1 // SPDX-License-Identifier: GPL-2.0+
3 * Texas Instruments System Control Interface Protocol Driver
4 * Based on drivers/firmware/ti_sci.c from Linux.
6 * Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com/
7 * Lokesh Vutla <lokeshvutla@ti.com>
16 #include <dm/device.h>
17 #include <dm/device_compat.h>
18 #include <dm/devres.h>
19 #include <linux/bitops.h>
20 #include <linux/compat.h>
21 #include <linux/err.h>
22 #include <linux/soc/ti/k3-sec-proxy.h>
23 #include <linux/soc/ti/ti_sci_protocol.h>
26 #include "ti_sci_static_data.h"
28 /* List of all TI SCI devices active in system */
29 static LIST_HEAD(ti_sci_list);
32 * struct ti_sci_xfer - Structure representing a message flow
33 * @tx_message: Transmit message
34 * @rx_len: Receive message length
37 struct k3_sec_proxy_msg tx_message;
42 * struct ti_sci_rm_type_map - Structure representing TISCI Resource
43 * management representation of dev_ids.
44 * @dev_id: TISCI device ID
45 * @type: Corresponding id as identified by TISCI RM.
47 * Note: This is used only as a work around for using RM range apis
48 * for AM654 SoC. For future SoCs dev_id will be used as type
49 * for RM range APIs. In order to maintain ABI backward compatibility
50 * type is not being changed for AM654 SoC.
52 struct ti_sci_rm_type_map {
58 * struct ti_sci_desc - Description of SoC integration
59 * @default_host_id: Host identifier representing the compute entity
60 * @max_rx_timeout_ms: Timeout for communication with SoC (in Milliseconds)
61 * @max_msgs: Maximum number of messages that can be pending
62 * simultaneously in the system
63 * @max_msg_size: Maximum size of data per message that can be handled.
67 int max_rx_timeout_ms;
73 * struct ti_sci_info - Structure representing a TI SCI instance
74 * @dev: Device pointer
75 * @desc: SoC description for this instance
76 * @handle: Instance of TI SCI handle to send to clients.
77 * @chan_tx: Transmit mailbox channel
78 * @chan_rx: Receive mailbox channel
81 * @is_secure: Determines if the communication is through secure threads.
82 * @host_id: Host identifier representing the compute entity
83 * @seq: Seq id used for verification for tx and rx message.
87 const struct ti_sci_desc *desc;
88 struct ti_sci_handle handle;
89 struct mbox_chan chan_tx;
90 struct mbox_chan chan_rx;
91 struct mbox_chan chan_notify;
92 struct ti_sci_xfer xfer;
93 struct list_head list;
94 struct list_head dev_list;
100 struct ti_sci_exclusive_dev {
103 struct list_head list;
106 #define handle_to_ti_sci_info(h) container_of(h, struct ti_sci_info, handle)
109 * ti_sci_setup_one_xfer() - Setup one message type
110 * @info: Pointer to SCI entity information
111 * @msg_type: Message type
112 * @msg_flags: Flag to set for the message
113 * @buf: Buffer to be send to mailbox channel
114 * @tx_message_size: transmit message size
115 * @rx_message_size: receive message size. may be set to zero for send-only
118 * Helper function which is used by various command functions that are
119 * exposed to clients of this driver for allocating a message traffic event.
121 * Return: Corresponding ti_sci_xfer pointer if all went fine,
122 * else appropriate error pointer.
124 static struct ti_sci_xfer *ti_sci_setup_one_xfer(struct ti_sci_info *info,
125 u16 msg_type, u32 msg_flags,
127 size_t tx_message_size,
128 size_t rx_message_size)
130 struct ti_sci_xfer *xfer = &info->xfer;
131 struct ti_sci_msg_hdr *hdr;
133 /* Ensure we have sane transfer sizes */
134 if (rx_message_size > info->desc->max_msg_size ||
135 tx_message_size > info->desc->max_msg_size ||
136 (rx_message_size > 0 && rx_message_size < sizeof(*hdr)) ||
137 tx_message_size < sizeof(*hdr))
138 return ERR_PTR(-ERANGE);
140 info->seq = ~info->seq;
141 xfer->tx_message.buf = buf;
142 xfer->tx_message.len = tx_message_size;
143 xfer->rx_len = (u8)rx_message_size;
145 hdr = (struct ti_sci_msg_hdr *)buf;
146 hdr->seq = info->seq;
147 hdr->type = msg_type;
148 hdr->host = info->host_id;
149 hdr->flags = msg_flags;
155 * ti_sci_get_response() - Receive response from mailbox channel
156 * @info: Pointer to SCI entity information
157 * @xfer: Transfer to initiate and wait for response
158 * @chan: Channel to receive the response
160 * Return: -ETIMEDOUT in case of no response, if transmit error,
161 * return corresponding error, else if all goes well,
164 static inline int ti_sci_get_response(struct ti_sci_info *info,
165 struct ti_sci_xfer *xfer,
166 struct mbox_chan *chan)
168 struct k3_sec_proxy_msg *msg = &xfer->tx_message;
169 struct ti_sci_secure_msg_hdr *secure_hdr;
170 struct ti_sci_msg_hdr *hdr;
173 /* Receive the response */
174 ret = mbox_recv(chan, msg, info->desc->max_rx_timeout_ms * 1000);
176 dev_err(info->dev, "%s: Message receive failed. ret = %d\n",
181 /* ToDo: Verify checksum */
182 if (info->is_secure) {
183 secure_hdr = (struct ti_sci_secure_msg_hdr *)msg->buf;
184 msg->buf = (u32 *)((void *)msg->buf + sizeof(*secure_hdr));
187 /* msg is updated by mailbox driver */
188 hdr = (struct ti_sci_msg_hdr *)msg->buf;
190 /* Sanity check for message response */
191 if (hdr->seq != info->seq) {
192 dev_dbg(info->dev, "%s: Message for %d is not expected\n",
197 if (msg->len > info->desc->max_msg_size) {
198 dev_err(info->dev, "%s: Unable to handle %zu xfer (max %d)\n",
199 __func__, msg->len, info->desc->max_msg_size);
203 if (msg->len < xfer->rx_len) {
204 dev_err(info->dev, "%s: Recv xfer %zu < expected %d length\n",
205 __func__, msg->len, xfer->rx_len);
212 * ti_sci_do_xfer() - Do one transfer
213 * @info: Pointer to SCI entity information
214 * @xfer: Transfer to initiate and wait for response
216 * Return: 0 if all went fine, else return appropriate error.
218 static inline int ti_sci_do_xfer(struct ti_sci_info *info,
219 struct ti_sci_xfer *xfer)
221 struct k3_sec_proxy_msg *msg = &xfer->tx_message;
222 u8 secure_buf[info->desc->max_msg_size];
223 struct ti_sci_secure_msg_hdr secure_hdr;
226 if (info->is_secure) {
227 /* ToDo: get checksum of the entire message */
228 secure_hdr.checksum = 0;
229 secure_hdr.reserved = 0;
230 memcpy(&secure_buf[sizeof(secure_hdr)], xfer->tx_message.buf,
231 xfer->tx_message.len);
233 xfer->tx_message.buf = (u32 *)secure_buf;
234 xfer->tx_message.len += sizeof(secure_hdr);
237 xfer->rx_len += sizeof(secure_hdr);
240 /* Send the message */
241 ret = mbox_send(&info->chan_tx, msg);
243 dev_err(info->dev, "%s: Message sending failed. ret = %d\n",
248 /* Get response if requested */
250 ret = ti_sci_get_response(info, xfer, &info->chan_rx);
256 * ti_sci_cmd_get_revision() - command to get the revision of the SCI entity
257 * @handle: pointer to TI SCI handle
259 * Updates the SCI information in the internal data structure.
261 * Return: 0 if all went fine, else return appropriate error.
263 static int ti_sci_cmd_get_revision(struct ti_sci_handle *handle)
265 struct ti_sci_msg_resp_version *rev_info;
266 struct ti_sci_version_info *ver;
267 struct ti_sci_msg_hdr hdr;
268 struct ti_sci_info *info;
269 struct ti_sci_xfer *xfer;
273 return PTR_ERR(handle);
277 info = handle_to_ti_sci_info(handle);
279 xfer = ti_sci_setup_one_xfer(info, TI_SCI_MSG_VERSION,
280 TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
281 (u32 *)&hdr, sizeof(struct ti_sci_msg_hdr),
285 dev_err(info->dev, "Message alloc failed(%d)\n", ret);
289 ret = ti_sci_do_xfer(info, xfer);
291 dev_err(info->dev, "Mbox communication fail %d\n", ret);
295 rev_info = (struct ti_sci_msg_resp_version *)xfer->tx_message.buf;
297 ver = &handle->version;
298 ver->abi_major = rev_info->abi_major;
299 ver->abi_minor = rev_info->abi_minor;
300 ver->firmware_revision = rev_info->firmware_revision;
301 strncpy(ver->firmware_description, rev_info->firmware_description,
302 sizeof(ver->firmware_description));
308 * ti_sci_is_response_ack() - Generic ACK/NACK message checkup
309 * @r: pointer to response buffer
311 * Return: true if the response was an ACK, else returns false.
313 static inline bool ti_sci_is_response_ack(void *r)
315 struct ti_sci_msg_hdr *hdr = r;
317 return hdr->flags & TI_SCI_FLAG_RESP_GENERIC_ACK ? true : false;
321 * cmd_set_board_config_using_msg() - Common command to send board configuration
323 * @handle: pointer to TI SCI handle
324 * @msg_type: One of the TISCI message types to set board configuration
325 * @addr: Address where the board config structure is located
326 * @size: Size of the board config structure
328 * Return: 0 if all went well, else returns appropriate error value.
330 static int cmd_set_board_config_using_msg(const struct ti_sci_handle *handle,
331 u16 msg_type, u64 addr, u32 size)
333 struct ti_sci_msg_board_config req;
334 struct ti_sci_msg_hdr *resp;
335 struct ti_sci_info *info;
336 struct ti_sci_xfer *xfer;
340 return PTR_ERR(handle);
344 info = handle_to_ti_sci_info(handle);
346 xfer = ti_sci_setup_one_xfer(info, msg_type,
347 TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
348 (u32 *)&req, sizeof(req), sizeof(*resp));
351 dev_err(info->dev, "Message alloc failed(%d)\n", ret);
354 req.boardcfgp_high = (addr >> 32) & 0xffffffff;
355 req.boardcfgp_low = addr & 0xffffffff;
356 req.boardcfg_size = size;
358 ret = ti_sci_do_xfer(info, xfer);
360 dev_err(info->dev, "Mbox send fail %d\n", ret);
364 resp = (struct ti_sci_msg_hdr *)xfer->tx_message.buf;
366 if (!ti_sci_is_response_ack(resp))
373 * ti_sci_cmd_set_board_config() - Command to send board configuration message
374 * @handle: pointer to TI SCI handle
375 * @addr: Address where the board config structure is located
376 * @size: Size of the board config structure
378 * Return: 0 if all went well, else returns appropriate error value.
380 static int ti_sci_cmd_set_board_config(const struct ti_sci_handle *handle,
383 return cmd_set_board_config_using_msg(handle,
384 TI_SCI_MSG_BOARD_CONFIG,
389 * ti_sci_cmd_set_board_config_rm() - Command to send board resource
390 * management configuration
391 * @handle: pointer to TI SCI handle
392 * @addr: Address where the board RM config structure is located
393 * @size: Size of the RM config structure
395 * Return: 0 if all went well, else returns appropriate error value.
398 int ti_sci_cmd_set_board_config_rm(const struct ti_sci_handle *handle,
401 return cmd_set_board_config_using_msg(handle,
402 TI_SCI_MSG_BOARD_CONFIG_RM,
407 * ti_sci_cmd_set_board_config_security() - Command to send board security
408 * configuration message
409 * @handle: pointer to TI SCI handle
410 * @addr: Address where the board security config structure is located
411 * @size: Size of the security config structure
413 * Return: 0 if all went well, else returns appropriate error value.
416 int ti_sci_cmd_set_board_config_security(const struct ti_sci_handle *handle,
419 return cmd_set_board_config_using_msg(handle,
420 TI_SCI_MSG_BOARD_CONFIG_SECURITY,
425 * ti_sci_cmd_set_board_config_pm() - Command to send board power and clock
426 * configuration message
427 * @handle: pointer to TI SCI handle
428 * @addr: Address where the board PM config structure is located
429 * @size: Size of the PM config structure
431 * Return: 0 if all went well, else returns appropriate error value.
433 static int ti_sci_cmd_set_board_config_pm(const struct ti_sci_handle *handle,
436 return cmd_set_board_config_using_msg(handle,
437 TI_SCI_MSG_BOARD_CONFIG_PM,
441 static struct ti_sci_exclusive_dev
442 *ti_sci_get_exclusive_dev(struct list_head *dev_list, u32 id)
444 struct ti_sci_exclusive_dev *dev;
446 list_for_each_entry(dev, dev_list, list)
453 static void ti_sci_add_exclusive_dev(struct ti_sci_info *info, u32 id)
455 struct ti_sci_exclusive_dev *dev;
457 dev = ti_sci_get_exclusive_dev(&info->dev_list, id);
463 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
466 INIT_LIST_HEAD(&dev->list);
467 list_add_tail(&dev->list, &info->dev_list);
470 static void ti_sci_delete_exclusive_dev(struct ti_sci_info *info, u32 id)
472 struct ti_sci_exclusive_dev *dev;
474 dev = ti_sci_get_exclusive_dev(&info->dev_list, id);
483 * ti_sci_set_device_state() - Set device state helper
484 * @handle: pointer to TI SCI handle
485 * @id: Device identifier
486 * @flags: flags to setup for the device
487 * @state: State to move the device to
489 * Return: 0 if all went well, else returns appropriate error value.
