[PATCH v2] ARM: dts: BCM5301X: Linksys EA9500 add fixed partitions
Rafał Miłecki
zajec5 at gmail.com
Mon Nov 9 12:28:38 EST 2020
On 01.11.2020 21:08, Vivek Unune wrote:
> This router has dual paritions to store trx firmware image and
> dual partitions for nvram. The second one in each of these cases acts
> as a backup store.
I'm quite sure CFE is supposed to flash new firmware to the backup
partition and then mark it as main one. The old firmware partition becomes a
new backup then.
That means you need to check which partition bootloader used to handle
partitioning properly.
> + partition at 200000 {
> + label = "firmware";
> + reg = <0x0200000 0x01D00000>;
> + compatible = "brcm,trx";
> + };
> +
> + partition at 1F00000 {
> + label = "failsafe";
> + reg = <0x01F00000 0x01D00000>;
> + read-only;
> + };
Here you assume CFE always boots from the first firmware partition.
Unless EA9500 CFE does sth stupid it seems like a 50% - 50% guess.
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