From patchwork Tue Feb 25 14:33:30 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michal Simek X-Patchwork-Id: 236798 List-Id: U-Boot discussion From: michal.simek at xilinx.com (Michal Simek) Date: Tue, 25 Feb 2020 15:33:30 +0100 Subject: [PATCH 2/4] nand: raw: zynq: Do not try to probe driver if nand flash is disabled In-Reply-To: <3ad901af606e2355526aa363272db03a946156fc.1582641209.git.michal.simek@xilinx.com> References: <3ad901af606e2355526aa363272db03a946156fc.1582641209.git.michal.simek@xilinx.com> Message-ID: 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 --- 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;