tree e976f6c89782265f3a4939967c904c2345cac74f
parent cdf93470a065de6366f92b144ac48236ddfb1315
author Miodrag Dinic <miodrag.dinic@mips.com> 1514562107 +0100
committer James Hogan <jhogan@kernel.org> 1516654054 +0000
gpgsig -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEd80NauSabkiESfLYbAtpk944dnoFAlpmTeYACgkQbAtpk944
 dnpJYBAAneF/vQX/VyskNuFtRkogIqy7gcunudzYNAyJswUi0Wiq5lsBDvEayYLD
 GtyJBUanhkg9iiINFxC4x3c7A6eVezXGdU8MCb8FABeIzuscRUit/rLNJJh3yr1m
 TWybpjSFeaTf8UpQsZDed14d0aIB6r0ufNAFqJk2sJyKBJjMx0CaDvg08G6/hXpT
 gs/5ipY3vjbYqpzKU7cpKlsBkLwPxtsTuRYW73F13TGVmB51gfbh3g5VfhbbxdvN
 +BRjPfu2t4ZFdXAkAcvZ1F3SDLKAC+7yCLUWLylUfsIhSpJVoAJUQAnx63SfCMar
 dAAIoXUnMuiX4bK0HszpdxKh69/wn1chObxQNfsaT/K+BIOvOOrjS2LXzDyvUOve
 dvl5inueJ6u2uD+XyioXjia1ra8N5C3Utcjp0ctsM/H36durgb43zVTFUW+P3s26
 d4LXTzJ+mVWCEhhko720h5OHA4JRefjaVaWQtpdQ8J7MTfGzJgaIm4JKVjBTkUzQ
 xpcW0b0MxtWzt759F4VExbGLFYzos3GUKVSjZgbkArdro4SvldeCKWf4BM78xHco
 QOCBqOJ9heUymw1fvANJtBo36eJ6ve/DjqGMRFlModcOA7WK1xCylB9bqUiN0q4T
 kVOvVCVo6HymGGZ4K8niURc6OfliF2R0oDhjlU11YQr7csK10cc=
 =X1nH
 -----END PGP SIGNATURE-----

MIPS: ranchu: Add Ranchu as a new generic-based board

Provide amendments to the MIPS generic platform framework so that
the new generic-based board Ranchu can be chosen to be built.

The Ranchu board is intended to be used by Android emulator. The name
"Ranchu" originates from Android development community. "Goldfish" and
"Ranchu" are terms used for two generations of virtual boards used by
Android emulator. The name "Ranchu" is a newer one among the two, and
this patch deals with Ranchu. However, for historical reasons, some
devices/drivers still contain the name "Goldfish".

MIPS Ranchu machine includes a number of Goldfish devices. The support
for Virtio devices is also included. Ranchu board supports up to 16
Virtio devices which can be attached using Virtio MMIO Bus. This is
summarized in the following picture:

       ABUS
        ||----MIPS CPU
        ||       |                    IRQs
        ||----Goldfish PIC------------(32)--------
        ||                     | | | | | | | | |
        ||----Goldfish TTY------ | | | | | | | |
        ||                       | | | | | | | |
        ||----Goldfish RTC-------- | | | | | | |
        ||                         | | | | | | |
        ||----Goldfish FB----------- | | | | | |
        ||                           | | | | | |
        ||----Goldfish Events--------- | | | | |
        ||                             | | | | |
        ||----Goldfish Audio------------ | | | |
        ||                               | | | |
        ||----Goldfish Battery------------ | | |
        ||                                 | | |
        ||----Android PIPE------------------ | |
        ||                                   | |
        ||----Virtio MMIO Bus                | |
        ||    |    |    |                    | |
        ||    |    |   (virtio-block)--------- |
        ||   (16)  |                           |
        ||    |   (virtio-net)------------------

Device Tree is created on the QEMU side based on the information about
devices IO map and IRQ numbers. Kernel will load this DTB using UHI
boot protocol DTB handover mode.

Signed-off-by: Miodrag Dinic <miodrag.dinic@mips.com>
Signed-off-by: Goran Ferenc <goran.ferenc@mips.com>
Signed-off-by: Aleksandar Markovic <aleksandar.markovic@mips.com>
Reviewed-by: James Hogan <jhogan@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/18138/
Signed-off-by: James Hogan <jhogan@kernel.org>