diff options
Diffstat (limited to 'arch/arm/mach-orion/pci.c')
-rw-r--r-- | arch/arm/mach-orion/pci.c | 343 |
1 files changed, 86 insertions, 257 deletions
diff --git a/arch/arm/mach-orion/pci.c b/arch/arm/mach-orion/pci.c index cfd3d064c209..5240a245c7e4 100644 --- a/arch/arm/mach-orion/pci.c +++ b/arch/arm/mach-orion/pci.c | |||
@@ -14,6 +14,7 @@ | |||
14 | #include <linux/pci.h> | 14 | #include <linux/pci.h> |
15 | #include <linux/mbus.h> | 15 | #include <linux/mbus.h> |
16 | #include <asm/mach/pci.h> | 16 | #include <asm/mach/pci.h> |
17 | #include <asm/plat-orion/pcie.h> | ||
17 | #include "common.h" | 18 | #include "common.h" |
18 | 19 | ||
19 | /***************************************************************************** | 20 | /***************************************************************************** |
@@ -32,288 +33,136 @@ | |||
32 | /***************************************************************************** | 33 | /***************************************************************************** |
33 | * PCIE controller | 34 | * PCIE controller |
34 | ****************************************************************************/ | 35 | ****************************************************************************/ |
35 | #define PCIE_CTRL ORION_PCIE_REG(0x1a00) | 36 | #define PCIE_BASE ((void __iomem *)ORION_PCIE_VIRT_BASE) |
36 | #define PCIE_STAT ORION_PCIE_REG(0x1a04) | ||
37 | #define PCIE_DEV_ID ORION_PCIE_REG(0x0000) | ||
38 | #define PCIE_CMD_STAT ORION_PCIE_REG(0x0004) | ||
39 | #define PCIE_DEV_REV ORION_PCIE_REG(0x0008) | ||
40 | #define PCIE_MASK ORION_PCIE_REG(0x1910) | ||
41 | #define PCIE_CONF_ADDR ORION_PCIE_REG(0x18f8) | ||
42 | #define PCIE_CONF_DATA ORION_PCIE_REG(0x18fc) | ||
43 | |||
44 | /* | ||
45 | * PCIE_STAT bits | ||
46 | */ | ||
47 | #define PCIE_STAT_LINK_DOWN 1 | ||
48 | #define PCIE_STAT_BUS_OFFS 8 | ||
49 | #define PCIE_STAT_BUS_MASK (0xff << PCIE_STAT_BUS_OFFS) | ||
50 | #define PCIE_STAT_DEV_OFFS 20 | ||
51 | #define PCIE_STAT_DEV_MASK (0x1f << PCIE_STAT_DEV_OFFS) | ||
52 | |||
53 | /* | ||
54 | * PCIE_CONF_ADDR bits | ||
55 | */ | ||
56 | #define PCIE_CONF_REG(r) ((((r) & 0xf00) << 24) | ((r) & 0xfc)) | ||
57 | #define PCIE_CONF_FUNC(f) (((f) & 0x3) << 8) | ||
58 | #define PCIE_CONF_DEV(d) (((d) & 0x1f) << 11) | ||
59 | #define PCIE_CONF_BUS(b) (((b) & 0xff) << 16) | ||
60 | #define PCIE_CONF_ADDR_EN (1 << 31) | ||
61 | |||
62 | /* | ||
63 | * PCIE Address Decode Windows registers | ||
64 | */ | ||
65 | #define PCIE_BAR_CTRL(n) ORION_PCIE_REG(0x1804 + ((n - 1) * 4)) | ||
66 | #define PCIE_BAR_LO(n) ORION_PCIE_REG(0x0010 + ((n) * 8)) | ||
67 | #define PCIE_BAR_HI(n) ORION_PCIE_REG(0x0014 + ((n) * 8)) | ||
68 | #define PCIE_WIN_CTRL(n) (((n) < 5) ? \ | ||
69 | ORION_PCIE_REG(0x1820 + ((n) << 4)) : \ | ||
70 | ORION_PCIE_REG(0x1880)) | ||
71 | #define PCIE_WIN_BASE(n) (((n) < 5) ? \ | ||
72 | ORION_PCIE_REG(0x1824 + ((n) << 4)) : \ | ||
