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path: root/drivers/sysreset/sysreset_x86.c
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2020-04-16x86: Move acpi_s3.h to include/acpi/Simon Glass
This header relates to ACPI and we are about to add some more ACPI headers. Move this one into a new directory so they are together. The header inclusion in pci_rom.c is not specific to x86 anymore, so drop the #ifdef CONFIG_X86. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-10-08x86: Move acpi_s3.h to a common locationSimon Glass
At present this hedaer is only available on x86. To allow sandbox to use it for testing, move it to a common location. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-05-08x86: sysreset: Implement the get_last() methodSimon Glass
Add a default implementation of this method which always indicates that the last reset was a power-on reset. This is the most likely type of reset and without a PCH-specific driver we cannot determine any other type. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-05-08x86: sysreset: Implement power-off if availableSimon Glass
On modern x86 devices we can power the system off using the power- management features of the PCH. Add an implementation for this. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-05-08x86: sysreset: Separate out the EFI codeSimon Glass
The EFI implementation of reset sits inside the driver and is called directly from outside the driver, breaking the normal driver-model conventions. Worse, it passed NULL as the device pointer, hoping that the called function won't use it, which breaks as soon as code is added to use it. Separate out the implementation to improve the situation enough to allow a future patch to add new sysreset features. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-03-11x86: Add efi runtime resetAlexander Graf
Our selftest will soon test the actual runtime reset function rather than the boot time one. For this, we need to ensure that the runtime version actually succeeds on x86 to keep our travis tests work. So this patch implements an x86 runtime reset function. It is missing shutdown functionality today, but OSs usually implement that via ACPI and this function does more than the stub from before, so it's at least an improvement. Eventually we will want to have full DM functionality in runtime services. But this fixes a travis failure and doesn't clutter the code too heavily, so we should pull it in without the amazing new RTS DM framework. Signed-off-by: Alexander Graf <agraf@suse.de>
2018-11-14sysreset: Remove DM_FLAG_PRE_RELOC flag in various driversBin Meng
When a driver declares DM_FLAG_PRE_RELOC flag, it wishes to be bound before relocation. However due to a bug in the DM core, the flag only takes effect when devices are statically declared via U_BOOT_DEVICE(). This bug has been fixed recently by commit "dm: core: Respect drivers with the DM_FLAG_PRE_RELOC flag in lists_bind_fdt()", but with the fix, it has a side effect that all existing drivers that declared DM_FLAG_PRE_RELOC flag will be bound before relocation now. This may expose potential boot failure on some boards due to insufficient memory during the pre-relocation stage. To mitigate this potential impact, the following changes are implemented: - Remove DM_FLAG_PRE_RELOC flag in the driver, if the driver only supports configuration from device tree (OF_CONTROL) - Keep DM_FLAG_PRE_RELOC flag in the driver only if the device is statically declared via U_BOOT_DEVICE() - Surround DM_FLAG_PRE_RELOC flag with OF_CONTROL check, for drivers that support both statically declared devices and configuration from device tree Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-07-20dm: sysreset: x86: Add a sysreset driverBin Meng
This adds a generic reset driver for x86 processor. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>