491 static int ti_sci_set_device_state(const struct ti_sci_handle *handle,
492 u32 id, u32 flags, u8 state)
494 struct ti_sci_msg_req_set_device_state req;
495 struct ti_sci_msg_hdr *resp;
496 struct ti_sci_info *info;
497 struct ti_sci_xfer *xfer;
501 return PTR_ERR(handle);
505 info = handle_to_ti_sci_info(handle);
507 xfer = ti_sci_setup_one_xfer(info, TI_SCI_MSG_SET_DEVICE_STATE,
508 flags | TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
509 (u32 *)&req, sizeof(req), sizeof(*resp));
512 dev_err(info->dev, "Message alloc failed(%d)\n", ret);
518 ret = ti_sci_do_xfer(info, xfer);
520 dev_err(info->dev, "Mbox send fail %d\n", ret);
524 resp = (struct ti_sci_msg_hdr *)xfer->tx_message.buf;
526 if (!ti_sci_is_response_ack(resp))
529 if (state == MSG_DEVICE_SW_STATE_AUTO_OFF)
530 ti_sci_delete_exclusive_dev(info, id);
531 else if (flags & MSG_FLAG_DEVICE_EXCLUSIVE)
532 ti_sci_add_exclusive_dev(info, id);
538 * ti_sci_set_device_state_no_wait() - Set device state helper without
539 * requesting or waiting for a response.
540 * @handle: pointer to TI SCI handle
541 * @id: Device identifier
542 * @flags: flags to setup for the device
543 * @state: State to move the device to
545 * Return: 0 if all went well, else returns appropriate error value.
547 static int ti_sci_set_device_state_no_wait(const struct ti_sci_handle *handle,
548 u32 id, u32 flags, u8 state)
550 struct ti_sci_msg_req_set_device_state req;
551 struct ti_sci_info *info;
552 struct ti_sci_xfer *xfer;
556 return PTR_ERR(handle);
560 info = handle_to_ti_sci_info(handle);
562 xfer = ti_sci_setup_one_xfer(info, TI_SCI_MSG_SET_DEVICE_STATE,
563 flags | TI_SCI_FLAG_REQ_GENERIC_NORESPONSE,
564 (u32 *)&req, sizeof(req), 0);
567 dev_err(info->dev, "Message alloc failed(%d)\n", ret);
573 ret = ti_sci_do_xfer(info, xfer);
575 dev_err(info->dev, "Mbox send fail %d\n", ret);
581 * ti_sci_get_device_state() - Get device state helper
582 * @handle: Handle to the device
583 * @id: Device Identifier
584 * @clcnt: Pointer to Context Loss Count
585 * @resets: pointer to resets
586 * @p_state: pointer to p_state
587 * @c_state: pointer to c_state
589 * Return: 0 if all went fine, else return appropriate error.
591 static int ti_sci_get_device_state(const struct ti_sci_handle *handle,
592 u32 id, u32 *clcnt, u32 *resets,
593 u8 *p_state, u8 *c_state)
595 struct ti_sci_msg_resp_get_device_state *resp;
596 struct ti_sci_msg_req_get_device_state req;
597 struct ti_sci_info *info;
598 struct ti_sci_xfer *xfer;
602 return PTR_ERR(handle);
606 if (!clcnt && !resets && !p_state && !c_state)
609 info = handle_to_ti_sci_info(handle);
611 xfer = ti_sci_setup_one_xfer(info, TI_SCI_MSG_GET_DEVICE_STATE,
612 TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
613 (u32 *)&req, sizeof(req), sizeof(*resp));
616 dev_err(info->dev, "Message alloc failed(%d)\n", ret);
621 ret = ti_sci_do_xfer(info, xfer);
623 dev_err(info->dev, "Mbox send fail %d\n", ret);
627 resp = (struct ti_sci_msg_resp_get_device_state *)xfer->tx_message.buf;
628 if (!ti_sci_is_response_ack(resp))
632 *clcnt = resp->context_loss_count;
634 *resets = resp->resets;
636 *p_state = resp->programmed_state;
638 *c_state = resp->current_state;
644 * ti_sci_cmd_get_device() - command to request for device managed by TISCI
645 * @handle: Pointer to TISCI handle as retrieved by *ti_sci_get_handle
646 * @id: Device Identifier
648 * Request for the device - NOTE: the client MUST maintain integrity of
649 * usage count by balancing get_device with put_device. No refcounting is
650 * managed by driver for that purpose.
652 * NOTE: The request is for exclusive access for the processor.
654 * Return: 0 if all went fine, else return appropriate error.
656 static int ti_sci_cmd_get_device(const struct ti_sci_handle *handle, u32 id)
658 return ti_sci_set_device_state(handle, id, 0,
659 MSG_DEVICE_SW_STATE_ON);
662 static int ti_sci_cmd_get_device_exclusive(const struct ti_sci_handle *handle,
665 return ti_sci_set_device_state(handle, id, MSG_FLAG_DEVICE_EXCLUSIVE,
666 MSG_DEVICE_SW_STATE_ON);
670 * ti_sci_cmd_idle_device() - Command to idle a device managed by TISCI
671 * @handle: Pointer to TISCI handle as retrieved by *ti_sci_get_handle
672 * @id: Device Identifier
674 * Request for the device - NOTE: the client MUST maintain integrity of
675 * usage count by balancing get_device with put_device. No refcounting is
676 * managed by driver for that purpose.
678 * Return: 0 if all went fine, else return appropriate error.
680 static int ti_sci_cmd_idle_device(const struct ti_sci_handle *handle, u32 id)
682 return ti_sci_set_device_state(handle, id,
684 MSG_DEVICE_SW_STATE_RETENTION);
687 static int ti_sci_cmd_idle_device_exclusive(const struct ti_sci_handle *handle,
690 return ti_sci_set_device_state(handle, id, MSG_FLAG_DEVICE_EXCLUSIVE,
691 MSG_DEVICE_SW_STATE_RETENTION);
695 * ti_sci_cmd_put_device() - command to release a device managed by TISCI
696 * @handle: Pointer to TISCI handle as retrieved by *ti_sci_get_handle
697 * @id: Device Identifier
699 * Request for the device - NOTE: the client MUST maintain integrity of
700 * usage count by balancing get_device with put_device. No refcounting is
701 * managed by driver for that purpose.
703 * Return: 0 if all went fine, else return appropriate error.
705 static int ti_sci_cmd_put_device(const struct ti_sci_handle *handle, u32 id)
707 return ti_sci_set_device_state(handle, id, 0,
708 MSG_DEVICE_SW_STATE_AUTO_OFF);
712 int ti_sci_cmd_release_exclusive_devices(const struct ti_sci_handle *handle)
714 struct ti_sci_exclusive_dev *dev, *tmp;
715 struct ti_sci_info *info;
718 info = handle_to_ti_sci_info(handle);
720 list_for_each_entry_safe(dev, tmp, &info->dev_list, list) {
722 debug("%s: id = %d, cnt = %d\n", __func__, dev->id, cnt);
723 for (i = 0; i < cnt; i++)
724 ti_sci_cmd_put_device(handle, dev->id);
731 * ti_sci_cmd_dev_is_valid() - Is the device valid
732 * @handle: Pointer to TISCI handle as retrieved by *ti_sci_get_handle
733 * @id: Device Identifier
735 * Return: 0 if all went fine and the device ID is valid, else return
738 static int ti_sci_cmd_dev_is_valid(const struct ti_sci_handle *handle, u32 id)
742 /* check the device state which will also tell us if the ID is valid */
743 return ti_sci_get_device_state(handle, id, NULL, NULL, NULL, &unused);
747 * ti_sci_cmd_dev_get_clcnt() - Get context loss counter
748 * @handle: Pointer to TISCI handle
749 * @id: Device Identifier
750 * @count: Pointer to Context Loss counter to populate
752 * Return: 0 if all went fine, else return appropriate error.
754 static int ti_sci_cmd_dev_get_clcnt(const struct ti_sci_handle *handle, u32 id,
757 return ti_sci_get_device_state(handle, id, count, NULL, NULL, NULL);
761 * ti_sci_cmd_dev_is_idle() - Check if the device is requested to be idle
762 * @handle: Pointer to TISCI handle
763 * @id: Device Identifier
764 * @r_state: true if requested to be idle
766 * Return: 0 if all went fine, else return appropriate error.
768 static int ti_sci_cmd_dev_is_idle(const struct ti_sci_handle *handle, u32 id,
777 ret = ti_sci_get_device_state(handle, id, NULL, NULL, &state, NULL);
781 *r_state = (state == MSG_DEVICE_SW_STATE_RETENTION);
787 * ti_sci_cmd_dev_is_stop() - Check if the device is requested to be stopped
788 * @handle: Pointer to TISCI handle
789 * @id: Device Identifier
790 * @r_state: true if requested to be stopped
791 * @curr_state: true if currently stopped.
793 * Return: 0 if all went fine, else return appropriate error.
795 static int ti_sci_cmd_dev_is_stop(const struct ti_sci_handle *handle, u32 id,
796 bool *r_state, bool *curr_state)
801 if (!r_state && !curr_state)
805 ti_sci_get_device_state(handle, id, NULL, NULL, &p_state, &c_state);
810 *r_state = (p_state == MSG_DEVICE_SW_STATE_AUTO_OFF);
812 *curr_state = (c_state == MSG_DEVICE_HW_STATE_OFF);
818 * ti_sci_cmd_dev_is_on() - Check if the device is requested to be ON
819 * @handle: Pointer to TISCI handle
820 * @id: Device Identifier
821 * @r_state: true if requested to be ON
822 * @curr_state: true if currently ON and active
824 * Return: 0 if all went fine, else return appropriate error.
826 static int ti_sci_cmd_dev_is_on(const struct ti_sci_handle *handle, u32 id,
827 bool *r_state, bool *curr_state)
832 if (!r_state && !curr_state)
836 ti_sci_get_device_state(handle, id, NULL, NULL, &p_state, &c_state);
841 *r_state = (p_state == MSG_DEVICE_SW_STATE_ON);
843 *curr_state = (c_state == MSG_DEVICE_HW_STATE_ON);
849 * ti_sci_cmd_dev_is_trans() - Check if the device is currently transitioning
850 * @handle: Pointer to TISCI handle
851 * @id: Device Identifier
852 * @curr_state: true if currently transitioning.
854 * Return: 0 if all went fine, else return appropriate error.
856 static int ti_sci_cmd_dev_is_trans(const struct ti_sci_handle *handle, u32 id,
865 ret = ti_sci_get_device_state(handle, id, NULL, NULL, NULL, &state);
869 *curr_state = (state == MSG_DEVICE_HW_STATE_TRANS);
875 * ti_sci_cmd_set_device_resets() - command to set resets for device managed
877 * @handle: Pointer to TISCI handle as retrieved by *ti_sci_get_handle
878 * @id: Device Identifier
879 * @reset_state: Device specific reset bit field
881 * Return: 0 if all went fine, else return appropriate error.
883 static int ti_sci_cmd_set_device_resets(const struct ti_sci_handle *handle,
884 u32 id, u32 reset_state)
886 struct ti_sci_msg_req_set_device_resets req;
887 struct ti_sci_msg_hdr *resp;
888 struct ti_sci_info *info;
889 struct ti_sci_xfer *xfer;
893 return PTR_ERR(handle);
897 info = handle_to_ti_sci_info(handle);
899 xfer = ti_sci_setup_one_xfer(info, TI_SCI_MSG_SET_DEVICE_RESETS,
900 TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
901 (u32 *)&req, sizeof(req), sizeof(*resp));
904 dev_err(info->dev, "Message alloc failed(%d)\n", ret);
908 req.resets = reset_state;
910 ret = ti_sci_do_xfer(info, xfer);
912 dev_err(info->dev, "Mbox send fail %d\n", ret);
916 resp = (struct ti_sci_msg_hdr *)xfer->tx_message.buf;
918 if (!ti_sci_is_response_ack(resp))
925 * ti_sci_cmd_get_device_resets() - Get reset state for device managed
927 * @handle: Pointer to TISCI handle
928 * @id: Device Identifier
929 * @reset_state: Pointer to reset state to populate
931 * Return: 0 if all went fine, else return appropriate error.
933 static int ti_sci_cmd_get_device_resets(const struct ti_sci_handle *handle,
934 u32 id, u32 *reset_state)
936 return ti_sci_get_device_state(handle, id, NULL, reset_state, NULL,
941 * ti_sci_set_clock_state() - Set clock state helper
942 * @handle: pointer to TI SCI handle
943 * @dev_id: Device identifier this request is for
944 * @clk_id: Clock identifier for the device for this request.
