diff options
Diffstat (limited to 'arch/mips/pci/ops-tx4927.c')
-rw-r--r-- | arch/mips/pci/ops-tx4927.c | 514 |
1 files changed, 358 insertions, 156 deletions
diff --git a/arch/mips/pci/ops-tx4927.c b/arch/mips/pci/ops-tx4927.c index 54730eee451b..c6b49bccd274 100644 --- a/arch/mips/pci/ops-tx4927.c +++ b/arch/mips/pci/ops-tx4927.c | |||
@@ -1,206 +1,408 @@ | |||
1 | /* | 1 | /* |
2 | * Copyright 2001 MontaVista Software Inc. | 2 | * Define the pci_ops for the PCIC on Toshiba TX4927, TX4938, etc. |
3 | * Author: MontaVista Software, Inc. | ||
4 | * ahennessy@mvista.com | ||
5 | * | 3 | * |
6 | * Copyright (C) 2000-2001 Toshiba Corporation | 4 | * Based on linux/arch/mips/pci/ops-tx4938.c, |
7 | * Copyright (C) 2004 by Ralf Baechle (ralf@linux-mips.org) | 5 | * linux/arch/mips/pci/fixup-rbtx4938.c, |
8 | * | 6 | * linux/arch/mips/txx9/rbtx4938/setup.c, |
9 | * Based on arch/mips/ddb5xxx/ddb5477/pci_ops.c | 7 | * and RBTX49xx patch from CELF patch archive. |
10 | * | ||
11 | * Define the pci_ops for the Toshiba rbtx4927 | ||
12 | * | ||
13 | * Much of the code is derived from the original DDB5074 port by | ||
14 | * Geert Uytterhoeven <geert@sonycom.com> | ||
15 | * | ||
16 | * Copyright 2004 MontaVista Software Inc. | ||
17 | * Author: Manish Lachwani (mlachwani@mvista.com) | ||
18 | * | ||
19 | * This program is free software; you can redistribute it and/or modify it | ||
20 | * under the terms of the GNU General Public License as published by the | ||
21 | * Free Software Foundation; either version 2 of the License, or (at your | ||
22 | * option) any later version. | ||
23 | * | 8 | * |
24 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED | 9 | * 2003-2005 (c) MontaVista Software, Inc. |
25 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | 10 | * Copyright (C) 2004 by Ralf Baechle (ralf@linux-mips.org) |
26 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN | 11 | * (C) Copyright TOSHIBA CORPORATION 2000-2001, 2004-2007 |
27 | * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | ||
28 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | ||
29 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF | ||
30 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON | ||
31 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
32 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | ||
33 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
34 | * | 12 | * |
35 | * You should have received a copy of the GNU General Public License along | 13 | * This program is free software; you can redistribute it and/or modify it |
36 | * with this program; if not, write to the Free Software Foundation, Inc., | 14 | * under the terms of the GNU General Public License as published by the |
