1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* |
3 | * PRU-ICSS platform driver for various TI SoCs |
4 | * |
5 | * Copyright (C) 2014-2020 Texas Instruments Incorporated - http://www.ti.com/ |
6 | * Author(s): |
7 | * Suman Anna <s-anna@ti.com> |
8 | * Andrew F. Davis <afd@ti.com> |
9 | * Tero Kristo <t-kristo@ti.com> |
10 | */ |
11 | |
12 | #include <linux/clk-provider.h> |
13 | #include <linux/dma-mapping.h> |
14 | #include <linux/io.h> |
15 | #include <linux/mfd/syscon.h> |
16 | #include <linux/module.h> |
17 | #include <linux/of.h> |
18 | #include <linux/of_address.h> |
19 | #include <linux/of_platform.h> |
20 | #include <linux/platform_device.h> |
21 | #include <linux/pm_runtime.h> |
22 | #include <linux/pruss_driver.h> |
23 | #include <linux/regmap.h> |
24 | #include <linux/remoteproc.h> |
25 | #include <linux/slab.h> |
26 | #include "pruss.h" |
27 | |
28 | /** |
29 | * struct pruss_private_data - PRUSS driver private data |
30 | * @has_no_sharedram: flag to indicate the absence of PRUSS Shared Data RAM |
31 | * @has_core_mux_clock: flag to indicate the presence of PRUSS core clock |
32 | */ |
33 | struct pruss_private_data { |
34 | bool has_no_sharedram; |
35 | bool has_core_mux_clock; |
36 | }; |
37 | |
38 | /** |
39 | * pruss_get() - get the pruss for a given PRU remoteproc |
40 | * @rproc: remoteproc handle of a PRU instance |
41 | * |
42 | * Finds the parent pruss device for a PRU given the @rproc handle of the |
43 | * PRU remote processor. This function increments the pruss device's refcount, |
44 | * so always use pruss_put() to decrement it back once pruss isn't needed |
45 | * anymore. |
46 | * |
47 | * This API doesn't check if @rproc is valid or not. It is expected the caller |
48 | * will have done a pru_rproc_get() on @rproc, before calling this API to make |
49 | * sure that @rproc is valid. |
50 | * |
51 | * Return: pruss handle on success, and an ERR_PTR on failure using one |
52 | * of the following error values |
53 | * -EINVAL if invalid parameter |
54 | * -ENODEV if PRU device or PRUSS device is not found |
55 | */ |
56 | struct pruss *pruss_get(struct rproc *rproc) |
57 | { |
58 | struct pruss *pruss; |
59 | struct device *dev; |
60 | struct platform_device *ppdev; |
61 | |
62 | if (IS_ERR_OR_NULL(ptr: rproc)) |
63 | return ERR_PTR(error: -EINVAL); |
64 | |
65 | dev = &rproc->dev; |
66 | |
67 | /* make sure it is PRU rproc */ |
68 | if (!dev->parent || !is_pru_rproc(dev: dev->parent)) |
69 | return ERR_PTR(error: -ENODEV); |
70 | |
71 | ppdev = to_platform_device(dev->parent->parent); |
72 | pruss = platform_get_drvdata(pdev: ppdev); |
73 | if (!pruss) |
74 | return ERR_PTR(error: -ENODEV); |
75 | |
76 | get_device(dev: pruss->dev); |
77 | |
78 | return pruss; |
79 | } |
80 | EXPORT_SYMBOL_GPL(pruss_get); |
81 | |
82 | /** |
83 | * pruss_put() - decrement pruss device's usecount |
84 | * @pruss: pruss handle |
85 | * |
86 | * Complimentary function for pruss_get(). Needs to be called |
87 | * after the PRUSS is used, and only if the pruss_get() succeeds. |
88 | */ |
89 | void pruss_put(struct pruss *pruss) |
90 | { |
91 | if (IS_ERR_OR_NULL(ptr: pruss)) |
92 | return; |
93 | |
94 | put_device(dev: pruss->dev); |
95 | } |
96 | EXPORT_SYMBOL_GPL(pruss_put); |
97 | |
98 | /** |
99 | * pruss_request_mem_region() - request a memory resource |
