Pull altix-fpga-reset into release branch

[sfrench/cifs-2.6.git] / arch / ia64 / sn / kernel / tiocx.c

diff --git a/arch/ia64/sn/kernel/tiocx.c b/arch/ia64/sn/kernel/tiocx.c
index 8716f4d5314b968f4b2e8df5cd5d7931db233426..e0819ec53116bfc477edd4e3ce46f4b2629415da 100644 (file)
--- a/arch/ia64/sn/kernel/tiocx.c
+++ b/arch/ia64/sn/kernel/tiocx.c
@@ -8,12 +8,12 @@
 
 #include <linux/module.h>
 #include <linux/kernel.h>
-#include <linux/version.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/proc_fs.h>
 #include <linux/device.h>
 #include <linux/delay.h>
+#include <asm/system.h>
 #include <asm/uaccess.h>
 #include <asm/sn/sn_sal.h>
 #include <asm/sn/addrs.h>
@@ -183,15 +183,16 @@ int cx_driver_unregister(struct cx_drv *cx_driver)
  * @part_num: device's part number
  * @mfg_num: device's manufacturer number
  * @hubdev: hub info associated with this device
+ * @bt: board type of the device
  *
  */
 int
 cx_device_register(nasid_t nasid, int part_num, int mfg_num,
-                  struct hubdev_info *hubdev)
+                  struct hubdev_info *hubdev, int bt)
 {
        struct cx_dev *cx_dev;
 
-       cx_dev = kcalloc(1, sizeof(struct cx_dev), GFP_KERNEL);
+       cx_dev = kzalloc(sizeof(struct cx_dev), GFP_KERNEL);
        DBG("cx_dev= 0x%p\n", cx_dev);
        if (cx_dev == NULL)
                return -ENOMEM;
@@ -200,6 +201,7 @@ cx_device_register(nasid_t nasid, int part_num, int mfg_num,
        cx_dev->cx_id.mfg_num = mfg_num;
        cx_dev->cx_id.nasid = nasid;
        cx_dev->hubdev = hubdev;
+       cx_dev->bt = bt;
 
        cx_dev->dev.parent = NULL;
        cx_dev->dev.bus = &tiocx_bus_type;
@@ -238,7 +240,8 @@ static int cx_device_reload(struct cx_dev *cx_dev)
 {
        cx_device_unregister(cx_dev);
        return cx_device_register(cx_dev->cx_id.nasid, cx_dev->cx_id.part_num,
-                                 cx_dev->cx_id.mfg_num, cx_dev->hubdev);
+                                 cx_dev->cx_id.mfg_num, cx_dev->hubdev,
+                                 cx_dev->bt);
 }
 
 static inline uint64_t tiocx_intr_alloc(nasid_t nasid, int widget,
@@ -365,26 +368,20 @@ static void tio_corelet_reset(nasid_t nasid, int corelet)
        udelay(2000);
 }
 
-static int tiocx_btchar_get(int nasid)
+static int is_fpga_tio(int nasid, int *bt)
 {
-       moduleid_t module_id;
-       geoid_t geoid;
-       int cnodeid;
-
-       cnodeid = nasid_to_cnodeid(nasid);
-       geoid = cnodeid_get_geoid(cnodeid);
-       module_id = geo_module(geoid);
-       return MODULE_GET_BTCHAR(module_id);
-}
+       int ioboard_type;
 
-static int is_fpga_brick(int nasid)
-{
-       switch (tiocx_btchar_get(nasid)) {
+       ioboard_type = ia64_sn_sysctl_ioboard_get(nasid);
+
+       switch (ioboard_type) {
        case L1_BRICKTYPE_SA:
        case L1_BRICKTYPE_ATHENA:
-       case L1_BRICKTYPE_DAYTONA:
+       case L1_BOARDTYPE_DAYTONA:
+               *bt = ioboard_type;
                return 1;
        }
+
        return 0;
 }
 
@@ -407,16 +404,22 @@ static int tiocx_reload(struct cx_dev *cx_dev)
 
        if (bitstream_loaded(nasid)) {
                uint64_t cx_id;
-
-               cx_id =
-                   *(volatile uint64_t *)(TIO_SWIN_BASE(nasid, TIOCX_CORELET) +
+               int rv;
+
+               rv = ia64_sn_sysctl_tio_clock_reset(nasid);
+               if (rv) {
+                       printk(KERN_ALERT "CX port JTAG reset failed.\n");
+               } else {
+                       cx_id = *(volatile uint64_t *)
+                               (TIO_SWIN_BASE(nasid, TIOCX_CORELET) +
                                          WIDGET_ID);
-               part_num = XWIDGET_PART_NUM(cx_id);
-               mfg_num = XWIDGET_MFG_NUM(cx_id);
-               DBG("part= 0x%x, mfg= 0x%x\n", part_num, mfg_num);
-               /* just ignore it if it's a CE */
-               if (part_num == TIO_CE_ASIC_PARTNUM)
-                       return 0;
+                       part_num = XWIDGET_PART_NUM(cx_id);
+                       mfg_num = XWIDGET_MFG_NUM(cx_id);
+                       DBG("part= 0x%x, mfg= 0x%x\n", part_num, mfg_num);
+                       /* just ignore it if it's a CE */
+                       if (part_num == TIO_CE_ASIC_PARTNUM)
+                               return 0;
+               }
        }
 
        cx_dev->cx_id.part_num = part_num;
@@ -436,10 +439,10 @@ static ssize_t show_cxdev_control(struct device *dev, struct device_attribute *a
 {
        struct cx_dev *cx_dev = to_cx_dev(dev);
 
-       return sprintf(buf, "0x%x 0x%x 0x%x %d\n",
+       return sprintf(buf, "0x%x 0x%x 0x%x 0x%x\n",
                       cx_dev->cx_id.nasid,
                       cx_dev->cx_id.part_num, cx_dev->cx_id.mfg_num,
-                      tiocx_btchar_get(cx_dev->cx_id.nasid));
+                      cx_dev->bt);
 }
 
 static ssize_t store_cxdev_control(struct device *dev, struct device_attribute *attr, const char *buf,
@@ -481,15 +484,19 @@ static int __init tiocx_init(void)
        cnodeid_t cnodeid;
        int found_tiocx_device = 0;
 
+       if (!ia64_platform_is("sn2"))
+               return -ENODEV;
+
        bus_register(&tiocx_bus_type);
 
        for (cnodeid = 0; cnodeid < MAX_COMPACT_NODES; cnodeid++) {
                nasid_t nasid;
+               int bt;
 
                if ((nasid = cnodeid_to_nasid(cnodeid)) < 0)
                        break;  /* No more nasids .. bail out of loop */
 
-               if ((nasid & 0x1) && is_fpga_brick(nasid)) {
+               if ((nasid & 0x1) && is_fpga_tio(nasid, &bt)) {
                        struct hubdev_info *hubdev;
                        struct xwidget_info *widgetp;
 
@@ -509,7 +516,7 @@ static int __init tiocx_init(void)
 
                        if (cx_device_register
                            (nasid, widgetp->xwi_hwid.part_num,
-                            widgetp->xwi_hwid.mfg_num, hubdev) < 0)
+                            widgetp->xwi_hwid.mfg_num, hubdev, bt) < 0)
                                return -ENXIO;
                        else
                                found_tiocx_device++;