[TC] MIPS: TURBOchannel update to the driver model
This is a set of changes to convert support for the TURBOchannel bus to the
driver model. It implements the usual set of calls similar to what other bus
drivers have: tc_register_driver(), tc_unregister_driver(), etc. All the
platform-specific bits have been removed and headers from asm-mips/dec/ have
been merged into linux/tc.h, which should be included by drivers.
Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/include/asm-mips/dec/tc.h b/include/asm-mips/dec/tc.h
deleted file mode 100644
index 9cb51f2..0000000
--- a/include/asm-mips/dec/tc.h
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
- * Interface to the TURBOchannel related routines
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (c) 1998 Harald Koerfgen
- */
-#ifndef __ASM_DEC_TC_H
-#define __ASM_DEC_TC_H
-
-/*
- * Search for a TURBOchannel Option Module
- * with a certain name. Returns slot number
- * of the first card not in use or -ENODEV
- * if none found.
- */
-extern int search_tc_card(const char *);
-/*
- * Marks the card in slot as used
- */
-extern void claim_tc_card(int);
-/*
- * Marks the card in slot as free
- */
-extern void release_tc_card(int);
-/*
- * Return base address of card in slot
- */
-extern unsigned long get_tc_base_addr(int);
-/*
- * Return interrupt number of slot
- */
-extern unsigned long get_tc_irq_nr(int);
-/*
- * Return TURBOchannel clock frequency in Hz
- */
-extern unsigned long get_tc_speed(void);
-
-#endif /* __ASM_DEC_TC_H */
diff --git a/include/asm-mips/dec/tcinfo.h b/include/asm-mips/dec/tcinfo.h
deleted file mode 100644
index cc23509..0000000
--- a/include/asm-mips/dec/tcinfo.h
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
- * Various TURBOchannel related stuff
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Information obtained through the get_tcinfo prom call
- * created from:
- *
- * TURBOchannel Firmware Specification
- *
- * EK-TCAAD-FS-004
- * from Digital Equipment Corporation
- *
- * Copyright (c) 1998 Harald Koerfgen
- */
-
-typedef struct {
- int revision;
- int clk_period;
- int slot_size;
- int io_timeout;
- int dma_range;
- int max_dma_burst;
- int parity;
- int reserved[4];
-} tcinfo;
-
-#define MAX_SLOT 7
-
-typedef struct {
- unsigned long base_addr;
- unsigned char name[9];
- unsigned char vendor[9];
- unsigned char firmware[9];
- int interrupt;
- int flags;
-} slot_info;
-
-/*
- * Values for flags
- */
-#define FREE 1<<0
-#define IN_USE 1<<1
-
-
diff --git a/include/asm-mips/dec/tcmodule.h b/include/asm-mips/dec/tcmodule.h
deleted file mode 100644
index 6268e89..0000000
--- a/include/asm-mips/dec/tcmodule.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Offsets for the ROM header locations for
- * TURBOchannel cards
- *
- * created from:
- *
- * TURBOchannel Firmware Specification
- *
- * EK-TCAAD-FS-004
- * from Digital Equipment Corporation
- *
- * Jan.1998 Harald Koerfgen
- */
-#ifndef __ASM_DEC_TCMODULE_H
-#define __ASM_DEC_TCMODULE_H
-
-#define OLDCARD 0x3c0000
-#define NEWCARD 0x000000
-
-#define TC_ROM_WIDTH 0x3e0
-#define TC_ROM_STRIDE 0x3e4
-#define TC_ROM_SIZE 0x3e8
-#define TC_SLOT_SIZE 0x3ec
-#define TC_PATTERN0 0x3f0
-#define TC_PATTERN1 0x3f4
-#define TC_PATTERN2 0x3f8
-#define TC_PATTERN3 0x3fc
-#define TC_FIRM_VER 0x400
-#define TC_VENDOR 0x420
-#define TC_MODULE 0x440
-#define TC_FIRM_TYPE 0x460
-#define TC_FLAGS 0x470
-#define TC_ROM_OBJECTS 0x480
-
-#endif /* __ASM_DEC_TCMODULE_H */
diff --git a/include/linux/tc.h b/include/linux/tc.h
new file mode 100644
index 0000000..f92511e
--- /dev/null
+++ b/include/linux/tc.h
@@ -0,0 +1,141 @@
+/*
+ * Interface to the TURBOchannel related routines.