100 | * @pruss: the pruss instance |
101 | * @mem_id: the memory resource id |
102 | * @region: pointer to memory region structure to be filled in |
103 | * |
104 | * This function allows a client driver to request a memory resource, |
105 | * and if successful, will let the client driver own the particular |
106 | * memory region until released using the pruss_release_mem_region() |
107 | * API. |
108 | * |
109 | * Return: 0 if requested memory region is available (in such case pointer to |
110 | * memory region is returned via @region), an error otherwise |
111 | */ |
112 | int pruss_request_mem_region(struct pruss *pruss, enum pruss_mem mem_id, |
113 | struct pruss_mem_region *region) |
114 | { |
115 | if (!pruss || !region || mem_id >= PRUSS_MEM_MAX) |
116 | return -EINVAL; |
117 | |
118 | mutex_lock(&pruss->lock); |
119 | |
120 | if (pruss->mem_in_use[mem_id]) { |
121 | mutex_unlock(lock: &pruss->lock); |
122 | return -EBUSY; |
123 | } |
124 | |
125 | *region = pruss->mem_regions[mem_id]; |
126 | pruss->mem_in_use[mem_id] = region; |
127 | |
128 | mutex_unlock(lock: &pruss->lock); |
129 | |
130 | return 0; |
131 | } |
132 | EXPORT_SYMBOL_GPL(pruss_request_mem_region); |
133 | |
134 | /** |
135 | * pruss_release_mem_region() - release a memory resource |
136 | * @pruss: the pruss instance |
137 | * @region: the memory region to release |
138 | * |
139 | * This function is the complimentary function to |
140 | * pruss_request_mem_region(), and allows the client drivers to |
141 | * release back a memory resource. |
142 | * |
143 | * Return: 0 on success, an error code otherwise |
144 | */ |
145 | int pruss_release_mem_region(struct pruss *pruss, |
146 | struct pruss_mem_region *region) |
147 | { |
148 | int id; |
149 | |
150 | if (!pruss || !region) |
151 | return -EINVAL; |
152 | |
153 | mutex_lock(&pruss->lock); |
154 | |
155 | /* find out the memory region being released */ |
156 | for (id = 0; id < PRUSS_MEM_MAX; id++) { |
157 | if (pruss->mem_in_use[id] == region) |
158 | break; |
159 | } |
160 | |
161 | if (id == PRUSS_MEM_MAX) { |
162 | mutex_unlock(lock: &pruss->lock); |
163 | return -EINVAL; |
164 | } |
165 | |
166 | pruss->mem_in_use[id] = NULL; |
167 | |
168 | mutex_unlock(lock: &pruss->lock); |
169 | |
170 | return 0; |
171 | } |
172 | EXPORT_SYMBOL_GPL(pruss_release_mem_region); |
173 | |
174 | /** |
175 | * pruss_cfg_get_gpmux() - get the current GPMUX value for a PRU device |
176 | * @pruss: pruss instance |
177 | * @pru_id: PRU identifier (0-1) |
178 | * @mux: pointer to store the current mux value into |
179 | * |
180 | * Return: 0 on success, or an error code otherwise |
181 | */ |
182 | int pruss_cfg_get_gpmux(struct pruss *pruss, enum pruss_pru_id pru_id, u8 *mux) |
183 | { |
184 | int ret; |
185 | u32 val; |
186 | |
187 | if (pru_id >= PRUSS_NUM_PRUS || !mux) |
188 | return -EINVAL; |
189 | |
190 | ret = pruss_cfg_read(pruss, PRUSS_CFG_GPCFG(pru_id), val: &val); |
191 | if (!ret) |
192 | *mux = (u8)((val & PRUSS_GPCFG_PRU_MUX_SEL_MASK) >> |
193 | PRUSS_GPCFG_PRU_MUX_SEL_SHIFT); |
194 | return ret; |
195 | } |
196 | EXPORT_SYMBOL_GPL(pruss_cfg_get_gpmux); |
197 | |
198 | /** |
199 | * pruss_cfg_set_gpmux() - set the GPMUX value for a PRU device |
200 | * @pruss: pruss instance |
201 | * @pru_id: PRU identifier (0-1) |
202 | * @mux: new mux value for PRU |
203 | * |
