OpenCloudOS-Kernel/include/uapi/linux/serial_core.h

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License cleanup: add SPDX license identifier to uapi header files with a license Many user space API headers have licensing information, which is either incomplete, badly formatted or just a shorthand for referring to the license under which the file is supposed to be. This makes it hard for compliance tools to determine the correct license. Update these files with an SPDX license identifier. The identifier was chosen based on the license information in the file. GPL/LGPL licensed headers get the matching GPL/LGPL SPDX license identifier with the added 'WITH Linux-syscall-note' exception, which is the officially assigned exception identifier for the kernel syscall exception: NOTE! This copyright does *not* cover user programs that use kernel services by normal system calls - this is merely considered normal use of the kernel, and does *not* fall under the heading of "derived work". This exception makes it possible to include GPL headers into non GPL code, without confusing license compliance tools. Headers which have either explicit dual licensing or are just licensed under a non GPL license are updated with the corresponding SPDX identifier and the GPLv2 with syscall exception identifier. The format is: ((GPL-2.0 WITH Linux-syscall-note) OR SPDX-ID-OF-OTHER-LICENSE) SPDX license identifiers are a legally binding shorthand, which can be used instead of the full boiler plate text. The update does not remove existing license information as this has to be done on a case by case basis and the copyright holders might have to be consulted. This will happen in a separate step. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. See the previous patch in this series for the methodology of how this patch was researched. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-01 22:09:13 +08:00
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
/*
* linux/drivers/char/serial_core.h
*
* Copyright (C) 2000 Deep Blue Solutions Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _UAPILINUX_SERIAL_CORE_H
#define _UAPILINUX_SERIAL_CORE_H
#include <linux/serial.h>
/*
* The type definitions. These are from Ted Ts'o's serial.h
*/
#define PORT_NS16550A 14
#define PORT_XSCALE 15
#define PORT_RM9000 16 /* PMC-Sierra RM9xxx internal UART */
#define PORT_OCTEON 17 /* Cavium OCTEON internal UART */
#define PORT_AR7 18 /* Texas Instruments AR7 internal UART */
#define PORT_U6_16550A 19 /* ST-Ericsson U6xxx internal UART */
#define PORT_TEGRA 20 /* NVIDIA Tegra internal UART */
#define PORT_XR17D15X 21 /* Exar XR17D15x UART */
#define PORT_LPC3220 22 /* NXP LPC32xx SoC "Standard" UART */
#define PORT_8250_CIR 23 /* CIR infrared port, has its own driver */
#define PORT_XR17V35X 24 /* Exar XR17V35x UARTs */
#define PORT_BRCM_TRUMANAGE 25
#define PORT_ALTR_16550_F32 26 /* Altera 16550 UART with 32 FIFOs */
#define PORT_ALTR_16550_F64 27 /* Altera 16550 UART with 64 FIFOs */
#define PORT_ALTR_16550_F128 28 /* Altera 16550 UART with 128 FIFOs */
#define PORT_RT2880 29 /* Ralink RT2880 internal UART */
#define PORT_16550A_FSL64 30 /* Freescale 16550 UART with 64 FIFOs */
/*
* ARM specific type numbers. These are not currently guaranteed
* to be implemented, and will change in the future. These are
* separate so any additions to the old serial.c that occur before
* we are merged can be easily merged here.
