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Thu, 21 Sep 2023 18:51:08 -0700 (PDT) From: Drew Fustini Date: Thu, 21 Sep 2023 18:49:48 -0700 Subject: [PATCH 1/6] dt-bindings: mmc: sdhci-of-dwcmhsc: Add T-Head TH1520 support MIME-Version: 1.0 Message-Id: <20230921-th1520-mmc-v1-1-49f76c274fb3@baylibre.com> References: <20230921-th1520-mmc-v1-0-49f76c274fb3@baylibre.com> In-Reply-To: <20230921-th1520-mmc-v1-0-49f76c274fb3@baylibre.com> To: Ulf Hansson , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jisheng Zhang , Adrian Hunter , Guo Ren , Fu Wei , Paul Walmsley , Palmer Dabbelt , Albert Ou , Conor Dooley Cc: Robert Nelson , Jason Kridner , Xi Ruoyao , Han Gao , Icenowy Zheng , linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Drew Fustini X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1695347467; l=1067; i=dfustini@baylibre.com; s=20230430; h=from:subject:message-id; bh=lVStiUHxeHbyNt2+zib4d2cdPudtKK6oNMBUQREoPOc=; b=Q8id6rVsSYwP6E+iXtE8EEJBdpfTwGmm0EDwKwz276FYyD9CgqZLnz0ACffcwGavDc/d0fScS a4r/IUtRvh1A4kShsI9oBwJNbY9Otbdr+VEmtnmc12pL4kS6vyLRKBn X-Developer-Key: i=dfustini@baylibre.com; a=ed25519; pk=p3GKE9XFmjhwAayAHG4U108yag7V8xQVd4zJLdW0g7g= X-Spam-Status: No, score=-0.8 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on agentk.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (agentk.vger.email [0.0.0.0]); Thu, 21 Sep 2023 18:51:24 -0700 (PDT) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1777708433393793696 X-GMAIL-MSGID: 1777708433393793696 Add compatible value for the T-Head TH1520 dwcmshc controller and add thead,phy-pull-up property. Signed-off-by: Drew Fustini --- Documentation/devicetree/bindings/mmc/snps,dwcmshc-sdhci.yaml | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/devicetree/bindings/mmc/snps,dwcmshc-sdhci.yaml b/Documentation/devicetree/bindings/mmc/snps,dwcmshc-sdhci.yaml index a43eb837f8da..46b768d46712 100644 --- a/Documentation/devicetree/bindings/mmc/snps,dwcmshc-sdhci.yaml +++ b/Documentation/devicetree/bindings/mmc/snps,dwcmshc-sdhci.yaml @@ -19,6 +19,7 @@ properties: - rockchip,rk3568-dwcmshc - rockchip,rk3588-dwcmshc - snps,dwcmshc-sdhci + - thead,th1520-dwcmshc reg: maxItems: 1 @@ -60,6 +61,9 @@ properties: description: Specify the number of delay for tx sampling. $ref: /schemas/types.yaml#/definitions/uint8 + thead,phy-pull-up: + description: Enable weak pull-up on PHY pads + type: boolean required: - compatible From patchwork Fri Sep 22 01:49:49 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Drew Fustini X-Patchwork-Id: 143202 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:612c:172:b0:3f2:4152:657d with SMTP id h50csp5355294vqi; Thu, 21 Sep 2023 23:17:01 -0700 (PDT) X-Google-Smtp-Source: AGHT+IHfeogIlHdSR0799z5j3QWpdF6znfmGLMeh9Jp5/BcBVk/X4m/wFmXdaKXUUsxt3/wXxoUB X-Received: by 2002:a17:90b:19c3:b0:274:1bb1:415a with SMTP id nm3-20020a17090b19c300b002741bb1415amr7176252pjb.41.1695363421726; Thu, 21 Sep 2023 23:17:01 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1695363421; cv=none; d=google.com; s=arc-20160816; b=QTmRmGvHt7Wc2rmWnU6YNZAMa77HOJzlXnETnHV2Wy5scJtYCjuTKu0QaWxJiJSsIN i23/mHgVJF1aHQ9hsrTH7RgxDJW+tBVf6J0Uvyac/3RgY0kM3ylsTIWy5MtPn6BFFCV1 4NPLDz/cXxUkKQtd0RqpDJ/hNt9h8KAyKFvKTI+WcLQCBTb77Xdbd0eUVcQOzU8Gdk17 bEU6u85pskyvNh9eVqqCy+4hJ1IlYs+Ij7gxzGA/xb0uLDKrwB0YDzNkHRo6lmOp8HeD fPIfcMWzBMEb1KNB6TaDmd9w0q1KrgQeqzhrPT/uUQ2aU/O4czV5spWFccEENBPw3sZb Rv0Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:cc:to:in-reply-to:references:message-id :content-transfer-encoding:mime-version:subject:date:from :dkim-signature; bh=ixTqiGVx8ZXpjpR7y6lRGGFsz7OZ+ET+MZdQ4NUAsFY=; fh=vHR8U309XOCZR8G4JUyhb/0ihb0aVduZkDFEUxYc3iE=; b=H+W8WO2DMFbdCPOgtVkMDHnFsOfSzmQCyx1/IgMouuYEfYnO0Ag8vGCV0xv+a85jBD 7+aF2Htm67NMDe0a1tEZXQQeSE7xpM+EPW09egaM657c369Mu7UQwmyxM//iUcpPh40O hYLTF9D9DUCdRmiSetpnQvpYEW9jyq7KRWjzXr2Iy6aG1UGAxZao6AqnqtuiTmAKUF5c RqwsQekP20r/7UT5sSTAzzotyhg6eCUHkCnXoa23hJ3TQB4yQ4D8wnsfuOmp/XS3bROx K6vQ3CWGTix1fDMBD6SFPQ1ay81rXknaujBFxbkto1b6TvcJ9Gsb0/IieR5dr5JaAux+ 2bdA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@baylibre-com.20230601.gappssmtp.com header.s=20230601 header.b=0BJaoaU9; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:7 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from snail.vger.email (snail.vger.email. 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Thu, 21 Sep 2023 18:51:09 -0700 (PDT) From: Drew Fustini Date: Thu, 21 Sep 2023 18:49:49 -0700 Subject: [PATCH 2/6] mmc: sdhci: add __sdhci_execute_tuning() to header MIME-Version: 1.0 Message-Id: <20230921-th1520-mmc-v1-2-49f76c274fb3@baylibre.com> References: <20230921-th1520-mmc-v1-0-49f76c274fb3@baylibre.com> In-Reply-To: <20230921-th1520-mmc-v1-0-49f76c274fb3@baylibre.com> To: Ulf Hansson , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jisheng Zhang , Adrian Hunter , Guo Ren , Fu Wei , Paul Walmsley , Palmer Dabbelt , Albert Ou , Conor Dooley Cc: Robert Nelson , Jason Kridner , Xi Ruoyao , Han Gao , Icenowy Zheng , linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Drew Fustini X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1695347467; l=1797; i=dfustini@baylibre.com; s=20230430; h=from:subject:message-id; bh=jbhsItAspw9Y505sHjMPZkocmfoBMXCEAbwf8HhAE8A=; b=Y7zI2YH3NQD0FaxiSQ4VnQS2RFqoHRb3cydOhAc2I8kHbSV81T3H1sj3MdzwctHhwtJlv39EH CGD7yjz/YJWDePGxpJZ2guSYNA4iKk5mDzTqvA3yDNkTUQHmVRbKFIQ X-Developer-Key: i=dfustini@baylibre.com; a=ed25519; pk=p3GKE9XFmjhwAayAHG4U108yag7V8xQVd4zJLdW0g7g= X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (snail.vger.email [0.0.0.0]); Thu, 21 Sep 2023 18:51:28 -0700 (PDT) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1777717395644225830 X-GMAIL-MSGID: 1777717395644225830 Expose __sdhci_execute_tuning() so that it can be called from the mmc host controller drivers. In the sdhci-of-dwcmshc driver, sdhci_dwcmshc_th1520_ops sets platform_execute_tuning to th1520_execute_tuning(). That function has to manipulate phy registers before tuning can be performed. To avoid copying the code verbatim from __sdhci_execute_tuning() into th1520_execute_tuning(), make it possible for __sdhci_execute_tuning() to be called from sdhci-of-dwcmshc. Signed-off-by: Drew Fustini --- drivers/mmc/host/sdhci.c | 2 +- drivers/mmc/host/sdhci.h | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index ff41aa56564e..fd607058d176 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -2841,7 +2841,7 @@ void sdhci_send_tuning(struct sdhci_host *host, u32 opcode) } EXPORT_SYMBOL_GPL(sdhci_send_tuning); -static int __sdhci_execute_tuning(struct sdhci_host *host, u32 opcode) +int __sdhci_execute_tuning(struct sdhci_host *host, u32 opcode) { int i; diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index f219bdea8f28..a20864fc0641 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -793,6 +793,7 @@ void sdhci_set_bus_width(struct sdhci_host *host, int width); void sdhci_reset(struct sdhci_host *host, u8 mask); void sdhci_set_uhs_signaling(struct sdhci_host *host, unsigned timing); int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode); +int __sdhci_execute_tuning(struct sdhci_host *host, u32 opcode); void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios); int sdhci_start_signal_voltage_switch(struct mmc_host *mmc, struct mmc_ios *ios); From patchwork Fri Sep 22 01:49:50 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Drew Fustini X-Patchwork-Id: 143177 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:612c:172:b0:3f2:4152:657d with SMTP id h50csp5324976vqi; Thu, 21 Sep 2023 21:55:20 -0700 (PDT) X-Google-Smtp-Source: AGHT+IFDxx/90NZUKjBGkNOO1d24YZMG+/dlCpH0NKB2rP9ACuHexYi6hpfDUiX1SGKGGbrvKEH1 X-Received: by 2002:a05:6a00:2e22:b0:68f:ecb9:5fde with SMTP id fc34-20020a056a002e2200b0068fecb95fdemr8588853pfb.34.1695358520613; Thu, 21 Sep 2023 21:55:20 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1695358520; cv=none; d=google.com; s=arc-20160816; b=BqWi6jSC1RmMbQ7JFs8tEJZUfsyulY4t6R1kx3R/TudYspPclHXtIuMLoQJnVVG1Ft fnJ0GHX1MDlfaz2si2TGCjP4HDTruoDKoDUMoH6V+w1kIi2iZshQnHlCj88MZP+WZt5n /B3y746OFOntBRUdK73lSdbUIfuqQDZue58kAaxfVAF8+kMcjO+n/+25vcP7SRkU+MGQ RitCj4Y+cD28f5HUYnjB0udITH+eY7w7PqE+xnvzlKi0aOn1mmRDwU44gU8jE6R5GeE0 j8sjaUxBYp1uVYD725DRQ5ttqYFOFpt57TC61GUYsb3lqjTFog3rMwJs5YlYY3cdAthw BbtA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:cc:to:in-reply-to:references:message-id :content-transfer-encoding:mime-version:subject:date:from :dkim-signature; bh=1Qr4tSpb4BNnKQQwWMoToDq5tTNIzWA+Sp0qHl9b8Mo=; fh=vHR8U309XOCZR8G4JUyhb/0ihb0aVduZkDFEUxYc3iE=; b=avihtSwiihsToBEpj28RrXi6mGfwYNJ2EGQP9Su/r6KAuT/Cd44IrXlqizYW+J6Xkh 2b6Nibf7YDE7IEyzBBFBoewL1kzpUvPmTrz8TnGaoyXwV9IvpjvQ/bG5E8Nu7ruZSp91 IpWwaj3C+iLcpvGQl23S5QeVrCx6b6+zLnsXKDYehYveZLPvPPgyuFReOckCVq/F6aPS 3tL28Ud8uUuJhzry0WehSH/+/47Nca44VqruM3cfZsizubG9YELN5jXNTgvFv7QokdOA iDD2rJXroUivG6IckpiPNOajgVAaEvf/JLSoOWetzAO/V1uR2SnhOHY3r2znevq/OSSU o51A== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@baylibre-com.20230601.gappssmtp.com header.s=20230601 header.b=CSA8i5kc; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:7 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from snail.vger.email (snail.vger.email. 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Thu, 21 Sep 2023 18:51:10 -0700 (PDT) From: Drew Fustini Date: Thu, 21 Sep 2023 18:49:50 -0700 Subject: [PATCH 3/6] mmc: sdhci-of-dwcmshc: Add support for T-Head TH1520 MIME-Version: 1.0 Message-Id: <20230921-th1520-mmc-v1-3-49f76c274fb3@baylibre.com> References: <20230921-th1520-mmc-v1-0-49f76c274fb3@baylibre.com> In-Reply-To: <20230921-th1520-mmc-v1-0-49f76c274fb3@baylibre.com> To: Ulf Hansson , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jisheng Zhang , Adrian Hunter , Guo Ren , Fu Wei , Paul Walmsley , Palmer Dabbelt , Albert Ou , Conor Dooley Cc: Robert Nelson , Jason Kridner , Xi Ruoyao , Han Gao , Icenowy Zheng , linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Drew Fustini X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1695347467; l=20376; i=dfustini@baylibre.com; s=20230430; h=from:subject:message-id; bh=LDBhzAz693ogyYuKvJM9mF/EbXQOvMewS07B6vi+b3k=; b=yYz3jnd3fEfUzx0/uJpKvvgpPyCv7j4OeZ9Sn2VxAp4GZKuyrjqgk7tJ8bGXYL5sV2RObxTKr pp//Lt66lltA4rUCNzwYqkpUs+FZmCsr1rEqst8FYmfO5JZpmDkH1V1 X-Developer-Key: i=dfustini@baylibre.com; a=ed25519; pk=p3GKE9XFmjhwAayAHG4U108yag7V8xQVd4zJLdW0g7g= X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (snail.vger.email [0.0.0.0]); Thu, 21 Sep 2023 18:51:34 -0700 (PDT) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1777712256276982317 X-GMAIL-MSGID: 1777712256276982317 Add support for the mmc controller in the T-Head TH1520 with the new compatible "thead,th1520-dwcmshc". Implement custom sdhci_ops for set_uhs_signaling, reset, voltage_switch, and platform_execute_tuning. Signed-off-by: Drew Fustini --- drivers/mmc/host/sdhci-of-dwcmshc.c | 456 ++++++++++++++++++++++++++++++++++++ 1 file changed, 456 insertions(+) diff --git a/drivers/mmc/host/sdhci-of-dwcmshc.c b/drivers/mmc/host/sdhci-of-dwcmshc.c index 3a3bae6948a8..7294bf1afb7d 100644 --- a/drivers/mmc/host/sdhci-of-dwcmshc.c +++ b/drivers/mmc/host/sdhci-of-dwcmshc.c @@ -35,6 +35,26 @@ #define DWCMSHC_CARD_IS_EMMC BIT(0) #define DWCMSHC_ENHANCED_STROBE BIT(8) #define DWCMSHC_EMMC_ATCTRL 0x40 +/* Tuning and auto-tuning fields in AT_CTRL_R control register */ +#define AT_CTRL_AT_EN 0x1 /* autotuning is enabled */ +#define AT_CTRL_CI_SEL_SHIFT 0x1 /* bit 1 */ +#define AT_CTRL_CI_SEL 0x1 /* interval to drive center phase select */ +#define AT_CTRL_SWIN_TH_EN_SHIFT 0x2 /* bit 2 */ +#define AT_CTRL_SWIN_TH_EN 0x1 /* sampling window threshold enable */ +#define AT_CTRL_RPT_TUNE_ERR_SHIFT 0x3 /* bit 3 */ +#define AT_CTRL_RPT_TUNE_ERR 0x1 /* enable reporting framing errors */ +#define AT_CTRL_SW_TUNE_EN_SHIFT 0x4 /* bit 4 */ +#define AT_CTRL_SW_TUNE_EN 0x1 /* enable software managed tuning */ +#define AT_CTRL_WIN_EDGE_SEL_SHIFT 0x8 /* bits [11:8] */ +#define AT_CTRL_WIN_EDGE_SEL 0xf /* sampling window edge select */ +#define AT_CTRL_TUNE_CLK_STOP_EN_SHIFT 0x10 /* bit 16 */ +#define AT_CTRL_TUNE_CLK_STOP_EN 0x1 /* clocks stopped during phase code change */ +#define AT_CTRL_PRE_CHANGE_DLY_SHIFT 0x11 /* bits [18:17] */ +#define AT_CTRL_PRE_CHANGE_DLY 0x1 /* 2-cycle latency */ +#define AT_CTRL_POST_CHANGE_DLY_SHIFT 0x13 /* bits [20:19] */ +#define AT_CTRL_POST_CHANGE_DLY 0x3 /* 4-cycle latency */ +#define AT_CTRL_SWIN_TH_VAL_SHIFT 0x18 /* bits [31:24] */ +#define AT_CTRL_SWIN_TH_VAL 0x9 /* sampling window threshold */ /* Rockchip specific Registers */ #define DWCMSHC_EMMC_DLL_CTRL 0x800 @@ -72,6 +92,84 @@ (((x) & DWCMSHC_EMMC_DLL_TIMEOUT) == 0)) #define RK35xx_MAX_CLKS 3 +/* PHY register area pointer */ +#define DWC_MSHC_PTR_PHY_R 0x300 + +/* PHY general configuration */ +#define PHY_CNFG_R (DWC_MSHC_PTR_PHY_R + 0x00) +#define PHY_CNFG_RSTN_DEASSERT 0x1 /* Deassert PHY reset */ +#define PHY_CNFG_PAD_SP_SHIFT 0x10 /* bits [16:9] */ +#define PHY_CNFG_PAD_SP_VALUE 0x0c /* PMOS TX drive strength */ +#define PHY_CNFG_PAD_SN_SHIFT 0x14 /* bits [23:20] */ +#define PHY_CNFG_PAD_SN_VALUE 0x0c /* NMOS TX drive strength */ + +/* PHY command/response pad settings */ +#define PHY_CMDPAD_CNFG_R (DWC_MSHC_PTR_PHY_R + 0x04) + +/* PHY data pad settings */ +#define PHY_DATAPAD_CNFG_R (DWC_MSHC_PTR_PHY_R + 0x06) + +/* PHY clock pad settings */ +#define PHY_CLKPAD_CNFG_R (DWC_MSHC_PTR_PHY_R + 0x08) + +/* PHY strobe pad settings */ +#define PHY_STBPAD_CNFG_R (DWC_MSHC_PTR_PHY_R + 0x0a) + +/* PHY reset pad settings */ +#define PHY_RSTNPAD_CNFG_R (DWC_MSHC_PTR_PHY_R + 0x0c) + +/* Bitfields are common for all pad settings */ +#define PHY_PAD_RXSEL_1V8 0x1 /* Receiver type select for 1.8V */ +#define PHY_PAD_RXSEL_3V3 0x2 /* Receiver type select for 3.3V */ + +#define PHY_PAD_WEAKPULL_SHIFT 0x3 /* bits [4:3] */ +#define PHY_PAD_WEAKPULL_PULLUP 0x1 /* Weak pull down enabled */ +#define PHY_PAD_WEAKPULL_PULLDOWN 0x2 /* Weak pull down enabled */ + +#define PHY_PAD_TXSLEW_CTRL_P_SHIFT 0x5 /* bits [8:5] */ +#define PHY_PAD_TXSLEW_CTRL_P_VALUE 0x3 /* Slew control for P-Type pad TX */ +#define PHY_PAD_TXSLEW_CTRL_N_SHIFT 0x9 /* bits [12:9] */ +#define PHY_PAD_TXSLEW_CTRL_N_VALUE 0x3 /* Slew control for N-Type pad TX */ + +/* PHY CLK delay line settings */ +#define PHY_SDCLKDL_CNFG_R (DWC_MSHC_PTR_PHY_R + 0x1d) +#define PHY_SDCLKDL_CNFG_UPDATE_SHIFT 0x4 /* bit 4 */ +#define PHY_SDCLKDL_CNFG_UPDATE_DC 0x1 /* set before writing to SDCLKDL_DC */ + +/* PHY CLK delay line delay code */ +#define PHY_SDCLKDL_DC_R (DWC_MSHC_PTR_PHY_R + 0x1e) +#define PHY_SDCLKDL_DC_INITIAL 0x40 /* initial delay code */ +#define PHY_SDCLKDL_DC_DEFAULT 0x32 /* default delay code */ +#define PHY_SDCLKDL_DC_HS400 0x18 /* delay code for HS400 mode */ + +/* PHY drift_cclk_rx delay line configuration setting */ +#define PHY_ATDL_CNFG_R (DWC_MSHC_PTR_PHY_R + 0x21) +#define PHY_ATDL_CNFG_INPSEL_SHIFT 0x2 /* bits [3:2] */ +#define PHY_ATDL_CNFG_INPSEL_VALUE 0x3 /* delay line input source */ + +/* PHY DLL control settings */ +#define PHY_DLL_CTRL_R (DWC_MSHC_PTR_PHY_R + 0x24) +#define PHY_DLL_CTRL_DISABLE 0x0 /* PHY DLL is enabled */ +#define PHY_DLL_CTRL_ENABLE 0x1 /* PHY DLL is disabled */ + +/* PHY DLL configuration register 1 */ +#define PHY_DLL_CNFG1_R (DWC_MSHC_PTR_PHY_R + 0x25) +#define PHY_DLL_CNFG1_SLVDLY_SHIFT 0x4 /* bits [5:4] */ +#define PHY_DLL_CNFG1_SLVDLY_VALUE 0x2 /* DLL slave update delay input */ +#define PHY_DLL_CNFG1_WAITCYCLE 0x5 /* DLL wait cycle input */ + +/* PHY DLL configuration register 2 */ +#define PHY_DLL_CNFG2_R (DWC_MSHC_PTR_PHY_R + 0x26) +#define PHY_DLL_CNFG2_JUMPSTEP 