204 | * Return: 0 on success, or an error code otherwise |
205 | */ |
206 | int pruss_cfg_set_gpmux(struct pruss *pruss, enum pruss_pru_id pru_id, u8 mux) |
207 | { |
208 | if (mux >= PRUSS_GP_MUX_SEL_MAX || |
209 | pru_id >= PRUSS_NUM_PRUS) |
210 | return -EINVAL; |
211 | |
212 | return pruss_cfg_update(pruss, PRUSS_CFG_GPCFG(pru_id), |
213 | PRUSS_GPCFG_PRU_MUX_SEL_MASK, |
214 | val: (u32)mux << PRUSS_GPCFG_PRU_MUX_SEL_SHIFT); |
215 | } |
216 | EXPORT_SYMBOL_GPL(pruss_cfg_set_gpmux); |
217 | |
218 | /** |
219 | * pruss_cfg_gpimode() - set the GPI mode of the PRU |
220 | * @pruss: the pruss instance handle |
221 | * @pru_id: id of the PRU core within the PRUSS |
222 | * @mode: GPI mode to set |
223 | * |
224 | * Sets the GPI mode for a given PRU by programming the |
225 | * corresponding PRUSS_CFG_GPCFGx register |
226 | * |
227 | * Return: 0 on success, or an error code otherwise |
228 | */ |
229 | int pruss_cfg_gpimode(struct pruss *pruss, enum pruss_pru_id pru_id, |
230 | enum pruss_gpi_mode mode) |
231 | { |
232 | if (pru_id >= PRUSS_NUM_PRUS || mode >= PRUSS_GPI_MODE_MAX) |
233 | return -EINVAL; |
234 | |
235 | return pruss_cfg_update(pruss, PRUSS_CFG_GPCFG(pru_id), |
236 | PRUSS_GPCFG_PRU_GPI_MODE_MASK, |
237 | val: mode << PRUSS_GPCFG_PRU_GPI_MODE_SHIFT); |
238 | } |
239 | EXPORT_SYMBOL_GPL(pruss_cfg_gpimode); |
240 | |
241 | /** |
242 | * pruss_cfg_miirt_enable() - Enable/disable MII RT Events |
243 | * @pruss: the pruss instance |
244 | * @enable: enable/disable |
245 | * |
246 | * Enable/disable the MII RT Events for the PRUSS. |
247 | * |
248 | * Return: 0 on success, or an error code otherwise |
249 | */ |
250 | int pruss_cfg_miirt_enable(struct pruss *pruss, bool enable) |
251 | { |
252 | u32 set = enable ? PRUSS_MII_RT_EVENT_EN : 0; |
253 | |
254 | return pruss_cfg_update(pruss, PRUSS_CFG_MII_RT, |
255 | PRUSS_MII_RT_EVENT_EN, val: set); |
256 | } |
257 | EXPORT_SYMBOL_GPL(pruss_cfg_miirt_enable); |
258 | |
259 | /** |
260 | * pruss_cfg_xfr_enable() - Enable/disable XIN XOUT shift functionality |
261 | * @pruss: the pruss instance |
262 | * @pru_type: PRU core type identifier |
263 | * @enable: enable/disable |
264 | * |
265 | * Return: 0 on success, or an error code otherwise |
266 | */ |
267 | int pruss_cfg_xfr_enable(struct pruss *pruss, enum pru_type pru_type, |
268 | bool enable) |
269 | { |
270 | u32 mask, set; |
271 | |
272 | switch (pru_type) { |
273 | case PRU_TYPE_PRU: |
274 | mask = PRUSS_SPP_XFER_SHIFT_EN; |
275 | break; |
276 | case PRU_TYPE_RTU: |
277 | mask = PRUSS_SPP_RTU_XFR_SHIFT_EN; |
278 | break; |
279 | default: |
280 | return -EINVAL; |
281 | } |
282 | |
283 | set = enable ? mask : 0; |
284 | |
285 | return pruss_cfg_update(pruss, PRUSS_CFG_SPP, mask, val: set); |
286 | } |
287 | EXPORT_SYMBOL_GPL(pruss_cfg_xfr_enable); |
288 | |
289 | static void pruss_of_free_clk_provider(void *data) |
290 | { |
291 | struct device_node *clk_mux_np = data; |
292 | |
293 | of_clk_del_provider(np: clk_mux_np); |
294 | of_node_put(node: clk_mux_np); |
295 | } |
296 | |
297 | static void pruss_clk_unregister_mux(void *data) |
298 | { |
299 | clk_unregister_mux(clk: data); |
300 | } |
301 | |
302 | static int pruss_clk_mux_setup(struct pruss *pruss, struct clk *clk_mux, |
303 | char *mux_name, struct device_node *clks_np) |
304 | { |
305 | struct device_node *clk_mux_np; |
