1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (c) 2017 Pengutronix, Oleksij Rempel <kernel@pengutronix.de>
6 #include <linux/arm-smccc.h>
9 #include <linux/interrupt.h>
10 #include <linux/kernel.h>
11 #include <linux/mailbox_client.h>
12 #include <linux/mfd/syscon.h>
13 #include <linux/module.h>
14 #include <linux/of_address.h>
15 #include <linux/of_reserved_mem.h>
16 #include <linux/of_device.h>
17 #include <linux/platform_device.h>
18 #include <linux/regmap.h>
19 #include <linux/remoteproc.h>
20 #include <linux/workqueue.h>
22 #include "imx_rproc.h"
23 #include "remoteproc_internal.h"
25 #define IMX7D_SRC_SCR 0x0C
26 #define IMX7D_ENABLE_M4 BIT(3)
27 #define IMX7D_SW_M4P_RST BIT(2)
28 #define IMX7D_SW_M4C_RST BIT(1)
29 #define IMX7D_SW_M4C_NON_SCLR_RST BIT(0)
31 #define IMX7D_M4_RST_MASK (IMX7D_ENABLE_M4 | IMX7D_SW_M4P_RST \
33 | IMX7D_SW_M4C_NON_SCLR_RST)
35 #define IMX7D_M4_START (IMX7D_ENABLE_M4 | IMX7D_SW_M4P_RST \
37 #define IMX7D_M4_STOP (IMX7D_ENABLE_M4 | IMX7D_SW_M4C_RST | \
38 IMX7D_SW_M4C_NON_SCLR_RST)
40 /* Address: 0x020D8000 */
41 #define IMX6SX_SRC_SCR 0x00
42 #define IMX6SX_ENABLE_M4 BIT(22)
43 #define IMX6SX_SW_M4P_RST BIT(12)
44 #define IMX6SX_SW_M4C_NON_SCLR_RST BIT(4)
45 #define IMX6SX_SW_M4C_RST BIT(3)
47 #define IMX6SX_M4_START (IMX6SX_ENABLE_M4 | IMX6SX_SW_M4P_RST \
49 #define IMX6SX_M4_STOP (IMX6SX_ENABLE_M4 | IMX6SX_SW_M4C_RST | \
50 IMX6SX_SW_M4C_NON_SCLR_RST)
51 #define IMX6SX_M4_RST_MASK (IMX6SX_ENABLE_M4 | IMX6SX_SW_M4P_RST \
52 | IMX6SX_SW_M4C_NON_SCLR_RST \
55 #define IMX_RPROC_MEM_MAX 32
57 #define IMX_SIP_RPROC 0xC2000005
58 #define IMX_SIP_RPROC_START 0x00
59 #define IMX_SIP_RPROC_STARTED 0x01
60 #define IMX_SIP_RPROC_STOP 0x02
63 * struct imx_rproc_mem - slim internal memory structure
64 * @cpu_addr: MPU virtual address of the memory region
65 * @sys_addr: Bus address used to access the memory region
66 * @size: Size of the memory region
68 struct imx_rproc_mem {
69 void __iomem *cpu_addr;
75 /* M4 own area. Can be mapped at probe */
76 #define ATT_OWN BIT(1)
77 #define ATT_IOMEM BIT(2)
81 struct regmap *regmap;
83 const struct imx_rproc_dcfg *dcfg;
84 struct imx_rproc_mem mem[IMX_RPROC_MEM_MAX];
86 struct mbox_client cl;
87 struct mbox_chan *tx_ch;
88 struct mbox_chan *rx_ch;
89 struct work_struct rproc_work;
90 struct workqueue_struct *workqueue;
91 void __iomem *rsc_table;
94 static const struct imx_rproc_att imx_rproc_att_imx8mn[] = {
95 /* dev addr , sys addr , size , flags */
97 { 0x00000000, 0x007E0000, 0x00020000, ATT_OWN | ATT_IOMEM },
99 { 0x00180000, 0x00180000, 0x00009000, 0 },
101 { 0x00900000, 0x00900000, 0x00020000, 0 },
103 { 0x00920000, 0x00920000, 0x00020000, 0 },
105 { 0x00940000, 0x00940000, 0x00050000, 0 },