73 | ORION_PCIE_REG(0x1884)) | ||
74 | #define PCIE_WIN_REMAP(n) (((n) < 5) ? \ | ||
75 | ORION_PCIE_REG(0x182c + ((n) << 4)) : \ | ||
76 | ORION_PCIE_REG(0x188c)) | ||
77 | #define PCIE_MAX_BARS 3 | ||
78 | #define PCIE_MAX_WINS 6 | ||
79 | |||
80 | /* | ||
81 | * Use PCIE BAR '1' for all DDR banks | ||
82 | */ | ||
83 | #define PCIE_DRAM_BAR 1 | ||
84 | |||
85 | /* | ||
86 | * PCIE config cycles are done by programming the PCIE_CONF_ADDR register | ||
87 | * and then reading the PCIE_CONF_DATA register. Need to make sure these | ||
88 | * transactions are atomic. | ||
89 | */ | ||
90 | static DEFINE_SPINLOCK(orion_pcie_lock); | ||
91 | 37 | ||
92 | void orion_pcie_id(u32 *dev, u32 *rev) | 38 | void orion_pcie_id(u32 *dev, u32 *rev) |
93 | { | 39 | { |
94 | *dev = orion_read(PCIE_DEV_ID) >> 16; | 40 | *dev = orion_pcie_dev_id(PCIE_BASE); |
95 | *rev = orion_read(PCIE_DEV_REV) & 0xff; | 41 | *rev = orion_pcie_rev(PCIE_BASE); |
96 | } | ||
97 | |||
98 | u32 orion_pcie_local_bus_nr(void) | ||
99 | { | ||
100 | u32 stat = orion_read(PCIE_STAT); | ||
101 | return((stat & PCIE_STAT_BUS_MASK) >> PCIE_STAT_BUS_OFFS); | ||
102 | } | ||
103 | |||
104 | static u32 orion_pcie_local_dev_nr(void) | ||
105 | { | ||
106 | u32 stat = orion_read(PCIE_STAT); | ||
107 | return((stat & PCIE_STAT_DEV_MASK) >> PCIE_STAT_DEV_OFFS); | ||
108 | } | ||
109 | |||
110 | static u32 orion_pcie_no_link(void) | ||
111 | { | ||
112 | u32 stat = orion_read(PCIE_STAT); | ||
113 | return(stat & PCIE_STAT_LINK_DOWN); | ||
114 | } | ||
115 | |||
116 | static void orion_pcie_set_bus_nr(int nr) | ||
117 | { | ||
118 | orion_clrbits(PCIE_STAT, PCIE_STAT_BUS_MASK); | ||
119 | orion_setbits(PCIE_STAT, nr << PCIE_STAT_BUS_OFFS); | ||
120 | } | 42 | } |
121 | 43 | ||
122 | /* | 44 | int orion_pcie_local_bus_nr(void) |
123 | * Setup PCIE BARs and Address Decode Wins: | ||
124 | * BAR[0,2] -> disabled, BAR[1] -> covers all DRAM banks | ||
125 | * WIN[0-3] -> DRAM bank[0-3] | ||
126 | */ | ||
127 | static void orion_setup_pcie_wins(struct mbus_dram_target_info *dram) | ||
128 | { | 45 | { |
129 | u32 size; | 46 | return orion_pcie_get_local_bus_nr(PCIE_BASE); |
130 | int i; | ||
131 | |||
132 | /* | ||
133 | * First, disable and clear BARs and windows | ||
134 | */ | ||
135 | for (i = 1; i < PCIE_MAX_BARS; i++) { | ||
136 | writel(0, PCIE_BAR_CTRL(i)); | ||
137 | writel(0, PCIE_BAR_LO(i)); | ||
138 | writel(0, PCIE_BAR_HI(i)); | ||
139 | } | ||
140 | |||
141 | for (i = 0; i < PCIE_MAX_WINS; i++) { | ||
142 | writel(0, PCIE_WIN_CTRL(i)); | ||
143 | writel(0, PCIE_WIN_BASE(i)); | ||
144 | writel(0, PCIE_WIN_REMAP(i)); | ||
145 | } | ||
146 | |||
147 | /* | ||
148 | * Setup windows for DDR banks. Count total DDR size on the fly. | ||
149 | */ | ||
150 | size = 0; | ||
151 | for (i = 0; i < dram->num_cs; i++) { | ||
152 | struct mbus_dram_window *cs = dram->cs + i; | ||
153 | |||
154 | writel(cs->base & 0xffff0000, PCIE_WIN_BASE(i)); | ||