*/
#define PORT_PXA 31
#define PORT_AMBA 32
#define PORT_CLPS711X 33
#define PORT_SA1100 34
#define PORT_UART00 35
#define PORT_OWL 36
#define PORT_21285 37
/* Sparc type numbers. */
#define PORT_SUNZILOG 38
#define PORT_SUNSAB 39
/* Nuvoton UART */
#define PORT_NPCM 40
/* NVIDIA Tegra Combined UART */
#define PORT_TEGRA_TCU 41
/* Intel EG20 */
#define PORT_PCH_8LINE 44
#define PORT_PCH_2LINE 45
/* DEC */
#define PORT_DZ 46
#define PORT_ZS 47
/* Parisc type numbers. */
#define PORT_MUX 48
/* Atmel AT91 SoC */
#define PORT_ATMEL 49
/* Macintosh Zilog type numbers */
#define PORT_MAC_ZILOG 50 /* m68k : not yet implemented */
#define PORT_PMAC_ZILOG 51
/* SH-SCI */
#define PORT_SCI 52
#define PORT_SCIF 53
#define PORT_IRDA 54
/* Samsung S3C2410 SoC and derivatives thereof */
#define PORT_S3C2410 55
/* SGI IP22 aka Indy / Challenge S / Indigo 2 */
#define PORT_IP22ZILOG 56
/* Sharp LH7a40x -- an ARM9 SoC series */
#define PORT_LH7A40X 57
/* PPC CPM type number */
#define PORT_CPM 58
/* MPC52xx (and MPC512x) type numbers */
#define PORT_MPC52xx 59
/* IBM icom */
#define PORT_ICOM 60
/* Samsung S3C2440 SoC */
#define PORT_S3C2440 61
/* Motorola i.MX SoC */
#define PORT_IMX 62
/* Marvell MPSC (obsolete unused) */
#define PORT_MPSC 63
/* TXX9 type number */
#define PORT_TXX9 64
/* NEC VR4100 series SIU/DSIU */
#define PORT_VR41XX_SIU 65
#define PORT_VR41XX_DSIU 66
/* Samsung S3C2400 SoC */
#define PORT_S3C2400 67
/* M32R SIO */
#define PORT_M32R_SIO 68
/*Digi jsm */
#define PORT_JSM 69
/* SUN4V Hypervisor Console */
#define PORT_SUNHV 72
#define PORT_S3C2412 73
/* Xilinx uartlite */
#define PORT_UARTLITE 74
/* Blackfin bf5xx */
#define PORT_BFIN 75
/* Broadcom SB1250, etc. SOC */
#define PORT_SB1250_DUART 77
/* Freescale ColdFire */
#define PORT_MCF 78
/* Blackfin SPORT */
#define PORT_BFIN_SPORT 79
/* MN10300 on-chip UART numbers */
#define PORT_MN10300 80
#define PORT_MN10300_CTS 81
#define PORT_SC26XX 82
/* SH-SCI */
#define PORT_SCIFA 83
#define PORT_S3C6400 84
/* NWPSERIAL, now removed */
#define PORT_NWPSERIAL 85
/* MAX3100 */
#define PORT_MAX3100 86
/* Timberdale UART */
#define PORT_TIMBUART 87
/* Qualcomm MSM SoCs */
#define PORT_MSM 88
/* BCM63xx family SoCs */
#define PORT_BCM63XX 89
/* Aeroflex Gaisler GRLIB APBUART */
#define PORT_APBUART 90
/* Altera UARTs */
#define PORT_ALTERA_JTAGUART 91
#define PORT_ALTERA_UART 92
/* SH-SCI */
#define PORT_SCIFB 93
/* MAX310X */
#define PORT_MAX310X 94
/* TI DA8xx/66AK2x */
#define PORT_DA830 95
/* TI OMAP-UART */
#define PORT_OMAP 96
/* VIA VT8500 SoC */
#define PORT_VT8500 97
/* Cadence (Xilinx Zynq) UART */
#define PORT_XUARTPS 98
/* Atheros AR933X SoC */
#define PORT_AR933X 99
/* ARC (Synopsys) on-chip UART */
#define PORT_ARC 101
/* Rocketport EXPRESS/INFINITY */
#define PORT_RP2 102
/* Freescale lpuart */
#define PORT_LPUART 103
/* SH-SCI */
