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authorTien Fong Chee <tien.fong.chee@intel.com>2019-01-31 14:34:13 +0300
committerTom Rini <trini@konsulko.com>2019-04-23 01:12:58 +0300
commitdb32a446f91b421f516e9d2f5f42970e3a90a723 (patch)
treee2351a2fca5d56fbb34d97e57f94bbb25329cf60 /drivers
parentdab8788a8cadaa18a44001f98fa959fc672fff4f (diff)
downloadu-boot-db32a446f91b421f516e9d2f5f42970e3a90a723.tar.xz
misc: fs_loader: Add support for initializing block device
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> Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/misc/fs_loader.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/misc/fs_loader.c b/drivers/misc/fs_loader.c
index 57a14a3479..a2e3763c19 100644
--- a/drivers/misc/fs_loader.c
+++ b/drivers/misc/fs_loader.c
@@ -252,6 +252,29 @@ 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;
};