945 * Each device has it's own set of clock inputs. This indexes
946 * which clock input to modify.
947 * @flags: Header flags as needed
948 * @state: State to request for the clock.
950 * Return: 0 if all went well, else returns appropriate error value.
952 static int ti_sci_set_clock_state(const struct ti_sci_handle *handle,
953 u32 dev_id, u8 clk_id,
956 struct ti_sci_msg_req_set_clock_state req;
957 struct ti_sci_msg_hdr *resp;
958 struct ti_sci_info *info;
959 struct ti_sci_xfer *xfer;
963 return PTR_ERR(handle);
967 info = handle_to_ti_sci_info(handle);
969 xfer = ti_sci_setup_one_xfer(info, TI_SCI_MSG_SET_CLOCK_STATE,
970 flags | TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
971 (u32 *)&req, sizeof(req), sizeof(*resp));
974 dev_err(info->dev, "Message alloc failed(%d)\n", ret);
979 req.request_state = state;
981 ret = ti_sci_do_xfer(info, xfer);
983 dev_err(info->dev, "Mbox send fail %d\n", ret);
987 resp = (struct ti_sci_msg_hdr *)xfer->tx_message.buf;
989 if (!ti_sci_is_response_ack(resp))
996 * ti_sci_cmd_get_clock_state() - Get clock state helper
997 * @handle: pointer to TI SCI handle
998 * @dev_id: Device identifier this request is for
999 * @clk_id: Clock identifier for the device for this request.
1000 * Each device has it's own set of clock inputs. This indexes
1001 * which clock input to modify.
1002 * @programmed_state: State requested for clock to move to
1003 * @current_state: State that the clock is currently in
1005 * Return: 0 if all went well, else returns appropriate error value.
1007 static int ti_sci_cmd_get_clock_state(const struct ti_sci_handle *handle,
1008 u32 dev_id, u8 clk_id,
1009 u8 *programmed_state, u8 *current_state)
1011 struct ti_sci_msg_resp_get_clock_state *resp;
1012 struct ti_sci_msg_req_get_clock_state req;
1013 struct ti_sci_info *info;
1014 struct ti_sci_xfer *xfer;
1018 return PTR_ERR(handle);
1022 if (!programmed_state && !current_state)
1025 info = handle_to_ti_sci_info(handle);
1027 xfer = ti_sci_setup_one_xfer(info, TI_SCI_MSG_GET_CLOCK_STATE,
1028 TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
1029 (u32 *)&req, sizeof(req), sizeof(*resp));
1031 ret = PTR_ERR(xfer);
1032 dev_err(info->dev, "Message alloc failed(%d)\n", ret);
1035 req.dev_id = dev_id;
1036 req.clk_id = clk_id;
1038 ret = ti_sci_do_xfer(info, xfer);
1040 dev_err(info->dev, "Mbox send fail %d\n", ret);
1044 resp = (struct ti_sci_msg_resp_get_clock_state *)xfer->tx_message.buf;
1046 if (!ti_sci_is_response_ack(resp))
1049 if (programmed_state)
1050 *programmed_state = resp->programmed_state;
1052 *current_state = resp->current_state;
1058 * ti_sci_cmd_get_clock() - Get control of a clock from TI SCI
1059 * @handle: pointer to TI SCI handle
1060 * @dev_id: Device identifier this request is for
1061 * @clk_id: Clock identifier for the device for this request.
1062 * Each device has it's own set of clock inputs. This indexes
1063 * which clock input to modify.
1064 * @needs_ssc: 'true' if Spread Spectrum clock is desired, else 'false'
1065 * @can_change_freq: 'true' if frequency change is desired, else 'false'
1066 * @enable_input_term: 'true' if input termination is desired, else 'false'
1068 * Return: 0 if all went well, else returns appropriate error value.
1070 static int ti_sci_cmd_get_clock(const struct ti_sci_handle *handle, u32 dev_id,
1071 u8 clk_id, bool needs_ssc, bool can_change_freq,
1072 bool enable_input_term)
1076 flags |= needs_ssc ? MSG_FLAG_CLOCK_ALLOW_SSC : 0;
1077 flags |= can_change_freq ? MSG_FLAG_CLOCK_ALLOW_FREQ_CHANGE : 0;
1078 flags |= enable_input_term ? MSG_FLAG_CLOCK_INPUT_TERM : 0;
1080 return ti_sci_set_clock_state(handle, dev_id, clk_id, flags,
1081 MSG_CLOCK_SW_STATE_REQ);
1085 * ti_sci_cmd_idle_clock() - Idle a clock which is in our control
1086 * @handle: pointer to TI SCI handle
1087 * @dev_id: Device identifier this request is for
1088 * @clk_id: Clock identifier for the device for this request.
1089 * Each device has it's own set of clock inputs. This indexes
1090 * which clock input to modify.
1092 * NOTE: This clock must have been requested by get_clock previously.
1094 * Return: 0 if all went well, else returns appropriate error value.
1096 static int ti_sci_cmd_idle_clock(const struct ti_sci_handle *handle,
1097 u32 dev_id, u8 clk_id)
1099 return ti_sci_set_clock_state(handle, dev_id, clk_id, 0,
1100 MSG_CLOCK_SW_STATE_UNREQ);
1104 * ti_sci_cmd_put_clock() - Release a clock from our control back to TISCI
1105 * @handle: pointer to TI SCI handle
1106 * @dev_id: Device identifier this request is for
1107 * @clk_id: Clock identifier for the device for this request.
1108 * Each device has it's own set of clock inputs. This indexes
1109 * which clock input to modify.
1111 * NOTE: This clock must have been requested by get_clock previously.
1113 * Return: 0 if all went well, else returns appropriate error value.
1115 static int ti_sci_cmd_put_clock(const struct ti_sci_handle *handle,
1116 u32 dev_id, u8 clk_id)
1118 return ti_sci_set_clock_state(handle, dev_id, clk_id, 0,
1119 MSG_CLOCK_SW_STATE_AUTO);
1123 * ti_sci_cmd_clk_is_auto() - Is the clock being auto managed
1124 * @handle: pointer to TI SCI handle
1125 * @dev_id: Device identifier this request is for
1126 * @clk_id: Clock identifier for the device for this request.
1127 * Each device has it's own set of clock inputs. This indexes
1128 * which clock input to modify.
1129 * @req_state: state indicating if the clock is auto managed
1131 * Return: 0 if all went well, else returns appropriate error value.
1133 static int ti_sci_cmd_clk_is_auto(const struct ti_sci_handle *handle,
1134 u32 dev_id, u8 clk_id, bool *req_state)
1142 ret = ti_sci_cmd_get_clock_state(handle, dev_id, clk_id, &state, NULL);
1146 *req_state = (state == MSG_CLOCK_SW_STATE_AUTO);
1151 * ti_sci_cmd_clk_is_on() - Is the clock ON
1152 * @handle: pointer to TI SCI handle
1153 * @dev_id: Device identifier this request is for
1154 * @clk_id: Clock identifier for the device for this request.
1155 * Each device has it's own set of clock inputs. This indexes
1156 * which clock input to modify.
1157 * @req_state: state indicating if the clock is managed by us and enabled
1158 * @curr_state: state indicating if the clock is ready for operation
1160 * Return: 0 if all went well, else returns appropriate error value.
1162 static int ti_sci_cmd_clk_is_on(const struct ti_sci_handle *handle, u32 dev_id,
1163 u8 clk_id, bool *req_state, bool *curr_state)
1165 u8 c_state = 0, r_state = 0;
1168 if (!req_state && !curr_state)
1171 ret = ti_sci_cmd_get_clock_state(handle, dev_id, clk_id,
1172 &r_state, &c_state);
1177 *req_state = (r_state == MSG_CLOCK_SW_STATE_REQ);
1179 *curr_state = (c_state == MSG_CLOCK_HW_STATE_READY);
1184 * ti_sci_cmd_clk_is_off() - Is the clock OFF
1185 * @handle: pointer to TI SCI handle
1186 * @dev_id: Device identifier this request is for
1187 * @clk_id: Clock identifier for the device for this request.
1188 * Each device has it's own set of clock inputs. This indexes
1189 * which clock input to modify.
1190 * @req_state: state indicating if the clock is managed by us and disabled
1191 * @curr_state: state indicating if the clock is NOT ready for operation
1193 * Return: 0 if all went well, else returns appropriate error value.
1195 static int ti_sci_cmd_clk_is_off(const struct ti_sci_handle *handle, u32 dev_id,
1196 u8 clk_id, bool *req_state, bool *curr_state)
1198 u8 c_state = 0, r_state = 0;
1201 if (!req_state && !curr_state)
1204 ret = ti_sci_cmd_get_clock_state(handle, dev_id, clk_id,
1205 &r_state, &c_state);
1210 *req_state = (r_state == MSG_CLOCK_SW_STATE_UNREQ);
1212 *curr_state = (c_state == MSG_CLOCK_HW_STATE_NOT_READY);
1217 * ti_sci_cmd_clk_set_parent() - Set the clock source of a specific device clock
1218 * @handle: pointer to TI SCI handle
1219 * @dev_id: Device identifier this request is for
1220 * @clk_id: Clock identifier for the device for this request.
1221 * Each device has it's own set of clock inputs. This indexes
1222 * which clock input to modify.
1223 * @parent_id: Parent clock identifier to set
1225 * Return: 0 if all went well, else returns appropriate error value.
1227 static int ti_sci_cmd_clk_set_parent(const struct ti_sci_handle *handle,
1228 u32 dev_id, u8 clk_id, u8 parent_id)
1230 struct ti_sci_msg_req_set_clock_parent req;
1231 struct ti_sci_msg_hdr *resp;
1232 struct ti_sci_info *info;
1233 struct ti_sci_xfer *xfer;
1237 return PTR_ERR(handle);
1241 info = handle_to_ti_sci_info(handle);
1243 xfer = ti_sci_setup_one_xfer(info, TI_SCI_MSG_SET_CLOCK_PARENT,
1244 TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
1245 (u32 *)&req, sizeof(req), sizeof(*resp));
1247 ret = PTR_ERR(xfer);
1248 dev_err(info->dev, "Message alloc failed(%d)\n", ret);
1251 req.dev_id = dev_id;
1252 req.clk_id = clk_id;
1253 req.parent_id = parent_id;
1255 ret = ti_sci_do_xfer(info, xfer);
1257 dev_err(info->dev, "Mbox send fail %d\n", ret);
1261 resp = (struct ti_sci_msg_hdr *)xfer->tx_message.buf;
1263 if (!ti_sci_is_response_ack(resp))
1270 * ti_sci_cmd_clk_get_parent() - Get current parent clock source
1271 * @handle: pointer to TI SCI handle
1272 * @dev_id: Device identifier this request is for
1273 * @clk_id: Clock identifier for the device for this request.
1274 * Each device has it's own set of clock inputs. This indexes
1275 * which clock input to modify.
1276 * @parent_id: Current clock parent
1278 * Return: 0 if all went well, else returns appropriate error value.
1280 static int ti_sci_cmd_clk_get_parent(const struct ti_sci_handle *handle,
1281 u32 dev_id, u8 clk_id, u8 *parent_id)
1283 struct ti_sci_msg_resp_get_clock_parent *resp;
1284 struct ti_sci_msg_req_get_clock_parent req;
1285 struct ti_sci_info *info;
1286 struct ti_sci_xfer *xfer;
1290 return PTR_ERR(handle);
1291 if (!handle || !parent_id)
1294 info = handle_to_ti_sci_info(handle);
1296 xfer = ti_sci_setup_one_xfer(info, TI_SCI_MSG_GET_CLOCK_PARENT,
1297 TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
1298 (u32 *)&req, sizeof(req), sizeof(*resp));
1300 ret = PTR_ERR(xfer);
1301 dev_err(info->dev, "Message alloc failed(%d)\n", ret);
1304 req.dev_id = dev_id;
1305 req.clk_id = clk_id;
1307 ret = ti_sci_do_xfer(info, xfer);
1309 dev_err(info->dev, "Mbox send fail %d\n", ret);
1313 resp = (struct ti_sci_msg_resp_get_clock_parent *)xfer->tx_message.buf;
1315 if (!ti_sci_is_response_ack(resp))
1318 *parent_id = resp->parent_id;
1324 * ti_sci_cmd_clk_get_num_parents() - Get num parents of the current clk source
1325 * @handle: pointer to TI SCI handle
1326 * @dev_id: Device identifier this request is for
1327 * @clk_id: Clock identifier for the device for this request.
1328 * Each device has it's own set of clock inputs. This indexes
1329 * which clock input to modify.
1330 * @num_parents: Returns he number of parents to the current clock.
1332 * Return: 0 if all went well, else returns appropriate error value.
