From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F2B35C4743D for ; Fri, 4 Jun 2021 17:09:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CD1A36140C for ; Fri, 4 Jun 2021 17:09:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230267AbhFDRLA (ORCPT ); Fri, 4 Jun 2021 13:11:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54688 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229690AbhFDRK7 (ORCPT ); Fri, 4 Jun 2021 13:10:59 -0400 Received: from mail-ej1-x632.google.com (mail-ej1-x632.google.com [IPv6:2a00:1450:4864:20::632]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A99F7C061766 for ; Fri, 4 Jun 2021 10:08:58 -0700 (PDT) Received: by mail-ej1-x632.google.com with SMTP id jt22so15578881ejb.7 for ; Fri, 04 Jun 2021 10:08:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=OoQ9gA8dbbWK1PtB4dCFVLRMGfxxHdj7P0i/xhgg55I=; b=vTUoh8iFX3WkURlZGhaLT4GCmDnGg2CBfohcDURDFZ8JOOKfDNWxGtN+siZlEUUCg8 eOC+yekb2HorPEMH374VVAe8ep18bRtQUp/CNQxyifMSoI6iWViNQqwdCdGx7Jg8AQK6 wtPbe3nXeWZBlZ8QJcEaZJZ3gX2A+DmTCODTu441hfpIs+uExsJGdZU82cZAd5W5/Kdl oBIP0W9Ww7QN9kvGEArtmMI9iCfEwZ10cC4OrR3NOj5cD0ZakkJvuvOF24nqWrGE5bZZ cvkdYzTGfYfACjRNkw5FixPCHtUTg2GeRMUkcmjHOlCXWHDb1Wj3aJG3MCq8s5SUbgep Ukfw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=OoQ9gA8dbbWK1PtB4dCFVLRMGfxxHdj7P0i/xhgg55I=; b=mgPOKLokDZDrNcTgRkiOP6yQHy/0Xz6ByofApj+uPMggRjbpaKLNPxgx5SEPttX30O gGabQbk431xgnmdNCV1iDKCFynPLtE/sF+kubu53ws58ZdZYzpehBjUs5nGtbnrmIXEg 7J+21tM63ghp26PefsyvbNO/n6x2mfIvYvEyaad0wYTHlTRRmkQqXTEEL0nSpsjC5SAY sSAE7CD23XphOZc40RkW1Loglt/yg7u+yvAIny9U4gPG7D9nAah79nYQphSXGY7T6IwM 5kVSbHmeB221BXLPolqnoI+hwO/TSaRjKOp4roOp1WugCyfD7hKiUKghLRIwVmuKPsCH YVZA== X-Gm-Message-State: AOAM530JZk7A8BhKGOhp/VoGEqaDvNSbRUQ78y+kE/eg925YLLpiWxWg kTW65oEQL9YZwAjP2DYKnMw= X-Google-Smtp-Source: ABdhPJw7lDvO1MHuloAiRRHK/9CSD4zYB4NRxtgEq0HCbXnurenuq1Ztwl46ypeON4Bk3azBqhh8vQ== X-Received: by 2002:a17:906:6981:: with SMTP id i1mr5123333ejr.289.1622826537290; Fri, 04 Jun 2021 10:08:57 -0700 (PDT) Received: from localhost.localdomain (p200300f137127c00f22f74fffe210725.dip0.t-ipconnect.de. [2003:f1:3712:7c00:f22f:74ff:fe21:725]) by smtp.googlemail.com with ESMTPSA id q26sm3010663ejc.3.2021.06.04.10.08.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 04 Jun 2021 10:08:56 -0700 (PDT) From: Martin Blumenstingl To: linux-amlogic@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, jbrunet@baylibre.com, khilman@baylibre.com, narmstrong@baylibre.com, Martin Blumenstingl Subject: [PATCH] ARM: dts: meson: Set the fifo-size of uart_A to 128 bytes Date: Fri, 4 Jun 2021 19:08:44 +0200 Message-Id: <20210604170844.2201229-1-martin.blumenstingl@googlemail.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The first UART controller in the "Everything-Else" power domain is called uart_A. Unlike all other UARTs (which use a 64 byte fifo-size in hardware) uart_A has a fifo-size of 128 bytes. This UART controller is typically used for Bluetooth HCI. The fifo-size of 128 bytes is valid from all SoCs from Meson6 (or possibly even earlier) all the way up to the latest 64-bit ones. Signed-off-by: Martin Blumenstingl --- arch/arm/boot/dts/meson.