106 /* QSPI Code - alias */
107 { 0x08000000, 0x08000000, 0x08000000, 0 },
108 /* DDR (Code) - alias */
109 { 0x10000000, 0x40000000, 0x0FFE0000, 0 },
111 { 0x20000000, 0x00800000, 0x00020000, ATT_OWN | ATT_IOMEM },
112 /* OCRAM_S - alias */
113 { 0x20180000, 0x00180000, 0x00008000, ATT_OWN },
115 { 0x20200000, 0x00900000, 0x00020000, ATT_OWN },
117 { 0x20220000, 0x00920000, 0x00020000, ATT_OWN },
119 { 0x20240000, 0x00940000, 0x00040000, ATT_OWN },
121 { 0x40000000, 0x40000000, 0x80000000, 0 },
124 static const struct imx_rproc_att imx_rproc_att_imx8mq[] = {
125 /* dev addr , sys addr , size , flags */
127 { 0x00000000, 0x007e0000, 0x00020000, ATT_IOMEM},
129 { 0x00180000, 0x00180000, 0x00008000, 0 },
131 { 0x00900000, 0x00900000, 0x00020000, 0 },
133 { 0x00920000, 0x00920000, 0x00020000, 0 },
134 /* QSPI Code - alias */
135 { 0x08000000, 0x08000000, 0x08000000, 0 },
136 /* DDR (Code) - alias */
137 { 0x10000000, 0x80000000, 0x0FFE0000, 0 },
139 { 0x1FFE0000, 0x007E0000, 0x00020000, ATT_OWN | ATT_IOMEM},
141 { 0x20000000, 0x00800000, 0x00020000, ATT_OWN | ATT_IOMEM},
143 { 0x20180000, 0x00180000, 0x00008000, ATT_OWN },
145 { 0x20200000, 0x00900000, 0x00020000, ATT_OWN },
147 { 0x20220000, 0x00920000, 0x00020000, ATT_OWN },
149 { 0x40000000, 0x40000000, 0x80000000, 0 },
152 static const struct imx_rproc_att imx_rproc_att_imx8ulp[] = {
153 {0x1FFC0000, 0x1FFC0000, 0xC0000, ATT_OWN},
154 {0x21000000, 0x21000000, 0x10000, ATT_OWN},
155 {0x80000000, 0x80000000, 0x60000000, 0}
158 static const struct imx_rproc_att imx_rproc_att_imx7ulp[] = {
159 {0x1FFD0000, 0x1FFD0000, 0x30000, ATT_OWN},
160 {0x20000000, 0x20000000, 0x10000, ATT_OWN},
161 {0x2F000000, 0x2F000000, 0x20000, ATT_OWN},
162 {0x2F020000, 0x2F020000, 0x20000, ATT_OWN},
163 {0x60000000, 0x60000000, 0x40000000, 0}
166 static const struct imx_rproc_att imx_rproc_att_imx7d[] = {
167 /* dev addr , sys addr , size , flags */
168 /* OCRAM_S (M4 Boot code) - alias */
169 { 0x00000000, 0x00180000, 0x00008000, 0 },
171 { 0x00180000, 0x00180000, 0x00008000, ATT_OWN },
172 /* OCRAM (Code) - alias */
173 { 0x00900000, 0x00900000, 0x00020000, 0 },
174 /* OCRAM_EPDC (Code) - alias */
175 { 0x00920000, 0x00920000, 0x00020000, 0 },
176 /* OCRAM_PXP (Code) - alias */
177 { 0x00940000, 0x00940000, 0x00008000, 0 },
179 { 0x1FFF8000, 0x007F8000, 0x00008000, ATT_OWN | ATT_IOMEM },
180 /* DDR (Code) - alias, first part of DDR (Data) */
181 { 0x10000000, 0x80000000, 0x0FFF0000, 0 },
184 { 0x20000000, 0x00800000, 0x00008000, ATT_OWN | ATT_IOMEM },
186 { 0x20200000, 0x00900000, 0x00020000, 0 },
187 /* OCRAM_EPDC (Data) */
188 { 0x20220000, 0x00920000, 0x00020000, 0 },
189 /* OCRAM_PXP (Data) */
