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authorYoshinori Sato <ysato@users.sourceforge.jp>2006-11-05 16:21:09 +0900
committerPaul Mundt <lethal@linux-sh.org>2006-12-06 10:45:37 +0900
commitf36af3fd377081d3ac2ff6b63a60f8db8b3bf531 (patch)
tree04704043666c5fdc0b8db91a640eaf694f61803e /arch/sh/boards/se/7206/io.c
parentb229632abd451ab2c797010b9788e48c9314db4f (diff)
downloadlinux-2.6.34-ux500-f36af3fd377081d3ac2ff6b63a60f8db8b3bf531.tar.gz
sh: Add support for Solution Engine 7206 and 7619 boards.
This adds support for the Solution Engine 7206 and 7619. Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/boards/se/7206/io.c')
-rw-r--r--arch/sh/boards/se/7206/io.c123
1 files changed, 123 insertions, 0 deletions
diff --git a/arch/sh/boards/se/7206/io.c b/arch/sh/boards/se/7206/io.c
new file mode 100644
index 00000000000..b557273e0cb
--- /dev/null
+++ b/arch/sh/boards/se/7206/io.c
@@ -0,0 +1,123 @@
+/* $Id: io.c,v 1.5 2004/02/22 23:08:43 kkojima Exp $
+ *
+ * linux/arch/sh/boards/se/7206/io.c
+ *
+ * Copyright (C) 2006 Yoshinori Sato
+ *
+ * I/O routine for Hitachi 7206 SolutionEngine.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <asm/io.h>
+#include <asm/se7206.h>
+
+
+static inline void delay(void)
+{
+ ctrl_inw(0x20000000); /* P2 ROM Area */
+}
+
+/* MS7750 requires special versions of in*, out* routines, since
+ PC-like io ports are located at upper half byte of 16-bit word which
+ can be accessed only with 16-bit wide. */
+
+static inline volatile __u16 *
+port2adr(unsigned int port)
+{
+ if (port >= 0x2000)
+ return (volatile __u16 *) (PA_MRSHPC + (port - 0x2000));
+ else if (port >= 0x300 || port < 0x310)
+ return (volatile __u16 *) (PA_SMSC + (port - 0x300));
+}
+
+unsigned char se7206_inb(unsigned long port)
+{
+ return (*port2adr(port))&0xff;
+}
+
+unsigned char se7206_inb_p(unsigned long port)
+{
+ unsigned long v;
+
+ v = (*port2adr(port))&0xff;
+ delay();
+ return v;
+}
+
+unsigned short se7206_inw(unsigned long port)
+{
+ return *port2adr(port);;
+}
+
+unsigned int se7206_inl(unsigned long port)
+{
+ maybebadio(port);
+ return 0;
+}
+
+void se7206_outb(unsigned char value, unsigned long port)
+{
+ *(port2adr(port)) = value;
+}
+
+void se7206_outb_p(unsigned char value, unsigned long port)
+{
+ *(port2adr(port)) = value;
+ delay();
+}
+
+void se7206_outw(unsigned short value, unsigned long port)
+{
+ *port2adr(port) = value;
+}
+
+void se7206_outl(unsigned int value, unsigned long port)
+{
+ maybebadio(port);
+}
+
+void se7206_insb(unsigned long port, void *addr, unsigned long count)
+{
+ volatile __u16 *p = port2adr(port);
+ __u8 *ap = addr;
+
+ while (count--)
+ *ap++ = *p;
+}
+
+void se7206_insw(unsigned long port, void *addr, unsigned long count)
+{
+ volatile __u16 *p = port2adr(port);
+ __u16 *ap = addr;
+ while (count--)
+ *ap++ = *p;
+}
+
+void se7206_insl(unsigned long port, void *addr, unsigned long count)
+{
+ maybebadio(port);
+}
+
+void se7206_outsb(unsigned long port, const void *addr, unsigned long count)
+{
+ volatile __u16 *p = port2adr(port);
+ const __u8 *ap = addr;
+
+ while (count--)
+ *p = *ap++;
+}
+
+void se7206_outsw(unsigned long port, const void *addr, unsigned long count)
+{
+ volatile __u16 *p = port2adr(port);
+ const __u16 *ap = addr;
+ while (count--)
+ *p = *ap++;
+}
+
+void se7206_outsl(unsigned long port, const void *addr, unsigned long count)
+{
+ maybebadio(port);
+}