Sam Ravnborg | f5e706a | 2008-07-17 21:55:51 -0700 | [diff] [blame] | 1 | #ifndef __SPARC_IO_H |
| 2 | #define __SPARC_IO_H |
| 3 | |
| 4 | #include <linux/kernel.h> |
Sam Ravnborg | f5e706a | 2008-07-17 21:55:51 -0700 | [diff] [blame] | 5 | #include <linux/ioport.h> /* struct resource */ |
| 6 | |
Sam Ravnborg | f5e706a | 2008-07-17 21:55:51 -0700 | [diff] [blame] | 7 | #define readb_relaxed(__addr) readb(__addr) |
| 8 | #define readw_relaxed(__addr) readw(__addr) |
| 9 | #define readl_relaxed(__addr) readl(__addr) |
| 10 | |
Sam Ravnborg | f5e706a | 2008-07-17 21:55:51 -0700 | [diff] [blame] | 11 | #define IO_SPACE_LIMIT 0xffffffff |
| 12 | |
Sam Ravnborg | e1039fb | 2014-04-26 09:57:36 +0200 | [diff] [blame] | 13 | #define memset_io(d,c,sz) _memset_io(d,c,sz) |
| 14 | #define memcpy_fromio(d,s,sz) _memcpy_fromio(d,s,sz) |
| 15 | #define memcpy_toio(d,s,sz) _memcpy_toio(d,s,sz) |
| 16 | |
| 17 | #include <asm-generic/io.h> |
| 18 | |
| 19 | static inline void _memset_io(volatile void __iomem *dst, |
| 20 | int c, __kernel_size_t n) |
| 21 | { |
| 22 | volatile void __iomem *d = dst; |
| 23 | |
| 24 | while (n--) { |
| 25 | writeb(c, d); |
| 26 | d++; |
| 27 | } |
| 28 | } |
| 29 | |
| 30 | static inline void _memcpy_fromio(void *dst, const volatile void __iomem *src, |
| 31 | __kernel_size_t n) |
| 32 | { |
| 33 | char *d = dst; |
| 34 | |
| 35 | while (n--) { |
| 36 | char tmp = readb(src); |
| 37 | *d++ = tmp; |
| 38 | src++; |
| 39 | } |
| 40 | } |
| 41 | |
| 42 | static inline void _memcpy_toio(volatile void __iomem *dst, const void *src, |
| 43 | __kernel_size_t n) |
| 44 | { |
| 45 | const char *s = src; |
| 46 | volatile void __iomem *d = dst; |
| 47 | |
| 48 | while (n--) { |
| 49 | char tmp = *s++; |
| 50 | writeb(tmp, d); |
| 51 | d++; |
| 52 | } |
| 53 | } |
| 54 | |
Sam Ravnborg | f5e706a | 2008-07-17 21:55:51 -0700 | [diff] [blame] | 55 | /* |
| 56 | * SBus accessors. |
| 57 | * |
| 58 | * SBus has only one, memory mapped, I/O space. |
| 59 | * We do not need to flip bytes for SBus of course. |
| 60 | */ |
Sam Ravnborg | c3373da | 2014-04-26 09:57:37 +0200 | [diff] [blame] | 61 | static inline u8 sbus_readb(const volatile void __iomem *addr) |
Sam Ravnborg | f5e706a | 2008-07-17 21:55:51 -0700 | [diff] [blame] | 62 | { |
| 63 | return *(__force volatile u8 *)addr; |
| 64 | } |
| 65 | |
Sam Ravnborg | c3373da | 2014-04-26 09:57:37 +0200 | [diff] [blame] | 66 | static inline u16 sbus_readw(const volatile void __iomem *addr) |
Sam Ravnborg | f5e706a | 2008-07-17 21:55:51 -0700 | [diff] [blame] | 67 | { |
| 68 | return *(__force volatile u16 *)addr; |
| 69 | } |
| 70 | |
