[PATCH v2 2/4] nand: raw: zynq: Do not try to probe driver if nand flash is disabled

Michal Simek michal.simek at xilinx.com
Wed Feb 26 11:38:41 CET 2020


There is no reason to continue when DT status property indicates that NAND
flash is disabled. But that means that NOR flash should be present that's
why try it find it out.

Signed-off-by: Michal Simek <michal.simek at xilinx.com>
---

Changes in v2: None

 drivers/mtd/nand/raw/zynq_nand.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/mtd/nand/raw/zynq_nand.c b/drivers/mtd/nand/raw/zynq_nand.c
index 703914969289..0aea83dac0e6 100644
--- a/drivers/mtd/nand/raw/zynq_nand.c
+++ b/drivers/mtd/nand/raw/zynq_nand.c
@@ -1090,6 +1090,11 @@ static int zynq_nand_probe(struct udevice *dev)
 		return -ENODEV;
 	}
 
+	if (!ofnode_is_available(of_nand)) {
+		debug("Nand node in dt disabled\n");
+		return dm_scan_fdt_dev(dev);
+	}
+
 	if (ofnode_read_resource(of_nand, 0, &res)) {
 		printf("Failed to get nand resource\n");
 		return -ENODEV;
-- 
2.25.1



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