From patchwork Mon Jul 11 22:18:23 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Pali_Roh=C3=A1r?= X-Patchwork-Id: 12914311 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 64BCEC433EF for ; Mon, 11 Jul 2022 22:18:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230354AbiGKWSy (ORCPT ); Mon, 11 Jul 2022 18:18:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51402 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229670AbiGKWSx (ORCPT ); Mon, 11 Jul 2022 18:18:53 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 247C512D07; Mon, 11 Jul 2022 15:18:52 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id B937EB815F2; Mon, 11 Jul 2022 22:18:50 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4BA0FC341C8; Mon, 11 Jul 2022 22:18:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1657577929; bh=ETkCB/aehhBtnEDCWccc3Oh1+EJJkiDRqq1zwo6PZ+A=; h=From:To:Cc:Subject:Date:From; b=COl00AOaSWTtYDKodDOFVEME+H+7AMvnwzMHIYm2LHsKSl8bRSEQccSyXFnPUZB5D iyL1y64f2dLz1VcQdTWIcau1DL5DouBqLx4cHGjjgwXUK852SnT81feaJetIdntR1b Yv9DW73xNZeEwryJi6Pizbr94rh+j8YYfHGORR/SH8Z+WFJdvs2+QnCSa/lX9slwGf SSB07O4OjBBkK0RXj1ElS5H3ulIuIy2IJPa1Klbbsl12m19ILVZzBlX0UGgfqPyHnW jaip4TRVuCMkDsbLf/CdkF6uTIZeohfVp2MlfIiV7uNMj1MFgnvYeDUtgRX6TKWf6h 5eD4w+yP0MnAg== Received: by pali.im (Postfix) id 0E9CE9D7; Tue, 12 Jul 2022 00:18:46 +0200 (CEST) From: =?utf-8?q?Pali_Roh=C3=A1r?= To: Thomas Petazzoni , Lorenzo Pieralisi , Rob Herring , =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= , Bjorn Helgaas Cc: linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH] PCI: aardvark: Add support for PCI Bridge Subsystem Vendor ID on emulated bridge Date: Tue, 12 Jul 2022 00:18:23 +0200 Message-Id: <20220711221823.12154-1-pali@kernel.org> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Register with Subsystem Device/Vendor ID is at offset 0x2c. Export is via emulated bridge. After this change Subsystem ID is visible in lspci output at line: Capabilities: [40] Subsystem Signed-off-by: Pali Rohár --- drivers/pci/controller/pci-aardvark.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c index 74511f015168..924c9397a9a4 100644 --- a/drivers/pci/controller/pci-aardvark.c +++ b/drivers/pci/controller/pci-aardvark.c @@ -32,6 +32,8 @@ #define PCIE_CORE_DEV_ID_REG 0x0 #define PCIE_CORE_CMD_STATUS_REG 0x4 #define PCIE_CORE_DEV_REV_REG 0x8 +#define PCIE_CORE_SSDEV_ID_REG 0x2c +#define PCIE_CORE_EXP_ROM_BAR_REG 0x30 #define PCIE_CORE_PCIEXP_CAP 0xc0 #define PCIE_CORE_ERR_CAPCTL_REG 0x118 #define PCIE_CORE_ERR_CAPCTL_ECRC_CHK_TX BIT(5) @@ -982,6 +984,8 @@ static int advk_sw_pci_bridge_init(struct advk_pcie *pcie) /* Indicates supports for Completion Retry Status */ bridge->pcie_conf.rootcap = cpu_to_le16(PCI_EXP_RTCAP_CRSVIS); + bridge->subsystem_vendor_id = advk_readl(pcie, PCIE_CORE_SSDEV_ID_REG) & 0xffff; + bridge->subsystem_id = advk_readl(pcie, PCIE_CORE_SSDEV_ID_REG) >> 16; bridge->has_pcie = true; bridge->data = pcie; bridge->ops = &advk_pci_bridge_emul_ops;