From patchwork Tue Nov 1 00:38:32 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ray Jui X-Patchwork-Id: 689723 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3t7C9601RQz9tlW for ; Tue, 1 Nov 2016 11:41:46 +1100 (AEDT) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=broadcom.com header.i=@broadcom.com header.b=f5zrLUVY; dkim-atps=neutral Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S948222AbcKAAjT (ORCPT ); Mon, 31 Oct 2016 20:39:19 -0400 Received: from mail-pf0-f175.google.com ([209.85.192.175]:36221 "EHLO mail-pf0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S948292AbcKAAjR (ORCPT ); Mon, 31 Oct 2016 20:39:17 -0400 Received: by mail-pf0-f175.google.com with SMTP id 189so31630435pfz.3 for ; Mon, 31 Oct 2016 17:39:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=8d7Dj4Ho5kV5NEdQuPCcwJwRGrgfRyq+k17hiUxnlOU=; b=f5zrLUVYJGawsMGNYDZzeQCY269cUX6loJi/lF7zTLmDMbt5ypiHMrP3S/EyMaEBHi YRDJZ9QDnNOfeLUxVX6TPFMZghs7ikidc06JrovRLzvQVZ1IpZKYGVVvwuQaQoE8uKMN hhXmJmQy31SuqgYWVXl2sygustVoph/dE2YMQ= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=8d7Dj4Ho5kV5NEdQuPCcwJwRGrgfRyq+k17hiUxnlOU=; b=CuoItxDkRSsGnYQhoRBhkGFDy9g972RFCnxbWTvTxe6apMdrQmVkMsKlOZ+kDuHhiH zq1YKhAGGKevvpkG4d8XRv14wHWGg4LSX1eui2jrxe2L/diAhmzWSRYx7S1LC+c+Ox/l bA9T1G3FgiJ8aS6tC4XICXq2p1tvWwOmosMsnNHzXwoUB9e2vfWG8Zl9vSfqIfjtdDSr N4Qr9fsrBPt1B2rYQNWh4VpkhF/xs+VuKenYWyeDS3YOmWM66xlZMDv5NCcRvKiE4ngx D45ZSaVbLr3xYN4FBd3u+LRYJ9k/wNZFxwwolIinu62kxCqAW24iAe5cDA8dPL2WPyiA 4RzQ== X-Gm-Message-State: ABUngveRHcOY5cIJXQxMh9youdrvHssgt+P//83pxphxk7tpDgBwnpPF1D9LzYx7MIjxv8as X-Received: by 10.98.111.1 with SMTP id k1mr54269653pfc.164.1477960756929; Mon, 31 Oct 2016 17:39:16 -0700 (PDT) Received: from lbrmn-lnxub44-1.ric.broadcom.com ([216.31.219.19]) by smtp.gmail.com with ESMTPSA id x62sm2574619pfb.20.2016.10.31.17.39.14 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 31 Oct 2016 17:39:16 -0700 (PDT) From: Ray Jui To: Bjorn Helgaas , Bjorn Helgaas Cc: linux-kernel@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com, linux-pci@vger.kernel.org, Alex Barba , Oza Oza , Ray Jui Subject: [PATCH v2 03/12] PCI: iproc: Add BCMA type Date: Mon, 31 Oct 2016 17:38:32 -0700 Message-Id: <1477960721-17649-4-git-send-email-ray.jui@broadcom.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1477960721-17649-1-git-send-email-ray.jui@broadcom.com> References: <1477960721-17649-1-git-send-email-ray.jui@broadcom.com> Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org The iProc PCIe driver is currently using type IPROC_PCIE_PAXB for the following SoCs: NS, NSP, Cygnus, NS2, and Pegasus. In fact, the BCMA based NS uses a legacy PAXB controller that is slightly different