190 { 0x20240000, 0x00940000, 0x00008000, 0 },
192 { 0x80000000, 0x80000000, 0x60000000, 0 },
195 static const struct imx_rproc_att imx_rproc_att_imx6sx[] = {
196 /* dev addr , sys addr , size , flags */
197 /* TCML (M4 Boot Code) - alias */
198 { 0x00000000, 0x007F8000, 0x00008000, ATT_IOMEM },
200 { 0x00180000, 0x008F8000, 0x00004000, 0 },
201 /* OCRAM_S (Code) - alias */
202 { 0x00180000, 0x008FC000, 0x00004000, 0 },
204 { 0x1FFF8000, 0x007F8000, 0x00008000, ATT_OWN | ATT_IOMEM },
205 /* DDR (Code) - alias, first part of DDR (Data) */
206 { 0x10000000, 0x80000000, 0x0FFF8000, 0 },
209 { 0x20000000, 0x00800000, 0x00008000, ATT_OWN | ATT_IOMEM },
210 /* OCRAM_S (Data) - alias? */
211 { 0x208F8000, 0x008F8000, 0x00004000, 0 },
213 { 0x80000000, 0x80000000, 0x60000000, 0 },
216 static const struct imx_rproc_dcfg imx_rproc_cfg_imx8mn = {
217 .att = imx_rproc_att_imx8mn,
218 .att_size = ARRAY_SIZE(imx_rproc_att_imx8mn),
219 .method = IMX_RPROC_SMC,
222 static const struct imx_rproc_dcfg imx_rproc_cfg_imx8mq = {
223 .src_reg = IMX7D_SRC_SCR,
224 .src_mask = IMX7D_M4_RST_MASK,
225 .src_start = IMX7D_M4_START,
226 .src_stop = IMX7D_M4_STOP,
227 .att = imx_rproc_att_imx8mq,
228 .att_size = ARRAY_SIZE(imx_rproc_att_imx8mq),
229 .method = IMX_RPROC_MMIO,
232 static const struct imx_rproc_dcfg imx_rproc_cfg_imx8ulp = {
233 .att = imx_rproc_att_imx8ulp,
234 .att_size = ARRAY_SIZE(imx_rproc_att_imx8ulp),
235 .method = IMX_RPROC_NONE,
238 static const struct imx_rproc_dcfg imx_rproc_cfg_imx7ulp = {
239 .att = imx_rproc_att_imx7ulp,
240 .att_size = ARRAY_SIZE(imx_rproc_att_imx7ulp),
241 .method = IMX_RPROC_NONE,
244 static const struct imx_rproc_dcfg imx_rproc_cfg_imx7d = {
245 .src_reg = IMX7D_SRC_SCR,
246 .src_mask = IMX7D_M4_RST_MASK,
247 .src_start = IMX7D_M4_START,
248 .src_stop = IMX7D_M4_STOP,
249 .att = imx_rproc_att_imx7d,
250 .att_size = ARRAY_SIZE(imx_rproc_att_imx7d),
251 .method = IMX_RPROC_MMIO,
254 static const struct imx_rproc_dcfg imx_rproc_cfg_imx6sx = {
255 .src_reg = IMX6SX_SRC_SCR,
256 .src_mask = IMX6SX_M4_RST_MASK,
257 .src_start = IMX6SX_M4_START,
258 .src_stop = IMX6SX_M4_STOP,
259 .att = imx_rproc_att_imx6sx,
260 .att_size = ARRAY_SIZE(imx_rproc_att_imx6sx),
261 .method = IMX_RPROC_MMIO,
264 static int imx_rproc_start(struct rproc *rproc)
266 struct imx_rproc *priv = rproc->priv;
267 const struct imx_rproc_dcfg *dcfg = priv->dcfg;
268 struct device *dev = priv->dev;
269 struct arm_smccc_res res;
272 switch (dcfg->method) {
274 ret = regmap_update_bits(priv->regmap, dcfg->src_reg, dcfg->src_mask,
278 arm_smccc_smc(IMX_SIP_RPROC, IMX_SIP_RPROC_START, 0, 0, 0, 0, 0, 0, &res);
286 dev_err(dev, "Failed to enable remote core!\n");
291 static int imx_rproc_stop(struct rproc *rproc)
