From nobody Mon Feb 9 10:51:25 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of groups.io designates 66.175.222.108 as permitted sender) client-ip=66.175.222.108; envelope-from=bounce+27952+113558+1787277+3901457@groups.io; helo=mail02.groups.io; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of groups.io designates 66.175.222.108 as permitted sender) smtp.mailfrom=bounce+27952+113558+1787277+3901457@groups.io; dmarc=fail(p=none dis=none) header.from=arm.com ARC-Seal: i=1; a=rsa-sha256; t=1704931469; cv=none; d=zohomail.com; s=zohoarc; b=MpD8Q4sh4f/7sjGPX5zo0sKaVB7iUTWnKHyV2wvCpZ1U6s9bkPvebeFBjt34TXS6bd0Y41t0SEwmIFkPCvxMJa0nhixpIAzo/t7d4HhTIXdcfrl8ZRm5aZA1GNmcND2RnD6XSlDdzaKK9ciFC6donxHQnyVTrPUAlCqbgw/AHWs= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1704931469; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Id:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Reply-To:Reply-To:References:Sender:Subject:Subject:To:To:Message-Id; bh=JqFvg8IRiT3uQMIgohjbPQS5vGGN78RF5/wttPGcvEc=; b=b0tHUApjNB6UuoIocwqT+Ty9LfBCtVEeebUjQVOzHn7jJe9X/MxAitNOGZ8yxNKlutx4KEwdn/aKfenRnqSIG4kzXSMoeJwdNVJr9keHGK/e4/7t1xFtPbf9FXm6G8C3Eavs0APwoXMc/bE76wX5zz9GpD4ixISTKSziBcGomvc= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of groups.io designates 66.175.222.108 as permitted sender) smtp.mailfrom=bounce+27952+113558+1787277+3901457@groups.io; dmarc=fail header.from= (p=none dis=none) Received: from mail02.groups.io (mail02.groups.io [66.175.222.108]) by mx.zohomail.com with SMTPS id 1704931469929109.77116088589912; Wed, 10 Jan 2024 16:04:29 -0800 (PST) Return-Path: DKIM-Signature: a=rsa-sha256; bh=+orJ3mOfn2xPh6/XB1O3LlZ17Rq52G649Cb9MZglE+4=; c=relaxed/simple; d=groups.io; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References:MIME-Version:Precedence:List-Subscribe:List-Help:Sender:List-Id:Mailing-List:Delivered-To:Reply-To:List-Unsubscribe-Post:List-Unsubscribe:Content-Transfer-Encoding; s=20140610; t=1704931469; v=1; b=vrhp048gEmW0/GDwMrNrFss66oY0KIQtveEUhz+L9ox2sZFE69RrymMPwh6e81YMURnuJGA0 Z8eeT28Tcwd0EijX+qIysydH1NCEB1M0OHCcrh8mmTeaQjEE7dychklUVyV+Iw+8kXqNQ0DW1uv YR6FgxWuVNeKVr+XD9DCPEuE= X-Received: by 127.0.0.2 with SMTP id mVljYY1788612xGYSVJG8Obh; Wed, 10 Jan 2024 16:04:29 -0800 X-Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by mx.groups.io with SMTP id smtpd.web11.9367.1704931468825253958 for ; Wed, 10 Jan 2024 16:04:29 -0800 X-Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 7ADE0DA7; Wed, 10 Jan 2024 16:05:14 -0800 (PST) X-Received: from u200865.usa.arm.com (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 6487E3F5A1; Wed, 10 Jan 2024 16:04:28 -0800 (PST) From: "Jeremy Linton" To: devel@edk2.groups.io Cc: ardb+tianocore@kernel.org, quic_llindhol@quicinc.com, Jeremy Linton Subject: [edk2-devel] [RFC 1/6] Silicon/Bcm283x: Document the I2C registers Date: Wed, 10 Jan 2024 18:04:21 -0600 Message-ID: <20240111000426.2735007-2-jeremy.linton@arm.com> In-Reply-To: <20240111000426.2735007-1-jeremy.linton@arm.com> References: <20240111000426.2735007-1-jeremy.linton@arm.com> MIME-Version: 1.0 Precedence: Bulk List-Subscribe: List-Help: Sender: devel@edk2.groups.io List-Id: Mailing-List: list devel@edk2.groups.io; contact devel+owner@edk2.groups.io Reply-To: devel@edk2.groups.io,jeremy.linton@arm.com List-Unsubscribe-Post: List-Unsubscribe=One-Click List-Unsubscribe: X-Gm-Message-State: LcL0AykusbU2mU9cnfKQQOdax1787277AA= Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @groups.io) X-ZM-MESSAGEID: 1704931471350100002 Content-Type: text/plain; charset="utf-8" Since we are now using I2C in edk2, its helpful if we document the register names. Signed-off-by: Jeremy Linton --- .../Include/IndustryStandard/Bcm2836.h | 34 +++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/Silicon/Broadcom/Bcm283x/Include/IndustryStandard/Bcm2836.h b/= Silicon/Broadcom/Bcm283x/Include/IndustryStandard/Bcm2836.h index 55a446a86c..6dc8921346 100644 --- a/Silicon/Broadcom/Bcm283x/Include/IndustryStandard/Bcm2836.h +++ b/Silicon/Broadcom/Bcm283x/Include/IndustryStandard/Bcm2836.h @@ -97,6 +97,40 @@ #define BCM2836_I2C2_BASE_ADDRESS (BCM2836_SOC_R= EGISTERS + BCM2836_I2C2_OFFSET) #define BCM2836_I2C2_LENGTH 0x00000020 =20 +#define BCM2836_I2C3_OFFSET 0x00205600 +#define BCM2836_I2C3_BASE_ADDRESS (BCM2836_SOC_R= EGISTERS + BCM2836_I2C3_OFFSET) +#define BCM2836_I2C3_LENGTH 0x00000020 + +#define BCM2836_I2C4_OFFSET 0x00205800 +#define BCM2836_I2C4_BASE_ADDRESS (BCM2836_SOC_R= EGISTERS + BCM2836_I2C4_OFFSET) +#define BCM2836_I2C4_LENGTH 0x00000020 + +#define BCM2836_I2C5_OFFSET 0x00205a00 //2= 711 doc says 205a80?! +#define BCM2836_I2C5_BASE_ADDRESS (BCM2836_SOC_R= EGISTERS + BCM2836_I2C5_OFFSET) +#define BCM2836_I2C5_LENGTH 0x00000020 + +#define BCM2836_I2C6_OFFSET 0x00205c00 +#define BCM2836_I2C6_BASE_ADDRESS (BCM2836_SOC_R= EGISTERS + BCM2836_I2C6_OFFSET) +#define BCM2836_I2C6_LENGTH 0x00000020 + +#define BCM2836_I2C20_OFFSET 0x00f04500 //2= 711 DCC0 +#define BCM2836_I2C20_BASE_ADDRESS (BCM2836_SOC_R= EGISTERS + BCM2836_I2C20_OFFSET) +#define BCM2836_I2C20_LENGTH 0x00000020 + +#define BCM2836_I2C21_OFFSET 0x00f09500 //2= 711 DCC1 +#define BCM2836_I2C21_BASE_ADDRESS (BCM2836_SOC_R= EGISTERS + BCM2836_I2C21_OFFSET) +#define BCM2836_I2C21_LENGTH 0x00000020 + +/* I2C register offsets */ +#define BCM2835_I2C_C 0x00 +#define BCM2835_I2C_S 0x04 +#define BCM2835_I2C_DLEN 0x08 +#define BCM2835_I2C_A 0x0c +#define BCM2835_I2C_FIFO 0x10 +#define BCM2835_I2C_DIV 0x14 +#define BCM2835_I2C_DEL 0x18 +#define BCM2835_I2C_CLKT 0x1c + #define BCM2836_SPI0_OFFSET 0x00204000 #define BCM2836_SPI0_BASE_ADDRESS (BCM2836_SOC_R= EGISTERS + BCM2836_SPI0_OFFSET) #define BCM2836_SPI0_LENGTH 0x00000020 --=20 2.43.0 -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- Groups.io Links: You receive all messages sent to this group. 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