diff options
Diffstat (limited to 'arch/sh')
| -rw-r--r-- | arch/sh/Kconfig | 3 | ||||
| -rw-r--r-- | arch/sh/boards/board-secureedge5410.c | 2 | ||||
| -rw-r--r-- | arch/sh/drivers/pci/pci.c | 3 | ||||
| -rw-r--r-- | arch/sh/include/asm/io.h | 345 | ||||
| -rw-r--r-- | arch/sh/include/asm/io_generic.h | 25 | ||||
| -rw-r--r-- | arch/sh/include/asm/machvec.h | 21 | ||||
| -rw-r--r-- | arch/sh/kernel/Makefile | 6 | ||||
| -rw-r--r-- | arch/sh/kernel/io_generic.c | 180 | ||||
| -rw-r--r-- | arch/sh/kernel/iomap.c | 165 | ||||
| -rw-r--r-- | arch/sh/kernel/ioport.c | 43 | ||||
| -rw-r--r-- | arch/sh/kernel/machvec.c | 22 |
11 files changed, 396 insertions, 419 deletions
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index 5c075f5..32cd5f1 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -161,7 +161,8 @@ config ARCH_HAS_CPU_IDLE_WAIT def_bool y config NO_IOPORT - bool + def_bool !PCI + depends on !SH_CAYMAN && !SH_SH4202_MICRODEV config IO_TRAPPED bool diff --git a/arch/sh/boards/board-secureedge5410.c b/arch/sh/boards/board-secureedge5410.c index 32f875e..f968f17 100644 --- a/arch/sh/boards/board-secureedge5410.c +++ b/arch/sh/boards/board-secureedge5410.c @@ -29,8 +29,6 @@ unsigned short secureedge5410_ioport; */ static irqreturn_t eraseconfig_interrupt(int irq, void *dev_id) { - ctrl_delay(); /* dummy read */ - printk("SnapGear: erase switch interrupt!\n"); return IRQ_HANDLED; diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c index 60ee09a..a09c77d 100644 --- a/arch/sh/drivers/pci/pci.c +++ b/arch/sh/drivers/pci/pci.c @@ -382,14 +382,13 @@ static void __iomem *ioport_map_pci(struct pci_dev *dev, struct pci_channel *chan = dev->sysdata; if (unlikely(!chan->io_map_base)) { - chan->io_map_base = generic_io_base; + chan->io_map_base = sh_io_port_base; if (pci_domains_supported) panic("To avoid data corruption io_map_base MUST be " "set with multiple PCI domains."); } - return (void __iomem *)(chan->io_map_base + port); } diff --git a/arch/sh/include/asm/io.h b/arch/sh/include/asm/io.h index b237d52..89ab2c5 100644 --- a/arch/sh/include/asm/io.h +++ b/arch/sh/include/asm/io.h @@ -1,5 +1,6 @@ #ifndef __ASM_SH_IO_H #define __ASM_SH_IO_H + /* * Convention: * read{b,w,l,q}/write{b,w,l,q} are for PCI, @@ -15,12 +16,6 @@ * SuperH specific I/O (raw I/O to on-chip CPU peripherals). In practice * these have the same semantics as the __raw variants, and as such, all * new code should be using the __raw versions. - * - * All ISA I/O routines are wrapped through the machine vector. If a - * board does not provide overrides, a generic set that are copied in - * from the default machine vector are used instead. These are largely - * for old compat code for I/O offseting to SuperIOs, all of which are - * better handled through the machvec ioport mapping routines these days. */ #include <linux/errno.h> #include <asm/cache.h> @@ -31,39 +26,10 @@ #include <asm-generic/iomap.h> #ifdef __KERNEL__ -/* - * Depending on which platform we are running on, we need different - * I/O functions. - */ -#define __IO_PREFIX generic +#define __IO_PREFIX generic #include <asm/io_generic.h> #include <asm/io_trapped.h> -#ifdef CONFIG_HAS_IOPORT - -#define inb(p) sh_mv.mv_inb((p)) -#define inw(p) sh_mv.mv_inw((p)) -#define inl(p) sh_mv.mv_inl((p)) -#define outb(x,p) sh_mv.mv_outb((x),(p)) -#define outw(x,p) sh_mv.mv_outw((x),(p)) -#define outl(x,p) sh_mv.mv_outl((x),(p)) - -#define inb_p(p) sh_mv.mv_inb_p((p)) -#define