diff --git a/arch/mips/sgi-ip22/ip22-platform.c b/arch/mips/sgi-ip22/ip22-platform.c
new file mode 100644
index 0000000..78b608d2
--- /dev/null
+++ b/arch/mips/sgi-ip22/ip22-platform.c
@@ -0,0 +1,177 @@
+#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);