From: Cédric Le Goater Date: Thu, 24 Apr 2014 07:23:38 +0000 (+0200) Subject: powerpc/boot: Add a global entry point for pseries X-Git-Tag: Ubuntu-5.13.0-19.19~19968^2~58 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=2d9afb369bc069f11a3a8696c4bdf95d4ddf1281;p=mirror_ubuntu-jammy-kernel.git powerpc/boot: Add a global entry point for pseries When entering the boot wrapper in little endian, we will need to fix the endian order using a fixup trampoline like in the kernel. This patch overrides the _zimage_start entry point for this purpose. Signed-off-by: Cédric Le Goater Signed-off-by: Benjamin Herrenschmidt --- diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile index a1f8c7f1ec60..bed660ddf48c 100644 --- a/arch/powerpc/boot/Makefile +++ b/arch/powerpc/boot/Makefile @@ -99,6 +99,11 @@ src-plat-$(CONFIG_EMBEDDED6xx) += cuboot-pq2.c cuboot-mpc7448hpc2.c \ src-plat-$(CONFIG_AMIGAONE) += cuboot-amigaone.c src-plat-$(CONFIG_PPC_PS3) += ps3-head.S ps3-hvcall.S ps3.c src-plat-$(CONFIG_EPAPR_BOOT) += epapr.c epapr-wrapper.c +src-plat-$(CONFIG_PPC_PSERIES) += pseries-head.S +src-plat-$(CONFIG_PPC_POWERNV) += pseries-head.S +src-plat-$(CONFIG_PPC_IBM_CELL_BLADE) += pseries-head.S +src-plat-$(CONFIG_PPC_CELLEB) += pseries-head.S +src-plat-$(CONFIG_PPC_CELL_QPACE) += pseries-head.S src-wlib := $(sort $(src-wlib-y)) src-plat := $(sort $(src-plat-y)) diff --git a/arch/powerpc/boot/pseries-head.S b/arch/powerpc/boot/pseries-head.S new file mode 100644 index 000000000000..655c3d2c321b --- /dev/null +++ b/arch/powerpc/boot/pseries-head.S @@ -0,0 +1,5 @@ + .text + + .globl _zimage_start +_zimage_start: + b _zimage_start_lib diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper index d27a25518b01..5889c440a66a 100755 --- a/arch/powerpc/boot/wrapper +++ b/arch/powerpc/boot/wrapper @@ -152,7 +152,7 @@ of) make_space=n ;; pseries) - platformo="$object/of.o $object/epapr.o" + platformo="$object/pseries-head.o $object/of.o $object/epapr.o" link_address='0x4000000' make_space=n ;;