blob: c3d3c3bcd85355b77dc8cb1d4c945a589f550781 [file] [log] [blame]
Stephen Warren6f12ebf2014-06-11 16:03:36 -06001/*
2 * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved.
3 *
4 * SPDX-License-Identifier: GPL-2.0+
5 */
6
7#include <common.h>
8#include <malloc.h>
9#include <errno.h>
10#include <div64.h>
11#include <dfu.h>
Simon Glass843c9e82014-10-13 23:41:55 -060012#include <spi.h>
Stephen Warren6f12ebf2014-06-11 16:03:36 -060013#include <spi_flash.h>
14
15static long dfu_get_medium_size_sf(struct dfu_entity *dfu)
16{
17 return dfu->data.sf.size;
18}
19
20static int dfu_read_medium_sf(struct dfu_entity *dfu, u64 offset, void *buf,
21 long *len)
22{
23 return spi_flash_read(dfu->data.sf.dev, offset, *len, buf);
24}
25
26static int dfu_write_medium_sf(struct dfu_entity *dfu,
27 u64 offset, void *buf, long *len)
28{
29 int ret;
30
31 ret = spi_flash_erase(dfu->data.sf.dev, offset, *len);
32 if (ret)
33 return ret;
34
35 ret = spi_flash_write(dfu->data.sf.dev, offset, *len, buf);
36 if (ret)
37 return ret;
38
39 return 0;
40}
41
42static int dfu_flush_medium_sf(struct dfu_entity *dfu)
43{
44 return 0;
45}
46
47static unsigned int dfu_polltimeout_sf(struct dfu_entity *dfu)
48{
49 return DFU_DEFAULT_POLL_TIMEOUT;
50}
51
52static void dfu_free_entity_sf(struct dfu_entity *dfu)
53{
54 spi_flash_free(dfu->data.sf.dev);
55}
56
57static struct spi_flash *parse_dev(char *devstr)
58{
59 unsigned int bus;
60 unsigned int cs;
61 unsigned int speed = CONFIG_SF_DEFAULT_SPEED;
62 unsigned int mode = CONFIG_SF_DEFAULT_MODE;
63 char *s, *endp;
64 struct spi_flash *dev;
65
66 s = strsep(&devstr, ":");
67 if (!s || !*s || (bus = simple_strtoul(s, &endp, 0), *endp)) {
68 printf("Invalid SPI bus %s\n", s);
69 return NULL;
70 }
71
72 s = strsep(&devstr, ":");
73 if (!s || !*s || (cs = simple_strtoul(s, &endp, 0), *endp)) {
74 printf("Invalid SPI chip-select %s\n", s);
75 return NULL;
76 }
77
78 s = strsep(&devstr, ":");
79 if (s && *s) {
80 speed = simple_strtoul(s, &endp, 0);
81 if (*endp || !speed) {
82 printf("Invalid SPI speed %s\n", s);
83 return NULL;
84 }
85 }
86
87 s = strsep(&devstr, ":");
88 if (s && *s) {
89 mode = simple_strtoul(s, &endp, 0);
90 if (*endp || mode > 3) {
91 printf("Invalid SPI mode %s\n", s);
92 return NULL;
93 }
94 }
95
96 dev = spi_flash_probe(bus, cs, speed, mode);
97 if (!dev) {
98 printf("Failed to create SPI flash at %d:%d:%d:%d\n",
99 bus, cs, speed, mode);
100 return NULL;
101 }
102
103 return dev;
104}
105
106int dfu_fill_entity_sf(struct dfu_entity *dfu, char *devstr, char *s)
107{
108 char *st;
109
110 dfu->data.sf.dev = parse_dev(devstr);
111 if (!dfu->data.sf.dev)
112 return -ENODEV;
113
114 dfu->dev_type = DFU_DEV_SF;
115 dfu->max_buf_size = dfu->data.sf.dev->sector_size;
116
117 st = strsep(&s, " ");
118 if (!strcmp(st, "raw")) {
119 dfu->layout = DFU_RAW_ADDR;
120 dfu->data.sf.start = simple_strtoul(s, &s, 16);
121 s++;
122 dfu->data.sf.size = simple_strtoul(s, &s, 16);
123 } else {
124 printf("%s: Memory layout (%s) not supported!\n", __func__, st);
125 spi_flash_free(dfu->data.sf.dev);
126 return -1;
127 }
128
129 dfu->get_medium_size = dfu_get_medium_size_sf;
130 dfu->read_medium = dfu_read_medium_sf;
131 dfu->write_medium = dfu_write_medium_sf;
132 dfu->flush_medium = dfu_flush_medium_sf;
133 dfu->poll_timeout = dfu_polltimeout_sf;
134 dfu->free_entity = dfu_free_entity_sf;
135
136 /* initial state */
137 dfu->inited = 0;
138
139 return 0;
140}