37 | * 675 Mass Ave, Cambridge, MA 02139, USA. | 15 | * Free Software Foundation; either version 2 of the License, or (at your |
16 | * option) any later version. | ||
38 | */ | 17 | */ |
39 | #include <linux/types.h> | ||
40 | #include <linux/pci.h> | ||
41 | #include <linux/kernel.h> | 18 | #include <linux/kernel.h> |
42 | #include <linux/init.h> | 19 | #include <asm/txx9/tx4927pcic.h> |
43 | #include <asm/txx9/tx4927.h> | ||
44 | |||
45 | /* initialize in setup */ | ||
46 | struct resource pci_io_resource = { | ||
47 | .name = "TX4927 PCI IO SPACE", | ||
48 | .start = 0x1000, | ||
49 | .end = (0x1000 + (TX4927_PCIIO_SIZE)) - 1, | ||
50 | .flags = IORESOURCE_IO | ||
51 | }; | ||
52 | 20 | ||
53 | /* initialize in setup */ | 21 | static struct { |
54 | struct resource pci_mem_resource = { | 22 | struct pci_controller *channel; |
55 | .name = "TX4927 PCI MEM SPACE", | 23 | struct tx4927_pcic_reg __iomem *pcicptr; |
56 | .start = TX4927_PCIMEM, | 24 | } pcicptrs[2]; /* TX4938 has 2 pcic */ |
57 | .end = TX4927_PCIMEM + TX4927_PCIMEM_SIZE - 1, | 25 | |
58 | .flags = IORESOURCE_MEM | 26 | static void __init set_tx4927_pcicptr(struct pci_controller *channel, |
59 | }; | 27 | struct tx4927_pcic_reg __iomem *pcicptr) |
28 | { | ||
29 | int i; | ||
30 | |||
31 | for (i = 0; i < ARRAY_SIZE(pcicptrs); i++) { | ||
32 | if (pcicptrs[i].channel == channel) { | ||
33 | pcicptrs[i].pcicptr = pcicptr; | ||
34 | return; | ||
35 | } | ||
36 | } | ||
37 | for (i = 0; i < ARRAY_SIZE(pcicptrs); i++) { | ||
38 | if (!pcicptrs[i].channel) { | ||
39 | pcicptrs[i].channel = channel; | ||
40 | pcicptrs[i].pcicptr = pcicptr; | ||
41 | return; | ||
42 | } | ||
43 | } | ||
44 | BUG(); | ||
45 | } | ||
60 | 46 | ||
61 | static int mkaddr(int bus, int dev_fn, int where, int *flagsp) | 47 | struct tx4927_pcic_reg __iomem *get_tx4927_pcicptr( |
48 | struct pci_controller *channel) | ||
62 | { | 49 | { |
63 | if (bus > 0) { | 50 | int i; |
64 | /* Type 1 configuration */ | ||
65 | tx4927_pcicptr->g2pcfgadrs = ((bus & 0xff) << 0x10) | | ||
66 | ((dev_fn & 0xff) << 0x08) | (where & 0xfc) | 1; | ||
67 | } else { | ||
68 | if (dev_fn >= PCI_DEVFN(TX4927_PCIC_MAX_DEVNU, 0)) | ||
69 | return -1; | ||
70 | 51 | ||
71 | /* Type 0 configuration */ | 52 | for (i = 0; i < ARRAY_SIZE(pcicptrs); i++) { |
72 | tx4927_pcicptr->g2pcfgadrs = ((bus & 0xff) << 0x10) | | 53 | if (pcicptrs[i].channel == channel) |
73 | ((dev_fn & 0xff) << 0x08) | (where & 0xfc); | 54 | return pcicptrs[i].pcicptr; |
74 | } | 55 | } |
56 | return NULL; | ||
57 | } | ||
58 | |||
59 | static int mkaddr(struct pci_bus *bus, unsigned int devfn, int where, | ||
60 | struct tx4927_pcic_reg __iomem *pcicptr) | ||
61 | { | ||
62 | if (bus->parent == NULL && | ||
63 | devfn >= PCI_DEVFN(TX4927_PCIC_MAX_DEVNU, 0)) | ||
64 | return -1; | ||
65 | __raw_writel(((bus->number & 0xff) << 0x10) | ||