1334 static int ti_sci_cmd_clk_get_num_parents(const struct ti_sci_handle *handle,
1335 u32 dev_id, u8 clk_id,
1338 struct ti_sci_msg_resp_get_clock_num_parents *resp;
1339 struct ti_sci_msg_req_get_clock_num_parents req;
1340 struct ti_sci_info *info;
1341 struct ti_sci_xfer *xfer;
1345 return PTR_ERR(handle);
1346 if (!handle || !num_parents)
1349 info = handle_to_ti_sci_info(handle);
1351 xfer = ti_sci_setup_one_xfer(info, TI_SCI_MSG_GET_NUM_CLOCK_PARENTS,
1352 TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
1353 (u32 *)&req, sizeof(req), sizeof(*resp));
1355 ret = PTR_ERR(xfer);
1356 dev_err(info->dev, "Message alloc failed(%d)\n", ret);
1359 req.dev_id = dev_id;
1360 req.clk_id = clk_id;
1362 ret = ti_sci_do_xfer(info, xfer);
1364 dev_err(info->dev, "Mbox send fail %d\n", ret);
1368 resp = (struct ti_sci_msg_resp_get_clock_num_parents *)
1369 xfer->tx_message.buf;
1371 if (!ti_sci_is_response_ack(resp))
1374 *num_parents = resp->num_parents;
1380 * ti_sci_cmd_clk_get_match_freq() - Find a good match for frequency
1381 * @handle: pointer to TI SCI handle
1382 * @dev_id: Device identifier this request is for
1383 * @clk_id: Clock identifier for the device for this request.
1384 * Each device has it's own set of clock inputs. This indexes
1385 * which clock input to modify.
1386 * @min_freq: The minimum allowable frequency in Hz. This is the minimum
1387 * allowable programmed frequency and does not account for clock
1388 * tolerances and jitter.
1389 * @target_freq: The target clock frequency in Hz. A frequency will be
1390 * processed as close to this target frequency as possible.
1391 * @max_freq: The maximum allowable frequency in Hz. This is the maximum
1392 * allowable programmed frequency and does not account for clock
1393 * tolerances and jitter.
1394 * @match_freq: Frequency match in Hz response.
1396 * Return: 0 if all went well, else returns appropriate error value.
1398 static int ti_sci_cmd_clk_get_match_freq(const struct ti_sci_handle *handle,
1399 u32 dev_id, u8 clk_id, u64 min_freq,
1400 u64 target_freq, u64 max_freq,
1403 struct ti_sci_msg_resp_query_clock_freq *resp;
1404 struct ti_sci_msg_req_query_clock_freq req;
1405 struct ti_sci_info *info;
1406 struct ti_sci_xfer *xfer;
1410 return PTR_ERR(handle);
1411 if (!handle || !match_freq)
1414 info = handle_to_ti_sci_info(handle);
1416 xfer = ti_sci_setup_one_xfer(info, TI_SCI_MSG_QUERY_CLOCK_FREQ,
1417 TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
1418 (u32 *)&req, sizeof(req), sizeof(*resp));
1420 ret = PTR_ERR(xfer);
1421 dev_err(info->dev, "Message alloc failed(%d)\n", ret);
1424 req.dev_id = dev_id;
1425 req.clk_id = clk_id;
1426 req.min_freq_hz = min_freq;
1427 req.target_freq_hz = target_freq;
1428 req.max_freq_hz = max_freq;
1430 ret = ti_sci_do_xfer(info, xfer);
1432 dev_err(info->dev, "Mbox send fail %d\n", ret);
1436 resp = (struct ti_sci_msg_resp_query_clock_freq *)xfer->tx_message.buf;
1438 if (!ti_sci_is_response_ack(resp))
1441 *match_freq = resp->freq_hz;
1447 * ti_sci_cmd_clk_set_freq() - Set a frequency for clock
1448 * @handle: pointer to TI SCI handle
1449 * @dev_id: Device identifier this request is for
1450 * @clk_id: Clock identifier for the device for this request.
1451 * Each device has it's own set of clock inputs. This indexes
1452 * which clock input to modify.
1453 * @min_freq: The minimum allowable frequency in Hz. This is the minimum
1454 * allowable programmed frequency and does not account for clock
1455 * tolerances and jitter.
1456 * @target_freq: The target clock frequency in Hz. A frequency will be
1457 * processed as close to this target frequency as possible.
1458 * @max_freq: The maximum allowable frequency in Hz. This is the maximum
1459 * allowable programmed frequency and does not account for clock
1460 * tolerances and jitter.
1462 * Return: 0 if all went well, else returns appropriate error value.
1464 static int ti_sci_cmd_clk_set_freq(const struct ti_sci_handle *handle,
1465 u32 dev_id, u8 clk_id, u64 min_freq,
1466 u64 target_freq, u64 max_freq)
1468 struct ti_sci_msg_req_set_clock_freq req;
1469 struct ti_sci_msg_hdr *resp;
1470 struct ti_sci_info *info;
1471 struct ti_sci_xfer *xfer;
1475 return PTR_ERR(handle);
1479 info = handle_to_ti_sci_info(handle);
1481 xfer = ti_sci_setup_one_xfer(info, TI_SCI_MSG_SET_CLOCK_FREQ,
1482 TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
1483 (u32 *)&req, sizeof(req), sizeof(*resp));
1485 ret = PTR_ERR(xfer);
1486 dev_err(info->dev, "Message alloc failed(%d)\n", ret);
1489 req.dev_id = dev_id;
1490 req.clk_id = clk_id;
1491 req.min_freq_hz = min_freq;
1492 req.target_freq_hz = target_freq;
1493 req.max_freq_hz = max_freq;
1495 ret = ti_sci_do_xfer(info, xfer);
1497 dev_err(info->dev, "Mbox send fail %d\n", ret);
1501 resp = (struct ti_sci_msg_hdr *)xfer->tx_message.buf;
1503 if (!ti_sci_is_response_ack(resp))
1510 * ti_sci_cmd_clk_get_freq() - Get current frequency
1511 * @handle: pointer to TI SCI handle
1512 * @dev_id: Device identifier this request is for
1513 * @clk_id: Clock identifier for the device for this request.
1514 * Each device has it's own set of clock inputs. This indexes
1515 * which clock input to modify.
1516 * @freq: Currently frequency in Hz
1518 * Return: 0 if all went well, else returns appropriate error value.
1520 static int ti_sci_cmd_clk_get_freq(const struct ti_sci_handle *handle,
1521 u32 dev_id, u8 clk_id, u64 *freq)
1523 struct ti_sci_msg_resp_get_clock_freq *resp;
1524 struct ti_sci_msg_req_get_clock_freq req;
1525 struct ti_sci_info *info;
1526 struct ti_sci_xfer *xfer;
1530 return PTR_ERR(handle);
1531 if (!handle || !freq)
1534 info = handle_to_ti_sci_info(handle);
1536 xfer = ti_sci_setup_one_xfer(info, TI_SCI_MSG_GET_CLOCK_FREQ,
1537 TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
1538 (u32 *)&req, sizeof(req), sizeof(*resp));
1540 ret = PTR_ERR(xfer);
1541 dev_err(info->dev, "Message alloc failed(%d)\n", ret);
1544 req.dev_id = dev_id;
1545 req.clk_id = clk_id;
1547 ret = ti_sci_do_xfer(info, xfer);
1549 dev_err(info->dev, "Mbox send fail %d\n", ret);
1553 resp = (struct ti_sci_msg_resp_get_clock_freq *)xfer->tx_message.buf;
1555 if (!ti_sci_is_response_ack(resp))
1558 *freq = resp->freq_hz;
1564 * ti_sci_cmd_core_reboot() - Command to request system reset
1565 * @handle: pointer to TI SCI handle
1567 * Return: 0 if all went well, else returns appropriate error value.
1569 static int ti_sci_cmd_core_reboot(const struct ti_sci_handle *handle)
1571 struct ti_sci_msg_req_reboot req;
1572 struct ti_sci_msg_hdr *resp;
1573 struct ti_sci_info *info;
1574 struct ti_sci_xfer *xfer;
1578 return PTR_ERR(handle);
1582 info = handle_to_ti_sci_info(handle);
1584 xfer = ti_sci_setup_one_xfer(info, TI_SCI_MSG_SYS_RESET,
1585 TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
1586 (u32 *)&req, sizeof(req), sizeof(*resp));
1588 ret = PTR_ERR(xfer);
1589 dev_err(info->dev, "Message alloc failed(%d)\n", ret);
1594 ret = ti_sci_do_xfer(info, xfer);
1596 dev_err(info->dev, "Mbox send fail %d\n", ret);
1600 resp = (struct ti_sci_msg_hdr *)xfer->tx_message.buf;
1602 if (!ti_sci_is_response_ack(resp))
1609 * ti_sci_get_resource_range - Helper to get a range of resources assigned
1610 * to a host. Resource is uniquely identified by
1612 * @handle: Pointer to TISCI handle.
1613 * @dev_id: TISCI device ID.
1614 * @subtype: Resource assignment subtype that is being requested
1615 * from the given device.
1616 * @s_host: Host processor ID to which the resources are allocated
1617 * @range_start: Start index of the resource range
1618 * @range_num: Number of resources in the range
1620 * Return: 0 if all went fine, else return appropriate error.
1622 static int ti_sci_get_resource_range(const struct ti_sci_handle *handle,
1623 u32 dev_id, u8 subtype, u8 s_host,
1624 u16 *range_start, u16 *range_num)
1626 struct ti_sci_msg_resp_get_resource_range *resp;
1627 struct ti_sci_msg_req_get_resource_range req;
1628 struct ti_sci_xfer *xfer;
1629 struct ti_sci_info *info;
1633 return PTR_ERR(handle);
1637 info = handle_to_ti_sci_info(handle);
1639 xfer = ti_sci_setup_one_xfer(info, TI_SCI_MSG_GET_RESOURCE_RANGE,
1640 TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
1641 (u32 *)&req, sizeof(req), sizeof(*resp));
1643 ret = PTR_ERR(xfer);
1644 dev_err(info->dev, "Message alloc failed(%d)\n", ret);
1648 req.secondary_host = s_host;
1649 req.type = dev_id & MSG_RM_RESOURCE_TYPE_MASK;
1650 req.subtype = subtype & MSG_RM_RESOURCE_SUBTYPE_MASK;
1652 ret = ti_sci_do_xfer(info, xfer);
1654 dev_err(info->dev, "Mbox send fail %d\n", ret);
1658 resp = (struct ti_sci_msg_resp_get_resource_range *)xfer->tx_message.buf;
1659 if (!ti_sci_is_response_ack(resp)) {
1661 } else if (!resp->range_start && !resp->range_num) {
1664 *range_start = resp->range_start;
1665 *range_num = resp->range_num;
1672 static int __maybe_unused
1673 ti_sci_cmd_get_resource_range_static(const struct ti_sci_handle *handle,
1674 u32 dev_id, u8 subtype,
1675 u16 *range_start, u16 *range_num)
1677 struct ti_sci_resource_static_data *data;
1681 data = &rm_static_data[i];
1686 if (data->dev_id != dev_id || data->subtype != subtype) {
1691 *range_start = data->range_start;
1692 *range_num = data->range_num;
1701 * ti_sci_cmd_get_resource_range - Get a range of resources assigned to host
1702 * that is same as ti sci interface host.
1703 * @handle: Pointer to TISCI handle.
1704 * @dev_id: TISCI device ID.
1705 * @subtype: Resource assignment subtype that is being requested
1706 * from the given device.
1707 * @range_start: Start index of the resource range
1708 * @range_num: Number of resources in the range
1710 * Return: 0 if all went fine, else return appropriate error.
1712 static int ti_sci_cmd_get_resource_range(const struct ti_sci_handle *handle,
1713 u32 dev_id, u8 subtype,
1714 u16 *range_start, u16 *range_num)
1716 return ti_sci_get_resource_range(handle, dev_id, subtype,
1717 TI_SCI_IRQ_SECONDARY_HOST_INVALID,
1718 range_start, range_num);
1722 * ti_sci_cmd_get_resource_range_from_shost - Get a range of resources
1723 * assigned to a specified host.
1724 * @handle: Pointer to TISCI handle.
1725 * @dev_id: TISCI device ID.
1726 * @subtype: Resource assignment subtype that is being requested
1727 * from the given device.
1728 * @s_host: Host processor ID to which the resources are allocated
1729 * @range_start: Start index of the resource range
1730 * @range_num: Number of resources in the range
1732 * Return: 0 if all went fine, else return appropriate error.
1735 int ti_sci_cmd_get_resource_range_from_shost(const struct ti_sci_handle *handle,
1736 u32 dev_id, u8 subtype, u8 s_host,
1737 u16 *range_start, u16 *range_num)
1739 return ti_sci_get_resource_range(handle, dev_id, subtype, s_host,
1740 range_start, range_num);
1744 * ti_sci_cmd_query_msmc() - Command to query currently available msmc memory
1745 * @handle: pointer to TI SCI handle
1746 * @msms_start: MSMC start as returned by tisci
1747 * @msmc_end: MSMC end as returned by tisci
1749 * Return: 0 if all went well, else returns appropriate error value.
