2 * linux/arch/arm/mach-footbridge/cats-hw.c
6 * Copyright (C) 1998, 1999 Russell King, Phil Blundell
8 #include <linux/ioport.h>
9 #include <linux/kernel.h>
10 #include <linux/init.h>
11 #include <linux/screen_info.h>
13 #include <asm/hardware/dec21285.h>
15 #include <asm/mach-types.h>
16 #include <asm/setup.h>
18 #include <asm/mach/arch.h>
22 #define CFG_PORT 0x370
23 #define INDEX_PORT (CFG_PORT)
24 #define DATA_PORT (CFG_PORT + 1)
26 static int __init cats_hw_init(void)
28 if (machine_is_cats()) {
29 /* Set Aladdin to CONFIGURE mode */
33 /* Select logical device 3 */
34 outb(0x07, INDEX_PORT);
35 outb(0x03, DATA_PORT);
37 /* Set parallel port to DMA channel 3, ECP+EPP1.9,
39 outb(0x74, INDEX_PORT);
40 outb(0x03, DATA_PORT);
42 outb(0xf0, INDEX_PORT);
43 outb(0x0f, DATA_PORT);
45 outb(0xf1, INDEX_PORT);
46 outb(0x07, DATA_PORT);
48 /* Select logical device 4 */
49 outb(0x07, INDEX_PORT);
50 outb(0x04, DATA_PORT);
52 /* UART1 high speed mode */
53 outb(0xf0, INDEX_PORT);
54 outb(0x02, DATA_PORT);
56 /* Select logical device 5 */
57 outb(0x07, INDEX_PORT);
58 outb(0x05, DATA_PORT);
60 /* UART2 high speed mode */
61 outb(0xf0, INDEX_PORT);
62 outb(0x02, DATA_PORT);
64 /* Set Aladdin to RUN mode */
71 __initcall(cats_hw_init);
74 * CATS uses soft-reboot by default, since
75 * hard reboots fail on early boards.
78 fixup_cats(struct machine_desc *desc, struct tag *tags,
79 char **cmdline, struct meminfo *mi)
81 screen_info.orig_video_lines = 25;
82 screen_info.orig_video_points = 16;
83 screen_info.orig_y = 24;
86 MACHINE_START(CATS, "Chalice-CATS")
87 /* Maintainer: Philip Blundell */
88 .phys_io = DC21285_ARMCSR_BASE,
89 .io_pg_offst = ((0xfe000000) >> 18) & 0xfffc,
90 .boot_params = 0x00000100,
93 .map_io = footbridge_map_io,
94 .init_irq = footbridge_init_irq,