 +189,9 @@ static inline u16 __iomem *isa_itw(unsigned long addr)
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#endif
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#ifdef CONFIG_AMIGA_PCMCIA
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case ISA_TYPE_AG: return (u16 __iomem *)AG_ISA_IO_W(addr);
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#endif
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#ifdef CONFIG_ATARI_ROM_ISA
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case ISA_TYPE_ENEC: return (u16 __iomem *)ENEC_ISA_IO_W(addr);
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#endif
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default: return NULL; /* avoid warnings, just in case */
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}
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@ -187,6 +215,9 @@ static inline u8 __iomem *isa_mtb(unsigned long addr)
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#endif
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#ifdef CONFIG_AMIGA_PCMCIA
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case ISA_TYPE_AG: return (u8 __iomem *)addr;
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#endif
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#ifdef CONFIG_ATARI_ROM_ISA
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case ISA_TYPE_ENEC: return (u8 __iomem *)ENEC_ISA_MEM_B(addr);
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#endif
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default: return NULL; /* avoid warnings, just in case */
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}
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@ -200,6 +231,9 @@ static inline u16 __iomem *isa_mtw(unsigned long addr)
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#endif
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#ifdef CONFIG_AMIGA_PCMCIA
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case ISA_TYPE_AG: return (u16 __iomem *)addr;
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#endif
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#ifdef CONFIG_ATARI_ROM_ISA
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case ISA_TYPE_ENEC: return (u16 __iomem *)ENEC_ISA_MEM_W(addr);
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#endif
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default: return NULL; /* avoid warnings, just in case */
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}
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@ -222,6 +256,36 @@ static inline u16 __iomem *isa_mtw(unsigned long addr)
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(ISA_SEX ? out_be16(isa_mtw((unsigned long)(p)),(val)) \
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: out_le16(isa_mtw((unsigned long)(p)),(val)))
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#ifdef CONFIG_ATARI_ROM_ISA
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#define isa_rom_inb(port) rom_in_8(isa_itb(port))
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#define isa_rom_inw(port) \
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(ISA_SEX ? rom_in_be16(isa_itw(port)) \
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: rom_in_le16(isa_itw(port)))
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#define isa_rom_outb(val, port) rom_out_8(isa_itb(port), (val))
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#define isa_rom_outw(val, port) \
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(ISA_SEX ? rom_out_be16(isa_itw(port), (val)) \
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: rom_out_le16(isa_itw(port), (val)))
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#define isa_rom_readb(p) rom_in_8(isa_mtb((unsigned long)(p)))
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#define isa_rom_readw(p) \
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(ISA_SEX ? rom_in_be16(isa_mtw((unsigned long)(p))) \
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: rom_in_le16(isa_mtw((unsigned long)(p))))
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#define isa_rom_readw_swap(p) \
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(ISA_SEX ? rom_in_le16(isa_mtw((unsigned long)(p))) \
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: rom_in_be16(isa_mtw((unsigned long)(p))))
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#define isa_rom_readw_raw(p) rom_in_be16(isa_mtw((unsigned long)(p)))
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#define isa_rom_writeb(val, p) rom_out_8(isa_mtb((unsigned long)(p)), (val))
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#define isa_rom_writew(val, p) \
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(ISA_SEX ? rom_out_be16(isa_mtw((unsigned long)(p)), (val)) \
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: rom_out_le16(isa_mtw((unsigned long)(p)), (val)))
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#define isa_rom_writew_swap(val, p) \
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(ISA_SEX ? rom_out_le16(isa_mtw((unsigned long)(p)), (val)) \
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: rom_out_be16(isa_mtw((unsigned long)(p)), (val)))
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#define isa_rom_writew_raw(val, p) rom_out_be16(isa_mtw((unsigned long)(p)), (val))
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#endif /* CONFIG_ATARI_ROM_ISA */
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static inline void isa_delay(void)
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{
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switch(ISA_TYPE)
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@ -231,6 +295,9 @@ static inline void isa_delay(void)
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#endif
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#ifdef CONFIG_AMIGA_PCMCIA
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case ISA_TYPE_AG: break;
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#endif
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#ifdef CONFIG_ATARI_ROM_ISA
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case ISA_TYPE_ENEC: break;
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#endif
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default: break; /* avoid warnings */
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}
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@ -263,6 +330,29 @@ static inline void isa_delay(void)
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raw_outsw_swapw(isa_itw(port), (u16 *)(buf), (nr)<<1))
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#ifdef CONFIG_ATARI_ROM_ISA
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#define isa_rom_inb_p(p) ({ u8 _v = isa_rom_inb(p); isa_delay(); _v; })
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#define isa_rom_inw_p(p) ({ u16 _v = isa_rom_inw(p); isa_delay(); _v; })
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#define isa_rom_outb_p(v, p) ({ isa_rom_outb((v), (p)); isa_delay(); })
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#define isa_rom_outw_p(v, p) ({ isa_rom_outw((v), (p)); isa_delay(); })
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#define isa_rom_insb(port, buf, nr) raw_rom_insb(isa_itb(port), (u8 *)(buf), (nr))
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#define isa_rom_insw(port, buf, nr) \
