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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-16 20:58:08 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-16 20:58:08 -0400
commit489de30259e667d7bc47da9da44a0270b050cd97 (patch)
tree6807814f443fe2c5d041c3bc3fe3ca8d22a955ca /arch/powerpc/sysdev/fsl_pcie.c
parent1f1c2881f673671539b25686df463518d69c4649 (diff)
parentbf22f6fe2d72b4d7e9035be8ceb340414cf490e3 (diff)
Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (209 commits) [POWERPC] Create add_rtc() function to enable the RTC CMOS driver [POWERPC] Add H_ILLAN_ATTRIBUTES hcall number [POWERPC] xilinxfb: Parameterize xilinxfb platform device registration [POWERPC] Oprofile support for Power 5++ [POWERPC] Enable arbitary speed tty ioctls and split input/output speed [POWERPC] Make drivers/char/hvc_console.c:khvcd() static [POWERPC] Remove dead code for preventing pread() and pwrite() calls [POWERPC] Remove unnecessary #undef printk from prom.c [POWERPC] Fix typo in Ebony default DTS [POWERPC] Check for NULL ppc_md.init_IRQ() before calling [POWERPC] Remove extra return statement [POWERPC] pasemi: Don't auto-select CONFIG_EMBEDDED [POWERPC] pasemi: Rename platform [POWERPC] arch/powerpc/kernel/sysfs.c: Move NUMA exports [POWERPC] Add __read_mostly support for powerpc [POWERPC] Modify sched_clock() to make CONFIG_PRINTK_TIME more sane [POWERPC] Create a dummy zImage if no valid platform has been selected [POWERPC] PS3: Bootwrapper support. [POWERPC] powermac i2c: Use mutex [POWERPC] Schedule removal of arch/ppc ... Fixed up conflicts manually in: Documentation/feature-removal-schedule.txt arch/powerpc/kernel/pci_32.c arch/powerpc/kernel/pci_64.c include/asm-powerpc/pci.h and asked the powerpc people to double-check the result..
Diffstat (limited to 'arch/powerpc/sysdev/fsl_pcie.c')
-rw-r--r--arch/powerpc/sysdev/fsl_pcie.c171
1 files changed, 0 insertions, 171 deletions
diff --git a/arch/powerpc/sysdev/fsl_pcie.c b/arch/powerpc/sysdev/fsl_pcie.c
deleted file mode 100644
index 041c07e8b665..000000000000
--- a/arch/powerpc/sysdev/fsl_pcie.c
+++ /dev/null
@@ -1,171 +0,0 @@
1/*
2 * Support for indirect PCI bridges.
3 *
4 * Copyright (C) 1998 Gabriel Paubert.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 *
11 * "Temporary" MPC8548 Errata file -
12 * The standard indirect_pci code should work with future silicon versions.
13 */
14
15#include <linux/kernel.h>
16#include <linux/pci.h>
17#include <linux/delay.h>
18#include <linux/string.h>
19#include <linux/init.h>
20#include <linux/bootmem.h>
21
22#include <asm/io.h>
23#include <asm/prom.h>
24#include <asm/pci-bridge.h>
25#include <asm/machdep.h>
26
27#define PCI_CFG_OUT out_be32
28
29/* ERRATA PCI-Ex 14 PCIE Controller timeout */
30#define PCIE_FIX out_be32(hose->cfg_addr+0x4, 0x0400ffff)
31
32
33static int
34indirect_read_config_pcie(struct pci_bus *bus, unsigned int devfn, int offset,
35 int len, u32 *val)
36{
37 struct pci_controller *hose = bus->sysdata;
38 volatile void __iomem *cfg_data;
39 u32 temp;
40
41 if (ppc_md.pci_exclude_device)
42 if (ppc_md.pci_exclude_device(bus->number, devfn))
43 return PCIBIOS_DEVICE_NOT_FOUND;
44
45 /* Possible artifact of CDCpp50937 needs further investigation */
46 if (devfn != 0x0 && bus->number == 0xff)
47 return PCIBIOS_DEVICE_NOT_FOUND;
48
49 PCIE_FIX;
50 if (bus->number == 0xff) {
51 PCI_CFG_OUT(hose->cfg_addr,
52 (0x80000000 | ((offset & 0xf00) << 16) |
53 ((bus->number - hose->bus_offset) << 16)
54 | (devfn << 8) | ((offset & 0xfc) )));
55 } else {
56 PCI_CFG_OUT(hose->cfg_addr,
57 (0x80000001 | ((offset & 0xf00) << 16) |
58 ((bus->number - hose->bus_offset) << 16)
59 | (devfn << 8) | ((offset & 0xfc) )));
60 }
61
62 /*
63 * Note: the caller has already checked that offset is
64 * suitably aligned and that len is 1, 2 or 4.
