Convert SGI IP22 and specific drivers to platform_device.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/sgi-ip22/Makefile

@@ -4,6 +4,6 @@
 #
 
 obj-y	+= ip22-mc.o ip22-hpc.o ip22-int.o ip22-berr.o \
-	   ip22-time.o ip22-nvram.o ip22-reset.o ip22-setup.o
+	   ip22-time.o ip22-nvram.o ip22-platform.o ip22-reset.o ip22-setup.o
 
 obj-$(CONFIG_EISA)	+= ip22-eisa.o

arch/mips/sgi-ip22/ip22-platform.c

+#include <linux/init.h>
+#include <linux/if_ether.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+
+#include <asm/paccess.h>
+#include <asm/sgi/ip22.h>
+#include <asm/sgi/hpc3.h>
+#include <asm/sgi/mc.h>
+#include <asm/sgi/seeq.h>
+#include <asm/sgi/wd.h>
+
+static struct resource sgiwd93_0_resources[] = {
+	{
+		.name	= "eth0 irq",
+		.start	= SGI_WD93_0_IRQ,
+		.end	= SGI_WD93_0_IRQ,
+		.flags	= IORESOURCE_IRQ
+	}
+};
+
+static struct sgiwd93_platform_data sgiwd93_0_pd = {
+	.unit	= 0,
+	.irq	= SGI_WD93_0_IRQ,
+};
+
+static struct platform_device sgiwd93_0_device = {
+	.name		= "sgiwd93",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(sgiwd93_0_resources),
+	.resource	= sgiwd93_0_resources,
+	.dev = {
+		.platform_data = &sgiwd93_0_pd,
+	},
+};
+
+static struct resource sgiwd93_1_resources[] = {
+	{
+		.name	= "eth0 irq",
+		.start	= SGI_WD93_1_IRQ,
+		.end	= SGI_WD93_1_IRQ,
+		.flags	= IORESOURCE_IRQ
+	}
+};
+
+static struct sgiwd93_platform_data sgiwd93_1_pd = {
+	.unit	= 1,
+	.irq	= SGI_WD93_1_IRQ,
+};
+
+static struct platform_device sgiwd93_1_device = {
+	.name		= "sgiwd93",
+	.id		= 1,
+	.num_resources	= ARRAY_SIZE(sgiwd93_1_resources),
+	.resource	= sgiwd93_1_resources,
+	.dev = {
+		.platform_data = &sgiwd93_1_pd,
+	},
+};
+
+/*
+ * Create a platform device for the GPI port that receives the
+ * image data from the embedded camera.
+ */
+static int __init sgiwd93_devinit(void)
+{
+	int res;
+
+	sgiwd93_0_pd.hregs	= &hpc3c0->scsi_chan0;
+	sgiwd93_0_pd.wdregs	= (unsigned char *) hpc3c0->scsi0_ext;
+
+	res = platform_device_register(&sgiwd93_0_device);
+	if (res)
+		return res;
+
+	if (!ip22_is_fullhouse())
+		return 0;
+
+	sgiwd93_1_pd.hregs	= &hpc3c0->scsi_chan1;
+	sgiwd93_1_pd.wdregs	= (unsigned char *) hpc3c0->scsi1_ext;
+
+	return platform_device_register(&sgiwd93_1_device);
+}
+
+device_initcall(sgiwd93_devinit);
+
+static struct resource sgiseeq_0_resources[] = {
+	{
+		.name	= "eth0 irq",
+		.start	= SGI_ENET_IRQ,
+		.end	= SGI_ENET_IRQ,
+		.flags	= IORESOURCE_IRQ
+	}
+};
+
+static struct sgiseeq_platform_data eth0_pd;
+
+static struct platform_device eth0_device = {
+	.name		= "sgiseeq",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(sgiseeq_0_resources),
+	.resource	= sgiseeq_0_resources,
+	.dev = {
+		.platform_data = &eth0_pd,
+	},
+};
+
+static struct resource sgiseeq_1_resources[] = {
+	{
+		.name	= "eth1 irq",
+		.start	= SGI_GIO_0_IRQ,
+		.end	= SGI_GIO_0_IRQ,
+		.flags	= IORESOURCE_IRQ
+	}
+};
+
+static struct sgiseeq_platform_data eth1_pd;
+
+static struct platform_device eth1_device = {
+	.name		= "sgiseeq",
+	.id		= 1,
+	.num_resources	= ARRAY_SIZE(sgiseeq_1_resources),
+	.resource	= sgiseeq_1_resources,
+	.dev = {
+		.platform_data = &eth1_pd,
+	},
+};
+
+/*
+ * Create a platform device for the GPI port that receives the
+ * image data from the embedded camera.
+ */
+static int __init sgiseeq_devinit(void)
+{
+	unsigned int tmp;
+	int res, i;
+
+	eth0_pd.hpc = hpc3c0;
+	eth0_pd.irq = SGI_ENET_IRQ;
+#define EADDR_NVOFS     250
+	for (i = 0; i < 3; i++) {
+		unsigned short tmp = ip22_nvram_read(EADDR_NVOFS / 2 + i);
+
+		eth0_pd.mac[2 * i]     = tmp >> 8;
+		eth0_pd.mac[2 * i + 1] = tmp & 0xff;
+	}
+
+	res = platform_device_register(&eth0_device);
+	if (res)
+		return res;
+
+	/* Second HPC is missing? */
+	if (ip22_is_fullhouse() ||
+	    !get_dbe(tmp, (unsigned int *)&hpc3c1->pbdma[1]))
+		return 0;
+
+	sgimc->giopar |= SGIMC_GIOPAR_MASTEREXP1 | SGIMC_GIOPAR_EXP164 |
+	                 SGIMC_GIOPAR_HPC264;
+	hpc3c1->pbus_piocfg[0][0] = 0x3ffff;
+	/* interrupt/config register on Challenge S Mezz board */
+	hpc3c1->pbus_extregs[0][0] = 0x30;
+
+	eth1_pd.hpc = hpc3c1;
+	eth1_pd.irq = SGI_GIO_0_IRQ;
+#define EADDR_NVOFS     250
+	for (i = 0; i < 3; i++) {
+		unsigned short tmp = ip22_eeprom_read(&hpc3c1->eeprom,
+		                                      EADDR_NVOFS / 2 + i);
+
+		eth1_pd.mac[2 * i]     = tmp >> 8;
+		eth1_pd.mac[2 * i + 1] = tmp & 0xff;
+	}
+
+	return platform_device_register(&eth1_device);
+}
+
+device_initcall(sgiseeq_devinit);

