Messages in this thread | | | From | arinc9.unal@gmail ... | Subject | [PATCH 0/2] nvmem: brcm_nvram: use buffered nvram data for cell values | Date | Mon, 6 Feb 2023 13:16:40 +0300 |
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Words from Willem-Jan de Hoog:
On OpenWrt 22.03.3, Asus RT-AC88U does not boot anymore:
UBI: auto-attach mtd4 ubi0: attaching mtd4 ubi0 error: 0xc04f0b3c: PEB 0 contains corrupted VID header, and the data does not contain all 0xFF ubi0 error: 0xc04f0b4c: this may be a non-UBI PEB or a severe VID header corruption which requires manual inspection
The problem seems to be that brcm_nvram_read accesses its (mapped) io memory. When doing so the correct data is read but after that the mtd/ubi process fails to work.
The bcm47xx_nvram.c code has buffered the nvram data so the cells value can be read from there.
v2: Fix the wrong author information.
Willem-Jan de Hoog (2): firmware: bcm47xx_nvram: allow to read from buffered nvram data nvmem: brcm_nvram: use bcm47xx buffered data
drivers/firmware/broadcom/bcm47xx_nvram.c | 14 ++++++++++++++ drivers/nvmem/brcm_nvram.c | 8 ++++++++ include/linux/bcm47xx_nvram.h | 6 ++++++ 3 files changed, 28 insertions(+)
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