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Diffstat (limited to 'include/asm-arm/arch-sa1100/ide.h')
-rw-r--r--include/asm-arm/arch-sa1100/ide.h76
1 files changed, 76 insertions, 0 deletions
diff --git a/include/asm-arm/arch-sa1100/ide.h b/include/asm-arm/arch-sa1100/ide.h
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index 000000000000..2153538069c7
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+++ b/include/asm-arm/arch-sa1100/ide.h
@@ -0,0 +1,76 @@
+/*
+ * 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
+ }
+}