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 * 8 * Copyright (C) 1996, 1997, 2004, 05 by Ralf Baechle (ralf@linux-mips.org) 9 * Copyright (C) 2001, 2002, 2003 by Liam Davies (ldavies@agile.tv) 10 * 11 */ 12 #include <linux/init.h> 13 #include <linux/interrupt.h> 14 #include <linux/io.h> 15 #include <linux/ioport.h> 16 #include <linux/memblock.h> 17 #include <linux/pm.h> 18 19 #include <asm/bootinfo.h> 20 #include <asm/reboot.h> 21 #include <asm/setup.h> 22 #include <asm/gt64120.h> 23 24 #include <cobalt.h> 25 26 const char *get_system_type(void) 27 { 28 switch (cobalt_board_id) { 29 case COBALT_BRD_ID_QUBE1: 30 return "Cobalt Qube"; 31 case COBALT_BRD_ID_RAQ1: 32 return "Cobalt RaQ"; 33 case COBALT_BRD_ID_QUBE2: 34 return "Cobalt Qube2"; 35 case COBALT_BRD_ID_RAQ2: 36 return "Cobalt RaQ2"; 37 } 38 return "MIPS Cobalt"; 39 } 40 41 /* 42 * Cobalt doesn't have PS/2 keyboard/mouse interfaces, 43 * keyboard controller is never used. 44 * Also PCI-ISA bridge DMA controller is never used. 45 */ 46 static struct resource cobalt_reserved_resources[] = { 47 { /* dma1 */ 48 .start = 0x00, 49 .end = 0x1f, 50 .name = "reserved", 51 .flags = IORESOURCE_BUSY | IORESOURCE_IO, 52 }, 53 { /* keyboard */ 54 .start = 0x60, 55 .end = 0x6f, 56 .name = "reserved", 57 .flags = IORESOURCE_BUSY | IORESOURCE_IO, 58 }, 59 { /* dma page reg */ 60 .start = 0x80, 61 .end = 0x8f, 62 .name = "reserved", 63 .flags = IORESOURCE_BUSY | IORESOURCE_IO, 64 }, 65 { /* dma2 */ 66 .start = 0xc0, 67 .end = 0xdf, 68 .name = "reserved", 69 .flags = IORESOURCE_BUSY | IORESOURCE_IO, 70 }, 71 }; 72 73 void __init plat_mem_setup(void) 74 { 75 int i; 76 77 _machine_restart = cobalt_machine_restart; 78 _machine_halt = cobalt_machine_halt; 79 pm_power_off = cobalt_machine_halt; 80 81 set_io_port_base(CKSEG1ADDR(GT_DEF_PCI0_IO_BASE)); 82 83 /* I/O port resource */ 84 ioport_resource.end = 0x01ffffff; 85 86 /* These resources have been reserved by VIA SuperI/O chip. */ 87 for (i = 0; i < ARRAY_SIZE(cobalt_reserved_resources); i++) 88 request_resource(&ioport_resource, cobalt_reserved_resources + i); 89 } 90 91 /* 92 * Prom init. We read our one and only communication with the firmware. 93 * Grab the amount of installed memory. 94 * Better boot loaders (CoLo) pass a command line too :-) 95 */ 96 97 void __init prom_init(void) 98 { 99 unsigned long memsz; 100 int argc, i; 101 char **argv; 102 103 memsz = fw_arg0 & 0x7fff0000; 104 argc = fw_arg0 & 0x0000ffff; 105 argv = (char **)fw_arg1; 106 107 for (i = 1; i < argc; i++) { 108 strlcat(arcs_cmdline, argv[i], COMMAND_LINE_SIZE); 109 if (i < (argc - 1)) 110 strlcat(arcs_cmdline, " ", COMMAND_LINE_SIZE); 111 } 112 113 memblock_add(0, memsz); 114 115 setup_8250_early_printk_port(CKSEG1ADDR(0x1c800000), 0, 0); 116 } 117