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/interrupt.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | #include <linux/init.h> |
Ralf Baechle | fcdb27a | 2006-01-18 17:37:07 +0000 | [diff] [blame] | 14 | #include <linux/pm.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 | |
| 16 | #include <asm/bootinfo.h> |
| 17 | #include <asm/time.h> |
| 18 | #include <asm/io.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); |
| 26 | extern void cobalt_machine_power_off(void); |
| 27 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | const char *get_system_type(void) |
| 29 | { |
Ralf Baechle | c4ed38a | 2005-02-21 16:18:36 +0000 | [diff] [blame] | 30 | switch (cobalt_board_id) { |
| 31 | case COBALT_BRD_ID_QUBE1: |
| 32 | return "Cobalt Qube"; |
| 33 | case COBALT_BRD_ID_RAQ1: |
| 34 | return "Cobalt RaQ"; |
| 35 | case COBALT_BRD_ID_QUBE2: |
| 36 | return "Cobalt Qube2"; |
| 37 | case COBALT_BRD_ID_RAQ2: |
| 38 | return "Cobalt RaQ2"; |
| 39 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 40 | return "MIPS Cobalt"; |
| 41 | } |
| 42 | |
Ralf Baechle | 54d0a21 | 2006-07-09 21:38:56 +0100 | [diff] [blame] | 43 | void __init plat_timer_setup(struct irqaction *irq) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | { |
Scott Ashcroft | 5c90d52 | 2006-10-06 16:54:54 +0100 | [diff] [blame] | 45 | /* Load timer value for HZ (TCLK is 50MHz) */ |
Yoichi Yuasa | 56ae583 | 2006-10-14 00:25:04 +0900 | [diff] [blame] | 46 | GT_WRITE(GT_TC0_OFS, 50*1000*1000 / HZ); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | |
Ralf Baechle | c4ed38a | 2005-02-21 16:18:36 +0000 | [diff] [blame] | 48 | /* Enable timer */ |
Yoichi Yuasa | 56ae583 | 2006-10-14 00:25:04 +0900 | [diff] [blame] | 49 | GT_WRITE(GT_TC_CONTROL_OFS, GT_TC_CONTROL_ENTC0_MSK | GT_TC_CONTROL_SELTC0_MSK); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | |
Ralf Baechle | c4ed38a | 2005-02-21 16:18:36 +0000 | [diff] [blame] | 51 | /* Register interrupt */ |
| 52 | setup_irq(COBALT_GALILEO_IRQ, irq); |
| 53 | |
| 54 | /* Enable interrupt */ |
Yoichi Yuasa | 56ae583 | 2006-10-14 00:25:04 +0900 | [diff] [blame] | 55 | GT_WRITE(GT_INTRMASK_OFS, GT_INTR_T0EXP_MSK | GT_READ(GT_INTRMASK_OFS)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | } |
| 57 | |
Yoichi Yuasa | 47d7c44 | 2007-03-01 22:50:25 +0900 | [diff] [blame] | 58 | /* |
| 59 | * Cobalt doesn't have PS/2 keyboard/mouse interfaces, |
| 60 | * keyboard conntroller is never used. |
| 61 | * Also PCI-ISA bridge DMA contoroller is never used. |
| 62 | */ |
| 63 | static struct resource cobalt_reserved_resources[] = { |
| 64 | { /* dma1 */ |
Ralf Baechle | 5e46c3a | 2006-06-04 15:14:05 -0700 | [diff] [blame] | 65 | .start = 0x00, |
| 66 | .end = 0x1f, |
Yoichi Yuasa | 47d7c44 | 2007-03-01 22:50:25 +0900 | [diff] [blame] | 67 | .name = "reserved", |
| 68 | .flags = IORESOURCE_BUSY | IORESOURCE_IO, |
| 69 | }, |
| 70 | { /* keyboard */ |
Ralf Baechle | 5e46c3a | 2006-06-04 15:14:05 -0700 | [diff] [blame] | 71 | .start = 0x60, |
| 72 | .end = 0x6f, |
Yoichi Yuasa | 47d7c44 | 2007-03-01 22:50:25 +0900 | [diff] [blame] | 73 | .name = "reserved", |
| 74 | .flags = IORESOURCE_BUSY | IORESOURCE_IO, |
| 75 | }, |
| 76 | { /* dma page reg */ |
Ralf Baechle | 5e46c3a | 2006-06-04 15:14:05 -0700 | [diff] [blame] | 77 | .start = 0x80, |
| 78 | .end = 0x8f, |
Yoichi Yuasa | 47d7c44 | 2007-03-01 22:50:25 +0900 | [diff] [blame] | 79 | .name = "reserved", |
| 80 | .flags = IORESOURCE_BUSY | IORESOURCE_IO, |
