diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/mips/cobalt/setup.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/mips/cobalt/setup.c')
-rw-r--r-- | arch/mips/cobalt/setup.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/arch/mips/cobalt/setup.c b/arch/mips/cobalt/setup.c new file mode 100644 index 000000000000..6b4737e425ed --- /dev/null +++ b/arch/mips/cobalt/setup.c | |||
@@ -0,0 +1,150 @@ | |||
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 by Ralf Baechle (ralf@linux-mips.org) | ||
9 | * Copyright (C) 2001, 2002, 2003 by Liam Davies (ldavies@agile.tv) | ||
10 | * | ||
11 | */ | ||
12 | #include <linux/config.h> | ||
13 | #include <linux/interrupt.h> | ||
14 | #include <linux/pci.h> | ||
15 | #include <linux/init.h> | ||
16 | |||
17 | #include <asm/bootinfo.h> | ||
18 | #include <asm/time.h> | ||
19 | #include <asm/io.h> | ||
20 | #include <asm/irq.h> | ||
21 | #include <asm/processor.h> | ||
22 | #include <asm/reboot.h> | ||
23 | #include <asm/gt64120.h> | ||
24 | |||
25 | #include <asm/cobalt/cobalt.h> | ||
26 | |||
27 | extern void cobalt_machine_restart(char *command); | ||
28 | extern void cobalt_machine_halt(void); | ||
29 | extern void cobalt_machine_power_off(void); | ||
30 | |||
31 | int cobalt_board_id; | ||
32 | |||
33 | static char my_cmdline[CL_SIZE] = { | ||
34 | "console=ttyS0,115200 " | ||
35 | #ifdef CONFIG_IP_PNP | ||
36 | "ip=on " | ||
37 | #endif | ||
38 | #ifdef CONFIG_ROOT_NFS | ||
39 | "root=/dev/nfs " | ||
40 | #else | ||
41 | "root=/dev/hda1 " | ||
42 | #endif | ||
43 | }; | ||
44 | |||
45 | const char *get_system_type(void) | ||
46 | { | ||
47 | return "MIPS Cobalt"; | ||
48 | } | ||
49 | |||
50 | static void __init cobalt_timer_setup(struct irqaction *irq) | ||
51 | { | ||
52 | /* Load timer value for 150 Hz */ | ||
53 | GALILEO_OUTL(500000, GT_TC0_OFS); | ||
54 | |||
55 | /* Register our timer interrupt */ | ||
56 | setup_irq(COBALT_TIMER_IRQ, irq); | ||
57 | |||
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); | ||
62 | } | ||
63 | |||
64 | extern struct pci_ops gt64111_pci_ops; | ||
65 | |||
66 | static struct resource cobalt_mem_resource = { | ||
67 | "GT64111 PCI MEM", GT64111_IO_BASE, 0xffffffffUL, IORESOURCE_MEM | ||
68 | }; | ||
69 | |||
70 | static struct resource cobalt_io_resource = { | ||
71 | "GT64111 IO MEM", 0x00001000UL, 0x0fffffffUL, IORESOURCE_IO | ||
72 | }; | ||
73 | |||
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 }, | ||
80 | }; | ||
81 | |||
82 | #define COBALT_IO_RESOURCES (sizeof(cobalt_io_resources)/sizeof(struct resource)) | ||
83 | |||
84 | static struct pci_controller cobalt_pci_controller = { | ||
85 | .pci_ops = >64111_pci_ops, | ||
86 | .mem_resource = &cobalt_mem_resource, | ||
87 | .mem_offset = 0, | ||
88 | .io_resource = &cobalt_io_resource, | ||
89 | .io_offset = 0x00001000UL - GT64111_IO_BASE | ||
90 | }; | ||
91 | |||
92 | static void __init cobalt_setup(void) | ||
93 | { | ||
94 | unsigned int devfn = PCI_DEVFN(COBALT_PCICONF_VIA, 0); | ||
95 | int i; | ||
96 | |||
97 | _machine_restart = cobalt_machine_restart; | ||
98 | _machine_halt = cobalt_machine_halt; | ||
99 | _machine_power_off = cobalt_machine_power_off; | ||
100 | |||
101 | board_timer_setup = cobalt_timer_setup; | ||
102 | |||
103 | set_io_port_base(KSEG1ADDR(GT64111_IO_BASE)); | ||
104 | |||
105 | /* | ||
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. | ||
110 | */ | ||
111 | /*ns16550_setup_console();*/ | ||
112 | |||
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); | ||
116 | |||
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); | ||
122 | |||
123 | #ifdef CONFIG_PCI | ||
124 | register_pci_controller(&cobalt_pci_controller); | ||
125 | #endif | ||
126 | } | ||
127 | |||
128 | early_initcall(cobalt_setup); | ||
129 | |||
130 | /* | ||
131 | * Prom init. We read our one and only communication with the firmware. | ||
132 | * Grab the amount of installed memory | ||
133 | */ | ||
134 | |||
135 | void __init prom_init(void) | ||
136 | { | ||
137 | int argc = fw_arg0; | ||
138 | |||
139 | strcpy(arcs_cmdline, my_cmdline); | ||
140 | |||
141 | mips_machgroup = MACH_GROUP_COBALT; | ||
142 | |||
143 | add_memory_region(0x0, argc & 0x7fffffff, BOOT_MEM_RAM); | ||
144 | } | ||
145 | |||
146 | unsigned long __init prom_free_prom_memory(void) | ||
147 | { | ||
148 | /* Nothing to do! */ | ||
149 | return 0; | ||
150 | } | ||