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ba3eb9fc VB |
1 | /* |
2 | * pci-rcar-gen2: internal PCI bus support | |
3 | * | |
4 | * Copyright (C) 2013 Renesas Solutions Corp. | |
5 | * Copyright (C) 2013 Cogent Embedded, Inc. | |
6 | * | |
0b9c1589 PG |
7 | * Author: Valentine Barshak <valentine.barshak@cogentembedded.com> |
8 | * | |
ba3eb9fc VB |
9 | * This program is free software; you can redistribute it and/or modify |
10 | * it under the terms of the GNU General Public License version 2 as | |
11 | * published by the Free Software Foundation. | |
12 | */ | |
13 | ||
14 | #include <linux/delay.h> | |
15 | #include <linux/init.h> | |
16 | #include <linux/interrupt.h> | |
17 | #include <linux/io.h> | |
18 | #include <linux/kernel.h> | |
8d598cab | 19 | #include <linux/of_address.h> |
b9bfe1bc | 20 | #include <linux/of_pci.h> |
ba3eb9fc VB |
21 | #include <linux/pci.h> |
22 | #include <linux/platform_device.h> | |
fb178d8b | 23 | #include <linux/pm_runtime.h> |
33966fd9 | 24 | #include <linux/sizes.h> |
ba3eb9fc VB |
25 | #include <linux/slab.h> |
26 | ||
27 | /* AHB-PCI Bridge PCI communication registers */ | |
28 | #define RCAR_AHBPCI_PCICOM_OFFSET 0x800 | |
29 | ||
30 | #define RCAR_PCIAHB_WIN1_CTR_REG (RCAR_AHBPCI_PCICOM_OFFSET + 0x00) | |
31 | #define RCAR_PCIAHB_WIN2_CTR_REG (RCAR_AHBPCI_PCICOM_OFFSET + 0x04) | |
32 | #define RCAR_PCIAHB_PREFETCH0 0x0 | |
33 | #define RCAR_PCIAHB_PREFETCH4 0x1 | |
34 | #define RCAR_PCIAHB_PREFETCH8 0x2 | |
35 | #define RCAR_PCIAHB_PREFETCH16 0x3 | |
36 | ||
37 | #define RCAR_AHBPCI_WIN1_CTR_REG (RCAR_AHBPCI_PCICOM_OFFSET + 0x10) | |
38 | #define RCAR_AHBPCI_WIN2_CTR_REG (RCAR_AHBPCI_PCICOM_OFFSET + 0x14) | |
39 | #define RCAR_AHBPCI_WIN_CTR_MEM (3 << 1) | |
40 | #define RCAR_AHBPCI_WIN_CTR_CFG (5 << 1) | |
41 | #define RCAR_AHBPCI_WIN1_HOST (1 << 30) | |
42 | #define RCAR_AHBPCI_WIN1_DEVICE (1 << 31) | |
43 | ||
44 | #define RCAR_PCI_INT_ENABLE_REG (RCAR_AHBPCI_PCICOM_OFFSET + 0x20) | |
45 | #define RCAR_PCI_INT_STATUS_REG (RCAR_AHBPCI_PCICOM_OFFSET + 0x24) | |
80a595d9 BD |
46 | #define RCAR_PCI_INT_SIGTABORT (1 << 0) |
47 | #define RCAR_PCI_INT_SIGRETABORT (1 << 1) | |
48 | #define RCAR_PCI_INT_REMABORT (1 << 2) | |
49 | #define RCAR_PCI_INT_PERR (1 << 3) | |
50 | #define RCAR_PCI_INT_SIGSERR (1 << 4) | |
51 | #define RCAR_PCI_INT_RESERR (1 << 5) | |
52 | #define RCAR_PCI_INT_WIN1ERR (1 << 12) | |
53 | #define RCAR_PCI_INT_WIN2ERR (1 << 13) | |
ba3eb9fc VB |
54 | #define RCAR_PCI_INT_A (1 << 16) |
55 | #define RCAR_PCI_INT_B (1 << 17) | |
56 | #define RCAR_PCI_INT_PME (1 << 19) | |
80a595d9 BD |
57 | #define RCAR_PCI_INT_ALLERRORS (RCAR_PCI_INT_SIGTABORT | \ |
58 | RCAR_PCI_INT_SIGRETABORT | \ | |
59 | RCAR_PCI_INT_SIGRETABORT | \ | |
60 | RCAR_PCI_INT_REMABORT | \ | |
61 | RCAR_PCI_INT_PERR | \ | |
62 | RCAR_PCI_INT_SIGSERR | \ | |
63 | RCAR_PCI_INT_RESERR | \ | |
