From patchwork Sat Dec 7 04:43:05 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Simon Glass X-Patchwork-Id: 1205426 X-Patchwork-Delegate: bmeng.cn@gmail.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de (client-ip=85.214.62.61; helo=phobos.denx.de; envelope-from=u-boot-bounces@lists.denx.de; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=chromium.org Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=chromium.org header.i=@chromium.org header.b="GDMDolI4"; dkim-atps=neutral Received: from phobos.denx.de (phobos.denx.de [85.214.62.61]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 47VHRm097Yz9sPL for ; Sat, 7 Dec 2019 16:04:03 +1100 (AEDT) Received: from phobos.denx.de (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id CAED4817D6; Sat, 7 Dec 2019 05:54:55 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=fail (p=none dis=none) header.from=chromium.org Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Authentication-Results: phobos.denx.de; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=chromium.org header.i=@chromium.org header.b="GDMDolI4"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id 0831D817D6; Sat, 7 Dec 2019 05:54:54 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on phobos.denx.de X-Spam-Level: X-Spam-Status: No, score=-0.1 required=5.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,SPF_HELO_NONE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.2 Received: from mail-io1-xd43.google.com (mail-io1-xd43.google.com [IPv6:2607:f8b0:4864:20::d43]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id 5A1DA817CC for ; Sat, 7 Dec 2019 05:54:51 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=chromium.org Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=sjg@chromium.org Received: by mail-io1-xd43.google.com with SMTP id k24so9509960ioc.4 for ; Fri, 06 Dec 2019 20:54:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=o+VMT+qIbZTlnKPqAf7kMobEt+4WTBknhONd9UuqTM0=; b=GDMDolI4E0gi1NWzzXlzcZjsPR4vhB+vIPaJqK1BJ1BwwA0sNAM2sViR7lbAddpn7C sGncBl89BO8rIyJju+v8dmmsf88IuW2O7Nez2AOg5ioZlZUdiUjsAQjSbYop4E69MQSd sUfjlp5rZrWC2/h7ReZujRg3nJuzArfL4T/ws= 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:in-reply-to :references:mime-version:content-transfer-encoding; bh=o+VMT+qIbZTlnKPqAf7kMobEt+4WTBknhONd9UuqTM0=; b=bcXGzoP4ctLSs3gBDb59MzBZ12Ue5iutHnbcpFsLKSXvtpxitiKsnlePILXBbdLR2S z2SkLs182EvoRZ8zwz9mou/RpT+2/NX7q5xuy7NIfW964V5bFJKL4RDnUgksrVOmGXrA pIR4vjY/oae+UnTPdX8Ho6G2uil2E740/HTsxcEdeJXjCe8Q733atmmZND3hOOzz4GIS y/dJ4BPMgV/9qUYK9OnCyNzE5n3zHtp4JdVwEAZv1DYtsfUBWq4/IsXIDAH3eTdB55lJ ydK+eEgAZdITuGjKd8rNTKyWbwVeHYHhzBYVbz44Kg12Lo4vtCX2pRtELbGHEjoAedgN LPkw== X-Gm-Message-State: APjAAAWZ0QZX0xvInkCyceiPRUKGAVJOD2NuMZlmE1XmedT0hGC2PbMO nn7BtDMt7h4x/VgpGpnCNH7jSdmwlQI= X-Google-Smtp-Source: APXvYqyVrNyrP7+n4nS92tVnI0H6esZfruKX8BoH36DfQcFv3JiNBoJ16IkC9f7bu9FvmC4S9wJ35w== X-Received: by 2002:a02:c951:: with SMTP id u17mr601204jao.27.1575694490086; Fri, 06 Dec 2019 20:54:50 -0800 (PST) Received: from kiwi.bld.corp.google.com ([2620:15c:183:0:8223:87c:a681:66aa]) by smtp.gmail.com with ESMTPSA id o7sm4549410ilo.58.2019.12.06.20.54.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 06 Dec 2019 20:54:49 -0800 (PST) From: Simon Glass To: U-Boot Mailing List Subject: [PATCH v6 092/102] x86: apl: Add PCH driver Date: Fri, 6 Dec 2019 21:43:05 -0700 Message-Id: <20191206213936.v6.92.I6bc52befdd8d044d2ef1d8e65a30eb89e376ed24@changeid> X-Mailer: git-send-email 2.24.0.393.g34dc348eaf-goog In-Reply-To: <20191207044315.51770-1-sjg@chromium.org> References: <20191207044315.51770-1-sjg@chromium.org> MIME-Version: 1.0 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.26 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.101.4 at phobos.denx.de X-Virus-Status: Clean Add a driver for the Apollo Lake Platform Controller Hub. It does not have any functionality and is just a placeholder for now. Signed-off-by: Simon Glass Reviewed-by: Bin Meng --- Changes in v6: None Changes in v5: None Changes in v4: - Tidy up header guards - Update SPI flash protection only in SPL - apollolake -> Apollo Lake Changes in v3: None Changes in v2: - Drop probe() function - Implement set_spi_protect() arch/x86/cpu/apollolake/Makefile | 1 + arch/x86/cpu/apollolake/pch.c | 36 ++++++++++++++++++++++ arch/x86/include/asm/arch-apollolake/pch.h | 9 ++++++ 3 files changed, 46 insertions(+) create mode 100644 arch/x86/cpu/apollolake/pch.c create mode 100644 arch/x86/include/asm/arch-apollolake/pch.h diff --git a/arch/x86/cpu/apollolake/Makefile b/arch/x86/cpu/apollolake/Makefile index 31045a03c1..36eefcbad7 100644 --- a/arch/x86/cpu/apollolake/Makefile +++ b/arch/x86/cpu/apollolake/Makefile @@ -7,5 +7,6 @@ obj-$(CONFIG_SPL_BUILD) += systemagent.o obj-y += hostbridge.o obj-y += itss.o obj-y += lpc.o +obj-y += pch.o obj-y += pmc.o obj-y += uart.o diff --git a/arch/x86/cpu/apollolake/pch.c b/arch/x86/cpu/apollolake/pch.c new file mode 100644 index 0000000000..1a5a985221 --- /dev/null +++ b/arch/x86/cpu/apollolake/pch.c @@ -0,0 +1,36 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright 2019 Google LLC + */ + +#include +#include +#include +#include +#include + +#define BIOS_CTRL 0xdc + +static int apl_set_spi_protect(struct udevice *dev, bool protect) +{ + if (spl_phase() == PHASE_SPL) + return lpc_set_spi_protect(dev, BIOS_CTRL, protect); + + return 0; +} + +static const struct pch_ops apl_pch_ops = { + .set_spi_protect = apl_set_spi_protect, +}; + +static const struct udevice_id apl_pch_ids[] = { + { .compatible = "intel,apl-pch" }, + { } +}; + +U_BOOT_DRIVER(apl_pch) = { + .name = "apl_pch", + .id = UCLASS_PCH, + .of_match = apl_pch_ids, + .ops = &apl_pch_ops, +}; diff --git a/arch/x86/include/asm/arch-apollolake/pch.h b/arch/x86/include/asm/arch-apollolake/pch.h new file mode 100644 index 0000000000..bf3e1670d2 --- /dev/null +++ b/arch/x86/include/asm/arch-apollolake/pch.h @@ -0,0 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright 2019 Google LLC + */ + +#ifndef _ASM_ARCH_PCH_H +#define _ASM_ARCH_PCH_H + +#endif /* _ASM_ARCH_PCH_H */