6  * SPDX-License-Identifier:	GPL-2.0+
53 	writel(nvmop, &nvm_regs_p->ctrl.raw);  in flash_initiate_operation()
55 	/* enable flash write */  in flash_initiate_operation()
56 	writel(NVM_WREN, &nvm_regs_p->ctrl.set);  in flash_initiate_operation()
59 	writel(LOCK_KEY, &nvm_regs_p->key.raw);  in flash_initiate_operation()
60 	writel(UNLOCK_KEY1, &nvm_regs_p->key.raw);  in flash_initiate_operation()
61 	writel(UNLOCK_KEY2, &nvm_regs_p->key.raw);  in flash_initiate_operation()
64 	writel(NVM_WR, &nvm_regs_p->ctrl.set);  in flash_initiate_operation()
69 	int ret = wait_for_bit_le32(&nvm_regs_p->ctrl.raw,  in flash_wait_till_busy()
79 	tmp = readl(&nvm_regs_p->ctrl.raw);  in flash_complete_operation()
81 		printf("Error in Block Erase - Lock Bit may be set!\n");  in flash_complete_operation()
87 		printf("Error in Block Erase - low-vol detected!\n");  in flash_complete_operation()
92 	/* disable flash write or erase operation */  in flash_complete_operation()
93 	writel(NVM_WREN, &nvm_regs_p->ctrl.clr);  in flash_complete_operation()
100  * ERR_OK - OK
101  * ERR_INVAL - invalid sector arguments
102  * ERR_TIMEOUT - write timeout
103  * ERR_NOT_ERASED - Flash not erased
104  * ERR_UNKNOWN_FLASH_VENDOR - incorrect flash
112 	if ((info->flash_id & FLASH_VENDMASK) != FLASH_MAN_MCHP) {  in flash_erase()
113 		printf("Can't erase unknown flash type %08lx - aborted\n",  in flash_erase()
114 		       info->flash_id);  in flash_erase()
119 		printf("- no sectors to erase\n");  in flash_erase()
125 		if (info->protect[sect])  in flash_erase()
130 		printf("- Warning: %d protected sectors will not be erased!\n",  in flash_erase()
137 		if (info->protect[sect])  in flash_erase()
143 		/* write destination page address (physical) */  in flash_erase()
144 		sect_start = CPHYSADDR(info->start[sect]);  in flash_erase()
145 		writel(sect_start, &nvm_regs_p->addr.raw);  in flash_erase()
154 		/* re-enable interrupts if necessary */  in flash_erase()
169 		sect_end = info->start[sect] + info->size / info->sector_count;  in flash_erase()
170 		invalidate_dcache_range(info->start[sect], sect_end);  in flash_erase()
182 /* Write a word to flash */
198 	writel(CPHYSADDR(dest), &nvm_regs_p->addr.raw);  in write_word()
199 	writel(word, &nvm_regs_p->data.raw);  in write_word()
201 	/* word write */  in write_word()
207 	/* re-enable interrupts if necessary */  in write_word()
219  * ERR_OK - OK
220  * ERR_TIMEOUT - write timeout
221  * ERR_NOT_ERASED - Flash not erased
233 	l = addr - dst;  in write_buff()
239 		for (; (i < 4) && (cnt > 0); ++i, ++src, --cnt, ++cp)  in write_buff()
260 		cnt -= 4;  in write_buff()
272 		--cnt;  in write_buff()
294 	if (info->flash_id == FLASH_UNKNOWN) {  in flash_print_info()
299 	switch (info->flash_id & FLASH_VENDMASK) {  in flash_print_info()
308 	switch (info->flash_id & FLASH_TYPEMASK) {  in flash_print_info()
318 	       info->size >> 20, info->sector_count);  in flash_print_info()
321 	for (i = 0; i < info->sector_count; ++i) {  in flash_print_info()
325 		printf(" %08lX%s", info->start[i],  in flash_print_info()
326 		       info->protect[i] ? " (RO)" : "     ");  in flash_print_info()
357 	info->flash_id = FLASH_MAN_MCHP | FLASH_MCHP100T;  in pic32_flash_bank_init()
358 	info->sector_count = CONFIG_SYS_MAX_FLASH_SECT;  in pic32_flash_bank_init()
359 	info->size = size;  in pic32_flash_bank_init()
362 	sect_size = info->size / info->sector_count;  in pic32_flash_bank_init()
363 	for (sect = 0; sect < info->sector_count; sect++) {  in pic32_flash_bank_init()
364 		info->start[sect] = base;  in pic32_flash_bank_init()
365 		/* protect each sector by default */  in pic32_flash_bank_init()
366 		info->protect[sect] = 1;  in pic32_flash_bank_init()
373 	void *blob = (void *)gd->fdt_blob;  in pic32_flash_probe()
384 	 * match with reg-names.  in pic32_flash_probe()
388 	list = fdt_getprop(blob, node, "reg-names", &len);  in pic32_flash_probe()
390 		return -ENOENT;  in pic32_flash_probe()
395 		return -ENOENT;  in pic32_flash_probe()
413 	/* disable flash write/erase operations */  in pic32_flash_probe()
414 	writel(NVM_WREN, &nvm_regs_p->ctrl.clr);  in pic32_flash_probe()
420 		      CONFIG_SYS_MONITOR_BASE + monitor_flash_len - 1,  in pic32_flash_probe()
428 		      CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1,  in pic32_flash_probe()
435 	{ .compatible = "microchip,pic32mzda-flash" },