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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/sh/cchips/hd6446x/hd64461/io.c
downloadlinux-stericsson-9e734775f7c22d2f89943ad6c745571f1930105f.tar.gz
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/sh/cchips/hd6446x/hd64461/io.c')
-rw-r--r--arch/sh/cchips/hd6446x/hd64461/io.c157
1 files changed, 157 insertions, 0 deletions
diff --git a/arch/sh/cchips/hd6446x/hd64461/io.c b/arch/sh/cchips/hd6446x/hd64461/io.c
new file mode 100644
index 000000000000..4c062d6b7a97
--- /dev/null
+++ b/arch/sh/cchips/hd6446x/hd64461/io.c
@@ -0,0 +1,157 @@
+/*
+ * $Id: io.c,v 1.6 2004/03/16 00:07:50 lethal Exp $
+ * Copyright (C) 2000 YAEGASHI Takeshi
+ * Typical I/O routines for HD64461 system.
+ */
+
+#include <linux/config.h>
+#include <asm/io.h>
+#include <asm/hd64461/hd64461.h>
+
+#define MEM_BASE (CONFIG_HD64461_IOBASE - HD64461_STBCR)
+
+static __inline__ unsigned long PORT2ADDR(unsigned long port)
+{
+ /* 16550A: HD64461 internal */
+ if (0x3f8<=port && port<=0x3ff)
+ return CONFIG_HD64461_IOBASE + 0x8000 + ((port-0x3f8)<<1);
+ if (0x2f8<=port && port<=0x2ff)
+ return CONFIG_HD64461_IOBASE + 0x7000 + ((port-0x2f8)<<1);
+
+#ifdef CONFIG_HD64461_ENABLER
+ /* NE2000: HD64461 PCMCIA channel 0 (I/O) */
+ if (0x300<=port && port<=0x31f)
+ return 0xba000000 + port;
+
+ /* ide0: HD64461 PCMCIA channel 1 (memory) */
+ /* On HP690, CF in slot 1 is configured as a memory card
+ device. See CF+ and CompactFlash Specification for the
+ detail of CF's memory mapped addressing. */
+ if (0x1f0<=port && port<=0x1f7) return 0xb5000000 + port;
+ if (port == 0x3f6) return 0xb50001fe;
+ if (port == 0x3f7) return 0xb50001ff;
+
+ /* ide1 */
+ if (0x170<=port && port<=0x177) return 0xba000000 + port;
+ if (port == 0x376) return 0xba000376;
+ if (port == 0x377) return 0xba000377;
+#endif
+
+ /* ??? */
+ if (port < 0xf000) return 0xa0000000 + port;
+ /* PCMCIA channel 0, I/O (0xba000000) */
+ if (port < 0x10000) return 0xba000000 + port - 0xf000;
+
+ /* HD64461 internal devices (0xb0000000) */
+ if (port < 0x20000) return CONFIG_HD64461_IOBASE + port - 0x10000;
+
+ /* PCMCIA channel 0, I/O (0xba000000) */
+ if (port < 0x30000) return 0xba000000 + port - 0x20000;
+
+ /* PCMCIA channel 1, memory (0xb5000000) */
+ if (port < 0x40000) return 0xb5000000 + port - 0x30000;
+
+ /* Whole physical address space (0xa0000000) */
+ return 0xa0000000 + (port & 0x1fffffff);
+}
+
+static inline void delay(void)
+{
+ ctrl_inw(0xa0000000);
+}
+
+unsigned char hd64461_inb(unsigned long port)
+{
+ return *(volatile unsigned char*)PORT2ADDR(port);
+}
+
+unsigned char hd64461_inb_p(unsigned long port)
+{
+ unsigned long v = *(volatile unsigned char*)PORT2ADDR(port);
+ delay();
+ return v;
+}
+
+unsigned short hd64461_inw(unsigned long port)
+{
+ return *(volatile unsigned short*)PORT2ADDR(port);
+}
+
+unsigned int hd64461_inl(unsigned long port)
+{
+ return *(volatile unsigned long*)PORT2ADDR(port);
+}
+
+void hd64461_outb(unsigned char b, unsigned long port)
+{
+ *(volatile unsigned char*)PORT2ADDR(port) = b;
+}
+
+void hd64461_outb_p(unsigned char b, unsigned long port)
+{
+ *(volatile unsigned char*)PORT2ADDR(port) = b;
+ delay();
+}
+
+void hd64461_outw(unsigned short b, unsigned long port)
+{
+ *(volatile unsigned short*)PORT2ADDR(port) = b;
+}
+
+void hd64461_outl(unsigned int b, unsigned long port)
+{
+ *(volatile unsigned long*)PORT2ADDR(port) = b;
+}
+
+void hd64461_insb(unsigned long port, void *buffer, unsigned long count)
+{
+ volatile unsigned char* addr=(volatile unsigned char*)PORT2ADDR(port);
+ unsigned char *buf=buffer;
+ while(count--) *buf++=*addr;
+}
+
+void hd64461_insw(unsigned long port, void *buffer, unsigned long count)
+{
+ volatile unsigned short* addr=(volatile unsigned short*)PORT2ADDR(port);
+ unsigned short *buf=buffer;
+ while(count--) *buf++=*addr;
+}
+
+void hd64461_insl(unsigned long port, void *buffer, unsigned long count)
+{
+ volatile unsigned long* addr=(volatile unsigned long*)PORT2ADDR(port);
+ unsigned long *buf=buffer;
+ while(count--) *buf++=*addr;
+}
+
+void hd64461_outsb(unsigned long port, const void *buffer, unsigned long count)
+{
+ volatile unsigned char* addr=(volatile unsigned char*)PORT2ADDR(port);
+ const unsigned char *buf=buffer;
+ while(count--) *addr=*buf++;
+}
+
+void hd64461_outsw(unsigned long port, const void *buffer, unsigned long count)
+{
+ volatile unsigned short* addr=(volatile unsigned short*)PORT2ADDR(port);
+ const unsigned short *buf=buffer;
+ while(count--) *addr=*buf++;
+}
+
+void hd64461_outsl(unsigned long port, const void *buffer, unsigned long count)
+{
+ volatile unsigned long* addr=(volatile unsigned long*)PORT2ADDR(port);
+ const unsigned long *buf=buffer;
+ while(count--) *addr=*buf++;
+}
+
+unsigned short hd64461_readw(unsigned long addr)
+{
+ return *(volatile unsigned short*)(MEM_BASE+addr);
+}
+
+void hd64461_writew(unsigned short b, unsigned long addr)
+{
+ *(volatile unsigned short*)(MEM_BASE+addr) = b;
+}
+