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The arm dts directory has grown to 1559 boards which makes it a bit
unwieldy to maintain and use. Past attempts stalled out due to plans to
move .dts files out of the kernel tree. Doing that is no longer planned
(any time soon at least), so let's go ahead and group .dts files by
vendors. This move aligns arm with arm64 .dts file structure.
There's no change to dtbs_install as the flat structure is maintained on
install.
The naming of vendor directories is roughly in this order of preference:
- Matching original and current SoC vendor prefix/name (e.g. ti, qcom)
- Current vendor prefix/name if still actively sold (SoCs which have
been aquired) (e.g. nxp/imx)
- Existing platform name for older platforms not sold/maintained by any
company (e.g. gemini, nspire)
The whole move was scripted with the exception of MAINTAINERS and a few
makefile fixups.
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Michal Simek <michal.simek@amd.com> #Xilinx
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Neil Armstrong <neil.armstrong@linaro.org>
Acked-by: Paul Barker <paul.barker@sancloud.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Wei Xu <xuwei5@hisilicon.com> #hisilicon
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Nick Hawkins <nick.hawkins@hpe.com>
Acked-by: Baruch Siach <baruch@tkos.co.il>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Acked-by: Peter Rosin <peda@axentia.se>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com> #broadcom
Acked-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Jisheng Zhang <jszhang@kernel.org>
Acked-by: Patrice Chotard <patrice.chotard@foss.st.com>
Acked-by: Romain Perier <romain.perier@gmail.com>
Acked-by: Alexandre TORGUE <alexandre.torgue@st.com>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Acked-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Acked-by: Enric Balletbo i Serra <eballetbo@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
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Delete the node fixed clock managed by secure world with SCMI.
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@foss.st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
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Fixes stm32mp15*-scmi DTS files introduced in [1] to also access PWR
regulators through SCMI service. This is needed since enabling secure
only access to RCC clock and reset controllers also enables secure
access only on PWR voltage regulators reg11, reg18 and usb33 hence
these must also be accessed through SCMI Voltage Domain protocol.
This change applies on commit [2] that already corrects issues from
commit [1].
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Link: [1] https://lore.kernel.org/linux-arm-kernel/20220422150952.20587-7-alexandre.torgue@foss.st.com
Link: [2] https://lore.kernel.org/linux-arm-kernel/20220613071920.5463-1-alexandre.torgue@foss.st.com
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
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Adding a "secure" version of STM32 boards (DK1/DK2/ED1/EV1), SCMI (clock/
reset) protocol and OP-TEE node have been added in SoC dtsi file
(stm32mp151.dtsi). They have been added with a status disabled in order to
keep our legacy unchanged. It is actually not enough to keep our legacy
unchanged.
First, just a reminder about our use case: TF-A (BL2) loads and starts
OP-TEE, then loads and runs U-Boot. U-Boot code checks if an OP-TEE is
running, if yes it searches in Kernel device tree if an OP-TEE node is
present:
-If the OP-TEE node is not present then U-Boot copies OP-TEE node and its
reserved memory region from U-Boot device tree to the kernel device tree.
-If the OP-TEE node is present then it does nothing (this OP-TEE node will
be used by Linux). So U-Boot lets the kernel device tree unchanged thinking
it is correct for an OP-TEE usage. It is the case for our legacy boards,
the OP-TEE node is present (although disabled) but the reserved memory
region is not declared. As no memory region has been reserved for OP-TEE,
the end of DDR is seen by the kernel as free and then used for CMA. But as
OP-TEE is running, this end of DDR is already used by OP-TEE. So as soon as
kernel tries to access to the CMA region OP-TEE raises an error.
To fix it, all OP-TEE node and SCMI is moved in a dedicated file.
Fixes: 40b4157dbd8c ("ARM: dts: stm32: enable optee firmware and SCMI support on STM32MP15")
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
Link: https://lore.kernel.org/r/20220613071920.5463-1-alexandre.torgue@foss.st.com'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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