Is there a recommended GNU toolchain for MPC560xB or can anyone recommend one?
sorry for delay.
Several tool vendors are supporting Qorivva/5xxx MCUs:
According to the info I found on the web P&E has a dev tool for Qorivva too which is based on GNU.
Please have a look at http://tinyurl.com/knqbe28
Note: GCC does not yet feature support for Freescale MPC56xx and MPC57xx devices.
The other PKG Qorivva components (PROG and ICD) fully support MPC56xx and MPC57xx devices.
Pemicro statement ... so you cannot use it for bolero
Another one using GNU:
Hightec supports 56xx and 57xx.
there is an evaluation version which can be downloaded on their web site:
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