diff options
Diffstat (limited to 'target/linux/generic/backport-5.10/812-v6.2-0002-nvmem-stm32-add-warning-when-upper-OTPs-are-updated.patch')
-rw-r--r-- | target/linux/generic/backport-5.10/812-v6.2-0002-nvmem-stm32-add-warning-when-upper-OTPs-are-updated.patch | 34 |
1 files changed, 0 insertions, 34 deletions
diff --git a/target/linux/generic/backport-5.10/812-v6.2-0002-nvmem-stm32-add-warning-when-upper-OTPs-are-updated.patch b/target/linux/generic/backport-5.10/812-v6.2-0002-nvmem-stm32-add-warning-when-upper-OTPs-are-updated.patch deleted file mode 100644 index 5791df2606..0000000000 --- a/target/linux/generic/backport-5.10/812-v6.2-0002-nvmem-stm32-add-warning-when-upper-OTPs-are-updated.patch +++ /dev/null @@ -1,34 +0,0 @@ -From d61784e6410f3df2028e6eb91b06ffed37a660e0 Mon Sep 17 00:00:00 2001 -From: Patrick Delaunay <patrick.delaunay@foss.st.com> -Date: Fri, 18 Nov 2022 06:39:21 +0000 -Subject: [PATCH] nvmem: stm32: add warning when upper OTPs are updated - -As the upper OTPs are ECC protected, they support only one 32 bits word -programming. -For a second modification of this word, these ECC become invalid and -this OTP will be no more accessible, the shadowed value is invalid. - -This patch adds a warning to indicate an upper OTP update, because this -operation is dangerous as OTP is not locked by the driver after the first -update to avoid a second update. - -Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com> -Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> -Link: https://lore.kernel.org/r/20221118063932.6418-3-srinivas.kandagatla@linaro.org -Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> ---- - drivers/nvmem/stm32-romem.c | 3 +++ - 1 file changed, 3 insertions(+) - ---- a/drivers/nvmem/stm32-romem.c -+++ b/drivers/nvmem/stm32-romem.c -@@ -132,6 +132,9 @@ static int stm32_bsec_write(void *contex - } - } - -+ if (offset + bytes >= priv->lower * 4) -+ dev_warn(dev, "Update of upper OTPs with ECC protection (word programming, only once)\n"); -+ - return 0; - } - |