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authorCédric Le Goater <clg@fr.ibm.com>2014-04-24 09:23:39 +0200
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2014-04-28 17:36:21 +1000
commit147c05168fc86e824ccd1c0a02b40843e3cbca88 (patch)
treeb11fef2a92755918913b6c630d4fdb8f64af394a /arch/powerpc/boot/crt0.S
parent2d9afb369bc069f11a3a8696c4bdf95d4ddf1281 (diff)
downloadblackbird-op-linux-147c05168fc86e824ccd1c0a02b40843e3cbca88.tar.gz
blackbird-op-linux-147c05168fc86e824ccd1c0a02b40843e3cbca88.zip
powerpc/boot: Add support for 64bit little endian wrapper
The code is only slightly modified : entry points now use the FIXUP_ENDIAN trampoline to switch endian order. The 32bit wrapper is kept for big endian kernels and 64bit is enforced for little endian kernels with a PPC64_BOOT_WRAPPER config option. The linker script is generated using the kernel preprocessor flags to make use of the CONFIG_* definitions and the wrapper script is modified to take into account the new elf64ppc format. Finally, the zImage file is compiled as a position independent executable (-pie) which makes it loadable at any address by the firmware. Signed-off-by: Cédric Le Goater <clg@fr.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/boot/crt0.S')
-rw-r--r--arch/powerpc/boot/crt0.S1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/boot/crt0.S b/arch/powerpc/boot/crt0.S
index 689290561e69..14de4f8778a7 100644
--- a/arch/powerpc/boot/crt0.S
+++ b/arch/powerpc/boot/crt0.S
@@ -275,6 +275,7 @@ prom:
rfid
1: /* Return from OF */
+ FIXUP_ENDIAN
/* Restore registers and return. */
rldicl r1,r1,0,32
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