| 81 | }, |
| 82 | { /* dma2 */ |
Ralf Baechle | 5e46c3a | 2006-06-04 15:14:05 -0700 | [diff] [blame] | 83 | .start = 0xc0, |
| 84 | .end = 0xdf, |
Yoichi Yuasa | 47d7c44 | 2007-03-01 22:50:25 +0900 | [diff] [blame] | 85 | .name = "reserved", |
| 86 | .flags = IORESOURCE_BUSY | IORESOURCE_IO, |
Ralf Baechle | 5e46c3a | 2006-06-04 15:14:05 -0700 | [diff] [blame] | 87 | }, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 88 | }; |
| 89 | |
Ralf Baechle | 2925aba | 2006-06-18 01:32:22 +0100 | [diff] [blame] | 90 | void __init plat_mem_setup(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 91 | { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 92 | int i; |
| 93 | |
| 94 | _machine_restart = cobalt_machine_restart; |
| 95 | _machine_halt = cobalt_machine_halt; |
Ralf Baechle | fcdb27a | 2006-01-18 17:37:07 +0000 | [diff] [blame] | 96 | pm_power_off = cobalt_machine_power_off; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 97 | |
Yoichi Yuasa | 56ae583 | 2006-10-14 00:25:04 +0900 | [diff] [blame] | 98 | set_io_port_base(CKSEG1ADDR(GT_DEF_PCI0_IO_BASE)); |
Ralf Baechle | c4ed38a | 2005-02-21 16:18:36 +0000 | [diff] [blame] | 99 | |
Yoichi Yuasa | 0cfd526 | 2007-02-09 12:16:24 +0900 | [diff] [blame] | 100 | /* I/O port resource must include LCD/buttons */ |
Ralf Baechle | c4ed38a | 2005-02-21 16:18:36 +0000 | [diff] [blame] | 101 | ioport_resource.end = 0x0fffffff; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 102 | |
Yoichi Yuasa | 47d7c44 | 2007-03-01 22:50:25 +0900 | [diff] [blame] | 103 | /* These resources have been reserved by VIA SuperI/O chip. */ |
| 104 | for (i = 0; i < ARRAY_SIZE(cobalt_reserved_resources); i++) |
| 105 | request_resource(&ioport_resource, cobalt_reserved_resources + i); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | } |
| 107 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | /* |
| 109 | * Prom init. We read our one and only communication with the firmware. |
Ralf Baechle | c4ed38a | 2005-02-21 16:18:36 +0000 | [diff] [blame] | 110 | * Grab the amount of installed memory. |
| 111 | * Better boot loaders (CoLo) pass a command line too :-) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | */ |
| 113 | |
| 114 | void __init prom_init(void) |
| 115 | { |
Ralf Baechle | c4ed38a | 2005-02-21 16:18:36 +0000 | [diff] [blame] | 116 | int narg, indx, posn, nchr; |
| 117 | unsigned long memsz; |
| 118 | char **argv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | |
| 120 | mips_machgroup = MACH_GROUP_COBALT; |
| 121 | |
Ralf Baechle | c4ed38a | 2005-02-21 16:18:36 +0000 | [diff] [blame] | 122 | memsz = fw_arg0 & 0x7fff0000; |
| 123 | narg = fw_arg0 & 0x0000ffff; |
| 124 | |
| 125 | if (narg) { |
| 126 | arcs_cmdline[0] = '\0'; |
| 127 | argv = (char **) fw_arg1; |
| 128 | posn = 0; |
| 129 | for (indx = 1; indx < narg; ++indx) { |
| 130 | nchr = strlen(argv[indx]); |
| 131 | if (posn + 1 + nchr + 1 > sizeof(arcs_cmdline)) |
| 132 | break; |
| 133 | if (posn) |
| 134 | arcs_cmdline[posn++] = ' '; |
| 135 | strcpy(arcs_cmdline + posn, argv[indx]); |
| 136 | posn += nchr; |
| 137 | } |
| 138 | } |
| 139 | |
| 140 | add_memory_region(0x0, memsz, BOOT_MEM_RAM); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | } |
| 142 | |
Atsushi Nemoto | c44e8d5 | 2006-12-30 00:43:59 +0900 | [diff] [blame] | 143 | void __init prom_free_prom_memory(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | { |
| 145 | /* Nothing to do! */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | } |