From patchwork Fri May 12 10:45:57 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Victor Shih X-Patchwork-Id: 13239112 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 B61B4C77B7C for ; Fri, 12 May 2023 10:47:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240867AbjELKre (ORCPT ); Fri, 12 May 2023 06:47:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46876 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240886AbjELKr3 (ORCPT ); Fri, 12 May 2023 06:47:29 -0400 Received: from mail-pf1-x429.google.com (mail-pf1-x429.google.com [IPv6:2607:f8b0:4864:20::429]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C0FC71328F; Fri, 12 May 2023 03:47:09 -0700 (PDT) Received: by mail-pf1-x429.google.com with SMTP id d2e1a72fcca58-6439b410679so6454842b3a.0; Fri, 12 May 2023 03:47:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1683888429; x=1686480429; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=1SxJIzq87qXobHcRTYWJbit5Nqj1d0fM2PeE32DSP2o=; b=INylud/BwUoM3kM5fNBMkglS5/fFPux/505IKyajC/h4rmZOPjGkS6ctbzwsuPglnI OG/5kj8Joc56PXESHK2iwjdTpOEMhqDA5EAnTzlUVuqdtEXXvTxQQ7pF6Ny4XKQy5rKD AsIgdGGOzzS15qhRGtDZFRGVg55Ne7TCJpCwxbLZBTGvPQTV3HvxULkIBYrOZjBM2aZp 2+kelVH9ybj0/+KwjyoMQUsm1aKTfjcoQqNxjeNATdJ9FZ6htdwLrFWEHr0G0S676ke9 z8Z2oKT9xvLKrIFp7ua+v5+8SrMUFENgwCWXyLXdsEgUtj0LmB2PYj1Y0LjpzIordtBQ VpJw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1683888429; x=1686480429; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=1SxJIzq87qXobHcRTYWJbit5Nqj1d0fM2PeE32DSP2o=; b=HaRkZeM5artj3QufdekTlxhocGznKPWircu2DVidFJ9qgBJpbFyeRySt39VGgA7tEg fwBuA/m6+JtSf0O3eCyQ4knH3oyIt/vZm/eB9pcoeh+S5Uh96ZGEmumqNw00Oa04CXsV gFUfDHEFqSwZ72YAMy3QFQdmoq9h1TbEiDDttXYGdCKgvT1nxVRYvE6TF6dqpeBxa5Xe jIp5H/sWjtHhtGyO5JrWLnilTJdbxKSkirGktSm7DZ8Wx01fo+gh+ssP+L2Ql1IWZdQ2 dY19ZO/qAjGJz9Pmvsv3kKHooISlVQhzenbSrUAaRKVa8A1ATeyrCIw4PsrsFIimnZvy 2ckA== X-Gm-Message-State: AC+VfDw7RSA7Tv/a/32nwJYBLrKwuUilU8Mht0/eo93FVLADgOQTJL3t SHZMgkYTBZJq9iX6GwGqiMg= X-Google-Smtp-Source: ACHHUZ6+l2iYZzQ98ay23WSFTWKHqp+KvKBUKNDfy9s5FBsL016Y67dzF2WhP0ec7Zfqo+GQzupHVg== X-Received: by 2002:a05:6a00:1a06:b0:63b:8423:9e31 with SMTP id g6-20020a056a001a0600b0063b84239e31mr29843428pfv.11.1683888429093; Fri, 12 May 2023 03:47:09 -0700 (PDT) Received: from localhost.localdomain (2001-b400-e2ae-0f1d-f6c2-46f4-c62f-3944.emome-ip6.hinet.net. [2001:b400:e2ae:f1d:f6c2:46f4:c62f:3944]) by smtp.gmail.com with ESMTPSA id g17-20020aa78751000000b0064358d032a4sm7019268pfo.145.2023.05.12.03.47.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 12 May 2023 03:47:08 -0700 (PDT) From: Victor Shih X-Google-Original-From: Victor Shih To: ulf.hansson@linaro.org, adrian.hunter@intel.com Cc: linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, benchuanggli@gmail.com, HL.Liu@genesyslogic.com.tw, Greg.tu@genesyslogic.com.tw, takahiro.akashi@linaro.org, dlunev@chromium.org, Victor Shih , Ben Chuang Subject: [PATCH V1 1/3] mmc: sdhci-pci-gli: Add Genesys Logic GL9767 support Date: Fri, 12 May 2023 18:45:57 +0800 Message-Id: <20230512104559.11218-2-victor.shih@genesyslogic.com.tw> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230512104559.11218-1-victor.shih@genesyslogic.com.tw> References: <20230512104559.11218-1-victor.shih@genesyslogic.com.tw> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org Add support for the GL9767 chipset. GL9767 supports SD3 mode likes UHS-I SDR50, SDR104. Enable MSI interrupt for GL9767. Some platform do not support PCI INTx and devices can not work without interrupt. Signed-off-by: Ben Chuang Signed-off-by: Victor Shih --- drivers/mmc/host/sdhci-pci-core.c | 1 + drivers/mmc/host/sdhci-pci-gli.c | 132 ++++++++++++++++++++++++++++++ drivers/mmc/host/sdhci-pci.h | 2 + 3 files changed, 135 insertions(+) diff --git a/drivers/mmc/host/sdhci-pci-core.c b/drivers/mmc/host/sdhci-pci-core.c index 01975d145200..1c2572c0f012 100644 --- a/drivers/mmc/host/sdhci-pci-core.c +++ b/drivers/mmc/host/sdhci-pci-core.c @@ -1903,6 +1903,7 @@ static const struct pci_device_id pci_ids[] = { SDHCI_PCI_DEVICE(GLI, 9750, gl9750), SDHCI_PCI_DEVICE(GLI, 9755, gl9755), SDHCI_PCI_DEVICE(GLI, 9763E, gl9763e), + SDHCI_PCI_DEVICE(GLI, 9767, gl9767), SDHCI_PCI_DEVICE_CLASS(AMD, SYSTEM_SDHCI, PCI_CLASS_MASK, amd), /* Generic SD host controller */ {PCI_DEVICE_CLASS(SYSTEM_SDHCI, PCI_CLASS_MASK)}, diff --git a/drivers/mmc/host/sdhci-pci-gli.c b/drivers/mmc/host/sdhci-pci-gli.c index 633a8ee8f8c5..300512740cb0 100644 --- a/drivers/mmc/host/sdhci-pci-gli.c +++ b/drivers/mmc/host/sdhci-pci-gli.c @@ -149,6 +149,32 @@ #define PCI_GLI_9755_PM_CTRL 0xFC #define PCI_GLI_9755_PM_STATE GENMASK(1, 0) +#define SDHCI_GLI_9767_GM_BURST_SIZE 0x510 +#define SDHCI_GLI_9767_GM_BURST_SIZE_AXI_ALWAYS_SET BIT(8) + +#define PCIE_GLI_9767_VHS 0x884 +#define GLI_9767_VHS_REV GENMASK(19, 16) +#define GLI_9767_VHS_REV_R 0x0 +#define GLI_9767_VHS_REV_M 0x1 +#define GLI_9767_VHS_REV_W 0x2 + +#define PCIE_GLI_9767_PWR_MACRO_CTL 0x8D0 +#define PCIE_GLI_9767_PWR_MACRO_CTL_LOW_VOLTAGE GENMASK(3, 0) +#define PCIE_GLI_9767_PWR_MACRO_CTL_LD0_LOW_OUTPUT_VOLTAGE GENMASK(15, 12) +#define PCIE_GLI_9767_PWR_MACRO_CTL_LD0_LOW_OUTPUT_VOLTAGE_VALUE 0x7 +#define PCIE_GLI_9767_PWR_MACRO_CTL_RCLK_AMPLITUDE_CTL GENMASK(29, 28) +#define PCIE_GLI_9767_PWR_MACRO_CTL_RCLK_AMPLITUDE_CTL_VALUE 0x3 + +#define PCIE_GLI_9767_SCR 0x8E0 +#define PCIE_GLI_9767_SCR_AUTO_AXI_W_BURST BIT(6) +#define PCIE_GLI_9767_SCR_AUTO_AXI_R_BURST BIT(7) +#define PCIE_GLI_9767_SCR_AXI_REQ BIT(9) +#define PCIE_GLI_9767_SCR_CARD_DET_PWR_SAVING_EN BIT(10) +#define PCIE_GLI_9767_SCR_SYSTEM_CLK_SELECT_MODE0 BIT(16) +#define PCIE_GLI_9767_SCR_SYSTEM_CLK_SELECT_MODE1 BIT(17) +#define PCIE_GLI_9767_SCR_CORE_PWR_D3_OFF BIT(21) +#define PCIE_GLI_9767_SCR_CFG_RST_DATA_LINK_DOWN BIT(30) + #define GLI_MAX_TUNING_LOOP 40 /* Genesys Logic chipset */ @@ -693,6 +719,61 @@ static void gl9755_hw_setting(struct sdhci_pci_slot *slot) gl9755_wt_off(pdev); } +static void gli_set_9767(struct sdhci_host *host) +{ + u32 value; + + value = sdhci_readl(host, SDHCI_GLI_9767_GM_BURST_SIZE); + value &= ~SDHCI_GLI_9767_GM_BURST_SIZE_AXI_ALWAYS_SET; + sdhci_writel(host, value, SDHCI_GLI_9767_GM_BURST_SIZE); +} + +static void gl9767_hw_setting(struct sdhci_pci_slot *slot) +{ + struct pci_dev *pdev = slot->chip->pdev; + u32 value; + + pci_read_config_dword(pdev, PCIE_GLI_9767_VHS, &value); + value &= ~GLI_9767_VHS_REV; + value |= FIELD_PREP(GLI_9767_VHS_REV, GLI_9767_VHS_REV_W); + pci_write_config_dword(pdev, PCIE_GLI_9767_VHS, value); + + pci_read_config_dword(pdev, PCIE_GLI_9767_PWR_MACRO_CTL, &value); + value &= ~(PCIE_GLI_9767_PWR_MACRO_CTL_LOW_VOLTAGE | + PCIE_GLI_9767_PWR_MACRO_CTL_LD0_LOW_OUTPUT_VOLTAGE | + PCIE_GLI_9767_PWR_MACRO_CTL_RCLK_AMPLITUDE_CTL); + + value |= PCIE_GLI_9767_PWR_MACRO_CTL_LOW_VOLTAGE | + FIELD_PREP(PCIE_GLI_9767_PWR_MACRO_CTL_LD0_LOW_OUTPUT_VOLTAGE, + PCIE_GLI_9767_PWR_MACRO_CTL_LD0_LOW_OUTPUT_VOLTAGE_VALUE) | + FIELD_PREP(PCIE_GLI_9767_PWR_MACRO_CTL_RCLK_AMPLITUDE_CTL, + PCIE_GLI_9767_PWR_MACRO_CTL_RCLK_AMPLITUDE_CTL_VALUE); + pci_write_config_dword(pdev, PCIE_GLI_9767_PWR_MACRO_CTL, value); + + pci_read_config_dword(pdev, PCIE_GLI_9767_SCR, &value); + value &= ~(PCIE_GLI_9767_SCR_SYSTEM_CLK_SELECT_MODE0 | + PCIE_GLI_9767_SCR_SYSTEM_CLK_SELECT_MODE1 | + PCIE_GLI_9767_SCR_CFG_RST_DATA_LINK_DOWN); + + value |= PCIE_GLI_9767_SCR_AUTO_AXI_W_BURST | + PCIE_GLI_9767_SCR_AUTO_AXI_R_BURST | + PCIE_GLI_9767_SCR_AXI_REQ | + PCIE_GLI_9767_SCR_CARD_DET_PWR_SAVING_EN | + PCIE_GLI_9767_SCR_CORE_PWR_D3_OFF; + pci_write_config_dword(pdev, PCIE_GLI_9767_SCR, value); + + pci_read_config_dword(pdev, PCIE_GLI_9767_VHS, &value); + value &= ~GLI_9767_VHS_REV; + value |= FIELD_PREP(GLI_9767_VHS_REV, GLI_9767_VHS_REV_R); + pci_write_config_dword(pdev, PCIE_GLI_9767_VHS, value); +} + +static void sdhci_gl9767_reset(struct sdhci_host *host, u8 mask) +{ + sdhci_reset(host, mask); + gli_set_9767(host); +} + static int gli_probe_slot_gl9750(struct sdhci_pci_slot *slot) { struct sdhci_host *host = slot->host; @@ -717,6 +798,19 @@ static int gli_probe_slot_gl9755(struct sdhci_pci_slot *slot) return 0; } +static int gli_probe_slot_gl9767(struct sdhci_pci_slot *slot) +{ + struct sdhci_host *host = slot->host; + + gli_set_9767(host); + gl9767_hw_setting(slot); + gli_pcie_enable_msi(slot); + slot->host->mmc->caps2 |= MMC_CAP2_NO_SDIO; + sdhci_enable_v4_mode(host); + + return 0; +} + static void sdhci_gli_voltage_switch(struct sdhci_host *host) { /* @@ -740,6 +834,25 @@ static void sdhci_gli_voltage_switch(struct sdhci_host *host) usleep_range(100000, 110000); } +static void sdhci_gl9767_voltage_switch(struct sdhci_host *host) +{ + /* + * According to Section 3.6.1 signal voltage switch procedure in + * SD Host Controller Simplified Spec. 4.20, steps 6~8 are as + * follows: + * (6) Set 1.8V Signal Enable in the Host Control 2 register. + * (7) Wait 5ms. 1.8V voltage regulator shall be stable within this + * period. + * (8) If 1.8V Signal Enable is cleared by Host Controller, go to + * step (12). + * + * Wait 5ms after set 1.8V signal enable in Host Control 2 register + * to ensure 1.8V signal enable bit is set by GL9767. + * + */ + usleep_range(5000, 5500); +} + static void sdhci_gl9750_reset(struct sdhci_host *host, u8 mask) { sdhci_reset(host, mask); @@ -1150,3 +1263,22 @@ const struct sdhci_pci_fixes sdhci_gl9763e = { #endif .add_host = gl9763e_add_host, }; + +static const struct sdhci_ops sdhci_gl9767_ops = { + .set_clock = sdhci_set_clock, + .enable_dma = sdhci_pci_enable_dma, + .set_bus_width = sdhci_set_bus_width, + .reset = sdhci_gl9767_reset, + .set_uhs_signaling = sdhci_set_uhs_signaling, + .voltage_switch = sdhci_gl9767_voltage_switch, +}; + +const struct sdhci_pci_fixes sdhci_gl9767 = { + .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC, + .quirks2 = SDHCI_QUIRK2_BROKEN_DDR50, + .probe_slot = gli_probe_slot_gl9767, + .ops = &sdhci_gl9767_ops, +#ifdef CONFIG_PM_SLEEP + .resume = sdhci_pci_gli_resume, +#endif +}; diff --git a/drivers/mmc/host/sdhci-pci.h b/drivers/mmc/host/sdhci-pci.h index 3661a224fb04..9c8863956381 100644 --- a/drivers/mmc/host/sdhci-pci.h +++ b/drivers/mmc/host/sdhci-pci.h @@ -76,6 +76,7 @@ #define PCI_DEVICE_ID_GLI_9755 0x9755 #define PCI_DEVICE_ID_GLI_9750 0x9750 #define PCI_DEVICE_ID_GLI_9763E 0xe763 +#define PCI_DEVICE_ID_GLI_9767 0x9767 /* * PCI device class and mask @@ -195,5 +196,6 @@ extern const struct sdhci_pci_fixes sdhci_o2; extern const struct sdhci_pci_fixes sdhci_gl9750; extern const struct sdhci_pci_fixes sdhci_gl9755; extern const struct sdhci_pci_fixes sdhci_gl9763e; +extern const struct sdhci_pci_fixes sdhci_gl9767; #endif /* __SDHCI_PCI_H */ From patchwork Fri May 12 10:45:58 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Victor Shih X-Patchwork-Id: 13239113 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 9B335C77B75 for ; Fri, 12 May 2023 10:47:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240882AbjELKrf (ORCPT ); Fri, 12 May 2023 06:47:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46864 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240890AbjELKra (ORCPT ); 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[2001:b400:e2ae:f1d:f6c2:46f4:c62f:3944]) by smtp.gmail.com with ESMTPSA id g17-20020aa78751000000b0064358d032a4sm7019268pfo.145.2023.05.12.03.47.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 12 May 2023 03:47:11 -0700 (PDT) From: Victor Shih X-Google-Original-From: Victor Shih To: ulf.hansson@linaro.org, adrian.hunter@intel.com Cc: linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, benchuanggli@gmail.com, HL.Liu@genesyslogic.com.tw, Greg.tu@genesyslogic.com.tw, takahiro.akashi@linaro.org, dlunev@chromium.org, Victor Shih , Ben Chuang Subject: [PATCH V1 2/3] mmc: sdhci: Export sdhci_check_ro function symbol Date: Fri, 12 May 2023 18:45:58 +0800 Message-Id: <20230512104559.11218-3-victor.shih@genesyslogic.com.tw> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230512104559.11218-1-victor.shih@genesyslogic.com.tw> References: <20230512104559.11218-1-victor.shih@genesyslogic.com.tw> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org Export sdhci_check_ro() function symbols which are used by other SD Host controller drivers modules. Signed-off-by: Ben Chuang Signed-off-by: Victor Shih --- drivers/mmc/host/sdhci.c | 3 ++- drivers/mmc/host/sdhci.h | 1 + 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 3241916141d7..0c9b2006e24a 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -2513,7 +2513,7 @@ int sdhci_get_cd_nogpio(struct mmc_host *mmc) } EXPORT_SYMBOL_GPL(sdhci_get_cd_nogpio); -static int sdhci_check_ro(struct sdhci_host *host) +int sdhci_check_ro(struct sdhci_host *host) { unsigned long flags; int is_readonly; @@ -2536,6 +2536,7 @@ static int sdhci_check_ro(struct sdhci_host *host) return host->quirks & SDHCI_QUIRK_INVERTED_WRITE_PROTECT ? !is_readonly : is_readonly; } +EXPORT_SYMBOL_GPL(sdhci_check_ro); #define SAMPLE_COUNT 5 diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index f4f2085c274c..54e9e13108e3 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -780,6 +780,7 @@ void sdhci_set_power_and_bus_voltage(struct sdhci_host *host, void sdhci_set_power_noreg(struct sdhci_host *host, unsigned char mode, unsigned short vdd); int sdhci_get_cd_nogpio(struct mmc_host *mmc); +int sdhci_check_ro(struct sdhci_host *host); void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq); int sdhci_request_atomic(struct mmc_host *mmc, struct mmc_request *mrq); void sdhci_set_bus_width(struct sdhci_host *host, int width); From patchwork Fri May 12 10:45:59 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Victor Shih X-Patchwork-Id: 13239114 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 6D6E8C7EE25 for ; Fri, 12 May 2023 10:47:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240887AbjELKrg (ORCPT ); Fri, 12 May 2023 06:47:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46956 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240892AbjELKra (ORCPT ); Fri, 12 May 2023 06:47:30 -0400 Received: from mail-pg1-x533.google.com (mail-pg1-x533.google.com [IPv6:2607:f8b0:4864:20::533]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1D28AFE; Fri, 12 May 2023 03:47:15 -0700 (PDT) Received: by mail-pg1-x533.google.com with SMTP id 41be03b00d2f7-52c6504974dso8897018a12.2; Fri, 12 May 2023 03:47:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1683888434; x=1686480434; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=d5wxPW18b4R0sRXPhoTakncl9njdflZ8y6zNcQOexJI=; b=Z7k82tc2HoQiz2Y+96UNv7Gma09OEv5PLhls+jCo9aEUte0iTPhxbotyN+DXIUBMue Y6Aev3n2O7roahg7/7l73/5kAWs5HqOLRfDnXCQcd7hCaP1ywIO+R8fIXO+0TrTErBB7 cgY2uOyQHwr5gCNCgtO79cU66o4+cAnMw8Zc7SGcgJRfqzazi21jdsuwyHftM3cHezg7 d922Bl3ZWM9n9sDK9X4SPUAeUm8urFCKzff6fyyoo7wDTnIUFt7NQ8rQrLIp+GprtJe7 k39EjFxVHPcGAm3EhGaX0ZFDS/WvgHRJm/SfVxoe6bQKDCHeu5t/4S39Ns9cKrSjQ7vh rRMQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1683888434; x=1686480434; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=d5wxPW18b4R0sRXPhoTakncl9njdflZ8y6zNcQOexJI=; b=ctAEBSOr93dyjbqKW6P+oYIGX59kvTyLFsZiUzTsB/xVnZWtUw7TK7Jqjpvm+0RWXD I+nXu6Kuxu/ACH5cI1OMhP9sOndTWs50hy7NdLSkJ+ZNvbMR+lK5070xojbpMpkjIulN VJjhQRXKO3zi9y2t47rmRLDrnYjWbfTkl9r661h+icC7r8vMwvcF136QT74LPv54aVzw pVoc/nCpEPj9m9RJkrUkz/sy4hpXjJ1T+cwLRbwpspS/VuSSgRs0KH5okIgBWiUyJuKH Kqq0DGPh3trFwoE/w4ltAPA48fSxbNzg8YY0GN21vJHoz5J4faLI7iCOPjJWsyofDmgj f3UA== X-Gm-Message-State: AC+VfDxjZ7sTp5z9EtfMAnf6/Se6tNtU0OFlhfnQmGmFFdqjY6RvoOEV Ryb2gI1fEBJAgHWWU3Zuc20= X-Google-Smtp-Source: ACHHUZ4Bz89gnOwzGUX1G4Kyjn0//tzAicFQ9M2ExkdgqPkSqq4LDUZB6pp1iHaot/bqyz+yHvEYNw== X-Received: by 2002:a05:6a21:7881:b0:103:8590:bb50 with SMTP id bf1-20020a056a21788100b001038590bb50mr10019257pzc.44.1683888434485; Fri, 12 May 2023 03:47:14 -0700 (PDT) Received: from localhost.localdomain (2001-b400-e2ae-0f1d-f6c2-46f4-c62f-3944.emome-ip6.hinet.net. [2001:b400:e2ae:f1d:f6c2:46f4:c62f:3944]) by smtp.gmail.com with ESMTPSA id g17-20020aa78751000000b0064358d032a4sm7019268pfo.145.2023.05.12.03.47.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 12 May 2023 03:47:14 -0700 (PDT) From: Victor Shih X-Google-Original-From: Victor Shih To: ulf.hansson@linaro.org, adrian.hunter@intel.com Cc: linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, benchuanggli@gmail.com, HL.Liu@genesyslogic.com.tw, Greg.tu@genesyslogic.com.tw, takahiro.akashi@linaro.org, dlunev@chromium.org, Victor Shih , Ben Chuang Subject: [PATCH V1 3/3] mmc: sdhci-pci-gli: Add support SD Express card for GL9767 Date: Fri, 12 May 2023 18:45:59 +0800 Message-Id: <20230512104559.11218-4-victor.shih@genesyslogic.com.tw> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230512104559.11218-1-victor.shih@genesyslogic.com.tw> References: <20230512104559.11218-1-victor.shih@genesyslogic.com.tw> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org Add support SD Express card for GL9767. The workflow of the SD Express card in GL9767 is as below. 1. GL9767 operates in SD mode and set MMC_CAP2_SD_EXP flag. 2. If card is inserted, Host send CMD8 to ask the capabilities of the card. 3. If the card has PCIe capability and write protect is not enable, then init_sd_express() will be invoked. 4. GL9767 switch from SD mode to PCIe/NVMe mode and mmc driver handover control to NVMe driver. 