ide: add IDE_HFLAG_SERIALIZE_DMA host flag

[safe/jmp/linux-2.6] / drivers / ide / pci / cmd640.c

diff --git a/drivers/ide/pci/cmd640.c b/drivers/ide/pci/cmd640.c
index de1bbdc..25c2f1b 100644 (file)
--- a/drivers/ide/pci/cmd640.c
+++ b/drivers/ide/pci/cmd640.c
@@ -109,6 +109,8 @@
 
 #include <asm/io.h>
 
+#define DRV_NAME "cmd640"
+
 /*
  * This flag is set in ide.c by the parameter:  ide0=cmd640_vlb
  */
@@ -686,6 +688,24 @@ static const struct ide_port_info cmd640_port_info __initdata = {
 #endif
 };
 
+static int cmd640x_init_one(unsigned long base, unsigned long ctl)
+{
+       if (!request_region(base, 8, DRV_NAME)) {
+               printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n",
+                               DRV_NAME, base, base + 7);
+               return -EBUSY;
+       }
+
+       if (!request_region(ctl, 1, DRV_NAME)) {
+               printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n",
+                               DRV_NAME, ctl);
+               release_region(base, 8);
+               return -EBUSY;
+       }
+
+       return 0;
+}
+
 /*
  * Probe for a cmd640 chipset, and initialize it if found.
  */
@@ -694,7 +714,7 @@ static int __init cmd640x_init(void)
 #ifdef CONFIG_BLK_DEV_CMD640_ENHANCED
        int second_port_toggled = 0;
 #endif /* CONFIG_BLK_DEV_CMD640_ENHANCED */
-       int second_port_cmd640 = 0;
+       int second_port_cmd640 = 0, rc;
        const char *bus_type, *port2;
        unsigned int index;
        u8 b, cfr;
@@ -738,6 +758,17 @@ static int __init cmd640x_init(void)
                return 0;
        }
 
+       rc = cmd640x_init_one(0x1f0, 0x3f6);
+       if (rc)
+               return rc;
+
+       rc = cmd640x_init_one(0x170, 0x376);
+       if (rc) {
+               release_region(0x3f6, 1);
+               release_region(0x1f0, 8);
+               return rc;
+       }
+
        memset(&hw, 0, sizeof(hw));
 
        ide_std_init_ports(&hw[0], 0x1f0, 0x3f6);
@@ -756,7 +787,6 @@ static int __init cmd640x_init(void)
         */
        if (cmd_hwif0) {
                ide_init_port_hw(cmd_hwif0, &hw[0]);
-
                idx[0] = cmd_hwif0->index;
        }
 
@@ -809,7 +839,6 @@ static int __init cmd640x_init(void)
         */
        if (second_port_cmd640 && cmd_hwif1) {
                ide_init_port_hw(cmd_hwif1, &hw[1]);
-
                idx[1] = cmd_hwif1->index;
        }
        printk(KERN_INFO "cmd640: %sserialized, secondary interface %s\n",