[RFC] arm64: dts: use size of reserved partition for bl2

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From: Frank Wunderlich <frank-w@xxxxxxxxxxxxxxx>

To store uncompressed bl2 more space is required than partition is
actually defined.

Signed-off-by: Frank Wunderlich <frank-w@xxxxxxxxxxxxxxx>
---
I used the definition i got from mtk used in their SDK uboot.

Openwrt uses also the first reserved partition to give bl2 more
space:

https://git.openwrt.org/?p=openwrt/openwrt.git;a=blob;f=target/linux/mediatek/dts/mt7986a-bananapi-bpi-r3-nor.dts;h=f597b869abc80d1a73f44ebb85ad4da17376bb52;hb=HEAD#l22

so imho it should be same in mainline to not require complex bl2
compression.
---
 .../boot/dts/mediatek/mt7986a-bananapi-bpi-r3-nor.dtso     | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3-nor.dtso b/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3-nor.dtso
index 84aa229e80f3..e48881be4ed6 100644
--- a/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3-nor.dtso
+++ b/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3-nor.dtso
@@ -27,15 +27,10 @@ partitions {
 
 					partition@0 {
 						label = "bl2";
-						reg = <0x0 0x20000>;
+						reg = <0x0 0x40000>;
 						read-only;
 					};
 
-					partition@20000 {
-						label = "reserved";
-						reg = <0x20000 0x20000>;
-					};
-
 					partition@40000 {
 						label = "u-boot-env";
 						reg = <0x40000 0x40000>;
-- 
2.34.1




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