306 | struct device *dev = pruss->dev; |
307 | char *clk_mux_name; |
308 | unsigned int num_parents; |
309 | const char **parent_names; |
310 | void __iomem *reg; |
311 | u32 reg_offset; |
312 | int ret; |
313 | |
314 | clk_mux_np = of_get_child_by_name(node: clks_np, name: mux_name); |
315 | if (!clk_mux_np) { |
316 | dev_err(dev, "%pOF is missing its '%s' node\n" , clks_np, |
317 | mux_name); |
318 | return -ENODEV; |
319 | } |
320 | |
321 | num_parents = of_clk_get_parent_count(np: clk_mux_np); |
322 | if (num_parents < 1) { |
323 | dev_err(dev, "mux-clock %pOF must have parents\n" , clk_mux_np); |
324 | ret = -EINVAL; |
325 | goto put_clk_mux_np; |
326 | } |
327 | |
328 | parent_names = devm_kcalloc(dev, n: sizeof(*parent_names), size: num_parents, |
329 | GFP_KERNEL); |
330 | if (!parent_names) { |
331 | ret = -ENOMEM; |
332 | goto put_clk_mux_np; |
333 | } |
334 | |
335 | of_clk_parent_fill(np: clk_mux_np, parents: parent_names, size: num_parents); |
336 | |
337 | clk_mux_name = devm_kasprintf(dev, GFP_KERNEL, fmt: "%s.%pOFn" , |
338 | dev_name(dev), clk_mux_np); |
339 | if (!clk_mux_name) { |
340 | ret = -ENOMEM; |
341 | goto put_clk_mux_np; |
342 | } |
343 | |
344 | ret = of_property_read_u32(np: clk_mux_np, propname: "reg" , out_value: ®_offset); |
345 | if (ret) |
346 | goto put_clk_mux_np; |
347 | |
348 | reg = pruss->cfg_base + reg_offset; |
349 | |
350 | clk_mux = clk_register_mux(NULL, clk_mux_name, parent_names, |
351 | num_parents, 0, reg, 0, 1, 0, NULL); |
352 | if (IS_ERR(ptr: clk_mux)) { |
353 | ret = PTR_ERR(ptr: clk_mux); |
354 | goto put_clk_mux_np; |
355 | } |
356 | |
357 | ret = devm_add_action_or_reset(dev, pruss_clk_unregister_mux, clk_mux); |
358 | if (ret) { |
359 | dev_err(dev, "failed to add clkmux unregister action %d" , ret); |
360 | goto put_clk_mux_np; |
361 | } |
362 | |
363 | ret = of_clk_add_provider(np: clk_mux_np, clk_src_get: of_clk_src_simple_get, data: clk_mux); |
364 | if (ret) |
365 | goto put_clk_mux_np; |
366 | |
367 | ret = devm_add_action_or_reset(dev, pruss_of_free_clk_provider, |
368 | clk_mux_np); |
369 | if (ret) { |
370 | dev_err(dev, "failed to add clkmux free action %d" , ret); |
371 | goto put_clk_mux_np; |
372 | } |
373 | |
374 | return 0; |
375 | |
376 | put_clk_mux_np: |
377 | of_node_put(node: clk_mux_np); |
378 | return ret; |
379 | } |
380 | |
381 | static int pruss_clk_init(struct pruss *pruss, struct device_node *cfg_node) |
382 | { |
383 | const struct pruss_private_data *data; |
384 | struct device_node *clks_np; |
385 | struct device *dev = pruss->dev; |
386 | int ret = 0; |
387 | |
388 | data = of_device_get_match_data(dev); |
389 | |
390 | clks_np = of_get_child_by_name(node: cfg_node, name: "clocks" ); |
391 | if (!clks_np) { |
392 | dev_err(dev, "%pOF is missing its 'clocks' node\n" , cfg_node); |
393 | return -ENODEV; |
394 | } |
395 | |
396 | if (data && data->has_core_mux_clock) { |
397 | ret = pruss_clk_mux_setup(pruss, clk_mux: pruss->core_clk_mux, |
398 | mux_name: "coreclk-mux" , clks_np); |
399 | if (ret) { |
400 | dev_err(dev, "failed to setup coreclk-mux\n" ); |
401 | goto put_clks_node; |
402 | } |
403 | } |
404 | |
405 | ret = pruss_clk_mux_setup(pruss, clk_mux: pruss->iep_clk_mux, mux_name: "iepclk-mux" , |
406 | clks_np); |
407 | if (ret) { |
408 | dev_err(dev, "failed to setup iepclk-mux\n" ); |