155 | writel(0, PCIE_WIN_REMAP(i)); | ||
156 | writel(((cs->size - 1) & 0xffff0000) | | ||
157 | (cs->mbus_attr << 8) | | ||
158 | (dram->mbus_dram_target_id << 4) | | ||
159 | (PCIE_DRAM_BAR << 1) | 1, PCIE_WIN_CTRL(i)); | ||
160 | |||
161 | size += cs->size; | ||
162 | } | ||
163 | |||
164 | /* | ||
165 | * Setup BAR[1] to all DRAM banks | ||
166 | */ | ||
167 | writel(dram->cs[0].base, PCIE_BAR_LO(PCIE_DRAM_BAR)); | ||
168 | writel(0, PCIE_BAR_HI(PCIE_DRAM_BAR)); | ||
169 | writel(((size - 1) & 0xffff0000) | 1, PCIE_BAR_CTRL(PCIE_DRAM_BAR)); | ||
170 | } | 47 | } |
171 | 48 | ||
172 | static void orion_pcie_master_slave_enable(void) | 49 | static int pcie_valid_config(int bus, int dev) |
173 | { | ||
174 | orion_setbits(PCIE_CMD_STAT, PCI_COMMAND_MASTER | | ||
175 | PCI_COMMAND_IO | | ||
176 | PCI_COMMAND_MEMORY); | ||
177 | } | ||
178 | |||
179 | static void orion_pcie_enable_interrupts(void) | ||
180 | { | ||
181 | /* | ||
182 | * Enable interrupts lines | ||
183 | * INTA[24] INTB[25] INTC[26] INTD[27] | ||
184 | */ | ||
185 | orion_setbits(PCIE_MASK, 0xf<<24); | ||
186 | } | ||
187 | |||
188 | static int orion_pcie_valid_config(u32 bus, u32 dev) | ||
189 | { | 50 | { |
190 | /* | 51 | /* |
191 | * Don't go out when trying to access -- | 52 | * Don't go out when trying to access -- |
192 | * 1. our own device | 53 | * 1. our own device / nonexisting device on local bus |
193 | * 2. where there's no device connected (no link) | 54 | * 2. where there's no device connected (no link) |
194 | * 3. nonexisting devices on local bus | ||
195 | */ | 55 | */ |
196 | 56 | if (bus == 0 && dev != 1) | |
197 | if ((orion_pcie_local_bus_nr() == bus) && | ||
198 | (orion_pcie_local_dev_nr() == dev)) | ||
199 | return 0; | ||
200 | |||
201 | if (orion_pcie_no_link()) | ||
202 | return 0; | 57 | return 0; |
203 | 58 | ||
204 | if (bus == orion_pcie_local_bus_nr()) | 59 | if (!orion_pcie_link_up(PCIE_BASE)) |
205 | if (((orion_pcie_local_dev_nr() == 0) && (dev != 1)) || | ||
206 | ((orion_pcie_local_dev_nr() != 0) && (dev != 0))) | ||
207 | return 0; | 60 | return 0; |
208 | 61 | ||
209 | return 1; | 62 | return 1; |
210 | } | 63 | } |
211 | 64 | ||
212 | static int orion_pcie_rd_conf(struct pci_bus *bus, u32 devfn, int where, | 65 | |
213 | int size, u32 *val) | 66 | /* |
67 | * PCIE config cycles are done by programming the PCIE_CONF_ADDR register | ||
68 | * and then reading the PCIE_CONF_DATA register. Need to make sure these | ||
69 | * transactions are atomic. | ||
70 | */ | ||
71 | static DEFINE_SPINLOCK(orion_pcie_lock); | ||
72 | |||
73 | static int pcie_rd_conf(struct pci_bus *bus, u32 devfn, int where, | ||
74 | int size, u32 *val) | ||
214 | { | 75 | { |
215 | unsigned long flags; | 76 | unsigned long flags; |
216 | unsigned int dev, rev, pcie_addr; | 77 | int ret; |
217 | 78 | ||
218 | if (orion_pcie_valid_config(bus->number, PCI_SLOT(devfn)) == 0) { | 79 | if (pcie_valid_config(bus->number, PCI_SLOT(devfn)) == 0) { |
