On Wed, May 23, 2012 at 15:13, Simon Glass wrote:
HI Donghwa,
On Wed, May 23, 2012 at 12:39 AM, Donghwa Lee <dh09.lee@samsung.com mailto:dh09.lee@samsung.com> wrote:
Dear, Simon Glass I am preparing device tree in Exynos SoC and had already tested by using CONFIG_OF_SEPARATE. But, I couldn't test by using CONFIG_OF_EMBED because it has a compiler problem to make a binary in the dts/Makefile. When I had used configuration as seaboard that I had changed configuration from CONFIG_OF_SEPARATE to CONFIG_OF_EMBED, it had a same problem. How did you test in seaboard as it embedded? Is there any more configuration to compile ebedded option?Can you please send me the compiler output - then I can help with this.
I do use embedded for testing only. But there is an alignment patch which is needed and was NAKed. So it is not reliable at present.
please reply my question. Thank you, Donghwa LeeRegards, Simon
Dear, Simon Glass
Thank you for your reply. Below log is my compiler problem that was stopped while objcopy.
# We want the output format and arch. # We also hope to win a prize for ugliest Makefile / shell interaction # We look in the LDSCRIPT first. # Then try the linker which should give us the answer. # Then check it worked. oformat=`cat | sed -r -n 's/^OUTPUT_FORMAT[ ("]*([^")]*).*/\1/p'` ;\ oarch=`cat | sed -r -n 's/^OUTPUT_ARCH[ ("]*([^")]*).*/\1/p'` ;\ \ [ -z ${oformat} ] && \ oformat=`/opt/tools/gcc-linaro-arm-linux-gnueabi-2012.04-20120426_linux/bin/arm-linux-gnueabi-gcc -g -Os -fno-common -ffixed-r8 -msoft-float -D__KERNEL__ -DCONFIG_SYS_TEXT_BASE=0x63300000 -I/home/leedonghwa/project/mainline/u-boot-trats/include -fno-builtin -ffreestanding -nostdinc -isystem /opt/tools/gcc-linaro-arm-linux-gnueabi-2012.04-20120426_linux/bin/../lib/gcc/arm-linux-gnueabi/4.7.1/include -pipe -DCONFIG_ARM -D__ARM__ -marm -mabi=aapcs-linux -mno-thumb-interwork -march=armv5 -Wall -Wstrict-prototypes -fno-stack-protector -Wno-format-nonliteral -Wno-format-security -fstack-usage -Wl,--verbose 2>&1 | sed -r -n 's/^OUTPUT_FORMAT[ ("]*([^")]*).*/\1/p'` ;\ [ -z ${oarch} ] && \ oarch=`/opt/tools/gcc-linaro-arm-linux-gnueabi-2012.04-20120426_linux/bin/arm-linux-gnueabi-gcc -g -Os -fno-common -ffixed-r8 -msoft-float -D__KERNEL__ -DCONFIG_SYS_TEXT_BASE=0x63300000 -I/home/leedonghwa/project/mainline/u-boot-trats/include -fno-builtin -ffreestanding -nostdinc -isystem /opt/tools/gcc-linaro-arm-linux-gnueabi-2012.04-20120426_linux/bin/../lib/gcc/arm-linux-gnueabi/4.7.1/include -pipe -DCONFIG_ARM -D__ARM__ -marm -mabi=aapcs-linux -mno-thumb-interwork -march=armv5 -Wall -Wstrict-prototypes -fno-stack-protector -Wno-format-nonliteral -Wno-format-security -fstack-usage -Wl,--verbose 2>&1 | sed -r -n 's/^OUTPUT_ARCH[ ("]*([^")]*).*/\1/p'` ;\ \ [ -z ${oformat} ] && \ echo "Cannot read OUTPUT_FORMAT from lds file " && \ exit 1 || true ;\ [ -z ${oarch} ] && \ echo "Cannot read OUTPUT_ARCH from lds file " && \ exit 1 || true ;\ \ cd ./ && \ /opt/tools/gcc-linaro-arm-linux-gnueabi-2012.04-20120426_linux/bin/arm-linux-gnueabi-objcopy -I binary -O ${oformat} -B ${oarch} \ dt.dtb dt.o
And I have one more question about passing *.dtb to kernel. I had make a .dtb binary by using CONFIG_OF_SEPARATE and confirmed normally working in u-boot. When kernel is booting, how could kernel access .dtb binary? Could kernel access dtb binary by setting /memreserve/ in u-boot .dts file or by using "fdtaddrcontrol" environment variable in u-boot board file? But, by my result, dt_phys address in setup_machine_fdt() in arch/arm/devtree.c had always indicated only one point regardless of /memreserve/ or fdtcontroladdr.
Thank you, Donghwa Lee