From patchwork Sun Jun 23 03:32:36 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Golle X-Patchwork-Id: 13708475 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 45875C27C4F for ; Sun, 23 Jun 2024 03:33:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:To:From:Date:Reply-To:Cc: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=X3KhBPJs/6fMg7oWjQtZLxTVxyRhvFL1U0dJOwdjuNc=; b=f9zR5rbx7PmxtaWx3wyJawyI72 RCr4FBtc1z/RvKq0YmpPPnYPxNIc3z2rj+JWz+rn9UjPUmaIBFbIbxh/hjgQU1ZN2muD8Nea+sdtJ FavxB2cD6yKLh5Sdl6kIVs8uCeyJjPIzp3zoChes3ixHbsv+qdYKjKMuX6yFWHIaPhny+C6DZFLJB A4HeZGio9tXbdRqJCYVbZx2c0sWwN48FefMj1aHeVSzXij0he6yjymhlhRu23B6yl1vNXr5okDiP3 vnEoTUzeR5QGXsJ93PZugtSUA/XWo+yzYg2Evmrhyi8AFb/LP1A6MEcsJU989s188f0+ttwHI+WPd ExzRJk3A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sLDyR-0000000DG3s-24hp; Sun, 23 Jun 2024 03:33:03 +0000 Received: from pidgin.makrotopia.org ([2a07:2ec0:3002::65]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sLDyG-0000000DG0k-205P; Sun, 23 Jun 2024 03:32:53 +0000 Received: from local by pidgin.makrotopia.org with esmtpsa (TLS1.3:TLS_AES_256_GCM_SHA384:256) (Exim 4.97.1) (envelope-from ) id 1sLDy4-000000006bc-1f7o; Sun, 23 Jun 2024 03:32:40 +0000 Date: Sun, 23 Jun 2024 04:32:36 +0100 From: Daniel Golle To: Daniel Golle , Aurelien Jarno , Olivia Mackall , Herbert Xu , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiko Stuebner , Philipp Zabel , Uwe =?iso-8859-1?q?Kleine-K=F6nig?= , Sebastian Reichel , Sascha Hauer , Dragan Simic , Martin Kaiser , Ard Biesheuvel , linux-crypto@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 1/3] dt-bindings: rng: Add Rockchip RNG bindings Message-ID: References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240622_203252_549131_71732B2C X-CRM114-Status: GOOD ( 14.02 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Aurelien Jarno Add the True Random Number Generator on the Rockchip RK3568 SoC. Signed-off-by: Aurelien Jarno Signed-off-by: Daniel Golle --- .../bindings/rng/rockchip,rk3568-rng.yaml | 61 +++++++++++++++++++ MAINTAINERS | 6 ++ 2 files changed, 67 insertions(+) create mode 100644 Documentation/devicetree/bindings/rng/rockchip,rk3568-rng.yaml diff --git a/Documentation/devicetree/bindings/rng/rockchip,rk3568-rng.yaml b/Documentation/devicetree/bindings/rng/rockchip,rk3568-rng.yaml new file mode 100644 index 000000000000..ad3648b96f82 --- /dev/null +++ b/Documentation/devicetree/bindings/rng/rockchip,rk3568-rng.yaml @@ -0,0 +1,61 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/rng/rockchip,rk3568-rng.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Rockchip TRNG + +description: True Random Number Generator on Rockchip RK3568 SoC + +maintainers: + - Aurelien Jarno + - Daniel Golle + +properties: + compatible: + enum: + - rockchip,rk3568-rng + + reg: + maxItems: 1 + + clocks: + items: + - description: TRNG clock + - description: TRNG AHB clock + + clock-names: + items: + - const: core + - const: ahb + + resets: + maxItems: 1 + +required: + - compatible + - reg + - clocks + - clock-names + - resets + +additionalProperties: false + +examples: + - | + #include + bus { + #address-cells = <2>; + #size-cells = <2>; + + rng@fe388000 { + compatible = "rockchip,rk3568-rng"; + reg = <0x0 0xfe388000 0x0 0x4000>; + clocks = <&cru CLK_TRNG_NS>, <&cru HCLK_TRNG_NS>; + clock-names = "core", "ahb"; + resets = <&cru SRST_TRNG_NS>; + }; + }; + +... diff --git a/MAINTAINERS b/MAINTAINERS index 807feae089c4..5cd3bc2b034f 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -19498,6 +19498,12 @@ F: Documentation/userspace-api/media/v4l/metafmt-rkisp1.rst F: drivers/media/platform/rockchip/rkisp1 F: include/uapi/linux/rkisp1-config.h +ROCKCHIP RANDOM NUMBER GENERATOR SUPPORT +M: Daniel Golle +M: Aurelien Jarno +S: Maintained +F: Documentation/devicetree/bindings/rng/rockchip,rk3568-rng.yaml + ROCKCHIP RASTER 2D GRAPHIC ACCELERATION UNIT DRIVER M: Jacob Chen M: Ezequiel Garcia From patchwork Sun Jun 23 03:33:04 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Golle X-Patchwork-Id: 13708476 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 875C8C2BA18 for ; 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Sun, 23 Jun 2024 03:33:26 +0000 Received: from pidgin.makrotopia.org ([2a07:2ec0:3002::65]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sLDyi-0000000DGBd-3jo8; Sun, 23 Jun 2024 03:33:22 +0000 Received: from local by pidgin.makrotopia.org with esmtpsa (TLS1.3:TLS_AES_256_GCM_SHA384:256) (Exim 4.97.1) (envelope-from ) id 1sLDyV-000000006c6-3e26; Sun, 23 Jun 2024 03:33:07 +0000 Date: Sun, 23 Jun 2024 04:33:04 +0100 From: Daniel Golle To: Daniel Golle , Aurelien Jarno , Olivia Mackall , Herbert Xu , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiko Stuebner , Philipp Zabel , Uwe =?iso-8859-1?q?Kleine-K=F6nig?= , Sebastian Reichel , Sascha Hauer , Dragan Simic , Martin Kaiser , Ard Biesheuvel , linux-crypto@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 2/3] hwrng: add Rockchip SoC hwrng driver Message-ID: <240db6e0ab07e8e2a86da99b0fc085eabaf9f0cc.1719106472.git.daniel@makrotopia.org> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240622_203321_212105_D8DF00F4 X-CRM114-Status: GOOD ( 30.75 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Aurelien Jarno Rockchip SoCs used to have a random number generator as part of their crypto device, and support for it has to be added to the corresponding driver. However newer Rockchip SoCs like the RK356x have an independent True Random Number Generator device. This patch adds a driver for it, greatly inspired from the downstream driver. The TRNG device does not seem to have a signal conditionner and the FIPS 140-2 test returns a lot of failures. They can be reduced by increasing RK_RNG_SAMPLE_CNT, in a tradeoff between quality and speed. This value has been adjusted to get ~90% of successes and the quality value has been set accordingly. Signed-off-by: Aurelien Jarno [daniel@makrotpia.org: code style fixes] Signed-off-by: Daniel Golle --- MAINTAINERS | 1 + drivers/char/hw_random/Kconfig | 14 ++ drivers/char/hw_random/Makefile | 1 + drivers/char/hw_random/rockchip-rng.c | 222 ++++++++++++++++++++++++++ 4 files changed, 238 insertions(+) create mode 100644 drivers/char/hw_random/rockchip-rng.c diff --git a/MAINTAINERS b/MAINTAINERS index 5cd3bc2b034f..580536b72d25 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -19503,6 +19503,7 @@ M: Daniel Golle M: Aurelien Jarno S: Maintained F: Documentation/devicetree/bindings/rng/rockchip,rk3568-rng.yaml +F: drivers/char/hw_random/rockchip-rng.c ROCKCHIP RASTER 2D GRAPHIC ACCELERATION UNIT DRIVER M: Jacob Chen diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig index 442c40efb200..2b62cd08f91a 100644 --- a/drivers/char/hw_random/Kconfig +++ b/drivers/char/hw_random/Kconfig @@ -573,6 +573,20 @@ config HW_RANDOM_JH7110 To compile this driver as a module, choose M here. The module will be called jh7110-trng. +config HW_RANDOM_ROCKCHIP + tristate "Rockchip True Random Number Generator" + depends on HW_RANDOM && (ARCH_ROCKCHIP || COMPILE_TEST) + depends on HAS_IOMEM + default HW_RANDOM + help + This driver provides kernel-side support for the True Random Number + Generator hardware found on some Rockchip SoC like RK3566 or RK3568. + + To compile this driver as a module, choose M here: the + module will be called rockchip-rng. + + If unsure, say Y. + endif # HW_RANDOM config UML_RANDOM diff --git a/drivers/char/hw_random/Makefile b/drivers/char/hw_random/Makefile index 32549a1186dc..01f012eab440 100644 --- a/drivers/char/hw_random/Makefile +++ b/drivers/char/hw_random/Makefile @@ -48,4 +48,5 @@ obj-$(CONFIG_HW_RANDOM_XIPHERA) += xiphera-trng.o obj-$(CONFIG_HW_RANDOM_ARM_SMCCC_TRNG) += arm_smccc_trng.o obj-$(CONFIG_HW_RANDOM_CN10K) += cn10k-rng.o obj-$(CONFIG_HW_RANDOM_POLARFIRE_SOC) += mpfs-rng.o +obj-$(CONFIG_HW_RANDOM_ROCKCHIP) += rockchip-rng.o obj-$(CONFIG_HW_RANDOM_JH7110) += jh7110-trng.o diff --git a/drivers/char/hw_random/rockchip-rng.c b/drivers/char/hw_random/rockchip-rng.c new file mode 100644 index 000000000000..714d177ac45e --- /dev/null +++ b/drivers/char/hw_random/rockchip-rng.c @@ -0,0 +1,222 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * rockchip-rng.c True Random Number Generator driver for Rockchip SoCs + * + * Copyright (c) 2018, Fuzhou Rockchip Electronics Co., Ltd. + * Copyright (c) 2022, Aurelien Jarno + * Authors: + * Lin Jinhan + * Aurelien Jarno + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define RK_RNG_AUTOSUSPEND_DELAY 100 +#define RK_RNG_MAX_BYTE 32 +#define RK_RNG_POLL_PERIOD_US 100 +#define RK_RNG_POLL_TIMEOUT_US 10000 + +/* + * TRNG collects osc ring output bit every RK_RNG_SAMPLE_CNT time. The value is + * a tradeoff between speed and quality and has been adjusted to get a quality + * of ~900 (~90% of FIPS 140-2 successes). + */ +#define RK_RNG_SAMPLE_CNT 1000 + +/* TRNG registers from RK3568 TRM-Part2, section 5.4.1 */ +#define TRNG_RST_CTL 0x0004 +#define TRNG_RNG_CTL 0x0400 +#define TRNG_RNG_CTL_LEN_64_BIT (0x00 << 4) +#define TRNG_RNG_CTL_LEN_128_BIT (0x01 << 4) +#define TRNG_RNG_CTL_LEN_192_BIT (0x02 << 4) +#define TRNG_RNG_CTL_LEN_256_BIT (0x03 << 4) +#define TRNG_RNG_CTL_OSC_RING_SPEED_0 (0x00 << 2) +#define TRNG_RNG_CTL_OSC_RING_SPEED_1 (0x01 << 2) +#define TRNG_RNG_CTL_OSC_RING_SPEED_2 (0x02 << 2) +#define TRNG_RNG_CTL_OSC_RING_SPEED_3 (0x03 << 2) +#define TRNG_RNG_CTL_ENABLE BIT(1) +#define TRNG_RNG_CTL_START BIT(0) +#define TRNG_RNG_SAMPLE_CNT 0x0404 +#define TRNG_RNG_DOUT 0x0410 + +struct rk_rng { + struct hwrng rng; + void __iomem *base; + struct reset_control *rst; + int clk_num; + struct clk_bulk_data *clk_bulks; +}; + +static int rk_rng_init(struct hwrng *rng) +{ + struct rk_rng *rk_rng = container_of(rng, struct rk_rng, rng); + int ret; + + /* start clocks */ + ret = clk_bulk_prepare_enable(rk_rng->clk_num, rk_rng->clk_bulks); + if (ret < 0) { + dev_err((struct device *) rk_rng->rng.priv, + "Failed to enable clks %d\n", ret); + return