From patchwork Wed Feb 26 10:38:41 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michal Simek X-Patchwork-Id: 236858 List-Id: U-Boot discussion From: michal.simek at xilinx.com (Michal Simek) Date: Wed, 26 Feb 2020 11:38:41 +0100 Subject: [PATCH v2 2/4] nand: raw: zynq: Do not try to probe driver if nand flash is disabled In-Reply-To: References: Message-ID: <34105b3d468216b08107d367d83fd9e9975d3459.1582713521.git.michal.simek@xilinx.com> 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 Reviewed-by: Jagan Teki --- 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;