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Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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No need to hardcode sizes, sama5d3.dtsi has an "atmel,sama5d3-ddramc"
node, which we have a driver for that does dynamic memory size readout.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20230111174023.1719129-16-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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This DT is mainlined to the kernel. Now we can start using kernel
version. At same time it will fix SPI and KSZ switch detection.
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://lore.barebox.org/20220407085933.952078-1-o.rempel@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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We have one other DT-enabled SAMA5D3 board already:
microchip-ksz8477-evb, which is basically a sama5d3 xplained in
different form factor and with a switch. Mimic what we do there to get
rid of the sama5d3 board code.
Unlike the microchip-ksz9477-evb, the barebox support for this board
includes NAND, which is not yet up to date with respect to DT:
- SMC for NAND configuration has no DT driver. Instead the board
driver create this device
- We don't support the newer NAND DT bindings (EBI). The device trees
fix this up, so barebox sees the old bindings with the upstream
partition layout. In future, this could be fixed.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20210922065000.20970-6-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Many device trees upstream have moved to memory@BASE_ADDRESS for the
memory node instead of a unit-name-less memory node. This has resulted
in breakage[1] in barebox, because some device trees feature an upstream
memory size that's not available in all variants and the barebox device
tree must override it, not create a second correct node next to the broken
one and risk of_add_memory allocating banks with bogus sizes.
To avoid this happening in future, to memory or to other nodes, extension
of nodes should happen via phandles throughout, because a phandle is assumed
to be more stable and if one is removed a compile error results instead
of creating a new node somewhere. For nodes lacking a phandle, we can
use the &{/path} syntax to declare an anonymous phandle that will fail
to compile when the upstream path changes. This is better than having
devices fail to boot at runtime.
[1]: 0d26ce1c11a1 ("ARM: Phytec phyFLEX i.MX6: delete wrong memory node")
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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The EVB-KSZ9477 is an evaluation board for the KSZ9477 ethernet switch.
This board is equipped with a atsama5d3 SoC with 256MiB of SDRAM, 256MiB
of NAND flash and a SD card slot.
For now only second stage booting is supported with AT91bootstrap as
first stage loader.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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