0xa /* DLL jump step input */ + +/* PHY DLL master and slave delay line configuration settings */ +#define PHY_DLLDL_CNFG_R (DWC_MSHC_PTR_PHY_R + 0x28) +#define PHY_DLLDL_CNFG_SLV_INPSEL_SHIFT 0x5 /* bits [6:5] */ +#define PHY_DLLDL_CNFG_SLV_INPSEL_VALUE 0x3 /* clock source select for slave DL */ + +#define FLAG_PULL_UP_EN BIT(0) +#define FLAG_IO_FIXED_1V8 BIT(1) + #define BOUNDARY_OK(addr, len) \ ((addr | (SZ_128M - 1)) == ((addr + len - 1) | (SZ_128M - 1))) @@ -92,6 +190,8 @@ struct dwcmshc_priv { struct clk *bus_clk; int vendor_specific_area1; /* P_VENDOR_SPECIFIC_AREA reg */ void *priv; /* pointer to SoC private stuff */ + u16 delay_line; + u16 flags; }; /* @@ -157,6 +257,206 @@ static void dwcmshc_request(struct mmc_host *mmc, struct mmc_request *mrq) sdhci_request(mmc, mrq); } +static void th1520_phy_1_8v_init_no_pull(struct sdhci_host *host) +{ + u32 val; + + /* deassert phy reset */ + sdhci_writel(host, PHY_CNFG_RSTN_DEASSERT, PHY_CNFG_R); + + /* disable delay line */ + sdhci_writeb(host, PHY_SDCLKDL_CNFG_UPDATE_DC << PHY_SDCLKDL_CNFG_UPDATE_SHIFT, + PHY_SDCLKDL_CNFG_R); + + /* set delay line */ + sdhci_writeb(host, PHY_SDCLKDL_DC_INITIAL, PHY_SDCLKDL_DC_R); + + /* enable delay lane */ + val = sdhci_readb(host, PHY_SDCLKDL_CNFG_R); + val &= ~(PHY_SDCLKDL_CNFG_UPDATE_DC << PHY_SDCLKDL_CNFG_UPDATE_SHIFT); + sdhci_writeb(host, val, PHY_SDCLKDL_CNFG_R); + + /* configure phy pads */ + val = sdhci_readw(host, PHY_CMDPAD_CNFG_R); + sdhci_writew(host, val | PHY_PAD_RXSEL_1V8, PHY_CMDPAD_CNFG_R); + + val = sdhci_readw(host, PHY_DATAPAD_CNFG_R); + sdhci_writew(host, val | PHY_PAD_RXSEL_1V8, PHY_DATAPAD_CNFG_R); + + val = sdhci_readw(host, PHY_RSTNPAD_CNFG_R); + sdhci_writew(host, val | PHY_PAD_RXSEL_1V8, PHY_RSTNPAD_CNFG_R); + + val = sdhci_readw(host, PHY_STBPAD_CNFG_R); + sdhci_writew(host, val | PHY_PAD_RXSEL_1V8, PHY_STBPAD_CNFG_R); + + /* enable phy dll */ + val = sdhci_readb(host, PHY_DLL_CTRL_R); + sdhci_writeb(host, val | PHY_DLL_CTRL_ENABLE, PHY_DLL_CTRL_R); +} + +static void th1520_phy_3_3v_init_no_pull(struct sdhci_host *host) +{ + u32 val; + + /* deassert phy reset */ + sdhci_writel(host, PHY_CNFG_RSTN_DEASSERT, PHY_CNFG_R); + + /* disable delay line */ + sdhci_writeb(host, PHY_SDCLKDL_CNFG_UPDATE_DC << PHY_SDCLKDL_CNFG_UPDATE_SHIFT, + PHY_SDCLKDL_CNFG_R); + + /* set delay line */ + sdhci_writeb(host, PHY_SDCLKDL_DC_INITIAL, PHY_SDCLKDL_DC_R); + + /* enable delay lane */ + val = sdhci_readb(host, PHY_SDCLKDL_CNFG_R); + val &= ~(PHY_SDCLKDL_CNFG_UPDATE_DC << PHY_SDCLKDL_CNFG_UPDATE_SHIFT); + sdhci_writeb(host, val, PHY_SDCLKDL_CNFG_R); + + /* configure phy pads */ + val = sdhci_readw(host, PHY_CMDPAD_CNFG_R); + sdhci_writew(host, val | PHY_PAD_RXSEL_3V3, PHY_CMDPAD_CNFG_R); + + val = sdhci_readw(host, PHY_DATAPAD_CNFG_R); + sdhci_writew(host, val | PHY_PAD_RXSEL_3V3, PHY_DATAPAD_CNFG_R); + + val = sdhci_readw(host, PHY_RSTNPAD_CNFG_R); + sdhci_writew(host, val | PHY_PAD_RXSEL_3V3, PHY_RSTNPAD_CNFG_R); + + val = sdhci_readw(host, PHY_STBPAD_CNFG_R); + sdhci_writew(host, val | PHY_PAD_RXSEL_3V3, PHY_STBPAD_CNFG_R); + + /* enable phy dll */ + val = sdhci_readb(host, PHY_DLL_CTRL_R); + sdhci_writeb(host, val | PHY_DLL_CTRL_ENABLE, PHY_DLL_CTRL_R); +} + +static void th1520_phy_1_8v_init(struct sdhci_host *host) +{ + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); + struct dwcmshc_priv *priv = sdhci_pltfm_priv(pltfm_host); + u32 val; + + if (!priv) + return; + + if (!(priv->flags & FLAG_PULL_UP_EN)) { + th1520_phy_1_8v_init_no_pull(host); + return; + } + + /* deassert phy reset & set tx drive strength */ + sdhci_writel(host, PHY_CNFG_RSTN_DEASSERT | + (PHY_CNFG_PAD_SP_VALUE << PHY_CNFG_PAD_SP_SHIFT) | + (PHY_CNFG_PAD_SN_VALUE << PHY_CNFG_PAD_SN_SHIFT), + PHY_CNFG_R); + + /* disable delay line */ + sdhci_writeb(host, PHY_SDCLKDL_CNFG_UPDATE_DC << PHY_SDCLKDL_CNFG_UPDATE_SHIFT, + PHY_SDCLKDL_CNFG_R); + + /* set delay line */ + sdhci_writeb(host, priv->delay_line, PHY_SDCLKDL_DC_R); + sdhci_writeb(host, PHY_DLL_CNFG2_JUMPSTEP, PHY_DLL_CNFG2_R); + + /* enable delay lane */ + val = sdhci_readb(host, PHY_SDCLKDL_CNFG_R); + val &= ~(PHY_SDCLKDL_CNFG_UPDATE_DC << PHY_SDCLKDL_CNFG_UPDATE_SHIFT); + sdhci_writeb(host, val, PHY_SDCLKDL_CNFG_R); + + /* configure phy pads */ + val = PHY_PAD_RXSEL_1V8 | (PHY_PAD_WEAKPULL_PULLUP << PHY_PAD_WEAKPULL_SHIFT) | + (PHY_PAD_TXSLEW_CTRL_P_VALUE << PHY_PAD_TXSLEW_CTRL_P_SHIFT) | + (PHY_PAD_TXSLEW_CTRL_N_VALUE << PHY_PAD_TXSLEW_CTRL_N_SHIFT); + sdhci_writew(host, val, PHY_CMDPAD_CNFG_R); + sdhci_writew(host, val, PHY_DATAPAD_CNFG_R); + sdhci_writew(host, val, PHY_RSTNPAD_CNFG_R); + + val = (PHY_PAD_TXSLEW_CTRL_P_VALUE << PHY_PAD_TXSLEW_CTRL_P_SHIFT) | + (PHY_PAD_TXSLEW_CTRL_N_VALUE << PHY_PAD_TXSLEW_CTRL_N_SHIFT); + sdhci_writew(host, val, PHY_CLKPAD_CNFG_R); + + val = PHY_PAD_RXSEL_1V8 | (PHY_PAD_WEAKPULL_PULLDOWN << PHY_PAD_WEAKPULL_SHIFT) | + (PHY_PAD_TXSLEW_CTRL_P_VALUE << PHY_PAD_TXSLEW_CTRL_P_SHIFT) | + (PHY_PAD_TXSLEW_CTRL_N_VALUE << PHY_PAD_TXSLEW_CTRL_N_SHIFT); + sdhci_writew(host, val, PHY_STBPAD_CNFG_R); + + /* enable data strobe mode */ + sdhci_writeb(host, PHY_DLLDL_CNFG_SLV_INPSEL_VALUE << PHY_DLLDL_CNFG_SLV_INPSEL_SHIFT, + PHY_DLLDL_CNFG_R); + + /* enable phy dll */ + sdhci_writeb(host, PHY_DLL_CTRL_ENABLE, PHY_DLL_CTRL_R); +} + +static void th1520_phy_3_3v_init(struct sdhci_host *host) +{ + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); + struct dwcmshc_priv *priv = sdhci_pltfm_priv(pltfm_host); + u32 val; + + if (!