From patchwork Thu Apr 4 19:54:34 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vidya Sagar X-Patchwork-Id: 1077663 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=nvidia.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=nvidia.com header.i=@nvidia.com header.b="rX7viV9L"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 44Ztww73GLz9sPw for ; Fri, 5 Apr 2019 06:56:00 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730470AbfDDTzz (ORCPT ); Thu, 4 Apr 2019 15:55:55 -0400 Received: from hqemgate14.nvidia.com ([216.228.121.143]:13844 "EHLO hqemgate14.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728699AbfDDTzz (ORCPT ); Thu, 4 Apr 2019 15:55:55 -0400 Received: from hqpgpgate102.nvidia.com (Not Verified[216.228.121.13]) by hqemgate14.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Thu, 04 Apr 2019 12:55:58 -0700 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate102.nvidia.com (PGP Universal service); Thu, 04 Apr 2019 12:55:54 -0700 X-PGP-Universal: processed; by hqpgpgate102.nvidia.com on Thu, 04 Apr 2019 12:55:54 -0700 Received: from HQMAIL104.nvidia.com (172.18.146.11) by HQMAIL108.nvidia.com (172.18.146.13) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Thu, 4 Apr 2019 19:55:54 +0000 Received: from hqnvemgw02.nvidia.com (172.16.227.111) by HQMAIL104.nvidia.com (172.18.146.11) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Thu, 4 Apr 2019 19:55:54 +0000 Received: from vidyas-desktop.nvidia.com (Not Verified[10.24.37.38]) by hqnvemgw02.nvidia.com with Trustwave SEG (v7, 5, 8, 10121) id ; Thu, 04 Apr 2019 12:55:53 -0700 From: Vidya Sagar To: , , , , , , , , , , , CC: , , , , , , , , Subject: [PATCH V2 07/16] dt-bindings: PCI: designware: Add binding for CDM register check Date: Fri, 5 Apr 2019 01:24:34 +0530 Message-ID: <1554407683-31580-8-git-send-email-vidyas@nvidia.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1554407683-31580-1-git-send-email-vidyas@nvidia.com> References: <1554407683-31580-1-git-send-email-vidyas@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1554407758; bh=zgKj+7RIvt9aigwah28Aw8pbxJ2+NnzBF4DeWnh2e+A=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:X-NVConfidentiality:MIME-Version: Content-Type; b=rX7viV9LmOMoPEIorlJYjCicTP+fU6rJ9MImNxd9W8bn3TGWil0nmzQDVNgk1/rNV 2JENQ+sHyAreooj9/DoXuv39nFyX3GfBLjheXTpAD0TnMOleq4TfYw3xFfbGiLbQi5 o+4Vwe/1DnhTQdBBEJL46Blt7RzLjil8+Fn814pwkgdloawcQw1aap/OnOq2U5Vq8x cAYYWRhoaB5GX7iTZ3PGAPJkWzXIoYjYF1OIqOONC0kaV2/XyufuoC0deHWfFJo6hS jbU6GvTFRkHzgpPRrcpKeMdAwzJu5prqsmie/5IenYgidkJjsl9JXja8MUcCVzaWZk u+8gHaQ924XTg== Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add support to enable CDM (Configuration Dependent Module) registers check for any data corruption. CDM registers include standard PCIe configuration space registers, Port Logic registers and iATU and DMA registers. Refer Section S.4 of Synopsys DesignWare Cores PCI Express Controller Databook Version 4.90a Signed-off-by: Vidya Sagar --- Changes since [v1]: * This is a new patch in v2 series Documentation/devicetree/bindings/pci/designware-pcie.txt | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/devicetree/bindings/pci/designware-pcie.txt b/Documentation/devicetree/bindings/pci/designware-pcie.txt index c124f9bc11f3..728281b5bcd5 100644 --- a/Documentation/devicetree/bindings/pci/designware-pcie.txt +++ b/Documentation/devicetree/bindings/pci/designware-pcie.txt @@ -31,6 +31,10 @@ Optional properties: - clock-names: Must include the following entries: - "pcie" - "pcie_bus" +- cdm-check: This is a boolean property and if present enables automatic + checking of CDM (Configuration Dependent Module) registers for data + corruption. CDM registers include configuration space registers and iATU + (internal Address Translation Unit) registers. RC mode: - num-viewport: number of view ports configured in hardware. If a platform does not specify it, the driver assumes 2. From patchwork Thu Apr 4 19:54:36 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vidya Sagar X-Patchwork-Id: 1077666 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=nvidia.