ARM SoC late changes These are changes that arrived a little late before the merge window or that have multiple dependencies on previous branches so they did not fit into one of the earlier ones. There are 10 branches merged here, a total of 39 non-merge commits. Contents are a mixed bag for the above reasons: * Two new SoC platforms: ST microelectronics stixxxx and the TI 'Nspire' graphing calculator. These should have been in the 'soc' branch but were a little late * Support for the Exynos 5420 variant in mach-exynos, which is based on the other exynos branches to avoid conflicts. * Various small changes for sh-mobile, ux500 and davinci * Common clk support for MSM Conflicts: * In Kconfig.debug, various additions trivially conflict, the list should be kept in alphabetical order when resolving. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIVAwUAUdLnl2CrR//JCVInAQIrKhAAwvtsGNe6j9nDuLEitWtQAmhHYZQyUJ8k o9j/1j1CqhE8C0bLRud8D4m1GxfxbGeRm2d0HoNbxda3FmntUufqBDi6neMiQiLO VltC5rOYL8Mday0Asc3SBfjBj8SZC2bypicKy5zUfzsObCBt343g1WvYffMDNmwH FveOQK6q2BKmO67cazc9tk5xmxjVwP/LB8r5mQtiXmMguw0R+ZIDDIP6xaURFkxX SAElleD2wtvpVHP1d6AKHpXN99u3xV3uoJjKljECEXdBzW/ZX8m7FG2tKY5xy368 ta0Nhh2MSRnBhUYOH9uah4PQWYEsbZ+M/W+3J9tKRu6q9D/c/AAxILyXUY2tcHNC o1UwcUn1druirx3X1AW8HYAGNwW7BD3HANzIiUkQZG7ByfM4qCtUEo2SAFNIGBoR v1FMLhMPgMWotZnKrDQQd0anxkKIOFaSMRVgpQLW2jQt/B7sHLmEH2yDffkbSD76 PQDThnW/dfm9dgeK+X4fPrveIMKbjQlbFz0okN+LPsUf8e1045HBgCi2A0lTIGWM kVVgXHKKXi8G8HBa4VyDlORVHXk1bJEheF+zlDvdk4fHkcf+H/OfvFG2O9TdIdpb ITXRyyteaRM4YIZpnJbzeeZDZXT89c2ah7xq36iM+L1ScidyntPquViXeasSc8r6 pKu9ZDc0Mow= =cRu2 -----END PGP SIGNATURE----- Merge tag 'late-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC late changes from Arnd Bergmann: "These are changes that arrived a little late before the merge window or that have multiple dependencies on previous branches so they did not fit into one of the earlier ones. There are 10 branches merged here, a total of 39 non-merge commits. Contents are a mixed bag for the above reasons: * Two new SoC platforms: ST microelectronics stixxxx and the TI 'Nspire' graphing calculator. These should have been in the 'soc' branch but were a little late * Support for the Exynos 5420 variant in mach-exynos, which is based on the other exynos branches to avoid conflicts. * Various small changes for sh-mobile, ux500 and davinci * Common clk support for MSM" * tag 'late-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (39 commits) ARM: ux500: bail out on alien cpus ARM: davinci: da850: adopt to pinctrl-single change for configuring multiple pins serial: sh-sci: Initialise variables before access in sci_set_termios() ARM: stih41x: Add B2020 board support ARM: stih41x: Add B2000 board support ARM: sti: Add DEBUG_LL console support ARM: sti: Add STiH416 SOC support ARM: sti: Add STiH415 SOC support ARM: msm: Migrate to common clock framework ARM: msm: Make proc_comm clock control into a platform driver ARM: msm: Prepare clk_get() users in mach-msm for clock-pcom driver ARM: msm: Remove clock-7x30.h include file ARM: msm: Remove custom clk_set_{max,min}_rate() API ARM: msm: Remove custom clk_set_flags() API msm: iommu: Use clk_set_rate() instead of clk_set_min_rate() msm: iommu: Convert to clk_prepare/unprepare msm_sdcc: Convert to clk_prepare/unprepare usb: otg: msm: Convert to clk_prepare/unprepare msm_serial: Use devm_clk_get() and properly return errors msm_serial: Convert to clk_prepare/unprepare ...
