ipq806x: increase kernel partition size for the Netgear Nighthawk X4 R7500v2
authorStefan Lippers-Hollmann <s.l-h@gmx.de>
Fri, 18 May 2018 02:18:17 +0000 (04:18 +0200)
committerJohn Crispin <john@phrozen.org>
Thu, 24 May 2018 15:24:31 +0000 (17:24 +0200)
Starting with kernel 4.14 and gcc 7, the kernel doesn't fit into the
2 MB reserved for the kernel partition by the OEM firmware anymore.

This patch increases the kernel partition from 2 MB to 4 MB, at the
expense of the rootfs, for all supported kernels.

WARNING: This breaks sysupgrade! Flashing a firmware containing this
changed partitioning from an older image with 2 MB reserved for the
kernel partion requires the tftp recovery procedure, thereby losing
all settings.

This change follows the functional example of the Netgear r7800, but
has not been runtime tested on a Netgear Nighthawk X4 R7500v2.

Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
(cherry picked from commit c3af761e4740820a29e993414d3d2f49c7eff6e7)

target/linux/ipq806x/files-4.14/arch/arm/boot/dts/qcom-ipq8064-r7500v2.dts
target/linux/ipq806x/files-4.9/arch/arm/boot/dts/qcom-ipq8064-r7500v2.dts
target/linux/ipq806x/image/Makefile

index c4b0c4b..da0ac5b 100644 (file)
 
                                        kernel@1480000 {
                                                label = "kernel";
-                                               reg = <0x1480000 0x0200000>;
+                                               reg = <0x1480000 0x0400000>;
                                        };
 
-                                       ubi@1680000 {
+                                       ubi@1880000 {
                                                label = "ubi";
-                                               reg = <0x1680000 0x1E00000>;
+                                               reg = <0x1880000 0x1C00000>;
                                        };
 
                                        netgear@3480000 {
index c4b0c4b..da0ac5b 100644 (file)
 
                                        kernel@1480000 {
                                                label = "kernel";
-                                               reg = <0x1480000 0x0200000>;
+                                               reg = <0x1480000 0x0400000>;
                                        };
 
-                                       ubi@1680000 {
+                                       ubi@1880000 {
                                                label = "ubi";
-                                               reg = <0x1680000 0x1E00000>;
+                                               reg = <0x1880000 0x1C00000>;
                                        };
 
                                        netgear@3480000 {
index 5a1faa3..68b039b 100644 (file)
@@ -134,7 +134,7 @@ TARGET_DEVICES += netgear_r7500
 define Device/netgear_r7500v2
        $(call Device/DniImage)
        DEVICE_DTS := qcom-ipq8064-r7500v2
-       KERNEL_SIZE := 2097152
+       KERNEL_SIZE := 4194304
        NETGEAR_BOARD_ID := R7500v2
        NETGEAR_HW_ID := 29764958+0+128+512+3x3+4x4
        BLOCKSIZE := 128k