ide.h
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上传日期:2009-04-28
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- /*
- * linux/include/asm-arm/arch-sa1100/ide.h
- *
- * Copyright (c) 1998 Hugo Fiennes & Nicolas Pitre
- *
- * 18-aug-2000: Cleanup by Erik Mouw (J.A.K.Mouw@its.tudelft.nl)
- * Get rid of the special ide_init_hwif_ports() functions
- * and make a generalised function that can be used by all
- * architectures.
- */
- #include <linux/config.h>
- #include <asm/irq.h>
- #include <asm/hardware.h>
- #include <asm/mach-types.h>
- #error "This code is broken and needs update to match with current ide support"
- /*
- * 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, unsigned long data_port,
- unsigned long ctrl_port, int *irq)
- {
- unsigned long reg = data_port;
- int i;
- int regincr = 1;
- /* The Empeg board has the first two address lines unused */
- if (machine_is_empeg())
- regincr = 1 << 2;
- /* The LART doesn't use A0 for IDE */
- if (machine_is_lart())
- regincr = 1 << 1;
- memset(hw, 0, sizeof(*hw));
- for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
- hw->io_ports[i] = reg;
- reg += regincr;
- }
- hw->io_ports[IDE_CONTROL_OFFSET] = 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_lart()) {
- #ifdef CONFIG_SA1100_LART
- hw_regs_t hw;
- /* Enable GPIO as interrupt line */
- GPDR &= ~LART_GPIO_IDE;
- set_irq_type(LART_IRQ_IDE, IRQT_RISING);
- /* set PCMCIA interface timing */
- MECR = 0x00060006;
- /* init the interface */
- ide_init_hwif_ports(&hw, PCMCIA_IO_0_BASE + 0x0000, PCMCIA_IO_0_BASE + 0x1000, NULL);
- hw.irq = LART_IRQ_IDE;
- ide_register_hw(&hw);
- #endif
- }
- }