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/*
 * Header providing constants for bcm2835 pinctrl bindings.
 *
 * Copyright (C) 2015 Stefan Wahren <stefan.wahren@i2se.com>
 *
 * The code contained herein is licensed under the GNU General Public
 * License. You may obtain a copy of the GNU General Public License
 * Version 2 at the following locations:
 *
 * http://www.opensource.org/licenses/gpl-license.html
 * http://www.gnu.org/copyleft/gpl.html
 */

#ifndef __DT_BINDINGS_PINCTRL_BCM2835_H__
#define __DT_BINDINGS_PINCTRL_BCM2835_H__

/* brcm,function property */
#define BCM2835_FSEL_GPIO_IN	0
#define BCM2835_FSEL_GPIO_OUT	1
#define BCM2835_FSEL_ALT5	2
#define BCM2835_FSEL_ALT4	3
#define BCM2835_FSEL_ALT0	4
#define BCM2835_FSEL_ALT1	5
#define BCM2835_FSEL_ALT2	6
#define BCM2835_FSEL_ALT3	7

/* brcm,pull property */
#define BCM2835_PUD_OFF		0
#define BCM2835_PUD_DOWN	1
#define BCM2835_PUD_UP		2

#endif /* __DT_BINDINGS_PINCTRL_BCM2835_H__ */
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 'net/bluetooth/rfcomm/Kconfig')