66 | | ((devfn & 0xff) << 0x08) | (where & 0xfc) | ||
67 | | (bus->parent ? 1 : 0), | ||
68 | &pcicptr->g2pcfgadrs); | ||
75 | /* clear M_ABORT and Disable M_ABORT Int. */ | 69 | /* clear M_ABORT and Disable M_ABORT Int. */ |
76 | tx4927_pcicptr->pcistatus = | 70 | __raw_writel((__raw_readl(&pcicptr->pcistatus) & 0x0000ffff) |
77 | (tx4927_pcicptr->pcistatus & 0x0000ffff) | | 71 | | (PCI_STATUS_REC_MASTER_ABORT << 16), |
78 | (PCI_STATUS_REC_MASTER_ABORT << 16); | 72 | &pcicptr->pcistatus); |
79 | tx4927_pcicptr->pcimask &= ~PCI_STATUS_REC_MASTER_ABORT; | ||
80 | return 0; | 73 | return 0; |
81 | } | 74 | } |
82 | 75 | ||
83 | static int check_abort(int flags) | 76 | static int check_abort(struct tx4927_pcic_reg __iomem *pcicptr) |
84 | { | 77 | { |
85 | int code = PCIBIOS_SUCCESSFUL; | 78 | int code = PCIBIOS_SUCCESSFUL; |
86 | if (tx4927_pcicptr-> | 79 | |
87 | pcistatus & (PCI_STATUS_REC_MASTER_ABORT << 16)) { | 80 | /* wait write cycle completion before checking error status */ |
88 | tx4927_pcicptr->pcistatus = | 81 | while (__raw_readl(&pcicptr->pcicstatus) & TX4927_PCIC_PCICSTATUS_IWB) |
89 | (tx4927_pcicptr-> | 82 | ; |
90 | pcistatus & 0x0000ffff) | (PCI_STATUS_REC_MASTER_ABORT | 83 | if (__raw_readl(&pcicptr->pcistatus) |
91 | << 16); | 84 | & (PCI_STATUS_REC_MASTER_ABORT << 16)) { |
92 | tx4927_pcicptr->pcimask |= PCI_STATUS_REC_MASTER_ABORT; | 85 | __raw_writel((__raw_readl(&pcicptr->pcistatus) & 0x0000ffff) |
86 | | (PCI_STATUS_REC_MASTER_ABORT << 16), | ||
87 | &pcicptr->pcistatus); | ||
93 | code = PCIBIOS_DEVICE_NOT_FOUND; | 88 | code = PCIBIOS_DEVICE_NOT_FOUND; |
94 | } | 89 | } |
95 | return code; | 90 | return code; |
96 | } | 91 | } |
97 | 92 | ||
98 | static int tx4927_pcibios_read_config(struct pci_bus *bus, unsigned int devfn, int where, | 93 | static u8 icd_readb(int offset, struct tx4927_pcic_reg __iomem *pcicptr) |
99 | int size, u32 * val) | 94 | { |
95 | #ifdef __BIG_ENDIAN | ||
96 | offset ^= 3; | ||
97 | #endif | ||
98 | return __raw_readb((void __iomem *)&pcicptr->g2pcfgdata + offset); | ||
99 | } | ||
100 | static u16 icd_readw(int offset, struct tx4927_pcic_reg __iomem *pcicptr) | ||
101 | { | ||
102 | #ifdef __BIG_ENDIAN | ||
103 | offset ^= 2; | ||
104 | #endif | ||
105 | return __raw_readw((void __iomem *)&pcicptr->g2pcfgdata + offset); | ||
106 | } | ||
107 | static u32 icd_readl(struct tx4927_pcic_reg __iomem *pcicptr) | ||
108 | { | ||
109 | return __raw_readl(&pcicptr->g2pcfgdata); | ||
110 | } | ||
111 | static void icd_writeb(u8 val, int offset, | ||
112 | struct tx4927_pcic_reg __iomem *pcicptr) | ||
113 | { | ||
114 | #ifdef __BIG_ENDIAN | ||
115 | offset ^= 3; | ||
116 | #endif | ||
117 | __raw_writeb(val, (void __iomem *)&pcicptr->g2pcfgdata + offset); | ||
118 | } | ||
119 | static void icd_writew(u16 val, int offset, | ||
