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| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2021-03-04 10:49:45 +0100 |
|---|---|---|
| committer | Geert Uytterhoeven <geert+renesas@glider.be> | 2021-03-10 10:59:11 +0100 |
| commit | a4be49e75a1587391937ffaee29f0e0645546a9f (patch) | |
| tree | 470d99d5a458bbadd0f30f98ed63286402460b3a /drivers/usb/cdns3/cdns3-gadget.c | |
| parent | b1158c5e14b30396bb92f63a7a26ad7b85e70c06 (diff) | |
ARM: dts: rza2mevb: Upstream Linux requires SDRAM
As upstream Linux does not support XIP (eXecute-In-Place) for ARMv7-A
platforms that are part of the ARCH_MULTIPLATFORM framework, it cannot
run in the 8 MiB of HyperRAM present on the RZ/A2M CPU board. Hence the
64 MiB of SDRAM on the sub-board needs to be enabled, which has the
following ramifications:
- SCIF4 connected to the on-board USB-serial can no longer be used as
the serial console,
- Instead, SCIF2 is used as the serial console, by connecting a 3.3V
TTL USB-to-Serial adapter to the CMOS camera connector,
- The first Ethernet channel can no longer be used,
- USB Channel 1 loses the overcurrent input signal.
Based on the Linux-4.19 BSP for RZ/A2.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Chris Brandt <chris.brandt@renesas.com>
Link: https://lore.kernel.org/r/20210304094945.4003097-1-geert+renesas@glider.be
Diffstat (limited to 'drivers/usb/cdns3/cdns3-gadget.c')
0 files changed, 0 insertions, 0 deletions