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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org,
	Tobias Diedrich <tobiasdiedrich@gmail.com>
Subject: [PATCH 4.9 67/70] serial: 8250_pci: Add Realtek 816a and 816b
Date: Mon, 21 Sep 2020 18:28:07 +0200	[thread overview]
Message-ID: <20200921162038.201778669@linuxfoundation.org> (raw)
In-Reply-To: <20200921162035.136047591@linuxfoundation.org>

From: Tobias Diedrich <tobiasdiedrich@gmail.com>

commit 3c5a87be170aba8ac40982182f812dcff6ed1ad1 upstream.

These serial ports are exposed by the OOB-management-engine on
RealManage-enabled network cards (e.g. AMD DASH enabled systems using
Realtek cards).

Because these have 3 BARs, they fail the "num_iomem <= 1" check in
serial_pci_guess_board.

I've manually checked the two IOMEM regions and BAR 2 doesn't seem to
respond to reads, but BAR 4 seems to be an MMIO version of the IO ports
(untested).

With this change, the ports are detected:
0000:02:00.1: ttyS0 at I/O 0x2200 (irq = 82, base_baud = 115200) is a 16550A
0000:02:00.2: ttyS1 at I/O 0x2100 (irq = 55, base_baud = 115200) is a 16550A

lspci output:
02:00.1 0700: 10ec:816a (rev 0e) (prog-if 02 [16550])
        Subsystem: 17aa:5082
        Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort+ <TAbort- <MAbort- >SERR- <PERR- INTx-
        Interrupt: pin B routed to IRQ 82
        IOMMU group: 11
        Region 0: I/O ports at 2200 [size=256]
        Region 2: Memory at fd715000 (64-bit, non-prefetchable) [size=4K]
        Region 4: Memory at fd704000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: [40] Power Management version 3
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
                Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+
                Address: 0000000000000000  Data: 0000
        Capabilities: [70] Express (v2) Endpoint, MSI 01
                DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s unlimited, L1 <64us
                        ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset- SlotPowerLimit 0.000W
                DevCtl: CorrErr- NonFatalErr- FatalErr- UnsupReq-
                        RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop-
                        MaxPayload 128 bytes, MaxReadReq 512 bytes
                DevSta: CorrErr+ NonFatalErr- FatalErr- UnsupReq+ AuxPwr+ TransPend-
                LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s unlimited, L1 <64us
                        ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp+
                LnkCtl: ASPM L1 Enabled; RCB 64 bytes, Disabled- CommClk+
                        ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
                LnkSta: Speed 2.5GT/s (ok), Width x1 (ok)
                        TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
                DevCap2: Completion Timeout: Range ABCD, TimeoutDis+ NROPrPrP- LTR+
                         10BitTagComp- 10BitTagReq- OBFF Via message/WAKE#, ExtFmt- EETLPPrefix-
                         EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit-
                         FRS- TPHComp- ExtTPHComp-
                         AtomicOpsCap: 32bit- 64bit- 128bitCAS-
                DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- LTR- OBFF Disabled,
                         AtomicOpsCtl: ReqEn-
                LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete- EqualizationPhase1-
                         EqualizationPhase2- EqualizationPhase3- LinkEqualizationRequest-
                         Retimer- 2Retimers- CrosslinkRes: unsupported
        Capabilities: [b0] MSI-X: Enable- Count=4 Masked-
                Vector table: BAR=4 offset=00000000
                PBA: BAR=4 offset=00000800
        Capabilities: [d0] Vital Product Data
                Not readable
        Capabilities: [100 v2] Advanced Error Reporting
                UESta:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
                UEMsk:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
                UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
                CESta:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr+
                CEMsk:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr+
                AERCap: First Error Pointer: 00, ECRCGenCap+ ECRCGenEn- ECRCChkCap+ ECRCChkEn-
                        MultHdrRecCap- MultHdrRecEn- TLPPfxPres- HdrLogCap-
                HeaderLog: 00000000 00000000 00000000 00000000
        Capabilities: [160 v1] Device Serial Number 00-00-00-00-00-00-00-00
        Capabilities: [170 v1] Latency Tolerance Reporting
                Max snoop latency: 0ns
                Max no snoop latency: 0ns
        Capabilities: [178 v1] L1 PM Substates
                L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ L1_PM_Substates+
                          PortCommonModeRestoreTime=150us PortTPowerOnTime=150us
                L1SubCtl1: PCI-PM_L1.2- PCI-PM_L1.1- ASPM_L1.2- ASPM_L1.1-
                           T_CommonMode=0us LTR1.2_Threshold=0ns
                L1SubCtl2: T_PwrOn=10us
02:00.2 0700: 10ec:816b (rev 0e)
[...same...]