2013-07-03 05:42:51 +08:00
#define PORT_HSCIF 104
/* ST ASC type numbers */
#define PORT_ASC 105
/* Tilera TILE-Gx UART */
Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile Pull Tile arch updates from Chris Metcalf: "These changes bring in a bunch of new functionality that has been maintained internally at Tilera over the last year, plus other stray bits of work that I've taken into the tile tree from other folks. The changes include some PCI root complex work, interrupt-driven console support, support for performing fast-path unaligned data fixups by kernel-based JIT code generation, CONFIG_PREEMPT support, vDSO support for gettimeofday(), a serial driver for the tilegx on-chip UART, KGDB support, more optimized string routines, support for ftrace and kprobes, improved ASLR, and many bug fixes. We also remove support for the old TILE64 chip, which is no longer buildable" * git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: (85 commits) tile: refresh tile defconfig files tile: rework <asm/cmpxchg.h> tile PCI RC: make default consistent DMA mask 32-bit tile: add null check for kzalloc in tile/kernel/setup.c tile: make __write_once a synonym for __read_mostly tile: remove support for TILE64 tile: use asm-generic/bitops/builtin-*.h tile: eliminate no-op "noatomichash" boot argument tile: use standard tile_bundle_bits type in traps.c tile: simplify code referencing hypervisor API addresses tile: change <asm/system.h> to <asm/switch_to.h> in comments tile: mark pcibios_init() as __init tile: check for correct compiler earlier in asm-offsets.c tile: use standard 'generic-y' model for <asm/hw_irq.h> tile: use asm-generic version of <asm/local64.h> tile PCI RC: add comment about "PCI hole" problem tile: remove DEBUG_EXTRA_FLAGS kernel config option tile: add virt_to_kpte() API and clean up and document behavior tile: support FRAME_POINTER tile: support reporting Tilera hypervisor statistics ...
2013-09-07 02:14:33 +08:00
#define PORT_TILEGX 106
/* MEN 16z135 UART */
#define PORT_MEN_Z135 107
/* SC16IS74xx */
#define PORT_SC16IS7XX 108
/* MESON */
#define PORT_MESON 109
/* Conexant Digicolor */
#define PORT_DIGICOLOR 110
/* SPRD SERIAL */
#define PORT_SPRD 111
/* Cris v10 / v32 SoC */
#define PORT_CRIS 112
/* STM32 USART */
#define PORT_STM32 113
/* MVEBU UART */
#define PORT_MVEBU 114
/* Microchip PIC32 UART */
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus Pull MIPS updates from Ralf Baechle: "This is the main pull request for MIPS for 4.7. Here's the summary of the changes: - ATH79: Support for DTB passuing using the UHI boot protocol - ATH79: Remove support for builtin DTB. - ATH79: Add zboot debug serial support. - ATH79: Add initial support for Dragino MS14 (Dragine 2), Onion Omega and DPT-Module. - ATH79: Update devicetree clock support for AR9132 and AR9331. - ATH79: Cleanup the DT code. - ATH79: Support newer SOCs in ath79_ddr_ctrl_init. - ATH79: Fix regression in PCI window initialization. - BCM47xx: Move SPROM driver to drivers/firmware/ - BCM63xx: Enable partition parser in defconfig. - BMIPS: BMIPS5000 has I cache filing from D cache - BMIPS: BMIPS: Add cpu-feature-overrides.h - BMIPS: Add Whirlwind support - BMIPS: Adjust mips-hpt-frequency for BCM7435 - BMIPS: Remove maxcpus from BCM97435SVMB DTS - BMIPS: Add missing 7038 L1 register cells to