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Fri, 24 Jul 2020 08:47:33 +0000 From: Sagar Shrikant Kadam To: u-boot@lists.denx.de Cc: rick@andestech.com, paul.walmsley@sifive.com, palmer@dabbelt.com, anup.patel@wdc.com, atish.patra@wdc.com, lukma@denx.de, pragnesh.patel@sifive.com, bin.meng@windriver.com, jagan@amarulasolutions.com, sjg@chromium.org, twoerner@gmail.com, patrick@blueri.se, mbrugger@suse.com, Eugeniy.Paltsev@synopsys.com, weijie.gao@mediatek.com, nsaenzjulienne@suse.de, festevam@gmail.com, seanga2@gmail.com, Sagar Shrikant Kadam Subject: [PATCH v4 0/5] add DM based reset driver for SiFive SoC's Date: Fri, 24 Jul 2020 01:47:16 -0700 Message-Id: <1595580442-25485-1-git-send-email-sagar.kadam@sifive.com> X-Mailer: git-send-email 2.7.4 X-ClientProxiedBy: BY3PR05CA0017.namprd05.prod.outlook.com (2603:10b6:a03:254::22) To BN8PR13MB2611.namprd13.prod.outlook.com (2603:10b6:408:81::17) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from gamma07.internal.sifive.com (64.62.193.194) by BY3PR05CA0017.namprd05.prod.outlook.com (2603:10b6:a03:254::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.20.3239.9 via Frontend Transport; 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The series here adds a generic DM reset driver for SiFive SoC's so as to leverage the U-Boot's reset framework and binds the reset driver with prci driver. The PRCI driver takes care of triggering the consumers reset signals appropriately. Patch 1: Add necessary dt indexes for device reset register. Patch 2: Update macro's to use common dt indexes from binding header. Patch 3: Add reset producer and consumer entries within the device tree. Patch 4: Add reset dm driver and bind it within prci module. Patch 5: Add Kconfig, Makefile entries and enable the driver This series is re-based on mainline U-Boot commit 5d3a21df6694 ("Merge tag 'dm-pull-20jul20' of git://git.denx.de/u-boot-dm") and depends on [1] [1] https://patchwork.ozlabs.org/project/uboot/list/?series=190862 History: ========================== V4: -Rebased the series to u-boot/master. V3: -Add reset indexes in separate dt binding header instead of updating the clock dt binding header which is synced from Linux V2: -Removed extra character in commit log of 2nd patch V1: -Base version. Sagar Shrikant Kadam (5): dt-bindings: prci: add indexes for reset signals available in prci fu540: prci: use common reset indexes defined in binding header fu540: dtsi: add reset producer and consumer entries sifive: reset: add DM based reset driver for SiFive SoC's configs: reset: fu540: enable dm reset framework for SiFive arch/riscv/dts/fu540-c000-u-boot.dtsi | 12 +++ arch/riscv/include/asm/arch-fu540/reset.h | 13 +++ configs/sifive_fu540_defconfig | 2 + drivers/clk/sifive/fu540-prci.c | 90 ++++++++++++++------ drivers/reset/Kconfig | 9 ++ drivers/reset/Makefile | 1 + drivers/reset/reset-sifive.c | 118 ++++++++++++++++++++++++++ include/dt-bindings/reset/sifive-fu540-prci.h | 19 +++++ 8 files changed, 239 insertions(+), 25 deletions(-) create mode 100644 arch/riscv/include/asm/arch-fu540/reset.h create mode 100644 drivers/reset/reset-sifive.c create mode 100644 include/dt-bindings/reset/sifive-fu540-prci.h