inw_p(p) sh_mv.mv_inw_p((p)) -#define inl_p(p) sh_mv.mv_inl_p((p)) -#define outb_p(x,p) sh_mv.mv_outb_p((x),(p)) -#define outw_p(x,p) sh_mv.mv_outw_p((x),(p)) -#define outl_p(x,p) sh_mv.mv_outl_p((x),(p)) - -#define insb(p,b,c) sh_mv.mv_insb((p), (b), (c)) -#define insw(p,b,c) sh_mv.mv_insw((p), (b), (c)) -#define insl(p,b,c) sh_mv.mv_insl((p), (b), (c)) -#define outsb(p,b,c) sh_mv.mv_outsb((p), (b), (c)) -#define outsw(p,b,c) sh_mv.mv_outsw((p), (b), (c)) -#define outsl(p,b,c) sh_mv.mv_outsl((p), (b), (c)) - -#endif - #define __raw_writeb(v,a) (__chk_io_ptr(a), *(volatile u8 __force *)(a) = (v)) #define __raw_writew(v,a) (__chk_io_ptr(a), *(volatile u16 __force *)(a) = (v)) #define __raw_writel(v,a) (__chk_io_ptr(a), *(volatile u32 __force *)(a) = (v)) @@ -74,68 +40,39 @@ #define __raw_readl(a) (__chk_io_ptr(a), *(volatile u32 __force *)(a)) #define __raw_readq(a) (__chk_io_ptr(a), *(volatile u64 __force *)(a)) -#define readb(a) ({ u8 r_ = __raw_readb(a); mb(); r_; }) -#define readw(a) ({ u16 r_ = __raw_readw(a); mb(); r_; }) -#define readl(a) ({ u32 r_ = __raw_readl(a); mb(); r_; }) -#define readq(a) ({ u64 r_ = __raw_readq(a); mb(); r_; }) - -#define writeb(v,a) ({ __raw_writeb((v),(a)); mb(); }) -#define writew(v,a) ({ __raw_writew((v),(a)); mb(); }) -#define writel(v,a) ({ __raw_writel((v),(a)); mb(); }) -#define writeq(v,a) ({ __raw_writeq((v),(a)); mb(); }) - -/* - * Legacy SuperH on-chip I/O functions - * - * These are all deprecated, all new (and especially cross-platform) code - * should be using the __raw_xxx() routines directly. - */ -static inline u8 __deprecated ctrl_inb(unsigned long addr) -{ - return __raw_readb(addr); -} - -static inline u16 __deprecated ctrl_inw(unsigned long addr) -{ - return __raw_readw(addr); -} - -static inline u32 __deprecated ctrl_inl(unsigned long addr) -{ - return __raw_readl(addr); -} - -static inline u64 __deprecated ctrl_inq(unsigned long addr) -{ - return __raw_readq(addr); -} - -static inline void __deprecated ctrl_outb(u8 v, unsigned long addr) -{ - __raw_writeb(v, addr); -} - -static inline void __deprecated ctrl_outw(u16 v, unsigned long addr) -{ - __raw_writew(v, addr); -} - -static inline void __deprecated ctrl_outl(u32 v, unsigned long addr) -{ - __raw_writel(v, addr); -} - -static inline void __deprecated ctrl_outq(u64 v, unsigned long addr) -{ - __raw_writeq(v, addr); -} - -extern unsigned long generic_io_base; - -static inline void ctrl_delay(void) -{ - __raw_readw(generic_io_base); -} +#define readb_relaxed(c) ({ u8 __v = __raw_readb(c); __v; }) +#define readw_relaxed(c) ({ u16 __v = le16_to_cpu((__force __le16) \ + __raw_readw(c)); __v; }) +#define readl_relaxed(c) ({ u32 __v = le32_to_cpu((__force __le32) \ + __raw_readl(c)); __v; }) +#define readq_relaxed(c) ({ u64 __v = le64_to_cpu((__force __le64) \ + __raw_readq(c)); __v; }) + +#define writeb_relaxed(v,c) ((void)__raw_writeb(v,c)) +#define writew_relaxed(v,c) ((void)__raw_writew((__force u16) \ + cpu_to_le16(v),c)) +#define writel_relaxed(v,c) ((void)__raw_writel((__force u32) \ + cpu_to_le32(v),c)) +#define writeq_relaxed(v,c) ((void)__raw_writeq((__force u64) \ + cpu_to_le64(v),c)) + +#define readb(a) ({ u8 r_ = readb_relaxed(a); rmb(); r_; }) +#define readw(a) ({ u16 r_ = readw_relaxed(a); rmb(); r_; }) +#define readl(a) ({ u32 r_ = readl_relaxed(a); rmb(); r_; }) +#define readq(a) ({ u64 r_ = readq_relaxed(a); rmb(); r_; }) + +#define writeb(v,a) ({ wmb(); writeb_relaxed((v),(a)); }) +#define writew(v,a) ({ wmb(); writew_relaxed((v),(a)); }) +#define writel(v,a) ({ wmb(); writel_relaxed((v),(a)); }) +#define writeq(v,a) ({ wmb(); writeq_relaxed((v),(a)); }) + +#define readsb(p,d,l) __raw_readsb(p,d,l) +#define readsw(p,d,l) __raw_readsw(p,d,l) +#define readsl(p,d,l) __raw_readsl(p,d,l) + +#define writesb(p,d,l) __raw_writesb(p,d,l) +#define writesw(p,d,l) __raw_writesw(p,d,l) +#define writesl(p,d,l) __raw_writesl(p,d,l) #define __BUILD_UNCACHED_IO(bwlq, type) \ static inline type read##bwlq##_uncached(unsigned long addr) \ @@ -159,10 +96,11 @@ __BUILD_UNCACHED_IO(w, u16) __BUILD_UNCACHED_IO(l, u32) __BUILD_UNCACHED_IO(q, u64) -#define __BUILD_MEMORY_STRING(bwlq, type) \ +#define __BUILD_MEMORY_STRING(pfx, bwlq, type) \ \ -static inline void __raw_writes##bwlq(volatile void __iomem *mem, \ - const void *addr, unsigned int count) \ +static inline void \ +pfx##writes##bwlq(volatile void __iomem *mem, const void *addr, \ + unsigned int count) \ { \ const volatile type *__addr = addr; \ \ @@ -172,8 +110,8 @@ static inline void __raw_writes##bwlq(volatile void __iomem *mem, \ } \ } \ \ -static inline void __raw_reads##bwlq(volatile void __iomem *mem, \ - void *addr, unsigned int count) \ +static inline void pfx##reads##bwlq(volatile void __iomem *mem, \ + void *addr, unsigned int count) \ { \ volatile type *__addr = addr; \ \ @@ -183,85 +121,166 @@ static inline void __raw_reads##bwlq(volatile void __iomem *mem, \ } \ } -__BUILD_MEMORY_STRING(b, u8) -__BUILD_MEMORY_STRING(w, u16) +__BUILD_MEMORY_STRING(__raw_, b, u8) +__BUILD_MEMORY_STRING(__raw_, w, u16) #ifdef CONFIG_SUPERH32 void __raw_writesl(void __iomem *addr, const void *data, int longlen); void __raw_readsl(const void __iomem *addr, void *data, int longlen); #else -__BUILD_MEMORY_STRING(l, u32) +__BUILD_MEMORY_STRING(__raw_, l, u32) #endif -__BUILD_MEMORY_STRING(q, u64) - -#define writesb __raw_writesb -#define writesw __raw_writesw -#define writesl __raw_writesl - -#define readsb __raw_readsb -#define readsw __raw_readsw -#define readsl __raw_readsl - -#define readb_relaxed(a) readb(a) -#define readw_relaxed(a) readw(a) -#define readl_relaxed(a) readl(a) -#define readq_relaxed(a) readq(a) - -#ifndef CONFIG_GENERIC_IOMAP -/* Simple MMIO */ -#define ioread8(a) __raw_readb(a) -#define ioread16(a) __raw_readw(a) -#define ioread16be(a) be16_to_cpu(__raw_readw((a))) -#define ioread32(a) __raw_readl(a) -#define ioread32be(a) be32_to_cpu(__raw_readl((a))) - -#define iowrite8(v,a) __raw_writeb((v),(a)) -#define iowrite16(v,a) __raw_writew((v),(a)) -#define iowrite16be(v,a) __raw_writew(cpu_to_be16((v)),(a)) -#define iowrite32(v,a) __raw_writel((v),(a)) -#define iowrite32be(v,a) __raw_writel(cpu_to_be32((v)),(a)) - -#define ioread8_rep(a, d, c) __raw_readsb((a), (d), (c)) -#define ioread16_rep(a, d, c) __raw_readsw((a), (d), (c)) -#define ioread32_rep(a, d, c) __raw_readsl((a), (d), (c)) - -#define iowrite8_rep(a, s, c) __raw_writesb((a), (s), (c)) -#define iowrite16_rep(a, s, c) __raw_writesw((a), (s), (c)) -#define iowrite32_rep(a, s, c) __raw_writesl((a), (s), (c)) +__BUILD_MEMORY_STRING(__raw_, q, u64) + +#ifdef CONFIG_HAS_IOPORT + +/* + * Slowdown I/O port space accesses for antique hardware. + */ +#undef CONF_SLOWDOWN_IO + +/* + * On SuperH I/O ports are memory mapped, so we access them using normal + * load/store instructions. sh_io_port_base is the virtual address to + * which all ports are being mapped. + */ +extern const unsigned long sh_io_port_base; + +static