120 | struct tx4927_pcic_reg __iomem *pcicptr) | ||
121 | { | ||
122 | #ifdef __BIG_ENDIAN | ||
123 | offset ^= 2; | ||
124 | #endif | ||
125 | __raw_writew(val, (void __iomem *)&pcicptr->g2pcfgdata + offset); | ||
126 | } | ||
127 | static void icd_writel(u32 val, struct tx4927_pcic_reg __iomem *pcicptr) | ||
100 | { | 128 | { |
101 | int flags, retval, dev, busno, func; | 129 | __raw_writel(val, &pcicptr->g2pcfgdata); |
130 | } | ||
102 | 131 | ||
103 | busno = bus->number; | 132 | static struct tx4927_pcic_reg __iomem *pci_bus_to_pcicptr(struct pci_bus *bus) |
104 | dev = PCI_SLOT(devfn); | 133 | { |
105 | func = PCI_FUNC(devfn); | 134 | struct pci_controller *channel = bus->sysdata; |
135 | return get_tx4927_pcicptr(channel); | ||
136 | } | ||
106 | 137 | ||
107 | /* check if the bus is top-level */ | 138 | static int tx4927_pci_config_read(struct pci_bus *bus, unsigned int devfn, |
108 | if (bus->parent != NULL) { | 139 | int where, int size, u32 *val) |
109 | busno = bus->number; | 140 | { |
110 | } else { | 141 | struct tx4927_pcic_reg __iomem *pcicptr = pci_bus_to_pcicptr(bus); |
111 | busno = 0; | ||
112 | } | ||
113 | 142 | ||
114 | if (mkaddr(busno, devfn, where, &flags)) | 143 | if (mkaddr(bus, devfn, where, pcicptr)) { |
144 | *val = 0xffffffff; | ||
115 | return -1; | 145 | return -1; |
116 | 146 | } | |
117 | switch (size) { | 147 | switch (size) { |
118 | case 1: | 148 | case 1: |
119 | *val = *(volatile u8 *) ((unsigned long) & tx4927_pcicptr-> | 149 | *val = icd_readb(where & 3, pcicptr); |
120 | g2pcfgdata | | ||
121 | #ifdef __LITTLE_ENDIAN | ||
122 | (where & 3)); | ||
123 | #else | ||
124 | ((where & 0x3) ^ 0x3)); | ||
125 | #endif | ||
126 | break; | 150 | break; |
127 | case 2: | 151 | case 2: |
128 | *val = *(volatile u16 *) ((unsigned long) & tx4927_pcicptr-> | 152 | *val = icd_readw(where & 3, pcicptr); |
129 | g2pcfgdata | | ||
130 | #ifdef __LITTLE_ENDIAN | ||
131 | (where & 3)); | ||
132 | #else | ||
133 | ((where & 0x3) ^ 0x2)); | ||
134 | #endif | ||
135 | break; | ||
136 | case 4: | ||
137 | *val = tx4927_pcicptr->g2pcfgdata; | ||
138 | break; | 153 | break; |
154 | default: | ||
155 | *val = icd_readl(pcicptr); | ||
139 | } | 156 | } |
157 | return check_abort(pcicptr); | ||
158 | } | ||
140 | 159 | ||
141 | retval = check_abort(flags); | 160 | static int tx4927_pci_config_write(struct pci_bus *bus, unsigned int devfn, |
142 | if (retval == PCIBIOS_DEVICE_NOT_FOUND) | 161 | int where, int size, u32 val) |
143 | *val = 0xffffffff; | 162 | { |
163 | struct tx4927_pcic_reg __iomem *pcicptr = pci_bus_to_pcicptr(bus); | ||
144 | 164 | ||
145 | return retval; | 165 | if (mkaddr(bus, devfn, where, pcicptr)) |
166 | return -1; | ||
167 | switch (size) { | ||
168 | case 1: | ||
169 | icd_writeb(val, where & 3, pcicptr); | ||