219 | *val = 0xffffffff; | 80 | *val = 0xffffffff; |
220 | return PCIBIOS_DEVICE_NOT_FOUND; | 81 | return PCIBIOS_DEVICE_NOT_FOUND; |
221 | } | 82 | } |
222 | 83 | ||
223 | spin_lock_irqsave(&orion_pcie_lock, flags); | 84 | spin_lock_irqsave(&orion_pcie_lock, flags); |
85 | ret = orion_pcie_rd_conf(PCIE_BASE, bus, devfn, where, size, val); | ||
86 | spin_unlock_irqrestore(&orion_pcie_lock, flags); | ||
224 | 87 | ||
225 | orion_write(PCIE_CONF_ADDR, PCIE_CONF_BUS(bus->number) | | 88 | return ret; |
226 | PCIE_CONF_DEV(PCI_SLOT(devfn)) | | 89 | } |
227 | PCIE_CONF_FUNC(PCI_FUNC(devfn)) | | ||
228 | PCIE_CONF_REG(where) | PCIE_CONF_ADDR_EN); | ||
229 | 90 | ||
230 | orion_pcie_id(&dev, &rev); | 91 | static int pcie_rd_conf_wa(struct pci_bus *bus, u32 devfn, |
231 | if (dev == MV88F5181_DEV_ID || dev == MV88F5182_DEV_ID) { | 92 | int where, int size, u32 *val) |
232 | /* extended register space */ | 93 | { |
233 | pcie_addr = ORION_PCIE_WA_VIRT_BASE; | 94 | int ret; |
234 | pcie_addr |= PCIE_CONF_BUS(bus->number) | | ||
235 | PCIE_CONF_DEV(PCI_SLOT(devfn)) | | ||
236 | PCIE_CONF_FUNC(PCI_FUNC(devfn)) | | ||
237 | PCIE_CONF_REG(where); | ||
238 | *val = orion_read(pcie_addr); | ||
239 | } else | ||
240 | *val = orion_read(PCIE_CONF_DATA); | ||
241 | 95 | ||
242 | if (size == 1) | 96 | if (pcie_valid_config(bus->number, PCI_SLOT(devfn)) == 0) { |
243 | *val = (*val >> (8*(where & 0x3))) & 0xff; | 97 | *val = 0xffffffff; |
244 | else if (size == 2) | 98 | return PCIBIOS_DEVICE_NOT_FOUND; |
245 | *val = (*val >> (8*(where & 0x3))) & 0xffff; | 99 | } |
246 | 100 | ||
247 | spin_unlock_irqrestore(&orion_pcie_lock, flags); | 101 | /* |
102 | * We only support access to the non-extended configuration | ||
103 | * space when using the WA access method (or we would have to | ||
104 | * sacrifice 256M of CPU virtual address space.) | ||
105 | */ | ||
106 | if (where >= 0x100) { | ||
107 | *val = 0xffffffff; | ||
108 | return PCIBIOS_DEVICE_NOT_FOUND; | ||
109 | } | ||
248 | 110 | ||
249 | return PCIBIOS_SUCCESSFUL; | 111 | ret = orion_pcie_rd_conf_wa((void __iomem *)ORION_PCIE_WA_VIRT_BASE, |
250 | } | 112 | bus, devfn, where, size, val); |
251 | 113 | ||
114 | return ret; | ||
115 | } | ||
252 | 116 | ||
253 | static int orion_pcie_wr_conf(struct pci_bus *bus, u32 devfn, int where, | 117 | static int pcie_wr_conf(struct pci_bus *bus, u32 devfn, |
254 | int size, u32 val) | 118 | int where, int size, u32 val) |
255 | { | 119 | { |
256 | unsigned long flags; | 120 | unsigned long flags; |
257 | int ret; | 121 | int ret; |
258 | 122 | ||
259 | if (orion_pcie_valid_config(bus->number, PCI_SLOT(devfn)) == 0) | 123 | if (pcie_valid_config(bus->number, PCI_SLOT(devfn)) == 0) |
260 | return PCIBIOS_DEVICE_NOT_FOUND; | 124 | return PCIBIOS_DEVICE_NOT_FOUND; |
261 | 125 | ||
262 | spin_lock_irqsave(&orion_pcie_lock, flags); | 126 | spin_lock_irqsave(&orion_pcie_lock, flags); |
