From: Philippe Reynes <philippe.reynes@softathome.com>
Date: Fri, 15 Mar 2019 14:14:38 +0000 (+0100)
Subject: drivers: nand: brcmnand: add an option to read the write-protect from device tree
X-Git-Tag: v2025.01-rc5-pxa1908~3022^2~52
X-Git-Url: http://git.dujemihanovic.xyz/img/html/static/git-logo.png?a=commitdiff_plain;h=f917438772c7c7da7f30e9209d9f100edac0255e;p=u-boot.git

drivers: nand: brcmnand: add an option to read the write-protect from device tree

The option write-protect may only change on the kernel command line,
we add a property in the device tree to be more flexible.

Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
---

diff --git a/drivers/mtd/nand/raw/brcmnand/brcmnand.c b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
index e333320808..faa6da42d5 100644
--- a/drivers/mtd/nand/raw/brcmnand/brcmnand.c
+++ b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
@@ -2671,6 +2671,9 @@ int brcmnand_probe(struct udevice *dev, struct brcmnand_soc *soc)
 	/* Disable XOR addressing */
 	brcmnand_rmw_reg(ctrl, BRCMNAND_CS_XOR, 0xff, 0, 0);
 
+	/* Read the write-protect configuration in the device tree */
+	wp_on = dev_read_u32_default(dev, "write-protect", wp_on);
+
 	if (ctrl->features & BRCMNAND_HAS_WP) {
 		/* Permanently disable write protection */
 		if (wp_on == 2)