[Buildroot] Adding Microblaze support to Buildroot

[Buildroot] Adding Microblaze support to Buildroot

[Spenser Gilliland]

Hi, I'm trying to add the Microblaze arch to buildroot.  However, I'm
having some issues.  The following error comes up when building the
intermediate compiler.

zh_HK.utf8
zh_SG.utf8
zh_TW.utf8
zu_ZA.utf8
/usr/bin/make -j1 -C
/home/spenser/Research/buildroot/buildroot/output/toolchain/uClibc \
         ARCH="microblaze" \

PREFIX=/home/spenser/Research/buildroot/buildroot/output/toolchain/uClibc_dev/
\
         DEVEL_PREFIX=/usr/ \

RUNTIME_PREFIX=/home/spenser/Research/buildroot/buildroot/output/toolchain/uClibc_dev/
\
         HOSTCC="/usr/bin/gcc" headers \
         lib/crt1.o lib/crti.o lib/crtn.o \
         install_headers
make[1]: Entering directory
`/home/spenser/Research/buildroot/buildroot/output/toolchain/uClibc'
make[1]: Nothing to be done for `headers'.
make[1]: `lib/crt1.o' is up to date.
make[1]: `lib/crti.o' is up to date.
make[1]: `lib/crtn.o' is up to date.
   INSTALL include ->
/home/spenser/Research/buildroot/buildroot/output/toolchain/uClibc_dev//usr/include
unifdef: can't open include/bits/semaphore.h: No such file or directory
unifdef: can't open include/bits/pthreadtypes.h: No such file or directory
make[1]: Leaving directory
`/home/spenser/Research/buildroot/buildroot/output/toolchain/uClibc'
# Install the kernel headers to the first stage gcc include dir
# if necessary
if [ ! -f
/home/spenser/Research/buildroot/buildroot/output/toolchain/uClibc_dev/usr/include/linux/version.h
]; then \
         cp -pLR
/home/spenser/Research/buildroot/buildroot/output/toolchain/linux/include/*
\

/home/spenser/Research/buildroot/buildroot/output/toolchain/uClibc_dev/usr/include/;
\
     fi
/home/spenser/Research/buildroot/buildroot/output/host/usr/bin/microblaze-unknown-linux-uclibc-gcc
-nostdlib -nostartfiles -shared -x c /dev/null -o
/home/spenser/Research/buildroot/buildroot/output/toolchain/uClibc_dev/usr/lib/libc.so
/tmp/ccU2bXNp.o: could not read symbols: No error
collect2: ld returned 1 exit status
make: ***
[/home/spenser/Research/buildroot/buildroot/output/toolchain/uClibc/.configured]
Error 1

The part which states "could not read symbols: No error" leaves me with
very little idea on how to proceed.

Additionally, the missing semaphore.h and pthreadtypes.h could be
related.  Which component provides these files and how do I ensure they
are installed correctly.

My changes are available at  git://github.com/Spenser309/buildroot.git

Thanks,
Spenser

-- 
Spenser Gilliland
Illinois Institute of Technology
Computer Engineering

[Buildroot] Adding Microblaze support to Buildroot

[Stephan Hoffmann]

Am 10.11.2011 23:55, schrieb Spenser Gilliland:
> Hi, I'm trying to add the Microblaze arch to buildroot.
Hello Spenser,

I am also working on Microblaze, but did not try to build a toolchain
yet. There is some information on this on the internet, especially here:
http://www.monstr.eu/. There are lots of patches for the toolchain and I
don't know how complete the Bicroblaze support in the original gcc is.

Instead I use the glibc toolchain provided by Xilinx and the u-boot
provided by Avnet for my Avnet Spartan 6 LX9 MicroBoard.

I made a small patch adding the config options and default
configurations for buildroot and the kernel. The modifications I made
are inspired by prior work I found at some places in the web. I am also
planning to publish my microblaze configuration, but this is still work
in progress.

Originally, I tried to build a nommu configuration because my FPGA is
very small and I wanted to save space. This did not work because the
toolchain for FLT binaries that I found on the net did not harmonize
with the kernel, the kernel was not able to load the binaries. Finally,
I suspended this because of lack of time. If your efforts to buils a
toolchain succeed this approach might get interesting again. Xilinx
supports only the mmu configuration for Linux.

Regarding the Linux kernel recent versions (3.x) work more or less out
of the box after providing a valid device tree file matching the
Microblaze configuration.

Kind regards

Stephan
>
> My changes are available at  git://github.com/Spenser309/buildroot.git
>
> Thanks,
> Spenser
>

From: Stephan Hoffmann <sho@relinux.de>
Date: Mon, 31 Oct 2011 14:15:55 +0100
Subject: [PATCH] Added support for MicroBlaze soft cpu
Signed-off-by: Stephan Hoffmann <sho@relinux.de>

---
 board/relinux/s6lx9microboard/s6lx9_mmu_defconfig |   67
+++++++++++++++++++++
 configs/spartan6lx9_mb_defconfig                  |   21 +++++++
 linux/Config.in                                   |    5 ++
 linux/linux.mk                                    |    8 +++
 target/Config.in.arch                             |    6 ++-
 5 files changed, 106 insertions(+), 1 deletions(-)
 create mode 100644 board/relinux/s6lx9microboard/s6lx9_mmu_defconfig
 create mode 100644 configs/spartan6lx9_mb_defconfig

diff --git a/board/relinux/s6lx9microboard/s6lx9_mmu_defconfig
b/board/relinux/s6lx9microboard/s6lx9_mmu_defconfig
new file mode 100644
index 0000000..ef398de
--- /dev/null
+++ b/board/relinux/s6lx9microboard/s6lx9_mmu_defconfig
@@ -0,0 +1,67 @@
+CONFIG_EXPERIMENTAL=y
+CONFIG_SYSVIPC=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_INITRAMFS_SOURCE="rootfs.cpio"
+CONFIG_INITRAMFS_COMPRESSION_GZIP=y
+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
+CONFIG_EXPERT=y
+CONFIG_KALLSYMS_ALL=y
+CONFIG_KALLSYMS_EXTRA_PASS=y
+# CONFIG_HOTPLUG is not set
+# CONFIG_BASE_FULL is not set
+# CONFIG_FUTEX is not set
+# CONFIG_EPOLL is not set
+# CONFIG_SIGNALFD is not set
+# CONFIG_SHMEM is not set
+CONFIG_SLAB=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+# CONFIG_BLK_DEV_BSG is not set
+CONFIG_KERNEL_BASE_ADDR=0x80000000
+CONFIG_XILINX_MICROBLAZE0_FAMILY="spartan6"
+CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR=1
+CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR=1
+CONFIG_XILINX_MICROBLAZE0_USE_BARREL=1
+CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL=1
+CONFIG_XILINX_MICROBLAZE0_HW_VER="8.20.a"
+CONFIG_HZ_100=y
+CONFIG_MMU=y
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE_FORCE=y
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+# CONFIG_INET_LRO is not set
+# CONFIG_IPV6 is not set
+CONFIG_PROC_DEVICETREE=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_SIZE=8192
+CONFIG_NETDEVICES=y
+CONFIG_NET_ETHERNET=y
+CONFIG_XILINX_EMACLITE=y
+# CONFIG_INPUT is not set
+# CONFIG_SERIO is not set
+# CONFIG_VT is not set
+CONFIG_SERIAL_UARTLITE=y
+CONFIG_SERIAL_UARTLITE_CONSOLE=y
+# CONFIG_HW_RANDOM is not set
+# CONFIG_HWMON is not set
+# CONFIG_USB_SUPPORT is not set
+CONFIG_EXT2_FS=y
+# CONFIG_DNOTIFY is not set
+CONFIG_NFS_FS=y
+CONFIG_NFS_V3=y
+CONFIG_CIFS=y
+CONFIG_CIFS_STATS=y
+CONFIG_CIFS_STATS2=y
+CONFIG_PARTITION_ADVANCED=y
+CONFIG_DEBUG_KERNEL=y
+CONFIG_DETECT_HUNG_TASK=y
+CONFIG_DEBUG_SLAB=y
+CONFIG_DEBUG_SPINLOCK=y
+CONFIG_DEBUG_INFO=y
+CONFIG_EARLY_PRINTK=y
+# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/configs/spartan6lx9_mb_defconfig
b/configs/spartan6lx9_mb_defconfig
new file mode 100644
index 0000000..150ad88
--- /dev/null
+++ b/configs/spartan6lx9_mb_defconfig
@@ -0,0 +1,21 @@
+BR2_microblaze=y
+BR2_JLEVEL=4
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_PATH="/opt/microblazeel-unknown-linux-gnu/"
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX="microblazeel-unknown-linux-gnu"
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
+BR2_TARGET_GENERIC_HOSTNAME="Microblaze Buildroot"
+BR2_TARGET_GENERIC_ISSUE="Welcome to Microblaze Buildroot"
+BR2_TARGET_GENERIC_GETTY_PORT="ttyUL0"
+# BR2_TARGET_ROOTFS_TAR is not set
+BR2_TARGET_ROOTFS_INITRAMFS=y
+BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_CUSTOM_VERSION=y
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="3.0.7"
+BR2_LINUX_KERNEL_VERSION="3.0.7"
+BR2_LINUX_KERNEL_PATCH="http://www.kernel.org/pub/linux/kernel/projects/rt/3.0/patch-3.0.7-rt20.patch"
+BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
+BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(TOPDIR)/board/relinux/s6lx9microboard/s6lx9_mmu_defconfig"
+BR2_LINUX_KERNEL_IMAGE_TARGET_CUSTOM=y
+BR2_LINUX_KERNEL_IMAGE_TARGET_NAME="simpleImage.xilinx"
diff --git a/linux/Config.in b/linux/Config.in
index 0082ca8..358747d 100644
--- a/linux/Config.in
+++ b/linux/Config.in
@@ -121,6 +121,11 @@ config BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE
        help
          Path to the kernel configuration file
 
+config BR2_LINUX_KERNEL_DTS_FILE
+       string "Device Tree dts file location"
+       depends on BR2_microblaze
+       help
+         Path from where the dts file has to be copied
 #
 # Binary format
 #
diff --git a/linux/linux.mk b/linux/linux.mk
index 9beb706..690d9f4 100644
--- a/linux/linux.mk
+++ b/linux/linux.mk
@@ -117,6 +117,14 @@ endef
 
 LINUX_POST_PATCH_HOOKS += LINUX_APPLY_PATCHES
 
+ifeq ($(KERNEL_ARCH),microblaze)
+define LINUX_COPY_DTS
+       if test -f "$(BR2_LINUX_KERNEL_DTS_FILE)" ; then \
+               cp $(BR2_LINUX_KERNEL_DTS_FILE)
$(@D)/arch/microblaze/boot/dts ; \
+       fi
+endef
+LINUX_POST_PATCH_HOOKS += LINUX_COPY_DTS
+endif
 
 ifeq ($(BR2_LINUX_KERNEL_USE_DEFCONFIG),y)
 KERNEL_SOURCE_CONFIG = $(KERNEL_ARCH_PATH)/configs/$(call
qstrip,$(BR2_LINUX_KERNEL_DEFCONFIG))_defconfig
diff --git a/target/Config.in.arch b/target/Config.in.arch
index 5e9fad4..24edfa5 100644
--- a/target/Config.in.arch
+++ b/target/Config.in.arch
@@ -21,6 +21,8 @@ config BR2_i386
 config BR2_m68k
        bool "m68k"
        depends on BROKEN # ice in uclibc / inet_ntoa_r
+config BR2_microblaze
+       bool "microblaze"
 config BR2_mips
        bool "mips"
 config BR2_mipsel
@@ -490,6 +492,7 @@ config BR2_ARCH
        default "i686"          if BR2_x86_athlon
        default "i686"          if BR2_x86_athlon_4
        default "m68k"          if BR2_m68k
+       default "microblaze"    if BR2_microblaze
        default "mips"          if BR2_mips
        default "mipsel"        if BR2_mipsel
        default "powerpc"       if BR2_powerpc
@@ -515,7 +518,7 @@ config BR2_ARCH
 
 config BR2_ENDIAN
        string
-       default "LITTLE" if BR2_arm || BR2_bfin || BR2_i386 ||
BR2_mipsel || \
+       default "LITTLE" if BR2_arm || BR2_bfin || BR2_i386 ||
BR2_mipsel || BR2_microblaze || \
                            BR2_sh3 || BR2_sh4 || BR2_sh4a || BR2_x86_64
|| BR2_sh64
        default "BIG"    if BR2_armeb || BR2_avr32 || BR2_m68k ||
BR2_mips || \
                            BR2_powerpc || BR2_sh2 || BR2_sh2a || \
@@ -580,6 +583,7 @@ config BR2_GCC_TARGET_TUNE
        default 68030           if BR2_m68k_68030
        default 68040           if BR2_m68k_68040
        default 68060           if BR2_m68k_68060
+       default microblaze      if BR2_microblaze
        default mips1           if BR2_mips_1
        default mips2           if BR2_mips_2
        default mips3           if BR2_mips_3
-- 
1.7.0.4


-- 
reLinux     -    Stephan Hoffmann
Am Schmidtgrund 124    50765 K?ln
Tel. +49.221.95595-19    Fax: -64
www.reLinux.de     sho at reLinux.de

[Buildroot] Adding Microblaze support to Buildroot

[Stephan Hoffmann]

Am 11.11.2011 13:45, schrieb Stephan Hoffmann:
> Am 10.11.2011 23:55, schrieb Spenser Gilliland:
>> Hi, I'm trying to add the Microblaze arch to buildroot.
> Hello Spenser,
>
> I am also working on Microblaze, but did not try to build a toolchain
> yet. There is some information on this on the internet, especially here:
> http://www.monstr.eu/. There are lots of patches for the toolchain and I
> don't know how complete the Microblaze support in the original gcc is.
Hello Spenser,

did you have any success in building the toolchain in the meantime?

Hello all,

is there an interest in adding the Microblaze architecture to buildroot?

And, if it is, would it be acceptable to rely on toolchain and/or
bootloader coming from the board vendor or Xilinx, at least for some time?

Kind regards

Stephan

-- 
reLinux     -    Stephan Hoffmann
Am Schmidtgrund 124    50765 K?ln
Tel. +49.221.95595-19    Fax: -64
www.reLinux.de     sho at reLinux.de

[Buildroot] Adding Microblaze support to Buildroot

[Thomas Petazzoni]

Le Tue, 22 Nov 2011 09:52:24 +0100,
Stephan Hoffmann <sho@relinux.de> a ?crit :

> is there an interest in adding the Microblaze architecture to
> buildroot?

Definitely, yes.

> And, if it is, would it be acceptable to rely on toolchain and/or
> bootloader coming from the board vendor or Xilinx, at least for some
> time?

Yes. It is possible to use the external toolchain mechanism. For
example, the Blackfin support relies on an external toolchain provided
by ADI, I'm not sure the internal Buildroot code to build a toolchain
works for Blackfin. So doing the same for Microblaze seems reasonable.

Regards,

Thomas
-- 
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com

[Buildroot] Adding Microblaze support to Buildroot

[Spenser Gilliland]

I've been trying to get the buildroot to work but I have been
stonewalled by the following error.  Not quite sure where to go from
here.  Anyone have some input?

  INSTALL include ->
/home/spenser/Research/buildroot/buildroot/output/toolchain/uClibc_dev//usr/include
make[1]: Leaving directory
`/home/spenser/Research/buildroot/buildroot/output/toolchain/uClibc'
# Install the kernel headers to the first stage gcc include dir
# if necessary
if [ ! -f /home/spenser/Research/buildroot/buildroot/output/toolchain/uClibc_dev/usr/include/linux/version.h
]; then \
		cp -pLR /home/spenser/Research/buildroot/buildroot/output/toolchain/linux/include/*
\
			/home/spenser/Research/buildroot/buildroot/output/toolchain/uClibc_dev/usr/include/;
\
	fi
/home/spenser/Research/buildroot/buildroot/output/host/usr/bin/microblaze-unknown-linux-uclibc-gcc
-nostdlib -nostartfiles -shared -x c /dev/null -o
/home/spenser/Research/buildroot/buildroot/output/toolchain/uClibc_dev/usr/lib/libc.so
/tmp/cceEeb5C.o: could not read symbols: No error
collect2: ld returned 1 exit status
make: *** [/home/spenser/Research/buildroot/buildroot/output/toolchain/uClibc/.configured]
Error 1




Spenser



On Tue, Nov 22, 2011 at 2:58 AM, Thomas Petazzoni
<thomas.petazzoni@free-electrons.com> wrote:
> Le Tue, 22 Nov 2011 09:52:24 +0100,
> Stephan Hoffmann <sho@relinux.de> a ?crit :
>
>> is there an interest in adding the Microblaze architecture to
>> buildroot?
>
> Definitely, yes.
>
>> And, if it is, would it be acceptable to rely on toolchain and/or
>> bootloader coming from the board vendor or Xilinx, at least for some
>> time?
>
> Yes. It is possible to use the external toolchain mechanism. For
> example, the Blackfin support relies on an external toolchain provided
> by ADI, I'm not sure the internal Buildroot code to build a toolchain
> works for Blackfin. So doing the same for Microblaze seems reasonable.
>
> Regards,
>
> Thomas
> --
> Thomas Petazzoni, Free Electrons
> Kernel, drivers, real-time and embedded Linux
> development, consulting, training and support.
> http://free-electrons.com
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot



-- 
Spenser Gilliland
Computer Engineer
Illinois Institute of Technology

[Buildroot] Adding Microblaze support to Buildroot

[Peter Korsgaard]

>>>>> "Stephan" == Stephan Hoffmann <sho@relinux.de> writes:

 Stephan> Hello all,

 Stephan> is there an interest in adding the Microblaze architecture to
 Stephan> buildroot?