BCM7435 - BMIPS: Various tweaks to initialization code. - BMIPS: Enable partition parser in defconfig. - BMIPS: Cache tweaks. - BMIPS: Add UART, I2C and SATA devices to DT. - BMIPS: Add BCM6358 and BCM63268support - BMIPS: Add device tree example for BCM6358. - BMIPS: Improve Improve BCM6328 and BCM6368 device trees - Lantiq: Add support for device tree file from boot loader - Lantiq: Allow build with no built-in DT. - Loongson 3: Reserve 32MB for RS780E integrated GPU. - Loongson 3: Fix build error after ld-version.sh modification - Loongson 3: Move chipset ACPI code from drivers to arch. - Loongson 3: Speedup irq processing. - Loongson 3: Add basic Loongson 3A support. - Loongson 3: Set cache flush handlers to nop. - Loongson 3: Invalidate special TLBs when needed. - Loongson 3: Fast TLB refill handler. - MT7620: Fallback strategy for invalid syscfg0. - Netlogic: Fix CP0_EBASE redefinition warnings - Octeon: Initialization fixes - Octeon: Add DTS files for the D-Link DSR-1000N and EdgeRouter Lite - Octeon: Enable add Octeon-drivers in cavium_octeon_defconfig - Octeon: Correctly handle endian-swapped initramfs images. - Octeon: Support CN73xx, CN75xx and CN78xx. - Octeon: Remove dead code from cvmx-sysinfo. - Octeon: Extend number of supported CPUs past 32. - Octeon: Remove some code limiting NR_IRQS to 255. - Octeon: Simplify octeon_irq_ciu_gpio_set_type. - Octeon: Mark some functions __init in smp.c - Octeon: Octeon: Add Octeon III CN7xxx interface detection - PIC32: Add serial driver and bindings for it. - PIC32: Add PIC32 deadman timer driver and bindings. - PIC32: Add PIC32 clock timer driver and bindings. - Pistachio: Determine SoC revision during boot - Sibyte: Fix Kconfig dependencies of SIBYTE_BUS_WATCHER. - Sibyte: Strip redundant comments from bcm1480_regs.h. - Panic immediately if panic_on_oops is set. - module: fix incorrect IS_ERR_VALUE macro usage. - module: Make consistent use of pr_* - Remove no longer needed work_on_cpu() call. - Remove CONFIG_IPV6_PRIVACY from defconfigs. - Fix registers of non-crashing CPUs in dumps. - Handle MIPSisms in new vmcore_elf32_check_arch. - Select CONFIG_HANDLE_DOMAIN_IRQ and make it work. - Allow RIXI to be used on non-R2 or R6 cores. - Reserve nosave data for hibernation - Fix siginfo.h to use strict POSIX types. - Don't unwind user mode with EVA. - Fix watchpoint restoration - Ptrace watchpoints for R6. - Sync icache when it fills from dcache - I6400 I-cache fills from dcache. - Various MSA fixes. - Cleanup MIPS_CPU_* definitions. - Signal: Move generic copy_siginfo to signal.h - Signal: Fix uapi include in exported asm/siginfo.h - Timer fixes for sake of KVM. - XPA TLB refill fixes. - Treat perf counter feature - Update John Crispin's email address - Add PIC32 watchdog and bindings. - Handle R10000 LL/SC bug in set_pte() - cpufreq: Various fixes for Longson1. - R6: Fix R2 emulation. - mathemu: Cosmetic fix to ADDIUPC emulation, plenty of other small fixes - ELF: ABI and FP fixes. - Allow for relocatable kernel and use that to support KASLR. - Fix CPC_BASE_ADDR mask - Plenty fo smp-cps, CM, R6 and M6250 fixes. - Make reset_control_ops const. - Fix kernel command line handling of leading whitespace. - Cleanups to cache handling. - Add brcm, bcm6345-l1-intc device tree bindings. - Use generic clkdev.h header - Remove CLK_IS_ROOT