(priv->flags & FLAG_PULL_UP_EN)) { + th1520_phy_3_3v_init_no_pull(host); + return; + } + + /* deassert phy reset & set tx drive strength */ + sdhci_writel(host, PHY_CNFG_RSTN_DEASSERT | + (PHY_CNFG_PAD_SP_VALUE << PHY_CNFG_PAD_SP_SHIFT) | + (PHY_CNFG_PAD_SN_VALUE << PHY_CNFG_PAD_SN_SHIFT), + PHY_CNFG_R); + + /* disable delay line */ + sdhci_writeb(host, PHY_SDCLKDL_CNFG_UPDATE_DC << PHY_SDCLKDL_CNFG_UPDATE_SHIFT, + PHY_SDCLKDL_CNFG_R); + + /* set delay line */ + sdhci_writeb(host, priv->delay_line, PHY_SDCLKDL_DC_R); + sdhci_writeb(host, PHY_DLL_CNFG2_JUMPSTEP, PHY_DLL_CNFG2_R); + + /* enable delay lane */ + val = sdhci_readb(host, PHY_SDCLKDL_CNFG_R); + val &= ~(PHY_SDCLKDL_CNFG_UPDATE_DC << PHY_SDCLKDL_CNFG_UPDATE_SHIFT); + sdhci_writeb(host, val, PHY_SDCLKDL_CNFG_R); + + /* configure phy pads */ + val = PHY_PAD_RXSEL_3V3 | (PHY_PAD_WEAKPULL_PULLUP << PHY_PAD_WEAKPULL_SHIFT) | + (PHY_PAD_TXSLEW_CTRL_P_VALUE << PHY_PAD_TXSLEW_CTRL_P_SHIFT) | + (PHY_PAD_TXSLEW_CTRL_N_VALUE << PHY_PAD_TXSLEW_CTRL_N_SHIFT); + sdhci_writew(host, val, PHY_CMDPAD_CNFG_R); + sdhci_writew(host, val, PHY_DATAPAD_CNFG_R); + sdhci_writew(host, val, PHY_RSTNPAD_CNFG_R); + + val = (PHY_PAD_TXSLEW_CTRL_P_VALUE << PHY_PAD_TXSLEW_CTRL_P_SHIFT) | + (PHY_PAD_TXSLEW_CTRL_N_VALUE << PHY_PAD_TXSLEW_CTRL_N_SHIFT); + sdhci_writew(host, val, PHY_CLKPAD_CNFG_R); + + val = PHY_PAD_RXSEL_3V3 | (PHY_PAD_WEAKPULL_PULLDOWN << PHY_PAD_WEAKPULL_SHIFT) | + (PHY_PAD_TXSLEW_CTRL_P_VALUE << PHY_PAD_TXSLEW_CTRL_P_SHIFT) | + (PHY_PAD_TXSLEW_CTRL_N_VALUE << PHY_PAD_TXSLEW_CTRL_N_SHIFT); + sdhci_writew(host, val, PHY_STBPAD_CNFG_R); +} + +static void th1520_sdhci_set_phy(struct sdhci_host *host) +{ + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); + struct dwcmshc_priv *priv = sdhci_pltfm_priv(pltfm_host); + u16 emmc_ctrl; + + /* Before power on, set PHY configs */ + if (host->mmc->caps & MMC_CAP_NONREMOVABLE) { + th1520_phy_1_8v_init(host); + emmc_ctrl = sdhci_readw(host, priv->vendor_specific_area1 + DWCMSHC_EMMC_CONTROL); + emmc_ctrl |= DWCMSHC_CARD_IS_EMMC; + sdhci_writew(host, emmc_ctrl, priv->vendor_specific_area1 + DWCMSHC_EMMC_CONTROL); + } else { + th1520_phy_3_3v_init(host); + } + + sdhci_writeb(host, (PHY_DLL_CNFG1_SLVDLY_VALUE << PHY_DLL_CNFG1_SLVDLY_SHIFT) | + PHY_DLL_CNFG1_WAITCYCLE, PHY_DLL_CNFG1_R); +} + static void dwcmshc_set_uhs_signaling(struct sdhci_host *host, unsigned int timing) { @@ -189,9 +489,30 @@ static void dwcmshc_set_uhs_signaling(struct sdhci_host *host, ctrl_2 |= DWCMSHC_CTRL_HS400; } + if (priv->flags & FLAG_IO_FIXED_1V8) + ctrl_2 |= SDHCI_CTRL_VDD_180; sdhci_writew(host, ctrl_2, SDHCI_HOST_CONTROL2); } +static void th1520_set_uhs_signaling(struct sdhci_host *host, + unsigned int timing) +{ + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); + struct dwcmshc_priv *priv = sdhci_pltfm_priv(pltfm_host); + u32 reg; + + dwcmshc_set_uhs_signaling(host, timing); + if (timing == MMC_TIMING_MMC_HS400) { + reg = sdhci_readl(host, priv->vendor_specific_area1 + DWCMSHC_EMMC_ATCTRL); + reg &= ~AT_CTRL_AT_EN; + sdhci_writel(host, reg, priv->vendor_specific_area1 + DWCMSHC_EMMC_ATCTRL); + priv->delay_line = PHY_SDCLKDL_DC_HS400; + th1520_sdhci_set_phy(host); + } else { + sdhci_writeb(host, 0, PHY_DLLDL_CNFG_R); + } +} + static void dwcmshc_hs400_enhanced_strobe(struct mmc_host *mmc, struct mmc_ios *ios) { @@ -338,6 +659,91 @@ static void rk35xx_sdhci_reset(struct sdhci_host *host, u8 mask) sdhci_reset(host, mask); } +static int th1520_execute_tuning(struct sdhci_host *host, u32 opcode) +{ + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); + struct dwcmshc_priv *priv = sdhci_pltfm_priv(pltfm_host); + u32 val = 0; + + if (host->flags & SDHCI_HS400_TUNING) + return 0; + + sdhci_writeb(host, PHY_ATDL_CNFG_INPSEL_VALUE << PHY_ATDL_CNFG_INPSEL_SHIFT, + PHY_ATDL_CNFG_R); + val = sdhci_readl(host, priv->vendor_specific_area1 + DWCMSHC_EMMC_ATCTRL); + + /* + * configure tuning settings: + * - center phase select code driven in block gap interval + * - disable reporting of framing errors + * - disable software managed tuning + * - disable user selection of sampling window edges, + * instead tuning calculated edges are used + */ + val &= ~((AT_CTRL_CI_SEL << AT_CTRL_CI_SEL_SHIFT) | + (AT_CTRL_RPT_TUNE_ERR << AT_CTRL_RPT_TUNE_ERR_SHIFT) | + (AT_CTRL_SW_TUNE_EN << AT_CTRL_SW_TUNE_EN_SHIFT) | + (AT_CTRL_WIN_EDGE_SEL << AT_CTRL_WIN_EDGE_SEL_SHIFT)); + + /* + * configure tuning settings: + * - enable auto-tuning + * - enable sampling window threshold + * - stop clocks during phase code change + * - set max latency in cycles between tx and rx clocks + * - set max latency in cycles to switch output phase + * - set max sampling window threshold value + */ + val |= AT_CTRL_AT_EN | (AT_CTRL_SWIN_TH_EN << AT_CTRL_SWIN_TH_EN_SHIFT) | + (AT_CTRL_TUNE_CLK_STOP_EN << AT_CTRL_TUNE_CLK_STOP_EN_SHIFT) | + (AT_CTRL_PRE_CHANGE_DLY << AT_CTRL_PRE_CHANGE_DLY_SHIFT) | + (AT_CTRL_POST_CHANGE_DLY << AT_CTRL_POST_CHANGE_DLY_SHIFT) | + (AT_CTRL_SWIN_TH_VAL << AT_CTRL_SWIN_TH_VAL_SHIFT); + + sdhci_writel(host, val, priv->vendor_specific_area1 + DWCMSHC_EMMC_ATCTRL); + val = sdhci_readl(host, priv->vendor_specific_area1 + DWCMSHC_EMMC_ATCTRL); + + /* check if is possible to enable auto-tuning */ + if (!