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git.ipfire.org Git - people/ms/u-boot.git/blob - common/spl/spl_ymodem.c
2 * (C) Copyright 2000-2004
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
6 * Texas Instruments, <www.ti.com>
8 * Matt Porter <mporter@ti.com>
10 * SPDX-License-Identifier: GPL-2.0+
15 #include <asm/u-boot.h>
16 #include <asm/utils.h>
22 * Information required to load image using ymodem.
24 * @image_read: Now of bytes read from the image.
25 * @buf: pointer to the previous read block.
27 struct ymodem_fit_info
{
32 static int getcymodem(void) {
38 static ulong
ymodem_read_fit(struct spl_load_info
*load
, ulong offset
,
39 ulong size
, void *addr
)
42 struct ymodem_fit_info
*info
= load
->priv
;
43 char *buf
= info
->buf
;
45 while (info
->image_read
< offset
) {
46 res
= xyzModem_stream_read(buf
, BUF_SIZE
, &err
);
49 info
->image_read
+= res
;
52 if (info
->image_read
> offset
) {
53 res
= info
->image_read
- offset
;
54 memcpy(addr
, &buf
[BUF_SIZE
- res
], res
);
58 while (info
->image_read
< offset
+ size
) {
59 res
= xyzModem_stream_read(buf
, BUF_SIZE
, &err
);
63 memcpy(addr
, buf
, res
);
64 info
->image_read
+= res
;
71 static int spl_ymodem_load_image(struct spl_image_info
*spl_image
,
72 struct spl_boot_device
*bootdev
)
78 connection_info_t info
;
82 info
.mode
= xyzModem_ymodem
;
83 ret
= xyzModem_stream_open(&info
, &err
);
85 printf("spl: ymodem err - %s\n", xyzModem_error(err
));
89 res
= xyzModem_stream_read(buf
, BUF_SIZE
, &err
);
93 if (IS_ENABLED(CONFIG_SPL_LOAD_FIT
) &&
94 image_get_magic((struct image_header
*)buf
) == FDT_MAGIC
) {
95 struct spl_load_info load
;
96 struct ymodem_fit_info info
;
100 load
.priv
= (void *)&info
;
101 load
.filename
= NULL
;
104 info
.image_read
= BUF_SIZE
;
105 load
.read
= ymodem_read_fit
;
106 ret
= spl_load_simple_fit(spl_image
, &load
, 0, (void *)buf
);
107 size
= info
.image_read
;
109 while ((res
= xyzModem_stream_read(buf
, BUF_SIZE
, &err
)) > 0)
112 ret
= spl_parse_image_header(spl_image
,
113 (struct image_header
*)buf
);
116 addr
= spl_image
->load_addr
;
117 memcpy((void *)addr
, buf
, res
);
121 while ((res
= xyzModem_stream_read(buf
, BUF_SIZE
, &err
)) > 0) {
122 memcpy((void *)addr
, buf
, res
);
129 xyzModem_stream_close(&err
);
130 xyzModem_stream_terminate(false, &getcymodem
);
132 printf("Loaded %d bytes\n", size
);
135 SPL_LOAD_IMAGE_METHOD("UART", 0, BOOT_DEVICE_UART
, spl_ymodem_load_image
);