Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Setup pointers to hardware dependent routines. |
| 3 | * |
| 4 | * This file is subject to the terms and conditions of the GNU General Public |
| 5 | * License. See the file "COPYING" in the main directory of this archive |
| 6 | * for more details. |
| 7 | * |
Ralf Baechle | fcdb27a | 2006-01-18 17:37:07 +0000 | [diff] [blame] | 8 | * Copyright (C) 1996, 1997, 2004, 05 by Ralf Baechle (ralf@linux-mips.org) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9 | * Copyright (C) 2001, 2002, 2003 by Liam Davies (ldavies@agile.tv) |
| 10 | * |
| 11 | */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 12 | #include <linux/init.h> |
Yoichi Yuasa | 1097c6a | 2007-10-22 19:43:15 +0900 | [diff] [blame] | 13 | #include <linux/interrupt.h> |
| 14 | #include <linux/io.h> |
| 15 | #include <linux/ioport.h> |
Ralf Baechle | fcdb27a | 2006-01-18 17:37:07 +0000 | [diff] [blame] | 16 | #include <linux/pm.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | |
| 18 | #include <asm/bootinfo.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | #include <asm/reboot.h> |
| 20 | #include <asm/gt64120.h> |
| 21 | |
Yoichi Yuasa | cc50b67 | 2007-03-06 21:34:44 +0900 | [diff] [blame] | 22 | #include <cobalt.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | |
| 24 | extern void cobalt_machine_restart(char *command); |
| 25 | extern void cobalt_machine_halt(void); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | const char *get_system_type(void) |
| 28 | { |
Ralf Baechle | c4ed38a | 2005-02-21 16:18:36 +0000 | [diff] [blame] | 29 | switch (cobalt_board_id) { |
| 30 | case COBALT_BRD_ID_QUBE1: |
| 31 | return "Cobalt Qube"; |
| 32 | case COBALT_BRD_ID_RAQ1: |
| 33 | return "Cobalt RaQ"; |
| 34 | case COBALT_BRD_ID_QUBE2: |
| 35 | return "Cobalt Qube2"; |
| 36 | case COBALT_BRD_ID_RAQ2: |
| 37 | return "Cobalt RaQ2"; |
| 38 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | return "MIPS Cobalt"; |
| 40 | } |
| 41 | |
Yoichi Yuasa | 47d7c44 | 2007-03-01 22:50:25 +0900 | [diff] [blame] | 42 | /* |
| 43 | * Cobalt doesn't have PS/2 keyboard/mouse interfaces, |
| 44 | * keyboard conntroller is never used. |
| 45 | * Also PCI-ISA bridge DMA contoroller is never used. |
| 46 | */ |
| 47 | static struct resource cobalt_reserved_resources[] = { |
| 48 | { /* dma1 */ |
Ralf Baechle | 5e46c3a | 2006-06-04 15:14:05 -0700 | [diff] [blame] | 49 | .start = 0x00, |
| 50 | .end = 0x1f, |
Yoichi Yuasa | 47d7c44 | 2007-03-01 22:50:25 +0900 | [diff] [blame] | 51 | .name = "reserved", |
| 52 | .flags = IORESOURCE_BUSY | IORESOURCE_IO, |
| 53 | }, |
| 54 | { /* keyboard */ |
Ralf Baechle | 5e46c3a | 2006-06-04 15:14:05 -0700 | [diff] [blame] | 55 | .start = 0x60, |
| 56 | .end = 0x6f, |
Yoichi Yuasa | 47d7c44 | 2007-03-01 22:50:25 +0900 | [diff] [blame] | 57 | .name = "reserved", |
| 58 | .flags = IORESOURCE_BUSY | IORESOURCE_IO, |
| 59 | }, |
| 60 | { /* dma page reg */ |
Ralf Baechle | 5e46c3a | 2006-06-04 15:14:05 -0700 | [diff] [blame] | 61 | .start = 0x80, |
| 62 | .end = 0x8f, |
Yoichi Yuasa | 47d7c44 | 2007-03-01 22:50:25 +0900 | [diff] [blame] | 63 | .name = "reserved", |
| 64 | .flags = IORESOURCE_BUSY | IORESOURCE_IO, |
| 65 | }, |
| 66 | { /* dma2 */ |