170 | break; | ||
171 | case 2: | ||
172 | icd_writew(val, where & 3, pcicptr); | ||
173 | break; | ||
174 | default: | ||
175 | icd_writel(val, pcicptr); | ||
176 | } | ||
177 | return check_abort(pcicptr); | ||
146 | } | 178 | } |
147 | 179 | ||
148 | static int tx4927_pcibios_write_config(struct pci_bus *bus, unsigned int devfn, int where, | 180 | static struct pci_ops tx4927_pci_ops = { |
149 | int size, u32 val) | 181 | .read = tx4927_pci_config_read, |
182 | .write = tx4927_pci_config_write, | ||
183 | }; | ||
184 | |||
185 | static struct { | ||
186 | u8 trdyto; | ||
187 | u8 retryto; | ||
188 | u16 gbwc; | ||
189 | } tx4927_pci_opts __devinitdata = { | ||
190 | .trdyto = 0, | ||
191 | .retryto = 0, | ||
192 | .gbwc = 0xfe0, /* 4064 GBUSCLK for CCFG.GTOT=0b11 */ | ||
193 | }; | ||
194 | |||
195 | void __init tx4927_pcic_setup(struct tx4927_pcic_reg __iomem *pcicptr, | ||
196 | struct pci_controller *channel, int extarb) | ||
150 | { | 197 | { |
151 | int flags, dev, busno, func; | 198 | int i; |
152 | busno = bus->number; | 199 | unsigned long flags; |
153 | dev = PCI_SLOT(devfn); | ||
154 | func = PCI_FUNC(devfn); | ||
155 | 200 | ||
156 | /* check if the bus is top-level */ | 201 | set_tx4927_pcicptr(channel, pcicptr); |
157 | if (bus->parent != NULL) { | ||
158 | busno = bus->number; | ||
159 | } else { | ||
160 | busno = 0; | ||
161 | } | ||
162 | 202 | ||
163 | if (mkaddr(busno, devfn, where, &flags)) | 203 | if (!channel->pci_ops) |
164 | return -1; | 204 | printk(KERN_INFO |
205 | "PCIC -- DID:%04x VID:%04x RID:%02x Arbiter:%s\n", | ||
206 | __raw_readl(&pcicptr->pciid) >> 16, | ||
207 | __raw_readl(&pcicptr->pciid) & 0xffff, | ||
208 | __raw_readl(&pcicptr->pciccrev) & 0xff, | ||
209 | extarb ? "External" : "Internal"); | ||
210 | channel->pci_ops = &tx4927_pci_ops; | ||
165 | 211 | ||
166 | switch (size) { | 212 | local_irq_save(flags); |
167 | case 1: | 213 | |
168 | *(volatile u8 *) ((unsigned long) & tx4927_pcicptr-> | 214 | /* Disable All Initiator Space */ |
169 | g2pcfgdata | | 215 | __raw_writel(__raw_readl(&pcicptr->pciccfg) |
170 | #ifdef __LITTLE_ENDIAN | 216 | & ~(TX4927_PCIC_PCICCFG_G2PMEN(0) |
171 | (where & 3)) = val; | 217 | | TX4927_PCIC_PCICCFG_G2PMEN(1) |
218 | | TX4927_PCIC_PCICCFG_G2PMEN(2) | ||
219 | | TX4927_PCIC_PCICCFG_G2PIOEN), | ||
220 | &pcicptr->pciccfg); | ||
221 | |||
222 | /* GB->PCI mappings */ | ||
223 | __raw_writel((channel->io_resource->end - channel->io_resource->start) | ||
224 | >> 4, | ||
225 | &pcicptr->g2piomask); | ||
226 | ____raw_writeq((channel->io_resource->start + | ||
227 | channel->io_map_base - IO_BASE) | | ||
228 | #ifdef __BIG_ENDIAN | ||
229 | TX4927_PCIC_G2PIOGBASE_ECHG | ||
172 | #else | 230 | #else |
173 | ((where & 0x3) ^ 0x3)) = val; | 231 | TX4927_PCIC_G2PIOGBASE_BSDIS |