(val & AT_CTRL_AT_EN)) { + dev_err(mmc_dev(host->mmc), "failed to enable auto tuning\n"); + return -EIO; + } + + /* disable auto tuning */ + val &= ~AT_CTRL_AT_EN; + sdhci_writel(host, val, priv->vendor_specific_area1 + DWCMSHC_EMMC_ATCTRL); + + /* perform tuning */ + sdhci_start_tuning(host); + host->tuning_err = __sdhci_execute_tuning(host, opcode); + if (host->tuning_err) { + val &= ~AT_CTRL_AT_EN; + sdhci_writel(host, val, priv->vendor_specific_area1 + DWCMSHC_EMMC_ATCTRL); + dev_err(mmc_dev(host->mmc), "tuning failed: %d\n", host->tuning_err); + return -EIO; + } + sdhci_end_tuning(host); + + return 0; +} + +static void th1520_sdhci_reset(struct sdhci_host *host, u8 mask) +{ + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); + struct dwcmshc_priv *priv = sdhci_pltfm_priv(pltfm_host); + u16 ctrl_2; + + sdhci_reset(host, mask); + + if (priv->flags & FLAG_IO_FIXED_1V8) { + ctrl_2 = sdhci_readw(host, SDHCI_HOST_CONTROL2); + if (!(ctrl_2 & SDHCI_CTRL_VDD_180)) { + ctrl_2 |= SDHCI_CTRL_VDD_180; + sdhci_writew(host, ctrl_2, SDHCI_HOST_CONTROL2); + } + } +} + static const struct sdhci_ops sdhci_dwcmshc_ops = { .set_clock = sdhci_set_clock, .set_bus_width = sdhci_set_bus_width, @@ -356,6 +762,17 @@ static const struct sdhci_ops sdhci_dwcmshc_rk35xx_ops = { .adma_write_desc = dwcmshc_adma_write_desc, }; +static const struct sdhci_ops sdhci_dwcmshc_th1520_ops = { + .set_clock = sdhci_set_clock, + .set_bus_width = sdhci_set_bus_width, + .set_uhs_signaling = th1520_set_uhs_signaling, + .get_max_clock = dwcmshc_get_max_clock, + .reset = th1520_sdhci_reset, + .adma_write_desc = dwcmshc_adma_write_desc, + .voltage_switch = th1520_phy_1_8v_init, + .platform_execute_tuning = &th1520_execute_tuning, +}; + static const struct sdhci_pltfm_data sdhci_dwcmshc_pdata = { .ops = &sdhci_dwcmshc_ops, .quirks = SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN, @@ -379,6 +796,12 @@ static const struct sdhci_pltfm_data sdhci_dwcmshc_rk35xx_pdata = { SDHCI_QUIRK2_CLOCK_DIV_ZERO_BROKEN, }; +static const struct sdhci_pltfm_data sdhci_dwcmshc_th1520_pdata = { + .ops = &sdhci_dwcmshc_th1520_ops, + .quirks = SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN, + .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN, +}; + static int dwcmshc_rk35xx_init(struct sdhci_host *host, struct dwcmshc_priv *dwc_priv) { int err; @@ -447,6 +870,10 @@ static const struct of_device_id sdhci_dwcmshc_dt_ids[] = { .compatible = "snps,dwcmshc-sdhci", .data = &sdhci_dwcmshc_pdata, }, + { + .compatible = "thead,th1520-dwcmshc", + .data = &sdhci_dwcmshc_th1520_pdata, + }, {}, }; MODULE_DEVICE_TABLE(of, sdhci_dwcmshc_dt_ids); @@ -542,6 +969,35 @@ static int dwcmshc_probe(struct platform_device *pdev) goto err_clk; } + if (pltfm_data == &sdhci_dwcmshc_th1520_pdata) { + priv->delay_line = PHY_SDCLKDL_DC_DEFAULT; + + if (device_property_present(&pdev->dev, "thead,phy-pull-up")) + priv->flags |= FLAG_PULL_UP_EN; + else + priv->flags &= ~FLAG_PULL_UP_EN; + + if ((device_property_read_bool(dev, "mmc-ddr-1_8v")) | + (device_property_read_bool(dev, "mmc-hs200-1_8v")) | + (device_property_read_bool(dev, "mmc-hs400-1_8v"))) + priv->flags |= FLAG_IO_FIXED_1V8; + else + priv->flags &= ~FLAG_IO_FIXED_1V8; + + /* + * start_signal_voltage_switch() will try 3.3V first + * then 1.8V. Use SDHCI_SIGNALING_180 ranther than + * SDHCI_SIGNALING_330 to avoid setting voltage to 3.3V + * in sdhci_start_signal_voltage_switch(). + */ + if (priv->flags & FLAG_IO_FIXED_1V8) { + host->flags &= ~SDHCI_SIGNALING_330; + host->flags |= SDHCI_SIGNALING_180; + } + + sdhci_enable_v4_mode(host); + } + #ifdef CONFIG_ACPI if (pltfm_data == &sdhci_dwcmshc_bf3_pdata) sdhci_enable_v4_mode(host); From patchwork Fri Sep 22 01:49:51 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Drew Fustini X-Patchwork-Id: 143782 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:910f:0:b0:403:3b70:6f57 with SMTP id r15csp35036vqg; Fri, 22 Sep 2023 19:05:39 -0700 (PDT) X-Google-Smtp-Source: AGHT+IH/llVX6KoFODifHJOMlwUbP9Szx7vM3MmI9LGAIuAAWudut9Rfg0tA9GmXU2MiN7siXIjb X-Received: by 2002:a17:90a:ad82:b0:268:e5db:6e19 with SMTP id s2-20020a17090aad8200b00268e5db6e19mr1170789pjq.20.1695434739028; Fri, 22 Sep 2023 19:05:39 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1695434739; cv=none; d=google.com; s=arc-20160816; b=ai5oWShnUQVnIxqH/9Ss5b3ZQJltct5ouklLj2ocw3CBC5pVMmUlLd6mqXad2e2+bo Cc8C1x3+DT2WJIobx8kc/P+Noqyl0/tKYpjJ4mJmYNeqMRUuwxGo7yJLMXnVtmnPxS2d Ol46kbuSwGAraolubYmwOXAdJaaV2a/4IB0r3oY/LeWv9P9XTQj0pccjGGpe+DVR/Fgl YMv+iePV6kDu1Ol+NGXmGgTRWZLDLoPbWgmh98vuZ3scsM0miOVgWXUXIFF3h+v7d8bl yzTawAB46ne8nvgcdqyFodXqpJLWQPmIVWjlj3QbgJ/Wn0Hp23Pm92brdPho2pu2lWSd 16rQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:cc:to:in-reply-to:references:message-id :content-transfer-encoding:mime-version:subject:date:from :dkim-signature; bh=FhR9frpmu/yAUsLJSS2gpg1w0JSCDYrDF2EFLnkclH4=; fh=vHR8U309XOCZR8G4JUyhb/0ihb0aVduZkDFEUxYc3iE=; b=yfxRysCGoKCf7G9H5MOHalE10HP9OpcE7Nyzdc+GJOb4e3igx+GdeGQsSxbSbb/Ei0 ewGpBLgvL9vSj0KjmNWWiwBlgkC/pHJRpnq7q86zwpRYf0zgBT5HC424oza/I91Ku+OA tB7FkRlVAscP44Xf9N1GnXIKN2RsgKWCyjyVrwjhVLV1CzW17NPn5Dp/JqNxe7TIHwmx hnEjf2MSWWhz3prEhaJa+zbnhwduqhFWBOgjsaf0wkzM3uUkguFzLiB3HvrKR6VwiGfc 1yKDu2InzsE0AU45x9CPqaIuUUwwMXzNmRIlqmESEkUoFvRMIyYob4df6VfqeYVxaqR5 SfDw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@baylibre-com.20230601.gappssmtp.com header.s=20230601 header.b=rCZCHp1Y; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.37 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from snail.vger.email (snail.vger.email. 