Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753940AbcL3Lcw (ORCPT ); Fri, 30 Dec 2016 06:32:52 -0500 Received: from smtp.codeaurora.org ([198.145.29.96]:47332 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753851AbcL3Lct (ORCPT ); Fri, 30 Dec 2016 06:32:49 -0500 DMARC-Filter: OpenDMARC Filter v1.3.1 smtp.codeaurora.org D331061481 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=pass smtp.mailfrom=riteshh@codeaurora.org From: Ritesh Harjani To: ulf.hansson@linaro.org, adrian.hunter@intel.com Cc: linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, shawn.lin@rock-chips.com, stummala@codeaurora.org, georgi.djakov@linaro.org, linux-arm-msm@vger.kernel.org, pramod.gurav@linaro.org, jeremymc@redhat.com, venkatg@codeaurora.org, asutoshd@codeaurora.org, subhashj@codeaurora.org, Ritesh Harjani Subject: [RFC PATCH 2/3] mmc: sdhci-msm: Implement platform_dumpregs callback in sdhci-msm Date: Fri, 30 Dec 2016 17:02:10 +0530 Message-Id: <1483097531-9991-3-git-send-email-riteshh@codeaurora.org> X-Mailer: git-send-email 1.8.2.1 In-Reply-To: <1483097531-9991-1-git-send-email-riteshh@codeaurora.org> References: <1483097531-9991-1-git-send-email-riteshh@codeaurora.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3178 Lines: 81 From: Sahitya Tummala Implement ->platform_dumpregs host operation to print the platform specific registers in addition to standard SDHC register during error conditions. Signed-off-by: Sahitya Tummala Signed-off-by: Ritesh Harjani --- drivers/mmc/host/sdhci-msm.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c index 32879b8..1241dbd 100644 --- a/drivers/mmc/host/sdhci-msm.c +++ b/drivers/mmc/host/sdhci-msm.c @@ -29,6 +29,11 @@ #define CORE_VERSION_MAJOR_MASK (0xf << CORE_VERSION_MAJOR_SHIFT) #define CORE_VERSION_MINOR_MASK 0xff +#define CORE_MCI_DATA_CNT 0x30 +#define CORE_MCI_STATUS 0x34 +#define CORE_MCI_FIFO_CNT 0x44 +#define CORE_MCI_STATUS2 0x6c + #define CORE_HC_MODE 0x78 #define HC_MODE_EN 0x1 #define CORE_POWER 0x0 @@ -77,6 +82,10 @@ #define CORE_HC_SELECT_IN_HS400 (6 << 19) #define CORE_HC_SELECT_IN_MASK (7 << 19) +#define CORE_VENDOR_SPEC_FUNC2 0x110 +#define CORE_VENDOR_SPEC_ADMA_ERR_ADDR0 0x114 +#define CORE_VENDOR_SPEC_ADMA_ERR_ADDR1 0x118 + #define CORE_CSR_CDC_CTLR_CFG0 0x130 #define CORE_SW_TRIG_FULL_CALIB BIT(16) #define CORE_HW_AUTOCAL_ENA BIT(17) @@ -658,6 +667,30 @@ static int sdhci_msm_hs400_dll_calibration(struct sdhci_host *host) return ret; } +static void sdhci_msm_dumpregs(struct sdhci_host *host) +{ + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); + struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host); + + pr_err("----------- PLATFORM REGISTER DUMP -----------\n"); + + pr_err("Data cnt: 0x%08x | Fifo cnt: 0x%08x | Int sts: 0x%08x | Int sts2: 0x%08x\n", + readl_relaxed(msm_host->core_mem + CORE_MCI_DATA_CNT), + readl_relaxed(msm_host->core_mem + CORE_MCI_FIFO_CNT), + readl_relaxed(msm_host->core_mem + CORE_MCI_STATUS), + readl_relaxed(msm_host->core_mem + CORE_MCI_STATUS2)); + pr_err("DLL cfg: 0x%08x | DLL sts: 0x%08x | SDCC ver: 0x%08x\n", + readl_relaxed(host->ioaddr + CORE_DLL_CONFIG), + readl_relaxed(host->ioaddr + CORE_DLL_STATUS), + readl_relaxed(msm_host->core_mem + CORE_MCI_VERSION)); + pr_err("Vndr func: 0x%08x | Vndr adma err : addr0: 0x%08x addr1: 0x%08x\n", + readl_relaxed(host->ioaddr + CORE_VENDOR_SPEC), + readl_relaxed(host->ioaddr + CORE_VENDOR_SPEC_ADMA_ERR_ADDR0), + readl_relaxed(host->ioaddr + CORE_VENDOR_SPEC_ADMA_ERR_ADDR1)); + pr_err("Vndr func2: 0x%08x\n", + readl_relaxed(host->ioaddr + CORE_VENDOR_SPEC_FUNC2)); +} + static int sdhci_msm_execute_tuning(struct sdhci_host *host, u32 opcode) { int tuning_seq_cnt = 3; @@ -1035,6 +1068,7 @@ static void sdhci_msm_set_clock(struct sdhci_host *host, unsigned int clock) .set_bus_width = sdhci_set_bus_width, .set_uhs_signaling = sdhci_msm_set_uhs_signaling, .voltage_switch = sdhci_msm_voltage_switch, + .platform_dumpregs = sdhci_msm_dumpregs, }; static const struct sdhci_pltfm_data sdhci_msm_pdata = { -- The Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.