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