1751 static int ti_sci_cmd_query_msmc(const struct ti_sci_handle *handle,
1752 u64 *msmc_start, u64 *msmc_end)
1754 struct ti_sci_msg_resp_query_msmc *resp;
1755 struct ti_sci_msg_hdr req;
1756 struct ti_sci_info *info;
1757 struct ti_sci_xfer *xfer;
1761 return PTR_ERR(handle);
1765 info = handle_to_ti_sci_info(handle);
1767 xfer = ti_sci_setup_one_xfer(info, TISCI_MSG_QUERY_MSMC,
1768 TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
1769 (u32 *)&req, sizeof(req), sizeof(*resp));
1771 ret = PTR_ERR(xfer);
1772 dev_err(info->dev, "Message alloc failed(%d)\n", ret);
1776 ret = ti_sci_do_xfer(info, xfer);
1778 dev_err(info->dev, "Mbox send fail %d\n", ret);
1782 resp = (struct ti_sci_msg_resp_query_msmc *)xfer->tx_message.buf;
1784 if (!ti_sci_is_response_ack(resp))
1787 *msmc_start = ((u64)resp->msmc_start_high << TISCI_ADDR_HIGH_SHIFT) |
1788 resp->msmc_start_low;
1789 *msmc_end = ((u64)resp->msmc_end_high << TISCI_ADDR_HIGH_SHIFT) |
1796 * ti_sci_cmd_proc_request() - Command to request a physical processor control
1797 * @handle: Pointer to TI SCI handle
1798 * @proc_id: Processor ID this request is for
1800 * Return: 0 if all went well, else returns appropriate error value.
1802 static int ti_sci_cmd_proc_request(const struct ti_sci_handle *handle,
1805 struct ti_sci_msg_req_proc_request req;
1806 struct ti_sci_msg_hdr *resp;
1807 struct ti_sci_info *info;
1808 struct ti_sci_xfer *xfer;
1812 return PTR_ERR(handle);
1816 info = handle_to_ti_sci_info(handle);
1818 xfer = ti_sci_setup_one_xfer(info, TISCI_MSG_PROC_REQUEST,
1819 TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
1820 (u32 *)&req, sizeof(req), sizeof(*resp));
1822 ret = PTR_ERR(xfer);
1823 dev_err(info->dev, "Message alloc failed(%d)\n", ret);
1826 req.processor_id = proc_id;
1828 ret = ti_sci_do_xfer(info, xfer);
1830 dev_err(info->dev, "Mbox send fail %d\n", ret);
1834 resp = (struct ti_sci_msg_hdr *)xfer->tx_message.buf;
1836 if (!ti_sci_is_response_ack(resp))
1843 * ti_sci_cmd_proc_release() - Command to release a physical processor control
1844 * @handle: Pointer to TI SCI handle
1845 * @proc_id: Processor ID this request is for
1847 * Return: 0 if all went well, else returns appropriate error value.
1849 static int ti_sci_cmd_proc_release(const struct ti_sci_handle *handle,
1852 struct ti_sci_msg_req_proc_release req;
1853 struct ti_sci_msg_hdr *resp;
1854 struct ti_sci_info *info;
1855 struct ti_sci_xfer *xfer;
1859 return PTR_ERR(handle);
1863 info = handle_to_ti_sci_info(handle);
1865 xfer = ti_sci_setup_one_xfer(info, TISCI_MSG_PROC_RELEASE,
1866 TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
1867 (u32 *)&req, sizeof(req), sizeof(*resp));
1869 ret = PTR_ERR(xfer);
1870 dev_err(info->dev, "Message alloc failed(%d)\n", ret);
1873 req.processor_id = proc_id;
1875 ret = ti_sci_do_xfer(info, xfer);
1877 dev_err(info->dev, "Mbox send fail %d\n", ret);
1881 resp = (struct ti_sci_msg_hdr *)xfer->tx_message.buf;
1883 if (!ti_sci_is_response_ack(resp))
1890 * ti_sci_cmd_proc_handover() - Command to handover a physical processor
1891 * control to a host in the processor's access
1893 * @handle: Pointer to TI SCI handle
1894 * @proc_id: Processor ID this request is for
1895 * @host_id: Host ID to get the control of the processor
1897 * Return: 0 if all went well, else returns appropriate error value.
1899 static int ti_sci_cmd_proc_handover(const struct ti_sci_handle *handle,
1900 u8 proc_id, u8 host_id)
1902 struct ti_sci_msg_req_proc_handover req;
1903 struct ti_sci_msg_hdr *resp;
1904 struct ti_sci_info *info;
1905 struct ti_sci_xfer *xfer;
1909 return PTR_ERR(handle);
1913 info = handle_to_ti_sci_info(handle);
1915 xfer = ti_sci_setup_one_xfer(info, TISCI_MSG_PROC_HANDOVER,
1916 TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
1917 (u32 *)&req, sizeof(req), sizeof(*resp));
1919 ret = PTR_ERR(xfer);
1920 dev_err(info->dev, "Message alloc failed(%d)\n", ret);
1923 req.processor_id = proc_id;
1924 req.host_id = host_id;
1926 ret = ti_sci_do_xfer(info, xfer);
1928 dev_err(info->dev, "Mbox send fail %d\n", ret);
1932 resp = (struct ti_sci_msg_hdr *)xfer->tx_message.buf;
1934 if (!ti_sci_is_response_ack(resp))
1941 * ti_sci_cmd_set_proc_boot_cfg() - Command to set the processor boot
1942 * configuration flags
1943 * @handle: Pointer to TI SCI handle
1944 * @proc_id: Processor ID this request is for
1945 * @config_flags_set: Configuration flags to be set
1946 * @config_flags_clear: Configuration flags to be cleared.
1948 * Return: 0 if all went well, else returns appropriate error value.
1950 static int ti_sci_cmd_set_proc_boot_cfg(const struct ti_sci_handle *handle,
1951 u8 proc_id, u64 bootvector,
1952 u32 config_flags_set,
1953 u32 config_flags_clear)
1955 struct ti_sci_msg_req_set_proc_boot_config req;
1956 struct ti_sci_msg_hdr *resp;
1957 struct ti_sci_info *info;
1958 struct ti_sci_xfer *xfer;
1962 return PTR_ERR(handle);
1966 info = handle_to_ti_sci_info(handle);
1968 xfer = ti_sci_setup_one_xfer(info, TISCI_MSG_SET_PROC_BOOT_CONFIG,
1969 TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
1970 (u32 *)&req, sizeof(req), sizeof(*resp));
1972 ret = PTR_ERR(xfer);
1973 dev_err(info->dev, "Message alloc failed(%d)\n", ret);
1976 req.processor_id = proc_id;
1977 req.bootvector_low = bootvector & TISCI_ADDR_LOW_MASK;
1978 req.bootvector_high = (bootvector & TISCI_ADDR_HIGH_MASK) >>
1979 TISCI_ADDR_HIGH_SHIFT;
1980 req.config_flags_set = config_flags_set;
1981 req.config_flags_clear = config_flags_clear;
1983 ret = ti_sci_do_xfer(info, xfer);
1985 dev_err(info->dev, "Mbox send fail %d\n", ret);
1989 resp = (struct ti_sci_msg_hdr *)xfer->tx_message.buf;
1991 if (!ti_sci_is_response_ack(resp))
1998 * ti_sci_cmd_set_proc_boot_ctrl() - Command to set the processor boot
2000 * @handle: Pointer to TI SCI handle
2001 * @proc_id: Processor ID this request is for
2002 * @control_flags_set: Control flags to be set
2003 * @control_flags_clear: Control flags to be cleared
2005 * Return: 0 if all went well, else returns appropriate error value.
2007 static int ti_sci_cmd_set_proc_boot_ctrl(const struct ti_sci_handle *handle,
2008 u8 proc_id, u32 control_flags_set,
2009 u32 control_flags_clear)
2011 struct ti_sci_msg_req_set_proc_boot_ctrl req;
2012 struct ti_sci_msg_hdr *resp;
2013 struct ti_sci_info *info;
2014 struct ti_sci_xfer *xfer;
2018 return PTR_ERR(handle);
2022 info = handle_to_ti_sci_info(handle);
2024 xfer = ti_sci_setup_one_xfer(info, TISCI_MSG_SET_PROC_BOOT_CTRL,
2025 TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
2026 (u32 *)&req, sizeof(req), sizeof(*resp));
2028 ret = PTR_ERR(xfer);
2029 dev_err(info->dev, "Message alloc failed(%d)\n", ret);
2032 req.processor_id = proc_id;
2033 req.control_flags_set = control_flags_set;
2034 req.control_flags_clear = control_flags_clear;
2036 ret = ti_sci_do_xfer(info, xfer);
2038 dev_err(info->dev, "Mbox send fail %d\n", ret);
2042 resp = (struct ti_sci_msg_hdr *)xfer->tx_message.buf;
2044 if (!ti_sci_is_response_ack(resp))
2051 * ti_sci_cmd_proc_auth_boot_image() - Command to authenticate and load the
2052 * image and then set the processor configuration flags.
2053 * @handle: Pointer to TI SCI handle
2054 * @image_addr: Memory address at which payload image and certificate is
2055 * located in memory, this is updated if the image data is
2056 * moved during authentication.
2057 * @image_size: This is updated with the final size of the image after
2060 * Return: 0 if all went well, else returns appropriate error value.
2062 static int ti_sci_cmd_proc_auth_boot_image(const struct ti_sci_handle *handle,
2063 u64 *image_addr, u32 *image_size)
2065 struct ti_sci_msg_req_proc_auth_boot_image req;
2066 struct ti_sci_msg_resp_proc_auth_boot_image *resp;
2067 struct ti_sci_info *info;
2068 struct ti_sci_xfer *xfer;
2072 return PTR_ERR(handle);
2076 info = handle_to_ti_sci_info(handle);
2078 xfer = ti_sci_setup_one_xfer(info, TISCI_MSG_PROC_AUTH_BOOT_IMIAGE,
2079 TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
2080 (u32 *)&req, sizeof(req), sizeof(*resp));
2082 ret = PTR_ERR(xfer);
2083 dev_err(info->dev, "Message alloc failed(%d)\n", ret);
2086 req.cert_addr_low = *image_addr & TISCI_ADDR_LOW_MASK;
2087 req.cert_addr_high = (*image_addr & TISCI_ADDR_HIGH_MASK) >>
2088 TISCI_ADDR_HIGH_SHIFT;
2090 ret = ti_sci_do_xfer(info, xfer);
2092 dev_err(info->dev, "Mbox send fail %d\n", ret);
2096 resp = (struct ti_sci_msg_resp_proc_auth_boot_image *)xfer->tx_message.buf;
2098 if (!ti_sci_is_response_ack(resp))
2101 *image_addr = (resp->image_addr_low & TISCI_ADDR_LOW_MASK) |
2102 (((u64)resp->image_addr_high <<
2103 TISCI_ADDR_HIGH_SHIFT) & TISCI_ADDR_HIGH_MASK);
2104 *image_size = resp->image_size;
2110 * ti_sci_cmd_get_proc_boot_status() - Command to get the processor boot status
2111 * @handle: Pointer to TI SCI handle
2112 * @proc_id: Processor ID this request is for
2114 * Return: 0 if all went well, else returns appropriate error value.
2116 static int ti_sci_cmd_get_proc_boot_status(const struct ti_sci_handle *handle,
2117 u8 proc_id, u64 *bv, u32 *cfg_flags,
2118 u32 *ctrl_flags, u32 *sts_flags)
2120 struct ti_sci_msg_resp_get_proc_boot_status *resp;
2121 struct ti_sci_msg_req_get_proc_boot_status req;
2122 struct ti_sci_info *info;
2123 struct ti_sci_xfer *xfer;
2127 return PTR_ERR(handle);
2131 info = handle_to_ti_sci_info(handle);
2133 xfer = ti_sci_setup_one_xfer(info, TISCI_MSG_GET_PROC_BOOT_STATUS,
2134 TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
2135 (u32 *)&req, sizeof(req), sizeof(*resp));
2137 ret = PTR_ERR(xfer);
2138 dev_err(info->dev, "Message alloc failed(%d)\n", ret);
2141 req.processor_id = proc_id;
2143 ret = ti_sci_do_xfer(info, xfer);
2145 dev_err(info->dev, "Mbox send fail %d\n", ret);
2149 resp = (struct ti_sci_msg_resp_get_proc_boot_status *)
2150 xfer->tx_message.buf;
2152 if (!ti_sci_is_response_ack(resp))
2154 *bv = (resp->bootvector_low & TISCI_ADDR_LOW_MASK) |
2155 (((u64)resp->bootvector_high <<
2156 TISCI_ADDR_HIGH_SHIFT) & TISCI_ADDR_HIGH_MASK);
2157 *cfg_flags = resp->config_flags;
2158 *ctrl_flags = resp->control_flags;
2159 *sts_flags = resp->status_flags;
2165 * ti_sci_proc_wait_boot_status_no_wait() - Helper function to wait for a
2166 * processor boot status without requesting or
2167 * waiting for a response.
2168 * @proc_id: Processor ID this request is for
2169 * @num_wait_iterations: Total number of iterations we will check before
2170 * we will timeout and give up
2171 * @num_match_iterations: How many iterations should we have continued
2172 * status to account for status bits glitching.
2173 * This is to make sure that match occurs for
2174 * consecutive checks. This implies that the
2175 * worst case should consider that the stable
2176 * time should at the worst be num_wait_iterations
2177 * num_match_iterations to prevent timeout.
2178 * @delay_per_iteration_us: Specifies how long to wait (in micro seconds)
2179 * between each status checks. This is the minimum
2180 * duration, and overhead of register reads and
2181 * checks are on top of this and can vary based on
2182 * varied conditions.
