[PATCH] configs: set CONFIG_LMB_MAX_REGIONS=64 for MT7988 boards

Daniel Golle daniel at makrotopia.org
Mon Aug 21 21:38:23 CEST 2023


Similar to MT7981 and MT7986 also MT7988 can have a high number of
reserved-memory regions used by the various hardware offloading
subsystems.

Raise CONFIG_LMB_MAX_REGIONS to 64 to avoid errors when trying to boot
Linux with more then 6 reserved regions:

ERROR: reserving fdt memory region failed (addr=4f700000 size=240000 flags=4)
ERROR: reserving fdt memory region failed (addr=15194000 size=1000 flags=4)
ERROR: reserving fdt memory region failed (addr=15294000 size=1000 flags=4)
ERROR: reserving fdt memory region failed (addr=15394000 size=1000 flags=4)
ERROR: Failed to allocate 0xb161 bytes below 0x80000000.
device tree - allocation error

Fixes: bc4adc97cfb ("board: mediatek: add MT7988 reference boards")
Reported-by: Lorenzo Bianconi <lorenzo at kernel.org>
Signed-off-by: Daniel Golle <daniel at makrotopia.org>
---
 configs/mt7988_rfb_defconfig    | 1 +
 configs/mt7988_sd_rfb_defconfig | 1 +
 2 files changed, 2 insertions(+)

diff --git a/configs/mt7988_rfb_defconfig b/configs/mt7988_rfb_defconfig
index dc97bb36ea..ced52edecf 100644
--- a/configs/mt7988_rfb_defconfig
+++ b/configs/mt7988_rfb_defconfig
@@ -81,3 +81,4 @@ CONFIG_MTK_SPIM=y
 CONFIG_LZO=y
 CONFIG_HEXDUMP=y
 # CONFIG_EFI_LOADER is not set
+CONFIG_LMB_MAX_REGIONS=64
diff --git a/configs/mt7988_sd_rfb_defconfig b/configs/mt7988_sd_rfb_defconfig
index 421999da86..670f5eae18 100644
--- a/configs/mt7988_sd_rfb_defconfig
+++ b/configs/mt7988_sd_rfb_defconfig
@@ -69,3 +69,4 @@ CONFIG_MTK_SPIM=y
 CONFIG_LZO=y
 CONFIG_HEXDUMP=y
 # CONFIG_EFI_LOADER is not set
+CONFIG_LMB_MAX_REGIONS=64
-- 
2.41.0


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