65 */
66 /* ERRATA PCI-Ex 12 - Configuration Address/Data Alignment */
67 cfg_data = hose->cfg_data;
68 PCIE_FIX;
69 temp = in_le32(cfg_data);
70 switch (len) {
71 case 1:
72 *val = (temp >> (((offset & 3))*8)) & 0xff;
73 break;
74 case 2:
75 *val = (temp >> (((offset & 3))*8)) & 0xffff;
76 break;
77 default:
78 *val = temp;
79 break;
80 }
81 return PCIBIOS_SUCCESSFUL;
82}
83
84static int
85indirect_write_config_pcie(struct pci_bus *bus, unsigned int devfn, int offset,
86 int len, u32 val)
87{
88 struct pci_controller *hose = bus->sysdata;
89 volatile void __iomem *cfg_data;
90 u32 temp;
91
92 if (ppc_md.pci_exclude_device)
93 if (ppc_md.pci_exclude_device(bus->number, devfn))
94 return PCIBIOS_DEVICE_NOT_FOUND;
95
96 /* Possible artifact of CDCpp50937 needs further investigation */
97 if (devfn != 0x0 && bus->number == 0xff)
98 return PCIBIOS_DEVICE_NOT_FOUND;
99
100 PCIE_FIX;
101 if (bus->number == 0xff) {
102 PCI_CFG_OUT(hose->cfg_addr,
103 (0x80000000 | ((offset & 0xf00) << 16) |
104 ((bus->number - hose->bus_offset) << 16)
105 | (devfn << 8) | ((offset & 0xfc) )));
106 } else {
107 PCI_CFG_OUT(hose->cfg_addr,
108 (0x80000001 | ((offset & 0xf00) << 16) |
109 ((bus->number - hose->bus_offset) << 16)
110 | (devfn << 8) | ((offset & 0xfc) )));
111 }
112
113 /*
114 * Note: the caller has already checked that offset is
115 * suitably aligned and that len is 1, 2 or 4.
116 */
117 /* ERRATA PCI-Ex 12 - Configuration Address/Data Alignment */
118 cfg_data = hose->cfg_data;
119 switch (len) {
120 case 1:
121 PCIE_FIX;
122 temp = in_le32(cfg_data);
123 temp = (temp & ~(0xff << ((offset & 3) * 8))) |
124 (val << ((offset & 3) * 8));
125 PCIE_FIX;
126 out_le32(cfg_data, temp);
127 break;
128 case 2:
129 PCIE_FIX;
130 temp = in_le32(cfg_data);
131 temp = (temp & ~(0xffff << ((offset & 3) * 8)));
132 temp |= (val << ((offset & 3) * 8)) ;
133 PCIE_FIX;
134 out_le32(cfg_data, temp);
135 break;
136 default:
137 PCIE_FIX;
138 out_le32(cfg_data, val);
139 break;
140 }
141 PCIE_FIX;
142 return PCIBIOS_SUCCESSFUL;
143}
144
145static struct pci_ops indirect_pcie_ops = {
146 indirect_read_config_pcie,
147 indirect_write_config_pcie
148};
149
150void __init
151setup_indirect_pcie_nomap(struct pci_controller* hose, void __iomem * cfg_addr,
152 void __iomem * cfg_data)
153{
154 hose->cfg_addr = cfg_addr;
155 hose->cfg_data = cfg_data;
156 hose->ops = &indirect_pcie_ops;
157}
158
159void __init
160setup_indirect_pcie(struct pci_controller* hose, u32 cfg_addr, u32 cfg_data)
161{
162 unsigned long base = cfg_addr & PAGE_MASK;
163 void __iomem *mbase, *addr, *data;
164
165 mbase = ioremap(base, PAGE_SIZE);
166 addr = mbase + (cfg_addr & ~PAGE_MASK);
167 if ((cfg_data & PAGE_MASK) != base)
168 mbase = ioremap(cfg_data & PAGE_MASK, PAGE_SIZE);
169 data = mbase + (cfg_data & ~PAGE_MASK);
170 setup_indirect_pcie_nomap(hose, addr, data);
171}
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-05 18:15:36 -0500