Yes, I would say so.

 Stephan> And, if it is, would it be acceptable to rely on toolchain
 Stephan> and/or bootloader coming from the board vendor or Xilinx, at
 Stephan> least for some time?

We're doing that already for avr32, so that's not really a big
problem. I'm more worrying about how much we need to patch individual
packages to work on microblaze. In the past we had quite some avr32
patches, which made it harder to move to newer versions and added extra
complexity to BR.

But as long as the microblaze developers work on getting their changes
upstream, I don't have a problem with adding microblaze support.

-- 
Bye, Peter Korsgaard

[Buildroot] Adding Microblaze support to Buildroot

[Stephan Hoffmann]

Am 22.11.2011 10:14, schrieb Peter Korsgaard:
>>>>>> "Stephan" == Stephan Hoffmann <sho@relinux.de> writes:
>  Stephan> Hello all,
>
>  Stephan> is there an interest in adding the Microblaze architecture to
>  Stephan> buildroot?
>
> Yes, I would say so.
>
>  I'm more worrying about how much we need to patch individual
> packages to work on microblaze.
To which extend do you expect individual packages being tested on the
different architectures?

By now I have a busybox only configuration that can boot with the U-Boot
available from the Avnet website.

I can send a patch against buildroot's next branch if desired.

Stephan

-- 
reLinux     -    Stephan Hoffmann
Am Schmidtgrund 124    50765 K?ln
Tel. +49.221.95595-19    Fax: -64
www.reLinux.de     sho at reLinux.de

[Buildroot] Adding Microblaze support to Buildroot

[Thomas Petazzoni]

Le Wed, 23 Nov 2011 12:09:53 +0100,
Stephan Hoffmann <sho@relinux.de> a ?crit :

> To which extend do you expect individual packages being tested on the
> different architectures?

On Blackfin, there are many packages that don't build, because they
simply cannot build on !MMU systems. Our goal is to progressively add
the "depends on BR2_USE_MMU" on all packages that need a MMU to
build/work properly.

So, it's definitely not a problem if not all packages have not been
tested with Microblaze. I'll add a Microblaze toolchain into my
Buildroot testing stuff, it will raise issues, and we will fix them as
we go.

> By now I have a busybox only configuration that can boot with the
> U-Boot available from the Avnet website.
> 
> I can send a patch against buildroot's next branch if desired.

Excellent. Would be good to have :

 * A patch adding the general Microblaze support

 * A patch that adds some defconfig for the Microblaze board you have

 * It would be even better if another patch could add a defconfig for
   the Microblaze Qemu emulation, so that those not having a
   Microblaze board can test.

Best regards,

Thomas
-- 
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com

[Buildroot] Adding Microblaze support to Buildroot

[Stephan Hoffmann]

Am 23.11.2011 14:54, schrieb Thomas Petazzoni:
> Le Wed, 23 Nov 2011 12:09:53 +0100,
> Stephan Hoffmann <sho@relinux.de> a ?crit :
>
>> To which extend do you expect individual packages being tested on the
>> different architectures?
> On Blackfin, there are many packages that don't build, because they
> simply cannot build on !MMU systems. Our goal is to progressively add
> the "depends on BR2_USE_MMU" on all packages that need a MMU to
> build/work properly.
>
In fact, my Microblaze is with MMU since Xilinx only supports linux with
mmu.
> Excellent. Would be good to have :
>
>  * A patch adding the general Microblaze support
>
>  * A patch that adds some defconfig for the Microblaze board you have
I'll send these in one patch if that's O.K. There ia also a new kernel
defconfig, because the defconfig supplied with the kernel does not work
for my configuration.
>  * It would be even better if another patch could add a defconfig for
>    the Microblaze Qemu emulation, so that those not having a
>    Microblaze board can test.
That's a real good idea, I'll work on this later.

Stephan

-- 
reLinux     -    Stephan Hoffmann
Am Schmidtgrund 124    50765 K?ln
Tel. +49.221.95595-19    Fax: -64
www.reLinux.de     sho at reLinux.de

[Buildroot] Adding Microblaze support to Buildroot

[Thomas Petazzoni]

Le Wed, 23 Nov 2011 16:46:03 +0100,
Stephan Hoffmann <sho@relinux.de> a ?crit :

> In fact, my Microblaze is with MMU since Xilinx only supports linux with
> mmu.

Ah, ok.

> I'll send these in one patch if that's O.K. There ia also a new kernel
> defconfig, because the defconfig supplied with the kernel does not work
> for my configuration.

Ok.

> >  * It would be even better if another patch could add a defconfig for
> >    the Microblaze Qemu emulation, so that those not having a
> >    Microblaze board can test.
> That's a real good idea, I'll work on this later.

Do you know if Qemu emulates the Microblaze variants that have a MMU ?
It would be good to have samples for both cases.

Regards,

Thomas
-- 
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com

[Buildroot] Adding Microblaze support to Buildroot

[Stephan Hoffmann]

Am 23.11.2011 16:49, schrieb Thomas Petazzoni:
> Le Wed, 23 Nov 2011 16:46:03 +0100,
> Stephan Hoffmann <sho@relinux.de> a ?crit :
>
>> In fact, my Microblaze is with MMU since Xilinx only supports linux with
>> mmu.
> Ah, ok.
>
>> I'll send these in one patch if that's O.K. There ia also a new kernel
>> defconfig, because the defconfig supplied with the kernel does not work
>> for my configuration.
> Ok.
>
>>>  * It would be even better if another patch could add a defconfig for
>>>    the Microblaze Qemu emulation, so that those not having a
>>>    Microblaze board can test.
>> That's a real good idea, I'll work on this later.
> Do you know if Qemu emulates the Microblaze variants that have a MMU ?
> It would be good to have samples for both cases.
Qemu should support both with and without mmu. Unfortunatelly, I am not
very experienced in qemu, so it might take some time to fiugure out how
it goes. A first try gives me a error on an address that is neither in
the physical nor in the logical address space of my kernel.

Regards

Stephan
> Regards,
>
> Thomas


-- 
reLinux     -    Stephan Hoffmann
Am Schmidtgrund 124    50765 K?ln
Tel. +49.221.95595-19    Fax: -64
www.reLinux.de     sho at reLinux.de

[Buildroot] [PATCH] Adding Microblaze support to Buildroot

[Stephan Hoffmann]

Am 23.11.2011 14:54, schrieb Thomas Petazzoni:
> Excellent. Would be good to have :
>
>  * A patch adding the general Microblaze support
>
>  * A patch that adds some defconfig for the Microblaze board you have
>
Hello all,

here is my patch to introduce MicroBlaze to buildroot. Comments are
highly welcome!

Kind regards

Stephan Hoffmann

[Buildroot] [PATCH] Adding Microblaze support to Buildroot

[Baruch Siach]

Hi Stephan,

On Sun, Nov 27, 2011 at 06:38:45PM +0100, Stephan Hoffmann wrote:
> Am 23.11.2011 14:54, schrieb Thomas Petazzoni:
> > Excellent. Would be good to have :
> >
> >  * A patch adding the general Microblaze support
> >
> >  * A patch that adds some defconfig for the Microblaze board you have
> >
> Hello all,
> 
> here is my patch to introduce MicroBlaze to buildroot. Comments are
> highly welcome!

[snip]

> +This is the buildroot board support for the Avnet Spartan6 LX9 MicroBoard.
> +
> +The board can be bought from Avnet or from Trenz for a low prize.

s/prize/price/

baruch

-- 
                                                     ~. .~   Tk Open Systems
=}------------------------------------------------ooO--U--Ooo------------{=
   - baruch at tkos.co.il - tel: +972.2.679.5364, http://www.tkos.co.il -

[Buildroot] [PATCH] Adding Microblaze support to Buildroot

[Spenser Gilliland]

Hey,

I'm using this Microblaze patch for my project.  Will it be part of
the official release that is coming up soon?

Spenser

On Sun, Nov 27, 2011 at 11:26 PM, Baruch Siach <baruch@tkos.co.il> wrote:
> Hi Stephan,
>
> On Sun, Nov 27, 2011 at 06:38:45PM +0100, Stephan Hoffmann wrote:
>> Am 23.11.2011 14:54, schrieb Thomas Petazzoni:
>> > Excellent. Would be good to have :
>> >
>> > ?* A patch adding the general Microblaze support
>> >
>> > ?* A patch that adds some defconfig for the Microblaze board you have
>> >
>> Hello all,
>>
>> here is my patch to introduce MicroBlaze to buildroot. Comments are
>> highly welcome!
>
> [snip]
>
>> +This is the buildroot board support for the Avnet Spartan6 LX9 MicroBoard.
>> +
>> +The board can be bought from Avnet or from Trenz for a low prize.
>
> s/prize/price/
>
> baruch
>
> --
> ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ~. .~ ? Tk Open Systems
> =}------------------------------------------------ooO--U--Ooo------------{=
> ? - baruch at tkos.co.il - tel: +972.2.679.5364, http://www.tkos.co.il -
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot



-- 
Spenser Gilliland
Computer Engineer
Illinois Institute of Technology

[Buildroot] [PATCH] Adding Microblaze support to Buildroot

[Arnout Vandecappelle]

On Saturday 11 February 2012 05:58:37 Spenser Gilliland wrote:
> I'm using this Microblaze patch for my project.  Will it be part of
> the official release that is coming up soon?

 I'm afraid it got lost between the cracks.  Could you repost it?

 Regards,
 Arnout

-- 
Arnout Vandecappelle                               arnout at mind be
Senior Embedded Software Architect                 +32-16-286540
Essensium/Mind                                     http://www.mind.be
G.Geenslaan 9, 3001 Leuven, Belgium                BE 872 984 063 RPR Leuven
LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
GPG fingerprint:  7CB5 E4CC 6C2E EFD4 6E3D A754 F963 ECAB 2450 2F1F

[Buildroot] [PATCH] Adding Microblaze support to Buildroot

[Spenser Gilliland]

Sure what's the best way to do that? I had to make some changes to the
initial patch.

Spenser

On Sat, Feb 11, 2012 at 10:18 AM, Arnout Vandecappelle <arnout@mind.be> wrote:
> On Saturday 11 February 2012 05:58:37 Spenser Gilliland wrote:
>> I'm using this Microblaze patch for my project. ?Will it be part of
>> the official release that is coming up soon?
>
> ?I'm afraid it got lost between the cracks. ?Could you repost it?
>
> ?Regards,
> ?Arnout
>
> --
> Arnout Vandecappelle ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? arnout at mind be
> Senior Embedded Software Architect ? ? ? ? ? ? ? ? +32-16-286540
> Essensium/Mind ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? http://www.mind.be
> G.Geenslaan 9, 3001 Leuven, Belgium ? ? ? ? ? ? ? ?BE 872 984 063 RPR Leuven
> LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
> GPG fingerprint: ?7CB5 E4CC 6C2E EFD4 6E3D A754 F963 ECAB 2450 2F1F



-- 
Spenser Gilliland
Computer Engineer
Illinois Institute of Technology

[Buildroot] [PATCH] Added microblaze patch

[Spenser Gilliland]

Arnout,

This is the patch with some minor adjustments.  I've tested it using a big endian toolchain.  Stephen used a little endian toolchain.  

I got rid of the BR2_GCC_TARGET_TUNE as the build errored out when I attempt it with the raw patch.  The error stated that target tune was not supported by the compiler.  

Spenser 

---
 board/relinux/avnet_LX9MicroBoard/README           |   64 +++++
 board/relinux/avnet_LX9MicroBoard/TODO             |   19 ++
 board/relinux/avnet_LX9MicroBoard/lx9_mmu.dts      |  247 ++++++++++++++++++++
 .../relinux/avnet_LX9MicroBoard/lx9_mmu_defconfig  |   68 ++++++
 configs/spartan6lx9_mb_defconfig                   |   18 ++
 linux/Config.in                                    |    8 +
 linux/linux.mk                                     |   16 ++
 target/Config.in.arch                              |   26 ++-
 8 files changed, 462 insertions(+), 4 deletions(-)
 create mode 100644 board/relinux/avnet_LX9MicroBoard/README
 create mode 100644 board/relinux/avnet_LX9MicroBoard/TODO
 create mode 100644 board/relinux/avnet_LX9MicroBoard/lx9_mmu.dts
 create mode 100644 board/relinux/avnet_LX9MicroBoard/lx9_mmu_defconfig
 create mode 100644 configs/spartan6lx9_mb_defconfig

diff --git a/board/relinux/avnet_LX9MicroBoard/README b/board/relinux/avnet_LX9MicroBoard/README
new file mode 100644
index 0000000..a2e9247
--- /dev/null
+++ b/board/relinux/avnet_LX9MicroBoard/README
@@ -0,0 +1,64 @@
+This is the buildroot board support for the Avnet Spartan6 LX9 MicroBoard.
+
+The board can be bought from Avnet or from Trenz for a low prize.
+
+To run the Linux built with buildroot you have to install the FPGA bitfile
+and the u-boot boot loader as described in the totorial available on
+
+    http://www.em.avnet.com/s6microboard
+
+The image file (default name is simpleImage.lx9_mmu.ub) has to be
+copied to your tftp folder (often /tftpboot/).
+
+Sample session:
+
+SPI Bootloader
+Loading binary image
+from flash @ address: 00060000
+to RAM address: 83f00000
+Done
+
+
+SDRAM :
+                Icache:ON
+                Dcache:ON
+        U-Boot Start:0x83f00000
+SF: Got idcode 20 ba 18 10 01
+*** Warning - bad CRC, using default environment
+
+Net:   Xilinx_Emaclite
+MAC:   00:0a:35:00:63:37
+U-BOOT for Avnet-LX9-Microboard-AXI-tiny-13.1
+
+BOOTP broadcast 1
+DHCP client bound to address 192.168.11.122
+Hit any key to stop autoboot:  0
+U-Boot-PetaLinux> tftp simpleImage.lx9_mmu.ub
+Using Xilinx_Emaclite device
+TFTP from server 192.168.11.10; our IP address is 192.168.11.122
+Filename 't.ub'.
+Load address: 0x80002000
+Loading: #################################################################
+         #################################################################
+         #################################################################
+         #################################################################
+         #################################################################
+         ##############################
+done
+Bytes transferred = 5207724 (4f76ac hex)
+U-Boot-PetaLinux> bootm
+## Booting kernel from Legacy Image at 80002000 ...
+   Image Name:   Linux-3.1.0
+   Image Type:   MicroBlaze Linux Kernel Image (uncompressed)
+   Data Size:    5207660 Bytes =  5 MB
+   Load Address: 80000000
+   Entry Point:  80000000
+   Verifying Checksum ... OK
+   Loading Kernel Image ... OK
+OK
+## Transferring control to Linux (at address 80000000), 0x80000000 ramdisk 0x00000000, FDT 0x00000000...
+Early console on uartlite at 0x40600000
+..... boot log skipped
+
+Welcome to Microblaze Buildroot
+Microblaze login:
diff --git a/board/relinux/avnet_LX9MicroBoard/TODO b/board/relinux/avnet_LX9MicroBoard/TODO
new file mode 100644
index 0000000..ca5ee94
--- /dev/null
+++ b/board/relinux/avnet_LX9MicroBoard/TODO
@@ -0,0 +1,19 @@
+TODO list for the Spartan LX9 Microboard
+
+Generate u-boot within buildroot
+================================
+Currently, we need to use the u-boot provided by Avnet.
+
+Provide config files for qemu
+=============================
+
+Generate toolchain
+==================
+Currently the GNU toolchain provided by Xilinx has to be used.
+Xilinx does not provide a toolchain suitable to build a mmu-less
+Linux system, but omitting the mmu saved space within the FPGA.
+
+Bring up mmu-less system
+========================
+Hopefully this is easy as soon as we have a working toolchain
+with flt support.
diff --git a/board/relinux/avnet_LX9MicroBoard/lx9_mmu.dts b/board/relinux/avnet_LX9MicroBoard/lx9_mmu.dts
new file mode 100644
index 0000000..8ffedd9
--- /dev/null
+++ b/board/relinux/avnet_LX9MicroBoard/lx9_mmu.dts
@@ -0,0 +1,247 @@
+/*
+ * Device Tree Generator version: 1.3
+ *
+ * (C) Copyright 2007-2008 Xilinx, Inc.
+ * (C) Copyright 2007-2009 Michal Simek
+ *
+ * Michal SIMEK <monstr@monstr.eu>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ * CAUTION: This file is automatically generated by libgen.
+ * Version: Xilinx EDK 13.2 EDK_O.61xd
+ *
+ * XPS project directory: device-tree_bsp_230-orig
+ */
+
+/dts-v1/;
+/ {
+    #address-cells = <1>;
+    #size-cells = <1>;
+    compatible = "xlnx,microblaze";
+    model = "testing";
+    MCB3_LPDDR: memory at 80000000 {
+        device_type = "memory";
+        reg = < 0x80000000 0x4000000 >;
+    } ;
+    aliases {
+        ethernet0 = &Ethernet_MAC;
+        serial0 = &USB_Uart;
+    } ;
+    chosen {
+        bootargs = "console=ttyUL0";
+        linux,stdout-path = "/axi at 0/serial at 40600000";
+    } ;
+    cpus {
+        #address-cells = <1>;
+        #cpus = <0x1>;
+        #size-cells = <0>;
+        microblaze_0: cpu at 0 {
+            clock-frequency = <66666667>;
+            compatible = "xlnx,microblaze-8.20.a";
+            d-cache-baseaddr = <0x80000000>;
+            d-cache-highaddr = <0x83ffffff>;
+            d-cache-line-size = <0x10>;
+            d-cache-size = <0x2000>;
+            device_type = "cpu";
+            i-cache-baseaddr = <0x80000000>;
+            i-cache-highaddr = <0x83ffffff>;
+            i-cache-line-size = <0x10>;
+            i-cache-size = <0x2000>;
+            model = "microblaze,8.20.a";
+            reg = <0>;
+            timebase-frequency = <66666667>;
+            xlnx,addr-tag-bits = <0xd>;
+            xlnx,allow-dcache-wr = <0x1>;
+            xlnx,allow-icache-wr = <0x1>;
+            xlnx,area-optimized = <0x0>;
+            xlnx,avoid-primitives = <0x0>;
+            xlnx,branch-target-cache-size = <0x0>;
+            xlnx,cache-byte-size = <0x2000>;
+            xlnx,d-axi = <0x1>;
+            xlnx,d-lmb = <0x1>;
+            xlnx,d-plb = <0x0>;
+            xlnx,data-size = <0x20>;
+            xlnx,dcache-addr-tag = <0xd>;
+            xlnx,dcache-always-used = <0x1>;
+            xlnx,dcache-byte-size = <0x2000>;
+            xlnx,dcache-data-width = <0x0>;
+            xlnx,dcache-force-tag-lutram = <0x0>;
+            xlnx,dcache-interface = <0x0>;
+            xlnx,dcache-line-len = <0x4>;
+            xlnx,dcache-use-fsl = <0x0>;
+            xlnx,dcache-use-writeback = <0x0>;
+            xlnx,dcache-victims = <0x0>;
+            xlnx,debug-enabled = <0x1>;
+            xlnx,div-zero-exception = <0x0>;
+            xlnx,dynamic-bus-sizing = <0x1>;
+            xlnx,ecc-use-ce-exception = <0x0>;
+            xlnx,edge-is-positive = <0x1>;
+            xlnx,endianness = <0x1>;
+            xlnx,family = "spartan6";
+            xlnx,fault-tolerant = <0x0>;
+            xlnx,fpu-exception = <0x0>;
+            xlnx,freq = <0x3f940ab>;
+            xlnx,fsl-data-size = <0x20>;
+            xlnx,fsl-exception = <0x0>;
+            xlnx,fsl-links = <0x0>;
+            xlnx,i-axi = <0x0>;
+            xlnx,i-lmb = <0x1>;
+            xlnx,i-plb = <0x0>;
+            xlnx,icache-always-used = <0x1>;
+            xlnx,icache-data-width = <0x0>;
+            xlnx,icache-force-tag-lutram = <0x0>;
+            xlnx,icache-interface = <0x0>;
+            xlnx,icache-line-len = <0x4>;
+            xlnx,icache-streams = <0x0>;
+            xlnx,icache-use-fsl = <0x0>;
+            xlnx,icache-victims = <0x0>;
+            xlnx,ill-opcode-exception = <0x0>;
+            xlnx,instance = "microblaze_0";
+            xlnx,interconnect = <0x2>;
+            xlnx,interconnect-m-axi-dc-aw-register = <0x0>;
+            xlnx,interconnect-m-axi-dc-read-issuing = <0x2>;
+            xlnx,interconnect-m-axi-dc-w-register = <0x0>;
+            xlnx,interconnect-m-axi-dc-write-issuing = <0x20>;
+            xlnx,interconnect-m-axi-dp-read-issuing = <0x1>;
+            xlnx,interconnect-m-axi-dp-write-issuing = <0x1>;
+            xlnx,interconnect-m-axi-ic-read-issuing = <0x2>;
+            xlnx,interconnect-m-axi-ip-read-issuing = <0x1>;
+            xlnx,interrupt-is-edge = <0x0>;
+            xlnx,lockstep-slave = <0x0>;
+            xlnx,mmu-dtlb-size = <0x1>;
+            xlnx,mmu-itlb-size = <0x1>;
+            xlnx,mmu-privileged-instr = <0x0>;
+            xlnx,mmu-tlb-access = <0x3>;
+            xlnx,mmu-zones = <0x2>;
+            xlnx,number-of-pc-brk = <0x1>;
+            xlnx,number-of-rd-addr-brk = <0x0>;
+            xlnx,number-of-wr-addr-brk = <0x0>;
+            xlnx,opcode-0x0-illegal = <0x0>;
+            xlnx,optimization = <0x0>;
+            xlnx,pvr = <0x0>;
+            xlnx,pvr-user1 = <0x0>;
+            xlnx,pvr-user2 = <0x0>;
+            xlnx,reset-msr = <0x0>;
+            xlnx,sco = <0x0>;
+            xlnx,stream-interconnect = <0x0>;
+            xlnx,unaligned-exceptions = <0x0>;
+            xlnx,use-barrel = <0x1>;
+            xlnx,use-branch-target-cache = <0x0>;
+            xlnx,use-dcache = <0x1>;
+            xlnx,use-div = <0x0>;
+            xlnx,use-ext-brk = <0x1>;
+            xlnx,use-ext-nm-brk = <0x1>;
+            xlnx,use-extended-fsl-instr = <0x0>;
+            xlnx,use-fpu = <0x0>;
+            xlnx,use-hw-mul = <0x1>;
+            xlnx,use-icache = <0x1>;
+            xlnx,use-interrupt = <0x1>;
+            xlnx,use-mmu = <0x3>;
+            xlnx,use-msr-instr = <0x1>;
+            xlnx,use-pcmp-instr = <0x0>;
+            xlnx,use-stack-protection = <0x0>;
+        } ;
+    } ;
+    axi4lite_0: axi at 0 {
+        #address-cells = <1>;
+        #size-cells = <1>;
+        compatible = "xlnx,axi-interconnect-1.03.a", "simple-bus";
+        ranges ;
+        Ethernet_MAC: ethernet at 40e00000 {
+            compatible = "xlnx,axi-ethernetlite-1.00.a", "xlnx,xps-ethernetlite-1.00.a";
+            device_type = "network";
+            interrupt-parent = <&microblaze_0_intc>;
+            interrupts = < 2 0 >;
+            local-mac-address = [ 00 0a 35 aa de 00 ];
+//            phy-handle = <&phy0>;
+            reg = < 0x40e00000 0x10000 >;
+            xlnx,duplex = <0x1>;
+            xlnx,family = "spartan6";
+            xlnx,include-global-buffers = <0x0>;
+            xlnx,include-internal-loopback = <0x0>;
+            xlnx,include-mdio = <0x1>;
+            xlnx,include-phy-constraints = <0x1>;
+            xlnx,interconnect-s-axi-read-acceptance = <0x1>;
+            xlnx,interconnect-s-axi-write-acceptance = <0x1>;
+            xlnx,rx-ping-pong = <0x0>;
+            xlnx,s-axi-aclk-period-ps = <0x3a98>;
+            xlnx,s-axi-id-width = <0x1>;
+            xlnx,s-axi-supports-narrow-burst = <0x0>;
+            xlnx,tx-ping-pong = <0x0>;
+/*
+            mdio {
+                #address-cells = <1>;
+                #size-cells = <0>;
+                phy0: phy at 7 {
+                    compatible = "marvell,88e1111";
+                    device_type = "ethernet-phy";
+                    reg = <7>;
+                } ;
+            } ;
+*/
+        } ;
+        SPI_FLASH: spi at 40a00000 {
+            compatible = "xlnx,axi-spi-1.01.a", "xlnx,xps-spi-2.00.a";
+            interrupt-parent = <&microblaze_0_intc>;
+            interrupts = < 1 2 >;
+            reg = < 0x40a00000 0x10000 >;
+            xlnx,family = "spartan6";
+            xlnx,fifo-exist = <0x1>;
+            xlnx,num-ss-bits = <0x1>;
+            xlnx,num-transfer-bits = <0x8>;
+            xlnx,sck-ratio = <0x4>;
+        } ;
+        USB_Uart: serial at 40600000 {
+            clock-frequency = <66666667>;
+            compatible = "xlnx,axi-uartlite-1.02.a", "xlnx,xps-uartlite-1.00.a";
+            current-speed = <115200>;
+            device_type = "serial";
+            interrupt-parent = <&microblaze_0_intc>;
+            interrupts = < 3 0 >;
+            port-number = <0>;
+            reg = < 0x40600000 0x10000 >;
+            xlnx,baudrate = <0x1c200>;
+            xlnx,data-bits = <0x8>;
+            xlnx,family = "spartan6";
+            xlnx,odd-parity = <0x1>;
+            xlnx,s-axi-aclk-freq-hz = <0x3f940ab>;
+            xlnx,use-parity = <0x0>;
+        } ;
+        microblaze_0_intc: interrupt-controller at 41200000 {
+            #interrupt-cells = <0x2>;
+            compatible = "xlnx,axi-intc-1.01.a", "xlnx,xps-intc-1.00.a";
+            interrupt-controller ;
+            reg = < 0x41200000 0x10000 >;
+            xlnx,kind-of-intr = <0xc>;
+            xlnx,num-intr-inputs = <0x4>;
+        } ;
+        system_timer: timer at 41c00000 {
+            clock-frequency = <66666667>;
+            compatible = "xlnx,axi-timer-1.02.a", "xlnx,xps-timer-1.00.a";
+            interrupt-parent = <&microblaze_0_intc>;
+            interrupts = < 0 2 >;
+            reg = < 0x41c00000 0x10000 >;
+            xlnx,count-width = <0x20>;
+            xlnx,family = "spartan6";
+            xlnx,gen0-assert = <0x1>;
+            xlnx,gen1-assert = <0x1>;
+            xlnx,one-timer-only = <0x0>;
+            xlnx,trig0-assert = <0x1>;
+            xlnx,trig1-assert = <0x1>;
+        } ;
+    } ;
+} ;
diff --git a/board/relinux/avnet_LX9MicroBoard/lx9_mmu_defconfig b/board/relinux/avnet_LX9MicroBoard/lx9_mmu_defconfig
new file mode 100644
index 0000000..5d01ca0
--- /dev/null
+++ b/board/relinux/avnet_LX9MicroBoard/lx9_mmu_defconfig
@@ -0,0 +1,68 @@
+CONFIG_EXPERIMENTAL=y
+CONFIG_SYSVIPC=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_INITRAMFS_SOURCE="rootfs.cpio"
+CONFIG_INITRAMFS_COMPRESSION_GZIP=y
+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
+CONFIG_EXPERT=y
+CONFIG_KALLSYMS_ALL=y
+CONFIG_KALLSYMS_EXTRA_PASS=y
+# CONFIG_HOTPLUG is not set
+# CONFIG_BASE_FULL is not set
+# CONFIG_FUTEX is not set
+# CONFIG_EPOLL is not set
+# CONFIG_SIGNALFD is not set
+# CONFIG_SHMEM is not set
+CONFIG_SLAB=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+# CONFIG_BLK_DEV_BSG is not set
+# CONFIG_OPT_LIB_ASM is not set
+CONFIG_KERNEL_BASE_ADDR=0x80000000
+CONFIG_XILINX_MICROBLAZE0_FAMILY="spartan6"
+CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR=1
+# CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR is not set
+CONFIG_XILINX_MICROBLAZE0_USE_BARREL=1
+CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL=1
+CONFIG_XILINX_MICROBLAZE0_HW_VER="8.20.a"
+CONFIG_HZ_100=y
+CONFIG_MMU=y
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE_FORCE=y
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+# CONFIG_INET_LRO is not set
+# CONFIG_IPV6 is not set
+CONFIG_PROC_DEVICETREE=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_SIZE=8192
+CONFIG_NETDEVICES=y
+CONFIG_NET_ETHERNET=y
+CONFIG_XILINX_EMACLITE=y
+# CONFIG_INPUT is not set
+# CONFIG_SERIO is not set
+# CONFIG_VT is not set
+CONFIG_SERIAL_UARTLITE=y
+CONFIG_SERIAL_UARTLITE_CONSOLE=y
+# CONFIG_HW_RANDOM is not set
+# CONFIG_HWMON is not set
+# CONFIG_USB_SUPPORT is not set
+CONFIG_EXT2_FS=y
+# CONFIG_DNOTIFY is not set
+CONFIG_NFS_FS=y
+CONFIG_NFS_V3=y
+CONFIG_CIFS=y
+CONFIG_CIFS_STATS=y
+CONFIG_CIFS_STATS2=y
+CONFIG_PARTITION_ADVANCED=y
+CONFIG_DEBUG_KERNEL=y
+CONFIG_DETECT_HUNG_TASK=y
+CONFIG_DEBUG_SLAB=y
+CONFIG_DEBUG_SPINLOCK=y
+CONFIG_DEBUG_INFO=y
+CONFIG_EARLY_PRINTK=y
+# CONFIG_CRYPTO_ANSI_CPRNG is not set
diff --git a/configs/spartan6lx9_mb_defconfig b/configs/spartan6lx9_mb_defconfig
new file mode 100644
index 0000000..5ae1ede
--- /dev/null
+++ b/configs/spartan6lx9_mb_defconfig
@@ -0,0 +1,18 @@
+BR2_microblaze=y
+BR2_microblazel=y
+BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_PATH="/opt/microblazeel-unknown-linux-gnu/"
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX="microblazeel-unknown-linux-gnu"
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
+BR2_TOOLCHAIN_EXTERNAL_CXX=y
+BR2_TARGET_GENERIC_HOSTNAME="Microblaze Buildroot"
+BR2_TARGET_GENERIC_ISSUE="Welcome to Microblaze Buildroot"
+BR2_TARGET_GENERIC_GETTY_PORT="ttyUL0"
+# BR2_TARGET_ROOTFS_TAR is not set
+BR2_TARGET_ROOTFS_INITRAMFS=y
+BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
+BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(TOPDIR)/board/relinux/avnet_LX9MicroBoard/lx9_mmu_defconfig"
+BR2_LINUX_KERNEL_DTS_FILE="$(TOPDIR)/board/relinux/avnet_LX9MicroBoard/lx9_mmu.dts"
+BR2_LINUX_KERNEL_IMAGE_TARGET_CUSTOM=y
+BR2_LINUX_KERNEL_IMAGE_TARGET_NAME="simpleImage.lx9_mmu"
diff --git a/linux/Config.in b/linux/Config.in
index 86dc32a..138feb3 100644
--- a/linux/Config.in
+++ b/linux/Config.in
@@ -120,6 +120,14 @@ config BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE
 	help
 	  Path to the kernel configuration file
 
+config BR2_LINUX_KERNEL_DTS_FILE
+    string "Device Tree dts file location"
+    depends on BR2_microblaze
+    help
+      Path from where the dts file has to be copied
+      The final "custom target" name depends on the
+      dts file name:
+          <name>.dts --> simpleImage.<name>
 #
 # Binary format
 #
diff --git a/linux/linux.mk b/linux/linux.mk
index ae236d4..ade867a 100644
--- a/linux/linux.mk
+++ b/linux/linux.mk
@@ -117,6 +117,18 @@ endef
 
 LINUX_POST_PATCH_HOOKS += LINUX_APPLY_PATCHES
 
+ifeq ($(KERNEL_ARCH),microblaze)
+# on microblaze, we always want mkimage
+LINUX_DEPENDENCIES+=host-uboot-tools
+
+define LINUX_COPY_DTS
+    if test -f "$(BR2_LINUX_KERNEL_DTS_FILE)" ; then \
+        cp $(BR2_LINUX_KERNEL_DTS_FILE) $(@D)/arch/microblaze/boot/dts ; \
+    else \
+        echo "Cannot copy dts file!" ; \
+    fi
+endef
+endif
 
 ifeq ($(BR2_LINUX_KERNEL_USE_DEFCONFIG),y)
 KERNEL_SOURCE_CONFIG = $(KERNEL_ARCH_PATH)/configs/$(call qstrip,$(BR2_LINUX_KERNEL_DEFCONFIG))_defconfig
@@ -131,6 +143,8 @@ define LINUX_CONFIGURE_CMDS
 	$(if $(BR2_ARM_EABI),
 		$(call KCONFIG_ENABLE_OPT,CONFIG_AEABI,$(@D)/.config),
 		$(call KCONFIG_DISABLE_OPT,CONFIG_AEABI,$(@D)/.config))
+    $(if $(BR2_microblaze),
+        $(call LINUX_COPY_DTS))
 	# As the kernel gets compiled before root filesystems are
 	# built, we create a fake cpio file. It'll be
 	# replaced later by the real cpio archive, and the kernel will be
@@ -215,6 +229,8 @@ $(LINUX_DIR)/.stamp_initramfs_rebuilt: $(LINUX_DIR)/.stamp_target_installed $(LI
 	$(TARGET_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) $(LINUX_IMAGE_NAME)
 	# Copy the kernel image to its final destination
 	cp $(LINUX_IMAGE_PATH) $(BINARIES_DIR)
+	# If there is a .ub file copy it to the final destination
+	test -f $(LINUX_IMAGE_PATH).ub && cp $(LINUX_IMAGE_PATH).ub $(BINARIES_DIR)
 	$(Q)touch $@
 
 # The initramfs building code must make sure this target gets called
diff --git a/target/Config.in.arch b/target/Config.in.arch
index 417441d..0524307 100644
--- a/target/Config.in.arch
+++ b/target/Config.in.arch
@@ -21,6 +21,8 @@ config BR2_i386
 config BR2_m68k
 	bool "m68k"
 	depends on BROKEN # ice in uclibc / inet_ntoa_r
+config BR2_microblaze
+    bool "microblaze"
 config BR2_mips
 	bool "mips"
 config BR2_mipsel
@@ -477,6 +479,19 @@ config BR2_powerpc_SPE
 	depends on BR2_powerpc_8540 || BR2_powerpc_8548 || BR2_powerpc_e500mc
 endchoice
 
+choice 
+	prompt "Target Endianess"
+	depends on BR2_microblaze
+	default BR2_microblazeel
+	help 
+	  Endianess of the Microblaze Processor
+
+config BR2_microblazeel
+	bool "Little Endian"
+config BR2_microblazebe
+	bool "Big Endian"
+endchoice
+
 config BR2_ARCH
 	string
 	default "arm"		if BR2_arm
@@ -508,6 +523,7 @@ config BR2_ARCH
 	default "i686"		if BR2_x86_athlon
 	default "i686"		if BR2_x86_athlon_4
 	default "m68k"		if BR2_m68k
+	default "microblaze"	if BR2_microblaze
 	default "mips"		if BR2_mips
 	default "mipsel"	if BR2_mipsel
 	default "powerpc"	if BR2_powerpc
@@ -533,11 +549,13 @@ config BR2_ARCH
 
 config BR2_ENDIAN
 	string
-	default "LITTLE" if BR2_arm || BR2_bfin || BR2_i386 || BR2_mipsel || \
-			    BR2_sh3 || BR2_sh4 || BR2_sh4a || BR2_x86_64 || BR2_sh64
+   default "LITTLE" if BR2_arm || BR2_bfin || BR2_i386 || BR2_mipsel || \
+			    BR2_sh3 || BR2_sh4 || BR2_sh4a || BR2_x86_64 || BR2_sh64 || \
+			    BR2_microblazeel 
 	default "BIG"    if BR2_armeb || BR2_avr32 || BR2_m68k || BR2_mips || \
-			    BR2_powerpc || BR2_sh2 || BR2_sh2a || \
-			    BR2_sh3eb || BR2_sh4eb || BR2_sh4aeb || BR2_sparc
+			    BR2_powerpc || BR2_sh2 || BR2_sh2a || BR2_sh3eb || \
+			    BR2_sh4eb || BR2_sh4aeb || BR2_sparc || \
+				BR2_microblazebe
 
 config BR2_GCC_TARGET_TUNE
 	string
-- 
1.7.9

[Buildroot] [PATCH] Added microblaze patch

[Arnout Vandecappelle]

On Monday 13 February 2012 02:03:58 Spenser Gilliland wrote:
> Arnout,
> 
> This is the patch with some minor adjustments.  I've tested it using a big endian toolchain.  Stephen used a little endian toolchain.  
> 
> I got rid of the BR2_GCC_TARGET_TUNE as the build errored out when I attempt it with the raw patch.  The error stated that target tune was not supported by the compiler.  
> 
> Spenser 

 Thanks for this patch!

 A few remarks:

* Please add a relevant commit message.  It starts with a single line
short description followed by an empty line.  Then one or more paragraphs
of explanation (probably not much needed in this case).  And finally, one
or more Signed-off-by lines.

* Add a Signed-off-by line for yourself.  This is a short way for you to 
assert that you are entitled to contribute the patch under buildroot's 
GPL license.  See  http://kerneltrap.org/files/Jeremy/DCO.txt for more 
details.

* In addition, include the Signed-off-by line of the original poster:
Signed-off-by: Stephan Hoffmann <sho@relinux.de>

* There were also a few remarks from Peter Kosgaard, Alvaro Gamez and
Thomas Petazonni.  Could you include those?

* See additional remarks below.

 If you don't have the time to do all this yourself, please let us know
so someone else can take it over.  Hopefully it won't fall between the
cracks again :-)

[snip]
> diff --git a/configs/spartan6lx9_mb_defconfig b/configs/spartan6lx9_mb_defconfig
> new file mode 100644
> index 0000000..5ae1ede
> --- /dev/null
> +++ b/configs/spartan6lx9_mb_defconfig
> @@ -0,0 +1,18 @@
> +BR2_microblaze=y
> +BR2_microblazel=y
> +BR2_TOOLCHAIN_EXTERNAL=y
> +BR2_TOOLCHAIN_EXTERNAL_PATH="/opt/microblazeel-unknown-linux-gnu/"
> +BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX="microblazeel-unknown-linux-gnu"

 I don't think we should have defconfigs that depend on pre-extracted toolchains.
Instead, the Xilinx toolchain should be added to the supported external toolchains
like Sourcery.

> +BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
> +BR2_TOOLCHAIN_EXTERNAL_CXX=y

> +BR2_TARGET_GENERIC_HOSTNAME="Microblaze Buildroot"
> +BR2_TARGET_GENERIC_ISSUE="Welcome to Microblaze Buildroot"
 No need to change the defaults here.

> +BR2_TARGET_GENERIC_GETTY_PORT="ttyUL0"
> +# BR2_TARGET_ROOTFS_TAR is not set
> +BR2_TARGET_ROOTFS_INITRAMFS=y
> +BR2_LINUX_KERNEL=y
> +BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
> +BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(TOPDIR)/board/relinux/avnet_LX9MicroBoard/lx9_mmu_defconfig"
> +BR2_LINUX_KERNEL_DTS_FILE="$(TOPDIR)/board/relinux/avnet_LX9MicroBoard/lx9_mmu.dts"
 The $(TOPDIR)/ is redundant: the build is always executed from $(TOPDIR).

> +BR2_LINUX_KERNEL_IMAGE_TARGET_CUSTOM=y
> +BR2_LINUX_KERNEL_IMAGE_TARGET_NAME="simpleImage.lx9_mmu"
> diff --git a/linux/Config.in b/linux/Config.in
> index 86dc32a..138feb3 100644
> --- a/linux/Config.in
> +++ b/linux/Config.in
> @@ -120,6 +120,14 @@ config BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE
>  	help
>  	  Path to the kernel configuration file
>  
> +config BR2_LINUX_KERNEL_DTS_FILE
> +    string "Device Tree dts file location"
> +    depends on BR2_microblaze
> +    help
> +      Path from where the dts file has to be copied
> +      The final "custom target" name depends on the
> +      dts file name:
> +          <name>.dts --> simpleImage.<name>
 Device tree support isn't specific to microblaze.  It's incredible that
we didn't have that in buildroot yet!  Can you make a separate patch to
add device tree support?  The generic device tree support of course
wouldn't have the combination of zImage and .dtb into a simpleImage,
so you'd have to add an explicit '$(MAKE) ....dtb' to the linux
build commands.

 Of course, there should also be support to select an in-kernel dts
(just like the in-kernel defconfigs).

>  #
>  # Binary format
>  #
> diff --git a/linux/linux.mk b/linux/linux.mk
> index ae236d4..ade867a 100644
> --- a/linux/linux.mk
> +++ b/linux/linux.mk
> @@ -117,6 +117,18 @@ endef
>  
>  LINUX_POST_PATCH_HOOKS += LINUX_APPLY_PATCHES
>  
> +ifeq ($(KERNEL_ARCH),microblaze)
> +# on microblaze, we always want mkimage
> +LINUX_DEPENDENCIES+=host-uboot-tools

 I think you should define a new image type BR2_LINUX_KERNEL_SIMPLEIMAGE
for microblaze, and only add this dependency if that image type is chosen.


> +
> +define LINUX_COPY_DTS
> +    if test -f "$(BR2_LINUX_KERNEL_DTS_FILE)" ; then \
> +        cp $(BR2_LINUX_KERNEL_DTS_FILE) $(@D)/arch/microblaze/boot/dts ; \
> +    else \
> +        echo "Cannot copy dts file!" ; \
> +    fi
> +endef

 The path should be $(KERNEL_ARCH_PATH)/boot/dts.  

 It requires an mkdir -p to make sure the target directory exists.

 The test -f is redundant, since cp will simply fail and terminate the build
if the source file doesn't exist.  

 You also need an extra make variable to remove the quotes:
LINUX_KERNEL_DTS_FILE = $(call qstrip,$(BR2_LINUX_KERNEL_DTS_FILE))

 And the define should be wrapped in a
ifneq ($(LINUX_KERNEL_DTS_FILE),)
...
endif

> +endif
>  
>  ifeq ($(BR2_LINUX_KERNEL_USE_DEFCONFIG),y)
>  KERNEL_SOURCE_CONFIG = $(KERNEL_ARCH_PATH)/configs/$(call qstrip,$(BR2_LINUX_KERNEL_DEFCONFIG))_defconfig
> @@ -131,6 +143,8 @@ define LINUX_CONFIGURE_CMDS
>  	$(if $(BR2_ARM_EABI),
>  		$(call KCONFIG_ENABLE_OPT,CONFIG_AEABI,$(@D)/.config),
>  		$(call KCONFIG_DISABLE_OPT,CONFIG_AEABI,$(@D)/.config))
> +    $(if $(BR2_microblaze),
> +        $(call LINUX_COPY_DTS))
 No call is needed here, the COPY_DTS is not a function.  And the
condition isn't necessary: the variable will default to empty.

>  	# As the kernel gets compiled before root filesystems are
>  	# built, we create a fake cpio file. It'll be
>  	# replaced later by the real cpio archive, and the kernel will be
> @@ -215,6 +229,8 @@ $(LINUX_DIR)/.stamp_initramfs_rebuilt: $(LINUX_DIR)/.stamp_target_installed $(LI
>  	$(TARGET_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) $(LINUX_IMAGE_NAME)
>  	# Copy the kernel image to its final destination
>  	cp $(LINUX_IMAGE_PATH) $(BINARIES_DIR)
> +	# If there is a .ub file copy it to the final destination
> +	test -f $(LINUX_IMAGE_PATH).ub && cp $(LINUX_IMAGE_PATH).ub $(BINARIES_DIR)
>  	$(Q)touch $@
>  
>  # The initramfs building code must make sure this target gets called
> diff --git a/target/Config.in.arch b/target/Config.in.arch
> index 417441d..0524307 100644
> --- a/target/Config.in.arch
> +++ b/target/Config.in.arch
> @@ -21,6 +21,8 @@ config BR2_i386
>  config BR2_m68k
>  	bool "m68k"
>  	depends on BROKEN # ice in uclibc / inet_ntoa_r
> +config BR2_microblaze
> +    bool "microblaze"
>  config BR2_mips
>  	bool "mips"
>  config BR2_mipsel
> @@ -477,6 +479,19 @@ config BR2_powerpc_SPE
>  	depends on BR2_powerpc_8540 || BR2_powerpc_8548 || BR2_powerpc_e500mc
>  endchoice
>  
> +choice 
> +	prompt "Target Endianess"
> +	depends on BR2_microblaze
> +	default BR2_microblazeel
> +	help 
> +	  Endianess of the Microblaze Processor
> +
> +config BR2_microblazeel
> +	bool "Little Endian"
> +config BR2_microblazebe
> +	bool "Big Endian"
> +endchoice

 For ARM and MIPS we define the endianness as the main architecture, not
as a subarchitecture.  I would do the same for microblaze.

 It does make sense to add a summarizing hidden BR2_microblaze, like this:

config BR2_microblaze
	bool
	default y if BR2_microblazeel || BR2_microblazebe

> +
>  config BR2_ARCH
>  	string
>  	default "arm"		if BR2_arm
> @@ -508,6 +523,7 @@ config BR2_ARCH
>  	default "i686"		if BR2_x86_athlon
>  	default "i686"		if BR2_x86_athlon_4
>  	default "m68k"		if BR2_m68k
> +	default "microblaze"	if BR2_microblaze
>  	default "mips"		if BR2_mips
>  	default "mipsel"	if BR2_mipsel
>  	default "powerpc"	if BR2_powerpc
> @@ -533,11 +549,13 @@ config BR2_ARCH
>  
>  config BR2_ENDIAN
>  	string
> -	default "LITTLE" if BR2_arm || BR2_bfin || BR2_i386 || BR2_mipsel || \
> -			    BR2_sh3 || BR2_sh4 || BR2_sh4a || BR2_x86_64 || BR2_sh64
> +   default "LITTLE" if BR2_arm || BR2_bfin || BR2_i386 || BR2_mipsel || \
> +			    BR2_sh3 || BR2_sh4 || BR2_sh4a || BR2_x86_64 || BR2_sh64 || \
> +			    BR2_microblazeel 
>  	default "BIG"    if BR2_armeb || BR2_avr32 || BR2_m68k || BR2_mips || \
> -			    BR2_powerpc || BR2_sh2 || BR2_sh2a || \
> -			    BR2_sh3eb || BR2_sh4eb || BR2_sh4aeb || BR2_sparc
> +			    BR2_powerpc || BR2_sh2 || BR2_sh2a || BR2_sh3eb || \
> +			    BR2_sh4eb || BR2_sh4aeb || BR2_sparc || \
> +				BR2_microblazebe
>  
>  config BR2_GCC_TARGET_TUNE
>  	string
> 


 Regards,
 Arnout

-- 
Arnout Vandecappelle                               arnout at mind be
Senior Embedded Software Architect                 +32-16-286540
Essensium/Mind                                     http://www.mind.be
G.Geenslaan 9, 3001 Leuven, Belgium                BE 872 984 063 RPR Leuven
LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
GPG fingerprint:  7CB5 E4CC 6C2E EFD4 6E3D A754 F963 ECAB 2450 2F1F

[Buildroot] [PATCH] Added microblaze patch

[Spenser Gilliland]

Arnout,

I agree with the comments.  I'll get on it and have something ASAP.  I
want to have this in the coming release.

Additionally, I have been working on a Microblaze specific patch which
adds the ability to copy parameters.h to the required directory in
uboot.  This is required to build a working u-boot for a custom board.