293 struct imx_rproc *priv = rproc->priv;
294 const struct imx_rproc_dcfg *dcfg = priv->dcfg;
295 struct device *dev = priv->dev;
296 struct arm_smccc_res res;
299 switch (dcfg->method) {
301 ret = regmap_update_bits(priv->regmap, dcfg->src_reg, dcfg->src_mask,
305 arm_smccc_smc(IMX_SIP_RPROC, IMX_SIP_RPROC_STOP, 0, 0, 0, 0, 0, 0, &res);
308 dev_info(dev, "Not in wfi, force stopped\n");
315 dev_err(dev, "Failed to stop remote core\n");
320 static int imx_rproc_da_to_sys(struct imx_rproc *priv, u64 da,
321 size_t len, u64 *sys, bool *is_iomem)
323 const struct imx_rproc_dcfg *dcfg = priv->dcfg;
326 /* parse address translation table */
327 for (i = 0; i < dcfg->att_size; i++) {
328 const struct imx_rproc_att *att = &dcfg->att[i];
330 if (da >= att->da && da + len < att->da + att->size) {
331 unsigned int offset = da - att->da;
333 *sys = att->sa + offset;
335 *is_iomem = att->flags & ATT_IOMEM;
340 dev_warn(priv->dev, "Translation failed: da = 0x%llx len = 0x%zx\n",
345 static void *imx_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem)
347 struct imx_rproc *priv = rproc->priv;
356 * On device side we have many aliases, so we need to convert device
357 * address (M4) to system bus address first.
359 if (imx_rproc_da_to_sys(priv, da, len, &sys, is_iomem))
362 for (i = 0; i < IMX_RPROC_MEM_MAX; i++) {
363 if (sys >= priv->mem[i].sys_addr && sys + len <
364 priv->mem[i].sys_addr + priv->mem[i].size) {
365 unsigned int offset = sys - priv->mem[i].sys_addr;
366 /* __force to make sparse happy with type conversion */
367 va = (__force void *)(priv->mem[i].cpu_addr + offset);
372 dev_dbg(&rproc->dev, "da = 0x%llx len = 0x%zx va = 0x%p\n",
378 static int imx_rproc_mem_alloc(struct rproc *rproc,
379 struct rproc_mem_entry *mem)
381 struct device *dev = rproc->dev.parent;
384 dev_dbg(dev, "map memory: %p+%zx\n", &mem->dma, mem->len);
385 va = ioremap_wc(mem->dma, mem->len);
386 if (IS_ERR_OR_NULL(va)) {
387 dev_err(dev, "Unable to map memory region: %p+%zx\n",
388 &mem->dma, mem->len);
392 /* Update memory entry va */
398 static int imx_rproc_mem_release(struct rproc *rproc,
399 struct rproc_mem_entry *mem)
401 dev_dbg(rproc->dev.parent, "unmap memory: %pa\n", &mem->dma);
407 static int imx_rproc_prepare(struct rproc *rproc)
409 struct imx_rproc *priv = rproc->priv;
410 struct device_node *np = priv->dev->of_node;
411 struct of_phandle_iterator it;
412 struct rproc_mem_entry *mem;
413 struct reserved_mem *rmem;
416 /* Register associated reserved memory regions */
417 of_phandle_iterator_init(&it, np, "memory-region", NULL, 0);
418 while (of_phandle_iterator_next(&it) == 0) {
420 * Ignore the first memory region which will be used vdev buffer.
