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diff --git a/board/freescale/imx31_3stack/readme.txt b/board/freescale/imx31_3stack/readme.txt new file mode 100644 index 0000000000..4f8f393b12 --- /dev/null +++ b/board/freescale/imx31_3stack/readme.txt @@ -0,0 +1,92 @@ +************************************** +Freescale i.MX31 PDK development board +************************************** + +This file documents the Buildroot support for the Freescale i.MX31 PDK in "3 +stack" configuration. + +The i.MX31 Product Development Kit (or PDK) is Freescale development board [1] +based on the i.MX31 application processor [2]. + +For more details on the i.MX31 PDK board, refer to the User's Guide [3]. + +Build +===== + +First, configure Buildroot for your i.MX31 PDK board: + + make freescale_imx31_3stack_defconfig + +Build all components: + + make + +You will find in ./output/images/ the following files: + - rootfs.cpio + - rootfs.cpio.gz + - rootfs.tar + - zImage + +The generated zImage does include the rootfs. + +Boot the PDK board +================== + +The i.MX31 PDK contains a RedBoot bootloader in flash, which can be used to +boot the newly created Buildroot images from the network. + +This necessitates to setup a TFTP server first. This setup is explained for +example in Freescale i.MX31 PDK 1.5 Linux User's Guide [4]. + +Here is a sample RedBoot configuration, for proper network boot of Buildroot on +the i.MX31 PDK: + + RedBoot> fconfig -l + Run script at boot: true + Boot script: + .. load -r -b 0x100000 zImage + .. exec -c "console=ttymxc0,115200" + + Boot script timeout (1000ms resolution): 2 + Use BOOTP for network configuration: false + Gateway IP address: <your gateway IP address> + Local IP address: <your PDK IP address> + Local IP address mask: 255.255.255.0 + Default server IP address: <your TFTP server IP address> + Board specifics: 0 + Console baud rate: 115200 + Set eth0 network hardware address [MAC]: false + GDB connection port: 9000 + Force console for special debug messages: false + Network debug at boot time: false + +Adapt those settings to your network configuration by replacing the appropriate +network addresses where necessary. + +You might want to verify that your i.MX31 PDK switches settings are the correct +ones for UART, power, boot mode, etc. Here is a reference switches +configuration: + + SW4 + 1 2 3 4 5 6 7 8 + ON off off off off off off ON + + SW5 SW6 SW7 SW8 SW9 SW10 + 0 1 0 0 0 0 + +See the i.MX31 PDK Linux Quick Start Guide [5] for more details on the switches +settings. + +Connect a serial terminal set to 115200n8 and power on the i.MX31 PDK board. +Buildroot will present a login prompt on the serial port. + +Enjoy! + +References +========== + +[1] http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=i.MX31PDK +[2] http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=i.MX31 +[3] http://cache.freescale.com/files/32bit/doc/user_guide/pdk15_imx31_Hardware_UG.pdf +[4] http://cache.freescale.com/files/32bit/doc/support_info/IMX31_PDK15_LINUXDOCS_BUNDLE.zip, pdk15_imx31__Linux_UG.pdf +[5] http://www.freescale.com/files/32bit/doc/quick_ref_guide/PDK14LINUXQUICKSTART.pdf |