Spenser



On Mon, Feb 13, 2012 at 3:37 PM, Arnout Vandecappelle <arnout@mind.be> wrote:
> On Monday 13 February 2012 02:03:58 Spenser Gilliland wrote:
>> Arnout,
>>
>> This is the patch with some minor adjustments. ?I've tested it using a big endian toolchain. ?Stephen used a little endian toolchain.
>>
>> I got rid of the BR2_GCC_TARGET_TUNE as the build errored out when I attempt it with the raw patch. ?The error stated that target tune was not supported by the compiler.
>>
>> Spenser
>
> ?Thanks for this patch!
>
> ?A few remarks:
>
> * Please add a relevant commit message. ?It starts with a single line
> short description followed by an empty line. ?Then one or more paragraphs
> of explanation (probably not much needed in this case). ?And finally, one
> or more Signed-off-by lines.
>
> * Add a Signed-off-by line for yourself. ?This is a short way for you to
> assert that you are entitled to contribute the patch under buildroot's
> GPL license. ?See ?http://kerneltrap.org/files/Jeremy/DCO.txt for more
> details.
>
> * In addition, include the Signed-off-by line of the original poster:
> Signed-off-by: Stephan Hoffmann <sho@relinux.de>
>
> * There were also a few remarks from Peter Kosgaard, Alvaro Gamez and
> Thomas Petazonni. ?Could you include those?
>
> * See additional remarks below.
>
> ?If you don't have the time to do all this yourself, please let us know
> so someone else can take it over. ?Hopefully it won't fall between the
> cracks again :-)
>
> [snip]
>> diff --git a/configs/spartan6lx9_mb_defconfig b/configs/spartan6lx9_mb_defconfig
>> new file mode 100644
>> index 0000000..5ae1ede
>> --- /dev/null
>> +++ b/configs/spartan6lx9_mb_defconfig
>> @@ -0,0 +1,18 @@
>> +BR2_microblaze=y
>> +BR2_microblazel=y
>> +BR2_TOOLCHAIN_EXTERNAL=y
>> +BR2_TOOLCHAIN_EXTERNAL_PATH="/opt/microblazeel-unknown-linux-gnu/"
>> +BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX="microblazeel-unknown-linux-gnu"
>
> ?I don't think we should have defconfigs that depend on pre-extracted toolchains.
> Instead, the Xilinx toolchain should be added to the supported external toolchains
> like Sourcery.
>
>> +BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
>> +BR2_TOOLCHAIN_EXTERNAL_CXX=y
>
>> +BR2_TARGET_GENERIC_HOSTNAME="Microblaze Buildroot"
>> +BR2_TARGET_GENERIC_ISSUE="Welcome to Microblaze Buildroot"
> ?No need to change the defaults here.
>
>> +BR2_TARGET_GENERIC_GETTY_PORT="ttyUL0"
>> +# BR2_TARGET_ROOTFS_TAR is not set
>> +BR2_TARGET_ROOTFS_INITRAMFS=y
>> +BR2_LINUX_KERNEL=y
>> +BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
>> +BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(TOPDIR)/board/relinux/avnet_LX9MicroBoard/lx9_mmu_defconfig"
>> +BR2_LINUX_KERNEL_DTS_FILE="$(TOPDIR)/board/relinux/avnet_LX9MicroBoard/lx9_mmu.dts"
> ?The $(TOPDIR)/ is redundant: the build is always executed from $(TOPDIR).
>
>> +BR2_LINUX_KERNEL_IMAGE_TARGET_CUSTOM=y
>> +BR2_LINUX_KERNEL_IMAGE_TARGET_NAME="simpleImage.lx9_mmu"
>> diff --git a/linux/Config.in b/linux/Config.in
>> index 86dc32a..138feb3 100644
>> --- a/linux/Config.in
>> +++ b/linux/Config.in
>> @@ -120,6 +120,14 @@ config BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE
>> ? ? ? help
>> ? ? ? ? Path to the kernel configuration file
>>
>> +config BR2_LINUX_KERNEL_DTS_FILE
>> + ? ?string "Device Tree dts file location"
>> + ? ?depends on BR2_microblaze
>> + ? ?help
>> + ? ? ?Path from where the dts file has to be copied
>> + ? ? ?The final "custom target" name depends on the
>> + ? ? ?dts file name:
>> + ? ? ? ? ?<name>.dts --> simpleImage.<name>
> ?Device tree support isn't specific to microblaze. ?It's incredible that
> we didn't have that in buildroot yet! ?Can you make a separate patch to
> add device tree support? ?The generic device tree support of course
> wouldn't have the combination of zImage and .dtb into a simpleImage,
> so you'd have to add an explicit '$(MAKE) ....dtb' to the linux
> build commands.
>
> ?Of course, there should also be support to select an in-kernel dts
> (just like the in-kernel defconfigs).
>
>> ?#
>> ?# Binary format
>> ?#
>> diff --git a/linux/linux.mk b/linux/linux.mk
>> index ae236d4..ade867a 100644
>> --- a/linux/linux.mk
>> +++ b/linux/linux.mk
>> @@ -117,6 +117,18 @@ endef
>>
>> ?LINUX_POST_PATCH_HOOKS += LINUX_APPLY_PATCHES
>>
>> +ifeq ($(KERNEL_ARCH),microblaze)
>> +# on microblaze, we always want mkimage
>> +LINUX_DEPENDENCIES+=host-uboot-tools
>
> ?I think you should define a new image type BR2_LINUX_KERNEL_SIMPLEIMAGE
> for microblaze, and only add this dependency if that image type is chosen.
>
>
>> +
>> +define LINUX_COPY_DTS
>> + ? ?if test -f "$(BR2_LINUX_KERNEL_DTS_FILE)" ; then \
>> + ? ? ? ?cp $(BR2_LINUX_KERNEL_DTS_FILE) $(@D)/arch/microblaze/boot/dts ; \
>> + ? ?else \
>> + ? ? ? ?echo "Cannot copy dts file!" ; \
>> + ? ?fi
>> +endef
>
> ?The path should be $(KERNEL_ARCH_PATH)/boot/dts.
>
> ?It requires an mkdir -p to make sure the target directory exists.
>
> ?The test -f is redundant, since cp will simply fail and terminate the build
> if the source file doesn't exist.
>
> ?You also need an extra make variable to remove the quotes:
> LINUX_KERNEL_DTS_FILE = $(call qstrip,$(BR2_LINUX_KERNEL_DTS_FILE))
>
> ?And the define should be wrapped in a
> ifneq ($(LINUX_KERNEL_DTS_FILE),)
> ...
> endif
>
>> +endif
>>
>> ?ifeq ($(BR2_LINUX_KERNEL_USE_DEFCONFIG),y)
>> ?KERNEL_SOURCE_CONFIG = $(KERNEL_ARCH_PATH)/configs/$(call qstrip,$(BR2_LINUX_KERNEL_DEFCONFIG))_defconfig
>> @@ -131,6 +143,8 @@ define LINUX_CONFIGURE_CMDS
>> ? ? ? $(if $(BR2_ARM_EABI),
>> ? ? ? ? ? ? ? $(call KCONFIG_ENABLE_OPT,CONFIG_AEABI,$(@D)/.config),
>> ? ? ? ? ? ? ? $(call KCONFIG_DISABLE_OPT,CONFIG_AEABI,$(@D)/.config))
>> + ? ?$(if $(BR2_microblaze),
>> + ? ? ? ?$(call LINUX_COPY_DTS))
> ?No call is needed here, the COPY_DTS is not a function. ?And the
> condition isn't necessary: the variable will default to empty.
>
>> ? ? ? # As the kernel gets compiled before root filesystems are
>> ? ? ? # built, we create a fake cpio file. It'll be
>> ? ? ? # replaced later by the real cpio archive, and the kernel will be
>> @@ -215,6 +229,8 @@ $(LINUX_DIR)/.stamp_initramfs_rebuilt: $(LINUX_DIR)/.stamp_target_installed $(LI
>> ? ? ? $(TARGET_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) $(LINUX_IMAGE_NAME)
>> ? ? ? # Copy the kernel image to its final destination
>> ? ? ? cp $(LINUX_IMAGE_PATH) $(BINARIES_DIR)
>> + ? ? # If there is a .ub file copy it to the final destination
>> + ? ? test -f $(LINUX_IMAGE_PATH).ub && cp $(LINUX_IMAGE_PATH).ub $(BINARIES_DIR)
>> ? ? ? $(Q)touch $@
>>
>> ?# The initramfs building code must make sure this target gets called
>> diff --git a/target/Config.in.arch b/target/Config.in.arch
>> index 417441d..0524307 100644
>> --- a/target/Config.in.arch
>> +++ b/target/Config.in.arch
>> @@ -21,6 +21,8 @@ config BR2_i386
>> ?config BR2_m68k
>> ? ? ? bool "m68k"
>> ? ? ? depends on BROKEN # ice in uclibc / inet_ntoa_r
>> +config BR2_microblaze
>> + ? ?bool "microblaze"
>> ?config BR2_mips
>> ? ? ? bool "mips"
>> ?config BR2_mipsel
>> @@ -477,6 +479,19 @@ config BR2_powerpc_SPE
>> ? ? ? depends on BR2_powerpc_8540 || BR2_powerpc_8548 || BR2_powerpc_e500mc
>> ?endchoice
>>
>> +choice
>> + ? ? prompt "Target Endianess"
>> + ? ? depends on BR2_microblaze
>> + ? ? default BR2_microblazeel
>> + ? ? help
>> + ? ? ? Endianess of the Microblaze Processor
>> +
>> +config BR2_microblazeel
>> + ? ? bool "Little Endian"
>> +config BR2_microblazebe
>> + ? ? bool "Big Endian"
>> +endchoice
>
> ?For ARM and MIPS we define the endianness as the main architecture, not
> as a subarchitecture. ?I would do the same for microblaze.
>
> ?It does make sense to add a summarizing hidden BR2_microblaze, like this:
>
> config BR2_microblaze
> ? ? ? ?bool
> ? ? ? ?default y if BR2_microblazeel || BR2_microblazebe
>
>> +
>> ?config BR2_ARCH
>> ? ? ? string
>> ? ? ? default "arm" ? ? ? ? ? if BR2_arm
>> @@ -508,6 +523,7 @@ config BR2_ARCH
>> ? ? ? default "i686" ? ? ? ? ?if BR2_x86_athlon
>> ? ? ? default "i686" ? ? ? ? ?if BR2_x86_athlon_4
>> ? ? ? default "m68k" ? ? ? ? ?if BR2_m68k
>> + ? ? default "microblaze" ? ?if BR2_microblaze
>> ? ? ? default "mips" ? ? ? ? ?if BR2_mips
>> ? ? ? default "mipsel" ? ? ? ?if BR2_mipsel
>> ? ? ? default "powerpc" ? ? ? if BR2_powerpc
>> @@ -533,11 +549,13 @@ config BR2_ARCH
>>
>> ?config BR2_ENDIAN
>> ? ? ? string
>> - ? ? default "LITTLE" if BR2_arm || BR2_bfin || BR2_i386 || BR2_mipsel || \
>> - ? ? ? ? ? ? ? ? ? ? ? ? BR2_sh3 || BR2_sh4 || BR2_sh4a || BR2_x86_64 || BR2_sh64
>> + ? default "LITTLE" if BR2_arm || BR2_bfin || BR2_i386 || BR2_mipsel || \
>> + ? ? ? ? ? ? ? ? ? ? ? ? BR2_sh3 || BR2_sh4 || BR2_sh4a || BR2_x86_64 || BR2_sh64 || \
>> + ? ? ? ? ? ? ? ? ? ? ? ? BR2_microblazeel
>> ? ? ? default "BIG" ? ?if BR2_armeb || BR2_avr32 || BR2_m68k || BR2_mips || \
>> - ? ? ? ? ? ? ? ? ? ? ? ? BR2_powerpc || BR2_sh2 || BR2_sh2a || \
>> - ? ? ? ? ? ? ? ? ? ? ? ? BR2_sh3eb || BR2_sh4eb || BR2_sh4aeb || BR2_sparc
>> + ? ? ? ? ? ? ? ? ? ? ? ? BR2_powerpc || BR2_sh2 || BR2_sh2a || BR2_sh3eb || \
>> + ? ? ? ? ? ? ? ? ? ? ? ? BR2_sh4eb || BR2_sh4aeb || BR2_sparc || \
>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? BR2_microblazebe
>>
>> ?config BR2_GCC_TARGET_TUNE
>> ? ? ? string
>>
>
>
> ?Regards,
> ?Arnout
>
> --
> Arnout Vandecappelle ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? arnout at mind be
> Senior Embedded Software Architect ? ? ? ? ? ? ? ? +32-16-286540
> Essensium/Mind ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? http://www.mind.be
> G.Geenslaan 9, 3001 Leuven, Belgium ? ? ? ? ? ? ? ?BE 872 984 063 RPR Leuven
> LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
> GPG fingerprint: ?7CB5 E4CC 6C2E EFD4 6E3D A754 F963 ECAB 2450 2F1F



-- 
Spenser Gilliland
Computer Engineer
Illinois Institute of Technology

[Buildroot] [PATCH] Added microblaze patch

[Spenser Gilliland]

Arnout,

I'm running into an issue downloading the toolchain.  The toolchain is
located in a tar ball inside a git repo.  I tried the following in
toolchain/toolchain-external/ext-tool.mk and it works from the command
line but fails in a buildroot build.

ifeq ($(BR2_TOOLCHAIN_EXTERNAL_XILINX_MICROBLAZEBE_20),y)?
TOOLCHAIN_EXTERNAL_SITE="http://git.xilinx.com/?p=xldk/microblaze_v2.0.git;a=blob;f="?
TOOLCHAIN_EXTERNAL_SOURCE=microblaze-unknown-linux-gnu.tgz

It may be easier to just host these externally.  Is there a host
available for hosting tarballs?

Spenser

On Mon, Feb 13, 2012 at 6:07 PM, Spenser Gilliland <spenser309@gmail.com> wrote:
> Arnout,
>
> I agree with the comments. ?I'll get on it and have something ASAP. ?I
> want to have this in the coming release.
>
> Additionally, I have been working on a Microblaze specific patch which
> adds the ability to copy parameters.h to the required directory in
> uboot. ?This is required to build a working u-boot for a custom board.
>
> Spenser
>
>
>
> On Mon, Feb 13, 2012 at 3:37 PM, Arnout Vandecappelle <arnout@mind.be> wrote:
>> On Monday 13 February 2012 02:03:58 Spenser Gilliland wrote:
>>> Arnout,
>>>
>>> This is the patch with some minor adjustments. ?I've tested it using a big endian toolchain. ?Stephen used a little endian toolchain.
>>>
>>> I got rid of the BR2_GCC_TARGET_TUNE as the build errored out when I attempt it with the raw patch. ?The error stated that target tune was not supported by the compiler.
>>>
>>> Spenser
>>
>> ?Thanks for this patch!
>>
>> ?A few remarks:
>>
>> * Please add a relevant commit message. ?It starts with a single line
>> short description followed by an empty line. ?Then one or more paragraphs
>> of explanation (probably not much needed in this case). ?And finally, one
>> or more Signed-off-by lines.
>>
>> * Add a Signed-off-by line for yourself. ?This is a short way for you to
>> assert that you are entitled to contribute the patch under buildroot's
>> GPL license. ?See ?http://kerneltrap.org/files/Jeremy/DCO.txt for more
>> details.
>>
>> * In addition, include the Signed-off-by line of the original poster:
>> Signed-off-by: Stephan Hoffmann <sho@relinux.de>
>>
>> * There were also a few remarks from Peter Kosgaard, Alvaro Gamez and
>> Thomas Petazonni. ?Could you include those?
>>
>> * See additional remarks below.
>>
>> ?If you don't have the time to do all this yourself, please let us know
>> so someone else can take it over. ?Hopefully it won't fall between the
>> cracks again :-)
>>
>> [snip]
>>> diff --git a/configs/spartan6lx9_mb_defconfig b/configs/spartan6lx9_mb_defconfig
>>> new file mode 100644
>>> index 0000000..5ae1ede
>>> --- /dev/null
>>> +++ b/configs/spartan6lx9_mb_defconfig
>>> @@ -0,0 +1,18 @@
>>> +BR2_microblaze=y
>>> +BR2_microblazel=y
>>> +BR2_TOOLCHAIN_EXTERNAL=y
>>> +BR2_TOOLCHAIN_EXTERNAL_PATH="/opt/microblazeel-unknown-linux-gnu/"
>>> +BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX="microblazeel-unknown-linux-gnu"
>>
>> ?I don't think we should have defconfigs that depend on pre-extracted toolchains.
>> Instead, the Xilinx toolchain should be added to the supported external toolchains
>> like Sourcery.
>>
>>> +BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
>>> +BR2_TOOLCHAIN_EXTERNAL_CXX=y
>>
>>> +BR2_TARGET_GENERIC_HOSTNAME="Microblaze Buildroot"
>>> +BR2_TARGET_GENERIC_ISSUE="Welcome to Microblaze Buildroot"
>> ?No need to change the defaults here.
>>
>>> +BR2_TARGET_GENERIC_GETTY_PORT="ttyUL0"
>>> +# BR2_TARGET_ROOTFS_TAR is not set
>>> +BR2_TARGET_ROOTFS_INITRAMFS=y
>>> +BR2_LINUX_KERNEL=y
>>> +BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
>>> +BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(TOPDIR)/board/relinux/avnet_LX9MicroBoard/lx9_mmu_defconfig"
>>> +BR2_LINUX_KERNEL_DTS_FILE="$(TOPDIR)/board/relinux/avnet_LX9MicroBoard/lx9_mmu.dts"
>> ?The $(TOPDIR)/ is redundant: the build is always executed from $(TOPDIR).
>>
>>> +BR2_LINUX_KERNEL_IMAGE_TARGET_CUSTOM=y
>>> +BR2_LINUX_KERNEL_IMAGE_TARGET_NAME="simpleImage.lx9_mmu"
>>> diff --git a/linux/Config.in b/linux/Config.in
>>> index 86dc32a..138feb3 100644
>>> --- a/linux/Config.in
>>> +++ b/linux/Config.in
>>> @@ -120,6 +120,14 @@ config BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE
>>> ? ? ? help
>>> ? ? ? ? Path to the kernel configuration file
>>>
>>> +config BR2_LINUX_KERNEL_DTS_FILE
>>> + ? ?string "Device Tree dts file location"
>>> + ? ?depends on BR2_microblaze
>>> + ? ?help
>>> + ? ? ?Path from where the dts file has to be copied
>>> + ? ? ?The final "custom target" name depends on the
>>> + ? ? ?dts file name:
>>> + ? ? ? ? ?<name>.dts --> simpleImage.<name>
>> ?Device tree support isn't specific to microblaze. ?It's incredible that
>> we didn't have that in buildroot yet! ?Can you make a separate patch to
>> add device tree support? ?The generic device tree support of course
>> wouldn't have the combination of zImage and .dtb into a simpleImage,
>> so you'd have to add an explicit '$(MAKE) ....dtb' to the linux
>> build commands.
>>
>> ?Of course, there should also be support to select an in-kernel dts
>> (just like the in-kernel defconfigs).
>>
>>> ?#
>>> ?# Binary format
>>> ?#
>>> diff --git a/linux/linux.mk b/linux/linux.mk
>>> index ae236d4..ade867a 100644
>>> --- a/linux/linux.mk
>>> +++ b/linux/linux.mk
>>> @@ -117,6 +117,18 @@ endef
>>>
>>> ?LINUX_POST_PATCH_HOOKS += LINUX_APPLY_PATCHES
>>>
>>> +ifeq ($(KERNEL_ARCH),microblaze)
>>> +# on microblaze, we always want mkimage
>>> +LINUX_DEPENDENCIES+=host-uboot-tools
>>
>> ?I think you should define a new image type BR2_LINUX_KERNEL_SIMPLEIMAGE
>> for microblaze, and only add this dependency if that image type is chosen.
>>
>>
>>> +
>>> +define LINUX_COPY_DTS
>>> + ? ?if test -f "$(BR2_LINUX_KERNEL_DTS_FILE)" ; then \
>>> + ? ? ? ?cp $(BR2_LINUX_KERNEL_DTS_FILE) $(@D)/arch/microblaze/boot/dts ; \
>>> + ? ?else \
>>> + ? ? ? ?echo "Cannot copy dts file!" ; \
>>> + ? ?fi
>>> +endef
>>
>> ?The path should be $(KERNEL_ARCH_PATH)/boot/dts.
>>
>> ?It requires an mkdir -p to make sure the target directory exists.
>>
>> ?The test -f is redundant, since cp will simply fail and terminate the build
>> if the source file doesn't exist.
>>
>> ?You also need an extra make variable to remove the quotes:
>> LINUX_KERNEL_DTS_FILE = $(call qstrip,$(BR2_LINUX_KERNEL_DTS_FILE))
>>
>> ?And the define should be wrapped in a
>> ifneq ($(LINUX_KERNEL_DTS_FILE),)
>> ...
>> endif
>>
>>> +endif
>>>
>>> ?ifeq ($(BR2_LINUX_KERNEL_USE_DEFCONFIG),y)
>>> ?KERNEL_SOURCE_CONFIG = $(KERNEL_ARCH_PATH)/configs/$(call qstrip,$(BR2_LINUX_KERNEL_DEFCONFIG))_defconfig
>>> @@ -131,6 +143,8 @@ define LINUX_CONFIGURE_CMDS
>>> ? ? ? $(if $(BR2_ARM_EABI),
>>> ? ? ? ? ? ? ? $(call KCONFIG_ENABLE_OPT,CONFIG_AEABI,$(@D)/.config),
>>> ? ? ? ? ? ? ? $(call KCONFIG_DISABLE_OPT,CONFIG_AEABI,$(@D)/.config))
>>> + ? ?$(if $(BR2_microblaze),
>>> + ? ? ? ?$(call LINUX_COPY_DTS))
>> ?No call is needed here, the COPY_DTS is not a function. ?And the
>> condition isn't necessary: the variable will default to empty.
>>
>>> ? ? ? # As the kernel gets compiled before root filesystems are
>>> ? ? ? # built, we create a fake cpio file. It'll be
>>> ? ? ? # replaced later by the real cpio archive, and the kernel will be
>>> @@ -215,6 +229,8 @@ $(LINUX_DIR)/.stamp_initramfs_rebuilt: $(LINUX_DIR)/.stamp_target_installed $(LI
>>> ? ? ? $(TARGET_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) $(LINUX_IMAGE_NAME)
>>> ? ? ? # Copy the kernel image to its final destination
>>> ? ? ? cp $(LINUX_IMAGE_PATH) $(BINARIES_DIR)
>>> + ? ? # If there is a .ub file copy it to the final destination
>>> + ? ? test -f $(LINUX_IMAGE_PATH).ub && cp $(LINUX_IMAGE_PATH).ub $(BINARIES_DIR)
>>> ? ? ? $(Q)touch $@
>>>
>>> ?# The initramfs building code must make sure this target gets called
>>> diff --git a/target/Config.in.arch b/target/Config.in.arch
>>> index 417441d..0524307 100644
>>> --- a/target/Config.in.arch
>>> +++ b/target/Config.in.arch
>>> @@ -21,6 +21,8 @@ config BR2_i386
>>> ?config BR2_m68k
>>> ? ? ? bool "m68k"
>>> ? ? ? depends on BROKEN # ice in uclibc / inet_ntoa_r
>>> +config BR2_microblaze
>>> + ? ?bool "microblaze"
>>> ?config BR2_mips
>>> ? ? ? bool "mips"
>>> ?config BR2_mipsel
>>> @@ -477,6 +479,19 @@ config BR2_powerpc_SPE
>>> ? ? ? depends on BR2_powerpc_8540 || BR2_powerpc_8548 || BR2_powerpc_e500mc
>>> ?endchoice
>>>
>>> +choice
>>> + ? ? prompt "Target Endianess"
>>> + ? ? depends on BR2_microblaze
>>> + ? ? default BR2_microblazeel
>>> + ? ? help
>>> + ? ? ? Endianess of the Microblaze Processor
>>> +
>>> +config BR2_microblazeel
>>> + ? ? bool "Little Endian"
>>> +config BR2_microblazebe
>>> + ? ? bool "Big Endian"
>>> +endchoice
>>
>> ?For ARM and MIPS we define the endianness as the main architecture, not
>> as a subarchitecture. ?I would do the same for microblaze.
>>
>> ?It does make sense to add a summarizing hidden BR2_microblaze, like this:
>>
>> config BR2_microblaze
>> ? ? ? ?bool
>> ? ? ? ?default y if BR2_microblazeel || BR2_microblazebe
>>
>>> +
>>> ?config BR2_ARCH
>>> ? ? ? string
>>> ? ? ? default "arm" ? ? ? ? ? if BR2_arm
>>> @@ -508,6 +523,7 @@ config BR2_ARCH
>>> ? ? ? default "i686" ? ? ? ? ?if BR2_x86_athlon
>>> ? ? ? default "i686" ? ? ? ? ?if BR2_x86_athlon_4
>>> ? ? ? default "m68k" ? ? ? ? ?if BR2_m68k
>>> + ? ? default "microblaze" ? ?if BR2_microblaze
>>> ? ? ? default "mips" ? ? ? ? ?if BR2_mips
>>> ? ? ? default "mipsel" ? ? ? ?if BR2_mipsel
>>> ? ? ? default "powerpc" ? ? ? if BR2_powerpc
>>> @@ -533,11 +549,13 @@ config BR2_ARCH
>>>
>>> ?config BR2_ENDIAN
>>> ? ? ? string
>>> - ? ? default "LITTLE" if BR2_arm || BR2_bfin || BR2_i386 || BR2_mipsel || \
>>> - ? ? ? ? ? ? ? ? ? ? ? ? BR2_sh3 || BR2_sh4 || BR2_sh4a || BR2_x86_64 || BR2_sh64
>>> + ? default "LITTLE" if BR2_arm || BR2_bfin || BR2_i386 || BR2_mipsel || \
>>> + ? ? ? ? ? ? ? ? ? ? ? ? BR2_sh3 || BR2_sh4 || BR2_sh4a || BR2_x86_64 || BR2_sh64 || \
>>> + ? ? ? ? ? ? ? ? ? ? ? ? BR2_microblazeel
>>> ? ? ? default "BIG" ? ?if BR2_armeb || BR2_avr32 || BR2_m68k || BR2_mips || \
>>> - ? ? ? ? ? ? ? ? ? ? ? ? BR2_powerpc || BR2_sh2 || BR2_sh2a || \
>>> - ? ? ? ? ? ? ? ? ? ? ? ? BR2_sh3eb || BR2_sh4eb || BR2_sh4aeb || BR2_sparc
>>> + ? ? ? ? ? ? ? ? ? ? ? ? BR2_powerpc || BR2_sh2 || BR2_sh2a || BR2_sh3eb || \
>>> + ? ? ? ? ? ? ? ? ? ? ? ? BR2_sh4eb || BR2_sh4aeb || BR2_sparc || \
>>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? BR2_microblazebe
>>>
>>> ?config BR2_GCC_TARGET_TUNE
>>> ? ? ? string
>>>
>>
>>
>> ?Regards,
>> ?Arnout
>>
>> --
>> Arnout Vandecappelle ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? arnout at mind be
>> Senior Embedded Software Architect ? ? ? ? ? ? ? ? +32-16-286540
>> Essensium/Mind ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? http://www.mind.be
>> G.Geenslaan 9, 3001 Leuven, Belgium ? ? ? ? ? ? ? ?BE 872 984 063 RPR Leuven
>> LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
>> GPG fingerprint: ?7CB5 E4CC 6C2E EFD4 6E3D A754 F963 ECAB 2450 2F1F
>
>
>
> --
> Spenser Gilliland
> Computer Engineer
> Illinois Institute of Technology



