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← Revision 8 as of 2016-10-25 20:23:38 ⇥
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| file. | file and the notes given in [[Getting_Started]]. Instructions how to get an extra serial/uart interface connected to your computer are [[PandaBoard/ExtraSerial|here]]. |
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| For cross-compiling to arm we are using the Mentor / codesourcery toolchain (v 2012.03): | In addition to the requirements listed in [[Getting_Started]], we are using the Ubuntu/Linaro toolchain for cross-compiling ARM. |
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| arm-linux-gnueabi-gcc (Sourcery CodeBench Lite 2012.03-57) 4.6.3 Copyright (C) 2011 Free Software Foundation, Inc. |
arm-linux-gnueabi-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.1) 5.4.0 20160609 Copyright (C) 2015 Free Software Foundation, Inc. |
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| We need to build for `armv7` and then run `make pandaboard_image`: | We need to build for `armv7` and then run `make PandaboardES`: |
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| $ make -j4 pandaboard_image | }}} Then run the following: {{{ $ make -j4 PandaboardES |
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| If your boot environment is correctly set up, you can now: usbboot ./pandaboard_image |
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This creates the boot image `armv7_omap44xx_image`. |
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| To boot `pandaboard_image` we need `usbboot` You can get `usbboot` source code from: https://github.com/swetland/omap4boot.git, but you will have to apply a patch: |
To boot `armv7_omap44xx_image` on a Pandaboard we need `usbboot`. The Barrelfish source tree now contains a copy of `usbboot`. Additional packages for building it are required: |
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$ git log -n 1 --pretty=short commit b6c998113173e38655c8c9b40d88776992bdcd78 Author: Dan Murphy <dmurphy@ti.com> OMAP4: Remove dummy writes to SDRC $ git diff diff --git a/aboot.c b/aboot.c index 6c12694..126e40a 100644 --- a/aboot.c +++ b/aboot.c @@ -34,7 +34,7 @@ #define WITH_MEMORY_TEST 0 #define WITH_FLASH_BOOT 0 -#define WITH_SIGNATURE_CHECK 1 +#define WITH_SIGNATURE_CHECK 0 #if WITH_MEMORY_TEST void memtest(void *x, unsigned count) { diff --git a/boot.c b/boot.c index 743e2e8..98ed777 100644 --- a/boot.c +++ b/boot.c @@ -42,8 +42,8 @@ int boot_image(unsigned machtype, unsigned image, unsigned len) if (x[n] != "ANDROID!"[n]) break; if (n != 8) { - printf("jumping to 0x%x...\n", CONFIG_ADDR_DOWNLOAD); - entry = CONFIG_ADDR_DOWNLOAD; + entry = CONFIG_ADDR_DOWNLOAD + 0x1000; + printf("jumping to 0x%x...\n", entry); entry(0, cfg_machine_type, CONFIG_ADDR_ATAGS); for (;;); } |
sudo apt-get install libusb-1.0-0-dev freebsd-glue libfreebsd-glue-0 libelf-freebsd-dev |
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| Building usbboot: | The Makefile will build `usbboot` on demand. It can be built explicitly using |
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| $ TOOLCHAIN=arm-none-linux-gnueabi- make ... link out/panda/usbboot ... |
make tools/bin/usbboot |
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| $ usbboot pandaboard_image using built-in 2ndstage.bin reading ASIC ID CHIP: 4440 ... sending image to target... |
make usbboot_panda |
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| You should see barrelfish booting on your `picocom` window: | You should see Barrelfish booting on your `picocom` window: |
Booting Barrelfish on PandaBoard
If you are building Barrelfish for the first time, please have a look at the README file and the notes given in Getting_Started.
Instructions how to get an extra serial/uart interface connected to your computer are here.
Toolchain
In addition to the requirements listed in Getting_Started, we are using the Ubuntu/Linaro toolchain for cross-compiling ARM.
$ arm-linux-gnueabi-gcc --version arm-linux-gnueabi-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.1) 5.4.0 20160609 Copyright (C) 2015 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Building a Barrelfish PandaBoard image
We need to build for armv7 and then run make PandaboardES:
$ mkdir build; cd build $ ../tip/hake/hake.sh -i . -s ../tip/ -a armv7
Then run the following:
$ make -j4 PandaboardES ... OK - pandaboard boot image is built.
This creates the boot image armv7_omap44xx_image.
Building usbboot
To boot armv7_omap44xx_image on a Pandaboard we need usbboot. The Barrelfish source tree now contains a copy of usbboot.
Additional packages for building it are required:
sudo apt-get install libusb-1.0-0-dev freebsd-glue libfreebsd-glue-0 libelf-freebsd-dev
The Makefile will build usbboot on demand. It can be built explicitly using
make tools/bin/usbboot
Booting barrelfish
Connect to the serial:
$ picocom -b 115200 /dev/ttyUSB0
And boot PandaBoard using usbboot
make usbboot_panda
You should see Barrelfish booting on your picocom window:
MMU enabled paging_arm_reset: base: 0x80000000, length: 0x40000000. invalidate cache invalidate TLB startup_early kernel_startup_early done! paging_map_device_section: 0x8400c000, 0xffe00000, 0x48020000. omap serial_init[2]: base = 0xffe00000 0xffe20000 omap serial_init[2]: done. Barrelfish CPU driver starting on ARMv7 OMAP44xx Board id 0x000008e0 ...