2183 * @delay_before_iterations_us: Specifies how long to wait (in micro seconds)
2184 * before the very first check in the first
2185 * iteration of status check loop. This is the
2186 * minimum duration, and overhead of register
2187 * reads and checks are.
2188 * @status_flags_1_set_all_wait:If non-zero, Specifies that all bits of the
2189 * status matching this field requested MUST be 1.
2190 * @status_flags_1_set_any_wait:If non-zero, Specifies that at least one of the
2191 * bits matching this field requested MUST be 1.
2192 * @status_flags_1_clr_all_wait:If non-zero, Specifies that all bits of the
2193 * status matching this field requested MUST be 0.
2194 * @status_flags_1_clr_any_wait:If non-zero, Specifies that at least one of the
2195 * bits matching this field requested MUST be 0.
2197 * Return: 0 if all goes well, else appropriate error message
2200 ti_sci_proc_wait_boot_status_no_wait(const struct ti_sci_handle *handle,
2202 u8 num_wait_iterations,
2203 u8 num_match_iterations,
2204 u8 delay_per_iteration_us,
2205 u8 delay_before_iterations_us,
2206 u32 status_flags_1_set_all_wait,
2207 u32 status_flags_1_set_any_wait,
2208 u32 status_flags_1_clr_all_wait,
2209 u32 status_flags_1_clr_any_wait)
2211 struct ti_sci_msg_req_wait_proc_boot_status req;
2212 struct ti_sci_info *info;
2213 struct ti_sci_xfer *xfer;
2217 return PTR_ERR(handle);
2221 info = handle_to_ti_sci_info(handle);
2223 xfer = ti_sci_setup_one_xfer(info, TISCI_MSG_WAIT_PROC_BOOT_STATUS,
2224 TI_SCI_FLAG_REQ_GENERIC_NORESPONSE,
2225 (u32 *)&req, sizeof(req), 0);
2227 ret = PTR_ERR(xfer);
2228 dev_err(info->dev, "Message alloc failed(%d)\n", ret);
2231 req.processor_id = proc_id;
2232 req.num_wait_iterations = num_wait_iterations;
2233 req.num_match_iterations = num_match_iterations;
2234 req.delay_per_iteration_us = delay_per_iteration_us;
2235 req.delay_before_iterations_us = delay_before_iterations_us;
2236 req.status_flags_1_set_all_wait = status_flags_1_set_all_wait;
2237 req.status_flags_1_set_any_wait = status_flags_1_set_any_wait;
2238 req.status_flags_1_clr_all_wait = status_flags_1_clr_all_wait;
2239 req.status_flags_1_clr_any_wait = status_flags_1_clr_any_wait;
2241 ret = ti_sci_do_xfer(info, xfer);
2243 dev_err(info->dev, "Mbox send fail %d\n", ret);
2249 * ti_sci_cmd_proc_shutdown_no_wait() - Command to shutdown a core without
2250 * requesting or waiting for a response. Note that this API call
2251 * should be followed by placing the respective processor into
2252 * either WFE or WFI mode.
2253 * @handle: Pointer to TI SCI handle
2254 * @proc_id: Processor ID this request is for
2256 * Return: 0 if all went well, else returns appropriate error value.
2258 static int ti_sci_cmd_proc_shutdown_no_wait(const struct ti_sci_handle *handle,
2262 struct ti_sci_info *info;
2265 return PTR_ERR(handle);
2269 info = handle_to_ti_sci_info(handle);
2272 * Send the core boot status wait message waiting for either WFE or
2273 * WFI without requesting or waiting for a TISCI response with the
2274 * maximum wait time to give us the best chance to get to the WFE/WFI
2275 * command that should follow the invocation of this API before the
2276 * DMSC-internal processing of this command times out. Note that
2277 * waiting for the R5 WFE/WFI flags will also work on an ARMV8 type
2278 * core as the related flag bit positions are the same.
2280 ret = ti_sci_proc_wait_boot_status_no_wait(handle, proc_id,
2281 U8_MAX, 100, U8_MAX, U8_MAX,
2282 0, PROC_BOOT_STATUS_FLAG_R5_WFE | PROC_BOOT_STATUS_FLAG_R5_WFI,
2285 dev_err(info->dev, "Sending core %u wait message fail %d\n",
2291 * Release a processor managed by TISCI without requesting or waiting
2294 ret = ti_sci_set_device_state_no_wait(handle, proc_id, 0,
2295 MSG_DEVICE_SW_STATE_AUTO_OFF);
2297 dev_err(info->dev, "Sending core %u shutdown message fail %d\n",
2304 * ti_sci_cmd_ring_config() - configure RA ring
2305 * @handle: pointer to TI SCI handle
2306 * @valid_params: Bitfield defining validity of ring configuration parameters.
2307 * @nav_id: Device ID of Navigator Subsystem from which the ring is allocated
2308 * @index: Ring index.
2309 * @addr_lo: The ring base address lo 32 bits
2310 * @addr_hi: The ring base address hi 32 bits
2311 * @count: Number of ring elements.
2312 * @mode: The mode of the ring
2313 * @size: The ring element size.
2314 * @order_id: Specifies the ring's bus order ID.
2316 * Return: 0 if all went well, else returns appropriate error value.
2318 * See @ti_sci_msg_rm_ring_cfg_req for more info.
2320 static int ti_sci_cmd_ring_config(const struct ti_sci_handle *handle,
2321 u32 valid_params, u16 nav_id, u16 index,
2322 u32 addr_lo, u32 addr_hi, u32 count,
2323 u8 mode, u8 size, u8 order_id)
2325 struct ti_sci_msg_rm_ring_cfg_resp *resp;
2326 struct ti_sci_msg_rm_ring_cfg_req req;
2327 struct ti_sci_xfer *xfer;
2328 struct ti_sci_info *info;
2332 return PTR_ERR(handle);
2336 info = handle_to_ti_sci_info(handle);
2338 xfer = ti_sci_setup_one_xfer(info, TI_SCI_MSG_RM_RING_CFG,
2339 TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
2340 (u32 *)&req, sizeof(req), sizeof(*resp));
2342 ret = PTR_ERR(xfer);
2343 dev_err(info->dev, "RM_RA:Message config failed(%d)\n", ret);
2346 req.valid_params = valid_params;
2347 req.nav_id = nav_id;
2349 req.addr_lo = addr_lo;
2350 req.addr_hi = addr_hi;
2354 req.order_id = order_id;
2356 ret = ti_sci_do_xfer(info, xfer);
2358 dev_err(info->dev, "RM_RA:Mbox config send fail %d\n", ret);
2362 resp = (struct ti_sci_msg_rm_ring_cfg_resp *)xfer->tx_message.buf;
2364 ret = ti_sci_is_response_ack(resp) ? 0 : -ENODEV;
2367 dev_dbg(info->dev, "RM_RA:config ring %u ret:%d\n", index, ret);
2371 static int ti_sci_cmd_rm_psil_pair(const struct ti_sci_handle *handle,
2372 u32 nav_id, u32 src_thread, u32 dst_thread)
2374 struct ti_sci_msg_hdr *resp;
2375 struct ti_sci_msg_psil_pair req;
2376 struct ti_sci_xfer *xfer;
2377 struct ti_sci_info *info;
2381 return PTR_ERR(handle);
2385 info = handle_to_ti_sci_info(handle);
2387 xfer = ti_sci_setup_one_xfer(info, TI_SCI_MSG_RM_PSIL_PAIR,
2388 TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
2389 (u32 *)&req, sizeof(req), sizeof(*resp));
2391 ret = PTR_ERR(xfer);
2392 dev_err(info->dev, "RM_PSIL:Message alloc failed(%d)\n", ret);
2395 req.nav_id = nav_id;
2396 req.src_thread = src_thread;
2397 req.dst_thread = dst_thread;
2399 ret = ti_sci_do_xfer(info, xfer);
2401 dev_err(info->dev, "RM_PSIL:Mbox send fail %d\n", ret);
2405 resp = (struct ti_sci_msg_hdr *)xfer->tx_message.buf;
2406 ret = ti_sci_is_response_ack(resp) ? 0 : -ENODEV;
2409 dev_dbg(info->dev, "RM_PSIL: nav: %u link pair %u->%u ret:%u\n",
2410 nav_id, src_thread, dst_thread, ret);
2414 static int ti_sci_cmd_rm_psil_unpair(const struct ti_sci_handle *handle,
2415 u32 nav_id, u32 src_thread, u32 dst_thread)
2417 struct ti_sci_msg_hdr *resp;
2418 struct ti_sci_msg_psil_unpair req;
2419 struct ti_sci_xfer *xfer;
2420 struct ti_sci_info *info;
2424 return PTR_ERR(handle);
2428 info = handle_to_ti_sci_info(handle);
2430 xfer = ti_sci_setup_one_xfer(info, TI_SCI_MSG_RM_PSIL_UNPAIR,
2431 TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
2432 (u32 *)&req, sizeof(req), sizeof(*resp));
2434 ret = PTR_ERR(xfer);
2435 dev_err(info->dev, "RM_PSIL:Message alloc failed(%d)\n", ret);
2438 req.nav_id = nav_id;
2439 req.src_thread = src_thread;
2440 req.dst_thread = dst_thread;
2442 ret = ti_sci_do_xfer(info, xfer);
2444 dev_err(info->dev, "RM_PSIL:Mbox send fail %d\n", ret);
2448 resp = (struct ti_sci_msg_hdr *)xfer->tx_message.buf;
2449 ret = ti_sci_is_response_ack(resp) ? 0 : -ENODEV;
2452 dev_dbg(info->dev, "RM_PSIL: link unpair %u->%u ret:%u\n",
2453 src_thread, dst_thread, ret);
2457 static int ti_sci_cmd_rm_udmap_tx_ch_cfg(
2458 const struct ti_sci_handle *handle,
2459 const struct ti_sci_msg_rm_udmap_tx_ch_cfg *params)
2461 struct ti_sci_msg_rm_udmap_tx_ch_cfg_resp *resp;
2462 struct ti_sci_msg_rm_udmap_tx_ch_cfg_req req;
2463 struct ti_sci_xfer *xfer;
2464 struct ti_sci_info *info;
2468 return PTR_ERR(handle);
2472 info = handle_to_ti_sci_info(handle);
2474 xfer = ti_sci_setup_one_xfer(info, TISCI_MSG_RM_UDMAP_TX_CH_CFG,
2475 TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
2476 (u32 *)&req, sizeof(req), sizeof(*resp));
2478 ret = PTR_ERR(xfer);
2479 dev_err(info->dev, "Message TX_CH_CFG alloc failed(%d)\n", ret);
2482 req.valid_params = params->valid_params;
2483 req.nav_id = params->nav_id;
2484 req.index = params->index;
2485 req.tx_pause_on_err = params->tx_pause_on_err;
2486 req.tx_filt_einfo = params->tx_filt_einfo;
2487 req.tx_filt_pswords = params->tx_filt_pswords;
2488 req.tx_atype = params->tx_atype;
2489 req.tx_chan_type = params->tx_chan_type;
2490 req.tx_supr_tdpkt = params->tx_supr_tdpkt;
2491 req.tx_fetch_size = params->tx_fetch_size;
2492 req.tx_credit_count = params->tx_credit_count;
2493 req.txcq_qnum = params->txcq_qnum;
2494 req.tx_priority = params->tx_priority;
2495 req.tx_qos = params->tx_qos;
2496 req.tx_orderid = params->tx_orderid;
2497 req.fdepth = params->fdepth;
2498 req.tx_sched_priority = params->tx_sched_priority;
2499 req.tx_burst_size = params->tx_burst_size;
2500 req.tx_tdtype = params->tx_tdtype;
2501 req.extended_ch_type = params->extended_ch_type;
2503 ret = ti_sci_do_xfer(info, xfer);
2505 dev_err(info->dev, "Mbox send TX_CH_CFG fail %d\n", ret);
2510 (struct ti_sci_msg_rm_udmap_tx_ch_cfg_resp *)xfer->tx_message.buf;
2511 ret = ti_sci_is_response_ack(resp) ? 0 : -EINVAL;
2514 dev_dbg(info->dev, "TX_CH_CFG: chn %u ret:%u\n", params->index, ret);
2518 static int ti_sci_cmd_rm_udmap_rx_ch_cfg(
2519 const struct ti_sci_handle *handle,
2520 const struct ti_sci_msg_rm_udmap_rx_ch_cfg *params)
2522 struct ti_sci_msg_rm_udmap_rx_ch_cfg_resp *resp;
2523 struct ti_sci_msg_rm_udmap_rx_ch_cfg_req req;
2524 struct ti_sci_xfer *xfer;
2525 struct ti_sci_info *info;
2529 return PTR_ERR(handle);
2533 info = handle_to_ti_sci_info(handle);
2535 xfer = ti_sci_setup_one_xfer(info, TISCI_MSG_RM_UDMAP_RX_CH_CFG,
2536 TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
2537 (u32 *)&req, sizeof(req), sizeof(*resp));
2539 ret = PTR_ERR(xfer);
2540 dev_err(info->dev, "Message RX_CH_CFG alloc failed(%d)\n", ret);
2544 req.valid_params = params->valid_params;
2545 req.nav_id = params->nav_id;
2546 req.index = params->index;
2547 req.rx_fetch_size = params->rx_fetch_size;
2548 req.rxcq_qnum = params->rxcq_qnum;
2549 req.rx_priority = params->rx_priority;
2550 req.rx_qos = params->rx_qos;
2551 req.rx_orderid = params->rx_orderid;
2552 req.rx_sched_priority = params->rx_sched_priority;
2553 req.flowid_start = params->flowid_start;
2554 req.flowid_cnt = params->flowid_cnt;
2555 req.rx_pause_on_err = params->rx_pause_on_err;
2556 req.rx_atype = params->rx_atype;
2557 req.rx_chan_type = params->rx_chan_type;
2558 req.rx_ignore_short = params->rx_ignore_short;
2559 req.rx_ignore_long = params->rx_ignore_long;
2561 ret = ti_sci_do_xfer(info, xfer);
2563 dev_err(info->dev, "Mbox send RX_CH_CFG fail %d\n", ret);
2568 (struct ti_sci_msg_rm_udmap_rx_ch_cfg_resp *)xfer->tx_message.buf;
2569 ret = ti_sci_is_response_ack(resp) ? 0 : -EINVAL;
2572 dev_dbg(info->dev, "RX_CH_CFG: chn %u ret:%d\n", params->index, ret);
