projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
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> | |
| b1c495ff | 11 | #include <linux/screen_info.h> |
| fced80c7 | 12 | #include <linux/io.h> |
| 70d13e08 | 13 | #include <linux/spinlock.h> |
| 1da177e4 LT |
14 | |
| 15 | #include <asm/hardware/dec21285.h> | |
| 1da177e4 LT |
16 | #include <asm/mach-types.h> |
| 17 | #include <asm/setup.h> | |
| 18 | ||
| 19 | #include <asm/mach/arch.h> | |
| 20 | ||
| 21 | #include "common.h" | |
| 22 | ||
| 23 | #define CFG_PORT 0x370 | |
| 24 | #define INDEX_PORT (CFG_PORT) | |
| 25 | #define DATA_PORT (CFG_PORT + 1) | |
| 26 | ||
| 27 | static int __init cats_hw_init(void) | |
| 28 | { | |
| 29 | if (machine_is_cats()) { | |
| 30 | /* Set Aladdin to CONFIGURE mode */ | |
| 31 | outb(0x51, CFG_PORT); | |
| 32 | outb(0x23, CFG_PORT); | |
| 33 | ||
| 34 | /* Select logical device 3 */ | |
| 35 | outb(0x07, INDEX_PORT); | |
| 36 | outb(0x03, DATA_PORT); | |
| 37 | ||
| 38 | /* Set parallel port to DMA channel 3, ECP+EPP1.9, | |
| 39 | enable EPP timeout */ | |
| 40 | outb(0x74, INDEX_PORT); | |
| 41 | outb(0x03, DATA_PORT); | |
| 42 | ||
| 43 | outb(0xf0, INDEX_PORT); | |
| 44 | outb(0x0f, DATA_PORT); | |
| 45 | ||
| 46 | outb(0xf1, INDEX_PORT); | |
| 47 | outb(0x07, DATA_PORT); | |
| 48 | ||
| 49 | /* Select logical device 4 */ | |
| 50 | outb(0x07, INDEX_PORT); | |
| 51 | outb(0x04, DATA_PORT); | |
| 52 | ||
| 53 | /* UART1 high speed mode */ | |
| 54 | outb(0xf0, INDEX_PORT); | |
| 55 | outb(0x02, DATA_PORT); | |
| 56 | ||
| 57 | /* Select logical device 5 */ | |
| 58 | outb(0x07, INDEX_PORT); | |
| 59 | outb(0x05, DATA_PORT); | |
| 60 | ||
| 61 | /* UART2 high speed mode */ | |
| 62 | outb(0xf0, INDEX_PORT); | |
| 63 | outb(0x02, DATA_PORT); | |
| 64 | ||
| 65 | /* Set Aladdin to RUN mode */ | |
| 66 | outb(0xbb, CFG_PORT); | |
| 67 | } | |
| 68 | ||
| 69 | return 0; | |
| 70 | } | |
| 71 | ||
| 72 | __initcall(cats_hw_init); | |
| 73 | ||
| 74 | /* | |
| 75 | * CATS uses soft-reboot by default, since | |
| 76 | * hard reboots fail on early boards. | |
| 77 | */ | |
| 78 | static void __init | |
| 79 | fixup_cats(struct machine_desc *desc, struct tag *tags, | |
| 80 | char **cmdline, struct meminfo *mi) | |
| 81 | { | |
| 3ea33510 PA |
82 | screen_info.orig_video_lines = 25; |
| 83 | screen_info.orig_video_points = 16; | |
| 84 | screen_info.orig_y = 24; | |
| 1da177e4 LT |
85 | } |
| 86 | ||
| 87 | MACHINE_START(CATS, "Chalice-CATS") | |
| e9dea0c6 | 88 | /* Maintainer: Philip Blundell */ |
| e9dea0c6 RK |
89 | .boot_params = 0x00000100, |
| 90 | .soft_reboot = 1, | |
| 91 | .fixup = fixup_cats, | |
| 92 | .map_io = footbridge_map_io, | |
| 93 | .init_irq = footbridge_init_irq, | |
| 1da177e4 LT |
94 | .timer = &isa_timer, |
| 95 | MACHINE_END |