projects / J-u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| ad8783cb PB |
1 | MIPS Boston Development Board |
| 2 | ||
| 3 | --------- | |
| 4 | About | |
| 5 | --------- | |
| 6 | ||
| 7 | The MIPS Boston development board is built around an FPGA & 3 PCIe controllers, | |
| 8 | one of which is connected to an Intel EG20T Platform Controller Hub which | |
| 9 | provides most connectivity to the board. It is used during the development & | |
| 10 | testing of both new CPUs and the software support for them. It is essentially | |
| 11 | the successor of the older MIPS Malta board. | |
| 12 | ||
| 13 | -------- | |
| 14 | QEMU | |
| 15 | -------- | |
| 16 | ||
| 17 | U-Boot can be run on a currently out-of-tree branch of QEMU with support for | |
| 18 | the Boston board added. This QEMU code can currently be found in the "boston" | |
| 19 | branch of git://git.linux-mips.org/pub/scm/paul/qemu.git and used like so: | |
| 20 | ||
| 21 | $ git clone git://git.linux-mips.org/pub/scm/paul/qemu.git -b boston | |
| 22 | $ cd qemu | |
| 23 | $ ./configure --target-list=mips64el-softmmu | |
| 24 | $ make | |
| 25 | $ ./mips64el-softmmu/qemu-system-mips64el -M boston -m 2G \ | |
| 26 | -bios u-boot.bin -serial stdio | |
| 27 | ||
| 28 | Please note that QEMU will default to emulating the I6400 CPU which implements | |
| 29 | the MIPS64r6 ISA, and at the time of writing doesn't implement any earlier CPUs | |
| 30 | with support for the CPS features the Boston board relies upon. You will | |
| 31 | therefore need to configure U-Boot to build for MIPSr6 in order to obtain a | |
| 32 | binary that will work in QEMU. | |
| 33 | ||
| 34 | ------------- | |
| 35 | Toolchain | |
| 36 | ------------- | |
| 37 | ||
| 38 | If building for MIPSr6 then you will need a toolchain including GCC 5.x or | |
| 39 | newer, or the Codescape toolchain available for download from Imagination | |
| 40 | Technologies: | |
| 41 | ||
| 42 | http://codescape-mips-sdk.imgtec.com/components/toolchain/2015.06-05/ | |
| 43 | ||
| 44 | The "IMG GNU Linux Toolchain" is capable of building for all current MIPS ISAs, | |
| 45 | architecture revisions & both endiannesses. | |
| 46 | ||
| 47 | -------- | |
| 48 | TODO | |
| 49 | -------- | |
| 50 | ||
| 51 | - AHCI support | |
| 52 | - CPU driver | |
| 53 | - Exception handling (+UHI?) | |
| 54 | - Flash support | |
| 55 | - IOCU support | |
| 56 | - L2 cache support | |
| 57 | - More general LCD display driver | |
| 58 | - Multi-arch-variant multi-endian fat binary |