mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-27 17:18:59 +00:00
029093a302
This target has full device tree support, thus reducing the number of patches needed for bcm63xx, in which there's a patch for every board. The intention is to start with a minimal amount of downstream patches and start upstreaming all of them. Current status: - Enabling EHCI/OHCI on BCM6358 causes a kernel panic. - BCM63268 lacks Timer Clocks/Reset support. - No PCI/PCIe drivers. - No ethernet drivers. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Acked-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
35 lines
1.2 KiB
Diff
35 lines
1.2 KiB
Diff
From cf0d2fbaae9e962d91a321de75e0d4f9f9ccbdfe Mon Sep 17 00:00:00 2001
|
|
From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari@gmail.com>
|
|
Date: Thu, 21 Jan 2021 18:17:37 +0100
|
|
Subject: [PATCH] nand: brcmnand: fix OOB R/W with Hamming ECC
|
|
MIME-Version: 1.0
|
|
Content-Type: text/plain; charset=UTF-8
|
|
Content-Transfer-Encoding: 8bit
|
|
|
|
Hamming ECC doesn't cover the OOB data, so reading or writing OOB shall
|
|
always be done without ECC enabled.
|
|
This is a problem when adding JFFS2 cleanmarkers to erased blocks. When JFFS2
|
|
clenmarkers are added to the OOB with ECC enabled, OOB bytes will be changed
|
|
from ff ff ff to 00 00 00, reporting incorrect ECC errors.
|
|
|
|
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
|
|
---
|
|
drivers/mtd/nand/raw/brcmnand/brcmnand.c | 6 ++++++
|
|
1 file changed, 6 insertions(+)
|
|
|
|
--- a/drivers/mtd/nand/raw/brcmnand/brcmnand.c
|
|
+++ b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
|
|
@@ -2688,6 +2688,12 @@ static int brcmnand_attach_chip(struct n
|
|
|
|
ret = brcmstb_choose_ecc_layout(host);
|
|
|
|
+ /* If OOB is written with ECC enabled it will cause ECC errors */
|
|
+ if (is_hamming_ecc(host->ctrl, &host->hwcfg)) {
|
|
+ chip->ecc.write_oob = brcmnand_write_oob_raw;
|
|
+ chip->ecc.read_oob = brcmnand_read_oob_raw;
|
|
+ }
|
|
+
|
|
return ret;
|
|
}
|
|
|