ret; + } + + /* set the sample period */ + writel(RK_RNG_SAMPLE_CNT, rk_rng->base + TRNG_RNG_SAMPLE_CNT); + + /* set osc ring speed and enable it */ + writel(TRNG_RNG_CTL_LEN_256_BIT | + TRNG_RNG_CTL_OSC_RING_SPEED_0 | + TRNG_RNG_CTL_ENABLE, + rk_rng->base + TRNG_RNG_CTL); + + return 0; +} + +static void rk_rng_cleanup(struct hwrng *rng) +{ + struct rk_rng *rk_rng = container_of(rng, struct rk_rng, rng); + + /* stop TRNG */ + writel(0, rk_rng->base + TRNG_RNG_CTL); + + /* stop clocks */ + clk_bulk_disable_unprepare(rk_rng->clk_num, rk_rng->clk_bulks); +} + +static int rk_rng_read(struct hwrng *rng, void *buf, size_t max, bool wait) +{ + struct rk_rng *rk_rng = container_of(rng, struct rk_rng, rng); + size_t to_read = min_t(size_t, max, RK_RNG_MAX_BYTE); + u32 reg; + int ret = 0; + + ret = pm_runtime_resume_and_get((struct device *) rk_rng->rng.priv); + if (ret < 0) + return ret; + + /* Start collecting random data */ + writel(TRNG_RNG_CTL_START, rk_rng->base + TRNG_RNG_CTL); + + ret = readl_poll_timeout(rk_rng->base + TRNG_RNG_CTL, reg, + !(reg & TRNG_RNG_CTL_START), + RK_RNG_POLL_PERIOD_US, + RK_RNG_POLL_TIMEOUT_US); + if (ret < 0) + goto out; + + /* Read random data stored in the registers */ + memcpy_fromio(buf, rk_rng->base + TRNG_RNG_DOUT, to_read); +out: + pm_runtime_mark_last_busy((struct device *) rk_rng->rng.priv); + pm_runtime_put_sync_autosuspend((struct device *) rk_rng->rng.priv); + + return (ret < 0) ? ret : to_read; +} + +static int rk_rng_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct rk_rng *rk_rng; + int ret; + + rk_rng = devm_kzalloc(dev, sizeof(*rk_rng), GFP_KERNEL); + if (!rk_rng) + return -ENOMEM; + + rk_rng->base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(rk_rng->base)) + return PTR_ERR(rk_rng->base); + + rk_rng->clk_num = devm_clk_bulk_get_all(dev, &rk_rng->clk_bulks); + if (rk_rng->clk_num < 0) + return dev_err_probe(dev, rk_rng->clk_num, + "Failed to get clks property\n"); + + rk_rng->rst = devm_reset_control_array_get_exclusive(&pdev->dev); + if (IS_ERR(rk_rng->rst)) + return dev_err_probe(dev, PTR_ERR(rk_rng->rst), + "Failed to get reset property\n"); + + reset_control_assert(rk_rng->rst); + udelay(2); + reset_control_deassert(rk_rng->rst); + + platform_set_drvdata(pdev, rk_rng); + + rk_rng->rng.name = dev_driver_string(dev); +#ifndef CONFIG_PM + rk_rng->rng.init = rk_rng_init; + rk_rng->rng.cleanup = rk_rng_cleanup; +#endif + rk_rng->rng.read = rk_rng_read; + rk_rng->rng.priv = (unsigned long) dev; + rk_rng->rng.quality = 900; + + pm_runtime_set_autosuspend_delay(dev, RK_RNG_AUTOSUSPEND_DELAY); + pm_runtime_use_autosuspend(dev); + devm_pm_runtime_enable(dev); + + ret = devm_hwrng_register(dev, &rk_rng->rng); + if (ret) + return dev_err_probe(&pdev->dev, ret, "Failed to register Rockchip hwrng\n"); + + dev_dbg(&pdev->dev, "Registered Rockchip hwrng\n"); + + return 0; +} + +#ifdef CONFIG_PM +static int rk_rng_runtime_suspend(struct device *dev) +{ + struct rk_rng *rk_rng = dev_get_drvdata(dev); + + rk_rng_cleanup(&rk_rng->rng); + + return 0; +} + +static int rk_rng_runtime_resume(struct device *dev) +{ + struct rk_rng *rk_rng = dev_get_drvdata(dev); + + return rk_rng_init(&rk_rng->rng); +} +#endif + +static const struct dev_pm_ops rk_rng_pm_ops = { + SET_RUNTIME_PM_OPS(rk_rng_runtime_suspend, + rk_rng_runtime_resume, NULL) + SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, + pm_runtime_force_resume) +}; + +static const struct of_device_id rk_rng_dt_match[] = { + { .compatible = "rockchip,rk3568-rng", }, + { /* sentinel */ }, +}; + +MODULE_DEVICE_TABLE(of, rk_rng_dt_match); + +static struct platform_driver rk_rng_driver = { + .driver = { + .name = "rockchip-rng", + .pm = &rk_rng_pm_ops, + .of_match_table = rk_rng_dt_match, + }, + .probe = rk_rng_probe, +}; + +module_platform_driver(rk_rng_driver); + +MODULE_DESCRIPTION("Rockchip True Random Number Generator driver"); +MODULE_AUTHOR("Lin Jinhan , Aurelien Jarno "); +MODULE_LICENSE("GPL"); From patchwork Sun Jun 23 03:33:13 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Golle X-Patchwork-Id: 13708477 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5A4F4C27C4F for ; Sun, 23 Jun 2024 03:33:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:To:From:Date:Reply-To:Cc: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=/8YTytn3Lpvhh1fXc74442btUcb4FVTViVuu3hva/2M=; b=jAYLVXlxyvlmYyTmMFkpOralTs 45K7RUUm4qXfM72IgwRrMAoTBPmqEVyi0SmmVsYMZf72VhsOcOAf/X8pA05CcDTPVavBDIq/DxeFe lOWTKzJTYJC21Z0S05YiX0UnIn033eu5c989JOuMGLoEEclAWKnmwOnVCsHMT3tBf1Seqcgj5WBs2 KIJi86sztZ7Db9BOp5eCNhrA5zrm8p433RyMM3ahxqWBI/RX+cV6Pz2OidT0KgNr3o8gWtCjvmIfp y0pSjEwVl3c6VO5W4pEyln53j6eWVxNZCiEiBM+XvCKrD7FJoqP7WOtUjyolle6KsBgBKG3V7tpiL Ga7Fi7Bg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sLDz0-0000000DGKJ-0rxo; Sun, 23 Jun 2024 03:33:38 +0000 Received: from pidgin.makrotopia.org ([2a07:2ec0:3002::65]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sLDyp-0000000DGDp-2wL8; Sun, 23 Jun 2024 03:33:29 +0000 Received: from local by pidgin.makrotopia.org with esmtpsa (TLS1.3:TLS_AES_256_GCM_SHA384:256) (Exim 4.97.1) (envelope-from ) id 1sLDyf-000000006cH-0m9y; Sun, 23 Jun 2024 03:33:17 +0000 Date: Sun, 23 Jun 2024 04:33:13 +0100 From: Daniel Golle To: Daniel Golle , Aurelien Jarno , Olivia Mackall , Herbert Xu , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiko Stuebner , Philipp Zabel , Uwe =?iso-8859-1?q?Kleine-K=F6nig?= , Sebastian Reichel , Sascha Hauer , Dragan Simic , Martin Kaiser , Ard Biesheuvel , linux-crypto@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 3/3] arm64: dts: rockchip: add DT entry for RNG to RK356x Message-ID: References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240622_203327_809922_6ADE7F06 X-CRM114-Status: GOOD ( 10.32 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Aurelien Jarno Enable the just added Rockchip RNG driver for RK356x SoCs. Signed-off-by: Aurelien Jarno Signed-off-by: Daniel Golle --- arch/arm64/boot/dts/rockchip/rk356x.dtsi | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk356x.dtsi b/arch/arm64/boot/dts/rockchip/rk356x.dtsi index d8543b5557ee..d43d59b44ea5 100644 --- a/arch/arm64/boot/dts/rockchip/rk356x.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk356x.dtsi @@ -1112,6 +1112,15 @@ sdhci: mmc@fe310000 { status = "disabled"; }; + rng: rng@fe388000 { + compatible = "rockchip,rk3568-rng"; + reg = <0x0 0xfe388000 0x0 0x4000>; + clocks = <&cru CLK_TRNG_NS>, <&cru HCLK_TRNG_NS>; + clock-names = "core", "ahb"; + resets = <&cru SRST_TRNG_NS>; + reset-names = "reset"; + }; + i2s0_8ch: i2s@fe400000 { compatible = "rockchip,rk3568-i2s-tdm"; reg = <0x0 0xfe400000 0x0 0x1000>;