--- /dev/null
+#include <linux/err.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <linux/ata_platform.h>
+
+#include <asm/sibyte/board.h>
+#include <asm/sibyte/sb1250_genbus.h>
+#include <asm/sibyte/sb1250_regs.h>
+
+#define DRV_NAME "pata-swarm"
+
+#define SWARM_IDE_SHIFT 5
+#define SWARM_IDE_BASE 0x1f0
+#define SWARM_IDE_CTRL 0x3f6
+
+static struct resource swarm_pata_resource[] = {
+ {
+ .name = "Swarm GenBus IDE",
+ .flags = IORESOURCE_MEM,
+ }, {
+ .name = "Swarm GenBus IDE",
+ .flags = IORESOURCE_MEM,
+ }, {
+ .name = "Swarm GenBus IDE",
+ .flags = IORESOURCE_IRQ,
+ .start = K_INT_GB_IDE,
+ .end = K_INT_GB_IDE,
+ },
+};
+
+static struct pata_platform_info pata_platform_data = {
+ .ioport_shift = SWARM_IDE_SHIFT,
+};
+
+static struct platform_device swarm_pata_device = {
+ .name = "pata_platform",
+ .id = -1,
+ .resource = swarm_pata_resource,
+ .num_resources = ARRAY_SIZE(swarm_pata_resource),
+ .dev = {
+ .platform_data = &pata_platform_data,
+ .coherent_dma_mask = ~0, /* grumble */
+ },
+};
+
+static int __init swarm_pata_init(void)
+{
+ u8 __iomem *base;
+ phys_t offset, size;
+ struct resource *r;
+
+ if (!SIBYTE_HAVE_IDE)
+ return -ENODEV;
+
+ base = ioremap(A_IO_EXT_BASE, 0x800);
+ offset = __raw_readq(base + R_IO_EXT_REG(R_IO_EXT_START_ADDR, IDE_CS));
+ size = __raw_readq(base + R_IO_EXT_REG(R_IO_EXT_MULT_SIZE, IDE_CS));
+ iounmap(base);
+
+ offset = G_IO_START_ADDR(offset) << S_IO_ADDRBASE;
+ size = (G_IO_MULT_SIZE(size) + 1) << S_IO_REGSIZE;
+ if (offset < A_PHYS_GENBUS || offset >= A_PHYS_GENBUS_END) {
+ pr_info(DRV_NAME ": PATA interface at GenBus disabled\n");
+
+ return -EBUSY;
+ }
+
+ pr_info(DRV_NAME ": PATA interface at GenBus slot %i\n", IDE_CS);
+
+ r = swarm_pata_resource;
+ r[0].start = offset + (SWARM_IDE_BASE << SWARM_IDE_SHIFT);
+ r[0].end = offset + ((SWARM_IDE_BASE + 8) << SWARM_IDE_SHIFT) - 1;
+ r[1].start = offset + (SWARM_IDE_CTRL << SWARM_IDE_SHIFT);
+ r[1].end = offset + ((SWARM_IDE_CTRL + 1) << SWARM_IDE_SHIFT) - 1;
+
+ return platform_device_register(&swarm_pata_device);
+}
+
+device_initcall(swarm_pata_init);
+++ /dev/null
-/*
- * Copyright (C) 2001, 2002, 2003 Broadcom Corporation
- * Copyright (C) 2004 MontaVista Software Inc.
- * Author: Manish Lachwani, mlachwani@mvista.com
- * Copyright (C) 2004 MIPS Technologies, Inc. All rights reserved.
- * Author: Maciej W. Rozycki <macro@mips.com>
- * Copyright (c) 2006, 2008 Maciej W. Rozycki
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-/*
- * Derived loosely from ide-pmac.c, so:
- * Copyright (C) 1998 Paul Mackerras.
- * Copyright (C) 1995-1998 Mark Lord
- */
-
-/*
- * Boards with SiByte processors so far have supported IDE devices via
- * the Generic Bus, PCI bus, and built-in PCMCIA interface. In all
- * cases, byte-swapping must be avoided for these devices (whereas
- * other PCI devices, for example, will require swapping). Any
- * SiByte-targetted kernel including IDE support will include this
- * file. Probing of a Generic Bus for an IDE device is controlled by
- * the definition of "SIBYTE_HAVE_IDE", which is provided by
- * <asm/sibyte/board.h> for Broadcom boards.