64 | RCAR_PCI_INT_WIN1ERR | \ | |
65 | RCAR_PCI_INT_WIN2ERR) | |
ba3eb9fc VB |
66 | |
67 | #define RCAR_AHB_BUS_CTR_REG (RCAR_AHBPCI_PCICOM_OFFSET + 0x30) | |
68 | #define RCAR_AHB_BUS_MMODE_HTRANS (1 << 0) | |
69 | #define RCAR_AHB_BUS_MMODE_BYTE_BURST (1 << 1) | |
70 | #define RCAR_AHB_BUS_MMODE_WR_INCR (1 << 2) | |
71 | #define RCAR_AHB_BUS_MMODE_HBUS_REQ (1 << 7) | |
72 | #define RCAR_AHB_BUS_SMODE_READYCTR (1 << 17) | |
73 | #define RCAR_AHB_BUS_MODE (RCAR_AHB_BUS_MMODE_HTRANS | \ | |
74 | RCAR_AHB_BUS_MMODE_BYTE_BURST | \ | |
75 | RCAR_AHB_BUS_MMODE_WR_INCR | \ | |
76 | RCAR_AHB_BUS_MMODE_HBUS_REQ | \ | |
77 | RCAR_AHB_BUS_SMODE_READYCTR) | |
78 | ||
79 | #define RCAR_USBCTR_REG (RCAR_AHBPCI_PCICOM_OFFSET + 0x34) | |
80 | #define RCAR_USBCTR_USBH_RST (1 << 0) | |
81 | #define RCAR_USBCTR_PCICLK_MASK (1 << 1) | |
82 | #define RCAR_USBCTR_PLL_RST (1 << 2) | |
83 | #define RCAR_USBCTR_DIRPD (1 << 8) | |
84 | #define RCAR_USBCTR_PCIAHB_WIN2_EN (1 << 9) | |
85 | #define RCAR_USBCTR_PCIAHB_WIN1_256M (0 << 10) | |
86 | #define RCAR_USBCTR_PCIAHB_WIN1_512M (1 << 10) | |
87 | #define RCAR_USBCTR_PCIAHB_WIN1_1G (2 << 10) | |
88 | #define RCAR_USBCTR_PCIAHB_WIN1_2G (3 << 10) | |
89 | #define RCAR_USBCTR_PCIAHB_WIN1_MASK (3 << 10) | |
90 | ||
91 | #define RCAR_PCI_ARBITER_CTR_REG (RCAR_AHBPCI_PCICOM_OFFSET + 0x40) | |
92 | #define RCAR_PCI_ARBITER_PCIREQ0 (1 << 0) | |
93 | #define RCAR_PCI_ARBITER_PCIREQ1 (1 << 1) | |
94 | #define RCAR_PCI_ARBITER_PCIBP_MODE (1 << 12) | |
95 | ||
96 | #define RCAR_PCI_UNIT_REV_REG (RCAR_AHBPCI_PCICOM_OFFSET + 0x48) | |
97 | ||
ba3eb9fc | 98 | struct rcar_pci_priv { |
fb178d8b | 99 | struct device *dev; |
ba3eb9fc | 100 | void __iomem *reg; |
ba3eb9fc VB |
101 | struct resource mem_res; |
102 | struct resource *cfg_res; | |
d47b62f4 | 103 | unsigned busnr; |
ba3eb9fc | 104 | int irq; |
33966fd9 | 105 | unsigned long window_size; |
8d598cab PE |
106 | unsigned long window_addr; |
107 | unsigned long window_pci; | |
ba3eb9fc VB |
108 | }; |
109 | ||
110 | /* PCI configuration space operations */ | |
111 | static void __iomem *rcar_pci_cfg_base(struct pci_bus *bus, unsigned int devfn, | |
112 | int where) | |
113 | { | |
114 | struct pci_sys_data *sys = bus->sysdata; | |
115 | struct rcar_pci_priv *priv = sys->private_data; | |
116 | int slot, val; | |
117 | ||
118 | if (sys->busnr != bus->number || PCI_FUNC(devfn)) | |
119 | return NULL; | |
120 | ||
121 | /* Only one EHCI/OHCI device built-in */ | |
122 | slot = PCI_SLOT(devfn); | |
123 | if (slot > 2) | |
124 | return NULL; | |
125 | ||
e64a2a97 BD |
126 | /* bridge logic only has registers to 0x40 */ |
127 | if (slot == 0x0 && where >= 0x40) | |
128 | return NULL; | |
129 | ||
ba3eb9fc VB |
130 | val = slot ? RCAR_AHBPCI_WIN1_DEVICE | RCAR_AHBPCI_WIN_CTR_CFG : |
131 | RCAR_AHBPCI_WIN1_HOST | RCAR_AHBPCI_WIN_CTR_CFG; | |
132 | ||