2576 static int ti_sci_cmd_rm_udmap_rx_flow_cfg(
2577 const struct ti_sci_handle *handle,
2578 const struct ti_sci_msg_rm_udmap_flow_cfg *params)
2580 struct ti_sci_msg_rm_udmap_flow_cfg_resp *resp;
2581 struct ti_sci_msg_rm_udmap_flow_cfg_req req;
2582 struct ti_sci_xfer *xfer;
2583 struct ti_sci_info *info;
2587 return PTR_ERR(handle);
2591 info = handle_to_ti_sci_info(handle);
2593 xfer = ti_sci_setup_one_xfer(info, TISCI_MSG_RM_UDMAP_FLOW_CFG,
2594 TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
2595 (u32 *)&req, sizeof(req), sizeof(*resp));
2597 ret = PTR_ERR(xfer);
2598 dev_err(info->dev, "RX_FL_CFG: Message alloc failed(%d)\n",
2603 req.valid_params = params->valid_params;
2604 req.nav_id = params->nav_id;
2605 req.flow_index = params->flow_index;
2606 req.rx_einfo_present = params->rx_einfo_present;
2607 req.rx_psinfo_present = params->rx_psinfo_present;
2608 req.rx_error_handling = params->rx_error_handling;
2609 req.rx_desc_type = params->rx_desc_type;
2610 req.rx_sop_offset = params->rx_sop_offset;
2611 req.rx_dest_qnum = params->rx_dest_qnum;
2612 req.rx_src_tag_hi = params->rx_src_tag_hi;
2613 req.rx_src_tag_lo = params->rx_src_tag_lo;
2614 req.rx_dest_tag_hi = params->rx_dest_tag_hi;
2615 req.rx_dest_tag_lo = params->rx_dest_tag_lo;
2616 req.rx_src_tag_hi_sel = params->rx_src_tag_hi_sel;
2617 req.rx_src_tag_lo_sel = params->rx_src_tag_lo_sel;
2618 req.rx_dest_tag_hi_sel = params->rx_dest_tag_hi_sel;
2619 req.rx_dest_tag_lo_sel = params->rx_dest_tag_lo_sel;
2620 req.rx_fdq0_sz0_qnum = params->rx_fdq0_sz0_qnum;
2621 req.rx_fdq1_qnum = params->rx_fdq1_qnum;
2622 req.rx_fdq2_qnum = params->rx_fdq2_qnum;
2623 req.rx_fdq3_qnum = params->rx_fdq3_qnum;
2624 req.rx_ps_location = params->rx_ps_location;
2626 ret = ti_sci_do_xfer(info, xfer);
2628 dev_err(info->dev, "RX_FL_CFG: Mbox send fail %d\n", ret);
2633 (struct ti_sci_msg_rm_udmap_flow_cfg_resp *)xfer->tx_message.buf;
2634 ret = ti_sci_is_response_ack(resp) ? 0 : -EINVAL;
2637 dev_dbg(info->dev, "RX_FL_CFG: %u ret:%d\n", params->flow_index, ret);
2642 * ti_sci_cmd_set_fwl_region() - Request for configuring a firewall region
2643 * @handle: pointer to TI SCI handle
2644 * @region: region configuration parameters
2646 * Return: 0 if all went well, else returns appropriate error value.
2648 static int ti_sci_cmd_set_fwl_region(const struct ti_sci_handle *handle,
2649 const struct ti_sci_msg_fwl_region *region)
2651 struct ti_sci_msg_fwl_set_firewall_region_req req;
2652 struct ti_sci_msg_hdr *resp;
2653 struct ti_sci_info *info;
2654 struct ti_sci_xfer *xfer;
2658 return PTR_ERR(handle);
2662 info = handle_to_ti_sci_info(handle);
2664 xfer = ti_sci_setup_one_xfer(info, TISCI_MSG_FWL_SET,
2665 TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
2666 (u32 *)&req, sizeof(req), sizeof(*resp));
2668 ret = PTR_ERR(xfer);
2669 dev_err(info->dev, "Message alloc failed(%d)\n", ret);
2673 req.fwl_id = region->fwl_id;
2674 req.region = region->region;
2675 req.n_permission_regs = region->n_permission_regs;
2676 req.control = region->control;
2677 req.permissions[0] = region->permissions[0];
2678 req.permissions[1] = region->permissions[1];
2679 req.permissions[2] = region->permissions[2];
2680 req.start_address = region->start_address;
2681 req.end_address = region->end_address;
2683 ret = ti_sci_do_xfer(info, xfer);
2685 dev_err(info->dev, "Mbox send fail %d\n", ret);
2689 resp = (struct ti_sci_msg_hdr *)xfer->tx_message.buf;
2691 if (!ti_sci_is_response_ack(resp))
2698 * ti_sci_cmd_get_fwl_region() - Request for getting a firewall region
2699 * @handle: pointer to TI SCI handle
2700 * @region: region configuration parameters
2702 * Return: 0 if all went well, else returns appropriate error value.
2704 static int ti_sci_cmd_get_fwl_region(const struct ti_sci_handle *handle,
2705 struct ti_sci_msg_fwl_region *region)
2707 struct ti_sci_msg_fwl_get_firewall_region_req req;
2708 struct ti_sci_msg_fwl_get_firewall_region_resp *resp;
2709 struct ti_sci_info *info;
2710 struct ti_sci_xfer *xfer;
2714 return PTR_ERR(handle);
2718 info = handle_to_ti_sci_info(handle);
2720 xfer = ti_sci_setup_one_xfer(info, TISCI_MSG_FWL_GET,
2721 TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
2722 (u32 *)&req, sizeof(req), sizeof(*resp));
2724 ret = PTR_ERR(xfer);
2725 dev_err(info->dev, "Message alloc failed(%d)\n", ret);
2729 req.fwl_id = region->fwl_id;
2730 req.region = region->region;
2731 req.n_permission_regs = region->n_permission_regs;
2733 ret = ti_sci_do_xfer(info, xfer);
2735 dev_err(info->dev, "Mbox send fail %d\n", ret);
2739 resp = (struct ti_sci_msg_fwl_get_firewall_region_resp *)xfer->tx_message.buf;
2741 if (!ti_sci_is_response_ack(resp))
2744 region->fwl_id = resp->fwl_id;
2745 region->region = resp->region;
2746 region->n_permission_regs = resp->n_permission_regs;
2747 region->control = resp->control;
2748 region->permissions[0] = resp->permissions[0];
2749 region->permissions[1] = resp->permissions[1];
2750 region->permissions[2] = resp->permissions[2];
2751 region->start_address = resp->start_address;
2752 region->end_address = resp->end_address;
2758 * ti_sci_cmd_change_fwl_owner() - Request for changing a firewall owner
2759 * @handle: pointer to TI SCI handle
2760 * @region: region configuration parameters
2762 * Return: 0 if all went well, else returns appropriate error value.
2764 static int ti_sci_cmd_change_fwl_owner(const struct ti_sci_handle *handle,
2765 struct ti_sci_msg_fwl_owner *owner)
2767 struct ti_sci_msg_fwl_change_owner_info_req req;
2768 struct ti_sci_msg_fwl_change_owner_info_resp *resp;
2769 struct ti_sci_info *info;
2770 struct ti_sci_xfer *xfer;
2774 return PTR_ERR(handle);
2778 info = handle_to_ti_sci_info(handle);
2780 xfer = ti_sci_setup_one_xfer(info, TISCI_MSG_FWL_CHANGE_OWNER,
2781 TI_SCI_FLAG_REQ_ACK_ON_PROCESSED,
2782 (u32 *)&req, sizeof(req), sizeof(*resp));
2784 ret = PTR_ERR(xfer);
2785 dev_err(info->dev, "Message alloc failed(%d)\n", ret);
2789 req.fwl_id = owner->fwl_id;
2790 req.region = owner->region;
2791 req.owner_index = owner->owner_index;
2793 ret = ti_sci_do_xfer(info, xfer);
2795 dev_err(info->dev, "Mbox send fail %d\n", ret);
2799 resp = (struct ti_sci_msg_fwl_change_owner_info_resp *)xfer->tx_message.buf;
2801 if (!ti_sci_is_response_ack(resp))
2804 owner->fwl_id = resp->fwl_id;
2805 owner->region = resp->region;
2806 owner->owner_index = resp->owner_index;
2807 owner->owner_privid = resp->owner_privid;
2808 owner->owner_permission_bits = resp->owner_permission_bits;
2814 * ti_sci_setup_ops() - Setup the operations structures
2815 * @info: pointer to TISCI pointer
2817 static void ti_sci_setup_ops(struct ti_sci_info *info)
2819 struct ti_sci_ops *ops = &info->handle.ops;
2820 struct ti_sci_board_ops *bops = &ops->board_ops;
2821 struct ti_sci_dev_ops *dops = &ops->dev_ops;
2822 struct ti_sci_clk_ops *cops = &ops->clk_ops;
2823 struct ti_sci_core_ops *core_ops = &ops->core_ops;
2824 struct ti_sci_rm_core_ops *rm_core_ops = &ops->rm_core_ops;
2825 struct ti_sci_proc_ops *pops = &ops->proc_ops;
2826 struct ti_sci_rm_ringacc_ops *rops = &ops->rm_ring_ops;
2827 struct ti_sci_rm_psil_ops *psilops = &ops->rm_psil_ops;
2828 struct ti_sci_rm_udmap_ops *udmap_ops = &ops->rm_udmap_ops;
2829 struct ti_sci_fwl_ops *fwl_ops = &ops->fwl_ops;
2831 bops->board_config = ti_sci_cmd_set_board_config;
2832 bops->board_config_rm = ti_sci_cmd_set_board_config_rm;
2833 bops->board_config_security = ti_sci_cmd_set_board_config_security;
2834 bops->board_config_pm = ti_sci_cmd_set_board_config_pm;
2836 dops->get_device = ti_sci_cmd_get_device;
2837 dops->get_device_exclusive = ti_sci_cmd_get_device_exclusive;
2838 dops->idle_device = ti_sci_cmd_idle_device;
2839 dops->idle_device_exclusive = ti_sci_cmd_idle_device_exclusive;
2840 dops->put_device = ti_sci_cmd_put_device;
2841 dops->is_valid = ti_sci_cmd_dev_is_valid;
2842 dops->get_context_loss_count = ti_sci_cmd_dev_get_clcnt;
2843 dops->is_idle = ti_sci_cmd_dev_is_idle;
2844 dops->is_stop = ti_sci_cmd_dev_is_stop;
2845 dops->is_on = ti_sci_cmd_dev_is_on;
2846 dops->is_transitioning = ti_sci_cmd_dev_is_trans;
2847 dops->set_device_resets = ti_sci_cmd_set_device_resets;
2848 dops->get_device_resets = ti_sci_cmd_get_device_resets;
2849 dops->release_exclusive_devices = ti_sci_cmd_release_exclusive_devices;
2851 cops->get_clock = ti_sci_cmd_get_clock;
2852 cops->idle_clock = ti_sci_cmd_idle_clock;
2853 cops->put_clock = ti_sci_cmd_put_clock;
2854 cops->is_auto = ti_sci_cmd_clk_is_auto;
2855 cops->is_on = ti_sci_cmd_clk_is_on;
2856 cops->is_off = ti_sci_cmd_clk_is_off;
2858 cops->set_parent = ti_sci_cmd_clk_set_parent;
2859 cops->get_parent = ti_sci_cmd_clk_get_parent;
2860 cops->get_num_parents = ti_sci_cmd_clk_get_num_parents;
2862 cops->get_best_match_freq = ti_sci_cmd_clk_get_match_freq;
2863 cops->set_freq = ti_sci_cmd_clk_set_freq;
2864 cops->get_freq = ti_sci_cmd_clk_get_freq;
2866 core_ops->reboot_device = ti_sci_cmd_core_reboot;
2867 core_ops->query_msmc = ti_sci_cmd_query_msmc;
2869 rm_core_ops->get_range = ti_sci_cmd_get_resource_range;
2870 rm_core_ops->get_range_from_shost =
2871 ti_sci_cmd_get_resource_range_from_shost;
2873 pops->proc_request = ti_sci_cmd_proc_request;
2874 pops->proc_release = ti_sci_cmd_proc_release;
2875 pops->proc_handover = ti_sci_cmd_proc_handover;
2876 pops->set_proc_boot_cfg = ti_sci_cmd_set_proc_boot_cfg;
2877 pops->set_proc_boot_ctrl = ti_sci_cmd_set_proc_boot_ctrl;
2878 pops->proc_auth_boot_image = ti_sci_cmd_proc_auth_boot_image;
2879 pops->get_proc_boot_status = ti_sci_cmd_get_proc_boot_status;
2880 pops->proc_shutdown_no_wait = ti_sci_cmd_proc_shutdown_no_wait;
2882 rops->config = ti_sci_cmd_ring_config;
2884 psilops->pair = ti_sci_cmd_rm_psil_pair;
2885 psilops->unpair = ti_sci_cmd_rm_psil_unpair;
2887 udmap_ops->tx_ch_cfg = ti_sci_cmd_rm_udmap_tx_ch_cfg;
2888 udmap_ops->rx_ch_cfg = ti_sci_cmd_rm_udmap_rx_ch_cfg;
2889 udmap_ops->rx_flow_cfg = ti_sci_cmd_rm_udmap_rx_flow_cfg;
2891 fwl_ops->set_fwl_region = ti_sci_cmd_set_fwl_region;
2892 fwl_ops->get_fwl_region = ti_sci_cmd_get_fwl_region;
2893 fwl_ops->change_fwl_owner = ti_sci_cmd_change_fwl_owner;
2897 * ti_sci_get_handle_from_sysfw() - Get the TI SCI handle of the SYSFW
2898 * @dev: Pointer to the SYSFW device
2900 * Return: pointer to handle if successful, else EINVAL if invalid conditions
2904 struct ti_sci_handle *ti_sci_get_handle_from_sysfw(struct udevice *sci_dev)
2907 return ERR_PTR(-EINVAL);
2909 struct ti_sci_info *info = dev_get_priv(sci_dev);
2912 return ERR_PTR(-EINVAL);
2914 struct ti_sci_handle *handle = &info->handle;
2917 return ERR_PTR(-EINVAL);
2923 * ti_sci_get_handle() - Get the TI SCI handle for a device
2924 * @dev: Pointer to device for which we want SCI handle
2926 * Return: pointer to handle if successful, else EINVAL if invalid conditions
2929 const struct ti_sci_handle *ti_sci_get_handle(struct udevice *dev)
2932 return ERR_PTR(-EINVAL);
2934 struct udevice *sci_dev = dev_get_parent(dev);
2936 return ti_sci_get_handle_from_sysfw(sci_dev);
2940 * ti_sci_get_by_phandle() - Get the TI SCI handle using DT phandle
2942 * @propname: property name containing phandle on TISCI node
2944 * Return: pointer to handle if successful, else appropriate error value.
