patch-2.4.22 linux-2.4.22/include/asm-arm/arch-omaha/ide.h

• Lines: 64
• Date: 2003-08-25 04:44:43.000000000 -0700
• Orig file: linux-2.4.21/include/asm-arm/arch-omaha/ide.h
• Orig date: 1969-12-31 16:00:00.000000000 -0800

diff -urN linux-2.4.21/include/asm-arm/arch-omaha/ide.h linux-2.4.22/include/asm-arm/arch-omaha/ide.h
@@ -0,0 +1,63 @@
+/*
+ * linux/include/asm-arm/arch-omaha/ide.h
+ *
+ * Copyright (c) 2002 ARM Limited.
+ * Copyright (c) 2000 Steve Hill (sjhill@cotw.com)
+ *
+ * Changelog:
+ *  03-29-2000	SJH	Created file placeholder
+ */
+#include <linux/config.h>
+#include <asm/irq.h>
+#include <asm/system.h>
+#include <asm/arch/hardware.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;
+	int i;
+	int regincr = 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;
+
+		/* Special location in nCS2 for data register, as
+		 * we need to be able to do 16-bit r/w.
+		 */
+
+		if(i == IDE_DATA_OFFSET)
+			hw->io_ports[i] = reg + 0x04000000;
+
+		reg += regincr;
+	}
+	
+	hw->io_ports[IDE_CONTROL_OFFSET] = (ide_ioreg_t) ctrl_port;
+	
+	if(irq)
+		*irq = 1;
+}
+
+/*
+ * This registers the standard ports for this architecture with the IDE
+ * driver.
+ */
+static __inline__ void
+ide_init_default_hwifs(void)
+{
+        hw_regs_t hw;
+	
+        /* init the interface */
+	ide_init_hwif_ports(&hw, IO_ADDRESS(0x01C00000), IO_ADDRESS(0x01C00006), NULL);
+        hw.irq = 1;	// pld irq really
+        ide_register_hw(&hw, NULL);
+}