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/meson.dtsi b/arch/arm/boot/dts/meson.dtsi index 8bae6ed0abb2..bd0e864964e9 100644 --- a/arch/arm/boot/dts/meson.dtsi +++ b/arch/arm/boot/dts/meson.dtsi @@ -50,6 +50,7 @@ uart_A: serial@84c0 { compatible = "amlogic,meson6-uart", "amlogic,meson-uart"; reg = <0x84c0 0x18>; interrupts = ; + fifo-size = <128>; status = "disabled"; }; -- 2.31.1 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.7 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_SIGNED,DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 58FCFC4743E for ; Fri, 4 Jun 2021 17:10:56 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 2552961359 for ; Fri, 4 Jun 2021 17:10:56 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2552961359 Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=googlemail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=0wUGVSvLRNN6/r7clS+kP61BsPDrkxjnInYzCmylntw=; b=Fil7mWZDFCxPt0 zFusrwFULK5SnG5GtAwokAGd3KkfTzOiw/iHccOzyX830rkWU2mMmK1cbVeecnnRGhv9Q7YOlXbb0 je5ruWMusSSiKpbkTD/8b1w72DveTgCrm9rOnnzLH5J7fNRxUj/OQa+kdEIeku8s6bODFFjo06IZZ qJxHOuPaUsIbGs3JiGpxSCvRmkPvOy9GEYyTCTU6KbYjIr3kijtJUvpArDuGqz5pNYY8SSBiSr4D5 TqzM9hTiDZ/yV9t4AXQvzisNyWQv85ivjsB365H34OQq7Np9EHxLZYgryVl2dzt2kWibudLU7oWSa 4p35RZIUK0/gjx9gTReA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1lpDJi-00EXRR-QG; Fri, 04 Jun 2021 17:09:06 +0000 Received: from mail-ej1-x62b.google.com ([2a00:1450:4864:20::62b]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1lpDJa-00EXPw-Sd; Fri, 04 Jun 2021 17:09:02 +0000 Received: by mail-ej1-x62b.google.com with SMTP id l1so15577322ejb.6; Fri, 04 Jun 2021 10:08:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=OoQ9gA8dbbWK1PtB4dCFVLRMGfxxHdj7P0i/xhgg55I=; b=vTUoh8iFX3WkURlZGhaLT4GCmDnGg2CBfohcDURDFZ8JOOKfDNWxGtN+siZlEUUCg8 eOC+yekb2HorPEMH374VVAe8ep18bRtQUp/CNQxyifMSoI6iWViNQqwdCdGx7Jg8AQK6 wtPbe3nXeWZBlZ8QJcEaZJZ3gX2A+DmTCODTu441hfpIs+uExsJGdZU82cZAd5W5/Kdl oBIP0W9Ww7QN9kvGEArtmMI9iCfEwZ10cC4OrR3NOj5cD0ZakkJvuvOF24nqWrGE5bZZ cvkdYzTGfYfACjRNkw5FixPCHtUTg2GeRMUkcmjHOlCXWHDb1Wj3aJG3MCq8s5SUbgep Ukfw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=OoQ9gA8dbbWK1PtB4dCFVLRMGfxxHdj7P0i/xhgg55I=; b=KbAi7KHux32SWGydX0Fezk/7Mm8V9vipUHPn+0mAiDtDECosY+OWoFxB0S7ij3kM48 4K54yXhs10ledFLXfBfkM+o/JkBAHfWo6wyQ3iZjnYrHCOOVNTSkv5VCElQOX+oVA0p4 Wxnp6pg3SfMn9OaY0dgYmYCWaegF6v5DpjCu0zX0YpnHSiYImch6Eh3B13AyJKAUJq5D P5sfzOQBEjWpLI9HM9+U4v6FJA9agNXTLZ2RTBVk6nzM0uhqzjiaqkW04WBHEAZXqCB2 mv1eJsxHV6kDlrecCjpaY4wy8orUrzRFD3BMq73pWKtYOimh/yNPvaTujpgd3jz6e0Rf Fs4g== X-Gm-Message-State: AOAM5313x1A7frSS7F+jku9XeKFPtSVsT+QeQAe3ZNTYh7h3JCsajytl 55bv4UaAdeXyaP0KTFsSGBhMvDnTAKw= X-Google-Smtp-Source: ABdhPJw7lDvO1MHuloAiRRHK/9CSD4zYB4NRxtgEq0HCbXnurenuq1Ztwl46ypeON4Bk3azBqhh8vQ== X-Received: by 2002:a17:906:6981:: with SMTP id i1mr5123333ejr.289.1622826537290; Fri, 04 Jun 2021 10:08:57 -0700 (PDT) Received: from localhost.localdomain (p200300f137127c00f22f74fffe210725.dip0.t-ipconnect.de. [2003:f1:3712:7c00:f22f:74ff:fe21:725]) by smtp.googlemail.com with ESMTPSA id q26sm3010663ejc.3.2021.06.04.10.08.