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authorPaul Mundt <lethal@linux-sh.org>2008-07-29 21:01:19 +0900
committerPaul Mundt <lethal@linux-sh.org>2008-07-29 21:01:19 +0900
commitda2014a2b080e7f3024a4eb6917d47069ad9620b (patch)
treecfde12c6d4b5baa222966b14a676f107992cf786 /arch/sh/boards/mach-se/7751/io.c
parentsh: dma-sh: Fix up dreamcast dma.h mach path. (diff)
downloadlinux-dev-da2014a2b080e7f3024a4eb6917d47069ad9620b.tar.xz
linux-dev-da2014a2b080e7f3024a4eb6917d47069ad9620b.zip
sh: Shuffle the board directories in to mach groups.
This flattens out the board directories in to individual mach groups, we will use this for getting rid of unneeded directories, simplifying the build system, and becoming more coherent with the refactored arch/sh/include topology. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/boards/mach-se/7751/io.c')
-rw-r--r--arch/sh/boards/mach-se/7751/io.c135
1 files changed, 135 insertions, 0 deletions
diff --git a/arch/sh/boards/mach-se/7751/io.c b/arch/sh/boards/mach-se/7751/io.c
new file mode 100644
index 000000000000..e8d846cec89d
--- /dev/null
+++ b/arch/sh/boards/mach-se/7751/io.c
@@ -0,0 +1,135 @@
+/*
+ * Copyright (C) 2001 Ian da Silva, Jeremy Siegel
+ * Based largely on io_se.c.
+ *
+ * I/O routine for Hitachi 7751 SolutionEngine.
+ *
+ * Initial version only to support LAN access; some
+ * placeholder code from io_se.c left in with the
+ * expectation of later SuperIO and PCMCIA access.
+ */
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <asm/io.h>
+#include <asm/se7751.h>
+#include <asm/addrspace.h>
+
+static inline volatile u16 *port2adr(unsigned int port)
+{
+ if (port >= 0x2000)
+ return (volatile __u16 *) (PA_MRSHPC + (port - 0x2000));
+ maybebadio((unsigned long)port);
+ return (volatile __u16*)port;
+}
+
+/*
+ * General outline: remap really low stuff [eventually] to SuperIO,
+ * stuff in PCI IO space (at or above window at pci.h:PCIBIOS_MIN_IO)
+ * is mapped through the PCI IO window. Stuff with high bits (PXSEG)
+ * should be way beyond the window, and is used w/o translation for
+ * compatibility.
+ */
+unsigned char sh7751se_inb(unsigned long port)
+{
+ if (PXSEG(port))
+ return *(volatile unsigned char *)port;
+ else if (is_pci_ioaddr(port))
+ return *(volatile unsigned char *)pci_ioaddr(port);
+ else
+ return (*port2adr(port)) & 0xff;
+}
+
+unsigned char sh7751se_inb_p(unsigned long port)
+{
+ unsigned char v;
+
+ if (PXSEG(port))
+ v = *(volatile unsigned char *)port;
+ else if (is_pci_ioaddr(port))
+ v = *(volatile unsigned char *)pci_ioaddr(port);
+ else
+ v = (*port2adr(port)) & 0xff;
+ ctrl_delay();
+ return v;
+}
+
+unsigned short sh7751se_inw(unsigned long port)
+{
+ if (PXSEG(port))
+ return *(volatile unsigned short *)port;
+ else if (is_pci_ioaddr(port))
+ return *(volatile unsigned short *)pci_ioaddr(port);
+ else if (port >= 0x2000)
+ return *port2adr(port);
+ else
+ maybebadio(port);
+ return 0;
+}
+
+unsigned int sh7751se_inl(unsigned long port)
+{
+ if (PXSEG(port))
+ return *(volatile unsigned long *)port;
+ else if (is_pci_ioaddr(port))
+ return *(volatile unsigned int *)pci_ioaddr(port);
+ else if (port >= 0x2000)
+ return *port2adr(port);
+ else
+ maybebadio(port);
+ return 0;
+}
+
+void sh7751se_outb(unsigned char value, unsigned long port)
+{
+
+ if (PXSEG(port))
+ *(volatile unsigned char *)port = value;
+ else if (is_pci_ioaddr(port))
+ *((unsigned char*)pci_ioaddr(port)) = value;
+ else
+ *(port2adr(port)) = value;
+}
+
+void sh7751se_outb_p(unsigned char value, unsigned long port)
+{
+ if (PXSEG(port))
+ *(volatile unsigned char *)port = value;
+ else if (is_pci_ioaddr(port))
+ *((unsigned char*)pci_ioaddr(port)) = value;
+ else
+ *(port2adr(port)) = value;
+ ctrl_delay();
+}
+
+void sh7751se_outw(unsigned short value, unsigned long port)
+{
+ if (PXSEG(port))
+ *(volatile unsigned short *)port = value;
+ else if (is_pci_ioaddr(port))
+ *((unsigned short *)pci_ioaddr(port)) = value;
+ else if (port >= 0x2000)
+ *port2adr(port) = value;
+ else
+ maybebadio(port);
+}
+
+void sh7751se_outl(unsigned int value, unsigned long port)
+{
+ if (PXSEG(port))
+ *(volatile unsigned long *)port = value;
+ else if (is_pci_ioaddr(port))
+ *((unsigned long*)pci_ioaddr(port)) = value;
+ else
+ maybebadio(port);
+}
+
+void sh7751se_insl(unsigned long port, void *addr, unsigned long count)
+{
+ maybebadio(port);
+}
+
+void sh7751se_outsl(unsigned long port, const void *addr, unsigned long count)
+{
+ maybebadio(port);
+}