| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/arch/arm/mach-footbridge/cats-hw.c |
| 3 | * |
| 4 | * CATS machine fixup |
| 5 | * |
| 6 | * Copyright (C) 1998, 1999 Russell King, Phil Blundell |
| 7 | */ |
| 8 | #include <linux/ioport.h> |
| 9 | #include <linux/kernel.h> |
| 10 | #include <linux/init.h> |
| Russell King | b1c495f | 2006-07-14 16:23:33 +0100 | [diff] [blame] | 11 | #include <linux/screen_info.h> |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 12 | |
| 13 | #include <asm/hardware/dec21285.h> |
| 14 | #include <asm/io.h> |
| 15 | #include <asm/mach-types.h> |
| 16 | #include <asm/setup.h> |
| 17 | |
| 18 | #include <asm/mach/arch.h> |
| 19 | |
| 20 | #include "common.h" |
| 21 | |
| 22 | #define CFG_PORT 0x370 |
| 23 | #define INDEX_PORT (CFG_PORT) |
| 24 | #define DATA_PORT (CFG_PORT + 1) |
| 25 | |
| 26 | static int __init cats_hw_init(void) |
| 27 | { |
| 28 | if (machine_is_cats()) { |
| 29 | /* Set Aladdin to CONFIGURE mode */ |
| 30 | outb(0x51, CFG_PORT); |
| 31 | outb(0x23, CFG_PORT); |
| 32 | |
| 33 | /* Select logical device 3 */ |
| 34 | outb(0x07, INDEX_PORT); |
| 35 | outb(0x03, DATA_PORT); |
| 36 | |
| 37 | /* Set parallel port to DMA channel 3, ECP+EPP1.9, |
| 38 | enable EPP timeout */ |
| 39 | outb(0x74, INDEX_PORT); |
| 40 | outb(0x03, DATA_PORT); |
| 41 | |
| 42 | outb(0xf0, INDEX_PORT); |
| 43 | outb(0x0f, DATA_PORT); |
| 44 | |
| 45 | outb(0xf1, INDEX_PORT); |
| 46 | outb(0x07, DATA_PORT); |
| 47 | |
| 48 | /* Select logical device 4 */ |
| 49 | outb(0x07, INDEX_PORT); |
| 50 | outb(0x04, DATA_PORT); |
| 51 | |
| 52 | /* UART1 high speed mode */ |
| 53 | outb(0xf0, INDEX_PORT); |
| 54 | outb(0x02, DATA_PORT); |
| 55 | |
| 56 | /* Select logical device 5 */ |
| 57 | outb(0x07, INDEX_PORT); |
| 58 | outb(0x05, DATA_PORT); |
| 59 | |
| 60 | /* UART2 high speed mode */ |
| 61 | outb(0xf0, INDEX_PORT); |
| 62 | outb(0x02, DATA_PORT); |
| 63 | |
| 64 | /* Set Aladdin to RUN mode */ |
| 65 | outb(0xbb, CFG_PORT); |
| 66 | } |
| 67 | |
| 68 | return 0; |
| 69 | } |
| 70 | |
| 71 | __initcall(cats_hw_init); |
| 72 | |
| 73 | /* |
| 74 | * CATS uses soft-reboot by default, since |
| 75 | * hard reboots fail on early boards. |
| 76 | */ |
| 77 | static void __init |
| 78 | fixup_cats(struct machine_desc *desc, struct tag *tags, |
| 79 | char **cmdline, struct meminfo *mi) |
| 80 | { |
| H. Peter Anvin | 3ea3351 | 2007-10-16 22:36:04 -0700 | [diff] [blame] | 81 | screen_info.orig_video_lines = 25; |
| 82 | screen_info.orig_video_points = 16; |
| 83 | screen_info.orig_y = 24; |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | } |
| 85 | |
| 86 | MACHINE_START(CATS, "Chalice-CATS") |
| Russell King | e9dea0c | 2005-07-03 17:38:58 +0100 | [diff] [blame] | 87 | /* Maintainer: Philip Blundell */ |
| Russell King | e9dea0c | 2005-07-03 17:38:58 +0100 | [diff] [blame] | 88 | .phys_io = DC21285_ARMCSR_BASE, |
| 89 | .io_pg_offst = ((0xfe000000) >> 18) & 0xfffc, |
| 90 | .boot_params = 0x00000100, |
| 91 | .soft_reboot = 1, |
| 92 | .fixup = fixup_cats, |
| 93 | .map_io = footbridge_map_io, |
| 94 | .init_irq = footbridge_init_irq, |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | .timer = &isa_timer, |
| 96 | MACHINE_END |