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c2a5cd110c
Make the OF-compatible zImage per-board selectable. This allows the
image to only be built with the wrapper if the target actually uses it.
This fixes build-failures for the mpc85xx-p2020 subtarget.
Fixes: 557c094f0579 ("mpc85xx: only build zImage on required targets")
Signed-off-by: David Bauer <mail@david-bauer.net>
62 lines
2.1 KiB
Diff
62 lines
2.1 KiB
Diff
From b30ba76a980b3a9282f309c23e3bb0b0eb2c72cd Mon Sep 17 00:00:00 2001
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From: David Bauer <mail@david-bauer.net>
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Date: Thu, 30 May 2024 02:55:38 +0200
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Subject: [PATCH] powerpc: add compressed zImage for mpc85xx
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Add a universal zImage which can be loaded by mpc85xx boards at
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load address 0x3000000. This allows boards to boot kernels larger than
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16MB even if the image is loaded temporarily from NAND at offset
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0x1000000 which some bootloaders do by default.
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Signed-off-by: David Bauer <mail@david-bauer.net>
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---
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arch/powerpc/boot/Makefile | 1 +
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arch/powerpc/boot/wrapper | 5 +++++
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2 files changed, 6 insertions(+)
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--- a/arch/powerpc/boot/Makefile
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+++ b/arch/powerpc/boot/Makefile
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@@ -175,6 +175,7 @@ src-plat-$(CONFIG_EMBEDDED6xx) += cuboot
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src-plat-$(CONFIG_AMIGAONE) += cuboot-amigaone.c
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src-plat-$(CONFIG_PPC_PS3) += ps3-head.S ps3-hvcall.S ps3.c
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src-plat-$(CONFIG_EPAPR_BOOT) += epapr.c epapr-wrapper.c
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+src-plat-$(CONFIG_PPC_ZIMAGE_LA3000000) += fixed-head.S
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src-plat-$(CONFIG_PPC_PSERIES) += pseries-head.S
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src-plat-$(CONFIG_PPC_POWERNV) += pseries-head.S
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src-plat-$(CONFIG_PPC_IBM_CELL_BLADE) += pseries-head.S
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@@ -345,6 +346,7 @@ image-$(CONFIG_MPC836x_MDS) += cuImage.
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image-$(CONFIG_ASP834x) += dtbImage.asp834x-redboot
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# Board ports in arch/powerpc/platform/85xx/Kconfig
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+image-$(CONFIG_PPC_ZIMAGE_LA3000000) += zImage.la3000000
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image-$(CONFIG_MPC8540_ADS) += cuImage.mpc8540ads
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image-$(CONFIG_MPC8560_ADS) += cuImage.mpc8560ads
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image-$(CONFIG_MPC85xx_CDS) += cuImage.mpc8541cds \
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--- a/arch/powerpc/boot/wrapper
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+++ b/arch/powerpc/boot/wrapper
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@@ -254,6 +254,11 @@ if [ -n "$esm_blob" -a "$platform" != "p
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fi
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case "$platform" in
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+la3000000)
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+ binary=y
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+ platformo="$object/fixed-head.o $object/of.o $object/epapr.o"
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+ link_address='0x3000000'
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+ ;;
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of)
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platformo="$object/of.o $object/epapr.o"
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make_space=n
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--- a/arch/powerpc/Kconfig
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+++ b/arch/powerpc/Kconfig
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@@ -74,6 +74,10 @@ config NMI_IPI
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depends on SMP && (DEBUGGER || KEXEC_CORE || HARDLOCKUP_DETECTOR)
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default y
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+config PPC_ZIMAGE_LA3000000
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+ bool
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+ default n
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+
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config PPC_WATCHDOG
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bool
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depends on HARDLOCKUP_DETECTOR
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