409 | goto put_clks_node; |
410 | } |
411 | |
412 | put_clks_node: |
413 | of_node_put(node: clks_np); |
414 | |
415 | return ret; |
416 | } |
417 | |
418 | static struct regmap_config regmap_conf = { |
419 | .reg_bits = 32, |
420 | .val_bits = 32, |
421 | .reg_stride = 4, |
422 | }; |
423 | |
424 | static int pruss_cfg_of_init(struct device *dev, struct pruss *pruss) |
425 | { |
426 | struct device_node *np = dev_of_node(dev); |
427 | struct device_node *child; |
428 | struct resource res; |
429 | int ret; |
430 | |
431 | child = of_get_child_by_name(node: np, name: "cfg" ); |
432 | if (!child) { |
433 | dev_err(dev, "%pOF is missing its 'cfg' node\n" , child); |
434 | return -ENODEV; |
435 | } |
436 | |
437 | if (of_address_to_resource(dev: child, index: 0, r: &res)) { |
438 | ret = -ENOMEM; |
439 | goto node_put; |
440 | } |
441 | |
442 | pruss->cfg_base = devm_ioremap(dev, offset: res.start, size: resource_size(res: &res)); |
443 | if (!pruss->cfg_base) { |
444 | ret = -ENOMEM; |
445 | goto node_put; |
446 | } |
447 | |
448 | regmap_conf.name = kasprintf(GFP_KERNEL, fmt: "%pOFn@%llx" , child, |
449 | (u64)res.start); |
450 | regmap_conf.max_register = resource_size(res: &res) - 4; |
451 | |
452 | pruss->cfg_regmap = devm_regmap_init_mmio(dev, pruss->cfg_base, |
453 | ®map_conf); |
454 | kfree(objp: regmap_conf.name); |
455 | if (IS_ERR(ptr: pruss->cfg_regmap)) { |
456 | dev_err(dev, "regmap_init_mmio failed for cfg, ret = %ld\n" , |
457 | PTR_ERR(pruss->cfg_regmap)); |
458 | ret = PTR_ERR(ptr: pruss->cfg_regmap); |
459 | goto node_put; |
460 | } |
461 | |
462 | ret = pruss_clk_init(pruss, cfg_node: child); |
463 | if (ret) |
464 | dev_err(dev, "pruss_clk_init failed, ret = %d\n" , ret); |
465 | |
466 | node_put: |
467 | of_node_put(node: child); |
468 | return ret; |
469 | } |
470 | |
471 | static int pruss_probe(struct platform_device *pdev) |
472 | { |
473 | struct device *dev = &pdev->dev; |
474 | struct device_node *np = dev_of_node(dev); |
475 | struct device_node *child; |
476 | struct pruss *pruss; |
477 | struct resource res; |
478 | int ret, i, index; |
479 | const struct pruss_private_data *data; |
480 | const char *mem_names[PRUSS_MEM_MAX] = { "dram0" , "dram1" , "shrdram2" }; |
481 | |
482 | data = of_device_get_match_data(dev: &pdev->dev); |
483 | |
484 | ret = dma_set_coherent_mask(dev, DMA_BIT_MASK(32)); |
485 | if (ret) { |
486 | dev_err(dev, "failed to set the DMA coherent mask" ); |
487 | return ret; |
488 | } |
489 | |
490 | pruss = devm_kzalloc(dev, size: sizeof(*pruss), GFP_KERNEL); |
491 | if (!pruss) |
492 | return -ENOMEM; |
493 | |
494 | pruss->dev = dev; |
495 | mutex_init(&pruss->lock); |
496 | |
497 | child = of_get_child_by_name(node: np, name: "memories" ); |
498 | if (!child) { |
499 | dev_err(dev, "%pOF is missing its 'memories' node\n" , child); |
500 | return -ENODEV; |
501 | } |
502 | |
503 | for (i = 0; i < PRUSS_MEM_MAX; i++) { |
504 | /* |
505 | * On AM437x one of two PRUSS units don't contain Shared RAM, |
506 | * skip it |
507 | */ |
508 | if (data && data->has_no_sharedram && i == PRUSS_MEM_SHRD_RAM2) |
509 | continue; |
510 | |
511 | index = of_property_match_string(np: child, propname: "reg-names" , |
512 | string: mem_names[i]); |
513 | if (index < 0) { |
514 | of_node_put(node: child); |
515 | return index; |
516 | } |
517 | |