174 | #endif | 232 | #endif |
175 | break; | 233 | , &pcicptr->g2piogbase); |
176 | 234 | ____raw_writeq(channel->io_resource->start - channel->io_offset, | |
177 | case 2: | 235 | &pcicptr->g2piopbase); |
178 | *(volatile u16 *) ((unsigned long) & tx4927_pcicptr-> | 236 | for (i = 0; i < 3; i++) { |
179 | g2pcfgdata | | 237 | __raw_writel(0, &pcicptr->g2pmmask[i]); |
180 | #ifdef __LITTLE_ENDIAN | 238 | ____raw_writeq(0, &pcicptr->g2pmgbase[i]); |
181 | (where & 3)) = val; | 239 | ____raw_writeq(0, &pcicptr->g2pmpbase[i]); |
240 | } | ||
241 | if (channel->mem_resource->end) { | ||
242 | __raw_writel((channel->mem_resource->end | ||
243 | - channel->mem_resource->start) >> 4, | ||
244 | &pcicptr->g2pmmask[0]); | ||
245 | ____raw_writeq(channel->mem_resource->start | | ||
246 | #ifdef __BIG_ENDIAN | ||
247 | TX4927_PCIC_G2PMnGBASE_ECHG | ||
182 | #else | 248 | #else |
183 | ((where & 0x3) ^ 0x2)) = val; | 249 | TX4927_PCIC_G2PMnGBASE_BSDIS |
184 | #endif | 250 | #endif |
185 | break; | 251 | , &pcicptr->g2pmgbase[0]); |
186 | case 4: | 252 | ____raw_writeq(channel->mem_resource->start - |
187 | tx4927_pcicptr->g2pcfgdata = val; | 253 | channel->mem_offset, |
188 | break; | 254 | &pcicptr->g2pmpbase[0]); |
255 | } | ||
256 | /* PCI->GB mappings (I/O 256B) */ | ||
257 | __raw_writel(0, &pcicptr->p2giopbase); /* 256B */ | ||
258 | ____raw_writeq(0, &pcicptr->p2giogbase); | ||
259 | /* PCI->GB mappings (MEM 512MB (64MB on R1.x)) */ | ||
260 | __raw_writel(0, &pcicptr->p2gm0plbase); | ||
261 | __raw_writel(0, &pcicptr->p2gm0pubase); | ||
262 | ____raw_writeq(TX4927_PCIC_P2GMnGBASE_TMEMEN | | ||
263 | #ifdef __BIG_ENDIAN | ||
264 | TX4927_PCIC_P2GMnGBASE_TECHG | ||
265 | #else | ||
266 | TX4927_PCIC_P2GMnGBASE_TBSDIS | ||
267 | #endif | ||
268 | , &pcicptr->p2gmgbase[0]); | ||
269 | /* PCI->GB mappings (MEM 16MB) */ | ||
270 | __raw_writel(0xffffffff, &pcicptr->p2gm1plbase); | ||
271 | __raw_writel(0xffffffff, &pcicptr->p2gm1pubase); | ||
272 | ____raw_writeq(0, &pcicptr->p2gmgbase[1]); | ||
273 | /* PCI->GB mappings (MEM 1MB) */ | ||
274 | __raw_writel(0xffffffff, &pcicptr->p2gm2pbase); /* 1MB */ | ||
275 | ____raw_writeq(0, &pcicptr->p2gmgbase[2]); | ||
276 | |||
277 | /* Clear all (including IRBER) except for GBWC */ | ||
278 | __raw_writel((tx4927_pci_opts.gbwc << 16) | ||
279 | & TX4927_PCIC_PCICCFG_GBWC_MASK, | ||
280 | &pcicptr->pciccfg); | ||
281 | /* Enable Initiator Memory Space */ | ||
282 | if (channel->mem_resource->end) | ||
283 | __raw_writel(__raw_readl(&pcicptr->pciccfg) | ||
284 | | TX4927_PCIC_PCICCFG_G2PMEN(0), | ||
285 | &pcicptr->pciccfg); | ||
286 | /* Enable Initiator I/O Space */ | ||
287 | if (channel->io_resource->end) | ||
288 | __raw_writel(__raw_readl(&pcicptr->pciccfg) | ||
289 | | TX4927_PCIC_PCICCFG_G2PIOEN, | ||
