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https://github.com/brain-hackers/u-boot-brain
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![Tom Rini](/assets/img/avatar_default.png)
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
135 lines
2.9 KiB
C
135 lines
2.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2000-2004
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* (C) Copyright 2011
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* Texas Instruments, <www.ti.com>
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*
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* Matt Porter <mporter@ti.com>
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*/
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#include <common.h>
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#include <spl.h>
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#include <xyzModem.h>
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#include <asm/u-boot.h>
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#include <asm/utils.h>
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#include <linux/libfdt.h>
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#define BUF_SIZE 1024
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/*
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* Information required to load image using ymodem.
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*
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* @image_read: Now of bytes read from the image.
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* @buf: pointer to the previous read block.
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*/
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struct ymodem_fit_info {
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int image_read;
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char *buf;
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};
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static int getcymodem(void) {
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if (tstc())
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return (getc());
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return -1;
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}
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static ulong ymodem_read_fit(struct spl_load_info *load, ulong offset,
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ulong size, void *addr)
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{
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int res, err;
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struct ymodem_fit_info *info = load->priv;
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char *buf = info->buf;
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while (info->image_read < offset) {
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res = xyzModem_stream_read(buf, BUF_SIZE, &err);
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if (res <= 0)
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return res;
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info->image_read += res;
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}
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if (info->image_read > offset) {
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res = info->image_read - offset;
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memcpy(addr, &buf[BUF_SIZE - res], res);
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addr = addr + res;
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}
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while (info->image_read < offset + size) {
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res = xyzModem_stream_read(buf, BUF_SIZE, &err);
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if (res <= 0)
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return res;
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memcpy(addr, buf, res);
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info->image_read += res;
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addr += res;
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}
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return size;
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}
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static int spl_ymodem_load_image(struct spl_image_info *spl_image,
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struct spl_boot_device *bootdev)
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{
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int size = 0;
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int err;
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int res;
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int ret;
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connection_info_t info;
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char buf[BUF_SIZE];
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ulong addr = 0;
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info.mode = xyzModem_ymodem;
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ret = xyzModem_stream_open(&info, &err);
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if (ret) {
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printf("spl: ymodem err - %s\n", xyzModem_error(err));
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return ret;
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}
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res = xyzModem_stream_read(buf, BUF_SIZE, &err);
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if (res <= 0)
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goto end_stream;
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if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) &&
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image_get_magic((struct image_header *)buf) == FDT_MAGIC) {
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struct spl_load_info load;
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struct ymodem_fit_info info;
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debug("Found FIT\n");
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load.dev = NULL;
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load.priv = (void *)&info;
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load.filename = NULL;
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load.bl_len = 1;
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info.buf = buf;
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info.image_read = BUF_SIZE;
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load.read = ymodem_read_fit;
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ret = spl_load_simple_fit(spl_image, &load, 0, (void *)buf);
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size = info.image_read;
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while ((res = xyzModem_stream_read(buf, BUF_SIZE, &err)) > 0)
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size += res;
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} else {
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ret = spl_parse_image_header(spl_image,
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(struct image_header *)buf);
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if (ret)
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return ret;
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addr = spl_image->load_addr;
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memcpy((void *)addr, buf, res);
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size += res;
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addr += res;
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while ((res = xyzModem_stream_read(buf, BUF_SIZE, &err)) > 0) {
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memcpy((void *)addr, buf, res);
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size += res;
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addr += res;
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}
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}
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end_stream:
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xyzModem_stream_close(&err);
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xyzModem_stream_terminate(false, &getcymodem);
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printf("Loaded %d bytes\n", size);
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return 0;
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}
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SPL_LOAD_IMAGE_METHOD("UART", 0, BOOT_DEVICE_UART, spl_ymodem_load_image);
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