inline void __set_io_port_base(unsigned long pbase) +{ + *(unsigned long *)&sh_io_port_base = pbase; + barrier(); +} + +#ifdef CONFIG_GENERIC_IOMAP +#define __ioport_map ioport_map +#else +extern void __iomem *__ioport_map(unsigned long addr, unsigned int size); #endif -#define mmio_insb(p,d,c) __raw_readsb(p,d,c) -#define mmio_insw(p,d,c) __raw_readsw(p,d,c) -#define mmio_insl(p,d,c) __raw_readsl(p,d,c) +#ifdef CONF_SLOWDOWN_IO +#define SLOW_DOWN_IO __raw_readw(sh_io_port_base) +#else +#define SLOW_DOWN_IO +#endif -#define mmio_outsb(p,s,c) __raw_writesb(p,s,c) -#define mmio_outsw(p,s,c) __raw_writesw(p,s,c) -#define mmio_outsl(p,s,c) __raw_writesl(p,s,c) +#define __BUILD_IOPORT_SINGLE(pfx, bwlq, type, p, slow) \ + \ +static inline void pfx##out##bwlq##p(type val, unsigned long port) \ +{ \ + volatile type *__addr; \ + \ + __addr = __ioport_map(port, sizeof(type)); \ + *__addr = val; \ + slow; \ +} \ + \ +static inline type pfx##in##bwlq##p(unsigned long port) \ +{ \ + volatile type *__addr; \ + type __val; \ + \ + __addr = __ioport_map(port, sizeof(type)); \ + __val = *__addr; \ + slow; \ + \ + return __val; \ +} -/* synco on SH-4A, otherwise a nop */ -#define mmiowb() wmb() +#define __BUILD_IOPORT_PFX(bus, bwlq, type) \ + __BUILD_IOPORT_SINGLE(bus, bwlq, type, ,) \ + __BUILD_IOPORT_SINGLE(bus, bwlq, type, _p, SLOW_DOWN_IO) -#define IO_SPACE_LIMIT 0xffffffff +#define BUILDIO_IOPORT(bwlq, type) \ + __BUILD_IOPORT_PFX(, bwlq, type) -#ifdef CONFIG_HAS_IOPORT +BUILDIO_IOPORT(b, u8) +BUILDIO_IOPORT(w, u16) +BUILDIO_IOPORT(l, u32) +BUILDIO_IOPORT(q, u64) + +#define __BUILD_IOPORT_STRING(bwlq, type) \ + \ +static inline void outs##bwlq(unsigned long port, const void *addr, \ + unsigned int count) \ +{ \ + const volatile type *__addr = addr; \ + \ + while (count--) { \ + out##bwlq(*__addr, port); \ + __addr++; \ + } \ +} \ + \ +static inline void ins##bwlq(unsigned long port, void *addr, \ + unsigned int count) \ +{ \ + volatile type *__addr = addr; \ + \ + while (count--) { \ + *__addr = in##bwlq(port); \ + __addr++; \ + } \ +} + +__BUILD_IOPORT_STRING(b, u8) +__BUILD_IOPORT_STRING(w, u16) +__BUILD_IOPORT_STRING(l, u32) +__BUILD_IOPORT_STRING(q, u64) + +#endif /* - * This function provides a method for the generic case where a - * board-specific ioport_map simply needs to return the port + some - * arbitrary port base. + * Legacy SuperH on-chip I/O functions * - * We use this at board setup time to implicitly set the port base, and - * as a result, we can use the generic ioport_map. + * These are all deprecated, all new (and especially cross-platform) code + * should be using the __raw_xxx() routines directly. */ -static inline void __set_io_port_base(unsigned long pbase) +static inline u8 __deprecated ctrl_inb(unsigned long addr) { - generic_io_base = pbase; + return __raw_readb(addr); } -#define __ioport_map(p, n) sh_mv.mv_ioport_map((p), (n)) +static inline u16 __deprecated ctrl_inw(unsigned long addr) +{ + return __raw_readw(addr); +} -#endif +static inline u32 __deprecated ctrl_inl(unsigned long addr) +{ + return __raw_readl(addr); +} + +static inline u64 __deprecated ctrl_inq(unsigned long addr) +{ + return __raw_readq(addr); +} + +static inline void __deprecated ctrl_outb(u8 v, unsigned long addr) +{ + __raw_writeb(v, addr); +} + +static inline void __deprecated ctrl_outw(u16 v, unsigned long addr) +{ + __raw_writew(v, addr); +} + +static inline void __deprecated ctrl_outl(u32 v, unsigned long