263 | 127 | ret = orion_pcie_wr_conf(PCIE_BASE, bus, devfn, where, size, val); | |
264 | ret = PCIBIOS_SUCCESSFUL; | ||
265 | |||
266 | orion_write(PCIE_CONF_ADDR, PCIE_CONF_BUS(bus->number) | | ||
267 | PCIE_CONF_DEV(PCI_SLOT(devfn)) | | ||
268 | PCIE_CONF_FUNC(PCI_FUNC(devfn)) | | ||
269 | PCIE_CONF_REG(where) | PCIE_CONF_ADDR_EN); | ||
270 | |||
271 | if (size == 4) { | ||
272 | __raw_writel(val, PCIE_CONF_DATA); | ||
273 | } else if (size == 2) { | ||
274 | __raw_writew(val, PCIE_CONF_DATA + (where & 0x3)); | ||
275 | } else if (size == 1) { | ||
276 | __raw_writeb(val, PCIE_CONF_DATA + (where & 0x3)); | ||
277 | } else { | ||
278 | ret = PCIBIOS_BAD_REGISTER_NUMBER; | ||
279 | } | ||
280 | |||
281 | spin_unlock_irqrestore(&orion_pcie_lock, flags); | 128 | spin_unlock_irqrestore(&orion_pcie_lock, flags); |
282 | 129 | ||
283 | return ret; | 130 | return ret; |
284 | } | 131 | } |
285 | 132 | ||
286 | struct pci_ops orion_pcie_ops = { | 133 | struct pci_ops pcie_ops = { |
287 | .read = orion_pcie_rd_conf, | 134 | .read = pcie_rd_conf, |
288 | .write = orion_pcie_wr_conf, | 135 | .write = pcie_wr_conf, |
289 | }; | 136 | }; |
290 | 137 | ||
291 | 138 | ||
292 | static int orion_pcie_setup(struct pci_sys_data *sys) | 139 | static int pcie_setup(struct pci_sys_data *sys) |
293 | { | 140 | { |
294 | struct resource *res; | 141 | struct resource *res; |
142 | int dev; | ||
295 | 143 | ||
296 | /* | 144 | /* |
297 | * Point PCIe unit MBUS decode windows to DRAM space. | 145 | * Generic PCIe unit setup. |
298 | */ | ||
299 | orion_setup_pcie_wins(&orion_mbus_dram_info); | ||
300 | |||
301 | /* | ||
302 | * Master + Slave enable | ||
303 | */ | 146 | */ |
304 | orion_pcie_master_slave_enable(); | 147 | orion_pcie_setup(PCIE_BASE, &orion_mbus_dram_info); |
305 | 148 | ||
306 | /* | 149 | /* |
307 | * Enable interrupts lines A-D | 150 | * Check whether to apply Orion-1/Orion-NAS PCIe config |
151 | * read transaction workaround. | ||
308 | */ | 152 | */ |
309 | orion_pcie_enable_interrupts(); | 153 | dev = orion_pcie_dev_id(PCIE_BASE); |
154 | if (dev == MV88F5181_DEV_ID || dev == MV88F5182_DEV_ID) { | ||
155 | printk(KERN_NOTICE "Applying Orion-1/Orion-NAS PCIe config " | ||
156 | "read transaction workaround\n"); | ||
157 | pcie_ops.read = pcie_rd_conf_wa; | ||
158 | } | ||
310 | 159 | ||
311 | /* | 160 | /* |
312 | * Request resource | 161 | * Request resources. |
313 | */ | 162 | */ |
314 | res = kzalloc(sizeof(struct resource) * 2, GFP_KERNEL); | 163 | res = kzalloc(sizeof(struct resource) * 2, GFP_KERNEL); |
315 | if (!res) | 164 | if (!res) |
316 | panic("orion_pci_setup unable to alloc resources"); | 165 | panic("pcie_setup unable to alloc resources"); |
317 | 166 | ||
318 | /* | 167 | /* |
319 | * IORESOURCE_IO | 168 | * IORESOURCE_IO |
@@ -417,19 +266,19 @@ static int orion_pcie_setup(struct pci_sys_data *sys) | |||
417 | */ | 266 | */ |
