4  * SPDX-License-Identifier: Apache-2.0
22 /* EEPROM Mode Register */
28 /* EEPROM Execute Register - Transfer size bit position */
31 /* EEPROM Execute Register - Commands */
37 /* EEPROM Execute Register - Address mask */
54 	uint32_t mode;  member
84 	regs->execute = temp;  in eeprom_xec_execute_reg_set()
96 		*destination_ptr = regs->buffer[count];  in eeprom_xec_data_buffer_read()
112 		regs->buffer[count] = *source_ptr;  in eeprom_xec_data_buffer_write()
133 		sts = XEC_EEPROM_STS_TRANSFER_COMPL & regs->status;  in eeprom_xec_wait_transfer_compl()
140 		regs->status = XEC_EEPROM_STS_TRANSFER_COMPL;  in eeprom_xec_wait_transfer_compl()
155 		regs->buffer[0] = 0;  in eeprom_xec_wait_write_compl()
158 		regs->execute = XEC_EEPROM_EXC_CMD_READ_STS;  in eeprom_xec_wait_write_compl()
162 		sts = regs->buffer[0] & (XEC_EEPROM_STS_BYTE_WIP |  in eeprom_xec_wait_write_compl()
171 							uint8_t *buf, size_t len, off_t offset)  in eeprom_xec_data_read_32_bytes()  argument
174 	eeprom_xec_execute_reg_set(regs, len, XEC_EEPROM_EXC_CMD_READ, offset);  in eeprom_xec_data_read_32_bytes()
184 							uint8_t *buf, size_t len, off_t offset)  in eeprom_xec_data_write_32_bytes()  argument
189 	sz = offset % XEC_EEPROM_PAGE_SIZE;  in eeprom_xec_data_write_32_bytes()
195 			rem_bytes = (XEC_EEPROM_PAGE_SIZE - sz);  in eeprom_xec_data_write_32_bytes()
201 						XEC_EEPROM_EXC_CMD_WRITE, offset);  in eeprom_xec_data_write_32_bytes()
207 			offset += rem_bytes;  in eeprom_xec_data_write_32_bytes()
209 			len = (len - rem_bytes);  in eeprom_xec_data_write_32_bytes()
216 	eeprom_xec_execute_reg_set(regs, len, XEC_EEPROM_EXC_CMD_WRITE, offset);  in eeprom_xec_data_write_32_bytes()
223 static int eeprom_xec_read(const struct device *dev, off_t offset,  in eeprom_xec_read()  argument
227 	const struct eeprom_xec_config *config = dev->config;  in eeprom_xec_read()
228 	struct eeprom_xec_data * const data = dev->data;  in eeprom_xec_read()
229 	struct eeprom_xec_regs * const regs = config->regs;  in eeprom_xec_read()
238 	if ((offset + len) > config->size) {  in eeprom_xec_read()
240 		return -EINVAL;  in eeprom_xec_read()
243 	k_mutex_lock(&data->lock_mtx, K_FOREVER);  in eeprom_xec_read()
248 		if ((len-chunk_idx) < XEC_EEPROM_TRANSFER_SIZE_READ) {  in eeprom_xec_read()
249 			chunk_size = (len-chunk_idx);  in eeprom_xec_read()
252 						chunk_size, (offset+chunk_idx));  in eeprom_xec_read()
255 	k_mutex_unlock(&data->lock_mtx);  in eeprom_xec_read()
260 static int eeprom_xec_write(const struct device *dev, off_t offset,  in eeprom_xec_write()  argument
263 	const struct eeprom_xec_config *config = dev->config;  in eeprom_xec_write()
264 	struct eeprom_xec_data * const data = dev->data;  in eeprom_xec_write()
265 	struct eeprom_xec_regs * const regs = config->regs;  in eeprom_xec_write()
274 	if ((offset + len) > config->size) {  in eeprom_xec_write()
276 		return -EINVAL;  in eeprom_xec_write()
279 	k_mutex_lock(&data->lock_mtx, K_FOREVER);  in eeprom_xec_write()
284 		if ((len-chunk_idx) < XEC_EEPROM_TRANSFER_SIZE_WRITE) {  in eeprom_xec_write()
285 			chunk_size = (len-chunk_idx);  in eeprom_xec_write()
288 							chunk_size, (offset+chunk_idx));  in eeprom_xec_write()
292 	k_mutex_unlock(&data->lock_mtx);  in eeprom_xec_write()
299 	const struct eeprom_xec_config *config = dev->config;  in eeprom_xec_size()
301 	return config->size;  in eeprom_xec_size()
307 	const struct eeprom_xec_config *const devcfg = dev->config;  in eeprom_xec_pm_action()
308 	struct eeprom_xec_regs * const regs = devcfg->regs;  in eeprom_xec_pm_action()
313 		ret = pinctrl_apply_state(devcfg->pcfg, PINCTRL_STATE_DEFAULT);  in eeprom_xec_pm_action()
318 		regs->mode |= XEC_EEPROM_MODE_ACTIVATE;  in eeprom_xec_pm_action()
322 		regs->mode &= (~XEC_EEPROM_MODE_ACTIVATE);  in eeprom_xec_pm_action()
323 		ret = pinctrl_apply_state(devcfg->pcfg, PINCTRL_STATE_SLEEP);  in eeprom_xec_pm_action()
324 		/* pinctrl-1 does not exist. */  in eeprom_xec_pm_action()
325 		if (ret == -ENOENT) {  in eeprom_xec_pm_action()
330 		ret = -ENOTSUP;  in eeprom_xec_pm_action()
339 	const struct eeprom_xec_config *config = dev->config;  in eeprom_xec_init()
340 	struct eeprom_xec_data * const data = dev->data;  in eeprom_xec_init()
341 	struct eeprom_xec_regs * const regs = config->regs;  in eeprom_xec_init()
343 	k_mutex_init(&data->lock_mtx);  in eeprom_xec_init()
345 	int ret = pinctrl_apply_state(config->pcfg, PINCTRL_STATE_DEFAULT);  in eeprom_xec_init()
352 	regs->mode |= XEC_EEPROM_MODE_ACTIVATE;  in eeprom_xec_init()