From mboxrd@z Thu Jan 1 00:00:00 1970 From: Subject: [PATCH 4/4] amd/seattle: Initial revision of AMD Seattle support Date: Wed, 1 Oct 2014 03:07:57 -0500 Message-ID: <1412150877-4090-5-git-send-email-suravee.suthikulpanit@amd.com> References: <1412150877-4090-1-git-send-email-suravee.suthikulpanit@amd.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1412150877-4090-1-git-send-email-suravee.suthikulpanit@amd.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: stefano.stabellini@eu.citrix.com, julien.grall@linaro.org, ian.campbell@citrix.com Cc: Suravee Suthikulpanit , xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org From: Suravee Suthikulpanit This patch add inital (minimal) platform support for AMD Seattle, which mainly just define the matching ID, and specify system_off, and sytem_reset mechanism. Initially, the firmware only support a subset of PSCI-0.2 functions, system-off and sytem-reset. The boot protocol is still using spin-table. Signed-off-by: Suravee Suthikulpanit --- xen/arch/arm/platforms/Makefile | 1 + xen/arch/arm/platforms/seattle.c | 50 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 51 insertions(+) create mode 100644 xen/arch/arm/platforms/seattle.c diff --git a/xen/arch/arm/platforms/Makefile b/xen/arch/arm/platforms/Makefile index 680364f..03e7a14 100644 --- a/xen/arch/arm/platforms/Makefile +++ b/xen/arch/arm/platforms/Makefile @@ -4,3 +4,4 @@ obj-$(CONFIG_ARM_32) += midway.o obj-$(CONFIG_ARM_32) += omap5.o obj-$(CONFIG_ARM_32) += sunxi.o obj-$(CONFIG_ARM_64) += xgene-storm.o +obj-$(CONFIG_ARM_64) += seattle.o diff --git a/xen/arch/arm/platforms/seattle.c b/xen/arch/arm/platforms/seattle.c new file mode 100644 index 0000000..e9a5ecf --- /dev/null +++ b/xen/arch/arm/platforms/seattle.c @@ -0,0 +1,50 @@ +/* + * xen/arch/arm/seattle.c + * + * AMD Seattle specific settings + * + * Suravee Suthikulpanit + * Copyright (c) 2014 Advance Micro Devices Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include + +static const char * const seattle_dt_compat[] __initconst = +{ + "amd,seattle", + NULL +}; + +/* Seattle firmware only implement PSCI handler for + * system off and system reset. This is temporary + * until full PSCI-0.2 is supported. + */ +PLATFORM_START(seattle, "SEATTLE") + .compatible = seattle_dt_compat, + .reset = call_psci_system_reset, + .poweroff = call_psci_system_off, +PLATFORM_END + +/* + * Local variables: + * mode: C + * c-file-style: "BSD" + * c-basic-offset: 4 + * indent-tabs-mode: nil + * End: + */ -- 1.9.3