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cdc907abed
Read back the reset register in order to flush the cache. This fixes spurious reboot hangs on TP-Link TL-WDR3600 and TL-WDR4300 with Zentel DRAM chips. This issue was fixed in the past, but switching to the reset-driver specific implementation removed the cache barrier which was previously implicitly added by reading back the register in question. Link: https://github.com/freifunk-gluon/gluon/issues/2904 Link: https://github.com/openwrt/openwrt/issues/13043 Link: https://dev.archive.openwrt.org/ticket/17839 Link: f8a7bfe1cb2c ("MIPS: ath79: fix system restart") Signed-off-by: David Bauer <mail@david-bauer.net> (cherry picked from commit 2fe8ecd880396b5ae25fe9583aaa1d71be0b8468)