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Thu, 21 Sep 2023 18:51:11 -0700 (PDT) From: Drew Fustini Date: Thu, 21 Sep 2023 18:49:51 -0700 Subject: [PATCH 4/6] riscv: dts: thead: Add TH1520 mmc controller and sdhci clock MIME-Version: 1.0 Message-Id: <20230921-th1520-mmc-v1-4-49f76c274fb3@baylibre.com> References: <20230921-th1520-mmc-v1-0-49f76c274fb3@baylibre.com> In-Reply-To: <20230921-th1520-mmc-v1-0-49f76c274fb3@baylibre.com> To: Ulf Hansson , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jisheng Zhang , Adrian Hunter , Guo Ren , Fu Wei , Paul Walmsley , Palmer Dabbelt , Albert Ou , Conor Dooley Cc: Robert Nelson , Jason Kridner , Xi Ruoyao , Han Gao , Icenowy Zheng , linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Drew Fustini X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1695347467; l=1256; i=dfustini@baylibre.com; s=20230430; h=from:subject:message-id; bh=BOuTsoiS4wD+cP61c2nYQjChDl2neNVnlaTjhPPnjNo=; b=828BIUxxnWEqAhThpR3UsYUCLsNEjUrqd+nJV6aT2PNkFMKfXThBLTjniRlEi27zEM9N2HE7i 2TD3Ch0KrQ3BZYG48TuKVeR9eYlfwYG7F8m+g8psY+m2UCtMFgl1xpF X-Developer-Key: i=dfustini@baylibre.com; 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Signed-off-by: Drew Fustini --- arch/riscv/boot/dts/thead/th1520.dtsi | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/arch/riscv/boot/dts/thead/th1520.dtsi b/arch/riscv/boot/dts/thead/th1520.dtsi index ff364709a6df..ee0711352790 100644 --- a/arch/riscv/boot/dts/thead/th1520.dtsi +++ b/arch/riscv/boot/dts/thead/th1520.dtsi @@ -134,6 +134,13 @@ uart_sclk: uart-sclk-clock { #clock-cells = <0>; }; + sdhci_clk: sdhci-clock { + compatible = "fixed-clock"; + clock-frequency = <198000000>; + clock-output-names = "sdhci_clk"; + #clock-cells = <0>; + }; + soc { compatible = "simple-bus"; interrupt-parent = <&plic>; @@ -292,6 +299,14 @@ dmac0: dma-controller@ffefc00000 { status = "disabled"; }; + mmc0: mmc@ffe7080000 { + compatible = "thead,th1520-dwcmshc"; + reg = <0xff 0xe7080000 0x0 0x10000>; + interrupts = <62 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&sdhci_clk>; + clock-names = "core"; + }; + timer0: timer@ffefc32000 { compatible = "snps,dw-apb-timer"; reg = <0xff 0xefc32000 0x0 0x14>; From patchwork Fri Sep 22 01:49:52 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Drew Fustini X-Patchwork-Id: 143478 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:612c:172:b0:3f2:4152:657d with SMTP id h50csp5625729vqi; Fri, 22 Sep 2023 07:36:38 -0700 (PDT) X-Google-Smtp-Source: AGHT+IG793wrOsI9lkzf0XXygfhUvX1LgpelscrUQ5ZDR1oLbqmBL2LzgAtUYJn3B7hH5mJvWao/ X-Received: by 2002:a17:903:22d0:b0:1c3:eaa0:dc5 with SMTP id y16-20020a17090322d000b001c3eaa00dc5mr9316439plg.26.1695393397913; Fri, 22 Sep 2023 07:36:37 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1695393397; cv=none; d=google.com; s=arc-20160816; b=FGwJSNSkhT/vFB0suEhzeW7iY2gIZ4HdyntZ6SqfiwF5uPGdqRBE4mA6KbFJa+lfr7 rybxwNSPJQI6UQyHgKI0DOMLOV7+eg3/MyFUlKZloztLg41EWHdENCGA8NLpr+kjxcU1 CW/qY9cgUUfappknFmTCDywB8tB8YuL+WuhrPFdv4FCGk3jBbP2KATshg9QmitXWm1Qo niK+Fk5lZTo63m0qbqVCcJ+76M2yfkyopKoUYhf+yuDlMhOHB4FpsibFC/ERpphLr3j1 dW4FbQO6ZwUQ9uM9+DWGP0BqnoWCwmMXeNUx2MZImYHVvGXr24Vvu8ePHxwCnphJI7zr wkxQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:cc:to:in-reply-to:references:message-id :content-transfer-encoding:mime-version:subject:date:from :dkim-signature; bh=iPEbvkuSlI+waNlJffRe2ktpor2JpDqdyWj2rz7p8Wk=; fh=vHR8U309XOCZR8G4JUyhb/0ihb0aVduZkDFEUxYc3iE=; b=jt+UEubSVAChDk74WC1cTAHGzIfE8ZIbDgr8ZmD4dEv9xNrzr7p9UUj2J9Laum5Pey K4gMGso6SXh6i2npfrlEdEeZ8cN/d/ZZdtzxTxq5vHFZwHzSvDQoYIbAVA8P3114Xo1R 77cV2Y8wI162F7BLB8DAT2ccNSYj8uqe0LpNjXqtplbnM3tXtb4RDO2uXTNnaPBXtjzr +FnDch61Gz/QiCkiRMXPwHIvkeJjZANBBYoOX2/GW9cDnHmZOhXCaaUVYMQuh3GWOMD+ xtKskcjHEPio8TVYiQPridlQzgaDvYGVd6JyrInKusY6fn4hfXiRC+/KglwTFKEjuizZ blsg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@baylibre-com.20230601.gappssmtp.com header.s=20230601 header.b=Vtrg0dS1; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.37 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from snail.vger.email (snail.vger.email. 