Andrei Gherzan
3194c0bccf
raspberrypi*.conf: Remove vc4 configuration as we already default to it
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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>
2019-09-16 16:24:27 +01:00
Andrei Gherzan
a88c431f81
raspberrypi4-64: Remove the 3G RAM limitation
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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>
2019-08-16 15:17:26 +01:00
Andrei Gherzan
e9e3ad1920
raspberrypi4-64.conf: Limit RAM to 3G
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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>
2019-07-26 14:09:40 +01:00
Andrei Gherzan
ca13d79422
raspberrypi*: Define ARMSTUB for all machines
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Signed-off-by: Andrei Gherzan <andrei@gherzan.ro>
2019-07-20 21:56:21 +01:00
Andrei Gherzan
ccf0efea63
raspberrypi4-64.conf: Remove memory limitation
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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>
2019-07-20 21:56:21 +01:00
Andrei Gherzan
c775e7ff3a
raspberrypi4-64.conf: Uboot configuration and drop armstub
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We drop armstub configuration because the new firmware includes them.
Signed-off-by: Andrei Gherzan <andrei@gherzan.ro>
2019-07-20 21:56:21 +01:00
Andrei Gherzan
8dae8e3459
raspberrypi4-64.conf: Define a machine feature for armstubs
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Signed-off-by: Andrei Gherzan <andrei@gherzan.ro>
2019-07-20 21:56:21 +01:00
Andrei Gherzan
9e73b9eb9f
raspberrypi4-64.conf: Initial machine configuration
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Signed-off-by: Andrei Gherzan <andrei@gherzan.ro>
2019-07-20 21:56:21 +01:00
Andrei Gherzan
f30d4cfe70
raspberrypi4-64.conf: Introduce RPi arm64 machine
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Signed-off-by: Andrei Gherzan <andrei@gherzan.ro>
2019-07-20 21:56:21 +01:00
