From patchwork Thu Sep 17 10:37:24 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: zhengxing X-Patchwork-Id: 7206001 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 63A8DBEEC1 for ; Thu, 17 Sep 2015 10:39:59 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 7F5FE20690 for ; Thu, 17 Sep 2015 10:39:58 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9202520641 for ; Thu, 17 Sep 2015 10:39:57 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZcWZn-0007KJ-JX; Thu, 17 Sep 2015 10:38:03 +0000 Received: from regular1.263xmail.com ([211.150.99.135]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZcWZg-00077E-4v; Thu, 17 Sep 2015 10:38:00 +0000 Received: from zhengxing?rock-chips.com (unknown [192.168.167.105]) by regular1.263xmail.com (Postfix) with SMTP id 2516B1B1E4; Thu, 17 Sep 2015 18:37:26 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-KSVirus-check: 0 X-ABS-CHECKED: 4 X-ADDR-CHECKED: 0 Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.263.net (Postfix) with ESMTP id A3DA01F1C6; Thu, 17 Sep 2015 18:37:19 +0800 (CST) X-RL-SENDER: zhengxing@rock-chips.com X-FST-TO: heiko@sntech.de X-SENDER-IP: 58.22.7.114 X-LOGIN-NAME: zhengxing@rock-chips.com X-UNIQUE-TAG: <049de5b43c7b3b89c02a3ed3036f8d93> X-ATTACHMENT-NUM: 0 X-SENDER: zhengxing@rock-chips.com X-DNS-TYPE: 0 Received: from localhost.localdomain (unknown [58.22.7.114]) by smtp.263.net (Postfix) whith ESMTP id 19478ITFXPW; Thu, 17 Sep 2015 18:37:20 +0800 (CST) From: Xing Zheng To: heiko@sntech.de Subject: [PATCH v2 7/9] rockchip: make sure timer5 is enabled on rk3036 platforms Date: Thu, 17 Sep 2015 18:37:24 +0800 Message-Id: <1442486244-1833-1-git-send-email-zhengxing@rock-chips.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1442478540-15068-1-git-send-email-zhengxing@rock-chips.com> References: <1442478540-15068-1-git-send-email-zhengxing@rock-chips.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150917_033800_593171_D79392D2 X-CRM114-Status: UNSURE ( 8.36 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -1.9 (-) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-rockchip@lists.infradead.org, zhengxing@rock-chips.com, linux@arm.linux.org.uk, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The timer5 supplies the architected timer and thus as has to run when the system clocksource and clockevents drivers are registered. Signed-off-by: Xing Zheng --- Changes in v2: None arch/arm/mach-rockchip/rockchip.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/arch/arm/mach-rockchip/rockchip.c b/arch/arm/mach-rockchip/rockchip.c index b6cf3b4..937047f 100644 --- a/arch/arm/mach-rockchip/rockchip.c +++ b/arch/arm/mach-rockchip/rockchip.c @@ -32,6 +32,8 @@ #define RK3288_GRF_SOC_CON0 0x244 #define RK3288_TIMER6_7_PHYS 0xff810000 +#define RK3036_TIMER5_PHYS 0x200440a0 + static void __init rockchip_timer_init(void) { if (of_machine_is_compatible("rockchip,rk3288")) { @@ -64,6 +66,25 @@ static void __init rockchip_timer_init(void) regmap_write(grf, RK3288_GRF_SOC_CON0, 0x10000000); else pr_err("rockchip: could not get grf syscon\n"); + } else if (of_machine_is_compatible("rockchip,rk3036")) { + void __iomem *reg_base; + + /* + * Most/all uboot versions for rk3036 don't enable timer5 + * which is needed for the architected timer to work. + * So make sure it is running during early boot. + */ + reg_base = ioremap(RK3036_TIMER5_PHYS, SZ_16K); + if (reg_base) { + writel(0, reg_base + 0x10); + writel(0xffffffff, reg_base); + writel(0xffffffff, reg_base + 0x04); + writel(1, reg_base + 0x10); + dsb(); + iounmap(reg_base); + } else { + pr_err("rockchip: could not map timer5 registers\n"); + } } of_clk_init(NULL); @@ -79,6 +100,7 @@ static void __init rockchip_dt_init(void) static const char * const rockchip_board_dt_compat[] = { "rockchip,rk2928", + "rockchip,rk3036", "rockchip,rk3066a", "rockchip,rk3066b", "rockchip,rk3188",