/* * linux/arch/arm/mach-footbridge/cats-hw.c * * CATS machine fixup * * Copyright (C) 1998, 1999 Russell King, Phil Blundell */ #include <linux/ioport.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/screen_info.h> #include <asm/hardware/dec21285.h> #include <asm/io.h> #include <asm/mach-types.h> #include <asm/setup.h> #include <asm/mach/arch.h> #include "common.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); /* * CATS uses soft-reboot by default, since * hard reboots fail on early boards. */ static void __init fixup_cats(struct machine_desc *desc, struct tag *tags, char **cmdline, struct meminfo *mi) { screen_info.orig_video_lines = 25; screen_info.orig_video_points = 16; screen_info.orig_y = 24; } MACHINE_START(CATS, "Chalice-CATS") /* Maintainer: Philip Blundell */ .phys_io = DC21285_ARMCSR_BASE, .io_pg_offst = ((0xfe000000) >> 18) & 0xfffc, .boot_params = 0x00000100, .soft_reboot = 1, .fixup = fixup_cats, .map_io = footbridge_map_io, .init_irq = footbridge_init_irq, .timer = &isa_timer, MACHINE_END