2 * Setup pointers to hardware dependent routines.
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
8 * Copyright (C) 1996, 1997, 2004 by Ralf Baechle (ralf@linux-mips.org)
9 * Copyright (C) 2001, 2002, 2003 by Liam Davies (ldavies@agile.tv)
12 #include <linux/config.h>
13 #include <linux/interrupt.h>
14 #include <linux/pci.h>
15 #include <linux/init.h>
17 #include <asm/bootinfo.h>
21 #include <asm/processor.h>
22 #include <asm/reboot.h>
23 #include <asm/gt64120.h>
25 #include <asm/cobalt/cobalt.h>
27 extern void cobalt_machine_restart(char *command);
28 extern void cobalt_machine_halt(void);
29 extern void cobalt_machine_power_off(void);
33 static char my_cmdline[CL_SIZE] = {
34 "console=ttyS0,115200 "
38 #ifdef CONFIG_ROOT_NFS
45 const char *get_system_type(void)
50 static void __init cobalt_timer_setup(struct irqaction *irq)
52 /* Load timer value for 150 Hz */
53 GALILEO_OUTL(500000, GT_TC0_OFS);
55 /* Register our timer interrupt */
56 setup_irq(COBALT_TIMER_IRQ, irq);
58 /* Enable timer ints */
59 GALILEO_OUTL((GALILEO_ENTC0 | GALILEO_SELTC0), GT_TC_CONTROL_OFS);
60 /* Unmask timer int */
61 GALILEO_OUTL(0x100, GT_INTRMASK_OFS);
64 extern struct pci_ops gt64111_pci_ops;
66 static struct resource cobalt_mem_resource = {
67 "GT64111 PCI MEM", GT64111_IO_BASE, 0xffffffffUL, IORESOURCE_MEM
70 static struct resource cobalt_io_resource = {
71 "GT64111 IO MEM", 0x00001000UL, 0x0fffffffUL, IORESOURCE_IO
74 static struct resource cobalt_io_resources[] = {
75 { "dma1", 0x00, 0x1f, IORESOURCE_BUSY },
76 { "timer", 0x40, 0x5f, IORESOURCE_BUSY },
77 { "keyboard", 0x60, 0x6f, IORESOURCE_BUSY },
78 { "dma page reg", 0x80, 0x8f, IORESOURCE_BUSY },
79 { "dma2", 0xc0, 0xdf, IORESOURCE_BUSY },
82 #define COBALT_IO_RESOURCES (sizeof(cobalt_io_resources)/sizeof(struct resource))
84 static struct pci_controller cobalt_pci_controller = {
85 .pci_ops = >64111_pci_ops,
86 .mem_resource = &cobalt_mem_resource,
88 .io_resource = &cobalt_io_resource,
89 .io_offset = 0x00001000UL - GT64111_IO_BASE
92 void __init plat_setup(void)
94 unsigned int devfn = PCI_DEVFN(COBALT_PCICONF_VIA, 0);
97 _machine_restart = cobalt_machine_restart;
98 _machine_halt = cobalt_machine_halt;
99 _machine_power_off = cobalt_machine_power_off;
101 board_timer_setup = cobalt_timer_setup;
103 set_io_port_base(KSEG1ADDR(GT64111_IO_BASE));
106 * This is a prom style console. We just poke at the
107 * UART to make it talk.
108 * Only use this console if you really screw up and can't
109 * get to the stage of setting up a real serial console.
111 /*ns16550_setup_console();*/
113 /* request I/O space for devices used on all i[345]86 PCs */
114 for (i = 0; i < COBALT_IO_RESOURCES; i++)
115 request_resource(&ioport_resource, cobalt_io_resources + i);
117 /* Read the cobalt id register out of the PCI config space */
118 PCI_CFG_SET(devfn, (VIA_COBALT_BRD_ID_REG & ~0x3));
119 cobalt_board_id = GALILEO_INL(GT_PCI0_CFGDATA_OFS);
120 cobalt_board_id >>= ((VIA_COBALT_BRD_ID_REG & 3) * 8);
121 cobalt_board_id = VIA_COBALT_BRD_REG_to_ID(cobalt_board_id);
124 register_pci_controller(&cobalt_pci_controller);
129 * Prom init. We read our one and only communication with the firmware.
130 * Grab the amount of installed memory
133 void __init prom_init(void)
137 strcpy(arcs_cmdline, my_cmdline);
139 mips_machgroup = MACH_GROUP_COBALT;
141 add_memory_region(0x0, argc & 0x7fffffff, BOOT_MEM_RAM);
144 unsigned long __init prom_free_prom_memory(void)