133 | iowrite32(val, priv->reg + RCAR_AHBPCI_WIN1_CTR_REG); | |
134 | return priv->reg + (slot >> 1) * 0x100 + where; | |
135 | } | |
136 | ||
ba3eb9fc | 137 | /* PCI interrupt mapping */ |
546cadda | 138 | static int rcar_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) |
ba3eb9fc VB |
139 | { |
140 | struct pci_sys_data *sys = dev->bus->sysdata; | |
141 | struct rcar_pci_priv *priv = sys->private_data; | |
b9bfe1bc LS |
142 | int irq; |
143 | ||
144 | irq = of_irq_parse_and_map_pci(dev, slot, pin); | |
145 | if (!irq) | |
146 | irq = priv->irq; | |
ba3eb9fc | 147 | |
b9bfe1bc | 148 | return irq; |
ba3eb9fc VB |
149 | } |
150 | ||
80a595d9 BD |
151 | #ifdef CONFIG_PCI_DEBUG |
152 | /* if debug enabled, then attach an error handler irq to the bridge */ | |
153 | ||
154 | static irqreturn_t rcar_pci_err_irq(int irq, void *pw) | |
155 | { | |
156 | struct rcar_pci_priv *priv = pw; | |
de9e6bc8 | 157 | struct device *dev = priv->dev; |
80a595d9 BD |
158 | u32 status = ioread32(priv->reg + RCAR_PCI_INT_STATUS_REG); |
159 | ||
160 | if (status & RCAR_PCI_INT_ALLERRORS) { | |
de9e6bc8 | 161 | dev_err(dev, "error irq: status %08x\n", status); |
80a595d9 BD |
162 | |
163 | /* clear the error(s) */ | |
164 | iowrite32(status & RCAR_PCI_INT_ALLERRORS, | |
165 | priv->reg + RCAR_PCI_INT_STATUS_REG); | |
166 | return IRQ_HANDLED; | |
167 | } | |
168 | ||
169 | return IRQ_NONE; | |
170 | } | |
171 | ||
172 | static void rcar_pci_setup_errirq(struct rcar_pci_priv *priv) | |
173 | { | |
de9e6bc8 | 174 | struct device *dev = priv->dev; |
80a595d9 BD |
175 | int ret; |
176 | u32 val; | |
177 | ||
de9e6bc8 | 178 | ret = devm_request_irq(dev, priv->irq, rcar_pci_err_irq, |
80a595d9 BD |
179 | IRQF_SHARED, "error irq", priv); |
180 | if (ret) { | |
de9e6bc8 | 181 | dev_err(dev, "cannot claim IRQ for error handling\n"); |
80a595d9 BD |
182 | return; |
183 | } | |
184 | ||
185 | val = ioread32(priv->reg + RCAR_PCI_INT_ENABLE_REG); | |
186 | val |= RCAR_PCI_INT_ALLERRORS; | |
187 | iowrite32(val, priv->reg + RCAR_PCI_INT_ENABLE_REG); | |
188 | } | |
189 | #else | |
190 | static inline void rcar_pci_setup_errirq(struct rcar_pci_priv *priv) { } | |
191 | #endif | |
192 | ||
ba3eb9fc | 193 | /* PCI host controller setup */ |
546cadda | 194 | static int rcar_pci_setup(int nr, struct pci_sys_data *sys) |
ba3eb9fc VB |
195 | { |
196 | struct rcar_pci_priv *priv = sys->private_data; | |
de9e6bc8 | 197 | struct device *dev = priv->dev; |
ba3eb9fc VB |
198 | void __iomem *reg = priv->reg; |
199 | u32 val; | |
ac575ead | 200 | int ret; |
ba3eb9fc | 201 | |
de9e6bc8 BH |
202 | pm_runtime_enable(dev); |
203 | pm_runtime_get_sync(dev); | |
fb178d8b | 204 | |
ba3eb9fc | 205 | val = ioread32(reg + RCAR_PCI_UNIT_REV_REG); |
de9e6bc8 | 206 | dev_info(dev, "PCI: bus%u revision %x\n", sys->busnr, val); |
ba3eb9fc VB |
207 | |
208 | /* Disable Direct Power Down State and assert reset */ | |