drivers/net/sgiseeq.c

@@ -16,11 +16,13 @@
 #include <linux/string.h>
 #include <linux/delay.h>
 #include <linux/netdevice.h>
+#include <linux/platform_device.h>
 #include <linux/etherdevice.h>
 #include <linux/skbuff.h>
 
 #include <asm/sgi/hpc3.h>
 #include <asm/sgi/ip22.h>
+#include <asm/sgi/seeq.h>
 
 #include "sgiseeq.h"
 
@@ -92,13 +94,9 @@ struct sgiseeq_private {
 
 	struct net_device_stats stats;
 
-	struct net_device *next_module;
 	spinlock_t tx_lock;
 };
 
-/* A list of all installed seeq devices, for removing the driver module. */
-static struct net_device *root_sgiseeq_dev;
-
 static inline void hpc3_eth_reset(struct hpc3_ethregs *hregs)
 {
 	hregs->reset = HPC3_ERST_CRESET | HPC3_ERST_CLRIRQ;
@@ -624,9 +622,12 @@ static inline void setup_rx_ring(struct sgiseeq_rx_desc *buf, int nbufs)
 
 #define ALIGNED(x)  ((((unsigned long)(x)) + 0xf) & ~(0xf))
 
-static int sgiseeq_init(struct hpc3_regs* hpcregs, int irq, int has_eeprom)
+static int __init sgiseeq_probe(struct platform_device *pdev)
 {
+	struct sgiseeq_platform_data *pd = pdev->dev.platform_data;
+	struct hpc3_regs *hpcregs = pd->hpc;
 	struct sgiseeq_init_block *sr;
+	unsigned int irq = pd->irq;
 	struct sgiseeq_private *sp;
 	struct net_device *dev;
 	int err, i;
@@ -637,6 +638,8 @@ static int sgiseeq_init(struct hpc3_regs* hpcregs, int irq, int has_eeprom)
 		err = -ENOMEM;
 		goto err_out;
 	}
+
+	platform_set_drvdata(pdev, dev);
 	sp = netdev_priv(dev);
 
 	/* Make private data page aligned */
@@ -648,15 +651,7 @@ static int sgiseeq_init(struct hpc3_regs* hpcregs, int irq, int has_eeprom)
 	}
 	sp->srings = sr;
 
-#define EADDR_NVOFS     250
-	for (i = 0; i < 3; i++) {
-		unsigned short tmp = has_eeprom ?
-			ip22_eeprom_read(&hpcregs->eeprom, EADDR_NVOFS / 2+i) :
-			ip22_nvram_read(EADDR_NVOFS / 2+i);
-
-		dev->dev_addr[2 * i]     = tmp >> 8;
-		dev->dev_addr[2 * i + 1] = tmp & 0xff;
-	}
+	memcpy(dev->dev_addr, pd->mac, ETH_ALEN);
 