Signed-off-by: Tobias Diedrich <tobiasdiedrich@gmail.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200914173628.GA22508@yamamaya.is-a-geek.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/tty/serial/8250/8250_pci.c |   11 +++++++++++
 1 file changed, 11 insertions(+)

--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -5709,6 +5709,17 @@ static struct pci_device_id serial_pci_t
 		0,
 		0, pbn_exar_XR17V358 },
 
+	/*
+	 * Realtek RealManage
+	 */
+	{	PCI_VENDOR_ID_REALTEK, 0x816a,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0, 0, pbn_b0_1_115200 },
+
+	{	PCI_VENDOR_ID_REALTEK, 0x816b,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0, 0, pbn_b0_1_115200 },
+
 	/* Fintek PCI serial cards */
 	{ PCI_DEVICE(0x1c29, 0x1104), .driver_data = pbn_fintek_4 },
 	{ PCI_DEVICE(0x1c29, 0x1108), .driver_data = pbn_fintek_8 },



  parent reply	other threads:[~2020-09-21 16:37 UTC|newest]

Thread overview: 73+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-21 16:27 [PATCH 4.9 00/70] 4.9.237-rc1 review Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 01/70] ARM: dts: socfpga: fix register entry for timer3 on Arria10 Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 02/70] RDMA/rxe: Fix memleak in rxe_mem_init_user Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 03/70] RDMA/rxe: Drop pointless checks in rxe_init_ports Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 04/70] scsi: libsas: Set data_dir as DMA_NONE if libata marks qc as NODATA Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 05/70] drivers/net/wan/lapbether: Added needed_tailroom Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 06/70] NFC: st95hf: Fix memleak in st95hf_in_send_cmd Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 07/70] firestream: Fix memleak in fs_open Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 08/70] ALSA: hda: Fix 2 channel swapping for Tegra Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 09/70] drivers/net/wan/lapbether: Set network_header before transmitting Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 10/70] xfs: initialize the shortform attr header padding entry Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 11/70] irqchip/eznps: Fix build error for !ARC700 builds Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 12/70] drivers/net/wan/hdlc_cisco: Add hard_header_len Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 13/70] ALSA: hda: fix a runtime pm issue in SOF when integrated GPU is disabled Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 14/70] gcov: Disable gcov build with GCC 10 Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 15/70] iio: adc: mcp3422: fix locking scope Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 16/70] iio: adc: mcp3422: fix locking on error path Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 17/70] iio: adc: ti-ads1015: fix conversion when CONFIG_PM is not set Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 18/70] iio:light:ltr501 Fix timestamp alignment issue Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 19/70] iio:accel:bmc150-accel: Fix timestamp alignment and prevent data leak Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 20/70] iio:adc:ina2xx Fix timestamp alignment issue Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 21/70] iio:adc:ti-adc081c Fix alignment and data leak issues Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 22/70] drivers: iio: magnetometer: Fix sparse endianness warnings cast to restricted __be16 Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 23/70] iio:magnetometer:ak8975 Fix alignment and data leak issues Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 24/70] iio:light:max44000 Fix timestamp alignment and prevent data leak Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 25/70] iio: accel: kxsd9: Fix alignment of local buffer Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 26/70] iio:accel:mma7455: Fix timestamp alignment and prevent data leak Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 27/70] iio:accel:mma8452: " Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 28/70] USB: core: add helpers to retrieve endpoints Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 29/70] staging: wlan-ng: fix out of bounds read in prism2sta_probe_usb() Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 30/70] btrfs: fix wrong address when faulting in pages in the search ioctl Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 31/70] regulator: push allocation in set_consumer_device_supply() out of