addr) +{ + __raw_writel(v, addr); +} + +static inline void __deprecated ctrl_outq(u64 v, unsigned long addr) +{ + __raw_writeq(v, addr); +} + +#define IO_SPACE_LIMIT 0xffffffff + +/* synco on SH-4A, otherwise a nop */ +#define mmiowb() wmb() /* We really want to try and get these to memcpy etc */ void memcpy_fromio(void *, const volatile void __iomem *, unsigned long); @@ -395,10 +414,6 @@ static inline int iounmap_fixed(void __iomem *addr) { return -EINVAL; } #define ioremap_nocache ioremap #define iounmap __iounmap -#define maybebadio(port) \ - printk(KERN_ERR "bad PC-like io %s:%u for port 0x%lx at 0x%08x\n", \ - __func__, __LINE__, (port), (u32)__builtin_return_address(0)) - /* * Convert a physical pointer to a virtual kernel pointer for /dev/mem * access diff --git a/arch/sh/include/asm/io_generic.h b/arch/sh/include/asm/io_generic.h index 491df93..b5f6956 100644 --- a/arch/sh/include/asm/io_generic.h +++ b/arch/sh/include/asm/io_generic.h @@ -11,31 +11,6 @@ #error "Don't include this header without a valid system prefix" #endif -u8 IO_CONCAT(__IO_PREFIX,inb)(unsigned long); -u16 IO_CONCAT(__IO_PREFIX,inw)(unsigned long); -u32 IO_CONCAT(__IO_PREFIX,inl)(unsigned long); - -void IO_CONCAT(__IO_PREFIX,outb)(u8, unsigned long); -void IO_CONCAT(__IO_PREFIX,outw)(u16, unsigned long); -void IO_CONCAT(__IO_PREFIX,outl)(u32, unsigned long); - -u8 IO_CONCAT(__IO_PREFIX,inb_p)(unsigned long); -u16 IO_CONCAT(__IO_PREFIX,inw_p)(unsigned long); -u32 IO_CONCAT(__IO_PREFIX,inl_p)(unsigned long); -void IO_CONCAT(__IO_PREFIX,outb_p)(u8, unsigned long); -void IO_CONCAT(__IO_PREFIX,outw_p)(u16, unsigned long); -void IO_CONCAT(__IO_PREFIX,outl_p)(u32, unsigned long); - -void IO_CONCAT(__IO_PREFIX,insb)(unsigned long, void *dst, unsigned long count); -void IO_CONCAT(__IO_PREFIX,insw)(unsigned long, void *dst, unsigned long count); -void IO_CONCAT(__IO_PREFIX,insl)(unsigned long, void *dst, unsigned long count); -void IO_CONCAT(__IO_PREFIX,outsb)(unsigned long, const void *src, unsigned long count); -void IO_CONCAT(__IO_PREFIX,outsw)(unsigned long, const void *src, unsigned long count); -void IO_CONCAT(__IO_PREFIX,outsl)(unsigned long, const void *src, unsigned long count); - -void *IO_CONCAT(__IO_PREFIX,ioremap)(unsigned long offset, unsigned long size); -void IO_CONCAT(__IO_PREFIX,iounmap)(void *addr); - void __iomem *IO_CONCAT(__IO_PREFIX,ioport_map)(unsigned long addr, unsigned int size); void IO_CONCAT(__IO_PREFIX,ioport_unmap)(void __iomem *addr); void IO_CONCAT(__IO_PREFIX,mem_init)(void); diff --git a/arch/sh/include/asm/machvec.h b/arch/sh/include/asm/machvec.h index a0b0cf7..dd5d6e5 100644 --- a/arch/sh/include/asm/machvec.h +++ b/arch/sh/include/asm/machvec.h @@ -23,27 +23,6 @@ struct sh_machine_vector { void (*mv_init_irq)(void); #ifdef CONFIG_HAS_IOPORT - u8 (*mv_inb)(unsigned long); - u16 (*mv_inw)(unsigned long); - u32 (*mv_inl)(unsigned long); - void (*mv_outb)(u8, unsigned long); - void (*mv_outw)(u16, unsigned long); - void (*mv_outl)(u32, unsigned long); - - u8 (*mv_inb_p)(unsigned long); - u16 (*mv_inw_p)(unsigned long); - u32 (*mv_inl_p)(unsigned long); - void (*mv_outb_p)(u8, unsigned long); - void (*mv_outw_p)(u16, unsigned long); - void (*mv_outl_p)(u32, unsigned long); - - void (*mv_insb)(unsigned long, void *dst, unsigned long count); - void (*mv_insw)(unsigned long, void *dst, unsigned long count); - void (*mv_insl)(unsigned long, void *dst, unsigned long count); - void (*mv_outsb)(unsigned long, const