usage. - Misc small cleanups. - CM: Fix compilation error when !MIPS_CM - oprofile: Fix a preemption issue - Detect DSP ASE v3 support:1" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (275 commits) MIPS: pic32mzda: fix getting timer clock rate. MIPS: ath79: fix regression in PCI window initialization MIPS: ath79: make ath79_ddr_ctrl_init() compatible for newer SoCs MIPS: Fix VZ probe gas errors with binutils <2.24 MIPS: perf: Fix I6400 event numbers MIPS: DEC: Export `ioasic_ssr_lock' to modules MIPS: MSA: Fix a link error on `_init_msa_upper' with older GCC MIPS: CM: Fix compilation error when !MIPS_CM MIPS: Fix genvdso error on rebuild USB: ohci-jz4740: Remove obsolete driver MIPS: JZ4740: Probe OHCI platform device via DT MIPS: JZ4740: Qi LB60: Remove support for AVT2 variant MIPS: pistachio: Determine SoC revision during boot MIPS: BMIPS: Adjust mips-hpt-frequency for BCM7435 mips: mt7620: fallback to SDRAM when syscfg0 does not have a valid value for the memory type MIPS: Prevent "restoration" of MSA context in non-MSA kernels MIPS: cevt-r4k: Dynamically calculate min_delta_ns MIPS: malta-time: Take seconds into account MIPS: malta-time: Start GIC count before syncing to RTC MIPS: Force CPUs to lose FP context during mode switches ...
2016-05-20 01:02:26 +08:00
#define PORT_PIC32 115
/* MPS2 UART */
TTY and Serial driver update for 4.7-rc1 Here's the large TTY and Serial driver update for 4.7-rc1. A few new serial drivers are added here, and Peter has fixed a bunch of long-standing bugs in the tty layer and serial drivers as normal. Full details in the shortlog. All of these have been in linux-next for a while with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iEYEABECAAYFAlc/0/oACgkQMUfUDdst+ynzyQCgsa54VNijdAzU6AA5HEfqmf2M cGMAn1boH7hUWlAbJmzzihx4JASoGjYW =V5VH -----END PGP SIGNATURE----- Merge tag 'tty-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty and serial driver updates from Greg KH: "Here's the large TTY and Serial driver update for 4.7-rc1. A few new serial drivers are added here, and Peter has fixed a bunch of long-standing bugs in the tty layer and serial drivers as normal. Full details in the shortlog. All of these have been in linux-next for a while with no reported issues" * tag 'tty-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (88 commits) MAINTAINERS: 8250: remove website reference serial: core: Fix port mutex assert if lockdep disabled serial: 8250_dw: fix wrong logic in dw8250_check_lcr() tty: vt, finish looping on duplicate tty: vt, return error when con_startup fails QE-UART: add "fsl,t1040-ucc-uart" to of_device_id serial: mctrl_gpio: Drop support for out1-gpios and out2-gpios serial: 8250dw: Add device HID for future AMD UART controller Fix OpenSSH pty regression on close serial: mctrl_gpio: add IRQ locking serial: 8250: Integrate Fintek into 8250_base serial: mps2-uart: add support for early console serial: mps2-uart: add MPS2 UART driver dt-bindings: document the MPS2 UART bindings serial: sirf: Use generic uart-has-rtscts DT property serial: sirf: Introduce helper variable struct device_node *np serial: mxs-auart: Use generic uart-has-rtscts DT property serial: imx: Use generic uart-has-rtscts DT property doc: DT: Add Generic Serial Device Tree Bindings serial: 8250: of: Make tegra_serial_handle_break() static ...