290 | &pcicptr->pciccfg); | ||
291 | /* Enable Initiator Config */ | ||
292 | __raw_writel(__raw_readl(&pcicptr->pciccfg) | ||
293 | | TX4927_PCIC_PCICCFG_ICAEN | TX4927_PCIC_PCICCFG_TCAR, | ||
294 | &pcicptr->pciccfg); | ||
295 | |||
296 | /* Do not use MEMMUL, MEMINF: YMFPCI card causes M_ABORT. */ | ||
297 | __raw_writel(0, &pcicptr->pcicfg1); | ||
298 | |||
299 | __raw_writel((__raw_readl(&pcicptr->g2ptocnt) & ~0xffff) | ||
300 | | (tx4927_pci_opts.trdyto & 0xff) | ||
301 | | ((tx4927_pci_opts.retryto & 0xff) << 8), | ||
302 | &pcicptr->g2ptocnt); | ||
303 | |||
304 | /* Clear All Local Bus Status */ | ||
305 | __raw_writel(TX4927_PCIC_PCICSTATUS_ALL, &pcicptr->pcicstatus); | ||
306 | /* Enable All Local Bus Interrupts */ | ||
307 | __raw_writel(TX4927_PCIC_PCICSTATUS_ALL, &pcicptr->pcicmask); | ||
308 | /* Clear All Initiator Status */ | ||
309 | __raw_writel(TX4927_PCIC_G2PSTATUS_ALL, &pcicptr->g2pstatus); | ||
310 | /* Enable All Initiator Interrupts */ | ||
311 | __raw_writel(TX4927_PCIC_G2PSTATUS_ALL, &pcicptr->g2pmask); | ||
312 | /* Clear All PCI Status Error */ | ||
313 | __raw_writel((__raw_readl(&pcicptr->pcistatus) & 0x0000ffff) | ||
314 | | (TX4927_PCIC_PCISTATUS_ALL << 16), | ||
315 | &pcicptr->pcistatus); | ||
316 | /* Enable All PCI Status Error Interrupts */ | ||
317 | __raw_writel(TX4927_PCIC_PCISTATUS_ALL, &pcicptr->pcimask); | ||
318 | |||
319 | if (!extarb) { | ||
320 | /* Reset Bus Arbiter */ | ||
321 | __raw_writel(TX4927_PCIC_PBACFG_RPBA, &pcicptr->pbacfg); | ||
322 | __raw_writel(0, &pcicptr->pbabm); | ||
323 | /* Enable Bus Arbiter */ | ||
324 | __raw_writel(TX4927_PCIC_PBACFG_PBAEN, &pcicptr->pbacfg); | ||
189 | } | 325 | } |
190 | 326 | ||
191 | return check_abort(flags); | 327 | __raw_writel(PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY |
328 | | PCI_COMMAND_PARITY | PCI_COMMAND_SERR, | ||
329 | &pcicptr->pcistatus); | ||
330 | local_irq_restore(flags); | ||
331 | |||
332 | printk(KERN_DEBUG | ||
333 | "PCI: COMMAND=%04x,PCIMASK=%04x," | ||
334 | "TRDYTO=%02x,RETRYTO=%02x,GBWC=%03x\n", | ||
335 | __raw_readl(&pcicptr->pcistatus) & 0xffff, | ||
336 | __raw_readl(&pcicptr->pcimask) & 0xffff, | ||
337 | __raw_readl(&pcicptr->g2ptocnt) & 0xff, | ||
338 | (__raw_readl(&pcicptr->g2ptocnt) & 0xff00) >> 8, | ||
339 | (__raw_readl(&pcicptr->pciccfg) >> 16) & 0xfff); | ||
192 | } | 340 | } |
193 | 341 | ||
194 | struct pci_ops tx4927_pci_ops = { | 342 | static void tx4927_report_pcic_status1(struct tx4927_pcic_reg __iomem *pcicptr) |
195 | tx4927_pcibios_read_config, | 343 | { |
196 | tx4927_pcibios_write_config | 344 | __u16 pcistatus = (__u16)(__raw_readl(&pcicptr->pcistatus) >> 16); |
197 | }; | 345 | __u32 g2pstatus = __raw_readl(&pcicptr->g2pstatus); |
346 | __u32 pcicstatus = __raw_readl(&pcicptr->pcicstatus); | ||
