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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2023
* Ventana Micro Systems Inc.
*
*/
#include <spl.h>
#include <spl_load.h>
#include <image.h>
#include <fs.h>
#include <asm/cache.h>
#include <asm/io.h>
struct blk_dev {
const char *ifname;
const char *filename;
char dev_part_str[8];
};
static ulong spl_fit_read(struct spl_load_info *load, ulong file_offset,
ulong size, void *buf)
{
loff_t actlen;
int ret;
struct blk_dev *dev = (struct blk_dev *)load->priv;
ret = fs_set_blk_dev(dev->ifname, dev->dev_part_str, FS_TYPE_ANY);
if (ret) {
printf("spl: unable to set blk_dev %s %s. Err - %d\n",
dev->ifname, dev->dev_part_str, ret);
return ret;
}
ret = fs_read(dev->filename, virt_to_phys(buf), file_offset, size,
&actlen);
if (ret < 0) {
printf("spl: error reading image %s. Err - %d\n",
dev->filename, ret);
return ret;
}
return actlen;
}
int spl_blk_load_image(struct spl_image_info *spl_image,
struct spl_boot_device *bootdev,
enum uclass_id uclass_id, int devnum, int partnum)
{
const char *filename = CONFIG_SPL_FS_LOAD_PAYLOAD_NAME;
struct blk_desc *blk_desc;
loff_t filesize;
struct blk_dev dev;
struct spl_load_info load;
int ret;
blk_desc = blk_get_devnum_by_uclass_id(uclass_id, devnum);
if (!blk_desc) {
printf("blk desc for %d %d not found\n", uclass_id, devnum);
return -ENODEV;
}
blk_show_device(uclass_id, devnum);
dev.filename = filename;
dev.ifname = blk_get_uclass_name(uclass_id);
snprintf(dev.dev_part_str, sizeof(dev.dev_part_str) - 1, "%x:%x",
devnum, partnum);
ret = fs_set_blk_dev(dev.ifname, dev.dev_part_str, FS_TYPE_ANY);
if (ret) {
printf("spl: unable to set blk_dev %s %s. Err - %d\n",
dev.ifname, dev.dev_part_str, ret);
return ret;
}
ret = fs_size(filename, &filesize);
if (ret) {
printf("spl: unable to get file size: %s. Err - %d\n",
filename, ret);
return ret;
}
load.read = spl_fit_read;
if (IS_ENABLED(CONFIG_SPL_FS_FAT_DMA_ALIGN))
spl_set_bl_len(&load, ARCH_DMA_MINALIGN);
else
spl_set_bl_len(&load, 1);
load.priv = &dev;
return spl_load(spl_image, bootdev, &load, filesize, 0);
}
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