ide.h
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上传日期:2013-04-10
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- /*
- * linux/include/asm-arm/arch-arc/ide.h
- *
- * Copyright (C) 1997,1998 Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * IDE definitions for the Acorn Archimedes/A5000
- * architecture
- *
- * Modifications:
- * 04-04-1998 PJB Merged `arc' and `a5k' versions
- * 01-07-1998 RMK Added new ide_ioregspec_t
- * 29-07-1998 RMK Major re-work of IDE architecture specific code
- */
- #include <asm/irq.h>
- #include <asm/mach-types.h>
- /*
- * Set up a hw structure for a specified data port, control port and IRQ.
- * This should follow whatever the default interface uses.
- */
- static __inline__ void
- ide_init_hwif_ports(hw_regs_t *hw, int data_port, int ctrl_port, int *irq)
- {
- ide_ioreg_t reg = (ide_ioreg_t) data_port;
- int i;
- for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
- hw->io_ports[i] = reg;
- reg += 1;
- }
- hw->io_ports[IDE_CONTROL_OFFSET] = (ide_ioreg_t) ctrl_port;
- if (irq)
- *irq = 0;
- }
- /*
- * This registers the standard ports for this architecture with the IDE
- * driver.
- */
- static __inline__ void ide_init_default_hwifs(void)
- {
- if (machine_is_a5k()) {
- hw_regs_t hw;
- memset(&hw, 0, sizeof(hw));
- ide_init_hwif_ports(&hw, 0x1f0, 0x3f6, NULL);
- hw.irq = IRQ_HARDDISK;
- ide_register_hw(&hw, NULL);
- }
- }