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(ISA_SEX ? raw_rom_insw(isa_itw(port), (u16 *)(buf), (nr)) : \
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raw_rom_insw_swapw(isa_itw(port), (u16 *)(buf), (nr)))
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#define isa_rom_outsb(port, buf, nr) raw_rom_outsb(isa_itb(port), (u8 *)(buf), (nr))
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#define isa_rom_outsw(port, buf, nr) \
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(ISA_SEX ? raw_rom_outsw(isa_itw(port), (u16 *)(buf), (nr)) : \
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raw_rom_outsw_swapw(isa_itw(port), (u16 *)(buf), (nr)))
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#endif /* CONFIG_ATARI_ROM_ISA */
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#endif /* CONFIG_ISA || CONFIG_ATARI_ROM_ISA */
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#if defined(CONFIG_ISA) && !defined(CONFIG_ATARI_ROM_ISA)
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#define inb isa_inb
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#define inb_p isa_inb_p
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#define outb isa_outb
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@ -285,9 +375,43 @@ static inline void isa_delay(void)
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#define readw isa_readw
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#define writeb isa_writeb
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#define writew isa_writew
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#endif /* CONFIG_ISA && !CONFIG_ATARI_ROM_ISA */
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#else /* CONFIG_ISA */
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#ifdef CONFIG_ATARI_ROM_ISA
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/*
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* kernel with both ROM port ISA and IDE compiled in, those have
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* conflicting defs for in/out. Simply consider port < 1024
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* ROM port ISA and everything else regular ISA for IDE. read,write defined
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* below.
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*/
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#define inb(port) ((port) < 1024 ? isa_rom_inb(port) : in_8(port))
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#define inb_p(port) ((port) < 1024 ? isa_rom_inb_p(port) : in_8(port))
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#define inw(port) ((port) < 1024 ? isa_rom_inw(port) : in_le16(port))
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#define inw_p(port) ((port) < 1024 ? isa_rom_inw_p(port) : in_le16(port))
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#define inl isa_inl
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#define inl_p isa_inl_p
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#define outb(val, port) ((port) < 1024 ? isa_rom_outb((val), (port)) : out_8((port), (val)))
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#define outb_p(val, port) ((port) < 1024 ? isa_rom_outb_p((val), (port)) : out_8((port), (val)))
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#define outw(val, port) ((port) < 1024 ? isa_rom_outw((val), (port)) : out_le16((port), (val)))
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#define outw_p(val, port) ((port) < 1024 ? isa_rom_outw_p((val), (port)) : out_le16((port), (val)))
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#define outl isa_outl
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#define outl_p isa_outl_p
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#define insb(port, buf, nr) ((port) < 1024 ? isa_rom_insb((port), (buf), (nr)) : isa_insb((port), (buf), (nr)))
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#define insw(port, buf, nr) ((port) < 1024 ? isa_rom_insw((port), (buf), (nr)) : isa_insw((port), (buf), (nr)))
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#define insl isa_insl
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#define outsb(port, buf, nr) ((port) < 1024 ? isa_rom_outsb((port), (buf), (nr)) : isa_outsb((port), (buf), (nr)))
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#define outsw(port, buf, nr) ((port) < 1024 ? isa_rom_outsw((port), (buf), (nr)) : isa_outsw((port), (buf), (nr)))
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#define outsl isa_outsl
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#define readb(addr) in_8(addr)
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#define writeb(val, addr) out_8((addr), (val))
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#define readw(addr) in_le16(addr)
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#define writew(val, addr) out_le16((addr), (val))
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#endif /* CONFIG_ATARI_ROM_ISA */
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#if !defined(CONFIG_ISA) && !defined(CONFIG_ATARI_ROM_ISA)
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/*
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* We need to define dummy functions for GENERIC_IOMAP support.
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*/
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@ -319,7 +443,7 @@ static inline void isa_delay(void)
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#define readw(addr) in_le16(addr)
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#define writew(val,addr) out_le16((addr),(val))
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#endif /* CONFIG_ISA */
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#endif /* !CONFIG_ISA && !CONFIG_ATARI_ROM_ISA */
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#define readl(addr) in_le32(addr)
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#define writel(val,addr) out_le32((addr),(val))
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@ -10,7 +10,7 @@
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#ifdef __KERNEL__
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#include <asm/types.h>
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#include <asm/byteorder.h>
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/* Values for nocacheflag and cmode */
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@ -60,6 +60,57 @@ extern void __iounmap(void *addr, unsigned long size);
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#define __raw_writew(val,addr) out_be16((addr),(val))
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#define __raw_writel(val,addr) out_be32((addr),(val))
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/*
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* Atari ROM port (cartridge port) ISA adapter, used for the EtherNEC NE2000
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* network card driver.
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* The ISA adapter connects address lines A9-A13 to ISA address lines A0-A4,
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* and hardwires the rest of the ISA addresses for a base address of 0x300.
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*
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* Data lines D8-D15 are connected to ISA data lines D0-D7 for reading.
