2 * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved.
4 * SPDX-License-Identifier: GPL-2.0+
13 #include <spi_flash.h>
15 static long dfu_get_medium_size_sf(struct dfu_entity *dfu)
17 return dfu->data.sf.size;
20 static int dfu_read_medium_sf(struct dfu_entity *dfu, u64 offset, void *buf,
23 return spi_flash_read(dfu->data.sf.dev, offset, *len, buf);
26 static int dfu_write_medium_sf(struct dfu_entity *dfu,
27 u64 offset, void *buf, long *len)
31 ret = spi_flash_erase(dfu->data.sf.dev, offset,
32 dfu->data.sf.dev->sector_size);
36 ret = spi_flash_write(dfu->data.sf.dev, offset, *len, buf);
43 static int dfu_flush_medium_sf(struct dfu_entity *dfu)
48 static unsigned int dfu_polltimeout_sf(struct dfu_entity *dfu)
50 return DFU_DEFAULT_POLL_TIMEOUT;
53 static void dfu_free_entity_sf(struct dfu_entity *dfu)
55 spi_flash_free(dfu->data.sf.dev);
58 static struct spi_flash *parse_dev(char *devstr)
62 unsigned int speed = CONFIG_SF_DEFAULT_SPEED;
63 unsigned int mode = CONFIG_SF_DEFAULT_MODE;
65 struct spi_flash *dev;
67 s = strsep(&devstr, ":");
68 if (!s || !*s || (bus = simple_strtoul(s, &endp, 0), *endp)) {
69 printf("Invalid SPI bus %s\n", s);
73 s = strsep(&devstr, ":");
74 if (!s || !*s || (cs = simple_strtoul(s, &endp, 0), *endp)) {
75 printf("Invalid SPI chip-select %s\n", s);
79 s = strsep(&devstr, ":");
81 speed = simple_strtoul(s, &endp, 0);
82 if (*endp || !speed) {
83 printf("Invalid SPI speed %s\n", s);
88 s = strsep(&devstr, ":");
90 mode = simple_strtoul(s, &endp, 0);
91 if (*endp || mode > 3) {
92 printf("Invalid SPI mode %s\n", s);
97 dev = spi_flash_probe(bus, cs, speed, mode);
99 printf("Failed to create SPI flash at %d:%d:%d:%d\n",
100 bus, cs, speed, mode);
107 int dfu_fill_entity_sf(struct dfu_entity *dfu, char *devstr, char *s)
111 dfu->data.sf.dev = parse_dev(devstr);
112 if (!dfu->data.sf.dev)
115 dfu->dev_type = DFU_DEV_SF;
116 dfu->max_buf_size = dfu->data.sf.dev->sector_size;
118 st = strsep(&s, " ");
119 if (!strcmp(st, "raw")) {
120 dfu->layout = DFU_RAW_ADDR;
121 dfu->data.sf.start = simple_strtoul(s, &s, 16);
123 dfu->data.sf.size = simple_strtoul(s, &s, 16);
125 printf("%s: Memory layout (%s) not supported!\n", __func__, st);
126 spi_flash_free(dfu->data.sf.dev);
130 dfu->get_medium_size = dfu_get_medium_size_sf;
131 dfu->read_medium = dfu_read_medium_sf;
132 dfu->write_medium = dfu_write_medium_sf;
133 dfu->flush_medium = dfu_flush_medium_sf;
134 dfu->poll_timeout = dfu_polltimeout_sf;
135 dfu->free_entity = dfu_free_entity_sf;