-- 
Spenser Gilliland
Computer Engineer
Illinois Institute of Technology

[Buildroot] [PATCH] Added microblaze patch

[Spenser Gilliland]

Arnout,

I'm having an issue generating the dtb.  What is the command in the
kernel build needed to make a dts into a dtb. (should I just use dtc
directly?)

Spenser

On Mon, Feb 13, 2012 at 9:50 PM, Spenser Gilliland <spenser309@gmail.com> wrote:
> Arnout,
>
> I'm running into an issue downloading the toolchain. ?The toolchain is
> located in a tar ball inside a git repo. ?I tried the following in
> toolchain/toolchain-external/ext-tool.mk and it works from the command
> line but fails in a buildroot build.
>
> ifeq ($(BR2_TOOLCHAIN_EXTERNAL_XILINX_MICROBLAZEBE_20),y)?
> TOOLCHAIN_EXTERNAL_SITE="http://git.xilinx.com/?p=xldk/microblaze_v2.0.git;a=blob;f="?
> TOOLCHAIN_EXTERNAL_SOURCE=microblaze-unknown-linux-gnu.tgz
>
> It may be easier to just host these externally. ?Is there a host
> available for hosting tarballs?
>
> Spenser
>
> On Mon, Feb 13, 2012 at 6:07 PM, Spenser Gilliland <spenser309@gmail.com> wrote:
>> Arnout,
>>
>> I agree with the comments. ?I'll get on it and have something ASAP. ?I
>> want to have this in the coming release.
>>
>> Additionally, I have been working on a Microblaze specific patch which
>> adds the ability to copy parameters.h to the required directory in
>> uboot. ?This is required to build a working u-boot for a custom board.
>>
>> Spenser
>>
>>
>>
>> On Mon, Feb 13, 2012 at 3:37 PM, Arnout Vandecappelle <arnout@mind.be> wrote:
>>> On Monday 13 February 2012 02:03:58 Spenser Gilliland wrote:
>>>> Arnout,
>>>>
>>>> This is the patch with some minor adjustments. ?I've tested it using a big endian toolchain. ?Stephen used a little endian toolchain.
>>>>
>>>> I got rid of the BR2_GCC_TARGET_TUNE as the build errored out when I attempt it with the raw patch. ?The error stated that target tune was not supported by the compiler.
>>>>
>>>> Spenser
>>>
>>> ?Thanks for this patch!
>>>
>>> ?A few remarks:
>>>
>>> * Please add a relevant commit message. ?It starts with a single line
>>> short description followed by an empty line. ?Then one or more paragraphs
>>> of explanation (probably not much needed in this case). ?And finally, one
>>> or more Signed-off-by lines.
>>>
>>> * Add a Signed-off-by line for yourself. ?This is a short way for you to
>>> assert that you are entitled to contribute the patch under buildroot's
>>> GPL license. ?See ?http://kerneltrap.org/files/Jeremy/DCO.txt for more
>>> details.
>>>
>>> * In addition, include the Signed-off-by line of the original poster:
>>> Signed-off-by: Stephan Hoffmann <sho@relinux.de>
>>>
>>> * There were also a few remarks from Peter Kosgaard, Alvaro Gamez and
>>> Thomas Petazonni. ?Could you include those?
>>>
>>> * See additional remarks below.
>>>
>>> ?If you don't have the time to do all this yourself, please let us know
>>> so someone else can take it over. ?Hopefully it won't fall between the
>>> cracks again :-)
>>>
>>> [snip]
>>>> diff --git a/configs/spartan6lx9_mb_defconfig b/configs/spartan6lx9_mb_defconfig
>>>> new file mode 100644
>>>> index 0000000..5ae1ede
>>>> --- /dev/null
>>>> +++ b/configs/spartan6lx9_mb_defconfig
>>>> @@ -0,0 +1,18 @@
>>>> +BR2_microblaze=y
>>>> +BR2_microblazel=y
>>>> +BR2_TOOLCHAIN_EXTERNAL=y
>>>> +BR2_TOOLCHAIN_EXTERNAL_PATH="/opt/microblazeel-unknown-linux-gnu/"
>>>> +BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX="microblazeel-unknown-linux-gnu"
>>>
>>> ?I don't think we should have defconfigs that depend on pre-extracted toolchains.
>>> Instead, the Xilinx toolchain should be added to the supported external toolchains
>>> like Sourcery.
>>>
>>>> +BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
>>>> +BR2_TOOLCHAIN_EXTERNAL_CXX=y
>>>
>>>> +BR2_TARGET_GENERIC_HOSTNAME="Microblaze Buildroot"
>>>> +BR2_TARGET_GENERIC_ISSUE="Welcome to Microblaze Buildroot"
>>> ?No need to change the defaults here.
>>>
>>>> +BR2_TARGET_GENERIC_GETTY_PORT="ttyUL0"
>>>> +# BR2_TARGET_ROOTFS_TAR is not set
>>>> +BR2_TARGET_ROOTFS_INITRAMFS=y
>>>> +BR2_LINUX_KERNEL=y
>>>> +BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
>>>> +BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(TOPDIR)/board/relinux/avnet_LX9MicroBoard/lx9_mmu_defconfig"
>>>> +BR2_LINUX_KERNEL_DTS_FILE="$(TOPDIR)/board/relinux/avnet_LX9MicroBoard/lx9_mmu.dts"
>>> ?The $(TOPDIR)/ is redundant: the build is always executed from $(TOPDIR).
>>>
>>>> +BR2_LINUX_KERNEL_IMAGE_TARGET_CUSTOM=y
>>>> +BR2_LINUX_KERNEL_IMAGE_TARGET_NAME="simpleImage.lx9_mmu"
>>>> diff --git a/linux/Config.in b/linux/Config.in
>>>> index 86dc32a..138feb3 100644
>>>> --- a/linux/Config.in
>>>> +++ b/linux/Config.in
>>>> @@ -120,6 +120,14 @@ config BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE
>>>> ? ? ? help
>>>> ? ? ? ? Path to the kernel configuration file
>>>>
>>>> +config BR2_LINUX_KERNEL_DTS_FILE
>>>> + ? ?string "Device Tree dts file location"
>>>> + ? ?depends on BR2_microblaze
>>>> + ? ?help
>>>> + ? ? ?Path from where the dts file has to be copied
>>>> + ? ? ?The final "custom target" name depends on the
>>>> + ? ? ?dts file name:
>>>> + ? ? ? ? ?<name>.dts --> simpleImage.<name>
>>> ?Device tree support isn't specific to microblaze. ?It's incredible that
>>> we didn't have that in buildroot yet! ?Can you make a separate patch to
>>> add device tree support? ?The generic device tree support of course
>>> wouldn't have the combination of zImage and .dtb into a simpleImage,
>>> so you'd have to add an explicit '$(MAKE) ....dtb' to the linux
>>> build commands.
>>>
>>> ?Of course, there should also be support to select an in-kernel dts
>>> (just like the in-kernel defconfigs).
>>>
>>>> ?#
>>>> ?# Binary format
>>>> ?#
>>>> diff --git a/linux/linux.mk b/linux/linux.mk
>>>> index ae236d4..ade867a 100644
>>>> --- a/linux/linux.mk
>>>> +++ b/linux/linux.mk
>>>> @@ -117,6 +117,18 @@ endef
>>>>
>>>> ?LINUX_POST_PATCH_HOOKS += LINUX_APPLY_PATCHES
>>>>
>>>> +ifeq ($(KERNEL_ARCH),microblaze)
>>>> +# on microblaze, we always want mkimage
>>>> +LINUX_DEPENDENCIES+=host-uboot-tools
>>>
>>> ?I think you should define a new image type BR2_LINUX_KERNEL_SIMPLEIMAGE
>>> for microblaze, and only add this dependency if that image type is chosen.
>>>
>>>
>>>> +
>>>> +define LINUX_COPY_DTS
>>>> + ? ?if test -f "$(BR2_LINUX_KERNEL_DTS_FILE)" ; then \
>>>> + ? ? ? ?cp $(BR2_LINUX_KERNEL_DTS_FILE) $(@D)/arch/microblaze/boot/dts ; \
>>>> + ? ?else \
>>>> + ? ? ? ?echo "Cannot copy dts file!" ; \
>>>> + ? ?fi
>>>> +endef
>>>
>>> ?The path should be $(KERNEL_ARCH_PATH)/boot/dts.
>>>
>>> ?It requires an mkdir -p to make sure the target directory exists.
>>>
>>> ?The test -f is redundant, since cp will simply fail and terminate the build
>>> if the source file doesn't exist.
>>>
>>> ?You also need an extra make variable to remove the quotes:
>>> LINUX_KERNEL_DTS_FILE = $(call qstrip,$(BR2_LINUX_KERNEL_DTS_FILE))
>>>
>>> ?And the define should be wrapped in a
>>> ifneq ($(LINUX_KERNEL_DTS_FILE),)
>>> ...
>>> endif
>>>
>>>> +endif
>>>>
>>>> ?ifeq ($(BR2_LINUX_KERNEL_USE_DEFCONFIG),y)
>>>> ?KERNEL_SOURCE_CONFIG = $(KERNEL_ARCH_PATH)/configs/$(call qstrip,$(BR2_LINUX_KERNEL_DEFCONFIG))_defconfig
>>>> @@ -131,6 +143,8 @@ define LINUX_CONFIGURE_CMDS
>>>> ? ? ? $(if $(BR2_ARM_EABI),
>>>> ? ? ? ? ? ? ? $(call KCONFIG_ENABLE_OPT,CONFIG_AEABI,$(@D)/.config),
>>>> ? ? ? ? ? ? ? $(call KCONFIG_DISABLE_OPT,CONFIG_AEABI,$(@D)/.config))
>>>> + ? ?$(if $(BR2_microblaze),
>>>> + ? ? ? ?$(call LINUX_COPY_DTS))
>>> ?No call is needed here, the COPY_DTS is not a function. ?And the
>>> condition isn't necessary: the variable will default to empty.
>>>
>>>> ? ? ? # As the kernel gets compiled before root filesystems are
>>>> ? ? ? # built, we create a fake cpio file. It'll be
>>>> ? ? ? # replaced later by the real cpio archive, and the kernel will be
>>>> @@ -215,6 +229,8 @@ $(LINUX_DIR)/.stamp_initramfs_rebuilt: $(LINUX_DIR)/.stamp_target_installed $(LI
>>>> ? ? ? $(TARGET_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D) $(LINUX_IMAGE_NAME)
>>>> ? ? ? # Copy the kernel image to its final destination
>>>> ? ? ? cp $(LINUX_IMAGE_PATH) $(BINARIES_DIR)
>>>> + ? ? # If there is a .ub file copy it to the final destination
>>>> + ? ? test -f $(LINUX_IMAGE_PATH).ub && cp $(LINUX_IMAGE_PATH).ub $(BINARIES_DIR)
>>>> ? ? ? $(Q)touch $@
>>>>
>>>> ?# The initramfs building code must make sure this target gets called
>>>> diff --git a/target/Config.in.arch b/target/Config.in.arch
>>>> index 417441d..0524307 100644
>>>> --- a/target/Config.in.arch
>>>> +++ b/target/Config.in.arch
>>>> @@ -21,6 +21,8 @@ config BR2_i386
>>>> ?config BR2_m68k
>>>> ? ? ? bool "m68k"
>>>> ? ? ? depends on BROKEN # ice in uclibc / inet_ntoa_r
>>>> +config BR2_microblaze
>>>> + ? ?bool "microblaze"
>>>> ?config BR2_mips
>>>> ? ? ? bool "mips"
>>>> ?config BR2_mipsel
>>>> @@ -477,6 +479,19 @@ config BR2_powerpc_SPE
>>>> ? ? ? depends on BR2_powerpc_8540 || BR2_powerpc_8548 || BR2_powerpc_e500mc
>>>> ?endchoice
>>>>
>>>> +choice
>>>> + ? ? prompt "Target Endianess"
>>>> + ? ? depends on BR2_microblaze
>>>> + ? ? default BR2_microblazeel
>>>> + ? ? help
>>>> + ? ? ? Endianess of the Microblaze Processor
>>>> +
>>>> +config BR2_microblazeel
>>>> + ? ? bool "Little Endian"
>>>> +config BR2_microblazebe
>>>> + ? ? bool "Big Endian"
>>>> +endchoice
>>>
>>> ?For ARM and MIPS we define the endianness as the main architecture, not
>>> as a subarchitecture. ?I would do the same for microblaze.
>>>
>>> ?It does make sense to add a summarizing hidden BR2_microblaze, like this:
>>>
>>> config BR2_microblaze
>>> ? ? ? ?bool
>>> ? ? ? ?default y if BR2_microblazeel || BR2_microblazebe
>>>
>>>> +
>>>> ?config BR2_ARCH
>>>> ? ? ? string
>>>> ? ? ? default "arm" ? ? ? ? ? if BR2_arm
>>>> @@ -508,6 +523,7 @@ config BR2_ARCH
>>>> ? ? ? default "i686" ? ? ? ? ?if BR2_x86_athlon
>>>> ? ? ? default "i686" ? ? ? ? ?if BR2_x86_athlon_4
>>>> ? ? ? default "m68k" ? ? ? ? ?if BR2_m68k
>>>> + ? ? default "microblaze" ? ?if BR2_microblaze
>>>> ? ? ? default "mips" ? ? ? ? ?if BR2_mips
>>>> ? ? ? default "mipsel" ? ? ? ?if BR2_mipsel
>>>> ? ? ? default "powerpc" ? ? ? if BR2_powerpc
>>>> @@ -533,11 +549,13 @@ config BR2_ARCH
>>>>
>>>> ?config BR2_ENDIAN
>>>> ? ? ? string
>>>> - ? ? default "LITTLE" if BR2_arm || BR2_bfin || BR2_i386 || BR2_mipsel || \
>>>> - ? ? ? ? ? ? ? ? ? ? ? ? BR2_sh3 || BR2_sh4 || BR2_sh4a || BR2_x86_64 || BR2_sh64
>>>> + ? default "LITTLE" if BR2_arm || BR2_bfin || BR2_i386 || BR2_mipsel || \
>>>> + ? ? ? ? ? ? ? ? ? ? ? ? BR2_sh3 || BR2_sh4 || BR2_sh4a || BR2_x86_64 || BR2_sh64 || \
>>>> + ? ? ? ? ? ? ? ? ? ? ? ? BR2_microblazeel
>>>> ? ? ? default "BIG" ? ?if BR2_armeb || BR2_avr32 || BR2_m68k || BR2_mips || \
>>>> - ? ? ? ? ? ? ? ? ? ? ? ? BR2_powerpc || BR2_sh2 || BR2_sh2a || \
>>>> - ? ? ? ? ? ? ? ? ? ? ? ? BR2_sh3eb || BR2_sh4eb || BR2_sh4aeb || BR2_sparc
>>>> + ? ? ? ? ? ? ? ? ? ? ? ? BR2_powerpc || BR2_sh2 || BR2_sh2a || BR2_sh3eb || \
>>>> + ? ? ? ? ? ? ? ? ? ? ? ? BR2_sh4eb || BR2_sh4aeb || BR2_sparc || \
>>>> + ? ? ? ? ? ? ? ? ? ? ? ? ? ? BR2_microblazebe
>>>>
>>>> ?config BR2_GCC_TARGET_TUNE
>>>> ? ? ? string
>>>>
>>>
>>>
>>> ?Regards,
>>> ?Arnout
>>>
>>> --
>>> Arnout Vandecappelle ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? arnout at mind be
>>> Senior Embedded Software Architect ? ? ? ? ? ? ? ? +32-16-286540
>>> Essensium/Mind ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? http://www.mind.be
>>> G.Geenslaan 9, 3001 Leuven, Belgium ? ? ? ? ? ? ? ?BE 872 984 063 RPR Leuven
>>> LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
>>> GPG fingerprint: ?7CB5 E4CC 6C2E EFD4 6E3D A754 F963 ECAB 2450 2F1F
>>
>>
>>
>> --
>> Spenser Gilliland
>> Computer Engineer
>> Illinois Institute of Technology
>
>
>
> --
> Spenser Gilliland
> Computer Engineer
> Illinois Institute of Technology



