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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2008-07-15 21:07:59 -0400
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2008-07-15 21:07:59 -0400
commit84c3d4aaec3338201b449034beac41635866bddf (patch)
tree3412951682fb2dd4feb8a5532f8efbaf8b345933 /arch/mips/pci/fixup-vr4133.c
parent43d2548bb2ef7e6d753f91468a746784041e522d (diff)
parentfafa3a3f16723997f039a0193997464d66dafd8f (diff)
Merge commit 'origin/master'
Manual merge of: arch/powerpc/Kconfig arch/powerpc/kernel/stacktrace.c arch/powerpc/mm/slice.c arch/ppc/kernel/smp.c
Diffstat (limited to 'arch/mips/pci/fixup-vr4133.c')
-rw-r--r--arch/mips/pci/fixup-vr4133.c195
1 files changed, 0 insertions, 195 deletions
diff --git a/arch/mips/pci/fixup-vr4133.c b/arch/mips/pci/fixup-vr4133.c
deleted file mode 100644
index de5e5f6bbf4c..000000000000
--- a/arch/mips/pci/fixup-vr4133.c
+++ /dev/null
@@ -1,195 +0,0 @@
1/*
2 * arch/mips/pci/fixup-vr4133.c
3 *
4 * The NEC CMB-VR4133 Board specific PCI fixups.
5 *
6 * Author: Yoichi Yuasa <yyuasa@mvista.com, or source@mvista.com> and
7 * Alex Sapkov <asapkov@ru.mvista.com>
8 *
9 * 2003-2004 (c) MontaVista, Software, Inc. This file is licensed under
10 * the terms of the GNU General Public License version 2. This program
11 * is licensed "as is" without any warranty of any kind, whether express
12 * or implied.
13 *
14 * Modified for support in 2.6
15 * Author: Manish Lachwani (mlachwani@mvista.com)
16 *
17 */
18#include <linux/init.h>
19#include <linux/pci.h>
20#include <linux/kernel.h>
21
22#include <asm/io.h>
23#include <asm/i8259.h>
24#include <asm/vr41xx/cmbvr4133.h>
25
26extern int vr4133_rockhopper;
27extern void ali_m1535plus_init(struct pci_dev *dev);
28extern void ali_m5229_init(struct pci_dev *dev);
29
30/* Do platform specific device initialization at pci_enable_device() time */
31int pcibios_plat_dev_init(struct pci_dev *dev)
32{
33 /*
34 * We have to reset AMD PCnet adapter on Rockhopper since
35 * PMON leaves it enabled and generating interrupts. This leads
36 * to a lock if some PCI device driver later enables the IRQ line
37 * shared with PCnet and there is no AMD PCnet driver to catch its
38 * interrupts.
39 */
40#ifdef CONFIG_ROCKHOPPER
41 if (dev->vendor == PCI_VENDOR_ID_AMD &&
42 dev->device == PCI_DEVICE_ID_AMD_LANCE) {
43 inl(pci_resource_start(dev, 0) + 0x18);
44 }
45#endif
46
47 /*
48 * we have to open the bridges' windows down to 0 because otherwise
49 * we cannot access ISA south bridge I/O registers that get mapped from
50 * 0. for example, 8259 PIC would be unaccessible without that
51 */
52 if(dev->vendor == PCI_VENDOR_ID_INTEL && dev->device == PCI_DEVICE_ID_INTEL_S21152BB) {
53 pci_write_config_byte(dev, PCI_IO_BASE, 0);
54 if(dev->bus->number == 0) {
55 pci_write_config_word(dev, PCI_IO_BASE_UPPER16, 0);
56 } else {
57 pci_write_config_word(dev, PCI_IO_BASE_UPPER16, 1);
58 }
59 }
60
61 return 0;
62}
63
64/*
65 * M1535 IRQ mapping
66 * Feel free to change this, although it shouldn't be needed
67 */
68#define M1535_IRQ_INTA 7
69#define M1535_IRQ_INTB 9
70#define M1535_IRQ_INTC 10
71#define M1535_IRQ_INTD 11
72
73#define M1535_IRQ_USB 9
74#define M1535_IRQ_IDE 14
75#define M1535_IRQ_IDE2 15
76#define M1535_IRQ_PS2 12
77#define M1535_IRQ_RTC 8
78#define M1535_IRQ_FDC 6
79#define M1535_IRQ_AUDIO 5
80#define M1535_IRQ_COM1 4
81#define M1535_IRQ_COM2 4
82#define M1535_IRQ_IRDA 3
