From: Tien Fong Chee tien.fong.chee@intel.com
Firmware loader would encounter problem if the block device is accessed before initializing it. This patch would adding the support of probing block device and initializing block before the block device is accessed by firmware loader.
Signed-off-by: Tien Fong Chee tien.fong.chee@intel.com
---
Changes in v3: - Initializing block device through probing the blk device
Changes in v2: - Initializing MMC through probing the blk device --- drivers/misc/fs_loader.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+)
diff --git a/drivers/misc/fs_loader.c b/drivers/misc/fs_loader.c index 57a14a3..df35ec6 100644 --- a/drivers/misc/fs_loader.c +++ b/drivers/misc/fs_loader.c @@ -12,6 +12,7 @@ #include <linux/string.h> #include <mapmem.h> #include <malloc.h> +#include <mmc.h> #include <spl.h>
DECLARE_GLOBAL_DATA_PTR; @@ -252,6 +253,31 @@ static int fs_loader_ofdata_to_platdata(struct udevice *dev)
static int fs_loader_probe(struct udevice *dev) { +#if CONFIG_IS_ENABLED(DM) && CONFIG_IS_ENABLED(BLK) + int ret; + struct device_platdata *plat = dev->platdata; + + if (plat->phandlepart.phandle) { + ofnode node = ofnode_get_by_phandle(plat->phandlepart.phandle); + + struct udevice *parent_dev = NULL; + + ret = device_get_global_by_ofnode(node, &parent_dev); + + if (!ret) { + struct udevice *dev; + + ret = blk_get_from_parent(parent_dev, &dev); + if (ret) { + debug("fs_loader: No block device: %d\n", + ret); + + return ret; + } + } + } +#endif + return 0; };