- */
-
-#include <linux/ide.h>
-#include <linux/ioport.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/platform_device.h>
-
-#include <asm/io.h>
-
-#include <asm/sibyte/board.h>
-#include <asm/sibyte/sb1250_genbus.h>
-#include <asm/sibyte/sb1250_regs.h>
-
-#define DRV_NAME "ide-swarm"
-
-static char swarm_ide_string[] = DRV_NAME;
-
-static struct resource swarm_ide_resource = {
- .name = "SWARM GenBus IDE",
- .flags = IORESOURCE_MEM,
-};
-
-static struct platform_device *swarm_ide_dev;
-
-static const struct ide_port_info swarm_port_info = {
- .name = DRV_NAME,
- .host_flags = IDE_HFLAG_MMIO | IDE_HFLAG_NO_DMA,
-};
-
-/*
- * swarm_ide_probe - if the board header indicates the existence of
- * Generic Bus IDE, allocate a HWIF for it.
- */
-static int __devinit swarm_ide_probe(struct device *dev)
-{
- u8 __iomem *base;
- struct ide_host *host;
- phys_t offset, size;
- int i, rc;
- hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL };
-
- if (!SIBYTE_HAVE_IDE)
- return -ENODEV;
-
- base = ioremap(A_IO_EXT_BASE, 0x800);
- offset = __raw_readq(base + R_IO_EXT_REG(R_IO_EXT_START_ADDR, IDE_CS));
- size = __raw_readq(base + R_IO_EXT_REG(R_IO_EXT_MULT_SIZE, IDE_CS));
- iounmap(base);
-
- offset = G_IO_START_ADDR(offset) << S_IO_ADDRBASE;
- size = (G_IO_MULT_SIZE(size) + 1) << S_IO_REGSIZE;
- if (offset < A_PHYS_GENBUS || offset >= A_PHYS_GENBUS_END) {
- printk(KERN_INFO DRV_NAME
- ": IDE interface at GenBus disabled\n");
- return -EBUSY;
- }
-
- printk(KERN_INFO DRV_NAME ": IDE interface at GenBus slot %i\n",
- IDE_CS);
-
- swarm_ide_resource.start = offset;
- swarm_ide_resource.end = offset + size - 1;
- if (request_resource(&iomem_resource, &swarm_ide_resource)) {
- printk(KERN_ERR DRV_NAME
- ": can't request I/O memory resource\n");
- return -EBUSY;
- }
-
- base = ioremap(offset, size);
-
- memset(&hw, 0, sizeof(hw));
- for (i = 0; i <= 7; i++)
- hw.io_ports_array[i] =
- (unsigned long)(base + ((0x1f0 + i) << 5));
- hw.io_ports.ctl_addr =
- (unsigned long)(base + (0x3f6 << 5));
- hw.irq = K_INT_GB_IDE;
- hw.chipset = ide_generic;
-
- rc = ide_host_add(&swarm_port_info, hws, &host);
- if (rc)
- goto err;
-
- dev_set_drvdata(dev, host);
-
- return 0;
-err:
- release_resource(&swarm_ide_resource);
- iounmap(base);
- return rc;
-}
-
-static struct device_driver swarm_ide_driver = {
- .name = swarm_ide_string,
- .bus = &platform_bus_type,
- .probe = swarm_ide_probe,
-};
-
-static void swarm_ide_platform_release(struct device *device)
-{
- struct platform_device *pldev;
-
- /* free device */
- pldev = to_platform_device(device);
- kfree(pldev);
-}
-
-static int __devinit swarm_ide_init_module(void)
-{
- struct platform_device *pldev;
- int err;
-
- printk(KERN_INFO "SWARM IDE driver\n");
-
- if (driver_register(&swarm_ide_driver)) {
- printk(KERN_ERR "Driver registration failed\n");
- err = -ENODEV;
- goto out;
- }
-
- if (!(pldev = kzalloc(sizeof (*pldev), GFP_KERNEL))) {
- err = -ENOMEM;
- goto out_unregister_driver;
- }
-
- pldev->name = swarm_ide_string;
- pldev->id = 0;
- pldev->dev.release = swarm_ide_platform_release;
-
- if (platform_device_register(pldev)) {
- err = -ENODEV;
- goto out_free_pldev;
- }
-
- if (!pldev->dev.driver) {
- /*
- * The driver was not bound to this device, there was
- * no hardware at this address. Unregister it, as the
- * release fuction will take care of freeing the
- * allocated structure
- */
- platform_device_unregister (pldev);
- }
-
- swarm_ide_dev = pldev;
-
- return 0;
-
-out_free_pldev:
- kfree(pldev);
-
-out_unregister_driver:
- driver_unregister(&swarm_ide_driver);
-out:
- return err;
-}
-
-module_init(swarm_ide_init_module);
projects / linux-2.6-microblaze.git / commitdiff