From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755798AbaCNFJk (ORCPT ); Fri, 14 Mar 2014 01:09:40 -0400 Received: from mailout1.samsung.com ([203.254.224.24]:57274 "EHLO mailout1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754857AbaCNFJh (ORCPT ); Fri, 14 Mar 2014 01:09:37 -0400 X-AuditID: cbfee691-b7efc6d0000039d3-39-53228f10dcae Date: Fri, 14 Mar 2014 14:09:35 +0900 From: Cho KyongHo To: Linux ARM Kernel , Linux DeviceTree , Linux IOMMU , Linux Kernel , Linux Samsung SOC Cc: Antonios Motakis , Grant Grundler , Joerg Roedel , Kukjin Kim , Prathyush , Rahul Sharma , Sachin Kamat , Sylwester Nawrocki , Tomasz Figa , Varun Sethi Subject: [PATCH v11 13/27] iommu/exynos: support for device tree Message-id: <20140314140935.e0652b58ce16591b54d0e10b@samsung.com> X-Mailer: Sylpheed 3.3.0 (GTK+ 2.10.14; i686-pc-mingw32) MIME-version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrIIsWRmVeSWpSXmKPExsVy+t8zY12BfqVgg1PvxSzu3D3HajH/CJB4 deQHk8WC/dYWnbM3sFv0LrjKZrHp8TVWi8u75rBZzDi/j8niwoqN7BZTFh1mtTj8pp3V4uSf XkaL9TNes1jMvLWGxYHf48nBeUwesxsusnj8O9zP5HHn2h42j81L6j0m31jO6NG3ZRWjx+dN ch5Xjp5hCuCM4rJJSc3JLEst0rdL4MpYdja2YIVwxf7f15kbGF/ydzFyckgImEhMm9rDCmGL SVy4t56ti5GLQ0hgGaPEyl3nWGCKvj5bxwyRWMQosXDzJSYIZzKTxP2nu5lAqlgEVCUeTF8H ZrMJaEmsnnucEaRIRKCNSeJr4yEWEIdZYC6zxMdvc4CWcHAICzhILPoVCdLAK+AosW7DS2aI dRYSF5o62CHighI/Jt8DO4MZaOjmbU2sELa8xOY1b8FOkhDo5ZDYte4jC8QVAhLfJoMs4wBK yEpsOgA1U1Li4IobLBMYRWYhGTsLydhZSMYuYGRexSiaWpBcUJyUXmSqV5yYW1yal66XnJ+7 iRESvRN3MN4/YH2IMRlo5URmKdHkfGD055XEGxqbGVmYmpgaG5lbmpEmrCTOm/4oKUhIID2x JDU7NbUgtSi+qDQntfgQIxMHp1QDoyyL+HNDjaVVWunuTqdXf70iILi//aTKqwuPHynlnstP U87Z9KdHaMlhP5Zvar/UGhsEH/45evbctTWJczM9d/nPFX9/WurJhy9zvtV+l1oiwZW+5Yp/ 6J7Ox67Z8rfNvFgim1QWRfDN0yjZcjlL4cksTzmnK97tW/bU5ToJ5VhY11o/YA7+r8RSnJFo qMVcVJwIAFh/6oH0AgAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrHKsWRmVeSWpSXmKPExsVy+t9jAV2BfqVgg/WNghZ37p5jtZh/BEi8 OvKDyWLBfmuLztkb2C16F1xls9j0+BqrxeVdc9gsZpzfx2RxYcVGdospiw6zWhx+085qcfJP L6PF+hmvWSxm3lrD4sDv8eTgPCaP2Q0XWTz+He5n8rhzbQ+bx+Yl9R6Tbyxn9OjbsorR4/Mm OY8rR88wBXBGNTDaZKQmpqQWKaTmJeenZOal2yp5B8c7x5uaGRjqGlpamCsp5CXmptoqufgE 6Lpl5gB9oKRQlphTChQKSCwuVtK3wzQhNMRN1wKmMULXNyQIrsfIAA0krGPMWHY2tmCFcMX+ 39eZGxhf8ncxcnJICJhIfH22jhnCFpO4cG89WxcjF4eQwCJGiYWbLzFBOJOZJO4/3c0EUsUi oCrxYPo6MJtNQEti9dzjjCBFIgJtTBJfGw+xgDjMAnOZJT5+mwM0i4NDWMBBYtGvSJAGXgFH iXUbXkKts5C40NTBDhEXlPgx+R4LiM0MNHTztiZWCFteYvOat8wTGPlmISmbhaRsFpKyBYzM qxhFUwuSC4qT0nMN9YoTc4tL89L1kvNzNzGCU8MzqR2MKxssDjEKcDAq8fA6HFYMFmJNLCuu