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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/arm/mach-ixp2000/ixdp2800.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/arm/mach-ixp2000/ixdp2800.c')
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1 files changed, 180 insertions, 0 deletions
diff --git a/arch/arm/mach-ixp2000/ixdp2800.c b/arch/arm/mach-ixp2000/ixdp2800.c
new file mode 100644
index 000000000000..c4683aaff84a
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+++ b/arch/arm/mach-ixp2000/ixdp2800.c
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1/*
2 * arch/arm/mach-ixp2000/ixdp2800.c
3 *
4 * IXDP2800 platform support
5 *
6 * Original Author: Jeffrey Daly <jeffrey.daly@intel.com>
7 * Maintainer: Deepak Saxena <dsaxena@plexity.net>
8 *
9 * Copyright (C) 2002 Intel Corp.
10 * Copyright (C) 2003-2004 MontaVista Software, Inc.
11 *
12 * This program is free software; you can redistribute it and/or modify it
13 * under the terms of the GNU General Public License as published by the
14 * Free Software Foundation; either version 2 of the License, or (at your
15 * option) any later version.
16 */
17#include <linux/config.h>
18#include <linux/kernel.h>
19#include <linux/init.h>
20#include <linux/mm.h>
21#include <linux/sched.h>
22#include <linux/interrupt.h>
23#include <linux/device.h>
24#include <linux/bitops.h>
25#include <linux/pci.h>
26#include <linux/ioport.h>
27#include <linux/slab.h>
28#include <linux/delay.h>
29
30#include <asm/io.h>
31#include <asm/irq.h>
32#include <asm/pgtable.h>
33#include <asm/page.h>
34#include <asm/system.h>
35#include <asm/hardware.h>
36#include <asm/mach-types.h>
37
38#include <asm/mach/pci.h>
39#include <asm/mach/map.h>
40#include <asm/mach/irq.h>
41#include <asm/mach/time.h>
42#include <asm/mach/flash.h>
43#include <asm/mach/arch.h>
44
45
46void ixdp2400_init_irq(void)
47{
48 ixdp2x00_init_irq(IXDP2800_CPLD_INT_STAT, IXDP2800_CPLD_INT_MASK, IXDP2400_NR_IRQS);
49}
50
51/*************************************************************************
52 * IXDP2800 timer tick
53 *************************************************************************/
54
55static void __init ixdp2800_timer_init(void)
56{
57 ixp2000_init_time(50000000);
58}
59
60static struct sys_timer ixdp2800_timer = {
61 .init = ixdp2800_timer_init,
62 .offset = ixp2000_gettimeoffset,
63};
64
65/*************************************************************************
66 * IXDP2800 PCI
67 *************************************************************************/
68void __init ixdp2800_pci_preinit(void)
69{
70 printk("ixdp2x00_pci_preinit called\n");
71
72 *IXP2000_PCI_ADDR_EXT = 0x0000e000;
73
74 *IXP2000_PCI_DRAM_BASE_ADDR_MASK = (0x40000000 - 1) & ~0xfffff;
75 *IXP2000_PCI_SRAM_BASE_ADDR_MASK = (0x2000000 - 1) & ~0x3ffff;
76
77 ixp2000_pci_preinit();
78}
79
80int ixdp2800_pci_setup(int nr, struct pci_sys_data *sys)
81{
82 sys->mem_offset = 0x00000000;
83
84 ixp2000_pci_setup(nr, sys);
85
86 return 1;
87}
88
89static int __init ixdp2800_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
90{
91 if (ixdp2x00_master_npu()) {
92
93 /*
94 * Root bus devices. Slave NPU is only one with interrupt.
95 * Everything else, we just return -1 which is invalid.
96 */
97 if(!dev->bus->self) {
98 if(dev->devfn == IXDP2X00_SLAVE_NPU_DEVFN )
99 return IRQ_IXDP2800_INGRESS_NPU;
100
101 return -1;
102 }
103
104 /*
105 * Bridge behind the PMC slot.
106 */
107 if(dev->bus->self->devfn == IXDP2X00_PMC_DEVFN &&
108 dev->bus->parent->self->devfn == IXDP2X00_P2P_DEVFN &&
109 !dev->bus->parent->self->bus->parent)
110 return IRQ_IXDP2800_PMC;
111
112 /*
113 * Device behind the first bridge
114 */
115 if(dev->bus->self->devfn == IXDP2X00_P2P_DEVFN) {
116 switch(dev->devfn) {
117 case IXDP2X00_PMC_DEVFN:
118 return IRQ_IXDP2800_PMC;
119
120 case IXDP2800_MASTER_ENET_DEVFN:
121 return IRQ_IXDP2800_EGRESS_ENET;
122
123 case IXDP2800_SWITCH_FABRIC_DEVFN:
124 return IRQ_IXDP2800_FABRIC;
125 }
126 }
127
128 return -1;
129 } else return IRQ_IXP2000_PCIB; /* Slave NIC interrupt */
130}
131
132static void ixdp2800_pci_postinit(void)
133{
134 struct pci_dev *dev;
135
136 if (ixdp2x00_master_npu()) {
137 dev = pci_find_slot(1, IXDP2800_SLAVE_ENET_DEVFN);
138 pci_remove_bus_device(dev);
139 } else {
140 dev = pci_find_slot(1, IXDP2800_MASTER_ENET_DEVFN);
141 pci_remove_bus_device(dev);
142
143 ixdp2x00_slave_pci_postinit();
144 }
145}
146
147struct hw_pci ixdp2800_pci __initdata = {
148 .nr_controllers = 1,
149 .setup = ixdp2800_pci_setup,
150 .preinit = ixdp2800_pci_preinit,
151 .postinit = ixdp2800_pci_postinit,
152 .scan = ixp2000_pci_scan_bus,
153 .map_irq = ixdp2800_pci_map_irq,
154};
155
156int __init ixdp2800_pci_init(void)
157{
158 if (machine_is_ixdp2800())
159 pci_common_init(&ixdp2800_pci);
160
161 return 0;
162}
163
164subsys_initcall(ixdp2800_pci_init);
165
166void ixdp2800_init_irq(void)
167{
168 ixdp2x00_init_irq(IXDP2800_CPLD_INT_STAT, IXDP2800_CPLD_INT_MASK, IXDP2800_NR_IRQS);
169}
170
171MACHINE_START(IXDP2800, "Intel IXDP2800 Development Platform")
172 MAINTAINER("MontaVista Software, Inc.")
173 BOOT_MEM(0x00000000, IXP2000_UART_PHYS_BASE, IXP2000_UART_VIRT_BASE)
174 BOOT_PARAMS(0x00000100)
175 MAPIO(ixdp2x00_map_io)
176 INITIRQ(ixdp2800_init_irq)
177 .timer = &ixdp2800_timer,
178 INIT_MACHINE(ixdp2x00_init_machine)
179MACHINE_END
180