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path: root/drivers/remoteproc/stm32_rproc.c
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2020-04-17remoteproc: pull in slab.hMichael S. Tsirkin1-0/+1
In preparation to virtio header changes, include slab.h directly as this module is using it. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-03-25remoteproc: stm32: demote warning about optional property absenceAhmad Fatoum1-1/+1
The mainline device trees lack the "st,syscfg-pdds", so probing the driver always throws the warning. As the property is optional per binding and the driver can deal with its absence, demote the warning to info log level. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.kernel.org/r/20200224172519.15315-1-a.fatoum@pengutronix.de Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-03-25remoteproc: Rename rproc_elf_sanity_check for elf32Clement Leger1-1/+1
Since this function will be modified to support both elf32 and elf64, rename the existing one to elf32 (which is the only supported format at the moment). This will allow not to introduce possible side effect when adding elf64 support (ie: all backends will still support only elf32 if not requested explicitely using rproc_elf_sanity_check). Signed-off-by: Clement Leger <cleger@kalray.eu> Link: https://lore.kernel.org/r/20200302093902.27849-6-cleger@kalray.eu Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-11-18remoteproc: stm32: fix probe error caseFabien Dessenne1-2/+15
If the rproc driver is probed before the mailbox driver and if the rproc Device Tree node has some mailbox properties, the rproc driver probe shall be deferred instead of being probed without mailbox support. Tested-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com> Link: https://lore.kernel.org/r/1573812188-19842-1-git-send-email-fabien.dessenne@st.com Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-11-14remoteproc: stm32: wakeup the system by wdg irqFabien Dessenne1-0/+45
If the device node defines the 'wakeup-source' property, use the WDG exti IRQ as a wakeup source of the system. Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com> Link: https://lore.kernel.org/r/1566833923-16718-3-git-send-email-fabien.dessenne@st.com [bjorn: Replace ifdef with __maybe_unused for suspend/resume functions] Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-11-08remoteproc: stm32: use workqueue to treat mailbox callbackArnaud Pouliquen1-5/+33
The mailbox callback is under interrupt context. A consequence is that RPMsg Callbacks are also in interrupt context. Create workqueue to treat the callbacks in normal context. Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-08-26remoteproc: stm32: manage the get_irq probe defer caseFabien Dessenne1-0/+3
Manage the -EPROBE_DEFER error case for "wdg" IRQ. Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-08-26remoteproc: stm32: clear MCU PDDS at firmware startFabien Dessenne1-0/+11
When remoteproc stops a firmware, it sets the MCU PDDS flag, allowing the platform to reach the Standby power mode if needed. Symmetrically, clear this flag before running a firmware. This fixes the issue where the system goes to Standby mode when the MCU crashes while MPU is in CSTOP mode. Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-07-08remoteproc: stm32: fix building without ARM SMCCArnd Bergmann1-1/+1
When compile testing this driver without SMCC support enabled, we get a link error: drivers/remoteproc/stm32_rproc.o: In function `stm32_rproc_start': stm32_rproc.c:(.text+0x776): undefined reference to `__arm_smccc_smc' drivers/remoteproc/stm32_rproc.o: In function `stm32_rproc_stop': stm32_rproc.c:(.text+0x92c): undefined reference to `__arm_smccc_smc' Make the actual call to arm_smccc_smc conditional on the Kconfig symbol controlling its implementation. Fixes: 13140de09cc2 ("remoteproc: stm32: add an ST stm32_rproc driver") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-06-29remoteproc: stm32: add an ST stm32_rproc driverFabien Dessenne1-0/+628
This patch introduces a new remoteproc driver to control Cortex-M4 co-processor of the STM32 family. It provides with the following features: - start and stop - dedicated co-processor memory regions registration - coredump and recovery Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com> Signed-off-by: Ludovic Barre <ludovic.barre@st.com> Signed-off-by: Loic Pallardy <loic.pallardy@st.com> Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com> [bjorn: Fixup of dev_dbg types and cast of int to pointer in mbox send] Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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