--- /dev/null
+/*
+ * U-boot - io.h IO routines
+ *
+ * Copyright 2004-2009 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef _BLACKFIN_IO_H
+#define _BLACKFIN_IO_H
+
+#ifdef __KERNEL__
+
+#include <asm/blackfin.h>
+
+#define __iomem
+
+static inline void sync(void)
+{
+ SSYNC();
+}
+
+/*
+ * Given a physical address and a length, return a virtual address
+ * that can be used to access the memory range with the caching
+ * properties specified by "flags".
+ */
+#define MAP_NOCACHE (0)
+#define MAP_WRCOMBINE (0)
+#define MAP_WRBACK (0)
+#define MAP_WRTHROUGH (0)
+
+static inline void *
+map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags)
+{
+ return (void *)paddr;
+}
+
+/*
+ * Take down a mapping set up by map_physmem().
+ */
+static inline void unmap_physmem(void *vaddr, unsigned long flags)
+{
+
+}
+
+static inline phys_addr_t virt_to_phys(void * vaddr)
+{
+ return (phys_addr_t)(vaddr);
+}
+
+/*
+ * These are for ISA/PCI shared memory _only_ and should never be used
+ * on any other type of memory, including Zorro memory. They are meant to
+ * access the bus in the bus byte order which is little-endian!.
+ *
+ * readX/writeX() are used to access memory mapped devices. On some
+ * architectures the memory mapped IO stuff needs to be accessed
+ * differently. On the bfin architecture, we just read/write the
+ * memory location directly.
+ */
+#ifndef __ASSEMBLY__
+
+static inline unsigned char readb(const volatile void __iomem *addr)
+{
+ unsigned int val;
+ int tmp;
+
+ __asm__ __volatile__ (
+ "cli %1;"
+ "NOP; NOP; SSYNC;"
+ "%0 = b [%2] (z);"
+ "sti %1;"
+ : "=d"(val), "=d"(tmp)
+ : "a"(addr)
+ );
+
+ return (unsigned char) val;
+}
+
+static inline unsigned short readw(const volatile void __iomem *addr)
+{
+ unsigned int val;
+ int tmp;
+
+ __asm__ __volatile__ (
+ "cli %1;"
+ "NOP; NOP; SSYNC;"
+ "%0 = w [%2] (z);"
+ "sti %1;"
+ : "=d"(val), "=d"(tmp)
+ : "a"(addr)
+ );
+
+ return (unsigned short) val;
+}
+
+static inline unsigned int readl(const volatile void __iomem *addr)
+{
+ unsigned int val;
+ int tmp;
+
+ __asm__ __volatile__ (
+ "cli %1;"
+ "NOP; NOP; SSYNC;"
+ "%0 = [%2];"
+ "sti %1;"
+ : "=d"(val), "=d"(tmp)
+ : "a"(addr)
+ );
+
+ return val;
+}
+
+#endif /* __ASSEMBLY__ */
+
+#define writeb(b, addr) (void)((*(volatile unsigned char *) (addr)) = (b))
+#define writew(b, addr) (void)((*(volatile unsigned short *) (addr)) = (b))
+#define writel(b, addr) (void)((*(volatile unsigned int *) (addr)) = (b))
+
+#define __raw_readb readb
+#define __raw_readw readw
+#define __raw_readl readl
+#define __raw_writeb writeb
+#define __raw_writew writew
+#define __raw_writel writel
+#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))
+
+/* Convert "I/O port addresses" to actual addresses. i.e. ugly casts. */
+#define __io(port) ((void *)(unsigned long)(port))
+
+#define inb(port) readb(__io(port))
+#define inw(port) readw(__io(port))
+#define inl(port) readl(__io(port))
+#define in_le32(port) inl(port)
+#define outb(x, port) writeb(x, __io(port))
+#define outw(x, port) writew(x, __io(port))
+#define outl(x, port) writel(x, __io(port))
+#define out_le32(x, port) outl(x, port)
+
+#define inb_p(port) inb(__io(port))
+#define inw_p(port) inw(__io(port))
+#define inl_p(port) inl(__io(port))
+#define outb_p(x, port) outb(x, __io(port))
+#define outw_p(x, port) outw(x, __io(port))
+#define outl_p(x, port) outl(x, __io(port))
+
+#define ioread8_rep(a, d, c) readsb(a, d, c)
+#define ioread16_rep(a, d, c) readsw(a, d, c)
+#define ioread32_rep(a, d, c) readsl(a, d, c)
+#define iowrite8_rep(a, s, c) writesb(a, s, c)
+#define iowrite16_rep(a, s, c) writesw(a, s, c)
+#define iowrite32_rep(a, s, c) writesl(a, s, c)
+
+#define ioread8(x) readb(x)
+#define ioread16(x) readw(x)
+#define ioread32(x) readl(x)
+#define iowrite8(val, x) writeb(val, x)
+#define iowrite16(val, x) writew(val, x)
+#define iowrite32(val, x) writel(val, x)
+
+#define mmiowb() wmb()
+
+#ifndef __ASSEMBLY__
+
+extern void outsb(unsigned long port, const void *addr, unsigned long count);
+extern void outsw(unsigned long port, const void *addr, unsigned long count);
+extern void outsw_8(unsigned long port, const void *addr, unsigned long count);
+extern void outsl(unsigned long port, const void *addr, unsigned long count);
+
+extern void insb(unsigned long port, void *addr, unsigned long count);
+extern void insw(unsigned long port, void *addr, unsigned long count);
+extern void insw_8(unsigned long port, void *addr, unsigned long count);
+extern void insl(unsigned long port, void *addr, unsigned long count);
+extern void insl_16(unsigned long port, void *addr, unsigned long count);
+
+static inline void readsl(const void __iomem *addr, void *buf, int len)
+{
+ insl((unsigned long)addr, buf, len);
+}
+
+static inline void readsw(const void __iomem *addr, void *buf, int len)
+{
+ insw((unsigned long)addr, buf, len);
+}
+
+static inline void readsb(const void __iomem *addr, void *buf, int len)
+{
+ insb((unsigned long)addr, buf, len);
+}
+
+static inline void writesl(const void __iomem *addr, const void *buf, int len)
+{
+ outsl((unsigned long)addr, buf, len);
+}
+
+static inline void writesw(const void __iomem *addr, const void *buf, int len)
+{
+ outsw((unsigned long)addr, buf, len);
+}
+
+static inline void writesb(const void __iomem *addr, const void *buf, int len)
+{
+ outsb((unsigned long)addr, buf, len);
+}
+
+#if defined(CONFIG_STAMP_CF) || defined(CONFIG_BFIN_IDE)
+/* This hack for CF/IDE needs to be addressed at some point */
+extern void cf_outsw(unsigned short *addr, unsigned short *sect_buf, int words);
+extern void cf_insw(unsigned short *sect_buf, unsigned short *addr, int words);
+extern unsigned char cf_inb(volatile unsigned char *addr);
+extern void cf_outb(unsigned char val, volatile unsigned char *addr);
+#undef inb
+#undef outb
+#undef insw
+#undef outsw
+#define inb(addr) cf_inb((void *)(addr))
+#define outb(x, addr) cf_outb((unsigned char)(x), (void *)(addr))
+#define insw(port, addr, cnt) cf_insw((void *)(addr), (void *)(port), cnt)
+#define outsw(port, addr, cnt) cf_outsw((void *)(port), (void *)(addr), cnt)
+#endif
+
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif
Code Review / kvmfornfv.git / blobdiff