347 | static struct { | ||
348 | __u32 flag; | ||
349 | const char *str; | ||
350 | } pcistat_tbl[] = { | ||
351 | { PCI_STATUS_DETECTED_PARITY, "DetectedParityError" }, | ||
352 | { PCI_STATUS_SIG_SYSTEM_ERROR, "SignaledSystemError" }, | ||
353 | { PCI_STATUS_REC_MASTER_ABORT, "ReceivedMasterAbort" }, | ||
354 | { PCI_STATUS_REC_TARGET_ABORT, "ReceivedTargetAbort" }, | ||
355 | { PCI_STATUS_SIG_TARGET_ABORT, "SignaledTargetAbort" }, | ||
356 | { PCI_STATUS_PARITY, "MasterParityError" }, | ||
357 | }, g2pstat_tbl[] = { | ||
358 | { TX4927_PCIC_G2PSTATUS_TTOE, "TIOE" }, | ||
359 | { TX4927_PCIC_G2PSTATUS_RTOE, "RTOE" }, | ||
360 | }, pcicstat_tbl[] = { | ||
361 | { TX4927_PCIC_PCICSTATUS_PME, "PME" }, | ||
362 | { TX4927_PCIC_PCICSTATUS_TLB, "TLB" }, | ||
363 | { TX4927_PCIC_PCICSTATUS_NIB, "NIB" }, | ||
364 | { TX4927_PCIC_PCICSTATUS_ZIB, "ZIB" }, | ||
365 | { TX4927_PCIC_PCICSTATUS_PERR, "PERR" }, | ||
366 | { TX4927_PCIC_PCICSTATUS_SERR, "SERR" }, | ||
367 | { TX4927_PCIC_PCICSTATUS_GBE, "GBE" }, | ||
368 | { TX4927_PCIC_PCICSTATUS_IWB, "IWB" }, | ||
369 | }; | ||
370 | int i, cont; | ||
198 | 371 | ||
199 | /* | 372 | printk(KERN_ERR ""); |
200 | * h/w only supports devices 0x00 to 0x14 | 373 | if (pcistatus & TX4927_PCIC_PCISTATUS_ALL) { |
201 | */ | 374 | printk(KERN_CONT "pcistat:%04x(", pcistatus); |
202 | struct pci_controller tx4927_controller = { | 375 | for (i = 0, cont = 0; i < ARRAY_SIZE(pcistat_tbl); i++) |
203 | .pci_ops = &tx4927_pci_ops, | 376 | if (pcistatus & pcistat_tbl[i].flag) |
204 | .io_resource = &pci_io_resource, | 377 | printk(KERN_CONT "%s%s", |
205 | .mem_resource = &pci_mem_resource, | 378 | cont++ ? " " : "", pcistat_tbl[i].str); |
206 | }; | 379 | printk(KERN_CONT ") "); |
380 | } | ||
381 | if (g2pstatus & TX4927_PCIC_G2PSTATUS_ALL) { | ||
382 | printk(KERN_CONT "g2pstatus:%08x(", g2pstatus); | ||
383 | for (i = 0, cont = 0; i < ARRAY_SIZE(g2pstat_tbl); i++) | ||
384 | if (g2pstatus & g2pstat_tbl[i].flag) | ||
385 | printk(KERN_CONT "%s%s", | ||
386 | cont++ ? " " : "", g2pstat_tbl[i].str); | ||
387 | printk(KERN_CONT ") "); | ||
388 | } | ||
389 | if (pcicstatus & TX4927_PCIC_PCICSTATUS_ALL) { | ||
390 | printk(KERN_CONT "pcicstatus:%08x(", pcicstatus); | ||
391 | for (i = 0, cont = 0; i < ARRAY_SIZE(pcicstat_tbl); i++) | ||
392 | if (pcicstatus & pcicstat_tbl[i].flag) | ||
393 | printk(KERN_CONT "%s%s", | ||
394 | cont++ ? " " : "", pcicstat_tbl[i].str); | ||
395 | printk(KERN_CONT ")"); | ||
396 | } | ||
397 | printk(KERN_CONT "\n"); | ||
398 | } | ||
399 | |||
400 | void tx4927_report_pcic_status(void) | ||
401 | { | ||
402 | int i; | ||
403 | |||
404 | for (i = 0; i < ARRAY_SIZE(pcicptrs); i++) { | ||
405 | if (pcicptrs[i].pcicptr) | ||
406 | tx4927_report_pcic_status1(pcicptrs[i].pcicptr); | ||
407 | } | ||
408 | } | ||