From patchwork Thu Feb 13 10:58:24 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yixun Lan X-Patchwork-Id: 865440 Received: from smtp.gentoo.org (woodpecker.gentoo.org [140.211.166.183]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 77F7F213E67; Thu, 13 Feb 2025 10:59:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=140.211.166.183 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739444360; cv=none; b=NUe4ehpWPsHn75igwHiBV7Q55e6LXS/xUg+a0ZGVIBcXJ3fnY8aDGp0uauKtseYYwHLP2NsOvuOE5gxIErZVl8QWaXOneXSFllRllNGhlCHzzvZIJD8Zej4lUkVIasXWJKKv7hd8Ls6gfbJyTcco4GqDalI8ZbK9EtnPbUqlY0Y= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739444360; c=relaxed/simple; bh=egbAKOn8wm4RHq9b1iC6xWk9F3swpvX7oZ6TfTqCnRQ=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=hHkC4VtqvtFHjdaPnozR+ev3uhvWie5+akghnKr6yRe+KWAJuowwBSp7bDje5jnHWWBDMhJ/vSiz10mXb1uQ//uiH9m2Xv6yXDBr503IaF2asQ1li6gkViufTfJzV0PCKh3XpaSgg0EB60F5+blvin6ebgxNwKnUOhVsMz2u3dU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gentoo.org; spf=pass smtp.mailfrom=gentoo.org; arc=none smtp.client-ip=140.211.166.183 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gentoo.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gentoo.org Received: from [127.0.0.1] (unknown [180.172.76.141]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: dlan) by smtp.gentoo.org (Postfix) with ESMTPSA id 62467342FDD; Thu, 13 Feb 2025 10:59:15 +0000 (UTC) From: Yixun Lan Date: Thu, 13 Feb 2025 18:58:24 +0800 Subject: [PATCH RFC 1/2] dt-bindings: mmc: spacemit,sdhci: add support for K1 SoC Precedence: bulk X-Mailing-List: linux-mmc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250213-20-k1-sdhci-v1-1-1f4362a980cd@gentoo.org> References: <20250213-20-k1-sdhci-v1-0-1f4362a980cd@gentoo.org> In-Reply-To: <20250213-20-k1-sdhci-v1-0-1f4362a980cd@gentoo.org> To: Ulf Hansson , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Adrian Hunter Cc: linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, spacemit@lists.linux.dev, linux-kernel@vger.kernel.org, Yixun Lan X-Mailer: b4 0.15-dev X-Developer-Signature: v=1; a=openpgp-sha256; l=1764; i=dlan@gentoo.org; h=from:subject:message-id; bh=egbAKOn8wm4RHq9b1iC6xWk9F3swpvX7oZ6TfTqCnRQ=; b=owEBzQIy/ZANAwAKATGq6kdZTbvtAcsmYgBnrdB4AZt7G8OD8FJOGOpwPmgt1Y9hFr+BLnupP Xe1j1KdkKeJApMEAAEKAH0WIQS1urjJwxtxFWcCI9wxqupHWU277QUCZ63QeF8UgAAAAAAuAChp c3N1ZXItZnByQG5vdGF0aW9ucy5vcGVucGdwLmZpZnRoaG9yc2VtYW4ubmV0QjVCQUI4QzlDMzF CNzExNTY3MDIyM0RDMzFBQUVBNDc1OTREQkJFRAAKCRAxqupHWU277a5eD/9pV8qh7pr3c71VkM nviNR3UgrXDSTSTU3BHz794uCz7+kUDVmutQHUQsUrOLd3SZGfq5Y4uCbzLmRCnutwkJfxtd+ss fi7bgS/sklEhN5MWLMg6VKuqAObUgWJnK07JVrqpIY3yZOpmf5hjLV4/6yimNCAL8HN2WIEypOs slMsolFu+wSGt17/wCwMh84MmcDDplxYMNPsaLYVBPb5vK2HfU5Tesvza5zxgi9x059amXqE86Q anLzy2i0eSUl5bK1sbQV//puwzAkSMumOghtWxe7GvHAWXT0V41mKlCf5Ycd6fm9r3QRzUH4Bfn BEn/zTOELKqzx6hmx3MpUHvETviLbj2pyvMrGoxPwq2hVUUJ3qGfO+uNYxEYpO8WRWWrc/39NYF mE/H2zIdjR7U+9iXr9yV9uSLZ5AofJdUk3tFAIofNr1TbC4rcB22Bgmow6NQ9eg3PRVkKsxKLCu ebcUbTFvjfjyOHcchVfVlpA2qzUQtxCH9coGPOsGCLfCP4R1TIOHY10VZ1zqjv+NE+C2CUQe8eh MNadzGsuWvcIEPjLwmMPwymOZ7vA62goAPlkLEKtptL58s0t9agzuA/pQo/Tgb0L4TFdoKRuleF nAdQLyKBFBAXhXTSjtO6mQ/THk8YORjz6pRPPfI/agt0reAG7TAPhR+bb84nKWP9VZag== X-Developer-Key: i=dlan@gentoo.org; a=openpgp; fpr=50B03A1A5CBCD33576EF8CD7920C0DBCAABEFD55 Add support for the SD/eMMC Host Controller found in SpacemiT K1 SoC, The controller supports data transmission of MMC, SDIO, SD protocol. Signed-off-by: Yixun Lan Reviewed-by: Rob Herring (Arm) --- .../devicetree/bindings/mmc/spacemit,sdhci.yaml | 53 ++++++++++++++++++++++ 1 file changed, 53 insertions(+) diff --git a/Documentation/devicetree/bindings/mmc/spacemit,sdhci.yaml b/Documentation/devicetree/bindings/mmc/spacemit,sdhci.yaml new file mode 100644 index 0000000000000000000000000000000000000000..13d9382058fbc1c12be1024d1c550f04a825673c --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/spacemit,sdhci.yaml @@ -0,0 +1,53 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mmc/spacemit,sdhci.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: SpacemiT SDHCI Controller + +maintainers: + - Yixun Lan + +allOf: + - $ref: mmc-controller.yaml# + +properties: + compatible: + const: spacemit,k1-sdhci + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + items: + - description: core clock, used by internal controller + - description: io clock, output for SD, SDIO, eMMC device + + clock-names: + items: + - const: core + - const: io + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + +unevaluatedProperties: false + +examples: + - | + mmc@d4281000 { + compatible = "spacemit,k1-sdhci"; + reg = <0xd4281000 0x200>; + interrupts = <101>; + interrupt-parent = <&plic>; + clocks = <&clk_apmu 10>, <&clk_apmu 13>; + clock-names = "core", "io"; + };