From patchwork Mon Dec 7 07:39:45 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shannon Zhao X-Patchwork-Id: 57752 Delivered-To: patch@linaro.org Received: by 10.112.147.194 with SMTP id tm2csp992652lbb; Sun, 6 Dec 2015 23:42:38 -0800 (PST) X-Received: by 10.55.214.151 with SMTP id p23mr25328291qkl.8.1449474158007; Sun, 06 Dec 2015 23:42:38 -0800 (PST) Return-Path: Received: from lists.gnu.org (lists.gnu.org. [2001:4830:134:3::11]) by mx.google.com with ESMTPS id l89si22476289qgf.73.2015.12.06.23.42.36 for (version=TLS1 cipher=AES128-SHA bits=128/128); Sun, 06 Dec 2015 23:42:37 -0800 (PST) Received-SPF: pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 2001:4830:134:3::11 as permitted sender) client-ip=2001:4830:134:3::11; Authentication-Results: mx.google.com; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 2001:4830:134:3::11 as permitted sender) smtp.mailfrom=qemu-devel-bounces+patch=linaro.org@nongnu.org Received: from localhost ([::1]:53064 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a5qRQ-0005KL-7N for patch@linaro.org; Mon, 07 Dec 2015 02:42:36 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42782) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a5qPP-0001gR-Nl for qemu-devel@nongnu.org; Mon, 07 Dec 2015 02:40:32 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1a5qPO-0004NY-7i for qemu-devel@nongnu.org; Mon, 07 Dec 2015 02:40:31 -0500 Received: from szxga01-in.huawei.com ([58.251.152.64]:51621) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1a5qPI-0004L1-Pf; Mon, 07 Dec 2015 02:40:25 -0500 Received: from 172.24.1.49 (EHLO szxeml427-hub.china.huawei.com) ([172.24.1.49]) by szxrg01-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id DAJ28143; Mon, 07 Dec 2015 15:40:13 +0800 (CST) Received: from HGHY1Z002260041.china.huawei.com (10.177.16.142) by szxeml427-hub.china.huawei.com (10.82.67.182) with Microsoft SMTP Server id 14.3.235.1; Mon, 7 Dec 2015 15:40:05 +0800 From: Shannon Zhao To: , , , , Date: Mon, 7 Dec 2015 15:39:45 +0800 Message-ID: <1449473992-11560-2-git-send-email-zhaoshenglong@huawei.com> X-Mailer: git-send-email 1.9.0.msysgit.0 In-Reply-To: <1449473992-11560-1-git-send-email-zhaoshenglong@huawei.com> References: <1449473992-11560-1-git-send-email-zhaoshenglong@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.177.16.142] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A090205.566537DE.00FB, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: af3e6393854e7e145449975cdbb66b44 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] X-Received-From: 58.251.152.64 Cc: peter.huangpeng@huawei.com, zhaoshenglong@huawei.com, qemu-devel@nongnu.org, graeme.gregory@linaro.org, shannon.zhao@linaro.org Subject: [Qemu-devel] [PATCH v4 1/8] ARM: Virt: Add a GPIO controller X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org From: Shannon Zhao ACPI 5.0 supports GPIO-signaled ACPI Events. This can be used for powerdown, hotplug evnets. Add a GPIO controller in machine virt, to support powerdown, maybe can be used for cpu hotplug. And here we use pl061. Signed-off-by: Shannon Zhao Signed-off-by: Shannon Zhao Reviewed-by: Wei Huang Tested-by: Wei Huang --- hw/arm/virt.c | 30 ++++++++++++++++++++++++++++++ include/hw/arm/virt.h | 1 + 2 files changed, 31 insertions(+) -- 2.0.4 diff --git a/hw/arm/virt.c b/hw/arm/virt.c index 9c6792c..7977e3c 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -120,6 +120,7 @@ static const MemMapEntry a15memmap[] = { [VIRT_UART] = { 0x09000000, 0x00001000 }, [VIRT_RTC] = { 0x09010000, 0x00001000 }, [VIRT_FW_CFG] = { 0x09020000, 0x00000018 }, + [VIRT_GPIO] = { 0x09030000, 0x00001000 }, [VIRT_MMIO] = { 0x0a000000, 0x00000200 }, /* ...repeating for a total of NUM_VIRTIO_TRANSPORTS, each of that size */ [VIRT_PLATFORM_BUS] = { 0x0c000000, 0x02000000 }, @@ -135,6 +136,7 @@ static const int a15irqmap[] = { [VIRT_UART] = 1, [VIRT_RTC] = 2, [VIRT_PCIE] = 3, /* ... to 6 */ + [VIRT_GPIO] = 7, [VIRT_MMIO] = 16, /* ...to 16 + NUM_VIRTIO_TRANSPORTS - 1 */ [VIRT_GIC_V2M] = 48, /* ...to 48 + NUM_GICV2M_SPIS - 1 */ [VIRT_PLATFORM_BUS] = 112, /* ...to 112 + PLATFORM_BUS_NUM_IRQS -1 */ @@ -538,6 +540,32 @@ static void create_rtc(const VirtBoardInfo *vbi, qemu_irq *pic) g_free(nodename); } +static void create_gpio(const VirtBoardInfo *vbi, qemu_irq *pic) +{ + char *nodename; + hwaddr base = vbi->memmap[VIRT_GPIO].base; + hwaddr size = vbi->memmap[VIRT_GPIO].size; + int irq = vbi->irqmap[VIRT_GPIO]; + const char compat[] = "arm,pl061\0arm,primecell"; + + sysbus_create_simple("pl061", base, pic[irq]); + + nodename = g_strdup_printf("/pl061@%" PRIx64, base); + qemu_fdt_add_subnode(vbi->fdt, nodename); + qemu_fdt_setprop_sized_cells(vbi->fdt, nodename, "reg", + 2, base, 2, size); + qemu_fdt_setprop(vbi->fdt, nodename, "compatible", compat, sizeof(compat)); + qemu_fdt_setprop_cell(vbi->fdt, nodename, "#gpio-cells", 2); + qemu_fdt_setprop(vbi->fdt, nodename, "gpio-controller", NULL, 0); + qemu_fdt_setprop_cells(vbi->fdt, nodename, "interrupts", + GIC_FDT_IRQ_TYPE_SPI, irq, + GIC_FDT_IRQ_FLAGS_LEVEL_HI); + qemu_fdt_setprop_cell(vbi->fdt, nodename, "clocks", vbi->clock_phandle); + qemu_fdt_setprop_string(vbi->fdt, nodename, "clock-names", "apb_pclk"); + + g_free(nodename); +} + static void create_virtio_devices(const VirtBoardInfo *vbi, qemu_irq *pic) { int i; @@ -1041,6 +1069,8 @@ static void machvirt_init(MachineState *machine) create_pcie(vbi, pic, vms->highmem); + create_gpio(vbi, pic); + /* Create mmio transports, so the user can create virtio backends * (which will be automatically plugged in to the transports). If * no backend is created the transport will just sit harmlessly idle. diff --git a/include/hw/arm/virt.h b/include/hw/arm/virt.h index f464586..925faa7 100644 --- a/include/hw/arm/virt.h +++ b/include/hw/arm/virt.h @@ -59,6 +59,7 @@ enum { VIRT_PCIE_ECAM, VIRT_PLATFORM_BUS, VIRT_PCIE_MMIO_HIGH, + VIRT_GPIO, }; typedef struct MemMapEntry {