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Wed, 28 Aug 2019 12:10:11 +0000 (GMT) X-AuditID: cbfec7f5-4f7ff70000001116-3b-5d666f242839 Received: from eusmtip1.samsung.com ( [203.254.199.221]) by eusmgms1.samsung.com (EUCPMTA) with SMTP id 89.03.04166.32F666D5; Wed, 28 Aug 2019 13:10:11 +0100 (BST) Received: from AMDC2765.DIGITAL.local (unknown [106.120.51.73]) by eusmtip1.samsung.com (KnoxPortal) with ESMTPA id 20190828121011eusmtip1679343d1fe73ad3f1873b0802628d60b~-FO7cLPx32343323433eusmtip1V; Wed, 28 Aug 2019 12:10:11 +0000 (GMT) From: Marek Szyprowski To: linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v3 1/2] ARM: dts: exynos: Add support ARM architected timers on Exynos5 Date: Wed, 28 Aug 2019 14:10:04 +0200 Message-Id: <20190828121005.29368-2-m.szyprowski@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190828121005.29368-1-m.szyprowski@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrGIsWRmVeSWpSXmKPExsWy7djP87oq+WmxBn83KFlsnLGe1eL6l+es FufPb2C32PT4GqvFjPP7mCzWHrnLbrFzzklWB3aPTas62Tw2L6n36NuyitHj8ya5AJYoLpuU 1JzMstQifbsErowd/44yFjwQqmjpbGZsYLzF38XIwSEhYCIx80RhFyMXh5DACkaJn8deMkI4 Xxgltv2+ww7hfGaUWLRgO2sXIydYx7XG+WwQieWMEq9aD7DBtUzY8oYJpIpNwFCi620XG4gt IuAtMfnMX7BRzAJXGSWWXvvEApIQFoiU2PP6KSPIISwCqhJPJ4eAhHkFbCVmvZ/PDLFNXmL1 hgNgNqeAncShTZ0sIHMkBJ6zSWzY0sECUeQi0f75P9R5whKvjm9hh7BlJP7vnM8E0dDMKPHw 3Fp2CKeHUeJy0wxGiCpricPHL7KCXMEsoCmxfpc+RNhR4vWvTYyQUOKTuPFWECTMDGRO2jad GSLMK9HRJgRRrSYx6/g6uLUHL1yCut9D4sHe59AwncgosaNjM/sERvlZCMsWMDKuYhRPLS3O TU8tNs5LLdcrTswtLs1L10vOz93ECEwNp/8d/7qDcd+fpEOMAhyMSjy8CclpsUKsiWXFlbmH GCU4mJVEeB+ppMYK8aYkVlalFuXHF5XmpBYfYpTmYFES561meBAtJJCeWJKanZpakFoEk2Xi 4JRqYGzQfSGzobzwS3hDs7Jep8oS7UMyW9jSPeeJxYnxfQk9KeLOu6k7/2uc+4nN0oyMem5y M+Zb8KwItD6w5nDvzgsNhlrqVd4rT0dqcFqZOe487Rn3INz5fKzIdv7N9kELZj598bj+Hq/8 p+1/r3zJ8jqxYAlfj7PWlq72lZPd3k9w2/H6aODK00osxRmJhlrMRcWJAJJ3USUJAwAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrGLMWRmVeSWpSXmKPExsVy+t/xu7rK+WmxBtNfGllsnLGe1eL6l+es FufPb2C32PT4GqvFjPP7mCzWHrnLbrFzzklWB3aPTas62Tw2L6n36NuyitHj8ya5AJYoPZui /NKSVIWM/OISW6VoQwsjPUNLCz0jE0s9Q2PzWCsjUyV9O5uU1JzMstQifbsEvYwd/44yFjwQ qmjpbGZsYLzF38XIySEhYCJxrXE+WxcjF4eQwFJGicPfd7FCJGQkTk5rgLKFJf5c64Iq+sQo cWrrRiaQBJuAoUTXW5AEJ4eIgK/E4zcrWUBsZoGbjBI772iA2MIC4RIv92xl7mLk4GARUJV4 OjkEJMwrYCsx6/18Zoj58hKrNxwAszkF7CQObeoEGyMEVPPg2S7GCYx8CxgZVjGKpJYW56bn FhvqFSfmFpfmpesl5+duYgSG6bZjPzfvYLy0MfgQowAHoxIPb0JyWqwQa2JZcWXuIUYJDmYl Ed5HKqmxQrwpiZVVqUX58UWlOanFhxhNgW6ayCwlmpwPjKG8knhDU0NzC0tDc2NzYzMLJXHe DoGDMUIC6YklqdmpqQWpRTB9TBycUg2M0bM2WlawPLdTVLx0VMrZNHnxBeu9lc7L/0+6eOBo rLrNhkeatqtjQ6+tnxuY8CjTSY/dxvLrj+M+k3/yK2rtX3lkZYdLd/q9qXtSYuJnmG6dl973 