83#define M1535_IRQ_KBD 1
84#define M1535_IRQ_TMR 0
85
86/* Rockhopper "slots" assignment; this is hard-coded ... */
87#define ROCKHOPPER_M5451_SLOT 1
88#define ROCKHOPPER_M1535_SLOT 2
89#define ROCKHOPPER_M5229_SLOT 11
90#define ROCKHOPPER_M5237_SLOT 15
91#define ROCKHOPPER_PMU_SLOT 12
92/* ... and hard-wired. */
93#define ROCKHOPPER_PCI1_SLOT 3
94#define ROCKHOPPER_PCI2_SLOT 4
95#define ROCKHOPPER_PCI3_SLOT 5
96#define ROCKHOPPER_PCI4_SLOT 6
97#define ROCKHOPPER_PCNET_SLOT 1
98
99#define M1535_IRQ_MASK(n) (1 << (n))
100
101#define M1535_IRQ_EDGE (M1535_IRQ_MASK(M1535_IRQ_TMR) | \
102 M1535_IRQ_MASK(M1535_IRQ_KBD) | \
103 M1535_IRQ_MASK(M1535_IRQ_COM1) | \
104 M1535_IRQ_MASK(M1535_IRQ_COM2) | \
105 M1535_IRQ_MASK(M1535_IRQ_IRDA) | \
106 M1535_IRQ_MASK(M1535_IRQ_RTC) | \
107 M1535_IRQ_MASK(M1535_IRQ_FDC) | \
108 M1535_IRQ_MASK(M1535_IRQ_PS2))
109
110#define M1535_IRQ_LEVEL (M1535_IRQ_MASK(M1535_IRQ_IDE) | \
111 M1535_IRQ_MASK(M1535_IRQ_USB) | \
112 M1535_IRQ_MASK(M1535_IRQ_INTA) | \
113 M1535_IRQ_MASK(M1535_IRQ_INTB) | \
114 M1535_IRQ_MASK(M1535_IRQ_INTC) | \
115 M1535_IRQ_MASK(M1535_IRQ_INTD))
116
117struct irq_map_entry {
118 u16 bus;
119 u8 slot;
120 u8 irq;
121};
122static struct irq_map_entry int_map[] = {
123 {1, ROCKHOPPER_M5451_SLOT, M1535_IRQ_AUDIO}, /* Audio controller */
124 {1, ROCKHOPPER_PCI1_SLOT, M1535_IRQ_INTD}, /* PCI slot #1 */
125 {1, ROCKHOPPER_PCI2_SLOT, M1535_IRQ_INTC}, /* PCI slot #2 */
126 {1, ROCKHOPPER_M5237_SLOT, M1535_IRQ_USB}, /* USB host controller */
127 {1, ROCKHOPPER_M5229_SLOT, IDE_PRIMARY_IRQ}, /* IDE controller */
128 {2, ROCKHOPPER_PCNET_SLOT, M1535_IRQ_INTD}, /* AMD Am79c973 on-board
129 ethernet */
130 {2, ROCKHOPPER_PCI3_SLOT, M1535_IRQ_INTB}, /* PCI slot #3 */
131 {2, ROCKHOPPER_PCI4_SLOT, M1535_IRQ_INTC} /* PCI slot #4 */
132};
133
134static int pci_intlines[] =
135 { M1535_IRQ_INTA, M1535_IRQ_INTB, M1535_IRQ_INTC, M1535_IRQ_INTD };
136
137/* Determine the Rockhopper IRQ line number for the PCI device */
138int rockhopper_get_irq(struct pci_dev *dev, u8 pin, u8 slot)
139{
140 struct pci_bus *bus;
141 int i;
142
143 bus = dev->bus;
144 if (bus == NULL)
145 return -1;
146
147 for (i = 0; i < ARRAY_SIZE(int_map); i++) {
148 if (int_map[i].bus == bus->number && int_map[i].slot == slot) {
149 int line;
150 for (line = 0; line < 4; line++)
151 if (pci_intlines[line] == int_map[i].irq)
152 break;
153 if (line < 4)
154 return pci_intlines[(line + (pin - 1)) % 4];
155 else
156 return int_map[i].irq;
157 }
158 }
159 return -1;
160}
161
162#ifdef CONFIG_ROCKHOPPER
163void i8259_init(void)
164{
165 init_i8259_irqs();
166
167 outb(0x00, 0x4d0);
168 outb(0x02, 0x4d1); /* USB IRQ9 is level */
169}
170#endif
171
172int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
173{
174 extern int pci_probe_only;
175 pci_probe_only = 1;
176
177#ifdef CONFIG_ROCKHOPPER
178 if( dev->bus->number == 1 && vr4133_rockhopper ) {
179 if(slot == ROCKHOPPER_PCI1_SLOT || slot == ROCKHOPPER_PCI2_SLOT)
180 dev->irq = CMBVR41XX_INTA_IRQ;
181 else
182 dev->irq = rockhopper_get_irq(dev, pin, slot);
183 } else
184 dev->irq = CMBVR41XX_INTA_IRQ;
185#else
186 dev->irq = CMBVR41XX_INTA_IRQ;
187#endif
188
189 return dev->irq;
190}
191
192DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, ali_m1535plus_init);
193DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M5229, ali_m5229_init);
194
195
generated by cgit v1.2.2 (git 2.25.0) at 2024-09-21 10:52:57 -0400