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git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - arch/arm/mach-footbridge/cats-hw.c
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 <linux/spinlock.h>
15 #include <asm/hardware/dec21285.h>
16 #include <asm/mach-types.h>
17 #include <asm/setup.h>
19 #include <asm/mach/arch.h>
23 #define CFG_PORT 0x370
24 #define INDEX_PORT (CFG_PORT)
25 #define DATA_PORT (CFG_PORT + 1)
27 static int __init
cats_hw_init(void)
29 if (machine_is_cats()) {
30 /* Set Aladdin to CONFIGURE mode */
34 /* Select logical device 3 */
35 outb(0x07, INDEX_PORT
);
36 outb(0x03, DATA_PORT
);
38 /* Set parallel port to DMA channel 3, ECP+EPP1.9,
40 outb(0x74, INDEX_PORT
);
41 outb(0x03, DATA_PORT
);
43 outb(0xf0, INDEX_PORT
);
44 outb(0x0f, DATA_PORT
);
46 outb(0xf1, INDEX_PORT
);
47 outb(0x07, DATA_PORT
);
49 /* Select logical device 4 */
50 outb(0x07, INDEX_PORT
);
51 outb(0x04, DATA_PORT
);
53 /* UART1 high speed mode */
54 outb(0xf0, INDEX_PORT
);
55 outb(0x02, DATA_PORT
);
57 /* Select logical device 5 */
58 outb(0x07, INDEX_PORT
);
59 outb(0x05, DATA_PORT
);
61 /* UART2 high speed mode */
62 outb(0xf0, INDEX_PORT
);
63 outb(0x02, DATA_PORT
);
65 /* Set Aladdin to RUN mode */
72 __initcall(cats_hw_init
);
75 * CATS uses soft-reboot by default, since
76 * hard reboots fail on early boards.
79 fixup_cats(struct tag
*tags
, char **cmdline
)
81 #if defined(CONFIG_VGA_CONSOLE) || defined(CONFIG_DUMMY_CONSOLE)
82 screen_info
.orig_video_lines
= 25;
83 screen_info
.orig_video_points
= 16;
84 screen_info
.orig_y
= 24;
88 MACHINE_START(CATS
, "Chalice-CATS")
89 /* Maintainer: Philip Blundell */
91 .reboot_mode
= REBOOT_SOFT
,
93 .map_io
= footbridge_map_io
,
94 .init_irq
= footbridge_init_irq
,
95 .init_time
= isa_timer_init
,
96 .restart
= footbridge_restart
,