[U-Boot] [PATCH 09/18] drivers: nand: brcmnand: add an option to read the write-protect from device tree
Philippe Reynes
philippe.reynes at softathome.com
Fri Mar 15 14:14:38 UTC 2019
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 at softathome.com>
---
drivers/mtd/nand/raw/brcmnand/brcmnand.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/mtd/nand/raw/brcmnand/brcmnand.c b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
index e333320..faa6da4 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)
--
2.7.4
More information about the U-Boot
mailing list