209 | val = ioread32(reg + RCAR_USBCTR_REG) & ~RCAR_USBCTR_DIRPD; | |
210 | val |= RCAR_USBCTR_USBH_RST | RCAR_USBCTR_PLL_RST; | |
211 | iowrite32(val, reg + RCAR_USBCTR_REG); | |
212 | udelay(4); | |
213 | ||
33966fd9 | 214 | /* De-assert reset and reset PCIAHB window1 size */ |
ba3eb9fc VB |
215 | val &= ~(RCAR_USBCTR_PCIAHB_WIN1_MASK | RCAR_USBCTR_PCICLK_MASK | |
216 | RCAR_USBCTR_USBH_RST | RCAR_USBCTR_PLL_RST); | |
33966fd9 MD |
217 | |
218 | /* Setup PCIAHB window1 size */ | |
219 | switch (priv->window_size) { | |
220 | case SZ_2G: | |
221 | val |= RCAR_USBCTR_PCIAHB_WIN1_2G; | |
222 | break; | |
223 | case SZ_1G: | |
224 | val |= RCAR_USBCTR_PCIAHB_WIN1_1G; | |
225 | break; | |
226 | case SZ_512M: | |
227 | val |= RCAR_USBCTR_PCIAHB_WIN1_512M; | |
228 | break; | |
229 | default: | |
230 | pr_warn("unknown window size %ld - defaulting to 256M\n", | |
231 | priv->window_size); | |
232 | priv->window_size = SZ_256M; | |
233 | /* fall-through */ | |
234 | case SZ_256M: | |
235 | val |= RCAR_USBCTR_PCIAHB_WIN1_256M; | |
236 | break; | |
237 | } | |
238 | iowrite32(val, reg + RCAR_USBCTR_REG); | |
ba3eb9fc VB |
239 | |
240 | /* Configure AHB master and slave modes */ | |
241 | iowrite32(RCAR_AHB_BUS_MODE, reg + RCAR_AHB_BUS_CTR_REG); | |
242 | ||
243 | /* Configure PCI arbiter */ | |
244 | val = ioread32(reg + RCAR_PCI_ARBITER_CTR_REG); | |
245 | val |= RCAR_PCI_ARBITER_PCIREQ0 | RCAR_PCI_ARBITER_PCIREQ1 | | |
246 | RCAR_PCI_ARBITER_PCIBP_MODE; | |
247 | iowrite32(val, reg + RCAR_PCI_ARBITER_CTR_REG); | |
248 | ||
8d598cab PE |
249 | /* PCI-AHB mapping */ |
250 | iowrite32(priv->window_addr | RCAR_PCIAHB_PREFETCH16, | |
ba3eb9fc VB |
251 | reg + RCAR_PCIAHB_WIN1_CTR_REG); |
252 | ||
253 | /* AHB-PCI mapping: OHCI/EHCI registers */ | |
254 | val = priv->mem_res.start | RCAR_AHBPCI_WIN_CTR_MEM; | |
255 | iowrite32(val, reg + RCAR_AHBPCI_WIN2_CTR_REG); | |
256 | ||
257 | /* Enable AHB-PCI bridge PCI configuration access */ | |
258 | iowrite32(RCAR_AHBPCI_WIN1_HOST | RCAR_AHBPCI_WIN_CTR_CFG, | |
259 | reg + RCAR_AHBPCI_WIN1_CTR_REG); | |
260 | /* Set PCI-AHB Window1 address */ | |
8d598cab | 261 | iowrite32(priv->window_pci | PCI_BASE_ADDRESS_MEM_PREFETCH, |
ba3eb9fc VB |
262 | reg + PCI_BASE_ADDRESS_1); |
263 | /* Set AHB-PCI bridge PCI communication area address */ | |
264 | val = priv->cfg_res->start + RCAR_AHBPCI_PCICOM_OFFSET; | |
265 | iowrite32(val, reg + PCI_BASE_ADDRESS_0); | |
266 | ||
267 | val = ioread32(reg + PCI_COMMAND); | |
268 | val |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY | | |
269 | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER; | |
270 | iowrite32(val, reg + PCI_COMMAND); | |
271 | ||
272 | /* Enable PCI interrupts */ | |
273 | iowrite32(RCAR_PCI_INT_A | RCAR_PCI_INT_B | RCAR_PCI_INT_PME, | |
274 | reg + RCAR_PCI_INT_ENABLE_REG); | |
275 | ||
80a595d9 BD |
276 | if (priv->irq > 0) |
