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efi_driver: carve out function to create block device

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* Carve out function efi_bl_create_block_device() from efi_bl_bind().
* Add a check for U-Boot devices to efi_bl_bind().

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
This commit is contained in:
Heinrich Schuchardt 2022-10-04 16:19:30 +02:00
parent f3290be388
commit a6d4f704ad
1 changed files with 25 additions and 7 deletions
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32
lib/efi_driver/efi_block_device.c
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@ -114,21 +114,16 @@ static ulong efi_bl_write(struct udevice *dev, lbaint_t blknr, lbaint_t blkcnt,
* @interface: block io protocol
* Return: status code
*/
static efi_status_t efi_bl_bind(efi_handle_t handle, void *interface)
static efi_status_t
efi_bl_create_block_device(efi_handle_t handle, void *interface)
{
struct udevice *bdev = NULL, *parent = dm_root();
efi_status_t ret;
int devnum;
char *name;
struct efi_object *obj = efi_search_obj(handle);
struct efi_block_io *io = interface;
struct efi_blk_plat *plat;
EFI_PRINT("%s: handle %p, interface %p\n", __func__, handle, io);
if (!obj || !interface)
return EFI_INVALID_PARAMETER;
devnum = blk_find_max_devnum(UCLASS_EFI_LOADER);
if (devnum == -ENODEV)
devnum = 0;
@ -176,6 +171,29 @@ err:
return ret;
}
/**
* efi_bl_bind() - bind to a block io protocol
*
* @handle: handle
* @interface: block io protocol
* Return: status code
*/
static efi_status_t efi_bl_bind(efi_handle_t handle, void *interface)
{
efi_status_t ret = EFI_SUCCESS;
struct efi_object *obj = efi_search_obj(handle);
EFI_PRINT("%s: handle %p, interface %p\n", __func__, handle, interface);
if (!obj || !interface)
return EFI_INVALID_PARAMETER;
if (!handle->dev)
ret = efi_bl_create_block_device(handle, interface);
return ret;
}
/* Block device driver operators */
static const struct blk_ops efi_blk_ops = {
.read = efi_bl_read,