1 files changed, 109 insertions, 0 deletions
diff --git a/drivers/parisc/hppb.c b/drivers/parisc/hppb.c
new file mode 100644
index 000000000000..e869c6020370
--- /dev/null
+++ b/drivers/parisc/hppb.c
@@ -0,0 +1,109 @@
+/*
+** hppb.c:
+**      HP-PB bus driver for the NOVA and K-Class systems.
+**
+**      (c) Copyright 2002 Ryan Bradetich
+**      (c) Copyright 2002 Hewlett-Packard Company
+**
+** 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 Driver currently only supports the console (port 0) on the MUX.
+** Additional work will be needed on this driver to enable the full
+** functionality of the MUX.
+**
+*/
+
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/ioport.h>
+
+#include <asm/io.h>
+#include <asm/hardware.h>
+#include <asm/parisc-device.h>
+
+#include <linux/pci.h>
+
+struct hppb_card {
+	unsigned long hpa;
+	struct resource mmio_region;
+	struct hppb_card *next;
+};
+
+struct hppb_card hppb_card_head = {
+	.hpa = 0,
+	.next = NULL,
+};
+
+#define IO_IO_LOW  offsetof(struct bc_module, io_io_low)
+#define IO_IO_HIGH offsetof(struct bc_module, io_io_high)
+
+/**
+ * hppb_probe - Determine if the hppb driver should claim this device.
+ * @dev: The device which has been found
+ *
+ * Determine if hppb driver should claim this chip (return 0) or not 
+ * (return 1). If so, initialize the chip and tell other partners in crime 
+ * they have work to do.
+ */
+static int hppb_probe(struct parisc_device *dev)
+{
+	int status;
+	struct hppb_card *card = &hppb_card_head;
+
+	while(card->next) {
+		card = card->next;
+	}
+
+	if(card->hpa) {
+		card->next = kmalloc(sizeof(struct hppb_card), GFP_KERNEL);
+		if(!card->next) {
+			printk(KERN_ERR "HP-PB: Unable to allocate memory.\n");
+			return 1;
+		}
+		memset(card->next, '\0', sizeof(struct hppb_card));
+		card = card->next;
+	}
+        printk(KERN_INFO "Found GeckoBoa at 0x%lx\n", dev->hpa);
+
+	card->hpa = dev->hpa;
+	card->mmio_region.name = "HP-PB Bus";
+	card->mmio_region.flags = IORESOURCE_MEM;
+
+	card->mmio_region.start = __raw_readl(dev->hpa + IO_IO_LOW);
+	card->mmio_region.end = __raw_readl(dev->hpa + IO_IO_HIGH) - 1;
+
+	status = ccio_request_resource(dev, &card->mmio_region);
+	if(status < 0) {
+		printk(KERN_ERR "%s: failed to claim HP-PB bus space (%08lx, %08lx)\n",
+			__FILE__, card->mmio_region.start, card->mmio_region.end);
+	}
+
+        return 0;
+}
+
+
+static struct parisc_device_id hppb_tbl[] = {
+        { HPHW_BCPORT, HVERSION_REV_ANY_ID, 0x500, 0xc }, 
+        { 0, }
+};
+
+static struct parisc_driver hppb_driver = {
+        .name =         "Gecko Boa",
+        .id_table =     hppb_tbl,
+	.probe =        hppb_probe,
+};
+
+/**
+ * hppb_init - HP-PB bus initalization procedure.
+ *
+ * Register this driver.   
+ */
+void __init hppb_init(void)
+{
+        register_parisc_driver(&hppb_driver);
+}