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[24.155.109.49]) by smtp.googlemail.com with ESMTPSA id y25sm1545755oto.27.2020.02.18.09.13.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 Feb 2020 09:13:24 -0800 (PST) From: Rob Herring To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, soc@kernel.org, Andre Przywara , Robert Richter , Jon Loeliger , Alexander Graf , Matthias Brugger , Mark Langsdorf Cc: Alex Williamson , Borislav Petkov , Cornelia Huck , Daniel Lezcano , "David S. Miller" , devicetree@vger.kernel.org, Eric Auger , iommu@lists.linux-foundation.org, James Morse , Jens Axboe , Joerg Roedel , kvm@vger.kernel.org, linux-clk@vger.kernel.org, linux-edac@vger.kernel.org, linux-ide@vger.kernel.org, linux-pm@vger.kernel.org, Mauro Carvalho Chehab , netdev@vger.kernel.org, "Rafael J. Wysocki" , Robin Murphy , Stephen Boyd , Tony Luck , Viresh Kumar , Will Deacon Subject: [RFC PATCH 01/11] vfio: Remove Calxeda XGMAC reset driver Date: Tue, 18 Feb 2020 11:13:11 -0600 Message-Id: <20200218171321.30990-2-robh@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200218171321.30990-1-robh@kernel.org> References: <20200218171321.30990-1-robh@kernel.org> MIME-Version: 1.0 Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Cc: Eric Auger Cc: Alex Williamson Cc: Cornelia Huck Cc: kvm@vger.kernel.org Signed-off-by: Rob Herring --- Do not apply yet. drivers/vfio/platform/reset/Kconfig | 8 -- drivers/vfio/platform/reset/Makefile | 2 - .../reset/vfio_platform_calxedaxgmac.c | 74 ------------------- 3 files changed, 84 deletions(-) delete mode 100644 drivers/vfio/platform/reset/vfio_platform_calxedaxgmac.c -- 2.20.1 diff --git a/drivers/vfio/platform/reset/Kconfig b/drivers/vfio/platform/reset/Kconfig index 1edbe9ee7356..3668d1d92909 100644 --- a/drivers/vfio/platform/reset/Kconfig +++ b/drivers/vfio/platform/reset/Kconfig @@ -1,12 +1,4 @@ # SPDX-License-Identifier: GPL-2.0-only -config VFIO_PLATFORM_CALXEDAXGMAC_RESET - tristate "VFIO support for calxeda xgmac reset" - depends on VFIO_PLATFORM - help - Enables the VFIO platform driver to handle reset for Calxeda xgmac - - If you don't know what to do here, say N. - config VFIO_PLATFORM_AMDXGBE_RESET tristate "VFIO support for AMD XGBE reset" depends on VFIO_PLATFORM diff --git a/drivers/vfio/platform/reset/Makefile b/drivers/vfio/platform/reset/Makefile index 7294c5ea122e..be7960ce5dbc 100644 --- a/drivers/vfio/platform/reset/Makefile +++ b/drivers/vfio/platform/reset/Makefile @@ -1,7 +1,5 @@ # SPDX-License-Identifier: GPL-2.0 -vfio-platform-calxedaxgmac-y := vfio_platform_calxedaxgmac.o vfio-platform-amdxgbe-y := vfio_platform_amdxgbe.o -obj-$(CONFIG_VFIO_PLATFORM_CALXEDAXGMAC_RESET) += vfio-platform-calxedaxgmac.o obj-$(CONFIG_VFIO_PLATFORM_AMDXGBE_RESET) += vfio-platform-amdxgbe.o obj-$(CONFIG_VFIO_PLATFORM_BCMFLEXRM_RESET) += vfio_platform_bcmflexrm.o diff --git a/drivers/vfio/platform/reset/vfio_platform_calxedaxgmac.c b/drivers/vfio/platform/reset/vfio_platform_calxedaxgmac.c deleted file mode 100644 index 09a9453b75c5..000000000000 --- a/drivers/vfio/platform/reset/vfio_platform_calxedaxgmac.c +++ /dev/null @@ -1,74 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * VFIO platform driver specialized for Calxeda xgmac reset - * reset code is inherited from calxeda xgmac native driver - * - * Copyright 2010-2011 Calxeda, Inc. - * Copyright (c) 2015 Linaro Ltd. - * www.linaro.org - */ - -#include -#include -#include -#include - -#include "../vfio_platform_private.h" - -#define DRIVER_VERSION "0.1" -#define DRIVER_AUTHOR "Eric Auger " -#define DRIVER_DESC "Reset support for Calxeda xgmac vfio platform device" - -/* XGMAC Register definitions */ -#define XGMAC_CONTROL 0x00000000 /* MAC Configuration */ - -/* DMA Control and Status Registers */ -#define XGMAC_DMA_CONTROL 0x00000f18 /* Ctrl (Operational Mode) */ -#define XGMAC_DMA_INTR_ENA 0x00000f1c /* Interrupt Enable */ - -/* DMA Control registe defines */ -#define DMA_CONTROL_ST 0x00002000 /* Start/Stop Transmission */ -#define DMA_CONTROL_SR 0x00000002 /* Start/Stop Receive */ - -/* Common MAC defines */ -#define MAC_ENABLE_TX 0x00000008 /* Transmitter Enable */ -#define MAC_ENABLE_RX 0x00000004 /* Receiver Enable */ - -static inline void xgmac_mac_disable(void __iomem *ioaddr) -{ - u32 value = readl(ioaddr + XGMAC_DMA_CONTROL); - - value &= ~(DMA_CONTROL_ST | DMA_CONTROL_SR); - writel(value, ioaddr + XGMAC_DMA_CONTROL); - - value = readl(ioaddr + XGMAC_CONTROL); - value &= ~(MAC_ENABLE_TX | MAC_ENABLE_RX); - writel(value, ioaddr + XGMAC_CONTROL); -} - -static int vfio_platform_calxedaxgmac_reset(struct vfio_platform_device *vdev) -{ - struct vfio_platform_region *reg = &vdev->regions[0]; - - if (!reg->ioaddr) { - reg->ioaddr = - ioremap(reg->addr, reg->size); - if (!reg->ioaddr) - return -ENOMEM; - } - - /* disable IRQ */ - writel(0, reg->ioaddr + XGMAC_DMA_INTR_ENA); - - /* Disable the MAC core */ - xgmac_mac_disable(reg->ioaddr); - - return 0; -} - -module_vfio_reset_handler("calxeda,hb-xgmac", vfio_platform_calxedaxgmac_reset); - -MODULE_VERSION(DRIVER_VERSION); -MODULE_LICENSE("GPL v2"); -MODULE_AUTHOR(DRIVER_AUTHOR); -MODULE_DESCRIPTION(DRIVER_DESC);