Sam Ravnborg | c3373da | 2014-04-26 09:57:37 +0200 | [diff] [blame] | 71 | static inline u32 sbus_readl(const volatile void __iomem *addr) |
Sam Ravnborg | f5e706a | 2008-07-17 21:55:51 -0700 | [diff] [blame] | 72 | { |
| 73 | return *(__force volatile u32 *)addr; |
| 74 | } |
| 75 | |
Sam Ravnborg | c3373da | 2014-04-26 09:57:37 +0200 | [diff] [blame] | 76 | static inline void sbus_writeb(u8 b, volatile void __iomem *addr) |
Sam Ravnborg | f5e706a | 2008-07-17 21:55:51 -0700 | [diff] [blame] | 77 | { |
| 78 | *(__force volatile u8 *)addr = b; |
| 79 | } |
| 80 | |
Sam Ravnborg | c3373da | 2014-04-26 09:57:37 +0200 | [diff] [blame] | 81 | static inline void sbus_writew(u16 w, volatile void __iomem *addr) |
Sam Ravnborg | f5e706a | 2008-07-17 21:55:51 -0700 | [diff] [blame] | 82 | { |
| 83 | *(__force volatile u16 *)addr = w; |
| 84 | } |
| 85 | |
Sam Ravnborg | c3373da | 2014-04-26 09:57:37 +0200 | [diff] [blame] | 86 | static inline void sbus_writel(u32 l, volatile void __iomem *addr) |
Sam Ravnborg | f5e706a | 2008-07-17 21:55:51 -0700 | [diff] [blame] | 87 | { |
| 88 | *(__force volatile u32 *)addr = l; |
| 89 | } |
| 90 | |
Sam Ravnborg | c3373da | 2014-04-26 09:57:37 +0200 | [diff] [blame] | 91 | static inline void sbus_memset_io(volatile void __iomem *__dst, int c, |
| 92 | __kernel_size_t n) |
Sam Ravnborg | f5e706a | 2008-07-17 21:55:51 -0700 | [diff] [blame] | 93 | { |
| 94 | while(n--) { |
| 95 | sbus_writeb(c, __dst); |
| 96 | __dst++; |
| 97 | } |
| 98 | } |
| 99 | |
Sam Ravnborg | c3373da | 2014-04-26 09:57:37 +0200 | [diff] [blame] | 100 | static inline void sbus_memcpy_fromio(void *dst, |
| 101 | const volatile void __iomem *src, |
| 102 | __kernel_size_t n) |
James Hogan | f11b478d | 2010-10-27 15:33:28 -0700 | [diff] [blame] | 103 | { |
| 104 | char *d = dst; |
| 105 | |
| 106 | while (n--) { |
| 107 | char tmp = sbus_readb(src); |
| 108 | *d++ = tmp; |
| 109 | src++; |
| 110 | } |
| 111 | } |
| 112 | |
Sam Ravnborg | c3373da | 2014-04-26 09:57:37 +0200 | [diff] [blame] | 113 | static inline void sbus_memcpy_toio(volatile void __iomem *dst, |
| 114 | const void *src, |
| 115 | __kernel_size_t n) |
James Hogan | f11b478d | 2010-10-27 15:33:28 -0700 | [diff] [blame] | 116 | { |
| 117 | const char *s = src; |
| 118 | volatile void __iomem *d = dst; |
| 119 | |
| 120 | while (n--) { |
| 121 | char tmp = *s++; |
| 122 | sbus_writeb(tmp, d); |
| 123 | d++; |
| 124 | } |
| 125 | } |
| 126 | |
Sam Ravnborg | f5e706a | 2008-07-17 21:55:51 -0700 | [diff] [blame] | 127 | #ifdef __KERNEL__ |
| 128 | |
| 129 | /* |
| 130 | * Bus number may be embedded in the higher bits of the physical address. |
| 131 | * This is why we have no bus number argument to ioremap(). |
