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// SPDX-License-Identifier: GPL-2.0+
/*
* blkmap helper function
*
* Copyright (c) 2023, Linaro Limited
*/
#include <blk.h>
#include <blkmap.h>
#include <dm/device.h>
#include <dm/device-internal.h>
int blkmap_create_ramdisk(const char *label, ulong image_addr, ulong image_size,
struct udevice **devp)
{
int ret;
lbaint_t blknum;
struct blkmap *bm;
struct blk_desc *desc;
struct udevice *bm_dev;
ret = blkmap_create(label, &bm_dev);
if (ret) {
log_err("failed to create blkmap\n");
return ret;
}
bm = dev_get_plat(bm_dev);
desc = dev_get_uclass_plat(bm->blk);
blknum = image_size >> desc->log2blksz;
ret = blkmap_map_pmem(bm_dev, 0, blknum, image_addr);
if (ret) {
log_err("Unable to map %#llx at block %d : %d\n",
(unsigned long long)image_addr, 0, ret);
goto err;
}
log_info("Block %d+0x" LBAF " mapped to %#llx\n", 0, blknum,
(unsigned long long)image_addr);
ret = device_probe(bm->blk);
if (ret)
goto err;
if (devp)
*devp = bm_dev;
return 0;
err:
blkmap_destroy(bm_dev);
return ret;
}
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