421 * No need to do extra handlings, rproc_add_virtio_dev will handle it.
423 if (!strcmp(it.node->name, "vdev0buffer"))
426 rmem = of_reserved_mem_lookup(it.node);
428 dev_err(priv->dev, "unable to acquire memory-region\n");
432 /* No need to translate pa to da, i.MX use same map */
435 /* Register memory region */
436 mem = rproc_mem_entry_init(priv->dev, NULL, (dma_addr_t)rmem->base, rmem->size, da,
437 imx_rproc_mem_alloc, imx_rproc_mem_release,
441 rproc_coredump_add_segment(rproc, da, rmem->size);
445 rproc_add_carveout(rproc, mem);
451 static int imx_rproc_parse_fw(struct rproc *rproc, const struct firmware *fw)
455 ret = rproc_elf_load_rsc_table(rproc, fw);
457 dev_info(&rproc->dev, "No resource table in elf\n");
462 static void imx_rproc_kick(struct rproc *rproc, int vqid)
464 struct imx_rproc *priv = rproc->priv;
469 dev_err(priv->dev, "No initialized mbox tx channel\n");
474 * Send the index of the triggered virtqueue as the mu payload.
475 * Let remote processor know which virtqueue is used.
479 err = mbox_send_message(priv->tx_ch, (void *)&mmsg);
481 dev_err(priv->dev, "%s: failed (%d, err:%d)\n",
482 __func__, vqid, err);
485 static int imx_rproc_attach(struct rproc *rproc)
490 static struct resource_table *imx_rproc_get_loaded_rsc_table(struct rproc *rproc, size_t *table_sz)
492 struct imx_rproc *priv = rproc->priv;
494 /* The resource table has already been mapped in imx_rproc_addr_init */
495 if (!priv->rsc_table)
499 return (struct resource_table *)priv->rsc_table;
502 static const struct rproc_ops imx_rproc_ops = {
503 .prepare = imx_rproc_prepare,
504 .attach = imx_rproc_attach,
505 .start = imx_rproc_start,
506 .stop = imx_rproc_stop,
507 .kick = imx_rproc_kick,
508 .da_to_va = imx_rproc_da_to_va,
509 .load = rproc_elf_load_segments,
510 .parse_fw = imx_rproc_parse_fw,
511 .find_loaded_rsc_table = rproc_elf_find_loaded_rsc_table,
512 .get_loaded_rsc_table = imx_rproc_get_loaded_rsc_table,
513 .sanity_check = rproc_elf_sanity_check,
514 .get_boot_addr = rproc_elf_get_boot_addr,
517 static int imx_rproc_addr_init(struct imx_rproc *priv,
518 struct platform_device *pdev)
520 const struct imx_rproc_dcfg *dcfg = priv->dcfg;
521 struct device *dev = &pdev->dev;
522 struct device_node *np = dev->of_node;
523 int a, b = 0, err, nph;
525 /* remap required addresses */
526 for (a = 0; a < dcfg->att_size; a++) {
527 const struct imx_rproc_att *att = &dcfg->att[a];
529 if (!(att->flags & ATT_OWN))
532 if (b >= IMX_RPROC_MEM_MAX)
535 if (att->flags & ATT_IOMEM)
536 priv->mem[b].cpu_addr = devm_ioremap(&pdev->dev,
539 priv->mem[b].cpu_addr = devm_ioremap_wc(&pdev->dev,
541 if (!priv->mem[b].cpu_addr) {
542 dev_err(dev, "failed to remap %#x bytes from %#x\n", att->size, att->sa);
545 priv->mem[b].sys_addr = att->sa;
546 priv->mem[b].size = att->size;
550 /* memory-region is optional property */
551 nph = of_count_phandle_with_args(np, "memory-region", NULL);
555 /* remap optional addresses */
556 for (a = 0; a < nph; a++) {
557 struct device_node *node;
560 node = of_parse_phandle(np, "memory-region", a);
561 /* Not map vdevbuffer, vdevring region */
562 if (!strncmp(node->name, "vdev", strlen("vdev")))
564 err = of_address_to_resource(node, 0, &res);
