diff options
Diffstat (limited to 'arch/alpha/kernel/ns87312.c')
| -rw-r--r-- | arch/alpha/kernel/ns87312.c | 38 |
1 files changed, 0 insertions, 38 deletions
diff --git a/arch/alpha/kernel/ns87312.c b/arch/alpha/kernel/ns87312.c deleted file mode 100644 index 342b56d24c20..000000000000 --- a/arch/alpha/kernel/ns87312.c +++ /dev/null @@ -1,38 +0,0 @@ -/* - * linux/arch/alpha/kernel/ns87312.c - */ - -#include <linux/init.h> -#include <asm/io.h> -#include "proto.h" - - -/* - * The SRM console *disables* the IDE interface, this code ensures it's - * enabled. - * - * This code bangs on a control register of the 87312 Super I/O chip - * that implements parallel port/serial ports/IDE/FDI. Depending on - * the motherboard, the Super I/O chip can be configured through a - * pair of registers that are located either at I/O ports 0x26e/0x26f - * or 0x398/0x399. Unfortunately, autodetecting which base address is - * in use works only once (right after a reset). The Super I/O chip - * has the additional quirk that configuration register data must be - * written twice (I believe this is a safety feature to prevent - * accidental modification---fun, isn't it?). - */ - -void __init -ns87312_enable_ide(long ide_base) -{ - int data; - unsigned long flags; - - local_irq_save(flags); - outb(0, ide_base); /* set the index register for reg #0 */ - data = inb(ide_base+1); /* read the current contents */ - outb(0, ide_base); /* set the index register for reg #0 */ - outb(data | 0x40, ide_base+1); /* turn on IDE */ - outb(data | 0x40, ide_base+1); /* turn on IDE, really! */ - local_irq_restore(flags); -} |