-- 
Spenser Gilliland
Computer Engineer
Illinois Institute of Technology

[Buildroot] [PATCH] Added microblaze patch

[Arnout Vandecappelle]

On Tuesday 14 February 2012 06:02:26 Spenser Gilliland wrote:
> I'm having an issue generating the dtb.  What is the command in the
> kernel build needed to make a dts into a dtb. (should I just use dtc
> directly?)
> 

 As I mentioned in an earlier mail:

$(MAKE) <linux make flags> <dtc basename>.dtb

 Regards,
 Arnout

-- 
Arnout Vandecappelle                               arnout at mind be
Senior Embedded Software Architect                 +32-16-286540
Essensium/Mind                                     http://www.mind.be
G.Geenslaan 9, 3001 Leuven, Belgium                BE 872 984 063 RPR Leuven
LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
GPG fingerprint:  7CB5 E4CC 6C2E EFD4 6E3D A754 F963 ECAB 2450 2F1F
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[Buildroot] [PATCH] Added microblaze patch

[Spenser Gilliland]

Arnout,

I've tried a make target of both <DTS_NAME>.dtb and
$(KERNEL_ARCH_PATH/boot/<DTS_NAME>.dtb with no success.  Are you sure
this is correct?  I've tried this both within buildroot and just on a
kernel tree directly with the microblaze toolchain.

Spenser

On Tue, Feb 14, 2012 at 11:15 AM, Arnout Vandecappelle <arnout@mind.be> wrote:
> On Tuesday 14 February 2012 06:02:26 Spenser Gilliland wrote:
>
>> I'm having an issue generating the dtb.??What is the command in the
>
>> kernel build needed to make a dts into a dtb. (should I just use dtc
>
>> directly?)
>
>>
>
>
> As I mentioned in an earlier mail:
>
>
> $(MAKE) <linux make flags> <dtc basename>.dtb
>
>
> Regards,
>
> Arnout
>
>
> --
>
> Arnout Vandecappelle arnout at mind be
>
> Senior Embedded Software Architect +32-16-286540
>
> Essensium/Mind http://www.mind.be
>
> G.Geenslaan 9, 3001 Leuven, Belgium BE 872 984 063 RPR Leuven
>
> LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
>
> GPG fingerprint: 7CB5 E4CC 6C2E EFD4 6E3D A754 F963 ECAB 2450 2F1F
>
>



-- 
Spenser Gilliland
Computer Engineer
Illinois Institute of Technology

[Buildroot] [PATCH] Added microblaze patch

[Arnout Vandecappelle]

On Thursday 16 February 2012 22:28:08 Spenser Gilliland wrote:
> Arnout,
> 
> I've tried a make target of both <DTS_NAME>.dtb and
> $(KERNEL_ARCH_PATH/boot/<DTS_NAME>.dtb with no success.  Are you sure
> this is correct?  I've tried this both within buildroot and just on a
> kernel tree directly with the microblaze toolchain.

 I've never tried it myself, I've just looked at
http://www.denx.de/wiki/DULG/LinuxFDTBlob

 Regards,
 Arnout

-- 
Arnout Vandecappelle                               arnout at mind be
Senior Embedded Software Architect                 +32-16-286540
Essensium/Mind                                     http://www.mind.be
G.Geenslaan 9, 3001 Leuven, Belgium                BE 872 984 063 RPR Leuven
LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
GPG fingerprint:  7CB5 E4CC 6C2E EFD4 6E3D A754 F963 ECAB 2450 2F1F
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[Buildroot] [PATCH] Added microblaze patch

[Spenser Gilliland]

I can use the dtc directly.  This may be the best solution.  As that
interface appears to be non-uniform across architectures.

Spenser

On Sat, Feb 18, 2012 at 5:16 AM, Arnout Vandecappelle <arnout@mind.be> wrote:
> On Thursday 16 February 2012 22:28:08 Spenser Gilliland wrote:
>
>> Arnout,
>
>>
>
>> I've tried a make target of both <DTS_NAME>.dtb and
>
>> $(KERNEL_ARCH_PATH/boot/<DTS_NAME>.dtb with no success. Are you sure
>
>> this is correct? I've tried this both within buildroot and just on a
>
>> kernel tree directly with the microblaze toolchain.
>
>
> I've never tried it myself, I've just looked at
>
> http://www.denx.de/wiki/DULG/LinuxFDTBlob
>
>
> Regards,
>
> Arnout
>
>
> --
>
> Arnout Vandecappelle arnout at mind be
>
> Senior Embedded Software Architect +32-16-286540
>
> Essensium/Mind http://www.mind.be
>
> G.Geenslaan 9, 3001 Leuven, Belgium BE 872 984 063 RPR Leuven
>
> LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
>
> GPG fingerprint: 7CB5 E4CC 6C2E EFD4 6E3D A754 F963 ECAB 2450 2F1F
>
>



-- 
Spenser Gilliland
Computer Engineer
Illinois Institute of Technology

[Buildroot] [PATCH] Added microblaze patch

[Alvaro Gamez]

The problem is that wget tries to save the file as

index.html?p=xldk%2Fmicroblaze_v2.0.git;a=blob;f=microblaze-unknown-linux-gnu.tgz

so the expected file microblaze-unknown-linux-gnu.tgz doesn't appear. Maybe
it is possible to redefine DOWNLOAD_WGET with a third parameter that makes
wget execute with -O output.tar.gz option?