Ralf Baechle | 5e46c3a | 2006-06-04 15:14:05 -0700 | [diff] [blame] | 67 | .start = 0xc0, |
| 68 | .end = 0xdf, |
Yoichi Yuasa | 47d7c44 | 2007-03-01 22:50:25 +0900 | [diff] [blame] | 69 | .name = "reserved", |
| 70 | .flags = IORESOURCE_BUSY | IORESOURCE_IO, |
Ralf Baechle | 5e46c3a | 2006-06-04 15:14:05 -0700 | [diff] [blame] | 71 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 72 | }; |
| 73 | |
Ralf Baechle | 2925aba | 2006-06-18 01:32:22 +0100 | [diff] [blame] | 74 | void __init plat_mem_setup(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 76 | int i; |
| 77 | |
| 78 | _machine_restart = cobalt_machine_restart; |
| 79 | _machine_halt = cobalt_machine_halt; |
Yoichi Yuasa | f13558c | 2007-10-02 23:21:36 +0900 | [diff] [blame] | 80 | pm_power_off = cobalt_machine_halt; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 81 | |
Yoichi Yuasa | 56ae583 | 2006-10-14 00:25:04 +0900 | [diff] [blame] | 82 | set_io_port_base(CKSEG1ADDR(GT_DEF_PCI0_IO_BASE)); |
Ralf Baechle | c4ed38a | 2005-02-21 16:18:36 +0000 | [diff] [blame] | 83 | |
Yoichi Yuasa | b5d5acc | 2008-07-18 23:03:15 +0900 | [diff] [blame] | 84 | /* I/O port resource */ |
| 85 | ioport_resource.end = 0x01ffffff; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | |
Yoichi Yuasa | 47d7c44 | 2007-03-01 22:50:25 +0900 | [diff] [blame] | 87 | /* These resources have been reserved by VIA SuperI/O chip. */ |
| 88 | for (i = 0; i < ARRAY_SIZE(cobalt_reserved_resources); i++) |
| 89 | request_resource(&ioport_resource, cobalt_reserved_resources + i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 90 | } |
| 91 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 92 | /* |
| 93 | * Prom init. We read our one and only communication with the firmware. |
Ralf Baechle | c4ed38a | 2005-02-21 16:18:36 +0000 | [diff] [blame] | 94 | * Grab the amount of installed memory. |
| 95 | * Better boot loaders (CoLo) pass a command line too :-) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 96 | */ |
| 97 | |
| 98 | void __init prom_init(void) |
| 99 | { |
Ralf Baechle | c4ed38a | 2005-02-21 16:18:36 +0000 | [diff] [blame] | 100 | int narg, indx, posn, nchr; |
| 101 | unsigned long memsz; |
| 102 | char **argv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 103 | |
Ralf Baechle | c4ed38a | 2005-02-21 16:18:36 +0000 | [diff] [blame] | 104 | memsz = fw_arg0 & 0x7fff0000; |
| 105 | narg = fw_arg0 & 0x0000ffff; |
| 106 | |
| 107 | if (narg) { |
| 108 | arcs_cmdline[0] = '\0'; |
| 109 | argv = (char **) fw_arg1; |
| 110 | posn = 0; |
| 111 | for (indx = 1; indx < narg; ++indx) { |
| 112 | nchr = strlen(argv[indx]); |
| 113 | if (posn + 1 + nchr + 1 > sizeof(arcs_cmdline)) |
| 114 | break; |
| 115 | if (posn) |
| 116 | arcs_cmdline[posn++] = ' '; |
| 117 | strcpy(arcs_cmdline + posn, argv[indx]); |
| 118 | posn += nchr; |
| 119 | } |
| 120 | } |
| 121 | |
| 122 | add_memory_region(0x0, memsz, BOOT_MEM_RAM); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | } |
| 124 | |
Atsushi Nemoto | c44e8d5 | 2006-12-30 00:43:59 +0900 | [diff] [blame] | 125 | void __init prom_free_prom_memory(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 126 | { |
| 127 | /* Nothing to do! */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 128 | } |