277 | rcar_pci_setup_errirq(priv); | |
278 | ||
ba3eb9fc | 279 | /* Add PCI resources */ |
ba3eb9fc | 280 | pci_add_resource(&sys->resources, &priv->mem_res); |
de9e6bc8 | 281 | ret = devm_request_pci_bus_resources(dev, &sys->resources); |
ac575ead BH |
282 | if (ret < 0) |
283 | return ret; | |
ba3eb9fc | 284 | |
d47b62f4 BD |
285 | /* Setup bus number based on platform device id / of bus-range */ |
286 | sys->busnr = priv->busnr; | |
ba3eb9fc VB |
287 | return 1; |
288 | } | |
289 | ||
290 | static struct pci_ops rcar_pci_ops = { | |
b44923b7 RH |
291 | .map_bus = rcar_pci_cfg_base, |
292 | .read = pci_generic_config_read, | |
293 | .write = pci_generic_config_write, | |
ba3eb9fc VB |
294 | }; |
295 | ||
8d598cab PE |
296 | static int rcar_pci_parse_map_dma_ranges(struct rcar_pci_priv *pci, |
297 | struct device_node *np) | |
298 | { | |
de9e6bc8 | 299 | struct device *dev = pci->dev; |
8d598cab PE |
300 | struct of_pci_range range; |
301 | struct of_pci_range_parser parser; | |
302 | int index = 0; | |
303 | ||
304 | /* Failure to parse is ok as we fall back to defaults */ | |
1e61a57c | 305 | if (of_pci_dma_range_parser_init(&parser, np)) |
8d598cab PE |
306 | return 0; |
307 | ||
308 | /* Get the dma-ranges from DT */ | |
309 | for_each_of_pci_range(&parser, &range) { | |
310 | /* Hardware only allows one inbound 32-bit range */ | |
311 | if (index) | |
312 | return -EINVAL; | |
313 | ||
314 | pci->window_addr = (unsigned long)range.cpu_addr; | |
315 | pci->window_pci = (unsigned long)range.pci_addr; | |
316 | pci->window_size = (unsigned long)range.size; | |
317 | ||
318 | /* Catch HW limitations */ | |
319 | if (!(range.flags & IORESOURCE_PREFETCH)) { | |
de9e6bc8 | 320 | dev_err(dev, "window must be prefetchable\n"); |
8d598cab PE |
321 | return -EINVAL; |
322 | } | |
323 | if (pci->window_addr) { | |
324 | u32 lowaddr = 1 << (ffs(pci->window_addr) - 1); | |
325 | ||
326 | if (lowaddr < pci->window_size) { | |
de9e6bc8 | 327 | dev_err(dev, "invalid window size/addr\n"); |
8d598cab PE |
328 | return -EINVAL; |
329 | } | |
330 | } | |
331 | index++; | |
332 | } | |
333 | ||
334 | return 0; | |
335 | } | |
336 | ||
546cadda | 337 | static int rcar_pci_probe(struct platform_device *pdev) |
ba3eb9fc | 338 | { |
de9e6bc8 | 339 | struct device *dev = &pdev->dev; |
ba3eb9fc VB |
340 | struct resource *cfg_res, *mem_res; |
341 | struct rcar_pci_priv *priv; | |
342 | void __iomem *reg; | |
546cadda MD |
343 | struct hw_pci hw; |
344 | void *hw_private[1]; | |
ba3eb9fc VB |
345 | |
346 | cfg_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
de9e6bc8 | 347 | reg = devm_ioremap_resource(dev, cfg_res); |
c176d1c7 WY |
348 | if (IS_ERR(reg)) |
349 | return PTR_ERR(reg); | |
ba3eb9fc VB |
350 | |
351 | mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 1); | |
352 | if (!mem_res || !mem_res->start) | |