meOCRPXu4t32rqlXr3s1/hcvCdzUkH798om3lfs2bDoa4ajqeieKa0Ws25yljvWtigJsSizF GYmGWsxFxYkA3Si0sGkCAAA= X-CMS-MailID: 20190828121012eucas1p10bac7ebb742d968bca251f21dd3aad11 X-Msg-Generator: CA X-RootMTR: 20190828121012eucas1p10bac7ebb742d968bca251f21dd3aad11 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20190828121012eucas1p10bac7ebb742d968bca251f21dd3aad11 References: <20190828121005.29368-1-m.szyprowski@samsung.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190828_051015_914617_8FD8191C X-CRM114-Status: GOOD ( 14.16 ) X-Spam-Score: -5.2 (-----) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-5.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [210.118.77.12 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.0 DKIMWL_WL_HIGH DKIMwl.org - Whitelisted High sender X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Chanwoo Choi , Bartlomiej Zolnierkiewicz , Marc Zyngier , Krzysztof Kozlowski , Marek Szyprowski MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org All CortexA7/A15 based Exynos5 SoCs have ARM architected timers, so enable support for them directly in the base dtsi. None of the known firmware properly configures CNTFRQ arch timer register, so force clock frequency to 24MHz, which is the only configuration supported by the remaining clock drivers so far. Stock firmware for Peach Pit and Pi Chromebooks also doesn't reset properly other arch timer registers, so add respective properties indicating that. Other Exynos5-based boards behaves correctly in this area, what finally allows to enable support for KVM-based virtualization. Signed-off-by: Marek Szyprowski Tested-by: Chanwoo Choi Reviewed-by: Chanwoo Choi --- arch/arm/boot/dts/exynos5420-peach-pit.dts | 4 ++++ arch/arm/boot/dts/exynos54xx.dtsi | 9 +++++++++ arch/arm/boot/dts/exynos5800-peach-pi.dts | 4 ++++ 3 files changed, 17 insertions(+) diff --git a/arch/arm/boot/dts/exynos5420-peach-pit.dts b/arch/arm/boot/dts/exynos5420-peach-pit.dts index f78db6809cca..77e08a4c7300 100644 --- a/arch/arm/boot/dts/exynos5420-peach-pit.dts +++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts @@ -1064,6 +1064,10 @@ status = "okay"; }; +&timer { + arm,cpu-registers-not-fw-configured; +}; + &tmu_cpu0 { vtmu-supply = <&ldo10_reg>; }; diff --git a/arch/arm/boot/dts/exynos54xx.dtsi b/arch/arm/boot/dts/exynos54xx.dtsi index 9c3b63b7cac6..02d34957cd83 100644 --- a/arch/arm/boot/dts/exynos54xx.dtsi +++ b/arch/arm/boot/dts/exynos54xx.dtsi @@ -45,6 +45,15 @@ status = "disabled"; }; + timer: timer { + compatible = "arm,armv7-timer"; + interrupts = , + , + , + ; + clock-frequency = <24000000>; + }; + soc: soc { sysram@2020000 { compatible = "mmio-sram"; diff --git a/arch/arm/boot/dts/exynos5800-peach-pi.dts b/arch/arm/boot/dts/exynos5800-peach-pi.dts index e0f470fe54c8..5e8cec736444 100644 --- a/arch/arm/boot/dts/exynos5800-peach-pi.dts +++ b/arch/arm/boot/dts/exynos5800-peach-pi.dts @@ -1033,6 +1033,10 @@ status = "okay"; }; +&timer { + arm,cpu-registers-not-fw-configured; +}; + &tmu_cpu0 { vtmu-supply = <&ldo10_reg>; }; From patchwork Wed Aug 28 12:10:05 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marek Szyprowski X-Patchwork-Id: 11118805 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4B1D614F7 for ; Wed, 28 Aug 2019 12:10:39 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2959420828 for ; 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Wed, 28 Aug 2019 12:10:12 +0000 (GMT) Received: from eusmgms2.samsung.com (unknown [182.198.249.180]) by eusmtrp1.samsung.com (KnoxPortal) with ESMTP id 20190828121012eusmtrp12adbbc9cffea5fb75aef9cdbb408447e~-FO8OlbDH1908619086eusmtrp1i; Wed, 28 Aug 2019 12:10:12 +0000 (GMT) X-AuditID: cbfec7f2-54fff70000001175-2d-5d666f2577fc Received: from eusmtip1.samsung.com ( [203.254.199.221]) by eusmgms2.samsung.com (EUCPMTA) with SMTP id 8B.C4.04117.42F666D5; Wed, 28 Aug 2019 13:10:12 +0100 (BST) Received: from AMDC2765.DIGITAL.local (unknown [106.120.51.73]) by eusmtip1.samsung.com (KnoxPortal) with ESMTPA id 20190828121011eusmtip14396855e7a74917cc1c4810e0db3ce3c~-FO7zicJ42336023360eusmtip1X; Wed, 28 Aug 2019 12:10:11 +0000 (GMT) From: Marek Szyprowski To: linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v3 2/2] ARM: exynos: Enable support for ARM architected timers Date: Wed, 28 Aug 2019 14:10:05 +0200 Message-Id: <20190828121005.29368-3-m.szyprowski@samsung.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190828121005.29368-1-m.szyprowski@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrKIsWRmVeSWpSXmKPExsWy7djPc7qq+WmxBr9u8VhsnLGe1eL6l+es FufPb2C32PT4GqvFjPP7mCzWHrnLbrFzzklWB3aPTas62Tw2L6n36NuyitHj8ya5AJYoLpuU 1JzMstQifbsEroxbn36xFRxiq7j74DRbA+N+1i5GTg4JAROJT2/bmboYuTiEBFYwSjydf4QN wvnCKLFkyxdmCOczo8TS2VcYYVpWTL/OCJFYziixZf1tRriWXRu/gFWxCRhKdL3tYgOxRQS8 JSaf+csOUsQscBVo1LVPLF2MHBzCAgESh17wgdSwCKhKbPr7gg0kzCtgKzG1wwtimbzE6g0H mEFsTgE7iUObOllAxkgIPGeTWHz9EBtEkYvE64Mnoa4Tlnh1fAs7hC0jcXpyD1RDM6PEw3Nr 2SGcHkaJy00zoDqsJQ4fv8gKsplZQFNi/S59EFNCwFFi0nU1CJNP4sZbQZBiZiBz0rbpzBBh XomONiGIGWoSs46vg9t68MIlZgjbQ6JrQjcLJHgmMkpMmzeBfQKj/CyEXQsYGVcxiqeWFuem pxYb5qWW6xUn5haX5qXrJefnbmIEJobT/45/2sH49VLSIUYBDkYlHl6OxLRYIdbEsuLK3EOM EhzMSiK8j1RSY4V4UxIrq1KL8uOLSnNSiw8xSnOwKInzVjM8iBYSSE8sSc1OTS1ILYLJMnFw SjUwarZ3N5zfc++M9PrHLEtf5l/ozw9zeHLlwpLkObpne52u7eQ/ctDzoMOLXVOXCtY+cZlt