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authorLars Povlsen <lars.povlsen@microchip.com>2020-02-06 10:45:40 +0100
committerDaniel Schwierzeck <daniel.schwierzeck@gmail.com>2020-04-09 18:55:59 +0200
commit7048bb13b2d6309ef8386fca665247d3afa36ab0 (patch)
tree236eb7433c2c06d3469b0bce455f1e569ef3095f /arch/mips/lib
parentea148789318c8152acb0a3974d4a8342dbd6b901 (diff)
mips: vcoreiii: Fix cache coherency issues
This patch fixes an stability issue seen on some vcoreiii targets, which was root caused to a cache inconsistency situation. The inconsistency was caused by having kuseg pointing to NOR area but used as a stack/gd/heap area during initialization, while only relatively late remapping the RAM area into kuseg position. The fix is to initialize the DDR right after the TLB setup, and then remapping it into position before gd/stack/heap usage. Reported-by: Ramin Seyed-Moussavi <ramin.moussavi@yacoub.de> Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com> Signed-off-by: Lars Povlsen <lars.povlsen@microchip.com>
Diffstat (limited to 'arch/mips/lib')
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