patch-2.4.23 linux-2.4.23/drivers/ide/legacy/sibyte.c
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- Lines: 80
- Date:
2003-11-28 10:26:20.000000000 -0800
- Orig file:
linux-2.4.22/drivers/ide/legacy/sibyte.c
- Orig date:
1969-12-31 16:00:00.000000000 -0800
diff -urN linux-2.4.22/drivers/ide/legacy/sibyte.c linux-2.4.23/drivers/ide/legacy/sibyte.c
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2001, 2002, 2003 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/* Derived loosely from ide-pmac.c, so:
+ *
+ * Copyright (C) 1998 Paul Mackerras.
+ * Copyright (C) 1995-1998 Mark Lord
+ */
+#include <linux/kernel.h>
+#include <linux/ide.h>
+
+#include <asm/sibyte/board.h>
+
+#define SIBYTE_IDE_BASE (IO_SPACE_BASE + IDE_PHYS - mips_io_port_base)
+#define SIBYTE_IDE_REG(pcaddr) (SIBYTE_IDE_BASE + ((pcaddr) << 5))
+
+extern void sibyte_set_ideops(ide_hwif_t *hwif);
+
+void __init sibyte_ide_probe(void)
+{
+ int i;
+ ide_hwif_t *hwif = NULL;
+
+ /*
+ * Find the first untaken slot in hwifs. Also set the io ops
+ * to the non-swapping SiByte versions. XXXKW It would be
+ * nice to find a safe place to do this outside of
+ * ide-sibyte.c so PCI-IDE would work without the SiByte
+ * driver.
+ */
+ for (i = 0; i < MAX_HWIFS; i++) {
+ sibyte_set_ideops(&ide_hwifs[i]);
+ if (!ide_hwifs[i].io_ports[IDE_DATA_OFFSET] && (hwif == NULL)) {
+ hwif = &ide_hwifs[i];
+ }
+ }
+ if (hwif == NULL) {
+ printk("No space for SiByte onboard IDE driver in ide_hwifs[]. Not enabled.\n");
+ return;
+ }
+
+ /*
+ * Set up our stuff; we're a little odd because our io_ports
+ * aren't in the usual place, and byte-swapping isn't
+ * necessary.
+ */
+ hwif->hw.io_ports[IDE_DATA_OFFSET] = SIBYTE_IDE_REG(0x1f0);
+ hwif->hw.io_ports[IDE_ERROR_OFFSET] = SIBYTE_IDE_REG(0x1f1);
+ hwif->hw.io_ports[IDE_NSECTOR_OFFSET] = SIBYTE_IDE_REG(0x1f2);
+ hwif->hw.io_ports[IDE_SECTOR_OFFSET] = SIBYTE_IDE_REG(0x1f3);
+ hwif->hw.io_ports[IDE_LCYL_OFFSET] = SIBYTE_IDE_REG(0x1f4);
+ hwif->hw.io_ports[IDE_HCYL_OFFSET] = SIBYTE_IDE_REG(0x1f5);
+ hwif->hw.io_ports[IDE_SELECT_OFFSET] = SIBYTE_IDE_REG(0x1f6);
+ hwif->hw.io_ports[IDE_STATUS_OFFSET] = SIBYTE_IDE_REG(0x1f7);
+ hwif->hw.io_ports[IDE_CONTROL_OFFSET] = SIBYTE_IDE_REG(0x3f6);
+ hwif->hw.irq = K_INT_GB_IDE;
+ hwif->irq = hwif->hw.irq;
+ hwif->noprobe = 0;
+ hwif->hw.ack_intr = NULL;
+ hwif->mmio = 2;
+
+ memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->io_ports));
+ printk(KERN_INFO "SiByte onboard IDE configured as device %i\n", hwif-ide_hwifs);
+}
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