2016-05-21 11:57:27 +08:00
#define PORT_MPS2UART 116
/* MediaTek BTIF */
#define PORT_MTK_BTIF 117
/* RDA UART */
#define PORT_RDA 118
/* Socionext Milbeaut UART */
#define PORT_MLB_USIO 119
tty: serial: add driver for the SiFive UART Add a serial driver for the SiFive UART, found on SiFive FU540 devices (among others). The underlying serial IP block is relatively basic, and currently does not support serial break detection. Further information on the IP block can be found in the documentation and Chisel sources: https://static.dev.sifive.com/FU540-C000-v1.0.pdf https://github.com/sifive/sifive-blocks/tree/master/src/main/scala/devices/uart This driver was written in collaboration with Wesley Terpstra <wesley@sifive.com>. Tested on a SiFive HiFive Unleashed A00 board, using BBL and the open- source FSBL (using a DT file based on what's targeted for mainline). This revision incorporates changes based on comments by Julia Lawall <julia.lawall@lip6.fr>, Emil Renner Berthing <kernel@esmil.dk>, and Andreas Schwab <schwab@suse.de>. Thanks also to Andreas for testing the driver with his userspace and reporting a bug with the set_termios implementation. Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com> Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Jiri Slaby <jslaby@suse.com> Cc: Palmer Dabbelt <palmer@sifive.com> Cc: Wesley Terpstra <wesley@sifive.com> Cc: linux-serial@vger.kernel.org Cc: linux-riscv@lists.infradead.org Cc: linux-kernel@vger.kernel.org Cc: Julia Lawall <julia.lawall@lip6.fr> Cc: Emil Renner Berthing <kernel@esmil.dk> Cc: Andreas Schwab <schwab@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-13 10:01:13 +08:00
/* SiFive UART */
#define PORT_SIFIVE_V0 120
/* Sunix UART */
#define PORT_SUNIX 121
/* Freescale LINFlexD UART */
#define PORT_LINFLEXUART 122
tty: serial: Add linflexuart driver for S32V234 Introduce support for LINFlex driver, based on: - the version of Freescale LPUART driver after commit b3e3bf2ef2c7 ("Merge 4.0-rc7 into tty-next"); - commit abf1e0a98083 ("tty: serial: fsl_lpuart: lock port on console write"). In this basic version, the driver can be tested using initramfs and relies on the clocks and pin muxing set up by U-Boot. Remarks concerning the earlycon support: - LinFlexD does not allow character transmissions in the INIT mode (see section 47.4.2.1 in the reference manual[1]). Therefore, a mutual exclusion between the first linflex_setup_watermark/linflex_set_termios executions and linflex_earlycon_putchar was employed and the characters normally sent to earlycon during initialization are kept in a buffer and sent afterwards. - Empirically, character transmission is also forbidden within the last 1-2 ms before entering the INIT mode, so we use an explicit timeout (PREINIT_DELAY) between linflex_earlycon_putchar and the first call to linflex_setup_watermark. - U-Boot currently uses the UART FIFO mode, while this driver makes the transition to the buffer mode. Therefore, the earlycon putchar function matches the U-Boot behavior before initializations and the Linux behavior after. [1] https://www.nxp.com/webapp/Download?colCode=S32V234RM Signed-off-by: Stoica Cosmin-Stefan <cosmin.stoica@nxp.com> Signed-off-by: Adrian.Nitu <adrian.nitu@freescale.com> Signed-off-by: Larisa Grigore <Larisa.Grigore@nxp.com> Signed-off-by: Ana Nedelcu <B56683@freescale.com> Signed-off-by: Mihaela Martinas <Mihaela.Martinas@freescale.com> Signed-off-by: Matthew Nunez <matthew.nunez@nxp.com> [stefan-gabriel.mirea@nxp.com: Reduced for upstreaming and implemented earlycon support] Signed-off-by: Stefan-Gabriel Mirea <stefan-gabriel.mirea@nxp.com> Link: https://lore.kernel.org/r/20190809112853.15846-6-stefan-gabriel.mirea@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-09 19:29:16 +08:00
#endif /* _UAPILINUX_SERIAL_CORE_H */