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* For writes, address lines A1-A8 are latched to ISA data lines D0-D7
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* (meaning the bit pattern on A1-A8 can be read back as byte).
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*
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* Read and write operations are distinguished by the base address used:
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* reads are from the ROM A side range, writes are through the B side range
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* addresses (A side base + 0x10000).
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*
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* Reads and writes are byte only.
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*
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* 16 bit reads and writes are necessary for the NetUSBee adapter's USB
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* chipset - 16 bit words are read straight off the ROM port while 16 bit
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* reads are split into two byte writes. The low byte is latched to the
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* NetUSBee buffer by a read from the _read_ window (with the data pattern
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* asserted as A1-A8 address pattern). The high byte is then written to the
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* write range as usual, completing the write cycle.
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*/
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#if defined(CONFIG_ATARI_ROM_ISA)
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#define rom_in_8(addr) \
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({ u16 __v = (*(__force volatile u16 *) (addr)); __v >>= 8; __v; })
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#define rom_in_be16(addr) \
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({ u16 __v = (*(__force volatile u16 *) (addr)); __v; })
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#define rom_in_le16(addr) \
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({ u16 __v = le16_to_cpu(*(__force volatile u16 *) (addr)); __v; })
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#define rom_out_8(addr, b) \
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({u8 __w, __v = (b); u32 _addr = ((u32) (addr)); \
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__w = ((*(__force volatile u8 *) ((_addr | 0x10000) + (__v<<1)))); })
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#define rom_out_be16(addr, w) \
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({u16 __w, __v = (w); u32 _addr = ((u32) (addr)); \
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__w = ((*(__force volatile u16 *) ((_addr & 0xFFFF0000UL) + ((__v & 0xFF)<<1)))); \
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__w = ((*(__force volatile u16 *) ((_addr | 0x10000) + ((__v >> 8)<<1)))); })
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#define rom_out_le16(addr, w) \
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({u16 __w, __v = (w); u32 _addr = ((u32) (addr)); \
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__w = ((*(__force volatile u16 *) ((_addr & 0xFFFF0000UL) + ((__v >> 8)<<1)))); \
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__w = ((*(__force volatile u16 *) ((_addr | 0x10000) + ((__v & 0xFF)<<1)))); })
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#define raw_rom_inb rom_in_8
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#define raw_rom_inw rom_in_be16
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#define raw_rom_outb(val, port) rom_out_8((port), (val))
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#define raw_rom_outw(val, port) rom_out_be16((port), (val))
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#endif /* CONFIG_ATARI_ROM_ISA */
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static inline void raw_insb(volatile u8 __iomem *port, u8 *buf, unsigned int len)
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{
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unsigned int i;
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@ -342,6 +393,62 @@ static inline void raw_outsw_swapw(volatile u16 __iomem *port, const u16 *buf,
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: "d0", "a0", "a1", "d6");
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}
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#if defined(CONFIG_ATARI_ROM_ISA)
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static inline void raw_rom_insb(volatile u8 __iomem *port, u8 *buf, unsigned int len)
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{
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unsigned int i;
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for (i = 0; i < len; i++)
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*buf++ = rom_in_8(port);
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}
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static inline void raw_rom_outsb(volatile u8 __iomem *port, const u8 *buf,
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unsigned int len)
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{
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unsigned int i;
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for (i = 0; i < len; i++)
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rom_out_8(port, *buf++);
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}
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static inline void raw_rom_insw(volatile u16 __iomem *port, u16 *buf,
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unsigned int nr)
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{
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unsigned int i;
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for (i = 0; i < nr; i++)
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*buf++ = rom_in_be16(port);
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}
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static inline void raw_rom_outsw(volatile u16 __iomem *port, const u16 *buf,
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unsigned int nr)
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{
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unsigned int i;
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for (i = 0; i < nr; i++)
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rom_out_be16(port, *buf++);
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}
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static inline void raw_rom_insw_swapw(volatile u16 __iomem *port, u16 *buf,
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unsigned int nr)
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{
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unsigned int i;
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for (i = 0; i < nr; i++)
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*buf++ = rom_in_le16(port);
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}
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static inline void raw_rom_outsw_swapw(volatile u16 __iomem *port, const u16 *buf,
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unsigned int nr)
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{
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unsigned int i;
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for (i = 0; i < nr; i++)
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||||
rom_out_le16(port, *buf++);
|
||||
}
|
||||
#endif /* CONFIG_ATARI_ROM_ISA */
|
||||
|
||||
#endif /* __KERNEL__ */
|
||||
|
||||
#endif /* _RAW_IO_H */
|
||||
|
|
|
|||
|
|
@ -381,6 +381,12 @@ void __init setup_arch(char **cmdline_p)
|
|||
isa_sex = 1;
|
||||
}
|
||||
#endif
|
||||
#ifdef CONFIG_ATARI_ROM_ISA
|
||||
if (MACH_IS_ATARI) {
|
||||
isa_type = ISA_TYPE_ENEC;
|
||||
isa_sex = 0;
|
||||
}
|
||||
#endif
|
||||
#endif
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue