From patchwork Wed Oct 28 13:13:42 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jarkko Nikula X-Patchwork-Id: 7510581 Return-Path: X-Original-To: patchwork-linux-spi@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 36C59BEEA4 for ; Wed, 28 Oct 2015 13:14:27 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 8B61F20673 for ; Wed, 28 Oct 2015 13:14:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B382720711 for ; Wed, 28 Oct 2015 13:14:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755164AbbJ1NOQ (ORCPT ); Wed, 28 Oct 2015 09:14:16 -0400 Received: from mga14.intel.com ([192.55.52.115]:45516 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755080AbbJ1NOM (ORCPT ); Wed, 28 Oct 2015 09:14:12 -0400 Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga103.fm.intel.com with ESMTP; 28 Oct 2015 06:13:53 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,210,1444719600"; d="scan'208";a="805489230" Received: from mylly.fi.intel.com (HELO mylly.fi.intel.com.) ([10.237.72.53]) by orsmga001.jf.intel.com with ESMTP; 28 Oct 2015 06:13:51 -0700 From: Jarkko Nikula To: linux-spi@vger.kernel.org Cc: Mark Brown , Daniel Mack , Haojian Zhuang , Robert Jarzmik , Jarkko Nikula Subject: [PATCH 4/5] spi: pxa2xx: Add support for Intel Broxton Date: Wed, 28 Oct 2015 15:13:42 +0200 Message-Id: <1446038023-8819-4-git-send-email-jarkko.nikula@linux.intel.com> X-Mailer: git-send-email 2.6.1 In-Reply-To: <1446038023-8819-1-git-send-email-jarkko.nikula@linux.intel.com> References: <1446038023-8819-1-git-send-email-jarkko.nikula@linux.intel.com> Sender: linux-spi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP LPSS SPI in Intel Broxton is otherwise the same than in Intel Sunrisepoint but it supports up to four chip selects per port and has different FIFO thresholds. Patch adds support for two Broxton SoC variants. Signed-off-by: Jarkko Nikula --- drivers/spi/spi-pxa2xx.c | 20 ++++++++++++++++++++ include/linux/pxa2xx_ssp.h | 1 + 2 files changed, 21 insertions(+) diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c index 4f4edebdc29f..1d5392e5a952 100644 --- a/drivers/spi/spi-pxa2xx.c +++ b/drivers/spi/spi-pxa2xx.c @@ -116,6 +116,16 @@ static const struct lpss_config lpss_platforms[] = { .tx_threshold_lo = 32, .tx_threshold_hi = 56, }, + { /* LPSS_BXT_SSP */ + .offset = 0x200, + .reg_general = -1, + .reg_ssp = 0x20, + .reg_cs_ctrl = 0x24, + .reg_capabilities = 0xfc, + .rx_threshold = 1, + .tx_threshold_lo = 16, + .tx_threshold_hi = 48, + }, }; static inline const struct lpss_config @@ -130,6 +140,7 @@ static bool is_lpss_ssp(const struct driver_data *drv_data) case LPSS_LPT_SSP: case LPSS_BYT_SSP: case LPSS_SPT_SSP: + case LPSS_BXT_SSP: return true; default: return false; @@ -1156,6 +1167,7 @@ static int setup(struct spi_device *spi) case LPSS_LPT_SSP: case LPSS_BYT_SSP: case LPSS_SPT_SSP: + case LPSS_BXT_SSP: config = lpss_get_config(drv_data); tx_thres = config->tx_threshold_lo; tx_hi_thres = config->tx_threshold_hi; @@ -1317,6 +1329,14 @@ static const struct pci_device_id pxa2xx_spi_pci_compound_match[] = { /* SPT-H */ { PCI_VDEVICE(INTEL, 0xa129), LPSS_SPT_SSP }, { PCI_VDEVICE(INTEL, 0xa12a), LPSS_SPT_SSP }, + /* BXT */ + { PCI_VDEVICE(INTEL, 0x0ac2), LPSS_BXT_SSP }, + { PCI_VDEVICE(INTEL, 0x0ac4), LPSS_BXT_SSP }, + { PCI_VDEVICE(INTEL, 0x0ac6), LPSS_BXT_SSP }, + /* APL */ + { PCI_VDEVICE(INTEL, 0x5ac2), LPSS_BXT_SSP }, + { PCI_VDEVICE(INTEL, 0x5ac4), LPSS_BXT_SSP }, + { PCI_VDEVICE(INTEL, 0x5ac6), LPSS_BXT_SSP }, { }, }; diff --git a/include/linux/pxa2xx_ssp.h b/include/linux/pxa2xx_ssp.h index 92273776bce6..c2f2574ff61c 100644 --- a/include/linux/pxa2xx_ssp.h +++ b/include/linux/pxa2xx_ssp.h @@ -198,6 +198,7 @@ enum pxa_ssp_type { LPSS_LPT_SSP, /* Keep LPSS types sorted with lpss_platforms[] */ LPSS_BYT_SSP, LPSS_SPT_SSP, + LPSS_BXT_SSP, }; struct ssp_device {