mpc85xx: add compressed zImage for mpc85xx

Add a universal zImage which can be loaded by mpc85xx boards at
load address 0x3000000. This allows boards to boot kernels larger than
16MB even if the image is loaded temporarily from NAND at offset
0x1000000 which some bootloaders do by default.

Signed-off-by: David Bauer <mail@david-bauer.net>

diff --git a/target/linux/mpc85xx/p1020/target.mk b/target/linux/mpc85xx/p1020/target.mk
index 27873b01c9e172eedc74480a1b9be266b46b851f..498d8981a10f92a0e66b8474e850b48b143941fd 100644 (file)
--- a/target/linux/mpc85xx/p1020/target.mk
+++ b/target/linux/mpc85xx/p1020/target.mk
@@ -1,5 +1,5 @@
 BOARDNAME:=P1020
-KERNEL_IMAGES:=simpleImage.ws-ap3710i simpleImage.ws-ap3825i simpleImage.hiveap-330
+KERNEL_IMAGES:=simpleImage.ws-ap3710i simpleImage.ws-ap3825i simpleImage.hiveap-330 zImage.la3000000
 
 define Target/Description
        Build firmware images for Freescale P1020 based boards.

diff --git a/target/linux/mpc85xx/patches-6.1/010-powerpc-add-compressed-zImage-for-mpc85xx.patch b/target/linux/mpc85xx/patches-6.1/010-powerpc-add-compressed-zImage-for-mpc85xx.patch
new file mode 100644 (file)
index 0000000..edf541a
--- /dev/null
+++ b/target/linux/mpc85xx/patches-6.1/010-powerpc-add-compressed-zImage-for-mpc85xx.patch
@@ -0,0 +1,40 @@
+From b30ba76a980b3a9282f309c23e3bb0b0eb2c72cd Mon Sep 17 00:00:00 2001
+From: David Bauer <mail@david-bauer.net>
+Date: Thu, 30 May 2024 02:55:38 +0200
+Subject: [PATCH] powerpc: add compressed zImage for mpc85xx
+
+Add a universal zImage which can be loaded by mpc85xx boards at
+load address 0x3000000. This allows boards to boot kernels larger than
+16MB even if the image is loaded temporarily from NAND at offset
+0x1000000 which some bootloaders do by default.
+
+Signed-off-by: David Bauer <mail@david-bauer.net>
+---
+ arch/powerpc/boot/Makefile | 1 +
+ arch/powerpc/boot/wrapper  | 5 +++++
+ 2 files changed, 6 insertions(+)
+
+--- a/arch/powerpc/boot/Makefile
++++ b/arch/powerpc/boot/Makefile
+@@ -345,6 +345,7 @@ image-$(CONFIG_MPC836x_MDS)                += cuImage.
+ image-$(CONFIG_ASP834x)                       += dtbImage.asp834x-redboot
+ 
+ # Board ports in arch/powerpc/platform/85xx/Kconfig
++image-y                                       += zImage.la3000000
+ image-$(CONFIG_MPC8540_ADS)           += cuImage.mpc8540ads
+ image-$(CONFIG_MPC8560_ADS)           += cuImage.mpc8560ads
+ image-$(CONFIG_MPC85xx_CDS)           += cuImage.mpc8541cds \
+--- a/arch/powerpc/boot/wrapper
++++ b/arch/powerpc/boot/wrapper
+@@ -254,6 +254,11 @@ if [ -n "$esm_blob" -a "$platform" != "p
+ fi
+ 
+ case "$platform" in
++la3000000)
++    binary=y
++    platformo="$object/fixed-head.o $object/of.o $object/epapr.o"
++    link_address='0x3000000'
++    ;;
+ of)
+     platformo="$object/of.o $object/epapr.o"
+     make_space=n

diff --git a/target/linux/mpc85xx/patches-6.6/010-powerpc-add-compressed-zImage-for-mpc85xx.patch b/target/linux/mpc85xx/patches-6.6/010-powerpc-add-compressed-zImage-for-mpc85xx.patch
new file mode 100644 (file)
index 0000000..edf541a
--- /dev/null
+++ b/target/linux/mpc85xx/patches-6.6/010-powerpc-add-compressed-zImage-for-mpc85xx.patch
@@ -0,0 +1,40 @@
+From b30ba76a980b3a9282f309c23e3bb0b0eb2c72cd Mon Sep 17 00:00:00 2001
+From: David Bauer <mail@david-bauer.net>
+Date: Thu, 30 May 2024 02:55:38 +0200
+Subject: [PATCH] powerpc: add compressed zImage for mpc85xx
+
+Add a universal zImage which can be loaded by mpc85xx boards at
+load address 0x3000000. This allows boards to boot kernels larger than
+16MB even if the image is loaded temporarily from NAND at offset
+0x1000000 which some bootloaders do by default.
+
+Signed-off-by: David Bauer <mail@david-bauer.net>
+---
+ arch/powerpc/boot/Makefile | 1 +
+ arch/powerpc/boot/wrapper  | 5 +++++
+ 2 files changed, 6 insertions(+)
+
+--- a/arch/powerpc/boot/Makefile
++++ b/arch/powerpc/boot/Makefile
+@@ -345,6 +345,7 @@ image-$(CONFIG_MPC836x_MDS)                += cuImage.
+ image-$(CONFIG_ASP834x)                       += dtbImage.asp834x-redboot
+ 
+ # Board ports in arch/powerpc/platform/85xx/Kconfig
++image-y                                       += zImage.la3000000
+ image-$(CONFIG_MPC8540_ADS)           += cuImage.mpc8540ads
+ image-$(CONFIG_MPC8560_ADS)           += cuImage.mpc8560ads
+ image-$(CONFIG_MPC85xx_CDS)           += cuImage.mpc8541cds \
+--- a/arch/powerpc/boot/wrapper
++++ b/arch/powerpc/boot/wrapper
+@@ -254,6 +254,11 @@ if [ -n "$esm_blob" -a "$platform" != "p
+ fi
+ 
+ case "$platform" in
++la3000000)
++    binary=y
++    platformo="$object/fixed-head.o $object/of.o $object/epapr.o"
++    link_address='0x3000000'
++    ;;
+ of)
+     platformo="$object/of.o $object/epapr.o"
+     make_space=n