353 | return -ENODEV; | |
354 | ||
7a27db23 NI |
355 | if (mem_res->start & 0xFFFF) |
356 | return -EINVAL; | |
357 | ||
de9e6bc8 | 358 | priv = devm_kzalloc(dev, sizeof(struct rcar_pci_priv), GFP_KERNEL); |
ba3eb9fc VB |
359 | if (!priv) |
360 | return -ENOMEM; | |
361 | ||
362 | priv->mem_res = *mem_res; | |
ba3eb9fc VB |
363 | priv->cfg_res = cfg_res; |
364 | ||
365 | priv->irq = platform_get_irq(pdev, 0); | |
366 | priv->reg = reg; | |
de9e6bc8 | 367 | priv->dev = dev; |
ba3eb9fc | 368 | |
ed65b788 | 369 | if (priv->irq < 0) { |
de9e6bc8 | 370 | dev_err(dev, "no valid irq found\n"); |
ed65b788 BD |
371 | return priv->irq; |
372 | } | |
373 | ||
8d598cab PE |
374 | /* default window addr and size if not specified in DT */ |
375 | priv->window_addr = 0x40000000; | |
376 | priv->window_pci = 0x40000000; | |
33966fd9 MD |
377 | priv->window_size = SZ_1G; |
378 | ||
de9e6bc8 | 379 | if (dev->of_node) { |
d47b62f4 BD |
380 | struct resource busnr; |
381 | int ret; | |
382 | ||
de9e6bc8 | 383 | ret = of_pci_parse_bus_range(dev->of_node, &busnr); |
d47b62f4 | 384 | if (ret < 0) { |
de9e6bc8 | 385 | dev_err(dev, "failed to parse bus-range\n"); |
d47b62f4 BD |
386 | return ret; |
387 | } | |
388 | ||
389 | priv->busnr = busnr.start; | |
390 | if (busnr.end != busnr.start) | |
de9e6bc8 | 391 | dev_warn(dev, "only one bus number supported\n"); |
8d598cab | 392 | |
de9e6bc8 | 393 | ret = rcar_pci_parse_map_dma_ranges(priv, dev->of_node); |
8d598cab | 394 | if (ret < 0) { |
de9e6bc8 | 395 | dev_err(dev, "failed to parse dma-range\n"); |
8d598cab PE |
396 | return ret; |
397 | } | |
d47b62f4 BD |
398 | } else { |
399 | priv->busnr = pdev->id; | |
400 | } | |
401 | ||
546cadda MD |
402 | hw_private[0] = priv; |
403 | memset(&hw, 0, sizeof(hw)); | |
404 | hw.nr_controllers = ARRAY_SIZE(hw_private); | |
b2a5d3e2 | 405 | hw.io_optional = 1; |
546cadda MD |
406 | hw.private_data = hw_private; |
407 | hw.map_irq = rcar_pci_map_irq; | |
408 | hw.ops = &rcar_pci_ops; | |
409 | hw.setup = rcar_pci_setup; | |
de9e6bc8 | 410 | pci_common_init_dev(dev, &hw); |
546cadda | 411 | return 0; |
ba3eb9fc VB |
412 | } |
413 | ||
bf44167f | 414 | static const struct of_device_id rcar_pci_of_match[] = { |
d47b62f4 BD |
415 | { .compatible = "renesas,pci-r8a7790", }, |
416 | { .compatible = "renesas,pci-r8a7791", }, | |
de24c18c | 417 | { .compatible = "renesas,pci-r8a7794", }, |
7b99d942 | 418 | { .compatible = "renesas,pci-rcar-gen2", }, |
d47b62f4 BD |
419 | { }, |
420 | }; | |
421 | ||
ba3eb9fc VB |
422 | static struct platform_driver rcar_pci_driver = { |
423 | .driver = { | |
424 | .name = "pci-rcar-gen2", | |
546cadda | 425 | .suppress_bind_attrs = true, |
d47b62f4 | 426 | .of_match_table = rcar_pci_of_match, |
ba3eb9fc | 427 | }, |
546cadda | 428 | .probe = rcar_pci_probe, |
ba3eb9fc | 429 | }; |
0b9c1589 | 430 | builtin_platform_driver(rcar_pci_driver); |