2 * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved.
4 * SPDX-License-Identifier: GPL-2.0+
13 #include <spi_flash.h>
15 static int dfu_get_medium_size_sf(struct dfu_entity *dfu, u64 *size)
17 *size = dfu->data.sf.size;
22 static int dfu_read_medium_sf(struct dfu_entity *dfu, u64 offset, void *buf,
25 return spi_flash_read(dfu->data.sf.dev, dfu->data.sf.start + offset,
29 static u64 find_sector(struct dfu_entity *dfu, u64 start, u64 offset)
31 return (lldiv((start + offset), dfu->data.sf.dev->sector_size)) *
32 dfu->data.sf.dev->sector_size;
35 static int dfu_write_medium_sf(struct dfu_entity *dfu,
36 u64 offset, void *buf, long *len)
40 ret = spi_flash_erase(dfu->data.sf.dev,
41 find_sector(dfu, dfu->data.sf.start, offset),
42 dfu->data.sf.dev->sector_size);
46 ret = spi_flash_write(dfu->data.sf.dev, dfu->data.sf.start + offset,
54 static int dfu_flush_medium_sf(struct dfu_entity *dfu)
59 static unsigned int dfu_polltimeout_sf(struct dfu_entity *dfu)
61 return DFU_DEFAULT_POLL_TIMEOUT;
64 static void dfu_free_entity_sf(struct dfu_entity *dfu)
66 spi_flash_free(dfu->data.sf.dev);
69 static struct spi_flash *parse_dev(char *devstr)
73 unsigned int speed = CONFIG_SF_DEFAULT_SPEED;
74 unsigned int mode = CONFIG_SF_DEFAULT_MODE;
76 struct spi_flash *dev;
78 s = strsep(&devstr, ":");
79 if (!s || !*s || (bus = simple_strtoul(s, &endp, 0), *endp)) {
80 printf("Invalid SPI bus %s\n", s);
84 s = strsep(&devstr, ":");
85 if (!s || !*s || (cs = simple_strtoul(s, &endp, 0), *endp)) {
86 printf("Invalid SPI chip-select %s\n", s);
90 s = strsep(&devstr, ":");
92 speed = simple_strtoul(s, &endp, 0);
93 if (*endp || !speed) {
94 printf("Invalid SPI speed %s\n", s);
99 s = strsep(&devstr, ":");
101 mode = simple_strtoul(s, &endp, 0);
102 if (*endp || mode > 3) {
103 printf("Invalid SPI mode %s\n", s);
108 dev = spi_flash_probe(bus, cs, speed, mode);
110 printf("Failed to create SPI flash at %d:%d:%d:%d\n",
111 bus, cs, speed, mode);
118 int dfu_fill_entity_sf(struct dfu_entity *dfu, char *devstr, char *s)
121 char *devstr_bkup = strdup(devstr);
123 dfu->data.sf.dev = parse_dev(devstr_bkup);
125 if (!dfu->data.sf.dev)
128 dfu->dev_type = DFU_DEV_SF;
129 dfu->max_buf_size = dfu->data.sf.dev->sector_size;
131 st = strsep(&s, " ");
132 if (!strcmp(st, "raw")) {
133 dfu->layout = DFU_RAW_ADDR;
134 dfu->data.sf.start = simple_strtoul(s, &s, 16);
136 dfu->data.sf.size = simple_strtoul(s, &s, 16);
138 printf("%s: Memory layout (%s) not supported!\n", __func__, st);
139 spi_flash_free(dfu->data.sf.dev);
143 dfu->get_medium_size = dfu_get_medium_size_sf;
144 dfu->read_medium = dfu_read_medium_sf;
145 dfu->write_medium = dfu_write_medium_sf;
146 dfu->flush_medium = dfu_flush_medium_sf;
147 dfu->poll_timeout = dfu_polltimeout_sf;
148 dfu->free_entity = dfu_free_entity_sf;