mirror of
https://github.com/openwrt/openwrt.git
synced 2025-01-27 06:39:51 +00:00
22d982ea00
On some devices the flash chip needs to be in 3-byte addressing mode during reboot, otherwise the boot loader will fail to start. This mode however does not allow regular reads/writes onto the upper 16M half. W25Q256 has separate read commands for reading from >16M, however it does not have any separate write commands. This patch changes the code to leave the chip in 3-byte mode most of the time and only switch during erase/write cycles that go to >16M addresses. Signed-off-by: Felix Fietkau <nbd@nbd.name>