Hi,
I am adding support for a MPcore SoC in Uboot. For that secondary cores
need to execute WFI (wait for interrupt) instruction.
But while building the source I am getting the following error:
arm-none-eabi-gcc -D__ASSEMBLY__ -g -Os -fno-common -ffixed-r8
-msoft-float -D__KERNEL__ -DCONFIG_SYS_TEXT_BASE=0x60800000
-I/media/disk/work/u-boot_ct11mpc_osi_evs/include -fno-builtin
-ffreestanding -nostdinc -isystem
/home/sandeepk/CodeSourcery/Sourcery_G++_Lite/bin/../lib/gcc/arm-none-ea
bi/4.5.2/include -pipe -DCONFIG_ARM -D__ARM__ -marm -mabi=aapcs-linux
-mno-thumb-interwork -march=armv5 -o lowlevel_init.o lowlevel_init.S
-c
lowlevel_init.S: Assembler messages:
lowlevel_init.S:92: Error: missing expression -- `swi'
make[1]: *** [lowlevel_init.o] Error 1
make[1]: Leaving directory
`/media/disk/work/u-boot_ct11mpc_osi_evs/board/armltd/versatile_11mpc'
make: *** [board/armltd/versatile_11mpc/libversatile_11mpc.o] Error 2
How can I implement this instruction or how can I directly insert the
hex code for this instruction.
Regards,
Sandeep
On 22/09/11 10:17, Sandeep Kumar wrote:
Hi,
I am adding support for a MPcore SoC in Uboot. For that secondary cores
need to execute WFI (wait for interrupt) instruction.
But while building the source I am getting the following error:
arm-none-eabi-gcc -D__ASSEMBLY__ -g -Os -fno-common -ffixed-r8
-msoft-float -D__KERNEL__ -DCONFIG_SYS_TEXT_BASE=0x60800000
-I/media/disk/work/u-boot_ct11mpc_osi_evs/include -fno-builtin
-ffreestanding -nostdinc -isystem
/home/sandeepk/CodeSourcery/Sourcery_G++_Lite/bin/../lib/gcc/arm-none-ea
bi/4.5.2/include -pipe -DCONFIG_ARM -D__ARM__ -marm -mabi=aapcs-linux
-mno-thumb-interwork -march=armv5 -o lowlevel_init.o lowlevel_init.S
-c
lowlevel_init.S: Assembler messages:
lowlevel_init.S:92: Error: missing expression -- `swi'
I'm not sure this is a u-boot question and you didn't show your code (I assume
you changed the file).
'swi' is not a WFI. swi takes a expression - the software interrupt number you
want to pass to the software interrupt exception routine. Your routine is free
to ignore that number, but a 'swi' must have one to have the correct syntax.
WFI on ARM SoC's is usually some kind of register write, specific to that SoC.
Nick.
make[1]: *** [lowlevel_init.o] Error 1
make[1]: Leaving directory
`/media/disk/work/u-boot_ct11mpc_osi_evs/board/armltd/versatile_11mpc'
make: *** [board/armltd/versatile_11mpc/libversatile_11mpc.o] Error 2
How can I implement this instruction or how can I directly insert the
hex code for this instruction.
Regards,
Sandeep
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U-Boot at lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot
Hi Sandeep,
On Thursday 22 September 2011 02:47 PM, Sandeep Kumar wrote:
Hi,
I am adding support for a MPcore SoC in Uboot. For that secondary cores
need to execute WFI (wait for interrupt) instruction.
But while building the source I am getting the following error:
arm-none-eabi-gcc -D__ASSEMBLY__ -g -Os -fno-common -ffixed-r8
-msoft-float -D__KERNEL__ -DCONFIG_SYS_TEXT_BASE=0x60800000
-I/media/disk/work/u-boot_ct11mpc_osi_evs/include -fno-builtin
-ffreestanding -nostdinc -isystem
/home/sandeepk/CodeSourcery/Sourcery_G++_Lite/bin/../lib/gcc/arm-none-ea
bi/4.5.2/include -pipe -DCONFIG_ARM -D__ARM__ -marm -mabi=aapcs-linux
-mno-thumb-interwork -march=armv5 -o lowlevel_init.o lowlevel_init.S
-c
lowlevel_init.S: Assembler messages:
lowlevel_init.S:92: Error: missing expression -- `swi'
Are you trying to use WFI or SWI?
make[1]: *** [lowlevel_init.o] Error 1
make[1]: Leaving directory
`/media/disk/work/u-boot_ct11mpc_osi_evs/board/armltd/versatile_11mpc'
make: *** [board/armltd/versatile_11mpc/libversatile_11mpc.o] Error 2
How can I implement this instruction or how can I directly insert the
hex code for this instruction.
A '.word' directive with the hex value of the instruction should work.
See this:
http://thread.gmane.org/gmane.comp.boot-loaders.u-boot/88649/focus=88667
br,
Aneesh
Regards,
Sandeep
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