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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>
#define PCMCIA_IO_0_BASE 0xe0000000
#define PCMCIA_IO_1_BASE 0xe4000000
/*
* 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;
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));
reg = (ide_ioreg_t)data_port;
for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
hw->io_ports[i] = reg;
reg += regincr;
}
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_empeg() ){
#ifdef CONFIG_SA1100_EMPEG
hw_regs_t hw;
/* First, do the SA1100 setup */
/* PCMCIA IO space */
MECR=0x21062106;
/* Issue 3 is much neater than issue 2 */
GPDR&=~(EMPEG_IDE1IRQ|EMPEG_IDE2IRQ);
/* Interrupts on rising edge: lines are inverted before they get to
the SA */
set_GPIO_IRQ_edge( (EMPEG_IDE1IRQ|EMPEG_IDE2IRQ), GPIO_FALLING_EDGE );
/* Take hard drives out of reset */
GPSR=(EMPEG_IDERESET);
/* Sonja and her successors have two IDE ports. */
/* MAC 23/4/1999, swap these round so that the left hand
hard disk is hda when viewed from the front. This
doesn't match the silkscreen however. */
ide_init_hwif_ports(&hw, PCMCIA_IO_0_BASE + 0x40, PCMCIA_IO_0_BASE + 0x78, NULL);
hw.irq = EMPEG_IRQ_IDE2;
ide_register_hw(&hw, NULL);
ide_init_hwif_ports(&hw, PCMCIA_IO_0_BASE + 0x00, PCMCIA_IO_0_BASE + 0x38, NULL);
hw.irq = ,EMPEG_IRQ_IDE1;
ide_register_hw(&hw, NULL);
#endif
}
else if( machine_is_victor() ){
#ifdef CONFIG_SA1100_VICTOR
hw_regs_t hw;
/* Enable appropriate GPIOs as interrupt lines */
GPDR &= ~GPIO_GPIO7;
set_GPIO_IRQ_edge( GPIO_GPIO7, GPIO_RISING_EDGE );
/* set the pcmcia interface timing */
MECR = 0x00060006;
ide_init_hwif_ports(&hw, PCMCIA_IO_0_BASE + 0x1f0, PCMCIA_IO_0_BASE + 0x3f6, NULL);
hw.irq = IRQ_GPIO7;
ide_register_hw(&hw, NULL);
#endif
}
else if (machine_is_lart()) {
#ifdef CONFIG_SA1100_LART
hw_regs_t hw;
/* Enable GPIO as interrupt line */
GPDR &= ~GPIO_GPIO1;
set_GPIO_IRQ_edge(GPIO_GPIO1, GPIO_RISING_EDGE);
/* 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 = IRQ_GPIO1;
ide_register_hw(&hw, NULL);
#endif
}
}
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