418 | static DEFINE_SPINLOCK(orion_pci_lock); | 267 | static DEFINE_SPINLOCK(orion_pci_lock); |
419 | 268 | ||
420 | u32 orion_pci_local_bus_nr(void) | 269 | int orion_pci_local_bus_nr(void) |
421 | { | 270 | { |
422 | u32 conf = orion_read(PCI_P2P_CONF); | 271 | u32 conf = orion_read(PCI_P2P_CONF); |
423 | return((conf & PCI_P2P_BUS_MASK) >> PCI_P2P_BUS_OFFS); | 272 | return((conf & PCI_P2P_BUS_MASK) >> PCI_P2P_BUS_OFFS); |
424 | } | 273 | } |
425 | 274 | ||
426 | static u32 orion_pci_local_dev_nr(void) | 275 | static int orion_pci_local_dev_nr(void) |
427 | { | 276 | { |
428 | u32 conf = orion_read(PCI_P2P_CONF); | 277 | u32 conf = orion_read(PCI_P2P_CONF); |
429 | return((conf & PCI_P2P_DEV_MASK) >> PCI_P2P_DEV_OFFS); | 278 | return((conf & PCI_P2P_DEV_MASK) >> PCI_P2P_DEV_OFFS); |
430 | } | 279 | } |
431 | 280 | ||
432 | static int orion_pci_hw_rd_conf(u32 bus, u32 dev, u32 func, | 281 | static int orion_pci_hw_rd_conf(int bus, int dev, u32 func, |
433 | u32 where, u32 size, u32 *val) | 282 | u32 where, u32 size, u32 *val) |
434 | { | 283 | { |
435 | unsigned long flags; | 284 | unsigned long flags; |
@@ -451,7 +300,7 @@ static int orion_pci_hw_rd_conf(u32 bus, u32 dev, u32 func, | |||
451 | return PCIBIOS_SUCCESSFUL; | 300 | return PCIBIOS_SUCCESSFUL; |
452 | } | 301 | } |
453 | 302 | ||
454 | static int orion_pci_hw_wr_conf(u32 bus, u32 dev, u32 func, | 303 | static int orion_pci_hw_wr_conf(int bus, int dev, u32 func, |
455 | u32 where, u32 size, u32 val) | 304 | u32 where, u32 size, u32 val) |
456 | { | 305 | { |
457 | unsigned long flags; | 306 | unsigned long flags; |
@@ -508,7 +357,7 @@ static int orion_pci_wr_conf(struct pci_bus *bus, u32 devfn, | |||
508 | PCI_FUNC(devfn), where, size, val); | 357 | PCI_FUNC(devfn), where, size, val); |
509 | } | 358 | } |
510 | 359 | ||
511 | struct pci_ops orion_pci_ops = { | 360 | struct pci_ops pci_ops = { |
512 | .read = orion_pci_rd_conf, | 361 | .read = orion_pci_rd_conf, |
513 | .write = orion_pci_wr_conf, | 362 | .write = orion_pci_wr_conf, |
514 | }; | 363 | }; |
@@ -540,7 +389,8 @@ static void orion_pci_set_bus_nr(int nr) | |||
540 | 389 | ||
541 | static void orion_pci_master_slave_enable(void) | 390 | static void orion_pci_master_slave_enable(void) |
542 | { | 391 | { |
543 | u32 bus_nr, dev_nr, func, reg, val; | 392 | int bus_nr, dev_nr, func, reg; |
393 | u32 val; | ||
544 | 394 | ||
545 | bus_nr = orion_pci_local_bus_nr(); | 395 | bus_nr = orion_pci_local_bus_nr(); |
546 | dev_nr = orion_pci_local_dev_nr(); | 396 | dev_nr = orion_pci_local_dev_nr(); |
@@ -554,8 +404,8 @@ static void orion_pci_master_slave_enable(void) | |||
554 | static void orion_setup_pci_wins(struct mbus_dram_target_info *dram) | 404 | static void orion_setup_pci_wins(struct mbus_dram_target_info *dram) |
555 | { | 405 | { |
556 | u32 win_enable; | 406 | u32 win_enable; |
557 | u32 bus; | 407 | int bus; |
558 | u32 dev; | 408 | int dev; |
559 | int i; | 409 | int i; |
