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path: root/include/dt-bindings/reset/stih415-resets.h
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/*
 * This header provides constants for the reset controller
 * based peripheral powerdown requests on the STMicroelectronics
 * STiH415 SoC.
 */
#ifndef _DT_BINDINGS_RESET_CONTROLLER_STIH415
#define _DT_BINDINGS_RESET_CONTROLLER_STIH415

#define STIH415_EMISS_POWERDOWN		0
#define STIH415_NAND_POWERDOWN		1
#define STIH415_KEYSCAN_POWERDOWN	2
#define STIH415_USB0_POWERDOWN		3
#define STIH415_USB1_POWERDOWN		4
#define STIH415_USB2_POWERDOWN		5
#define STIH415_SATA0_POWERDOWN		6
#define STIH415_SATA1_POWERDOWN		7
#define STIH415_PCIE_POWERDOWN		8

#define STIH415_ETH0_SOFTRESET		0
#define STIH415_ETH1_SOFTRESET		1
#define STIH415_IRB_SOFTRESET		2
#define STIH415_USB0_SOFTRESET		3
#define STIH415_USB1_SOFTRESET		4
#define STIH415_USB2_SOFTRESET		5
#define STIH415_KEYSCAN_SOFTRESET	6

#endif /* _DT_BINDINGS_RESET_CONTROLLER_STIH415 */
59cfc718d13a50fbc746ed9b415c25e92'>tools/perf/arch/parisc/Build parentbf29bddf0417a4783da3b24e8c9e017ac649326f (diff)
efi/fdt: Avoid FDT manipulation after ExitBootServices()
Some AArch64 UEFI implementations disable the MMU in ExitBootServices(), after which unaligned accesses to RAM are no longer supported. Commit: abfb7b686a3e ("efi/libstub/arm*: Pass latest memory map to the kernel") fixed an issue in the memory map handling of the stub FDT code, but inadvertently created an issue with such firmware, by moving some of the FDT manipulation to after the invocation of ExitBootServices(). Given that the stub's libfdt implementation uses the ordinary, accelerated string functions, which rely on hardware handling of unaligned accesses, manipulating the FDT with the MMU off may result in alignment faults. So fix the situation by moving the update_fdt_memmap() call into the callback function invoked by efi_exit_boot_services() right before it calls the ExitBootServices() UEFI service (which is arguably a better place for it anyway) Note that disabling the MMU in ExitBootServices() is not compliant with the UEFI spec, and carries great risk due to the fact that switching from cached to uncached memory accesses halfway through compiler generated code (i.e., involving a stack) can never be done in a way that is architecturally safe. Fixes: abfb7b686a3e ("efi/libstub/arm*: Pass latest memory map to the kernel") Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Tested-by: Riku Voipio <riku.voipio@linaro.org> Cc: <stable@vger.kernel.org> Cc: mark.rutland@arm.com Cc: linux-efi@vger.kernel.org Cc: matt@codeblueprint.co.uk Cc: leif.lindholm@linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1485971102-23330-2-git-send-email-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/perf/arch/parisc/Build')