| 132 | */ |
Sam Ravnborg | f05a686 | 2014-05-16 23:25:50 +0200 | [diff] [blame] | 133 | void __iomem *ioremap(unsigned long offset, unsigned long size); |
Sam Ravnborg | f5e706a | 2008-07-17 21:55:51 -0700 | [diff] [blame] | 134 | #define ioremap_nocache(X,Y) ioremap((X),(Y)) |
David S. Miller | 428695b | 2008-07-22 14:30:55 -0700 | [diff] [blame] | 135 | #define ioremap_wc(X,Y) ioremap((X),(Y)) |
Sam Ravnborg | f05a686 | 2014-05-16 23:25:50 +0200 | [diff] [blame] | 136 | void iounmap(volatile void __iomem *addr); |
Sam Ravnborg | f5e706a | 2008-07-17 21:55:51 -0700 | [diff] [blame] | 137 | |
Sam Ravnborg | f5e706a | 2008-07-17 21:55:51 -0700 | [diff] [blame] | 138 | /* Create a virtual mapping cookie for an IO port range */ |
Sam Ravnborg | f05a686 | 2014-05-16 23:25:50 +0200 | [diff] [blame] | 139 | void __iomem *ioport_map(unsigned long port, unsigned int nr); |
| 140 | void ioport_unmap(void __iomem *); |
Sam Ravnborg | f5e706a | 2008-07-17 21:55:51 -0700 | [diff] [blame] | 141 | |
| 142 | /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */ |
| 143 | struct pci_dev; |
Sam Ravnborg | f05a686 | 2014-05-16 23:25:50 +0200 | [diff] [blame] | 144 | void pci_iounmap(struct pci_dev *dev, void __iomem *); |
Sam Ravnborg | f5e706a | 2008-07-17 21:55:51 -0700 | [diff] [blame] | 145 | |
Sam Ravnborg | e1039fb | 2014-04-26 09:57:36 +0200 | [diff] [blame] | 146 | |
| 147 | |
Sam Ravnborg | f5e706a | 2008-07-17 21:55:51 -0700 | [diff] [blame] | 148 | /* |
Sam Ravnborg | f5e706a | 2008-07-17 21:55:51 -0700 | [diff] [blame] | 149 | * At the moment, we do not use CMOS_READ anywhere outside of rtc.c, |
| 150 | * so rtc_port is static in it. This should not change unless a new |
| 151 | * hardware pops up. |
| 152 | */ |
| 153 | #define RTC_PORT(x) (rtc_port + (x)) |
| 154 | #define RTC_ALWAYS_BCD 0 |
| 155 | |
David S. Miller | 63237ee | 2008-08-26 23:33:42 -0700 | [diff] [blame] | 156 | static inline int sbus_can_dma_64bit(void) |
| 157 | { |
| 158 | return 0; /* actually, sparc_cpu_model==sun4d */ |
| 159 | } |
| 160 | static inline int sbus_can_burst64(void) |
| 161 | { |
| 162 | return 0; /* actually, sparc_cpu_model==sun4d */ |
| 163 | } |
| 164 | struct device; |
Sam Ravnborg | f05a686 | 2014-05-16 23:25:50 +0200 | [diff] [blame] | 165 | void sbus_set_sbus64(struct device *, int); |
David S. Miller | 63237ee | 2008-08-26 23:33:42 -0700 | [diff] [blame] | 166 | |
Sam Ravnborg | f5e706a | 2008-07-17 21:55:51 -0700 | [diff] [blame] | 167 | #endif |
| 168 | |
| 169 | #define __ARCH_HAS_NO_PAGE_ZERO_MAPPED 1 |
| 170 | |
Sam Ravnborg | f5e706a | 2008-07-17 21:55:51 -0700 | [diff] [blame] | 171 | |
| 172 | #endif /* !(__SPARC_IO_H) */ |