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 04 Jun 2021 10:08:56 -0700 (PDT) From: Martin Blumenstingl To: linux-amlogic@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, jbrunet@baylibre.com, khilman@baylibre.com, narmstrong@baylibre.com, Martin Blumenstingl Subject: [PATCH] ARM: dts: meson: Set the fifo-size of uart_A to 128 bytes Date: Fri, 4 Jun 2021 19:08:44 +0200 Message-Id: <20210604170844.2201229-1-martin.blumenstingl@googlemail.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210604_100858_949244_7269491D X-CRM114-Status: GOOD ( 11.31 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The first UART controller in the "Everything-Else" power domain is called uart_A. Unlike all other UARTs (which use a 64 byte fifo-size in hardware) uart_A has a fifo-size of 128 bytes. This UART controller is typically used for Bluetooth HCI. The fifo-size of 128 bytes is valid from all SoCs from Meson6 (or possibly even earlier) all the way up to the latest 64-bit ones. Signed-off-by: Martin Blumenstingl --- arch/arm/boot/dts/meson.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/meson.dtsi b/arch/arm/boot/dts/meson.dtsi index 8bae6ed0abb2..bd0e864964e9 100644 --- a/arch/arm/boot/dts/meson.dtsi +++ b/arch/arm/boot/dts/meson.dtsi @@ -50,6 +50,7 @@ uart_A: serial@84c0 { compatible = "amlogic,meson6-uart", "amlogic,meson-uart"; reg = <0x84c0 0x18>; interrupts = ; + fifo-size = <128>; status = "disabled"; }; -- 2.31.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.7 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_SIGNED,DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 08989C4743C for ; Fri, 4 Jun 2021 17:09:16 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id CE76761400 for ; Fri, 4 Jun 2021 17:09:15 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CE76761400 Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=googlemail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=OXmjaZMHo93lxLN70pDQTUaX7KSedgJBMDxZN8PBDFQ=; b=agykgbBWCJz1qW Jgku3B/n26a8OYQvNcKPOZMd4OyBBAxgMt6IieByqLl+lQBXVHzN5Jld0ygR1lSlSiybREMFxl2rT gZWKKQrH1YwkkdTko35bFNz5gx4lF6S8bcWOPxTVovqtN44FVjwaDsk40CwwxnoD9rBzUTp0nnbCx Zu1niGPMiZqiol8Qhh0zNB/EclZfd1u0/lhTzxNoMuKSxM1xy56KR17SGQfqI43A043hetsTncL9e 6VP0GUjEb49qYb6NbFM540ekgVNxseG8DYC1s9cOI1u37VCxbnJyZ+EmrVnbOgG/wQw+1Jro3PkpP pPsmhVhpqNUH/dSIBpEw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1lpDJg-00EXRG-Th; Fri, 04 Jun 2021 17:09:04 +0000 Received: from mail-ej1-x62b.google.com ([2a00:1450:4864:20::62b]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1lpDJa-00EXPw-Sd; Fri, 04 Jun 2021 17:09:02 +0000 Received: by mail-ej1-x62b.google.com with SMTP id l1so15577322ejb.6; Fri, 