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 extern void cobalt_machine_restart(char *command); 27 extern void cobalt_machine_halt(void); 28 29 const char *get_system_type(void) 30 { 31 switch (cobalt_board_id) { 32 case COBALT_BRD_ID_QUBE1: 33 return "Cobalt Qube"; 34 case COBALT_BRD_ID_RAQ1: 35 return "Cobalt RaQ"; 36 case COBALT_BRD_ID_QUBE2: 37 return "Cobalt Qube2"; 38 case COBALT_BRD_ID_RAQ2: 39 return "Cobalt RaQ2"; 40 } 41 return "MIPS Cobalt"; 42 } 43 44 /* 45 * Cobalt doesn't have PS/2 keyboard/mouse interfaces, 46 * keyboard controller is never used. 47 * Also PCI-ISA bridge DMA controller is never used. 48 */ 49 static struct resource cobalt_reserved_resources[] = { 50 { /* dma1 */ 51 .start = 0x00, 52 .end = 0x1f, 53 .name = "reserved", 54 .flags = IORESOURCE_BUSY | IORESOURCE_IO, 55 }, 56 { /* keyboard */ 57 .start = 0x60, 58 .end = 0x6f, 59 .name = "reserved", 60 .flags = IORESOURCE_BUSY | IORESOURCE_IO, 61 }, 62 { /* dma page reg */ 63 .start = 0x80, 64 .end = 0x8f, 65 .name = "reserved", 66 .flags = IORESOURCE_BUSY | IORESOURCE_IO, 67 }, 68 { /* dma2 */ 69 .start = 0xc0, 70 .end = 0xdf, 71 .name = "reserved", 72 .flags = IORESOURCE_BUSY | IORESOURCE_IO, 73 }, 74 }; 75 76 void __init plat_mem_setup(void) 77 { 78 int i; 79 80 _machine_restart = cobalt_machine_restart; 81 _machine_halt = cobalt_machine_halt; 82 pm_power_off = cobalt_machine_halt; 83 84 set_io_port_base(CKSEG1ADDR(GT_DEF_PCI0_IO_BASE)); 85 86 /* I/O port resource */ 87 ioport_resource.end = 0x01ffffff; 88 89 /* These resources have been reserved by VIA SuperI/O chip. */ 90 for (i = 0; i < ARRAY_SIZE(cobalt_reserved_resources); i++) 91 request_resource(&ioport_resource, cobalt_reserved_resources + i); 92 } 93 94 /* 95 * Prom init. We read our one and only communication with the firmware. 96 * Grab the amount of installed memory. 97 * Better boot loaders (CoLo) pass a command line too :-) 98 */ 99 100 void __init prom_init(void) 101 { 102 unsigned long memsz; 103 int argc, i; 104 char **argv; 105 106 memsz = fw_arg0 & 0x7fff0000; 107 argc = fw_arg0 & 0x0000ffff; 108 argv = (char **)fw_arg1; 109 110 for (i = 1; i < argc; i++) { 111 strlcat(arcs_cmdline, argv[i], COMMAND_LINE_SIZE); 112 if (i < (argc - 1)) 113 strlcat(arcs_cmdline, " ", COMMAND_LINE_SIZE); 114 } 115 116 memblock_add(0, memsz); 117 118 setup_8250_early_printk_port(CKSEG1ADDR(0x1c800000), 0, 0); 119 } 120