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As of late[1], we defaulted to enabling vc4graphics in MACHINE_FEATURES.
Let's cleanup the machine configurations as per this change.
[1] https://github.com/agherzan/meta-raspberrypi/pull/417
Signed-off-by: Andrei Gherzan <andrei@gherzan.ro>
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The PCIe bounce buffers were ported[1] in the kernel so we can remove
this limitation now.
[1] https://github.com/raspberrypi/linux/pull/3144
Signed-off-by: Andrei Gherzan <andrei@gherzan.ro>
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The PCI controller on the Raspberry Pi 4 acts as a DMA controller and can
only address the first 3Gb[1] of the memory space. On 32bit this was
addressed by implementing bouncing buffers[2] but this currently has no
support for arm64. In order to have working USB, as a workaround, we
limit the ram to 3G.
Fixes #446
[1] https://github.com/raspberrypi/linux/issues/3093
[2] https://github.com/raspberrypi/linux/blob/rpi-4.19.y/drivers/pci/controller/pcie-brcmstb-bounce.c
Signed-off-by: Andrei Gherzan <andrei@gherzan.ro>
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Signed-off-by: Andrei Gherzan <andrei@gherzan.ro>
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We can do this because the kernel now includes a workaround for the DMA
issue.
https://github.com/raspberrypi/linux/pull/3080
Signed-off-by: Andrei Gherzan <andrei@gherzan.ro>
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We drop armstub configuration because the new firmware includes them.
Signed-off-by: Andrei Gherzan <andrei@gherzan.ro>
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Signed-off-by: Andrei Gherzan <andrei@gherzan.ro>
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Signed-off-by: Andrei Gherzan <andrei@gherzan.ro>
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Signed-off-by: Andrei Gherzan <andrei@gherzan.ro>
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Andrei Gherzan