KyQvNnmdwIydsxvf95Q3RE7yZGZTynj+7vOCW4vW7n12JIAzSbBQwk38rdemn3YXw61tZJ4e 0Z3nJvOzwMVW7pbAk7BwNr06VfYHNx/lOhjuu7esRImlOCPRUIu5qDgRACW2E2sIAwAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrKLMWRmVeSWpSXmKPExsVy+t/xu7oq+WmxBrcvCVhsnLGe1eL6l+es FufPb2C32PT4GqvFjPP7mCzWHrnLbrFzzklWB3aPTas62Tw2L6n36NuyitHj8ya5AJYoPZui /NKSVIWM/OISW6VoQwsjPUNLCz0jE0s9Q2PzWCsjUyV9O5uU1JzMstQifbsEvYxbn36xFRxi q7j74DRbA+N+1i5GTg4JAROJFdOvM3YxcnEICSxllHj2YC4LREJG4uS0BqgiYYk/17rYIIo+ MUpc/vWXGSTBJmAo0fUWJMHJISLgK/H4zUqwZmaBm4wSO+9odDFycAgL+En8nsgEEmYRUJXY 9PcFG0iYV8BWYmqHF8R4eYnVGw6ATeQUsJM4tKkTbIoQUMmDZ7sYJzDyLWBkWMUoklpanJue W2ykV5yYW1yal66XnJ+7iREYpNuO/dyyg7HrXfAhRgEORiUe3oTktFgh1sSy4srcQ4wSHMxK IryPVFJjhXhTEiurUovy44tKc1KLDzGaAt00kVlKNDkfGEF5JfGGpobmFpaG5sbmxmYWSuK8 HQIHY4QE0hNLUrNTUwtSi2D6mDg4pRoY05wuinC0FkR8yd19kOeOS0xEhPPP1squTN+zhy/k PXnLeeLuitfGay+v2TPxdH3p/T3VfK5fVmjoLax+X3RobX//zfi5/Z0VndOjDivzlDz15HnS cPXwuf0H7ps8FvulOPGka53mCb2dVoaft902Wfwrcsn6H8oWSx5d9png0Tk76btZVvivaCWW 4oxEQy3mouJEAIVY0HNoAgAA X-CMS-MailID: 20190828121012eucas1p2fb78bfebe16d744dc28194bb224650e2 X-Msg-Generator: CA X-RootMTR: 20190828121012eucas1p2fb78bfebe16d744dc28194bb224650e2 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20190828121012eucas1p2fb78bfebe16d744dc28194bb224650e2 References: <20190828121005.29368-1-m.szyprowski@samsung.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190828_051016_498976_BA2CC3D9 X-CRM114-Status: GOOD ( 11.48 ) X-Spam-Score: -5.2 (-----) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-5.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [210.118.77.11 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.0 DKIMWL_WL_HIGH DKIMwl.org - Whitelisted High sender X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Chanwoo Choi , Bartlomiej Zolnierkiewicz , Marc Zyngier , Krzysztof Kozlowski , Marek Szyprowski MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org ARM architected timer can be used together with Exynos MultiCore Timer driver, so enable support for it. Support for ARM architected timers is essential for enabling proper KVM support. Signed-off-by: Marek Szyprowski Reviewed-by: Chanwoo Choi --- arch/arm/mach-exynos/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig index f83786640f94..9dab1f50a02f 100644 --- a/arch/arm/mach-exynos/Kconfig +++ b/arch/arm/mach-exynos/Kconfig @@ -19,6 +19,7 @@ menuconfig ARCH_EXYNOS select EXYNOS_SROM select EXYNOS_PM_DOMAINS if PM_GENERIC_DOMAINS select GPIOLIB + select HAVE_ARM_ARCH_TIMER if ARCH_EXYNOS5 && VIRTUALIZATION select HAVE_ARM_SCU if SMP select HAVE_S3C2410_I2C if I2C select HAVE_S3C2410_WATCHDOG if WATCHDOG