from the PAXB controller used in the rest of SoCs, e.g., some registers are missing and it does not require software configuration of outbound/inbound address mapping A new type IPROC_PCIE_PAXB_BCMA is added in this patch to allow us to properly support the BCMA based NS along with other iProc based SoCs going forward Signed-off-by: Ray Jui Reviewed-by: Scott Branden --- drivers/pci/host/pcie-iproc-bcma.c | 1 + drivers/pci/host/pcie-iproc-msi.c | 1 + drivers/pci/host/pcie-iproc.c | 14 ++++++++++++++ drivers/pci/host/pcie-iproc.h | 3 ++- 4 files changed, 18 insertions(+), 1 deletion(-) diff --git a/drivers/pci/host/pcie-iproc-bcma.c b/drivers/pci/host/pcie-iproc-bcma.c index 8ce0890..bd4c9ec 100644 --- a/drivers/pci/host/pcie-iproc-bcma.c +++ b/drivers/pci/host/pcie-iproc-bcma.c @@ -54,6 +54,7 @@ static int iproc_pcie_bcma_probe(struct bcma_device *bdev) pcie->dev = dev; + pcie->type = IPROC_PCIE_PAXB_BCMA; pcie->base = bdev->io_addr; if (!pcie->base) { dev_err(dev, "no controller registers\n"); diff --git a/drivers/pci/host/pcie-iproc-msi.c b/drivers/pci/host/pcie-iproc-msi.c index 9a2973b..9fad791 100644 --- a/drivers/pci/host/pcie-iproc-msi.c +++ b/drivers/pci/host/pcie-iproc-msi.c @@ -563,6 +563,7 @@ int iproc_msi_init(struct iproc_pcie *pcie, struct device_node *node) } switch (pcie->type) { + case IPROC_PCIE_PAXB_BCMA: case IPROC_PCIE_PAXB: msi->reg_offsets = iproc_msi_reg_paxb; msi->nr_eq_region = 1; diff --git a/drivers/pci/host/pcie-iproc.c b/drivers/pci/host/pcie-iproc.c index 3f4884a..f3b3340 100644 --- a/drivers/pci/host/pcie-iproc.c +++ b/drivers/pci/host/pcie-iproc.c @@ -100,6 +100,17 @@ enum iproc_pcie_reg { IPROC_PCIE_MAX_NUM_REG, }; +/* iProc PCIe PAXB BCMA registers */ +static const u16 iproc_pcie_reg_paxb_bcma[] = { + [IPROC_PCIE_CLK_CTRL] = 0x000, + [IPROC_PCIE_CFG_IND_ADDR] = 0x120, + [IPROC_PCIE_CFG_IND_DATA] = 0x124, + [IPROC_PCIE_CFG_ADDR] = 0x1f8, + [IPROC_PCIE_CFG_DATA] = 0x1fc, + [IPROC_PCIE_INTX_EN] = 0x330, + [IPROC_PCIE_LINK_STATUS] = 0xf0c, +}; + /* iProc PCIe PAXB registers */ static const u16 iproc_pcie_reg_paxb[] = { [IPROC_PCIE_CLK_CTRL] = 0x000, @@ -469,6 +480,9 @@ static int iproc_pcie_rev_init(struct iproc_pcie *pcie) const u16 *regs; switch (pcie->type) { + case IPROC_PCIE_PAXB_BCMA: + regs = iproc_pcie_reg_paxb_bcma; + break; case IPROC_PCIE_PAXB: regs = iproc_pcie_reg_paxb; break; diff --git a/drivers/pci/host/pcie-iproc.h b/drivers/pci/host/pcie-iproc.h index 83643d5..768be05 100644 --- a/drivers/pci/host/pcie-iproc.h +++ b/drivers/pci/host/pcie-iproc.h @@ -24,7 +24,8 @@ * endpoint devices. */ enum iproc_pcie_type { - IPROC_PCIE_PAXB = 0, + IPROC_PCIE_PAXB_BCMA = 0, + IPROC_PCIE_PAXB, IPROC_PCIE_PAXC, };