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[83.42.57.239]) by smtp.gmail.com with ESMTPSA id i11sm12371357wmq.10.2020.12.31.14.49.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 31 Dec 2020 14:49:48 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=VwJCZ0fkM6seEv+et0rkbAeXeCRTJ+76lzeZJDFriQk=; b=VKMgTyN+SALsi9ty1hnEYlbPHAXViT49yYmC++uJX0Wsd9lxGlr+1ia+n9S5elSFlD YG8n8TcwsBstHQr42G+6S2OoBTyw7RpxDbp4/vyYMGb+6/6eOreVeB6epqF6QqcmK6EJ P8B1MmGQ9KNCSKttkC8SqTxUGVBQ6IydMV0CAf48PidCCggRQYkRUDx/2xjLMsrSxs6G 0Vnm6GR6iK4yHQeRglcVWKThB2psGO40Y9OdG0LaYMioii0osmKTja/h/YwGSMRMC6Cx C5IUwuSxl5rkUnsdRLuKeDkyWjFHCnsSAgneqWiwtzUV++0eDvVSRvedZ20IbFXti+LE ZonQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-transfer-encoding; bh=VwJCZ0fkM6seEv+et0rkbAeXeCRTJ+76lzeZJDFriQk=; b=lXz2wTMrLVr/bRutcC7be3sPRO0hvTht9atRnBEMDvzuzL0nBILpJB+2toYqmNMD4o Zr9cU1ESV7rXRPAa9EEUwbQv4oUEXn3hpcZvMhvra3XaUNF7Iwd3wL4llloRlalp70Y1 gMqIau+xnRAwnAerGqhGGoEsVzni0b2WemTz5yPdmMLRHbhRCaLpxW+NhzW41Lz2l2d+ LENCiElzeseaRi8Z2ax/0XRkhDWVx1nGCow/zeXh9Z6blKIa7mlGVcFDOJan1Kpl20cA KKMwf3YuRUftjD/sPHTEMdY0SF26Mk/rWLvT3DzRHzieTRdFwy7dgkbrX5q+Kq2kHRzt HWdQ== X-Gm-Message-State: AOAM530BJ1XZZhxCKGRs5PspIzsm245K3wQ3BBPMoaY34g1d244zkDse /dNgbhQdxeCS9cqBTdZXPWg= X-Google-Smtp-Source: ABdhPJy/+AF34tldc1MxGNaofp7jdudFloTOt25dTJINQzxf1Lo8Db5gJzU6byrtOC6uZxGdu3xzsA== X-Received: by 2002:a1c:3cd5:: with SMTP id j204mr13188258wma.53.1609454988707; Thu, 31 Dec 2020 14:49:48 -0800 (PST) Sender: =?UTF-8?Q?Philippe_Mathieu=2DDaud=C3=A9?= From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org Cc: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Jiaxun Yang , Aleksandar Rikalo , Aurelien Jarno , Huacai Chen Subject: [PATCH 07/18] hw/pci-host/bonito: Make BONPONCFG register read-only Date: Thu, 31 Dec 2020 23:49:00 +0100 Message-Id: <20201231224911.1467352-8-f4bug@amsat.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201231224911.1467352-1-f4bug@amsat.org> References: <20201231224911.1467352-1-f4bug@amsat.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @gmail.com) Per the datasheet (Chapter 5.2. "Power-on settable configuration register - bonponcfg"), the bonponcfg can only be modified using "pull-up on the corresponding IOD0-15 signal". Do not allow update of this register by the CPU. Signed-off-by: Philippe Mathieu-Daud=C3=A9 --- hw/pci-host/bonito.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/pci-host/bonito.c b/hw/pci-host/bonito.c index 93820f69e49..29c0294d289 100644 --- a/hw/pci-host/bonito.c +++ b/hw/pci-host/bonito.c @@ -251,7 +251,6 @@ static void bonito_writel(void *opaque, hwaddr addr, DPRINTF("bonito_writel "TARGET_FMT_plx" val %lx saddr %x\n", addr, val, saddr); switch (saddr) { - case BONITO_BONPONCFG: case BONITO_IODEVCFG: case BONITO_SDCFG: case BONITO_PCIMAP: @@ -292,6 +291,7 @@ static void bonito_writel(void *opaque, hwaddr addr, s->regs[BONITO_INTENCLR] =3D val; s->regs[BONITO_INTEN] &=3D ~val; break; + case BONITO_BONPONCFG: case BONITO_INTEN: case BONITO_INTISR: DPRINTF("write to readonly bonito register %x\n", saddr); --=20 2.26.2