5. If card is removed, GL9767 will return to SD mode. Signed-off-by: Ben Chuang Signed-off-by: Victor Shih --- drivers/mmc/host/sdhci-pci-gli.c | 115 +++++++++++++++++++++++++++++++ 1 file changed, 115 insertions(+) diff --git a/drivers/mmc/host/sdhci-pci-gli.c b/drivers/mmc/host/sdhci-pci-gli.c index 300512740cb0..a0f9c24439be 100644 --- a/drivers/mmc/host/sdhci-pci-gli.c +++ b/drivers/mmc/host/sdhci-pci-gli.c @@ -158,6 +158,13 @@ #define GLI_9767_VHS_REV_M 0x1 #define GLI_9767_VHS_REV_W 0x2 +#define PCIE_GLI_9767_CFG 0x8A0 +#define PCIE_GLI_9767_CFG_LOW_PWR_OFF BIT(12) + +#define PCIE_GLI_9767_COMBO_MUX_CTL 0x8C8 +#define PCIE_GLI_9767_COMBO_MUX_CTL_RST_EN BIT(6) +#define PCIE_GLI_9767_COMBO_MUX_CTL_WAIT_PERST_EN BIT(10) + #define PCIE_GLI_9767_PWR_MACRO_CTL 0x8D0 #define PCIE_GLI_9767_PWR_MACRO_CTL_LOW_VOLTAGE GENMASK(3, 0) #define PCIE_GLI_9767_PWR_MACRO_CTL_LD0_LOW_OUTPUT_VOLTAGE GENMASK(15, 12) @@ -175,6 +182,27 @@ #define PCIE_GLI_9767_SCR_CORE_PWR_D3_OFF BIT(21) #define PCIE_GLI_9767_SCR_CFG_RST_DATA_LINK_DOWN BIT(30) +#define PCIE_GLI_9767_SDHC_CAP 0x91C +#define PCIE_GLI_9767_SDHC_CAP_SDEI_RESULT BIT(5) + +#define PCIE_GLI_9767_SD_EXPRESS_CTL 0x940 +#define PCIE_GLI_9767_SD_EXPRESS_CTL_SDEI_EXE BIT(0) +#define PCIE_GLI_9767_SD_EXPRESS_CTL_SD_EXPRESS_MODE BIT(1) + +#define PCIE_GLI_9767_SD_DATA_MULTI_CTL 0x944 +#define PCIE_GLI_9767_SD_DATA_MULTI_CTL_DISCONNECT_TIME GENMASK(23, 16) +#define PCIE_GLI_9767_SD_DATA_MULTI_CTL_DISCONNECT_TIME_VALUE 0x64 + +#define PCIE_GLI_9767_NORMAL_ERR_INT_STATUS_REG2 0x950 +#define PCIE_GLI_9767_NORMAL_ERR_INT_STATUS_REG2_SDEI_COMPLETE BIT(0) +#define PCIE_GLI_9767_NORMAL_ERR_INT_STATUS_REG2_SDEI_GEN_TIMER GENMASK(1, 0) + +#define PCIE_GLI_9767_NORMAL_ERR_INT_STATUS_EN_REG2 0x954 +#define PCIE_GLI_9767_NORMAL_ERR_INT_STATUS_EN_REG2_SDEI_COMPLETE_STATUS_EN GENMASK(1, 0) + +#define PCIE_GLI_9767_NORMAL_ERR_INT_SIGNAL_EN_REG2 0x958 +#define PCIE_GLI_9767_NORMAL_ERR_INT_SIGNAL_EN_REG2_SDEI_COMPLETE_SIGNAL_EN GENMASK(1, 0) + #define GLI_MAX_TUNING_LOOP 40 /* Genesys Logic chipset */ @@ -774,6 +802,91 @@ static void sdhci_gl9767_reset(struct sdhci_host *host, u8 mask) gli_set_9767(host); } +static int gl9767_init_sd_express(struct mmc_host *mmc, struct mmc_ios *ios) +{ + struct sdhci_host *host = mmc_priv(mmc); + struct sdhci_pci_slot *slot = sdhci_priv(host); + struct pci_dev *pdev; + u32 value; + int i; + + pdev = slot->chip->pdev; + + if (sdhci_check_ro(host)) { + mmc->ios.timing &= ~(MMC_TIMING_SD_EXP | MMC_TIMING_SD_EXP_1_2V); + return 0; + } + + pci_read_config_dword(pdev, PCIE_GLI_9767_VHS, &value); + value &= ~GLI_9767_VHS_REV; + value |= FIELD_PREP(GLI_9767_VHS_REV, GLI_9767_VHS_REV_W); + pci_write_config_dword(pdev, PCIE_GLI_9767_VHS, value); + + pci_read_config_dword(pdev, PCIE_GLI_9767_COMBO_MUX_CTL, &value); + value &= ~(PCIE_GLI_9767_COMBO_MUX_CTL_RST_EN | PCIE_GLI_9767_COMBO_MUX_CTL_WAIT_PERST_EN); + pci_write_config_dword(pdev, PCIE_GLI_9767_COMBO_MUX_CTL, value); + + pci_read_config_dword(pdev, PCIE_GLI_9767_SD_DATA_MULTI_CTL, &value); + value &= ~PCIE_GLI_9767_SD_DATA_MULTI_CTL_DISCONNECT_TIME; + value |= FIELD_PREP(PCIE_GLI_9767_SD_DATA_MULTI_CTL_DISCONNECT_TIME, + PCIE_GLI_9767_SD_DATA_MULTI_CTL_DISCONNECT_TIME_VALUE); + pci_write_config_dword(pdev, PCIE_GLI_9767_SD_DATA_MULTI_CTL, value); + + pci_read_config_dword(pdev, PCIE_GLI_9767_NORMAL_ERR_INT_STATUS_REG2, &value); + value |= PCIE_GLI_9767_NORMAL_ERR_INT_STATUS_REG2_SDEI_GEN_TIMER; + pci_write_config_dword(pdev, PCIE_GLI_9767_NORMAL_ERR_INT_STATUS_REG2, value); + + pci_read_config_dword(pdev, PCIE_GLI_9767_NORMAL_ERR_INT_STATUS_EN_REG2, &value); + value |= PCIE_GLI_9767_NORMAL_ERR_INT_STATUS_EN_REG2_SDEI_COMPLETE_STATUS_EN; + pci_write_config_dword(pdev, PCIE_GLI_9767_NORMAL_ERR_INT_STATUS_EN_REG2, value); + + pci_read_config_dword(pdev, PCIE_GLI_9767_NORMAL_ERR_INT_SIGNAL_EN_REG2, &value); + value |= PCIE_GLI_9767_NORMAL_ERR_INT_SIGNAL_EN_REG2_SDEI_COMPLETE_SIGNAL_EN; + pci_write_config_dword(pdev, PCIE_GLI_9767_NORMAL_ERR_INT_SIGNAL_EN_REG2, value); + + pci_read_config_dword(pdev, PCIE_GLI_9767_CFG, &value); + value |= PCIE_GLI_9767_CFG_LOW_PWR_OFF; + pci_write_config_dword(pdev, PCIE_GLI_9767_CFG, value); + + value = sdhci_readw(host, SDHCI_CLOCK_CONTROL); + value &= ~(SDHCI_CLOCK_CARD_EN | SDHCI_CLOCK_PLL_EN); + sdhci_writew(host, value, SDHCI_CLOCK_CONTROL); + + value = sdhci_readb(host, SDHCI_POWER_CONTROL); + value |= ((SDHCI_POWER_180 | SDHCI_POWER_ON) << 4); + sdhci_writeb(host, value, SDHCI_POWER_CONTROL); + + pci_read_config_dword(pdev, PCIE_GLI_9767_SD_EXPRESS_CTL, &value); + value |= PCIE_GLI_9767_SD_EXPRESS_CTL_SDEI_EXE; + pci_write_config_dword(pdev, PCIE_GLI_9767_SD_EXPRESS_CTL, value); + + for (i = 0; i < 10; i++) { + mdelay(10); + pci_read_config_dword(pdev, PCIE_GLI_9767_NORMAL_ERR_INT_STATUS_REG2, &value); + if (value & PCIE_GLI_9767_NORMAL_ERR_INT_STATUS_REG2_SDEI_COMPLETE) { + pci_write_config_dword(pdev, PCIE_GLI_9767_NORMAL_ERR_INT_STATUS_REG2, + value); + break; + } + } + + pci_read_config_dword(pdev, PCIE_GLI_9767_SDHC_CAP, &value); + if ((value & PCIE_GLI_9767_SDHC_CAP_SDEI_RESULT) == PCIE_GLI_9767_SDHC_CAP_SDEI_RESULT) { + pci_read_config_dword(pdev, PCIE_GLI_9767_SD_EXPRESS_CTL, &value); + value |= PCIE_GLI_9767_SD_EXPRESS_CTL_SD_EXPRESS_MODE; + pci_write_config_dword(pdev, PCIE_GLI_9767_SD_EXPRESS_CTL, value); + } else { + mmc->ios.timing &= ~(MMC_TIMING_SD_EXP | MMC_TIMING_SD_EXP_1_2V); + } + + pci_read_config_dword(pdev, PCIE_GLI_9767_VHS, &value); + value &= ~GLI_9767_VHS_REV; + value |= FIELD_PREP(GLI_9767_VHS_REV, GLI_9767_VHS_REV_R); + pci_write_config_dword(pdev, PCIE_GLI_9767_VHS, value); + + return 0; +} + static int gli_probe_slot_gl9750(struct sdhci_pci_slot *slot) { struct sdhci_host *host = slot->host; @@ -806,6 +919,8 @@ static int gli_probe_slot_gl9767(struct sdhci_pci_slot *slot) gl9767_hw_setting(slot); gli_pcie_enable_msi(slot); slot->host->mmc->caps2 |= MMC_CAP2_NO_SDIO; + host->mmc->caps2 |= MMC_CAP2_SD_EXP; + host->mmc_host_ops.init_sd_express = gl9767_init_sd_express; sdhci_enable_v4_mode(host); return 0;