From patchwork Fri Jul 24 17:22:32 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Kanigeri, Hari" X-Patchwork-Id: 37156 Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) by demeter.kernel.org (8.14.2/8.14.2) with ESMTP id n6OHNauN000583 for ; Fri, 24 Jul 2009 17:23:36 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752834AbZGXRWu (ORCPT ); Fri, 24 Jul 2009 13:22:50 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752943AbZGXRWu (ORCPT ); Fri, 24 Jul 2009 13:22:50 -0400 Received: from arroyo.ext.ti.com ([192.94.94.40]:53888 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752832AbZGXRWt (ORCPT ); Fri, 24 Jul 2009 13:22:49 -0400 Received: from dlep35.itg.ti.com ([157.170.170.118]) by arroyo.ext.ti.com (8.13.7/8.13.7) with ESMTP id n6OHMYFU002207; Fri, 24 Jul 2009 12:22:39 -0500 Received: from dlep20.itg.ti.com (localhost [127.0.0.1]) by dlep35.itg.ti.com (8.13.7/8.13.7) with ESMTP id n6OHMXUw022958; Fri, 24 Jul 2009 12:22:33 -0500 (CDT) Received: from dlee74.ent.ti.com (localhost [127.0.0.1]) by dlep20.itg.ti.com (8.12.11/8.12.11) with ESMTP id n6OHMXri014538; Fri, 24 Jul 2009 12:22:33 -0500 (CDT) Received: from dlee03.ent.ti.com ([157.170.170.18]) by dlee74.ent.ti.com ([157.170.170.8]) with mapi; Fri, 24 Jul 2009 12:22:33 -0500 From: "Kanigeri, Hari" To: "tony@atomide.com" , Hiroshi DOYU CC: "linux-omap@vger.kernel.org" , "Gupta, Ramesh" , "rmk@arm.linux.org.uk" , "Pasam, Vijay" Date: Fri, 24 Jul 2009 12:22:32 -0500 Subject: [RFC][PATCH 2/3] ARM:OMAP4 iommu:add omap4 support in iommu Thread-Topic: [RFC][PATCH 2/3] ARM:OMAP4 iommu:add omap4 support in iommu Thread-Index: AcoMg1PZGk9JKqaxS5OUYhk7r7ZXSg== Message-ID: <8F7AF80515AF0D4D93307E594F3CB40E3A8CAD44@dlee03.ent.ti.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: yes X-MS-TNEF-Correlator: acceptlanguage: en-US MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org This patch adds omap4 support in iommu module. This creates OMAP4 platform specific file for iommu and defines the Ducati MMU fault interrupt. Signed-off-by: Hari Kanigeri --- arch/arm/mach-omap2/omap4-iommu.c | 112 ++++++++++++++++++++++++++++++++ arch/arm/plat-omap/include/mach/irqs.h | 2 +- 2 files changed, 113 insertions(+), 1 deletions(-) create mode 100644 arch/arm/mach-omap2/omap4-iommu.c diff --git a/arch/arm/mach-omap2/omap4-iommu.c b/arch/arm/mach-omap2/omap4-iommu.c new file mode 100644 index 0000000..5a782df --- /dev/null +++ b/arch/arm/mach-omap2/omap4-iommu.c @@ -0,0 +1,112 @@ +/* + * omap iommu: omap4 device registration + * + * Copyright (C) 2009-2010 Nokia Corporation + * + * Written by Hari Kanigeri + * + * Added support for OMAP4. This is based on original file + * omap3-iommu.c + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include + +#include +#include + +#define OMAP4_MMU1_BASE 0x55082000 +#define OMAP4_MMU2_BASE 0x4A066000 + +#define OMAP4_MMU1_IRQ INT_44XX_DUCATI_MMU_IRQ +#define OMAP4_MMU2_IRQ INT_44XX_DSP_MMU + + + +static unsigned long iommu_base[] __initdata = { + OMAP4_MMU1_BASE, + OMAP4_MMU2_BASE, +}; + +static int iommu_irq[] __initdata = { + OMAP4_MMU1_IRQ, + OMAP4_MMU2_IRQ, +}; + +static const struct iommu_platform_data omap4_iommu_pdata[] __initconst = { + { + .name = "ducati", + .nr_tlb_entries = 32, + .clk_name = "ducati_ick", + }, +#if defined(CONFIG_MPU_TESLA_IOMMU) + { + .name = "tesla", + .nr_tlb_entries = 32, + .clk_name = "tesla_ick", + }, +#endif +}; +#define NR_IOMMU_DEVICES ARRAY_SIZE(omap4_iommu_pdata) + +static struct platform_device *omap4_iommu_pdev[NR_IOMMU_DEVICES]; + +static int __init omap4_iommu_init(void) +{ + int i, err; + + for (i = 0; i < NR_IOMMU_DEVICES; i++) { + struct platform_device *pdev; + struct resource res[2]; + + pdev = platform_device_alloc("omap-iommu", i); + if (!pdev) { + err = -ENOMEM; + goto err_out; + } + + memset(res, 0, sizeof(res)); + res[0].start = iommu_base[i]; + res[0].end = iommu_base[i] + MMU_REG_SIZE - 1; + res[0].flags = IORESOURCE_MEM; + res[1].start = res[1].end = iommu_irq[i]; + res[1].flags = IORESOURCE_IRQ; + + err = platform_device_add_resources(pdev, res, + ARRAY_SIZE(res)); + if (err) + goto err_out; + err = platform_device_add_data(pdev, &omap4_iommu_pdata[i], + sizeof(omap4_iommu_pdata[0])); + if (err) + goto err_out; + err = platform_device_add(pdev); + if (err) + goto err_out; + omap4_iommu_pdev[i] = pdev; + } + return 0; + +err_out: + while (i--) + platform_device_put(omap4_iommu_pdev[i]); + return err; +} +module_init(omap4_iommu_init); + +static void __exit omap4_iommu_exit(void) +{ + int i; + + for (i = 0; i < NR_IOMMU_DEVICES; i++) + platform_device_unregister(omap4_iommu_pdev[i]); +} +module_exit(omap4_iommu_exit); + +MODULE_AUTHOR("Hiroshi DOYU, Hari Kanigeri"); +MODULE_DESCRIPTION("omap iommu: omap4 device registration"); +MODULE_LICENSE("GPL v2"); + diff --git a/arch/arm/plat-omap/include/mach/irqs.h b/arch/arm/plat-omap/include/mach/irqs.h index fb7cb77..34b6d09 100644 --- a/arch/arm/plat-omap/include/mach/irqs.h +++ b/arch/arm/plat-omap/include/mach/irqs.h @@ -511,7 +511,7 @@ #define INT_44XX_TLL_IRQ (78 + IRQ_GIC_START) #define INT_44XX_PARTHASH_IRQ (79 + IRQ_GIC_START) #define INT_44XX_MMC3_IRQ (94 + IRQ_GIC_START) - +#define INT_44XX_DUCATI_MMU_IRQ (100 + IRQ_GIC_START) /* Max. 128 level 2 IRQs (OMAP1610), 192 GPIOs (OMAP730/850) and * 16 MPUIO lines */