566 dev_err(dev, "unable to resolve memory region\n");
572 if (b >= IMX_RPROC_MEM_MAX)
575 /* Not use resource version, because we might share region */
576 priv->mem[b].cpu_addr = devm_ioremap_wc(&pdev->dev, res.start, resource_size(&res));
577 if (!priv->mem[b].cpu_addr) {
578 dev_err(dev, "failed to remap %pr\n", &res);
581 priv->mem[b].sys_addr = res.start;
582 priv->mem[b].size = resource_size(&res);
583 if (!strcmp(node->name, "rsc-table"))
584 priv->rsc_table = priv->mem[b].cpu_addr;
591 static void imx_rproc_vq_work(struct work_struct *work)
593 struct imx_rproc *priv = container_of(work, struct imx_rproc,
596 rproc_vq_interrupt(priv->rproc, 0);
597 rproc_vq_interrupt(priv->rproc, 1);
600 static void imx_rproc_rx_callback(struct mbox_client *cl, void *msg)
602 struct rproc *rproc = dev_get_drvdata(cl->dev);
603 struct imx_rproc *priv = rproc->priv;
605 queue_work(priv->workqueue, &priv->rproc_work);
608 static int imx_rproc_xtr_mbox_init(struct rproc *rproc)
610 struct imx_rproc *priv = rproc->priv;
611 struct device *dev = priv->dev;
612 struct mbox_client *cl;
615 if (!of_get_property(dev->of_node, "mbox-names", NULL))
622 cl->knows_txdone = false;
623 cl->rx_callback = imx_rproc_rx_callback;
625 priv->tx_ch = mbox_request_channel_byname(cl, "tx");
626 if (IS_ERR(priv->tx_ch)) {
627 ret = PTR_ERR(priv->tx_ch);
628 return dev_err_probe(cl->dev, ret,
629 "failed to request tx mailbox channel: %d\n", ret);
632 priv->rx_ch = mbox_request_channel_byname(cl, "rx");
633 if (IS_ERR(priv->rx_ch)) {
634 mbox_free_channel(priv->tx_ch);
635 ret = PTR_ERR(priv->rx_ch);
636 return dev_err_probe(cl->dev, ret,
637 "failed to request rx mailbox channel: %d\n", ret);
643 static void imx_rproc_free_mbox(struct rproc *rproc)
645 struct imx_rproc *priv = rproc->priv;
647 mbox_free_channel(priv->tx_ch);
648 mbox_free_channel(priv->rx_ch);
651 static int imx_rproc_detect_mode(struct imx_rproc *priv)
653 struct regmap_config config = { .name = "imx-rproc" };
654 const struct imx_rproc_dcfg *dcfg = priv->dcfg;
655 struct device *dev = priv->dev;
656 struct regmap *regmap;
657 struct arm_smccc_res res;
661 switch (dcfg->method) {
663 priv->rproc->state = RPROC_DETACHED;
666 arm_smccc_smc(IMX_SIP_RPROC, IMX_SIP_RPROC_STARTED, 0, 0, 0, 0, 0, 0, &res);
668 priv->rproc->state = RPROC_DETACHED;
674 regmap = syscon_regmap_lookup_by_phandle(dev->of_node, "syscon");
675 if (IS_ERR(regmap)) {
676 dev_err(dev, "failed to find syscon\n");
677 return PTR_ERR(regmap);
680 priv->regmap = regmap;
681 regmap_attach_dev(dev, regmap, &config);
683 ret = regmap_read(regmap, dcfg->src_reg, &val);
685 dev_err(dev, "Failed to read src\n");
689 if ((val & dcfg->src_mask) != dcfg->src_stop)
690 priv->rproc->state = RPROC_DETACHED;
695 static int imx_rproc_clk_enable(struct imx_rproc *priv)
697 const struct imx_rproc_dcfg *dcfg = priv->dcfg;
698 struct device *dev = priv->dev;
701 /* Remote core is not under control of Linux */
702 if (dcfg->method == IMX_RPROC_NONE)
705 priv->clk = devm_clk_get(dev, NULL);
706 if (IS_ERR(priv->clk)) {
707 dev_err(dev, "Failed to get clock\n");
708 return PTR_ERR(priv->clk);
712 * clk for M4 block including memory. Should be
713 * enabled before .start for FW transfer.
