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/*
 * Device Tree constants for Microsemi VSC8531 PHY
 *
 * Author: Nagaraju Lakkaraju
 *
 * License: Dual MIT/GPL
 * Copyright (c) 2017 Microsemi Corporation
 */

#ifndef _DT_BINDINGS_MSCC_VSC8531_H
#define _DT_BINDINGS_MSCC_VSC8531_H

/* PHY LED Modes */
#define VSC8531_LINK_ACTIVITY           0
#define VSC8531_LINK_1000_ACTIVITY      1
#define VSC8531_LINK_100_ACTIVITY       2
#define VSC8531_LINK_10_ACTIVITY        3
#define VSC8531_LINK_100_1000_ACTIVITY  4
#define VSC8531_LINK_10_1000_ACTIVITY   5
#define VSC8531_LINK_10_100_ACTIVITY    6
#define VSC8531_DUPLEX_COLLISION        8
#define VSC8531_COLLISION               9
#define VSC8531_ACTIVITY                10
#define VSC8531_AUTONEG_FAULT           12
#define VSC8531_SERIAL_MODE             13
#define VSC8531_FORCE_LED_OFF           14
#define VSC8531_FORCE_LED_ON            15

#endif
ild/feature/test-lzma.c 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/build/feature/test-lzma.c')