04 Jun 2021 10:08:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=OoQ9gA8dbbWK1PtB4dCFVLRMGfxxHdj7P0i/xhgg55I=; b=vTUoh8iFX3WkURlZGhaLT4GCmDnGg2CBfohcDURDFZ8JOOKfDNWxGtN+siZlEUUCg8 eOC+yekb2HorPEMH374VVAe8ep18bRtQUp/CNQxyifMSoI6iWViNQqwdCdGx7Jg8AQK6 wtPbe3nXeWZBlZ8QJcEaZJZ3gX2A+DmTCODTu441hfpIs+uExsJGdZU82cZAd5W5/Kdl oBIP0W9Ww7QN9kvGEArtmMI9iCfEwZ10cC4OrR3NOj5cD0ZakkJvuvOF24nqWrGE5bZZ cvkdYzTGfYfACjRNkw5FixPCHtUTg2GeRMUkcmjHOlCXWHDb1Wj3aJG3MCq8s5SUbgep Ukfw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=OoQ9gA8dbbWK1PtB4dCFVLRMGfxxHdj7P0i/xhgg55I=; b=KbAi7KHux32SWGydX0Fezk/7Mm8V9vipUHPn+0mAiDtDECosY+OWoFxB0S7ij3kM48 4K54yXhs10ledFLXfBfkM+o/JkBAHfWo6wyQ3iZjnYrHCOOVNTSkv5VCElQOX+oVA0p4 Wxnp6pg3SfMn9OaY0dgYmYCWaegF6v5DpjCu0zX0YpnHSiYImch6Eh3B13AyJKAUJq5D P5sfzOQBEjWpLI9HM9+U4v6FJA9agNXTLZ2RTBVk6nzM0uhqzjiaqkW04WBHEAZXqCB2 mv1eJsxHV6kDlrecCjpaY4wy8orUrzRFD3BMq73pWKtYOimh/yNPvaTujpgd3jz6e0Rf Fs4g== X-Gm-Message-State: AOAM5313x1A7frSS7F+jku9XeKFPtSVsT+QeQAe3ZNTYh7h3JCsajytl 55bv4UaAdeXyaP0KTFsSGBhMvDnTAKw= X-Google-Smtp-Source: ABdhPJw7lDvO1MHuloAiRRHK/9CSD4zYB4NRxtgEq0HCbXnurenuq1Ztwl46ypeON4Bk3azBqhh8vQ== X-Received: by 2002:a17:906:6981:: with SMTP id i1mr5123333ejr.289.1622826537290; Fri, 04 Jun 2021 10:08:57 -0700 (PDT) Received: from localhost.localdomain (p200300f137127c00f22f74fffe210725.dip0.t-ipconnect.de. [2003:f1:3712:7c00:f22f:74ff:fe21:725]) by smtp.googlemail.com with ESMTPSA id q26sm3010663ejc.3.2021.06.04.10.08.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 04 Jun 2021 10:08:56 -0700 (PDT) From: Martin Blumenstingl To: linux-amlogic@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, jbrunet@baylibre.com, khilman@baylibre.com, narmstrong@baylibre.com, Martin Blumenstingl Subject: [PATCH] ARM: dts: meson: Set the fifo-size of uart_A to 128 bytes Date: Fri, 4 Jun 2021 19:08:44 +0200 Message-Id: <20210604170844.2201229-1-martin.blumenstingl@googlemail.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210604_100858_949244_7269491D X-CRM114-Status: GOOD ( 11.31 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org The first UART controller in the "Everything-Else" power domain is called uart_A. Unlike all other UARTs (which use a 64 byte fifo-size in hardware) uart_A has a fifo-size of 128 bytes. This UART controller is typically used for Bluetooth HCI. The fifo-size of 128 bytes is valid from all SoCs from Meson6 (or possibly even earlier) all the way up to the latest 64-bit ones. Signed-off-by: Martin Blumenstingl --- arch/arm/boot/dts/meson.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/meson.dtsi b/arch/arm/boot/dts/meson.dtsi index 8bae6ed0abb2..bd0e864964e9 100644 --- a/arch/arm/boot/dts/meson.dtsi +++ b/arch/arm/boot/dts/meson.dtsi @@ -50,6 +50,7 @@ uart_A: serial@84c0 { compatible = "amlogic,meson6-uart", "amlogic,meson-uart"; reg = <0x84c0 0x18>; interrupts = ; + fifo-size = <128>; status = "disabled"; }; -- 2.31.1 _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic