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KDE/4.13.3; x86_64; ; ) MIME-version: 1.0 Content-transfer-encoding: 7Bit Content-type: text/plain; charset="us-ascii" X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrDIsWRmVeSWpSXmKPExsWy7bCmhe6du9OjDM7vlrB4dmsvk8Xs98oW x3Y8YrK4vGsOm8XyJ2uZLf7/PsdqMbd1OrvFr+VHGR04PHbOusvusWlVJ5vHocMdjB4nW7+x eCzfaeJx8Nw5Ro/Pm+QC2KO4bFJSczLLUov07RK4Mhacns5e0OFY0d9xlrmBcY9pFyMnh4SA icSM019Zuxi5OIQEdjBKXFhwiBHC+c4o8fPgJVaYqqc3tkNV7WaUmLh4HTOE85VR4uu1U2BV bAJWEhPbVzGC2CICshJXpj0EG8UsMJtJ4tGNlewgCWEBe4kH6xYygdgsAqoSs0+fBrN5BTQl NvXtBmsWFfCS2LKvHSouKPFj8j0WEJtZQF5i3/6prBC2jsTZY+vAFkgI7GCTuN9wG2gBB5Dj InH5sw7E2cISr45vYYewpSWerdoIVd/MKPFtxx5miMQERok964UgbGuJw8cvQi3gk+g4/Bdq Jq9ER5sQhOkhMeNnEUS1o8S1bTvBzhQSiJW4OHUC6wRGmVlIrp6F5OpZSK5ewMi8ilEstaA4 Nz212KjASK84Mbe4NC9dLzk/dxMjOE1oue1gXHLO5xCjAAejEg+vw/5pUUKsiWXFlbmHGCU4 mJVEeE9vBwrxpiRWVqUW5ccXleakFh9ilOZgURLnbQ1wiRISSE8sSc1OTS1ILYLJMnFwSjUw rj+wZgLPsnhll0daJcyPZadHFs4+n8G9ruVrdqHVEkuVeUnzGlTsj+7M+3FpWp7BkW3KV7iW 5r8WPf0yfHehUcZ6ngylid431M25iiYn5K7eezRqZfoZBY5L2hsef404dbLjXYPGEuEZhTtf 2iSqJ0cf+im64JzlH7XI3ZOVt1x/vyk7f8pmXiWW4oxEQy3mouJEAAgux98PAwAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrFLMWRmVeSWpSXmKPExsVy+t9jAd07d6dHGZy8wmLx7NZeJovZ75Ut ju14xGRxedccNovlT9YyW/z/fY7VYm7rdHaLX8uPMjpweOycdZfdY9OqTjaPQ4c7GD1Otn5j 8Vi+08Tj4LlzjB6fN8kFsEdx2aSk5mSWpRbp2yVwZSw4PZ29oMOxor/jLHMD4x7TLkZODgkB E4mnN7azdjFycQgJ7GSUeNgwC8r5yihxYtJjdpAqNgEriYntqxhBbBEBWYkr0x4yghQxC8xl klj+/ygzSEJYwF7iwbqFTCA2i4CqxOzTp8FsXgFNiU19u8GaRQW8JLbsa4eKC0r8mHyPBcRm FpCX2Ld/KiuErSWxfudxpgmMvLOQlM1CUjYLSdkCRuZVjJKpBcW56bnFRgVGeanlesWJucWl eel6yfm5mxiBIbztsFb/DsbHS+IPMQpwMCrx8DrsnxYlxJpYVlyZe4hRgoNZSYT39HagEG9K YmVValF+fFFpTmrxIUZpDhYlcV7+/GORQgLpiSWp2ampBalFMFkmDk6pBsYdS/l3bRJo8tY6 KL5pps+E+XOLz4fdmXHp3VynSRxJ00XZpTy49FY9Lllxq/uuVpEDs/zBBSuUs0UvpfNc0pj2 vmmnQ6Sr7fNXfy0m7pp8qjH6/ZyIRy9Tdxv9ex/I933LGnuel1NS6i9c+i7hsN91w8Y9+a3z X3tczlR1sTnc7HPHq1KunFFKiaU4I9FQi7moOBEArYmQ/V0CAAA= X-CMS-MailID: 20180301110252epcas2p3ea455cfb08b2f7edb4af6fbc95addc88 X-Msg-Generator: CA CMS-TYPE: 102P X-CMS-RootMailID: 20180301110252epcas2p3ea455cfb08b2f7edb4af6fbc95addc88 X-RootMTR: 20180301110252epcas2p3ea455cfb08b2f7edb4af6fbc95addc88 References: Sender: linux-ide-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ide@vger.kernel.org Add Amiga Gayle PATA controller driver. It enables libata support for the on-board IDE interfaces on some Amiga models (A600, A1200, A4000 and A4000T) and also for IDE interfaces on the Zorro expansion bus (M-Tech E-Matrix 530 expansion card). Thanks to John Paul Adrian Glaubitz and Michael Schmitz for help with testing the driver. Tested-by: John Paul Adrian Glaubitz Cc: Michael Schmitz Cc: Geert Uytterhoeven Cc: Philippe Ombredanne Signed-off-by: Bartlomiej Zolnierkiewicz --- v2: - clarify license version (it should be GPL 2.0) - use SPDX header drivers/ata/Kconfig | 12 ++ drivers/ata/Makefile | 1 drivers/ata/pata_gayle.c | 222 +++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 235 insertions(+) -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Index: b/drivers/ata/Kconfig =================================================================== --- a/drivers/ata/Kconfig 2018-03-01 11:48:06.941525737 +0100 +++ b/drivers/ata/Kconfig 2018-03-01 11:48:06.921525736 +0100 @@ -963,6 +963,18 @@ config PATA_FALCON If unsure, say N. +config PATA_GAYLE + tristate "Amiga Gayle PATA support" + depends on M68K && AMIGA + help + This option enables support for the on-board IDE + interfaces on some Amiga models (A600, A1200, + A4000 and A4000T) and also for IDE interfaces on + the Zorro expansion bus (M-Tech E-Matrix 530 + expansion card). + + If unsure, say N. + config PATA_ISAPNP tristate "ISA Plug and Play PATA support" depends on ISAPNP Index: b/drivers/ata/Makefile =================================================================== --- a/drivers/ata/Makefile 2018-03-01 11:48:06.941525737 +0100 +++ b/drivers/ata/Makefile 2018-03-01 11:48:06.937525737 +0100 @@ -98,6 +98,7 @@ obj-$(CONFIG_PATA_WINBOND) += pata_sl82c # SFF PIO only obj-$(CONFIG_PATA_CMD640_PCI) += pata_cmd640.o obj-$(CONFIG_PATA_FALCON) += pata_falcon.o +obj-$(CONFIG_PATA_GAYLE) += pata_gayle.o obj-$(CONFIG_PATA_ISAPNP) += pata_isapnp.o obj-$(CONFIG_PATA_IXP4XX_CF) += pata_ixp4xx_cf.o obj-$(CONFIG_PATA_MPIIX) += pata_mpiix.o Index: b/drivers/ata/pata_gayle.c =================================================================== --- /dev/null 1970-01-01 00:00:00.000000000 +0000 +++ b/drivers/ata/pata_gayle.c 2018-03-01 11:57:12.673539480 +0100 @@ -0,0 +1,222 @@ +// SPDX-License-Identifier: GPL-2.0 + +/* + * Amiga Gayle PATA controller driver + * + * Copyright (c) 2018 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * Based on gayle.c: + * + * Created 12 Jul 1997 by Geert Uytterhoeven + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#define DRV_NAME "pata_gayle" +#define DRV_VERSION "0.1.0" + +#define GAYLE_CONTROL 0x101a + +static struct scsi_host_template pata_gayle_sht = { + ATA_PIO_SHT(DRV_NAME), +}; + +/* FIXME: is this needed? */ +static unsigned int pata_gayle_data_xfer(struct ata_queued_cmd *qc, + unsigned char *buf, + unsigned int buflen, int rw) +{ + struct ata_device *dev = qc->dev; + struct ata_port *ap = dev->link->ap; + void __iomem *data_addr = ap->ioaddr.data_addr; + unsigned int words = buflen >> 1; + + /* Transfer multiple of 2 bytes */ + if (rw == READ) + raw_insw((u16 *)data_addr, (u16 *)buf, words); + else + raw_outsw((u16 *)data_addr, (u16 *)buf, words); + + /* Transfer trailing byte, if any. */ + if (unlikely(buflen & 0x01)) { + unsigned char pad[2] = { }; + + /* Point buf to the tail of buffer */ + buf += buflen - 1; + + if (rw == READ) { + raw_insw((u16 *)data_addr, (u16 *)pad, 1); + *buf = pad[0]; + } else { + pad[0] = *buf; + raw_outsw((u16 *)data_addr, (u16 *)pad, 1); + } + words++; + } + + return words << 1; +} + +/* + * Provide our own set_mode() as we don't want to change anything that has + * already been configured.. + */ +static int pata_gayle_set_mode(struct ata_link *link, + struct ata_device **unused) +{ + struct ata_device *dev; + + ata_for_each_dev(dev, link, ENABLED) { + /* We don't really care */ + dev->pio_mode = dev->xfer_mode = XFER_PIO_0; + dev->xfer_shift = ATA_SHIFT_PIO; + dev->flags |= ATA_DFLAG_PIO; + ata_dev_info(dev, "configured for PIO\n"); + } + return 0; +} + +static bool pata_gayle_irq_check(struct ata_port *ap) +{ + u8 ch; + + ch = z_readb((unsigned long)ap->private_data); + if (!