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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2022 Sean Anderson <sean.anderson@seco.com>
*/
#include <image.h>
#include <log.h>
#include <semihosting.h>
#include <spl.h>
#include <spl_load.h>
static ulong smh_fit_read(struct spl_load_info *load, ulong file_offset,
ulong size, void *buf)
{
long fd = *(long *)load->priv;
ulong ret;
if (smh_seek(fd, file_offset))
return 0;
ret = smh_read(fd, buf, size);
return ret < 0 ? 0 : ret;
}
static int spl_smh_load_image(struct spl_image_info *spl_image,
struct spl_boot_device *bootdev)
{
const char *filename = CONFIG_SPL_FS_LOAD_PAYLOAD_NAME;
int ret;
long fd, len;
struct spl_load_info load;
fd = smh_open(filename, MODE_READ | MODE_BINARY);
if (fd < 0) {
log_debug("could not open %s: %ld\n", filename, fd);
return fd;
}
ret = smh_flen(fd);
if (ret < 0) {
log_debug("could not get length of image: %d\n", ret);
goto out;
}
len = ret;
load.read = smh_fit_read;
spl_set_bl_len(&load, 1);
load.priv = &fd;
ret = spl_load(spl_image, bootdev, &load, len, 0);
if (ret)
log_debug("could not read %s: %d\n", filename, ret);
out:
smh_close(fd);
return ret;
}
SPL_LOAD_IMAGE_METHOD("SEMIHOSTING", 0, BOOT_DEVICE_SMH, spl_smh_load_image);
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