/* * bits.h - register bits of the ChipIdea USB IP core * * Copyright (C) 2008 Chipidea - MIPS Technologies, Inc. All rights reserved. * * Author: David Lopo * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #ifndef __DRIVERS_USB_CHIPIDEA_BITS_H #define __DRIVERS_USB_CHIPIDEA_BITS_H #include /* * ID * For 1.x revision, bit24 - bit31 are reserved * For 2.x revision, bit25 - bit28 are 0x2 */ #define TAG (0x1F << 16) #define REVISION (0xF << 21) #define VERSION (0xF << 25) #define CIVERSION (0x7 << 29) /* SBUSCFG */ #define AHBBRST_MASK 0x7 /* HCCPARAMS */ #define HCCPARAMS_LEN BIT(17) /* DCCPARAMS */ #define DCCPARAMS_DEN (0x1F << 0) #define DCCPARAMS_DC BIT(7) #define DCCPARAMS_HC BIT(8) /* TESTMODE */ #define TESTMODE_FORCE BIT(0) /* USBCMD */ #define USBCMD_RS BIT(0) #define USBCMD_RST BIT(1) #define USBCMD_SUTW BIT(13) #define USBCMD_ATDTW BIT(14) /* USBSTS & USBINTR */ #define USBi_UI BIT(0) #define USBi_UEI BIT(1) #define USBi_PCI BIT(2) #define USBi_URI BIT(6) #define USBi_SLI BIT(8) /* DEVICEADDR */ #define DEVICEADDR_USBADRA BIT(24) #define DEVICEADDR_USBADR (0x7FUL << 25) /* TTCTRL */ #define TTCTRL_TTHA_MASK (0x7fUL << 24) /* Set non-zero value for internal TT Hub address representation */ #define TTCTRL_TTHA (0x7fUL << 24) /* BURSTSIZE */ #define RX_BURST_MASK 0xff #define TX_BURST_MASK 0xff00 /* PORTSC */ #define PORTSC_CCS BIT(0) #define PORTSC_CSC BIT(1) #define PORTSC_PEC BIT(3) #define PORTSC_OCC BIT(5) #define PORTSC_FPR BIT(6) #define PORTSC_SUSP BIT(7) #define PORTSC_HSP BIT(9) #define PORTSC_PP BIT(12) #define PORTSC_PTC (0x0FUL << 16) #define PORTSC_WKCN BIT(20) #define PORTSC_PHCD(d) ((d) ? BIT(22) : BIT(23)) /* PTS and PTW for non lpm version only */ #define PORTSC_PFSC BIT(24) #define PORTSC_PTS(d) \ (u32)((((d) & 0x3) << 30) | (((d) & 0x4) ? BIT(25) : 0)) #define PORTSC_PTW BIT(28) #define PORTSC_STS BIT(29) #define PORTSC_W1C_BITS \ (PORTSC_CSC | PORTSC_PEC | PORTSC_OCC) /* DEVLC */ #define DEVLC_PFSC BIT(23) #define DEVLC_PSPD (0x03UL << 25) #define DEVLC_PSPD_HS (0x02UL << 25) #define DEVLC_PTW BIT(27) #define DEVLC_STS BIT(28) #define DEVLC_PTS(d) (u32)(((d) & 0x7) << 29) /* Encoding for DEVLC_PTS and PORTSC_PTS */ #define PTS_UTMI 0 #define PTS_ULPI 2 #define PTS_SERIAL 3 #define PTS_HSIC 4 /* OTGSC */ #define OTGSC_IDPU BIT(5) #define OTGSC_HADP BIT(6) #define OTGSC_HABA BIT(7) #define OTGSC_ID BIT(8) #define OTGSC_AVV BIT(9) #define OTGSC_ASV BIT(10) #define OTGSC_BSV BIT(11) #define OTGSC_BSE BIT(12) #define OTGSC_IDIS BIT(16) #define OTGSC_AVVIS BIT(17) #define OTGSC_ASVIS BIT(18) #define OTGSC_BSVIS BIT(19) #define OTGSC_BSEIS BIT(20) #define OTGSC_1MSIS BIT(21) #define OTGSC_DPIS BIT(22) #define OTGSC_IDIE BIT(24) #define OTGSC_AVVIE BIT(25) #define OTGSC_ASVIE BIT(26) #define OTGSC_BSVIE BIT(27) #define OTGSC_BSEIE BIT(28) #define OTGSC_1MSIE BIT(29) #define OTGSC_DPIE BIT(30) #define OTGSC_INT_EN_BITS (OTGSC_IDIE | OTGSC_AVVIE | OTGSC_ASVIE \ | OTGSC_BSVIE | OTGSC_BSEIE | OTGSC_1MSIE \ | OTGSC_DPIE) #define OTGSC_INT_STATUS_BITS (OTGSC_IDIS | OTGSC_AVVIS | OTGSC_ASVIS \ | OTGSC_BSVIS | OTGSC_BSEIS | OTGSC_1MSIS \ | OTGSC_DPIS) /* USBMODE */ #define USBMODE_CM (0x03UL << 0) #define USBMODE_CM_DC (0x02UL << 0) #define USBMODE_SLOM BIT(3) #define USBMODE_CI_SDIS BIT(4) /* ENDPTCTRL */ #define ENDPTCTRL_RXS BIT(0) #define ENDPTCTRL_RXT (0x03UL << 2) #define ENDPTCTRL_RXR BIT(6) /* reserved for port 0 */ #define ENDPTCTRL_RXE BIT(7) #define ENDPTCTRL_TXS BIT(16) #define ENDPTCTRL_TXT (0x03UL << 18) #define ENDPTCTRL_TXR BIT(22) /* reserved for port 0 */ #define ENDPTCTRL_TXE BIT(23) #endif /* __DRIVERS_USB_CHIPIDEA_BITS_H */ ue='40'>40space:mode:
Diffstat (limited to 'sound/soc/pxa/brownstone.c')
/sound/usb/6fire/chip.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 'sound/usb/6fire/chip.c')