zD3EKMHBrCTCWxWhFCzEm5JYWZValB9fVJqTWnyIMRno7YnMUqLJ+cC0lVcSb2hsYmZkaWRm YWRibk6asJI474FW60AhgfTEktTs1NSC1CKYLUwcnFINjHslpA2+2ikfmBTwmPGhdb/c1+8/ etpT5t74pPJ54fE1U16vMfTV4g5/NKu/1mdHZKvShvdbT5wUmXU3tqZcyTLt9lmne4dMu8TU D9dVfvAtcqu6nblRXuThvd//dz9509/YfGCboP/7sM3MzUpnuVzZLBv+P2w3/mzTlRVUu+3B 4hP7DzXOP63EUpyRaKjFXFScCAC0qTseUQMAAA== DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This commit adds device tree support for System MMU. Signed-off-by: Cho KyongHo --- drivers/iommu/Kconfig | 5 ++--- drivers/iommu/exynos-iommu.c | 21 +++++++++++++++++---- 2 files changed, 19 insertions(+), 7 deletions(-) diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig index df56e4c..22af807 100644 --- a/drivers/iommu/Kconfig +++ b/drivers/iommu/Kconfig @@ -178,16 +178,15 @@ config TEGRA_IOMMU_SMMU config EXYNOS_IOMMU bool "Exynos IOMMU Support" - depends on ARCH_EXYNOS && EXYNOS_DEV_SYSMMU + depends on ARCH_EXYNOS select IOMMU_API + default n help Support for the IOMMU(System MMU) of Samsung Exynos application processor family. This enables H/W multimedia accellerators to see non-linear physical memory chunks as a linear memory in their address spaces - If unsure, say N here. - config EXYNOS_IOMMU_DEBUG bool "Debugging log for Exynos IOMMU" depends on EXYNOS_IOMMU diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c index 33b424d..34feb04 100644 --- a/drivers/iommu/exynos-iommu.c +++ b/drivers/iommu/exynos-iommu.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #include @@ -497,7 +498,7 @@ void exynos_sysmmu_tlb_invalidate(struct device *dev) read_unlock_irqrestore(&data->lock, flags); } -static int exynos_sysmmu_probe(struct platform_device *pdev) +static int __init exynos_sysmmu_probe(struct platform_device *pdev) { int irq, ret; struct device *dev = &pdev->dev; @@ -557,11 +558,23 @@ static int exynos_sysmmu_probe(struct platform_device *pdev) return 0; } -static struct platform_driver exynos_sysmmu_driver = { - .probe = exynos_sysmmu_probe, - .driver = { +#ifdef CONFIG_OF +static struct of_device_id sysmmu_of_match[] __initconst = { + { .compatible = "samsung,sysmmu-v1", }, + { .compatible = "samsung,sysmmu-v2", }, + { .compatible = "samsung,sysmmu-v3.1", }, + { .compatible = "samsung,sysmmu-v3.2", }, + { .compatible = "samsung,sysmmu-v3.3", }, + { }, +}; +#endif + +static struct platform_driver exynos_sysmmu_driver __refdata = { + .probe = exynos_sysmmu_probe, + .driver = { .owner = THIS_MODULE, .name = "exynos-sysmmu", + .of_match_table = of_match_ptr(sysmmu_of_match), } }; -- 1.7.9.5