From patchwork Tue Jan 13 02:13:27 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Simon Horman X-Patchwork-Id: 5617311 Return-Path: X-Original-To: patchwork-linux-sh@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 73C949F3A0 for ; Tue, 13 Jan 2015 02:13:44 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id A530A204CF for ; Tue, 13 Jan 2015 02:13:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E86DD2053A for ; Tue, 13 Jan 2015 02:13:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753437AbbAMCNl (ORCPT ); Mon, 12 Jan 2015 21:13:41 -0500 Received: from kirsty.vergenet.net ([202.4.237.240]:41697 "EHLO kirsty.vergenet.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752277AbbAMCNl (ORCPT ); Mon, 12 Jan 2015 21:13:41 -0500 Received: from ayumi.isobedori.kobe.vergenet.net (p8130-ipbfp1005kobeminato.hyogo.ocn.ne.jp [118.10.149.130]) by kirsty.vergenet.net (Postfix) with ESMTP id 177A425BF52; Tue, 13 Jan 2015 13:13:39 +1100 (EST) Received: by ayumi.isobedori.kobe.vergenet.net (Postfix, from userid 7100) id 42365EDEBC4; Tue, 13 Jan 2015 11:13:29 +0900 (JST) From: Simon Horman To: linux-sh@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, Magnus Damm , Geert Uytterhoeven , Simon Horman Subject: [PATCH 1/2] ARM: shmobile: r8a7740: Instantiate GIC from C board code in legacy builds Date: Tue, 13 Jan 2015 11:13:27 +0900 Message-Id: X-Mailer: git-send-email 2.1.4 In-Reply-To: References: Sender: linux-sh-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, 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 From: Geert Uytterhoeven As of commit 9a1091ef0017c40a ("irqchip: gic: Support hierarchy irq domain."), armadillo-legacy hangs during boot with: sh-tmu.0: ch0: used for clock events sh-tmu.0: ch0: used for periodic clock events sh-tmu.0: ch0: failed to request irq 230 sh-tmu.0: ch1: used as clock source sh-cmt-48.1: ch0: failed to request irq 90 sh-cmt-48.1: ch0: registration failed earlytimer: unable to probe sh-cmt-48 early. Calibrating delay loop... This happens because the IRQ numbers of the GIC are now virtual, and no longer match the hardcoded hardware IRQ numbers in the platform board code. To fix this, instantiate the GIC from platform board code when compiling a legacy kernel, like is done on sh73a0 for kzm9g-legacy. Signed-off-by: Geert Uytterhoeven Acked-by: Marc Zyngier Signed-off-by: Simon Horman --- arch/arm/mach-shmobile/setup-r8a7740.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm/mach-shmobile/setup-r8a7740.c b/arch/arm/mach-shmobile/setup-r8a7740.c index 0bfe226..e76e2f8 100644 --- a/arch/arm/mach-shmobile/setup-r8a7740.c +++ b/arch/arm/mach-shmobile/setup-r8a7740.c @@ -793,7 +793,14 @@ void __init r8a7740_init_irq_of(void) void __iomem *intc_msk_base = ioremap_nocache(0xe6900040, 0x10); void __iomem *pfc_inta_ctrl = ioremap_nocache(0xe605807c, 0x4); +#ifdef CONFIG_ARCH_SHMOBILE_LEGACY + void __iomem *gic_dist_base = ioremap_nocache(0xc2800000, 0x1000); + void __iomem *gic_cpu_base = ioremap_nocache(0xc2000000, 0x1000); + + gic_init(0, 29, gic_dist_base, gic_cpu_base); +#else irqchip_init(); +#endif /* route signals to GIC */ iowrite32(0x0, pfc_inta_ctrl);