2012/2/14 Spenser Gilliland <spenser309@gmail.com>

> Arnout,
>
> I'm running into an issue downloading the toolchain.  The toolchain is
> located in a tar ball inside a git repo.  I tried the following in
> toolchain/toolchain-external/ext-tool.mk and it works from the command
> line but fails in a buildroot build.
>
> ifeq ($(BR2_TOOLCHAIN_EXTERNAL_XILINX_MICROBLAZEBE_20),y)?
> TOOLCHAIN_EXTERNAL_SITE="
> http://git.xilinx.com/?p=xldk/microblaze_v2.0.git;a=blob;f="?
> TOOLCHAIN_EXTERNAL_SOURCE=microblaze-unknown-linux-gnu.tgz
>
> It may be easier to just host these externally.  Is there a host
> available for hosting tarballs?
>
> Spenser
>
> On Mon, Feb 13, 2012 at 6:07 PM, Spenser Gilliland <spenser309@gmail.com>
> wrote:
> > Arnout,
> >
> > I agree with the comments.  I'll get on it and have something ASAP.  I
> > want to have this in the coming release.
> >
> > Additionally, I have been working on a Microblaze specific patch which
> > adds the ability to copy parameters.h to the required directory in
> > uboot.  This is required to build a working u-boot for a custom board.
> >
> > Spenser
> >
> >
> >
> > On Mon, Feb 13, 2012 at 3:37 PM, Arnout Vandecappelle <arnout@mind.be>
> wrote:
> >> On Monday 13 February 2012 02:03:58 Spenser Gilliland wrote:
> >>> Arnout,
> >>>
> >>> This is the patch with some minor adjustments.  I've tested it using a
> big endian toolchain.  Stephen used a little endian toolchain.
> >>>
> >>> I got rid of the BR2_GCC_TARGET_TUNE as the build errored out when I
> attempt it with the raw patch.  The error stated that target tune was not
> supported by the compiler.
> >>>
> >>> Spenser
> >>
> >>  Thanks for this patch!
> >>
> >>  A few remarks:
> >>
> >> * Please add a relevant commit message.  It starts with a single line
> >> short description followed by an empty line.  Then one or more
> paragraphs
> >> of explanation (probably not much needed in this case).  And finally,
> one
> >> or more Signed-off-by lines.
> >>
> >> * Add a Signed-off-by line for yourself.  This is a short way for you to
> >> assert that you are entitled to contribute the patch under buildroot's
> >> GPL license.  See  http://kerneltrap.org/files/Jeremy/DCO.txt for more
> >> details.
> >>
> >> * In addition, include the Signed-off-by line of the original poster:
> >> Signed-off-by: Stephan Hoffmann <sho@relinux.de>
> >>
> >> * There were also a few remarks from Peter Kosgaard, Alvaro Gamez and
> >> Thomas Petazonni.  Could you include those?
> >>
> >> * See additional remarks below.
> >>
> >>  If you don't have the time to do all this yourself, please let us know
> >> so someone else can take it over.  Hopefully it won't fall between the
> >> cracks again :-)
> >>
> >> [snip]
> >>> diff --git a/configs/spartan6lx9_mb_defconfig
> b/configs/spartan6lx9_mb_defconfig
> >>> new file mode 100644
> >>> index 0000000..5ae1ede
> >>> --- /dev/null
> >>> +++ b/configs/spartan6lx9_mb_defconfig
> >>> @@ -0,0 +1,18 @@
> >>> +BR2_microblaze=y
> >>> +BR2_microblazel=y
> >>> +BR2_TOOLCHAIN_EXTERNAL=y
> >>> +BR2_TOOLCHAIN_EXTERNAL_PATH="/opt/microblazeel-unknown-linux-gnu/"
> >>> +BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX="microblazeel-unknown-linux-gnu"
> >>
> >>  I don't think we should have defconfigs that depend on pre-extracted
> toolchains.
> >> Instead, the Xilinx toolchain should be added to the supported external
> toolchains
> >> like Sourcery.
> >>
> >>> +BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
> >>> +BR2_TOOLCHAIN_EXTERNAL_CXX=y
> >>
> >>> +BR2_TARGET_GENERIC_HOSTNAME="Microblaze Buildroot"
> >>> +BR2_TARGET_GENERIC_ISSUE="Welcome to Microblaze Buildroot"
> >>  No need to change the defaults here.
> >>
> >>> +BR2_TARGET_GENERIC_GETTY_PORT="ttyUL0"
> >>> +# BR2_TARGET_ROOTFS_TAR is not set
> >>> +BR2_TARGET_ROOTFS_INITRAMFS=y
> >>> +BR2_LINUX_KERNEL=y
> >>> +BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
> >>>
> +BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(TOPDIR)/board/relinux/avnet_LX9MicroBoard/lx9_mmu_defconfig"
> >>>
> +BR2_LINUX_KERNEL_DTS_FILE="$(TOPDIR)/board/relinux/avnet_LX9MicroBoard/lx9_mmu.dts"
> >>  The $(TOPDIR)/ is redundant: the build is always executed from
> $(TOPDIR).
> >>
> >>> +BR2_LINUX_KERNEL_IMAGE_TARGET_CUSTOM=y
> >>> +BR2_LINUX_KERNEL_IMAGE_TARGET_NAME="simpleImage.lx9_mmu"
> >>> diff --git a/linux/Config.in b/linux/Config.in
> >>> index 86dc32a..138feb3 100644
> >>> --- a/linux/Config.in
> >>> +++ b/linux/Config.in
> >>> @@ -120,6 +120,14 @@ config BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE
> >>>       help
> >>>         Path to the kernel configuration file
> >>>
> >>> +config BR2_LINUX_KERNEL_DTS_FILE
> >>> +    string "Device Tree dts file location"
> >>> +    depends on BR2_microblaze
> >>> +    help
> >>> +      Path from where the dts file has to be copied
> >>> +      The final "custom target" name depends on the
> >>> +      dts file name:
> >>> +          <name>.dts --> simpleImage.<name>
> >>  Device tree support isn't specific to microblaze.  It's incredible that
> >> we didn't have that in buildroot yet!  Can you make a separate patch to
> >> add device tree support?  The generic device tree support of course
> >> wouldn't have the combination of zImage and .dtb into a simpleImage,
> >> so you'd have to add an explicit '$(MAKE) ....dtb' to the linux
> >> build commands.
> >>
> >>  Of course, there should also be support to select an in-kernel dts
> >> (just like the in-kernel defconfigs).
> >>
> >>>  #
> >>>  # Binary format
> >>>  #
> >>> diff --git a/linux/linux.mk b/linux/linux.mk
> >>> index ae236d4..ade867a 100644
> >>> --- a/linux/linux.mk
> >>> +++ b/linux/linux.mk
> >>> @@ -117,6 +117,18 @@ endef
> >>>
> >>>  LINUX_POST_PATCH_HOOKS += LINUX_APPLY_PATCHES
> >>>
> >>> +ifeq ($(KERNEL_ARCH),microblaze)
> >>> +# on microblaze, we always want mkimage
> >>> +LINUX_DEPENDENCIES+=host-uboot-tools
> >>
> >>  I think you should define a new image type BR2_LINUX_KERNEL_SIMPLEIMAGE
> >> for microblaze, and only add this dependency if that image type is
> chosen.
> >>
> >>
> >>> +
> >>> +define LINUX_COPY_DTS
> >>> +    if test -f "$(BR2_LINUX_KERNEL_DTS_FILE)" ; then \
> >>> +        cp $(BR2_LINUX_KERNEL_DTS_FILE)
> $(@D)/arch/microblaze/boot/dts ; \
> >>> +    else \
> >>> +        echo "Cannot copy dts file!" ; \
> >>> +    fi
> >>> +endef
> >>
> >>  The path should be $(KERNEL_ARCH_PATH)/boot/dts.
> >>
> >>  It requires an mkdir -p to make sure the target directory exists.
> >>
> >>  The test -f is redundant, since cp will simply fail and terminate the
> build
> >> if the source file doesn't exist.
> >>
> >>  You also need an extra make variable to remove the quotes:
> >> LINUX_KERNEL_DTS_FILE = $(call qstrip,$(BR2_LINUX_KERNEL_DTS_FILE))
> >>
> >>  And the define should be wrapped in a
> >> ifneq ($(LINUX_KERNEL_DTS_FILE),)
> >> ...
> >> endif
> >>
> >>> +endif
> >>>
> >>>  ifeq ($(BR2_LINUX_KERNEL_USE_DEFCONFIG),y)
> >>>  KERNEL_SOURCE_CONFIG = $(KERNEL_ARCH_PATH)/configs/$(call
> qstrip,$(BR2_LINUX_KERNEL_DEFCONFIG))_defconfig
> >>> @@ -131,6 +143,8 @@ define LINUX_CONFIGURE_CMDS
> >>>       $(if $(BR2_ARM_EABI),
> >>>               $(call KCONFIG_ENABLE_OPT,CONFIG_AEABI,$(@D)/.config),
> >>>               $(call KCONFIG_DISABLE_OPT,CONFIG_AEABI,$(@D)/.config))
> >>> +    $(if $(BR2_microblaze),
> >>> +        $(call LINUX_COPY_DTS))
> >>  No call is needed here, the COPY_DTS is not a function.  And the
> >> condition isn't necessary: the variable will default to empty.
> >>
> >>>       # As the kernel gets compiled before root filesystems are
> >>>       # built, we create a fake cpio file. It'll be
> >>>       # replaced later by the real cpio archive, and the kernel will be
> >>> @@ -215,6 +229,8 @@ $(LINUX_DIR)/.stamp_initramfs_rebuilt:
> $(LINUX_DIR)/.stamp_target_installed $(LI
> >>>       $(TARGET_MAKE_ENV) $(MAKE) $(LINUX_MAKE_FLAGS) -C $(@D)
> $(LINUX_IMAGE_NAME)
> >>>       # Copy the kernel image to its final destination
> >>>       cp $(LINUX_IMAGE_PATH) $(BINARIES_DIR)
> >>> +     # If there is a .ub file copy it to the final destination
> >>> +     test -f $(LINUX_IMAGE_PATH).ub && cp $(LINUX_IMAGE_PATH).ub
> $(BINARIES_DIR)
> >>>       $(Q)touch $@
> >>>
> >>>  # The initramfs building code must make sure this target gets called
> >>> diff --git a/target/Config.in.arch b/target/Config.in.arch
> >>> index 417441d..0524307 100644
> >>> --- a/target/Config.in.arch
> >>> +++ b/target/Config.in.arch
> >>> @@ -21,6 +21,8 @@ config BR2_i386
> >>>  config BR2_m68k
> >>>       bool "m68k"
> >>>       depends on BROKEN # ice in uclibc / inet_ntoa_r
> >>> +config BR2_microblaze
> >>> +    bool "microblaze"
> >>>  config BR2_mips
> >>>       bool "mips"
> >>>  config BR2_mipsel
> >>> @@ -477,6 +479,19 @@ config BR2_powerpc_SPE
> >>>       depends on BR2_powerpc_8540 || BR2_powerpc_8548 ||
> BR2_powerpc_e500mc
> >>>  endchoice
> >>>
> >>> +choice
> >>> +     prompt "Target Endianess"
> >>> +     depends on BR2_microblaze
> >>> +     default BR2_microblazeel
> >>> +     help
> >>> +       Endianess of the Microblaze Processor
> >>> +
> >>> +config BR2_microblazeel
> >>> +     bool "Little Endian"
> >>> +config BR2_microblazebe
> >>> +     bool "Big Endian"
> >>> +endchoice
> >>
> >>  For ARM and MIPS we define the endianness as the main architecture, not
> >> as a subarchitecture.  I would do the same for microblaze.
> >>
> >>  It does make sense to add a summarizing hidden BR2_microblaze, like
> this:
> >>
> >> config BR2_microblaze
> >>        bool
> >>        default y if BR2_microblazeel || BR2_microblazebe
> >>
> >>> +
> >>>  config BR2_ARCH
> >>>       string
> >>>       default "arm"           if BR2_arm
> >>> @@ -508,6 +523,7 @@ config BR2_ARCH
> >>>       default "i686"          if BR2_x86_athlon
> >>>       default "i686"          if BR2_x86_athlon_4
> >>>       default "m68k"          if BR2_m68k
> >>> +     default "microblaze"    if BR2_microblaze
> >>>       default "mips"          if BR2_mips
> >>>       default "mipsel"        if BR2_mipsel
> >>>       default "powerpc"       if BR2_powerpc
> >>> @@ -533,11 +549,13 @@ config BR2_ARCH
> >>>
> >>>  config BR2_ENDIAN
> >>>       string
> >>> -     default "LITTLE" if BR2_arm || BR2_bfin || BR2_i386 ||
> BR2_mipsel || \
> >>> -                         BR2_sh3 || BR2_sh4 || BR2_sh4a || BR2_x86_64
> || BR2_sh64
> >>> +   default "LITTLE" if BR2_arm || BR2_bfin || BR2_i386 || BR2_mipsel
> || \
> >>> +                         BR2_sh3 || BR2_sh4 || BR2_sh4a || BR2_x86_64
> || BR2_sh64 || \
> >>> +                         BR2_microblazeel
> >>>       default "BIG"    if BR2_armeb || BR2_avr32 || BR2_m68k ||
> BR2_mips || \
> >>> -                         BR2_powerpc || BR2_sh2 || BR2_sh2a || \
> >>> -                         BR2_sh3eb || BR2_sh4eb || BR2_sh4aeb ||
> BR2_sparc
> >>> +                         BR2_powerpc || BR2_sh2 || BR2_sh2a ||
> BR2_sh3eb || \
> >>> +                         BR2_sh4eb || BR2_sh4aeb || BR2_sparc || \
> >>> +                             BR2_microblazebe
> >>>
> >>>  config BR2_GCC_TARGET_TUNE
> >>>       string
> >>>
> >>
> >>
> >>  Regards,
> >>  Arnout
> >>
> >> --
> >> Arnout Vandecappelle                               arnout at mind be
> >> Senior Embedded Software Architect                 +32-16-286540
> >> Essensium/Mind                                     http://www.mind.be
> >> G.Geenslaan 9, 3001 Leuven, Belgium                BE 872 984 063 RPR
> Leuven
> >> LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
> >> GPG fingerprint:  7CB5 E4CC 6C2E EFD4 6E3D A754 F963 ECAB 2450 2F1F
> >
> >
> >
> > --
> > Spenser Gilliland
> > Computer Engineer
> > Illinois Institute of Technology
>
>
>
> --
> Spenser Gilliland
> Computer Engineer
> Illinois Institute of Technology
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot
>



-- 
?lvaro G?mez Machado
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[Buildroot] [PATCH] Added microblaze patch

[Peter Korsgaard]

>>>>> "Alvaro" == Alvaro Gamez <alvaro.gamez@hazent.com> writes:

 Alvaro> The problem is that wget tries to save the file as
 Alvaro> index.html?p=xldk%2Fmicroblaze_v2.0.git;a=blob;f=
 Alvaro> microblaze-unknown-linux-gnu.tgz

 Alvaro> so the expected file microblaze-unknown-linux-gnu.tgz doesn't
 Alvaro> appear. Maybe it is possible to redefine DOWNLOAD_WGET with a
 Alvaro> third parameter that makes wget execute with -O output.tar.gz
 Alvaro> option?

Yes, I think so. I'll look into it. We had somewhat similar problems
with mpfr, where upstream provides a non-unique patch name (patches or
allpatches or something like that), where we would like to rename it to
mpfr-$VERSION-patches after download.

-- 
Bye, Peter Korsgaard

[Buildroot] [PATCH] DOWNLOAD_WGET: use -O instead of -P to set output file

[Arnout Vandecappelle]

From: "Arnout Vandecappelle (Essensium/Mind)" <arnout@mind.be>

Some URLs use url-encoded arguments to specify the file to download.
Wget will then use an output file name which includes all the ampersands
and such.  However, this is not what we see from buildroot.

E.g.:
FOO_SITE="http://git.foo.com/?p=foo.git;a=blob;f="
FOO_SOURCE="foo.tgz"

wget will download this into $(DL_DIR)/index.html?p=foo.git;a=blob;f=foo.tgz
buildroot thinks it's in $(DL_DIR)/foo.tgz

To make sure the view of wget and buildroot are consistent, specify
the output file explicitly.

Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
---
Alvaro, this should fix the download problem in a more generic way.
---
 package/Makefile.package.in |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/package/Makefile.package.in b/package/Makefile.package.in
index 33461b4..ea44c6c 100644
--- a/package/Makefile.package.in
+++ b/package/Makefile.package.in
@@ -238,7 +238,7 @@ endef
 
 define DOWNLOAD_WGET
 	test -e $(DL_DIR)/$(2) || \
-	$(WGET) -P $(DL_DIR) $(call qstrip,$(1))/$(2)
+	$(WGET) -O $(DL_DIR)/$(2) $(call qstrip,$(1))/$(2)
 endef
 
 define SOURCE_CHECK_WGET
-- 
1.7.8.3

[Buildroot] [PATCH] DOWNLOAD_WGET: use -O instead of -P to set output file

[Peter Korsgaard]

>>>>> "Arnout" == Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be> writes:

 Arnout> From: "Arnout Vandecappelle (Essensium/Mind)" <arnout@mind.be>
 Arnout> Some URLs use url-encoded arguments to specify the file to download.
 Arnout> Wget will then use an output file name which includes all the ampersands
 Arnout> and such.  However, this is not what we see from buildroot.

 Arnout> E.g.:
 Arnout> FOO_SITE="http://git.foo.com/?p=foo.git;a=blob;f="
 Arnout> FOO_SOURCE="foo.tgz"

Committed to next, thanks.

-- 
Bye, Peter Korsgaard

[Buildroot] Added microblaze patch

[Stephan Hoffmann]

Hello all,

there has been a lot of effort regarding the microblaze integration in
the last months. But there is still some work to be done to get it into
the buildroot tree.

Obviously, there are still some issues:

* Device-tree support
* SimpleImage support
* Toolchain download from the Xilinx site (see below)
* Some more improvements/flaws
* maybe more?

I rebased the patches (not the one with dts) to the current HEAD and
tested them (see seperate mail with patches).

Alvaro's Patch to load the toolchain from Xilinx does not work for me.
http://git.xilinx.com always ends up with a timeout leaving an empty
tgz-file in the dl folder after the third try. To come further I
downloaded the tgz manually.

After doing some fixes the whole build starting from "make
Avnet_S6LX9_MicroBoard_defconfig" in an empty folder works for me.

I am really interested in getting Microblaze into the next buildroot
release, and have some (little) time to contribute.

I just fixed some of Arnout's remarks, the others seem to be related to
the DTS and SimpleImage topic:

Am 13.02.2012 22:37, schrieb Arnout Vandecappelle:
> On Monday 13 February 2012 02:03:58 Spenser Gilliland wrote:
> +BR2_TOOLCHAIN_EXTERNAL=y
>> +BR2_TOOLCHAIN_EXTERNAL_PATH="/opt/microblazeel-unknown-linux-gnu/"
>> +BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX="microblazeel-unknown-linux-gnu"
>  I don't think we should have defconfigs that depend on pre-extracted toolchains.
> Instead, the Xilinx toolchain should be added to the supported external toolchains
> like Sourcery.
Downloading the Xilinx toolchain seems not to work. Should we really
insist in doing this automatically, since putting a tgz into a git
archive seems
kind of foolish. I think using a previously downloaded tgz file will be
good until
we can build our own toolchain.
> +BR2_TARGET_GENERIC_HOSTNAME="Microblaze Buildroot"
>> +BR2_TARGET_GENERIC_ISSUE="Welcome to Microblaze Buildroot"
>  No need to change the defaults here.
Removed these.
>> +BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(TOPDIR)/board/relinux/avnet_LX9MicroBoard/lx9_mmu_defconfig"
>> +BR2_LINUX_KERNEL_DTS_FILE="$(TOPDIR)/board/relinux/avnet_LX9MicroBoard/lx9_mmu.dts"
>  The $(TOPDIR)/ is redundant: the build is always executed from $(TOPDIR).
Removed these


Kind regards

Stephan


-- 
reLinux     -    Stephan Hoffmann
Am Schmidtgrund 124    50765 K?ln
Tel. +49.221.95595-19    Fax: -64
www.reLinux.de     sho at reLinux.de

[Buildroot] Added microblaze patch

[Alvaro Gamez]

Hi

2012/3/11 Stephan Hoffmann <sho@relinux.de>

> Alvaro's Patch to load the toolchain from Xilinx does not work for me.
> http://git.xilinx.com always ends up with a timeout leaving an empty
> tgz-file in the dl folder after the third try. To come further I
> downloaded the tgz manually.
>

I don't see the reason for this. I've downloaded it several times with no
problem. Maybe there has been some DNS issues or the server was down for a
while?


-- 
?lvaro G?mez Machado
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[Buildroot] Added microblaze patch

[Stephan Hoffmann]

Am 12.03.2012 11:58, schrieb Alvaro Gamez:
> Hi
>
> 2012/3/11 Stephan Hoffmann <sho at relinux.de <mailto:sho@relinux.de>>
>
>     Alvaro's Patch to load the toolchain from Xilinx does not work for me.
>     http://git.xilinx.com always ends up with a timeout leaving an empty
>     tgz-file in the dl folder after the third try. To come further I
>     downloaded the tgz manually.
>
>
> I don't see the reason for this. I've downloaded it several times with
> no problem. Maybe there has been some DNS issues or the server was
> down for a while?
I see, seems you are right. Now the download seems to work better. But
it loads a XML file. The URL wget tries to load is:

 
http://git.xilinx.com/?p=xldk/microblaze_v2.0_le.git;a=blob;hb=HEAD;f=/microblazeel-unknown-linux-gnu.tgz

This extra "/" in front of the filename seems to be the problem. In
fact, I don't know where it comes from;-(

When I use the version with the "h=d7..." it seems to work. possibly the
URL gets cut to:

 
http://git.xilinx.com/?p=xldk/microblaze_v2.0_le.git;a=blob;h=d7b493c5dbcc24ba9cc3be2e4c14d6d9701e6805

which is printed in the log.

In any case I have to add escape characters in front of the semicolons.
I'll send a patch fixing this.

Have a nice time

Stephan

>
>
> -- 
> ?lvaro G?mez Machado
>


-- 
reLinux     -    Stephan Hoffmann
Am Schmidtgrund 124    50765 K?ln
Tel. +49.221.95595-19    Fax: -64
www.reLinux.de     sho at reLinux.de


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[Buildroot] Added microblaze patch

[Arnout Vandecappelle]

On Monday 12 March 2012 19:03:22 Stephan Hoffmann wrote:
> I see, seems you are right. Now the download seems to work better. But
> it loads a XML file. The URL wget tries to load is:
> 
>  
> http://git.xilinx.com/?p=xldk/microblaze_v2.0_le.git;a=blob;hb=HEAD;f=/microblazeel-unknown-linux-gnu.tgz
> 
> This extra "/" in front of the filename seems to be the problem. In
> fact, I don't know where it comes from;-(

 Alvaro had patches that refactored the DOWNLOAD macro so the / was 
removed.  Did you apply those patches?

 Regards,
 Arnout

-- 
Arnout Vandecappelle                               arnout at mind be
Senior Embedded Software Architect                 +32-16-286540
Essensium/Mind                                     http://www.mind.be
G.Geenslaan 9, 3001 Leuven, Belgium                BE 872 984 063 RPR Leuven
LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
GPG fingerprint:  7CB5 E4CC 6C2E EFD4 6E3D A754 F963 ECAB 2450 2F1F

[Buildroot] Added microblaze patch

[Stephan Hoffmann]

Am 13.03.2012 23:35, schrieb Arnout Vandecappelle:
> On Monday 12 March 2012 19:03:22 Stephan Hoffmann wrote:
>> I see, seems you are right. Now the download seems to work better. But
>> it loads a XML file. The URL wget tries to load is:
>>
>>  
>> http://git.xilinx.com/?p=xldk/microblaze_v2.0_le.git;a=blob;hb=HEAD;f=/microblazeel-unknown-linux-gnu.tgz
>>
>> This extra "/" in front of the filename seems to be the problem. In
>> fact, I don't know where it comes from;-(
>  Alvaro had patches that refactored the DOWNLOAD macro so the / was 
> removed.  Did you apply those patches?
No, I missed them.

Thank you

Stephan
>  Regards,
>  Arnout
>


-- 
reLinux     -    Stephan Hoffmann
Am Schmidtgrund 124    50765 K?ln
Tel. +49.221.95595-19    Fax: -64
www.reLinux.de     sho at reLinux.de