2946 const struct ti_sci_handle *ti_sci_get_by_phandle(struct udevice *dev,
2947 const char *property)
2949 struct ti_sci_info *entry, *info = NULL;
2953 err = ofnode_read_u32(dev_ofnode(dev), property, &phandle);
2955 return ERR_PTR(err);
2957 node = ofnode_get_by_phandle(phandle);
2958 if (!ofnode_valid(node))
2959 return ERR_PTR(-EINVAL);
2961 list_for_each_entry(entry, &ti_sci_list, list)
2962 if (ofnode_equal(dev_ofnode(entry->dev), node)) {
2968 return ERR_PTR(-ENODEV);
2970 return &info->handle;
2974 * ti_sci_of_to_info() - generate private data from device tree
2975 * @dev: corresponding system controller interface device
2976 * @info: pointer to driver specific private data
2978 * Return: 0 if all goes good, else appropriate error message.
2980 static int ti_sci_of_to_info(struct udevice *dev, struct ti_sci_info *info)
2984 ret = mbox_get_by_name(dev, "tx", &info->chan_tx);
2986 dev_err(dev, "%s: Acquiring Tx channel failed. ret = %d\n",
2991 ret = mbox_get_by_name(dev, "rx", &info->chan_rx);
2993 dev_err(dev, "%s: Acquiring Rx channel failed. ret = %d\n",
2998 /* Notify channel is optional. Enable only if populated */
2999 ret = mbox_get_by_name(dev, "notify", &info->chan_notify);
3001 dev_dbg(dev, "%s: Acquiring notify channel failed. ret = %d\n",
3005 info->host_id = dev_read_u32_default(dev, "ti,host-id",
3006 info->desc->default_host_id);
3008 info->is_secure = dev_read_bool(dev, "ti,secure-host");
3014 * ti_sci_probe() - Basic probe
3015 * @dev: corresponding system controller interface device
3017 * Return: 0 if all goes good, else appropriate error message.
3019 static int ti_sci_probe(struct udevice *dev)
3021 struct ti_sci_info *info;
3024 debug("%s(dev=%p)\n", __func__, dev);
3026 info = dev_get_priv(dev);
3027 info->desc = (void *)dev_get_driver_data(dev);
3029 ret = ti_sci_of_to_info(dev, info);
3031 dev_err(dev, "%s: Probe failed with error %d\n", __func__, ret);
3038 list_add_tail(&info->list, &ti_sci_list);
3039 ti_sci_setup_ops(info);
3041 ret = ti_sci_cmd_get_revision(&info->handle);
3043 INIT_LIST_HEAD(&info->dev_list);
3049 * ti_sci_dm_probe() - Basic probe for DM to TIFS SCI
3050 * @dev: corresponding system controller interface device
3052 * Return: 0 if all goes good, else appropriate error message.
3054 static __maybe_unused int ti_sci_dm_probe(struct udevice *dev)
3056 struct ti_sci_rm_core_ops *rm_core_ops;
3057 struct ti_sci_rm_udmap_ops *udmap_ops;
3058 struct ti_sci_rm_ringacc_ops *rops;
3059 struct ti_sci_rm_psil_ops *psilops;
3060 struct ti_sci_ops *ops;
3061 struct ti_sci_info *info;
3064 debug("%s(dev=%p)\n", __func__, dev);
3066 info = dev_get_priv(dev);
3067 info->desc = (void *)dev_get_driver_data(dev);
3069 ret = ti_sci_of_to_info(dev, info);
3071 dev_err(dev, "%s: Probe failed with error %d\n", __func__, ret);
3078 list_add_tail(&info->list, &ti_sci_list);
3080 ops = &info->handle.ops;
3082 rm_core_ops = &ops->rm_core_ops;
3083 rm_core_ops->get_range = ti_sci_cmd_get_resource_range_static;
3085 rops = &ops->rm_ring_ops;
3086 rops->config = ti_sci_cmd_ring_config;
3088 psilops = &ops->rm_psil_ops;
3089 psilops->pair = ti_sci_cmd_rm_psil_pair;
3090 psilops->unpair = ti_sci_cmd_rm_psil_unpair;
3092 udmap_ops = &ops->rm_udmap_ops;
3093 udmap_ops->tx_ch_cfg = ti_sci_cmd_rm_udmap_tx_ch_cfg;
3094 udmap_ops->rx_ch_cfg = ti_sci_cmd_rm_udmap_rx_ch_cfg;
3095 udmap_ops->rx_flow_cfg = ti_sci_cmd_rm_udmap_rx_flow_cfg;
3101 * ti_sci_get_free_resource() - Get a free resource from TISCI resource.
3102 * @res: Pointer to the TISCI resource
3104 * Return: resource num if all went ok else TI_SCI_RESOURCE_NULL.
3106 u16 ti_sci_get_free_resource(struct ti_sci_resource *res)
3110 for (set = 0; set < res->sets; set++) {
3111 free_bit = find_first_zero_bit(res->desc[set].res_map,
3112 res->desc[set].num);
3113 if (free_bit != res->desc[set].num) {
3114 set_bit(free_bit, res->desc[set].res_map);
3115 return res->desc[set].start + free_bit;
3119 return TI_SCI_RESOURCE_NULL;
3123 * ti_sci_release_resource() - Release a resource from TISCI resource.
3124 * @res: Pointer to the TISCI resource
3126 void ti_sci_release_resource(struct ti_sci_resource *res, u16 id)
3130 for (set = 0; set < res->sets; set++) {
3131 if (res->desc[set].start <= id &&
3132 (res->desc[set].num + res->desc[set].start) > id)
3133 clear_bit(id - res->desc[set].start,
3134 res->desc[set].res_map);
3139 * devm_ti_sci_get_of_resource() - Get a TISCI resource assigned to a device
3140 * @handle: TISCI handle
3141 * @dev: Device pointer to which the resource is assigned
3142 * @of_prop: property name by which the resource are represented
3144 * Note: This function expects of_prop to be in the form of tuples
3145 * <type, subtype>. Allocates and initializes ti_sci_resource structure
3146 * for each of_prop. Client driver can directly call
3147 * ti_sci_(get_free, release)_resource apis for handling the resource.
3149 * Return: Pointer to ti_sci_resource if all went well else appropriate
3152 struct ti_sci_resource *
3153 devm_ti_sci_get_of_resource(const struct ti_sci_handle *handle,
3154 struct udevice *dev, u32 dev_id, char *of_prop)
3156 u32 resource_subtype;
3157 struct ti_sci_resource *res;
3158 bool valid_set = false;
3162 res = devm_kzalloc(dev, sizeof(*res), GFP_KERNEL);
3164 return ERR_PTR(-ENOMEM);
3166 sets = dev_read_size(dev, of_prop);
3168 dev_err(dev, "%s resource type ids not available\n", of_prop);
3169 return ERR_PTR(sets);
3171 temp = malloc(sets);
3172 sets /= sizeof(u32);
3175 res->desc = devm_kcalloc(dev, res->sets, sizeof(*res->desc),
3178 return ERR_PTR(-ENOMEM);
3180 ret = dev_read_u32_array(dev, of_prop, temp, res->sets);
3182 return ERR_PTR(-EINVAL);
3184 for (i = 0; i < res->sets; i++) {
3185 resource_subtype = temp[i];
3186 ret = handle->ops.rm_core_ops.get_range(handle, dev_id,
3188 &res->desc[i].start,
3191 dev_dbg(dev, "type %d subtype %d not allocated for host %d\n",
3192 dev_id, resource_subtype,
3193 handle_to_ti_sci_info(handle)->host_id);
3194 res->desc[i].start = 0;
3195 res->desc[i].num = 0;
3200 dev_dbg(dev, "res type = %d, subtype = %d, start = %d, num = %d\n",
3201 dev_id, resource_subtype, res->desc[i].start,
3204 res->desc[i].res_map =
3205 devm_kzalloc(dev, BITS_TO_LONGS(res->desc[i].num) *
3206 sizeof(*res->desc[i].res_map), GFP_KERNEL);
3207 if (!res->desc[i].res_map)
3208 return ERR_PTR(-ENOMEM);
3214 return ERR_PTR(-EINVAL);
3217 /* Description for K2G */
3218 static const struct ti_sci_desc ti_sci_pmmc_k2g_desc = {
3219 .default_host_id = 2,
3220 /* Conservative duration */
3221 .max_rx_timeout_ms = 10000,
3222 /* Limited by MBOX_TX_QUEUE_LEN. K2G can handle upto 128 messages! */
3227 /* Description for AM654 */
3228 static const struct ti_sci_desc ti_sci_pmmc_am654_desc = {
3229 .default_host_id = 12,
3230 /* Conservative duration */
3231 .max_rx_timeout_ms = 10000,
3232 /* Limited by MBOX_TX_QUEUE_LEN. K2G can handle upto 128 messages! */
3237 /* Description for J721e DM to DMSC communication */
3238 static const struct ti_sci_desc ti_sci_dm_j721e_desc = {
3239 .default_host_id = 3,
3240 .max_rx_timeout_ms = 10000,
3245 static const struct udevice_id ti_sci_ids[] = {
3247 .compatible = "ti,k2g-sci",
3248 .data = (ulong)&ti_sci_pmmc_k2g_desc
3251 .compatible = "ti,am654-sci",
3252 .data = (ulong)&ti_sci_pmmc_am654_desc
3257 static __maybe_unused const struct udevice_id ti_sci_dm_ids[] = {
3259 .compatible = "ti,j721e-dm-sci",
3260 .data = (ulong)&ti_sci_dm_j721e_desc
3265 U_BOOT_DRIVER(ti_sci) = {
3267 .id = UCLASS_FIRMWARE,
3268 .of_match = ti_sci_ids,
3269 .probe = ti_sci_probe,
3270 .priv_auto = sizeof(struct ti_sci_info),
3273 #if IS_ENABLED(CONFIG_K3_DM_FW)
3274 U_BOOT_DRIVER(ti_sci_dm) = {
3275 .name = "ti_sci_dm",
3276 .id = UCLASS_FIRMWARE,
3277 .of_match = ti_sci_dm_ids,
3278 .probe = ti_sci_dm_probe,
3279 .priv_auto = sizeof(struct ti_sci_info),