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* metag: Remove arch/metag/James Hogan2018-02-221-25/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The earliest Meta architecture port of Linux I have a record of was an import of a Meta port of Linux v2.4.1 in February 2004, which was worked on significantly over the next few years by Graham Whaley, Will Newton, Matt Fleming, myself and others. Eventually the port was merged into mainline in v3.9 in March 2013, not long after Imagination Technologies bought MIPS Technologies and shifted its CPU focus over to the MIPS architecture. As a result, though the port was maintained for a while, kept on life support for a while longer, and useful for testing a few specific drivers for which I don't have ready access to the equivalent MIPS hardware, it is now essentially dead with no users. It is also stuck using an out-of-tree toolchain based on GCC 4.2.4 which is no longer maintained, now struggles to build modern kernels due to toolchain bugs, and doesn't itself build with a modern GCC. The latest buildroot port is still using an old uClibc snapshot which is no longer served, and the latest uClibc doesn't build with GCC 4.2.4. So lets call it a day and drop the Meta architecture port from the kernel. RIP Meta. Signed-off-by: James Hogan <jhogan@kernel.org> Link: https://lkml.kernel.org/r/95906b76-6ce1-3f84-eaba-c29b4ae952eb@roeck-us.net Reviewed-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Graham Whaley <graham.whaley@gmail.com> Cc: linux-metag@vger.kernel.org
* metag: export _metag_da_present and cpu_2_hwthread_idJames Hogan2013-03-271-0/+2
| | | | | | | Export the symbols _metag_da_present and cpu_2_hwthread_id to modules (GPL only) to allow the imgdafs file system to be built as a module. Signed-off-by: James Hogan <james.hogan@imgtec.com>
* metag: Add JTAG Debug Adapter (DA) supportJames Hogan2013-03-021-0/+23
Add basic JTAG Debug Adapter (DA) support so that drivers which communicate with the DA can detect whether one is actually present (otherwise the target will halt indefinitely). This allows the metag_da TTY driver and imgdafs filesystem driver to be built, updates defconfigs, and sets up the metag_da console early if it's configured in. Signed-off-by: James Hogan <james.hogan@imgtec.com>
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