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Thu, 21 Sep 2023 18:51:12 -0700 (PDT) From: Drew Fustini Date: Thu, 21 Sep 2023 18:49:52 -0700 Subject: [PATCH 5/6] riscv: dts: thead: Enable BeagleV Ahead eMMC controller MIME-Version: 1.0 Message-Id: <20230921-th1520-mmc-v1-5-49f76c274fb3@baylibre.com> References: <20230921-th1520-mmc-v1-0-49f76c274fb3@baylibre.com> In-Reply-To: <20230921-th1520-mmc-v1-0-49f76c274fb3@baylibre.com> To: Ulf Hansson , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jisheng Zhang , Adrian Hunter , Guo Ren , Fu Wei , Paul Walmsley , Palmer Dabbelt , Albert Ou , Conor Dooley Cc: Robert Nelson , Jason Kridner , Xi Ruoyao , Han Gao , Icenowy Zheng , linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Drew Fustini X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1695347467; l=956; i=dfustini@baylibre.com; s=20230430; h=from:subject:message-id; bh=e7hYW7QNhal0RaNuGY3AGvE/4Ei4UdLG9Fj7V3U8VKw=; b=IYvBWMTKLnO4eGhXZDaLu7J6cKyV/rnBRhIPRir14soBubLYnpWwdB1YUX5SiQQsnHUuOHFn8 opoUzD3CmAzChvQqTcQdMtI/oVbApUhunFrq/jQQ+eMCvA40mghGlE8 X-Developer-Key: i=dfustini@baylibre.com; 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Signed-off-by: Drew Fustini --- arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts b/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts index 70e8042c8304..dde645789b7e 100644 --- a/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts +++ b/arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dts @@ -52,6 +52,10 @@ &uart_sclk { clock-frequency = <100000000>; }; +&sdhci_clk { + clock-frequency = <198000000>; +}; + &dmac0 { status = "okay"; }; @@ -59,3 +63,14 @@ &dmac0 { &uart0 { status = "okay"; }; + +&mmc0 { + bus-width = <8>; + max-frequency = <198000000>; + mmc-hs400-1_8v; + non-removable; + no-sdio; + no-sd; + thead,phy-pull-up; + status = "okay"; +}; From patchwork Fri Sep 22 01:49:53 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Drew Fustini X-Patchwork-Id: 143214 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:612c:172:b0:3f2:4152:657d with SMTP id h50csp5365302vqi; Thu, 21 Sep 2023 23:44:59 -0700 (PDT) X-Google-Smtp-Source: AGHT+IF5f7XKI9iPAiZMm3eevgwyWv1llAe4oZExVkfUfIXKViqY4rM4jgiBkiETwB4WkRoupiEl X-Received: by 2002:a05:6870:e313:b0:1bb:724f:2bca with SMTP id z19-20020a056870e31300b001bb724f2bcamr8093316oad.1.1695365099704; Thu, 21 Sep 2023 23:44:59 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1695365099; cv=none; d=google.com; s=arc-20160816; b=Ox/WXmu/F0fFozlv/i2lPoCiWLDEIaGrVbYgCRM4HH5E+5uX1ynrpOV0WgH0Ycnwq0 BmoluOULKgiPn3j+IVgWxXAmLpT8e7Zpx1BRfO4Ez205QGQoBDjfyXwQZKpC9aWWaCZX ctYvCirgdTjC3d5Ljys855abSkmcObCjrlarTmiJUjrPRA9UF21cRQKPDFlPQNyu8he8 DxnAwZGfZ5DwKoE8Glhh3Aulj22qhDcbb/3k3zah2DA6QA1cIBXpiN3pCgMAP1mzrbhI x8KemAlxwnNR+xUO5nseHYIZ/BiYcMDP9BBtbJXrf2urmp/n41J2FQAX+emhYHwKIqVi tQcQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:cc:to:in-reply-to:references:message-id :content-transfer-encoding:mime-version:subject:date:from :dkim-signature; bh=cDyDoj9zqW3tb6f+dTciYYHXjkgtjjsfpMWk3ptqz4Y=; fh=vHR8U309XOCZR8G4JUyhb/0ihb0aVduZkDFEUxYc3iE=; b=EzlEb3591x6D31yTnmaoVsUMjXMGXq6SGs05EpHdoLCDom976PNmF0G9xxhZCzU5aS uFqBmUGXONzjo0peLlyAYIyKOuQ8rhcz9sPL9VIYy9LS3dP5zZ5qZr1Vz9YSNyP21f0J NaHHr4sDC0g9WNCV5n1KiNH92cjIaaEAfx2T13i3g9QBYP1lPOVAAdZnXssAjVb9AsSN BdZVv+qYdCn6KEpykBXo0tNQ9jxara69lJ8ISEOjGgXoyrQFc0uaDUxTPRio/48uE5Dy b9SUPltphNtmervFtC6EQB8NHoeEvIdSL02lZ458tnCRxtdV5AJFbYOSseoVDpLQSrDx rg9w== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@baylibre-com.20230601.gappssmtp.com header.s=20230601 header.b="B86e/X7a"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.37 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from snail.vger.email (snail.vger.email. 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Thu, 21 Sep 2023 18:51:14 -0700 (PDT) From: Drew Fustini Date: Thu, 21 Sep 2023 18:49:53 -0700 Subject: [PATCH 6/6] riscv: dts: thead: Enable LicheePi 4A eMMC controller MIME-Version: 1.0 Message-Id: <20230921-th1520-mmc-v1-6-49f76c274fb3@baylibre.com> References: <20230921-th1520-mmc-v1-0-49f76c274fb3@baylibre.com> In-Reply-To: <20230921-th1520-mmc-v1-0-49f76c274fb3@baylibre.com> To: Ulf Hansson , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jisheng Zhang , Adrian Hunter , Guo Ren , Fu Wei , Paul Walmsley , Palmer Dabbelt , Albert Ou , Conor Dooley Cc: Robert Nelson , Jason Kridner , Xi Ruoyao , Han Gao , Icenowy Zheng , linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Drew Fustini X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1695347467; l=995; i=dfustini@baylibre.com; s=20230430; h=from:subject:message-id; bh=NVR/jz5zFITHdlX9LFGuP143Lx0/07lnI+f1VmxUhWc=; b=raxv8sdLi3NXEnuRTMoKuMBfYJblfB31JVKLCA7ZyLEQDTMFK0QMg4FBDAS1/RE2PwM8GeM9g 37Bq/mEBjXzC14O3M2KIDYrOlsISgPYO/PybYfDJ47mNjxkGGIw5rgl X-Developer-Key: i=dfustini@baylibre.com; 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Signed-off-by: Drew Fustini --- arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi b/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi index a802ab110429..3de8ae0a4384 100644 --- a/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi +++ b/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi @@ -29,6 +29,10 @@ &apb_clk { clock-frequency = <62500000>; }; +&sdhci_clk { + clock-frequency = <198000000>; +}; + &uart_sclk { clock-frequency = <100000000>; }; @@ -36,3 +40,14 @@ &uart_sclk { &dmac0 { status = "okay"; }; + +&mmc0 { + bus-width = <8>; + max-frequency = <198000000>; + mmc-hs400-1_8v; + non-removable; + no-sdio; + no-sd; + thead,phy-pull-up; + status = "okay"; +};