715 ret = clk_prepare_enable(priv->clk);
717 dev_err(dev, "Failed to enable clock\n");
724 static int imx_rproc_probe(struct platform_device *pdev)
726 struct device *dev = &pdev->dev;
727 struct device_node *np = dev->of_node;
728 struct imx_rproc *priv;
730 const struct imx_rproc_dcfg *dcfg;
733 /* set some other name then imx */
734 rproc = rproc_alloc(dev, "imx-rproc", &imx_rproc_ops,
735 NULL, sizeof(*priv));
739 dcfg = of_device_get_match_data(dev);
750 dev_set_drvdata(dev, rproc);
751 priv->workqueue = create_workqueue(dev_name(dev));
752 if (!priv->workqueue) {
753 dev_err(dev, "cannot create workqueue\n");
758 ret = imx_rproc_xtr_mbox_init(rproc);
762 ret = imx_rproc_addr_init(priv, pdev);
764 dev_err(dev, "failed on imx_rproc_addr_init\n");
768 ret = imx_rproc_detect_mode(priv);
772 ret = imx_rproc_clk_enable(priv);
776 INIT_WORK(&priv->rproc_work, imx_rproc_vq_work);
778 if (rproc->state != RPROC_DETACHED)
779 rproc->auto_boot = of_property_read_bool(np, "fsl,auto-boot");
781 ret = rproc_add(rproc);
783 dev_err(dev, "rproc_add failed\n");
790 clk_disable_unprepare(priv->clk);
792 imx_rproc_free_mbox(rproc);
794 destroy_workqueue(priv->workqueue);
801 static int imx_rproc_remove(struct platform_device *pdev)
803 struct rproc *rproc = platform_get_drvdata(pdev);
804 struct imx_rproc *priv = rproc->priv;
806 clk_disable_unprepare(priv->clk);
808 imx_rproc_free_mbox(rproc);
809 destroy_workqueue(priv->workqueue);
815 static const struct of_device_id imx_rproc_of_match[] = {
816 { .compatible = "fsl,imx7ulp-cm4", .data = &imx_rproc_cfg_imx7ulp },
817 { .compatible = "fsl,imx7d-cm4", .data = &imx_rproc_cfg_imx7d },
818 { .compatible = "fsl,imx6sx-cm4", .data = &imx_rproc_cfg_imx6sx },
819 { .compatible = "fsl,imx8mq-cm4", .data = &imx_rproc_cfg_imx8mq },
820 { .compatible = "fsl,imx8mm-cm4", .data = &imx_rproc_cfg_imx8mq },
821 { .compatible = "fsl,imx8mn-cm7", .data = &imx_rproc_cfg_imx8mn },
822 { .compatible = "fsl,imx8mp-cm7", .data = &imx_rproc_cfg_imx8mn },
823 { .compatible = "fsl,imx8ulp-cm33", .data = &imx_rproc_cfg_imx8ulp },
826 MODULE_DEVICE_TABLE(of, imx_rproc_of_match);
828 static struct platform_driver imx_rproc_driver = {
829 .probe = imx_rproc_probe,
830 .remove = imx_rproc_remove,
833 .of_match_table = imx_rproc_of_match,
837 module_platform_driver(imx_rproc_driver);
839 MODULE_LICENSE("GPL v2");
840 MODULE_DESCRIPTION("i.MX remote processor control driver");
841 MODULE_AUTHOR("Oleksij Rempel <o.rempel@pengutronix.de>");