(ch & GAYLE_IRQ_IDE)) + return false; + return true; +} + +static void pata_gayle_irq_clear(struct ata_port *ap) +{ + (void)z_readb((unsigned long)ap->ioaddr.status_addr); + z_writeb(0x7c, (unsigned long)ap->private_data); +} + +static struct ata_port_operations pata_gayle_a1200_ops = { + .inherits = &ata_sff_port_ops, + .sff_data_xfer = pata_gayle_data_xfer, + .sff_irq_check = pata_gayle_irq_check, + .sff_irq_clear = pata_gayle_irq_clear, + .cable_detect = ata_cable_unknown, + .set_mode = pata_gayle_set_mode, +}; + +static struct ata_port_operations pata_gayle_a4000_ops = { + .inherits = &ata_sff_port_ops, + .sff_data_xfer = pata_gayle_data_xfer, + .cable_detect = ata_cable_unknown, + .set_mode = pata_gayle_set_mode, +}; + +static int __init pata_gayle_init_one(struct platform_device *pdev) +{ + struct resource *res; + struct gayle_ide_platform_data *pdata; + struct ata_host *host; + struct ata_port *ap; + void __iomem *base; + int ret; + + pdata = dev_get_platdata(&pdev->dev); + + pr_info(DRV_NAME ": Amiga Gayle IDE controller (A%u style)\n", + pdata->explicit_ack ? 1200 : 4000); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) + return -ENODEV; + + if (!devm_request_mem_region(&pdev->dev, res->start, + resource_size(res), DRV_NAME)) { + pr_err(DRV_NAME ": resources busy\n"); + return -EBUSY; + } + + /* allocate host */ + host = ata_host_alloc(&pdev->dev, 1); + if (!host) + return -ENOMEM; + + ap = host->ports[0]; + + if (pdata->explicit_ack) + ap->ops = &pata_gayle_a1200_ops; + else + ap->ops = &pata_gayle_a4000_ops; + + ap->pio_mask = ATA_PIO4; + ap->flags |= ATA_FLAG_SLAVE_POSS | ATA_FLAG_NO_IORDY; + + base = ZTWO_VADDR(pdata->base); + ap->ioaddr.data_addr = base; + ap->ioaddr.error_addr = base + 2 + 1 * 4; + ap->ioaddr.feature_addr = base + 2 + 1 * 4; + ap->ioaddr.nsect_addr = base + 2 + 2 * 4; + ap->ioaddr.lbal_addr = base + 2 + 3 * 4; + ap->ioaddr.lbam_addr = base + 2 + 4 * 4; + ap->ioaddr.lbah_addr = base + 2 + 5 * 4; + ap->ioaddr.device_addr = base + 2 + 6 * 4; + ap->ioaddr.status_addr = base + 2 + 7 * 4; + ap->ioaddr.command_addr = base + 2 + 7 * 4; + + ap->ioaddr.altstatus_addr = base + GAYLE_CONTROL; + ap->ioaddr.ctl_addr = base + GAYLE_CONTROL; + + ap->private_data = (void *)ZTWO_VADDR(pdata->irqport); + + ata_port_desc(ap, "cmd 0x%lx ctl 0x%lx", (unsigned long)base, + (unsigned long)base + GAYLE_CONTROL); + + /* activate */ + ret = ata_host_activate(host, IRQ_AMIGA_PORTS, ata_sff_interrupt, + IRQF_SHARED, &pata_gayle_sht); + if (ret) + return ret; + + platform_set_drvdata(pdev, host); + + return 0; +} + +static int __exit pata_gayle_remove_one(struct platform_device *pdev) +{ + struct ata_host *host = platform_get_drvdata(pdev); + + ata_host_detach(host); + + return 0; +} + +static struct platform_driver pata_gayle_driver = { + .remove = __exit_p(pata_gayle_remove_one), + .driver = { + .name = "amiga-gayle-ide", + }, +}; + +module_platform_driver_probe(pata_gayle_driver, pata_gayle_init_one); + +MODULE_AUTHOR("Bartlomiej Zolnierkiewicz"); +MODULE_DESCRIPTION("low-level driver for Amiga Gayle PATA"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:amiga-gayle-ide"); +MODULE_VERSION(DRV_VERSION);