openwrt/target/linux/ramips/patches-5.10/201-MIPS-ralink-rt288x-select-MIPS_AUTO_PFN_OFFSET.patch
Ilya Lipnitskiy 5f07c579f8 ramips: rt288x: replace hack with a kconfig change
Use an existing kernel config symbol to fix devices whose ramstart is
not zero. See upstream patch message for more details.

Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
Cc: Tobias Wolf <dev-NTEO@vplace.de>
Cc: Daniel Golle <daniel@makrotopia.org>
2021-04-15 00:00:54 +08:00

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Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
Date: Sat, 3 Apr 2021 18:51:44 -0700
Subject: [PATCH] MIPS: ralink: rt288x: select MIPS_AUTO_PFN_OFFSET
RT288X systems may have a non-zero ramstart causing problems with memory
reservations and boot hangs, as well as messages like:
Wasting 1048576 bytes for tracking 32768 unused pages
Both are alleviated by selecting MIPS_AUTO_PFN_OFFSET for such
platforms.
Tested on a Belkin F5D8235 v1 RT2880 device.
Link: https://lore.kernel.org/linux-mips/20180820233111.xww5232dxbuouf4n@pburton-laptop/
Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
Cc: Mike Rapoport <rppt@kernel.org>
---
arch/mips/ralink/Kconfig | 1 +
1 file changed, 1 insertion(+)
--- a/arch/mips/ralink/Kconfig
+++ b/arch/mips/ralink/Kconfig
@@ -26,6 +26,7 @@ choice
config SOC_RT288X
bool "RT288x"
+ select MIPS_AUTO_PFN_OFFSET
select MIPS_L1_CACHE_SHIFT_4
select HAVE_LEGACY_CLK
select HAVE_PCI