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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 355CAC2B9F4 for ; Mon, 14 Jun 2021 23:07:15 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 5E7F461246 for ; Mon, 14 Jun 2021 23:07:14 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5E7F461246 Authentication-Results: mail.kernel.org; dmarc=pass (p=none dis=none) header.from=ozlabs.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4G3nCP4WXXz3cC0 for ; Tue, 15 Jun 2021 09:07:13 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; secure) header.d=ozlabs.org header.i=@ozlabs.org header.a=rsa-sha256 header.s=201707 header.b=i0YsfTWy; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=ozlabs.org (client-ip=203.11.71.1; helo=ozlabs.org; envelope-from=paulus@ozlabs.org; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; secure) header.d=ozlabs.org header.i=@ozlabs.org header.a=rsa-sha256 header.s=201707 header.b=i0YsfTWy; dkim-atps=neutral Received: from ozlabs.org (bilbo.ozlabs.org [203.11.71.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4G3n9d2RYwz2ypn for ; Tue, 15 Jun 2021 09:05:41 +1000 (AEST) Received: by ozlabs.org (Postfix) id 4G3n9b00bLz9sWF; Tue, 15 Jun 2021 09:05:39 +1000 (AEST) Received: by ozlabs.org (Postfix, from userid 1003) id 4G3n9Z5sHrz9sXG; Tue, 15 Jun 2021 09:05:38 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ozlabs.org; s=201707; t=1623711938; bh=loA3ouzsUnukPpgdl7oIDfl7IffKwidAdQGPfG0YPyo=; h=Date:From:To:Subject:References:In-Reply-To:From; b=i0YsfTWyGc/IZm2zfprO+XR60j2d7P2VPJKamX135shuGuIqSyHXnQoHzkRcnkhGW 4BYbP6SpYCyTQ3PFvBRfs9DbL67wsD1oaUKDiz26OFELgEesqt9pHBRGmLkqHpcX8I WoMRdoyHdIVTV+tUHr6cnM28InTG8R1RWqSlOU9cfQ2UqNDYtTh/IWYxVfwFUCUvWX BbZd89FZSb9pD5coVbOpmmd3iWyJ+XoaD7PoKw715+/O5Lc1irIXQgw5DL5qABNiWb SO4ya6OLQrTCZXxTejqXIjcXaoc5NeL3J7XEHgW0VSkBAYMqZ9UiLjaoJBmL9Dsl+/ U0pPmHReUqmwQ== Date: Tue, 15 Jun 2021 08:57:43 +1000 From: Paul Mackerras To: linuxppc-dev@ozlabs.org Subject: [PATCH 01/11] powerpc: Add Microwatt platform Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Microwatt is a FPGA-based implementation of the Power ISA. It currently only implements little-endian 64-bit mode, and does not (yet) support SMP, VMX, VSX or transactional memory. This adds a new machine type to support FPGA-based SoCs with a Microwatt core. Signed-off-by: Paul Mackerras --- arch/powerpc/Kconfig | 2 +- arch/powerpc/platforms/Kconfig | 1 + arch/powerpc/platforms/Makefile | 1 + arch/powerpc/platforms/microwatt/Kconfig | 9 +++++++++ arch/powerpc/platforms/microwatt/Makefile | 1 + arch/powerpc/platforms/microwatt/setup.c | 23 +++++++++++++++++++++++ 6 files changed, 36 insertions(+), 1 deletion(-) create mode 100644 arch/powerpc/platforms/microwatt/Kconfig create mode 100644 arch/powerpc/platforms/microwatt/Makefile create mode 100644 arch/powerpc/platforms/microwatt/setup.c diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 386ae12d8523..5ce51c38a346 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -422,7 +422,7 @@ config HUGETLB_PAGE_SIZE_VARIABLE config MATH_EMULATION bool "Math emulation" - depends on 4xx || PPC_8xx || PPC_MPC832x || BOOKE + depends on 4xx || PPC_8xx || PPC_MPC832x || BOOKE || PPC_MICROWATT select PPC_FPU_REGS help Some PowerPC chips designed for embedded applications do not have diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig index 7a5e8f4541e3..74be4d06afbf 100644 --- a/arch/powerpc/platforms/Kconfig +++ b/arch/powerpc/platforms/Kconfig @@ -20,6 +20,7 @@ source "arch/powerpc/platforms/embedded6xx/Kconfig" source "arch/powerpc/platforms/44x/Kconfig" source "arch/powerpc/platforms/40x/Kconfig" source "arch/powerpc/platforms/amigaone/Kconfig" +source "arch/powerpc/platforms/microwatt/Kconfig" config KVM_GUEST bool "KVM Guest support" diff --git a/arch/powerpc/platforms/Makefile b/arch/powerpc/platforms/Makefile index 143d4417f6cc..edcb54cdb1a8 100644 --- a/arch/powerpc/platforms/Makefile +++ b/arch/powerpc/platforms/Makefile @@ -22,3 +22,4 @@ obj-$(CONFIG_PPC_CELL) += cell/ obj-$(CONFIG_PPC_PS3) += ps3/ obj-$(CONFIG_EMBEDDED6xx) += embedded6xx/ obj-$(CONFIG_AMIGAONE) += amigaone/ +obj-$(CONFIG_PPC_MICROWATT) += microwatt/ diff --git a/arch/powerpc/platforms/microwatt/Kconfig b/arch/powerpc/platforms/microwatt/Kconfig new file mode 100644 index 000000000000..3be01e78ce57 --- /dev/null +++ b/arch/powerpc/platforms/microwatt/Kconfig @@ -0,0 +1,9 @@ +# SPDX-License-Identifier: GPL-2.0 +config PPC_MICROWATT + depends on PPC_BOOK3S_64 && !SMP + bool "Microwatt SoC platform" + select PPC_XICS + select PPC_NATIVE + help + This option enables support for FPGA-based Microwatt implementations. + diff --git a/arch/powerpc/platforms/microwatt/Makefile b/arch/powerpc/platforms/microwatt/Makefile new file mode 100644 index 000000000000..e6885b3b2ee7 --- /dev/null +++ b/arch/powerpc/platforms/microwatt/Makefile @@ -0,0 +1 @@ +obj-y += setup.o diff --git a/arch/powerpc/platforms/microwatt/setup.c b/arch/powerpc/platforms/microwatt/setup.c new file mode 100644 index 000000000000..d80d52612672 --- /dev/null +++ b/arch/powerpc/platforms/microwatt/setup.c @@ -0,0 +1,23 @@ +/* + * Microwatt FPGA-based SoC platform setup code. + * + * Copyright 2020 Paul Mackerras (paulus@ozlabs.org), IBM Corp. + */ + +#include +#include +#include +#include +#include +#include + +static int __init microwatt_probe(void) +{ + return of_machine_is_compatible("microwatt-soc"); +} + +define_machine(microwatt) { + .name = "microwatt", + .probe = microwatt_probe, + .calibrate_decr = generic_calibrate_decr, +}; -- 2.31.1