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=nvidia.com header.i=@nvidia.com header.b="WHAZpFXG"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 44ZtxC38YFz9sPp for ; Fri, 5 Apr 2019 06:56:15 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730634AbfDDT4O (ORCPT ); Thu, 4 Apr 2019 15:56:14 -0400 Received: from hqemgate15.nvidia.com ([216.228.121.64]:13350 "EHLO hqemgate15.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728699AbfDDT4O (ORCPT ); Thu, 4 Apr 2019 15:56:14 -0400 Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqemgate15.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Thu, 04 Apr 2019 12:56:02 -0700 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Thu, 04 Apr 2019 12:56:13 -0700 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Thu, 04 Apr 2019 12:56:13 -0700 Received: from HQMAIL106.nvidia.com (172.18.146.12) by HQMAIL101.nvidia.com (172.20.187.10) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Thu, 4 Apr 2019 19:56:13 +0000 Received: from hqnvemgw02.nvidia.com (172.16.227.111) by HQMAIL106.nvidia.com (172.18.146.12) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Thu, 4 Apr 2019 19:56:13 +0000 Received: from vidyas-desktop.nvidia.com (Not Verified[10.24.37.38]) by hqnvemgw02.nvidia.com with Trustwave SEG (v7, 5, 8, 10121) id ; Thu, 04 Apr 2019 12:56:12 -0700 From: Vidya Sagar To: , , , , , , , , , , , CC: , , , , , , , , Subject: [PATCH V2 09/16] Documentation/devicetree: Add PCIe supports-clkreq property Date: Fri, 5 Apr 2019 01:24:36 +0530 Message-ID: <1554407683-31580-10-git-send-email-vidyas@nvidia.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1554407683-31580-1-git-send-email-vidyas@nvidia.com> References: <1554407683-31580-1-git-send-email-vidyas@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1554407762; bh=ToSv2CiE08XBJBiIccTQ2m4hajVViVTK2QFioc0fIQQ=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:X-NVConfidentiality:MIME-Version: Content-Type; b=WHAZpFXGQWem+Vd7HWxzouKdaYymwtZHScKBUngnL8VtPjhQzalliCiDpZpLbiGrD nOEwhEzmqriuJvDeSayP4pUu41DbjqEVqTUoRBhJWKlnsggCTcf5vb5Di95gBfc9JB y49fjrsJBHYK2dgGsUnWR+FN0fM9q/B1A4niYY0HiYlPpfXYgVtk4JeEa3LX48Ij5C FUWV/voC8KRCGnlAW2fU88Spg/lIOb0Gt+R8mT5kyGJsTWDme3RkyIDcwb7GvJC0yX tepN2MZEWvCvmIVwr7MG4/ele8bgOuyejU+GTT6LMHI+O7MgDZ4dmdaEMsw9jqg3Lp Y9noGFo7fWahA== Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Some host controllers need to know the existence of clkreq signal routing to downstream devices to be able to advertise low power features like ASPM L1 substates. Without clkreq signal routing being present, enabling ASPM L1 sub states might lead to downstream devices falling off the bus. Hence a new device tree property 'supports-clkreq' is added to make such host controllers aware of clkreq signal routing to downstream devices. Signed-off-by: Vidya Sagar --- Changes since [v1]: * This is a new patch in v2 series Documentation/devicetree/bindings/pci/pci.txt | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/pci/pci.txt b/Documentation/devicetree/bindings/pci/pci.txt index c77981c5dd18..8ab574704c7a 100644 --- a/Documentation/devicetree/bindings/pci/pci.txt +++ b/Documentation/devicetree/bindings/pci/pci.txt @@ -24,3 +24,8 @@ driver implementation may support the following properties: unsupported link speed, for instance, trying to do training for unsupported link speed, etc. Must be '4' for gen4, '3' for gen3, '2' for gen2, and '1' for gen1. Any other values are invalid. +- supports-clkreq: + If present this property specifies that CLKREQ signal routing exists from + root port to downstream device and host bridge drivers can do programming + which depends on CLKREQ signal existence. For example, programming root port + not to advertise ASPM L1 Sub-States support if there is no CLKREQ signal. From patchwork Thu Apr 4 19:54:37 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vidya Sagar X-Patchwork-Id: 1077671 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=nvidia.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=nvidia.com header.i=@nvidia.com header.b="W7RdzkUz"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 44ZtxX3HvRz9sNR for ; Fri, 5 Apr 2019 06:56:32 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730437AbfDDT41 (ORCPT ); Thu, 4 Apr 2019 15:56:27 -0400 Received: from hqemgate14.nvidia.com ([216.228.121.143]:13880 "EHLO hqemgate14.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728699AbfDDT41 (ORCPT ); Thu, 4 Apr 2019 15:56:27 -0400 Received: from hqpgpgate102.nvidia.com (Not Verified[216.228.121.13]) by hqemgate14.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Thu, 04 Apr 2019 12:56:30 -0700 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate102.nvidia.com (PGP Universal service); Thu, 04 Apr 2019 12:56:25 -0700 X-PGP-Universal: processed; by hqpgpgate102.nvidia.com on Thu, 04 Apr 2019 12:56:25 -0700 Received: from HQMAIL103.nvidia.com (172.20.187.11) by HQMAIL108.nvidia.com (172.18.146.13) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Thu, 4 Apr 2019 19:56:25 +0000 Received: from hqnvemgw02.nvidia.com (172.16.227.111) by HQMAIL103.nvidia.com (172.20.187.11) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Thu, 4 Apr 2019 19:56:25 +0000 Received: from vidyas-desktop.nvidia.com (Not Verified[10.24.37.38]) by hqnvemgw02.nvidia.com with Trustwave SEG (v7, 5, 8, 10121) id ; Thu, 04 Apr 2019 12:56:25 -0700 From: Vidya Sagar To: , , , , , , , , , , , CC: , , , , , , , , Subject: [PATCH V2 10/16] dt-bindings: PCI: tegra: Add device tree support for T194 Date: Fri, 5 Apr 2019 01:24:37 +0530 Message-ID: <1554407683-31580-11-git-send-email-vidyas@nvidia.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1554407683-31580-1-git-send-email-vidyas@nvidia.com> References: <1554407683-31580-1-git-send-email-vidyas@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1554407790; bh=wVgeh5Ve0wk7NA+DgR/+gWFw5Z5rCrg2XXn1PrtvsCo=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:X-NVConfidentiality:MIME-Version: Content-Type; b=W7RdzkUzSm2j81bc9rkSThbdO/pauXiq2odllLF6Y4kVL3jRjjy3s1mzXbqXp0Md9 drGfvU5cnbCdCG72cZtwGN1vzSkkPJDMyeg82TRuR7DciKLUave3xATboiEVTd/1JK 05B4pg9qcpF9I9DWDyJ9vrjINRN/3uri3OoR0L7TfYo33RsijN8qi8Nye1RWv9x9lE Cq5wcf8eQ7ih05BKFEtV9IPgfLkQ04M9HZXYyf+o/pypgVZaIR/yGF1csIv6Lk05fX 4gpNOAeO+5XxYYdK/XDgaRqugqmHnChalB8Zc6Mp7lfBoSBAmRPwZMX0eZr2WnboTn Xps+aZQTvsI+Q== Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add support for Tegra194 PCIe controllers. These controllers are based on Synopsys DesignWare core IP. Signed-off-by: Vidya Sagar --- Changes since [v1]: * Added documentation for 'power-domains' property * Removed 'window1' and 'window2' properties * Removed '_clk' and '_rst' from clock and reset names * Dropped 'pcie' from phy-names * Added entry for BPMP-FW handle * Removed offsets for some of the registers and added them in code and would be pickedup based on controller ID * Changed 'nvidia,max-speed' to 'max-link-speed' and is made as an optional * Changed 'nvidia,disable-clock-request' to 'supports-clkreq' with inverted operation * Added more documentation for 'nvidia,update-fc-fixup' property * Removed 'nvidia,enable-power-down' and 'nvidia,plat-gpios' properties * Added '-us' to all properties that represent time in microseconds * Moved P2U documentation to a separate file .../bindings/pci/nvidia,tegra194-pcie.txt | 181 +++++++++++++++++++++ 1 file changed, 181 insertions(+) create mode 100644 Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.txt diff --git a/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.txt b/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.txt new file mode 100644 index 000000000000..71aa01b6ccf3 --- /dev/null +++ b/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.txt @@ -0,0 +1,181 @@ +NVIDIA Tegra PCIe controller (Synopsys DesignWare Core based) + +This PCIe host controller is based on the Synopsis Designware PCIe IP +and thus inherits all the common properties defined in designware-pcie.txt. + +Required properties: +- compatible: For Tegra19x, must contain "nvidia,tegra194-pcie". +- device_type: Must be "pci" +- power-domains: A phandle to the node that controls power to the respective + PCIe controller and a specifier name for the PCIe controller. Following are + the specifiers for the different PCIe controllers + - Controller-0 - TEGRA194_POWER_DOMAIN_PCIEX8B + - Controller-1 - TEGRA194_POWER_DOMAIN_PCIEX1A + - Controller-2 - TEGRA194_POWER_DOMAIN_PCIEX1A + - Controller-3 - TEGRA194_POWER_DOMAIN_PCIEX1A + - Controller-4 - TEGRA194_POWER_DOMAIN_PCIEX4A + - Controller-5 - TEGRA194_POWER_DOMAIN_PCIEX8A +- reg: A list of physical base address and length for each set of controller + registers. Must contain an entry for each entry in the reg-names property. +- reg-names: Must include the following entries: + "appl": Controller's application logic registers + "config": As per the definition in designware-pcie.txt + "atu_dma": iATU and DMA registers. This is where the iATU (internal Address + Translation Unit) registers of the PCIe core are made available + fow SW access. + "dbi": The aperture where root port's own configuration registers are + available +- interrupts: A list of interrupt outputs of the controller. Must contain an + entry for each entry in the interrupt-names property. +- interrupt-names: Must include the following entries: + "intr": The Tegra interrupt that is asserted for controller interrupts + "msi": The Tegra interrupt that is asserted when an MSI is received +- bus-range: Range of bus numbers associated with this controller +- #address-cells: Address representation for root ports (must be 3) + - cell 0 specifies the bus and device numbers of the root port: + [23:16]: bus number + [15:11]: device number + - cell 1 denotes the upper 32 address bits and should be 0 + - cell 2 contains the lower 32 address bits and is used to translate to the + CPU address space +- #size-cells: Size representation for root ports (must be 2) +- ranges: Describes the translation of addresses for root ports and standard + PCI regions. The entries must be 7 cells each, where the first three cells + correspond to the address as described for the #address-cells property + above, the fourth and fifth cells are for the physical CPU address to + translate to and the sixth and seventh cells are as described for the + #size-cells property above. + - Entries setup the mapping for the standard I/O, memory and + prefetchable PCI regions. The first cell determines the type of region + that is setup: + - 0x81000000: I/O memory region + - 0x82000000: non-prefetchable memory region + - 0xc2000000: prefetchable memory region + Please refer to the standard PCI bus binding document for a more detailed + explanation. +- #interrupt-cells: Size representation for interrupts (must be 1) +- interrupt-map-mask and interrupt-map: Standard PCI IRQ mapping properties + Please refer to the standard PCI bus binding document for a more detailed + explanation. +- clocks: Must contain an