?? cats-hw.c
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/* * 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);?? 快捷鍵說明
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