 #ifdef DEBUG
 	gpriv = sp;
@@ -720,9 +715,6 @@ static int sgiseeq_init(struct hpc3_regs* hpcregs, int irq, int has_eeprom)
 	for (i = 0; i < 6; i++)
 		printk("%2.2x%c", dev->dev_addr[i], i == 5 ? '\n' : ':');
 
-	sp->next_module = root_sgiseeq_dev;
-	root_sgiseeq_dev = dev;
-
 	return 0;
 
 err_out_free_page:
@@ -734,43 +726,42 @@ err_out:
 	return err;
 }
 
-static int __init sgiseeq_probe(void)
-{
-	unsigned int tmp, ret1, ret2 = 0;
-
-	/* On board adapter on 1st HPC is always present */
-	ret1 = sgiseeq_init(hpc3c0, SGI_ENET_IRQ, 0);
-	/* Let's see if second HPC is there */
-	if (!(ip22_is_fullhouse()) &&
-	    get_dbe(tmp, (unsigned int *)&hpc3c1->pbdma[1]) == 0) {
-		sgimc->giopar |= SGIMC_GIOPAR_MASTEREXP1 |
-				 SGIMC_GIOPAR_EXP164 |
-				 SGIMC_GIOPAR_HPC264;
-		hpc3c1->pbus_piocfg[0][0] = 0x3ffff;
-		/* interrupt/config register on Challenge S Mezz board */
-		hpc3c1->pbus_extregs[0][0] = 0x30;
-		ret2 = sgiseeq_init(hpc3c1, SGI_GIO_0_IRQ, 1);
-	}
-
-	return (ret1 & ret2) ? ret1 : 0;
-}
-
-static void __exit sgiseeq_exit(void)
+static void __exit sgiseeq_remove(struct platform_device *pdev)
 {
-	struct net_device *next, *dev;
-	struct sgiseeq_private *sp;
+	struct net_device *dev = platform_get_drvdata(pdev);
+	struct sgiseeq_private *sp = netdev_priv(dev);
 
-	for (dev = root_sgiseeq_dev; dev; dev = next) {
-		sp = (struct sgiseeq_private *) netdev_priv(dev);
-		next = sp->next_module;
 	unregister_netdev(dev);
 	free_page((unsigned long) sp->srings);
 	free_netdev(dev);
+	platform_set_drvdata(pdev, NULL);
+}
+
+static struct platform_driver sgiseeq_driver = {
+	.probe	= sgiseeq_probe,
+	.remove	= __devexit_p(sgiseeq_remove),
+	.driver = {
+		.name	= "sgiseeq"
+	}
+};
+
+static int __init sgiseeq_module_init(void)
+{
+	if (platform_driver_register(&sgiseeq_driver)) {
+		printk(KERN_ERR "Driver registration failed\n");
+		return -ENODEV;
 	}
+
+	return 0;
+}
+
+static void __exit sgiseeq_module_exit(void)
+{
+	platform_driver_unregister(&sgiseeq_driver);
 }
 
-module_init(sgiseeq_probe);
-module_exit(sgiseeq_exit);
+module_init(sgiseeq_module_init);
+module_exit(sgiseeq_module_exit);
 
 MODULE_DESCRIPTION("SGI Seeq 8003 driver");
 MODULE_AUTHOR("Linux/MIPS Mailing List <linux-mips@linux-mips.org>");

include/asm-mips/sgi/seeq.h

+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2007 by Ralf Baechle
+ */
+#ifndef __ASM_SGI_SEEQ_H
+#define __ASM_SGI_SEEQ_H
+
+#include <linux/if_ether.h>
+
+#include <asm/sgi/hpc3.h>
+
+struct sgiseeq_platform_data {
+	struct hpc3_regs *hpc;
+	unsigned int irq;
+	unsigned char mac[ETH_ALEN];
+};
+
+#endif /* __ASM_SGI_SEEQ_H */

include/asm-mips/sgi/wd.h

+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2007 by Ralf Baechle
+ */
+#ifndef __ASM_SGI_WD_H
+#define __ASM_SGI_WD_H
+
+#include <asm/sgi/hpc3.h>
+
+struct sgiwd93_platform_data {
+	unsigned int unit;
+	unsigned int irq;
+	struct hpc3_scsiregs *hregs;
+	unsigned char *wdregs;
+};
+
+#endif /* __ASM_SGI_WD_H */