Dear All,
My SoC: Cortex-A15, TI (AM57xx)
My setup: Linux v4.9: tag v4.9-rc8
Toolchain: TI's SDK:
ti-am572x-idk-sdk/linux-devkit/sysroots/x86_64-arago-linux/usr/bin/arm-linux-gnueabihf-
I'm trying to get early print messages on UART1 (0x4806a000).
Relevant .config defines:
CONFIG_DEBUG_LL=y
CONFIG_DEBUG_LL_INCLUDE="debug/omap2plus.S"
CONFIG_EARLY_PRINTK=y
CONFIG_DEBUG_OMAP2UART1=y
've enabled debugging in the arch/arm/boot/compressed/head.S file (#define DEBUG).
Unfortunately I do have following errors:
CC arch/arm/boot/compressed/decompress.o
arch/arm/boot/compressed/head.S: Assembler messages:
arch/arm/boot/compressed/head.S:1286: Error: ARM register expected -- `sub ,r3,r1'
arch/arm/boot/compressed/head.S:1286: Error: ARM register expected -- `ldr r3,[,#0]'
arch/arm/boot/compressed/head.S:1286: Error: ARM register expected -- `ldr r1,[,#4]'
arch/arm/boot/compressed/head.S:1286: Error: ARM register expected -- `str r3,[,#0]'
arch/arm/boot/compressed/head.S:1286: Error: ARM register expected -- `str r3,[,#4]'
arch/arm/boot/compressed/head.S:1286: Error: ARM register expected -- `str r3,[,#8]'
arch/arm/boot/compressed/head.S:1286: Error: ARM register expected -- `str r3,[,#0]'
arch/arm/boot/compressed/head.S:1286: Error: ARM register expected -- `str r3,[,#4]'
arch/arm/boot/compressed/head.S:1286: Error: ARM register expected -- `str r3,[,#8]'
arch/arm/boot/compressed/head.S:1286: Error: ARM register expected -- `ldr ,[,#8]'
arch/arm/boot/compressed/head.S:1286: Error: shift expression expected -- `add r3,r3,'
arch/arm/boot/compressed/head.S:1286: Error: shift expression expected -- `add r1,r1,'
arch/arm/boot/compressed/head.S:1304: Error: ARM register expected -- `sub ,r3,r1'
arch/arm/boot/compressed/head.S:1304: Error: ARM register expected -- `ldr r3,[,#0]'
arch/arm/boot/compressed/head.S:1304: Error: ARM register expected -- `ldr r1,[,#4]'
arch/arm/boot/compressed/head.S:1304: Error: ARM register expected -- `str r3,[,#0]'
arch/arm/boot/compressed/head.S:1304: Error: ARM register expected -- `str r3,[,#4]'
arch/arm/boot/compressed/head.S:1304: Error: ARM register expected -- `str r3,[,#8]'
arch/arm/boot/compressed/head.S:1304: Error: ARM register expected -- `str r3,[,#0]'
arch/arm/boot/compressed/head.S:1304: Error: ARM register expected -- `str r3,[,#4]'
arch/arm/boot/compressed/head.S:1304: Error: ARM register expected -- `str r3,[,#8]'
arch/arm/boot/compressed/head.S:1304: Error: ARM register expected -- `ldr ,[,#8]'
arch/arm/boot/compressed/head.S:1304: Error: shift expression expected -- `add r3,r3,'
arch/arm/boot/compressed/head.S:1304: Error: shift expression expected -- `add r1,r1,'
scripts/Makefile.build:393: recipe for target 'arch/arm/boot/compressed/head.o' failed
Those are related to loadsp macro (also defined in head.S file), which
is very short:
.macro loadsp, rb, tmp
push {r7}
addruart r7, \rb, \tmp
pop {r7}
.endm
Any ideas how to fix this issue? Any hints?
I initially thought that this is compiler configuration issue - but
those errors are on many compilers (also incliding TI's SDK compiler).
Any ideas or hints how to proceed?
Best regards,
Łukasz Majewski