entry for each entry in clock-names. + See ../clocks/clock-bindings.txt for details. +- clock-names: Must include the following entries: + - core +- resets: Must contain an entry for each entry in reset-names. + See ../reset/reset.txt for details. +- reset-names: Must include the following entries: + - core_apb + - core +- phys: Must contain a phandle to P2U PHY for each entry in phy-names. +- phy-names: Must include an entry for each active lane. + "p2u-N": where N ranges from 0 to one less than the total number of lanes +- nvidia,bpmp: Must contain a phandle to BPMP controller node. +- nvidia,controller-id : Controller specific ID + 0 - C0 + 1 - C1 + 2 - C2 + 3 - C3 + 4 - C4 + 5 - C5 +- vddio-pex-ctl-supply: Regulator supply for PCIe side band signals + +Optional properties: +- max-link-speed: Limits controllers max speed to this value. For more info, + please refer to Documentation/devicetree/bindings/pci/pci.txt file. +- nvidia,init-speed: Limits controllers init speed to this value. + 1 - Gen-1 (2. 5 GT/s) + 2 - Gen-2 (5 GT/s) + 3 - Gen-3 (8 GT/s) + 4 - Gen-4 (16 GT/s) +- nvidia,disable-aspm-states : Controls advertisement of ASPM states + bit-0 to '1' : Disables advertisement of ASPM-L0s + bit-1 to '1' : Disables advertisement of ASPM-L1. This also disables + advertisement of ASPM-L1.1 and ASPM-L1.2 + bit-2 to '1' : Disables advertisement of ASPM-L1.1 + bit-3 to '1' : Disables advertisement of ASPM-L1.2 +- supports-clkreq : Refer to Documentation/devicetree/bindings/pci/pci.txt +- nvidia,update-fc-fixup : This is a boolean property and needs to be present to + improve perf when a platform is designed in such a way that it satisfies at + least one of the following conditions thereby enabling root port to + exchange optimum number of FC (Flow Control) credits with downstream devices + 1. If C0/C4/C5 run at x1/x2 link widths (irrespective of speed and MPS) + 2. If C0/C1/C2/C3/C4/C5 operate at their respective max link widths and + a) speed is Gen-2 and MPS is 256B + b) speed is >= Gen-3 with any MPS +- nvidia,cdm-check : Enables CDM checking. For more information, refer Synopsis + DesignWare Cores PCI Express Controller Databook r4.90a Chapter S.4 +- "nvidia,pex-wake" : Add PEX_WAKE gpio number to provide wake support. +- "nvidia,aspm-cmrt-us" : Common Mode Restore time for proper operation of ASPM + to be specified in microseconds +- "nvidia,aspm-pwr-on-t-us" : Power On time for proper operation of ASPM to be + specified in microseconds +- "nvidia,aspm-l0s-entrance-latency-us" : ASPM L0s entrance latency to be + specified in microseconds + +Examples: +========= + +Tegra194: +-------- + +SoC DTSI: + + pcie@14180000 { + compatible = "nvidia,tegra194-pcie", "snps,dw-pcie"; + power-domains = <&bpmp TEGRA194_POWER_DOMAIN_PCIEX8B>; + reg = <0x00 0x14180000 0x0 0x00020000 /* appl registers (128K) */ + 0x00 0x38000000 0x0 0x00040000 /* configuration space (256K) */ + 0x00 0x38040000 0x0 0x00040000>; /* iATU_DMA reg space (256K) */ + reg-names = "appl", "config", "atu_dma"; + + status = "disabled"; + + #address-cells = <3>; + #size-cells = <2>; + device_type = "pci"; + num-lanes = <8>; + linux,pci-domain = <0>; + + clocks = <&bpmp TEGRA194_CLK_PEX0_CORE_0>; + clock-names = "core"; + + resets = <&bpmp TEGRA194_RESET_PEX0_CORE_0_APB>, + <&bpmp TEGRA194_RESET_PEX0_CORE_0>; + reset-names = "core_apb", "core"; + + interrupts = , /* controller interrupt */ + ; /* MSI interrupt */ + interrupt-names = "intr", "msi"; + + #interrupt-cells = <1>; + interrupt-map-mask = <0 0 0 0>; + interrupt-map = <0 0 0 0 &gic 0 72 0x04>; + + nvidia,bpmp = <&bpmp>; + + supports-clkreq; + nvidia,disable-aspm-states = <0xf>; + nvidia,controller-id = <0>; + nvidia,aspm-cmrt-us = <60>; + nvidia,aspm-pwr-on-t-us = <20>; + nvidia,aspm-l0s-entrance-latency-us = <3>; + + bus-range = <0x0 0xff>; + ranges = <0x81000000 0x0 0x38100000 0x0 0x38100000 0x0 0x00100000 /* downstream I/O (1MB) */ + 0x82000000 0x0 0x38200000 0x0 0x38200000 0x0 0x01E00000 /* non-prefetchable memory (30MB) */ + 0xc2000000 0x18 0x00000000 0x18 0x00000000 0x4 0x00000000>; /* prefetchable memory (16GB) */ + }; + +Board DTS: + + pcie@14180000 { + status = "okay"; + + vddio-pex-ctl-supply = <&vdd_1v8ao>; + + phys = <&p2u_2>, + <&p2u_3>, + <&p2u_4>, + <&p2u_5>; + phy-names = "p2u-0", "p2u-1", "p2u-2", "p2u-3"; + }; From patchwork Thu Apr 4 19:54:38 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vidya Sagar X-Patchwork-Id: 1077673 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=nvidia.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=nvidia.com header.i=@nvidia.com header.b="ar3/lMoI"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 44Ztxc4Zv3z9sPn for ; 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Thu, 4 Apr 2019 19:56:34 +0000 Received: from vidyas-desktop.nvidia.com (Not Verified[10.24.37.38]) by hqnvemgw02.nvidia.com with Trustwave SEG (v7, 5, 8, 10121) id ; Thu, 04 Apr 2019 12:56:34 -0700 From: Vidya Sagar To: , , , , , , , , , , , CC: , , , , , , , , Subject: [PATCH V2 11/16] dt-bindings: PHY: P2U: Add Tegra 194 P2U block Date: Fri, 5 Apr 2019 01:24:38 +0530 Message-ID: <1554407683-31580-12-git-send-email-vidyas@nvidia.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1554407683-31580-1-git-send-email-vidyas@nvidia.com> References: <1554407683-31580-1-git-send-email-vidyas@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1554407798; bh=SIp9XNiwggGxDOjLlfcaTWwFa8FUQzKSg2JvjGV8Aw0=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:X-NVConfidentiality:MIME-Version: Content-Type; b=ar3/lMoIWSeGal4wPKWCIKmAeQtsbRdnyCpfabl2PVDOKLA+IC5GMaoiSUmNqM9UO T84RcXKMkJI0cd/ws/l1sjkCJQP6vKqICSW4ZRqiybQ2l5Yk/FIqqWg3O2jfbbSGx5 bNRFV8+47VirlY1dSQX342mH4uX1cQVplsTlJX2igz60zZ40L0MO9cMxEmccQCRDrJ Zj31CSMZmA+5W/c4Pa3kTBMnT15JRjsOmrYQoHmXLqXKFxOqv7B7EDe2R8eO8J0iAd 5eurNLzGgZ59vMUmcSNcWH6UAhNDUCiBCRgBzfNIQfRImD1TQvSxY1kLDDzCuE3+01 csWDMBxsblDaw== Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add support for Tegra194 P2U (PIPE to UPHY) module block which is a glue module instantiated one for each PCIe lane between Synopsys Designware core based PCIe IP and Universal PHY block. --- Changes since [v1]: * This is a new patch in v2 series .../devicetree/bindings/phy/phy-tegra194-p2u.txt | 28 ++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 Documentation/devicetree/bindings/phy/phy-tegra194-p2u.txt diff --git a/Documentation/devicetree/bindings/phy/phy-tegra194-p2u.txt b/Documentation/devicetree/bindings/phy/phy-tegra194-p2u.txt new file mode 100644 index 000000000000..baf037dfdf4c --- /dev/null +++ b/Documentation/devicetree/bindings/phy/phy-tegra194-p2u.txt @@ -0,0 +1,28 @@ +NVIDIA Tegra194 P2U binding + +Tegra194 has two PHY bricks namely HSIO (High Speed IO) and NVHS (NVIDIA High +Speed) each interfacing with 12 and 8 P2U instances respectively. +A P2U instance is a glue logic between Synopsys DesignWare Core PCIe IP's PIPE +interface and PHY of HSIO/NVHS bricks. Each P2U instance represents one PCIe +lane. + +Required properties: +- compatible: For Tegra19x, must contain "nvidia,tegra194-p2u". +- reg: Should be the physical address space and length of respective each P2U + instance. +- reg-names: Must include the entry "ctl". + +Required properties for PHY port node: +- #phy-cells: Defined by generic PHY bindings. Must be 0. + +Refer to phy/phy-bindings.txt for the generic PHY binding properties. + +Example: + +p2u_0: p2u@03e10000 { + compatible = "nvidia,tegra194-p2u"; + reg = <0x03e10000 0x10000>; + reg-names = "ctl"; + + #phy-cells = <0>; +};