pci/cobalt/cobalt-flash.c

1 // SPDX-License-Identifier: GPL-2.0-only
3  *  Cobalt NOR flash functions
5  *  Copyright 2012-2015 Cisco Systems, Inc. and/or its affiliates.
11 #include <linux/mtd/cfi.h>
14 #include "cobalt-flash.h"
19 	.name =		"cobalt-flash",
29 	r.x[0] = cobalt_bus_read32(map->virt, ADRS(offset));  in flash_read16()
43 	cobalt_bus_write16(map->virt, ADRS(offset), data);  in flash_write16()
54 		data = cobalt_bus_read32(map->virt, ADRS(src));  in flash_copy_from()
59 			len--;  in flash_copy_from()
78 			len--;  in flash_copy_to()
81 		cobalt_bus_write16(map->virt, ADRS(dest - 2), data);  in flash_copy_to()
90 	BUG_ON(!map_bankwidth_supported(map->bankwidth));  in cobalt_flash_probe()
91 	map->virt = cobalt->bar1;  in cobalt_flash_probe()
92 	map->read = flash_read16;  in cobalt_flash_probe()
93 	map->write = flash_write16;  in cobalt_flash_probe()
94 	map->copy_from = flash_copy_from;  in cobalt_flash_probe()
95 	map->copy_to = flash_copy_to;  in cobalt_flash_probe()
98 	cobalt->mtd = mtd;  in cobalt_flash_probe()
100 		cobalt_err("Probe CFI flash failed!\n");  in cobalt_flash_probe()
101 		return -1;  in cobalt_flash_probe()
104 	mtd->owner = THIS_MODULE;  in cobalt_flash_probe()
105 	mtd->dev.parent = &cobalt->pci_dev->dev;  in cobalt_flash_probe()
112 	if (cobalt->mtd) {  in cobalt_flash_remove()
113 		mtd_device_unregister(cobalt->mtd);  in cobalt_flash_remove()
114 		map_destroy(cobalt->mtd);  in cobalt_flash_remove()