4  * SPDX-License-Identifier:	GPL-2.0
8  * Driver for DS4510, a CPU supervisor with integrated EEPROM, SRAM,
9  * and 4 programmable non-volatile GPIO pins.
39 		wrlen = DS4510_EEPROM_PAGE_SIZE -  in ds4510_mem_write()
44 			return -1;  in ds4510_mem_write()
47 		 * This delay isn't needed for SRAM writes but shouldn't delay  in ds4510_mem_write()
51 		count -= wrlen;  in ds4510_mem_write()
69  * nv = 0 - Writes to SEEPROM registers behave like EEPROM
70  * nv = 1 - Writes to SEEPROM registers behave like SRAM
77 		return -1;  in ds4510_see_write()
81 	else	/* Treat SEEPROM bits as SRAM */  in ds4510_see_write()
88  * Write de-assertion of reset signal delay
95 		return -1;  in ds4510_rstdelay_write()
121 		return -1;  in ds4510_pullup_read()
135 		if (i2c_read(chip, DS4510_IO0 - i, 1, &data, 1))  in ds4510_gpio_write()
136 			return -1;  in ds4510_gpio_write()
143 		if (ds4510_mem_write(chip, DS4510_IO0 - i, &data, 1))  in ds4510_gpio_write()
144 			return -1;  in ds4510_gpio_write()
160 		if (i2c_read(chip, DS4510_IO0 - i, 1, &data, 1))  in ds4510_gpio_read()
161 			return -1;  in ds4510_gpio_read()
178 		return -1;  in ds4510_gpio_read_val()
195 		return -1;  in ds4510_info()
199 		return -1;  in ds4510_info()
208 	printf("---------------\n");  in ds4510_info()
212 	if (tmp == -1)  in ds4510_info()
214 	for (i = DS4510_NUM_IO - 1; i >= 0; i--)  in ds4510_info()
220 	if (tmp == -1)  in ds4510_info()
221 		return -1;  in ds4510_info()
222 	for (i = DS4510_NUM_IO - 1; i >= 0; i--)  in ds4510_info()
228 	if (tmp == -1)  in ds4510_info()
229 		return -1;  in ds4510_info()
230 	for (i = DS4510_NUM_IO - 1; i >= 0; i--)  in ds4510_info()
238 	U_BOOT_CMD_MKENT(device, 3, 0, (void *)DS4510_CMD_DEVICE, "", ""),
247 	U_BOOT_CMD_MKENT(sram, 6, 0, (void *)DS4510_CMD_SRAM, "", ""),
265 	/* All commands but "device" require 'maxargs' arguments */  in do_ds4510()
266 	if (!c || !((argc == (c->maxargs)) ||  in do_ds4510()
267 		(((int)c->cmd == DS4510_CMD_DEVICE) &&  in do_ds4510()
268 		 (argc == (c->maxargs - 1))))) {  in do_ds4510()
280 	switch ((int)c->cmd) {  in do_ds4510()
284 		printf("Current device address: 0x%x\n", chip);  in do_ds4510()
290 		if (tmp == -1)  in do_ds4510()
291 			return -1;  in do_ds4510()
299 		if (tmp == -1)  in do_ds4510()
300 			return -1;  in do_ds4510()
304 		if (tmp == -1)  in do_ds4510()
305 			return -1;  in do_ds4510()
332 	/* Only eeprom, seeprom, and sram commands should make it here */  in do_ds4510()
346 		return -1;  in do_ds4510()
354 	"ds4510 eeprom/seeprom/sram/gpio access",
355 	"device [dev]\n"
356 	"	- show or set current device address\n"
358 	"	- display ds4510 info\n"
360 	"	- set pin low or high-Z\n"
362 	"	- read value of pin\n"
364 	"	- disable/enable pullup on specified pin\n"
366 	"	- make gpio and seeprom writes volatile/non-volatile"
368 	"ds4510 rstdelay 0-3\n"
369 	"	- set reset output delay"
373 	"	- read/write 'cnt' bytes at EEPROM offset 'off'\n"
376 	"	- read/write 'cnt' bytes at SRAM-shadowed EEPROM offset 'off'\n"
377 	"ds4510 sram read addr off cnt\n"
378 	"ds4510 sram write addr off cnt\n"
379 	"	- read/write 'cnt' bytes at SRAM offset 'off'"