lock Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 32/70] scsi: target: iscsi: Fix data digest calculation Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 33/70] scsi: target: iscsi: Fix hang in iscsit_access_np() when getting tpg->np_login_sem Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 34/70] rbd: require global CAP_SYS_ADMIN for mapping and unmapping Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 35/70] fbcon: remove soft scrollback code Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 36/70] fbcon: remove now unusued softback_lines cursor() argument Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 37/70] vgacon: remove software scrollback support Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 38/70] KVM: VMX: Dont freeze guest when event delivery causes an APIC-access exit Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 39/70] video: fbdev: fix OOB read in vga_8planes_imageblit() Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 40/70] staging: greybus: audio: fix uninitialized value issue Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 41/70] usb: core: fix slab-out-of-bounds Read in read_descriptors Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 42/70] USB: serial: ftdi_sio: add IDs for Xsens Mti USB converter Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 43/70] USB: serial: option: add support for SIM7070/SIM7080/SIM7090 modules Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 44/70] usb: Fix out of sync data toggle if a configured device is reconfigured Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 45/70] IB/rxe: Remove a pointless indirection layer Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 46/70] RDMA/rxe: Fix the parent sysfs read when the interface has 15 chars Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 47/70] gcov: add support for GCC 10.1 Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 48/70] net: handle the return value of pskb_carve_frag_list() correctly Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 49/70] NFSv4.1 handle ERR_DELAY error reclaiming locking state on delegation recall Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 50/70] scsi: pm8001: Fix memleak in pm8001_exec_internal_task_abort Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 51/70] scsi: lpfc: Fix FLOGI/PLOGI receive race condition in pt2pt discovery Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 52/70] spi: spi-loopback-test: Fix out-of-bounds read Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 53/70] SUNRPC: stop printk reading past end of string Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 54/70] rapidio: Replace select DMAENGINES with depends on Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 55/70] i2c: algo: pca: Reapply i2c bus settings after reset Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 56/70] clk: rockchip: Fix initialization of mux_pll_src_4plls_p Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 57/70] Drivers: hv: vmbus: Add timeout to vmbus_wait_for_unload Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 58/70] MIPS: SNI: Fix MIPS_L1_CACHE_SHIFT Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 59/70] perf test: Free formats for perf pmu parse test Greg Kroah-Hartman
2020-09-21 16:28 ` [PATCH 4.9 60/70] fbcon: Fix user font detection test at fbcon_resize() Greg Kroah-Hartman
2020-09-21 16:28 ` [PATCH 4.9 61/70] MIPS: SNI: Fix spurious interrupts Greg Kroah-Hartman
2020-09-21 16:28 ` [PATCH 4.9 62/70] drm/mediatek: Add exception handing in mtk_drm_probe() if component init fail Greg Kroah-Hartman
2020-09-21 16:28 ` [PATCH 4.9 63/70] USB: quirks: Add USB_QUIRK_IGNORE_REMOTE_WAKEUP quirk for BYD zhaoxin notebook Greg Kroah-Hartman
2020-09-21 16:28 ` [PATCH 4.9 64/70] USB: UAS: fix disconnect by unplugging a hub Greg Kroah-Hartman
2020-09-21 16:28 ` [PATCH 4.9 65/70] usblp: fix race between disconnect() and read() Greg Kroah-Hartman
2020-09-21 16:28 ` [PATCH 4.9 66/70] Input: i8042 - add Entroware Proteus EL07R4 to nomux and reset lists Greg Kroah-Hartman
2020-09-21 16:28 ` Greg Kroah-Hartman [this message]
2020-09-21 16:28 ` [PATCH 4.9 68/70] ehci-hcd: Move include to keep CRC stable Greg Kroah-Hartman
2020-09-21 16:28 ` [PATCH 4.9 69/70] powerpc/dma: Fix dma_map_ops::get_required_mask Greg Kroah-Hartman
2020-09-21 16:28 ` [PATCH 4.9 70/70] x86/defconfig: Enable CONFIG_USB_XHCI_HCD=y Greg Kroah-Hartman
2020-09-22 12:24 ` [PATCH 4.9 00/70] 4.9.237-rc1 review Naresh Kamboju
2020-09-22 20:17 ` Guenter Roeck

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