518 | if (of_address_to_resource(dev: child, index, r: &res)) { |
519 | of_node_put(node: child); |
520 | return -EINVAL; |
521 | } |
522 | |
523 | pruss->mem_regions[i].va = devm_ioremap(dev, offset: res.start, |
524 | size: resource_size(res: &res)); |
525 | if (!pruss->mem_regions[i].va) { |
526 | dev_err(dev, "failed to parse and map memory resource %d %s\n" , |
527 | i, mem_names[i]); |
528 | of_node_put(node: child); |
529 | return -ENOMEM; |
530 | } |
531 | pruss->mem_regions[i].pa = res.start; |
532 | pruss->mem_regions[i].size = resource_size(res: &res); |
533 | |
534 | dev_dbg(dev, "memory %8s: pa %pa size 0x%zx va %pK\n" , |
535 | mem_names[i], &pruss->mem_regions[i].pa, |
536 | pruss->mem_regions[i].size, pruss->mem_regions[i].va); |
537 | } |
538 | of_node_put(node: child); |
539 | |
540 | platform_set_drvdata(pdev, data: pruss); |
541 | |
542 | pm_runtime_enable(dev); |
543 | ret = pm_runtime_resume_and_get(dev); |
544 | if (ret < 0) { |
545 | dev_err(dev, "couldn't enable module\n" ); |
546 | goto rpm_disable; |
547 | } |
548 | |
549 | ret = pruss_cfg_of_init(dev, pruss); |
550 | if (ret < 0) |
551 | goto rpm_put; |
552 | |
553 | ret = devm_of_platform_populate(dev); |
554 | if (ret) { |
555 | dev_err(dev, "failed to register child devices\n" ); |
556 | goto rpm_put; |
557 | } |
558 | |
559 | return 0; |
560 | |
561 | rpm_put: |
562 | pm_runtime_put_sync(dev); |
563 | rpm_disable: |
564 | pm_runtime_disable(dev); |
565 | return ret; |
566 | } |
567 | |
568 | static void pruss_remove(struct platform_device *pdev) |
569 | { |
570 | struct device *dev = &pdev->dev; |
571 | |
572 | devm_of_platform_depopulate(dev); |
573 | |
574 | pm_runtime_put_sync(dev); |
575 | pm_runtime_disable(dev); |
576 | } |
577 | |
578 | /* instance-specific driver private data */ |
579 | static const struct pruss_private_data am437x_pruss1_data = { |
580 | .has_no_sharedram = false, |
581 | }; |
582 | |
583 | static const struct pruss_private_data am437x_pruss0_data = { |
584 | .has_no_sharedram = true, |
585 | }; |
586 | |
587 | static const struct pruss_private_data am65x_j721e_pruss_data = { |
588 | .has_core_mux_clock = true, |
589 | }; |
590 | |
591 | static const struct of_device_id pruss_of_match[] = { |
592 | { .compatible = "ti,am3356-pruss" }, |
593 | { .compatible = "ti,am4376-pruss0" , .data = &am437x_pruss0_data, }, |
594 | { .compatible = "ti,am4376-pruss1" , .data = &am437x_pruss1_data, }, |
595 | { .compatible = "ti,am5728-pruss" }, |
596 | { .compatible = "ti,k2g-pruss" }, |
597 | { .compatible = "ti,am654-icssg" , .data = &am65x_j721e_pruss_data, }, |
598 | { .compatible = "ti,j721e-icssg" , .data = &am65x_j721e_pruss_data, }, |
599 | { .compatible = "ti,am642-icssg" , .data = &am65x_j721e_pruss_data, }, |
600 | { .compatible = "ti,am625-pruss" , .data = &am65x_j721e_pruss_data, }, |
601 | {}, |
602 | }; |
603 | MODULE_DEVICE_TABLE(of, pruss_of_match); |
604 | |
605 | static struct platform_driver pruss_driver = { |
606 | .driver = { |
607 | .name = "pruss" , |
608 | .of_match_table = pruss_of_match, |
609 | }, |
610 | .probe = pruss_probe, |
611 | .remove_new = pruss_remove, |
612 | }; |
613 | module_platform_driver(pruss_driver); |
614 | |
615 | MODULE_AUTHOR("Suman Anna <s-anna@ti.com>" ); |
616 | MODULE_DESCRIPTION("PRU-ICSS Subsystem Driver" ); |
617 | MODULE_LICENSE("GPL v2" ); |
618 | |