From patchwork Tue Jun 5 09:30:30 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 163056 Return-Path: X-Original-To: incoming-imx@patchwork.ozlabs.org Delivered-To: patchwork-incoming-imx@bilbo.ozlabs.org Received: from merlin.infradead.org (merlin.infradead.org [IPv6:2001:4978:20e::2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 2BADEB6F13 for ; Tue, 5 Jun 2012 19:34:21 +1000 (EST) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1Sbq6F-0008Lr-Kv; Tue, 05 Jun 2012 09:30:51 +0000 Received: from metis.ext.pengutronix.de ([2001:6f8:1178:4:290:27ff:fe1d:cc33]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1Sbq65-0008Kf-Dp for linux-arm-kernel@lists.infradead.org; Tue, 05 Jun 2012 09:30:42 +0000 Received: from dude.hi.pengutronix.de ([2001:6f8:1178:2:21e:67ff:fe11:9c5c]) by metis.ext.pengutronix.de with esmtp (Exim 4.72) (envelope-from ) id 1Sbq5v-0002MB-8J; Tue, 05 Jun 2012 11:30:31 +0200 Received: from sha by dude.hi.pengutronix.de with local (Exim 4.77) (envelope-from ) id 1Sbq5v-0006l5-6A; Tue, 05 Jun 2012 11:30:31 +0200 From: Sascha Hauer To: Subject: [PATCH 2/2] ARM i.MX5: Hard reset the IPU during startup Date: Tue, 5 Jun 2012 11:30:30 +0200 Message-Id: <1338888630-25930-3-git-send-email-s.hauer@pengutronix.de> X-Mailer: git-send-email 1.7.10 In-Reply-To: <1338888630-25930-1-git-send-email-s.hauer@pengutronix.de> References: <1338888630-25930-1-git-send-email-s.hauer@pengutronix.de> X-SA-Exim-Connect-IP: 2001:6f8:1178:2:21e:67ff:fe11:9c5c X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-Spam-Note: CRM114 invocation failed X-Spam-Score: -1.9 (-) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-1.9 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 T_RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: Sascha Hauer X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org List-Id: linux-imx-kernel.lists.patchwork.ozlabs.org Signed-off-by: Sascha Hauer --- arch/arm/mach-imx/mm-imx5.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/arch/arm/mach-imx/mm-imx5.c b/arch/arm/mach-imx/mm-imx5.c index a4cb441..3b028ef 100644 --- a/arch/arm/mach-imx/mm-imx5.c +++ b/arch/arm/mach-imx/mm-imx5.c @@ -214,6 +214,15 @@ static void __init imx51_ipu_mipi_setup(void) hsc_addr + 0x800); } +static void __init imx51_ipu_hardreset(void) +{ + u32 val; + + val = readl(MX51_IO_ADDRESS(MX51_SRC_BASE_ADDR)); + val |= 1 << 3; + writel(val, MX51_IO_ADDRESS(MX51_SRC_BASE_ADDR)); +} + void __init imx51_soc_init(void) { /* i.mx51 has the i.mx31 type gpio */ @@ -233,6 +242,16 @@ void __init imx51_soc_init(void) platform_device_register_simple("imx31-audmux", 0, imx51_audmux_res, ARRAY_SIZE(imx51_audmux_res)); imx51_ipu_mipi_setup(); + imx51_ipu_hardreset(); +} + +static void __init imx53_ipu_hardreset(void) +{ + u32 val; + + val = readl(MX53_IO_ADDRESS(MX53_SRC_BASE_ADDR)); + val |= 1 << 3; + writel(val, MX53_IO_ADDRESS(MX53_SRC_BASE_ADDR)); } void __init imx53_soc_init(void) @@ -257,6 +276,7 @@ void __init imx53_soc_init(void) /* i.mx53 has the i.mx31 type audmux */ platform_device_register_simple("imx31-audmux", 0, imx53_audmux_res, ARRAY_SIZE(imx53_audmux_res)); + imx53_ipu_hardreset(); } void __init imx51_init_late(void)