cats-hw.c
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:1k
- /*
- * linux/arch/arm/mach-footbridge/cats-hw.c
- *
- * CATS machine fixup
- *
- * Copyright (C) 1998, 1999 Russell King, Phil Blundell
- */
- #include <linux/sched.h>
- #include <linux/ioport.h>
- #include <linux/kernel.h>
- #include <linux/init.h>
- #include <asm/io.h>
- #include <asm/mach-types.h>
- #define CFG_PORT 0x370
- #define INDEX_PORT (CFG_PORT)
- #define DATA_PORT (CFG_PORT + 1)
- static int __init cats_hw_init(void)
- {
- if (machine_is_cats()) {
- /* Set Aladdin to CONFIGURE mode */
- outb(0x51, CFG_PORT);
- outb(0x23, CFG_PORT);
- /* Select logical device 3 */
- outb(0x07, INDEX_PORT);
- outb(0x03, DATA_PORT);
- /* Set parallel port to DMA channel 3, ECP+EPP1.9,
- enable EPP timeout */
- outb(0x74, INDEX_PORT);
- outb(0x03, DATA_PORT);
-
- outb(0xf0, INDEX_PORT);
- outb(0x0f, DATA_PORT);
- outb(0xf1, INDEX_PORT);
- outb(0x07, DATA_PORT);
- /* Select logical device 4 */
- outb(0x07, INDEX_PORT);
- outb(0x04, DATA_PORT);
- /* UART1 high speed mode */
- outb(0xf0, INDEX_PORT);
- outb(0x02, DATA_PORT);
- /* Select logical device 5 */
- outb(0x07, INDEX_PORT);
- outb(0x05, DATA_PORT);
- /* UART2 high speed mode */
- outb(0xf0, INDEX_PORT);
- outb(0x02, DATA_PORT);
- /* Set Aladdin to RUN mode */
- outb(0xbb, CFG_PORT);
- }
- return 0;
- }
- __initcall(cats_hw_init);