+ *
+ * Copyright (c) 1998 Harald Koerfgen
+ * Copyright (c) 2005 James Simmons
+ * Copyright (c) 2006 Maciej W. Rozycki
+ *
+ * Based on:
+ *
+ * "TURBOchannel Firmware Specification", EK-TCAAD-FS-004
+ *
+ * from Digital Equipment Corporation.
+ *
+ * This file is subject to the terms and conditions of the GNU
+ * General Public License. See the file "COPYING" in the main
+ * directory of this archive for more details.
+ */
+#ifndef _LINUX_TC_H
+#define _LINUX_TC_H
+
+#include <linux/compiler.h>
+#include <linux/device.h>
+#include <linux/ioport.h>
+#include <linux/types.h>
+
+/*
+ * Offsets for the ROM header locations for TURBOchannel cards.
+ */
+#define TC_OLDCARD 0x3c0000
+#define TC_NEWCARD 0x000000
+
+#define TC_ROM_WIDTH 0x3e0
+#define TC_ROM_STRIDE 0x3e4
+#define TC_ROM_SIZE 0x3e8
+#define TC_SLOT_SIZE 0x3ec
+#define TC_PATTERN0 0x3f0
+#define TC_PATTERN1 0x3f4
+#define TC_PATTERN2 0x3f8
+#define TC_PATTERN3 0x3fc
+#define TC_FIRM_VER 0x400
+#define TC_VENDOR 0x420
+#define TC_MODULE 0x440
+#define TC_FIRM_TYPE 0x460
+#define TC_FLAGS 0x470
+#define TC_ROM_OBJECTS 0x480
+
+/*
+ * Information obtained through the get_tcinfo() PROM call.
+ */
+struct tcinfo {
+ s32 revision; /* Hardware revision level. */
+ s32 clk_period; /* Clock period in nanoseconds. */
+ s32 slot_size; /* Slot size in megabytes. */
+ s32 io_timeout; /* I/O timeout in cycles. */
+ s32 dma_range; /* DMA address range in megabytes. */
+ s32 max_dma_burst; /* Maximum DMA burst length. */
+ s32 parity; /* System module supports TC parity. */
+ s32 reserved[4];
+};
+
+/*
+ * TURBOchannel bus.
+ */
+struct tc_bus {
+ struct list_head devices; /* List of devices on this bus. */
+ struct resource resource[2]; /* Address space routed to this bus. */
+
+ struct device dev;
+ char name[13];
+ resource_size_t slot_base;
+ resource_size_t ext_slot_base;
+ resource_size_t ext_slot_size;
+ int num_tcslots;
+ struct tcinfo info;
+};
+
+/*
+ * TURBOchannel device.
+ */
+struct tc_dev {
+ struct list_head node; /* Node in list of all TC devices. */
+ struct tc_bus *bus; /* Bus this device is on. */
+ struct tc_driver *driver; /* Which driver has allocated this
+ device. */
+ struct device dev; /* Generic device interface. */
+ struct resource resource; /* Address space of this device. */
+ char vendor[9];
+ char name[9];
+ char firmware[9];
+ int interrupt;
+ int slot;
+};
+
+#define to_tc_dev(n) container_of(n, struct tc_dev, dev)
+
+struct tc_device_id {
+ char vendor[9];
+ char name[9];
+};
+
+/*
+ * TURBOchannel driver.
+ */
+struct tc_driver {
+ struct list_head node;
+ const struct tc_device_id *id_table;
+ struct device_driver driver;
+};
+
+#define to_tc_driver(drv) container_of(drv, struct tc_driver, driver)
+
+/*
+ * Return TURBOchannel clock frequency in Hz.
+ */
+static inline unsigned long tc_get_speed(struct tc_bus *tbus)
+{
+ return 100000 * (10000 / (unsigned long)tbus->info.clk_period);
+}
+
+#ifdef CONFIG_TC
+
+extern struct bus_type tc_bus_type;
+
+extern int tc_register_driver(struct tc_driver *tdrv);
+extern void tc_unregister_driver(struct tc_driver *tdrv);
+
+#else /* !CONFIG_TC */
+
+static inline int tc_register_driver(struct tc_driver *tdrv) { return 0; }
+static inline void tc_unregister_driver(struct tc_driver *tdrv) { }
+
+#endif /* CONFIG_TC */
+
+/*
+ * These have to be provided by the architecture.
+ */
+extern int tc_preadb(u8 *valp, void __iomem *addr);
+extern int tc_bus_get_info(struct tc_bus *tbus);
+extern void tc_device_get_irq(struct tc_dev *tdev);
+
+#endif /* _LINUX_TC_H */