560 | 410 | ||
561 | /* | 411 | /* |
@@ -611,7 +461,7 @@ static void orion_setup_pci_wins(struct mbus_dram_target_info *dram) | |||
611 | orion_setbits(PCI_ADDR_DECODE_CTRL, 1); | 461 | orion_setbits(PCI_ADDR_DECODE_CTRL, 1); |
612 | } | 462 | } |
613 | 463 | ||
614 | static int orion_pci_setup(struct pci_sys_data *sys) | 464 | static int pci_setup(struct pci_sys_data *sys) |
615 | { | 465 | { |
616 | struct resource *res; | 466 | struct resource *res; |
617 | 467 | ||
@@ -635,7 +485,7 @@ static int orion_pci_setup(struct pci_sys_data *sys) | |||
635 | */ | 485 | */ |
636 | res = kzalloc(sizeof(struct resource) * 2, GFP_KERNEL); | 486 | res = kzalloc(sizeof(struct resource) * 2, GFP_KERNEL); |
637 | if (!res) | 487 | if (!res) |
638 | panic("orion_pci_setup unable to alloc resources"); | 488 | panic("pci_setup unable to alloc resources"); |
639 | 489 | ||
640 | /* | 490 | /* |
641 | * IORESOURCE_IO | 491 | * IORESOURCE_IO |
@@ -674,16 +524,11 @@ int orion_pci_sys_setup(int nr, struct pci_sys_data *sys) | |||
674 | int ret = 0; | 524 | int ret = 0; |
675 | 525 | ||
676 | if (nr == 0) { | 526 | if (nr == 0) { |
677 | /* | 527 | orion_pcie_set_local_bus_nr(PCIE_BASE, sys->busnr); |
678 | * PCIE setup | 528 | ret = pcie_setup(sys); |
679 | */ | ||
680 | orion_pcie_set_bus_nr(0); | ||
681 | ret = orion_pcie_setup(sys); | ||
682 | } else if (nr == 1) { | 529 | } else if (nr == 1) { |
683 | /* | 530 | orion_pci_set_bus_nr(sys->busnr); |
684 | * PCI setup | 531 | ret = pci_setup(sys); |
685 | */ | ||
686 | ret = orion_pci_setup(sys); | ||
687 | } | 532 | } |
688 | 533 | ||
689 | return ret; | 534 | return ret; |
@@ -691,31 +536,15 @@ int orion_pci_sys_setup(int nr, struct pci_sys_data *sys) | |||
691 | 536 | ||
692 | struct pci_bus *orion_pci_sys_scan_bus(int nr, struct pci_sys_data *sys) | 537 | struct pci_bus *orion_pci_sys_scan_bus(int nr, struct pci_sys_data *sys) |
693 | { | 538 | { |
694 | struct pci_ops *ops; | ||
695 | struct pci_bus *bus; | 539 | struct pci_bus *bus; |
696 | 540 | ||
697 | |||
698 | if (nr == 0) { | 541 | if (nr == 0) { |
699 | u32 pci_bus; | 542 | bus = pci_scan_bus(sys->busnr, &pcie_ops, sys); |
700 | /* | ||
701 | * PCIE scan | ||
702 | */ | ||
703 | ops = &orion_pcie_ops; | ||
704 | bus = pci_scan_bus(sys->busnr, ops, sys); | ||
705 | /* | ||
706 | * Set local PCI bus number to follow PCIE bridges (if any) | ||
707 | */ | ||
708 | pci_bus = bus->number + bus->subordinate - bus->secondary + 1; | ||
709 | orion_pci_set_bus_nr(pci_bus); | ||
710 | } else if (nr == 1) { | 543 | } else if (nr == 1) { |
711 | /* | 544 | bus = pci_scan_bus(sys->busnr, &pci_ops, sys); |
712 | * PCI scan | ||
713 | */ | ||
714 | ops = &orion_pci_ops; | ||
715 | bus = pci_scan_bus(sys->busnr, ops, sys); | ||
716 | } else { | 545 | } else { |
717 | BUG(); | ||
718 | bus = NULL; | 546 | bus = NULL; |
547 | BUG(); | ||
719 | } | 548 | } |
720 | 549 | ||
721 | return bus; | 550 | return bus; |