void *src, unsigned long count); - void (*mv_outsw)(unsigned long, const void *src, unsigned long count); - void (*mv_outsl)(unsigned long, const void *src, unsigned long count); - void __iomem *(*mv_ioport_map)(unsigned long port, unsigned int size); void (*mv_ioport_unmap)(void __iomem *); #endif diff --git a/arch/sh/kernel/Makefile b/arch/sh/kernel/Makefile index 8eed6a4..ff80227 100644 --- a/arch/sh/kernel/Makefile +++ b/arch/sh/kernel/Makefile @@ -20,6 +20,11 @@ obj-y := clkdev.o debugtraps.o dma-nommu.o dumpstack.o \ syscalls_$(BITS).o time.o topology.o traps.o \ traps_$(BITS).o unwinder.o +ifndef CONFIG_GENERIC_IOMAP +obj-y += iomap.o +obj-$(CONFIG_HAS_IOPORT) += ioport.o +endif + obj-y += cpu/ obj-$(CONFIG_VSYSCALL) += vsyscall/ obj-$(CONFIG_SMP) += smp.o @@ -39,7 +44,6 @@ obj-$(CONFIG_DUMP_CODE) += disassemble.o obj-$(CONFIG_HIBERNATION) += swsusp.o obj-$(CONFIG_DWARF_UNWINDER) += dwarf.o obj-$(CONFIG_PERF_EVENTS) += perf_event.o perf_callchain.o -obj-$(CONFIG_HAS_IOPORT) += io_generic.o obj-$(CONFIG_HAVE_HW_BREAKPOINT) += hw_breakpoint.o obj-$(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST) += localtimer.o diff --git a/arch/sh/kernel/io_generic.c b/arch/sh/kernel/io_generic.c deleted file mode 100644 index 447d78f..0000000 --- a/arch/sh/kernel/io_generic.c +++ /dev/null @@ -1,180 +0,0 @@ -/* - * arch/sh/kernel/io_generic.c - * - * Copyright (C) 2000 Niibe Yutaka - * Copyright (C) 2005 - 2007 Paul Mundt - * - * Generic I/O routine. These can be used where a machine specific version - * is not required. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ -#include <linux/module.h> -#include <linux/io.h> -#include <asm/machvec.h> - -#ifdef CONFIG_CPU_SH3 -/* SH3 has a PCMCIA bug that needs a dummy read from area 6 for a - * workaround. */ -/* I'm not sure SH7709 has this kind of bug */ -#define dummy_read() __raw_readb(0xba000000) -#else -#define dummy_read() -#endif - -unsigned long generic_io_base = 0; - -u8 generic_inb(unsigned long port) -{ - return __raw_readb(__ioport_map(port, 1)); -} - -u16 generic_inw(unsigned long port) -{ - return __raw_readw(__ioport_map(port, 2)); -} - -u32 generic_inl(unsigned long port) -{ - return __raw_readl(__ioport_map(port, 4)); -} - -u8 generic_inb_p(unsigned long port) -{ - unsigned long v = generic_inb(port); - - ctrl_delay(); - return v; -} - -u16 generic_inw_p(unsigned long port) -{ - unsigned long v = generic_inw(port); - - ctrl_delay(); - return v; -} - -u32 generic_inl_p(unsigned long port) -{ - unsigned long v = generic_inl(port); - - ctrl_delay(); - return v; -} - -/* - * insb/w/l all read a series of bytes/words/longs from a fixed port - * address. However as the port address doesn't change we only need to - * convert the port address to real address once. - */ - -void generic_insb(unsigned long port, void *dst, unsigned long count) -{ - __raw_readsb(__ioport_map(port, 1), dst, count); - dummy_read(); -} - -void generic_insw(unsigned long port, void *dst, unsigned long count) -{ - __raw_readsw(__ioport_map(port, 2), dst, count); - dummy_read(); -} - -void generic_insl(unsigned long port, void *dst, unsigned long count) -{ - __raw_readsl(__ioport_map(port, 4), dst, count); - dummy_read(); -} - -void generic_outb(u8 b, unsigned long port) -{ - __raw_writeb(b, __ioport_map(port, 1)); -} - -void generic_outw(u16 b, unsigned long port) -{ - __raw_writew(b, __ioport_map(port, 2)); -} - -void generic_outl(u32 b, unsigned long port) -{ - __raw_writel(b, __ioport_map(port, 4)); -} - -void generic_outb_p(u8 b, unsigned long port) -{ - generic_outb(b, port); - ctrl_delay(); -} - -void generic_outw_p(u16 b, unsigned long port) -{ - generic_outw(b, port); - ctrl_delay(); -} - -void generic_outl_p(u32 b, unsigned long port) -{ - generic_outl(b, port); - ctrl_delay(); -} - -/* - * outsb/w/l all write a series of bytes/words/longs to a fixed port - * address. However as the port address doesn't change we only need to - * convert the port address to real address once. - */ -void generic_outsb(unsigned long port, const void *src, unsigned long count) -{ - __raw_writesb(__ioport_map(port, 1), src, count); - dummy_read(); -} - -void generic_outsw(unsigned long port, const void *src, unsigned long count) -{ - __raw_writesw(__ioport_map(port, 2), src, count); - dummy_read(); -} - -void generic_outsl(unsigned long port, const void *src, unsigned long count) -{ - __raw_writesl(__ioport_map(port, 4), src, count); - dummy_read(); -} - -void __iomem *generic_ioport_map(unsigned long addr, unsigned int size) -{ -#ifdef P1SEG - if (PXSEG(addr) >= P1SEG) - return (void __iomem *)addr; -#endif - - return (void __iomem *)(addr + generic_io_base); -} - -void generic_ioport_unmap(void __iomem *addr) -{ -} - -#ifndef CONFIG_GENERIC_IOMAP -void __iomem *ioport_map(unsigned long port, unsigned int nr) -{ - void __iomem *ret; - - ret = __ioport_map_trapped(port, nr); - if (ret) - return ret; - - return __ioport_map(port, nr); -} -EXPORT_SYMBOL(ioport_map); - -void ioport_unmap(void __iomem *addr) -{ - sh_mv.mv_ioport_unmap(addr); -} -EXPORT_SYMBOL(ioport_unmap); -#endif /* CONFIG_GENERIC_IOMAP */ diff --git a/arch/sh/kernel/iomap.c b/arch/sh/kernel/iomap.c new file mode 100644 index 0000000..2e8e8b9 --- /dev/null +++ b/arch/sh/kernel/iomap.c @@ -0,0 +1,165 @@ +/* + * arch/sh/kernel/iomap.c + * + * Copyright (C) 2000 Niibe Yutaka + * Copyright (C) 2005 - 2007 Paul Mundt + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/module.h> +#include <linux/io.h> + +unsigned int ioread8(void __iomem *addr) +{ + return readb(addr); +} +EXPORT_SYMBOL(ioread8); + +unsigned int ioread16(void __iomem *addr) +{ + return readw(addr); +} +EXPORT_SYMBOL(ioread16); + +unsigned int ioread16be(void __iomem *addr) +{ + return be16_to_cpu(__raw_readw(addr)); +} +EXPORT_SYMBOL(ioread16be); + +unsigned int ioread32(void __iomem *addr) +{ + return readl(addr); +} +EXPORT_SYMBOL(ioread32); + +unsigned int ioread32be(void __iomem *addr) +{ + return be32_to_cpu(__raw_readl(addr)); +} +EXPORT_SYMBOL(ioread32be); + +void iowrite8(u8 val, void __iomem *addr) +{ + writeb(val, addr); +} +EXPORT_SYMBOL(iowrite8); + +void iowrite16(u16 val, void __iomem *addr) +{ + writew(val, addr); +} +EXPORT_SYMBOL(iowrite16); + +void iowrite16be(u16 val, void __iomem *addr) +{ + __raw_writew(cpu_to_be16(val), addr); +} +EXPORT_SYMBOL(iowrite16be); + +void iowrite32(u32 val, void __iomem *addr) +{ + writel(val, addr); +} +EXPORT_SYMBOL(iowrite32); + +void iowrite32be(u32 val, void __iomem *addr) +{ + __raw_writel(cpu_to_be32(val), addr); +} +EXPORT_SYMBOL(iowrite32be); + +/* + * These are the "repeat MMIO read/write" functions. + * Note the "__raw" accesses, since we don't want to + * convert to CPU byte order. We write in "IO byte + * order" (we also don't have IO barriers). + */ +static inline void mmio_insb(void __iomem *addr, u8 *dst, int count) +{ + while (--count >= 0) { + u8 data = __raw_readb(addr); + *dst = data; + dst++; + } +} + +static inline void mmio_insw(void __iomem *addr, u16 *dst, int count) +{ + while (--count >= 0) { + u16 data = __raw_readw(addr); + *dst = data; + dst++; + } +} + +static inline void mmio_insl(void __iomem *addr, u32 *dst, int count) +{ + while (--count >= 0) { + u32 data = __raw_readl(addr); + *dst = data; + dst++; + } +} + +static inline void mmio_outsb(void __iomem *addr, const u8 *src, int count) +{ + while (--count >= 0) { + __raw_writeb(*src, addr); + src++; + } +} + +static inline void mmio_outsw(void __iomem *addr, const u16 *src, int count) +{ + while (--count >= 0) { + __raw_writew(*src, addr); + src++; + } +} + +static inline void mmio_outsl(void __iomem *addr, const u32 *src, int count) +{ + while (--count >= 0) { + __raw_writel(*src, addr); + src++; + } +} + +void ioread8_rep(void __iomem *addr, void *dst, unsigned long count) +{ + mmio_insb(addr, dst, count); +} +EXPORT_SYMBOL(ioread8_rep); + +void ioread16_rep(void __iomem *addr, void *dst, unsigned long count) +{ + mmio_insw(addr, dst, count); +} +EXPORT_SYMBOL(ioread16_rep); + +void ioread32_rep(void __iomem *addr, void *dst, unsigned long count) +{ + mmio_insl(addr, dst, count); +} +EXPORT_SYMBOL(ioread32_rep); + +void iowrite8_rep(void __iomem *addr, const void *src, unsigned long count) +{ + mmio_outsb(addr, src, count); +} +EXPORT_SYMBOL(iowrite8_rep); + +void iowrite16_rep(void __iomem *addr, const void *src, unsigned long count) +{ + mmio_outsw(addr, src, count); +} +EXPORT_SYMBOL(iowrite16_rep); + +void iowrite32_rep(void __iomem *addr, const void *src, unsigned long count) +{ + mmio_outsl(addr, src, count); +} +EXPORT_SYMBOL(iowrite32_rep); diff --git a/arch/sh/kernel/ioport.c b/arch/sh/kernel/ioport.c new file mode 100644 index 0000000..e3ad610 --- /dev/null +++ b/arch/sh/kernel/ioport.c @@ -0,0 +1,43 @@ +/* + * arch/sh/kernel/ioport.c + * + * Copyright (C) 2000 Niibe Yutaka + * Copyright (C) 2005 - 2007 Paul Mundt + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/module.h> +#include <linux/io.h> + +const unsigned long sh_io_port_base __read_mostly = -1; +EXPORT_SYMBOL(sh_io_port_base); + +void __iomem *__ioport_map(unsigned long addr, unsigned int size) +{ + if (sh_mv.mv_ioport_map) + return sh_mv.mv_ioport_map(addr, size); + + return (void __iomem *)(addr + sh_io_port_base); +} +EXPORT_SYMBOL(__ioport_map); + +void __iomem *ioport_map(unsigned long port, unsigned int nr) +{ + void __iomem *ret; + + ret = __ioport_map_trapped(port, nr); + if (ret) + return ret; + + return __ioport_map(port, nr); +} +EXPORT_SYMBOL(ioport_map); + +void ioport_unmap(void __iomem *addr) +{ + if (sh_mv.mv_ioport_unmap) + sh_mv.mv_ioport_unmap(addr); +} +EXPORT_SYMBOL(ioport_unmap); diff --git a/arch/sh/kernel/machvec.c b/arch/sh/kernel/machvec.c index 9f9bb63..3d722e4 100644 --- a/arch/sh/kernel/machvec.c +++ b/arch/sh/kernel/machvec.c @@ -118,28 +118,6 @@ void __init sh_mv_setup(void) sh_mv.mv_##elem = generic_##elem; \ } while (0) -#ifdef CONFIG_HAS_IOPORT - -#ifdef P2SEG - __set_io_port_base(P2SEG); -#else - __set_io_port_base(0); -#endif - - mv_set(inb); mv_set(inw); mv_set(inl); - mv_set(outb); mv_set(outw); mv_set(outl); - - mv_set(inb_p); mv_set(inw_p); mv_set(inl_p); - mv_set(outb_p); mv_set(outw_p); mv_set(outl_p); - - mv_set(insb); mv_set(insw); mv_set(insl); - mv_set(outsb); mv_set(outsw); mv_set(outsl); - - mv_set(ioport_map); - mv_set(ioport_unmap); - -#endif - mv_set(irq_demux); mv_set(mode_pins); mv_set(mem_init); |