1 files changed, 271 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/iseries/vpdinfo.c b/arch/powerpc/platforms/iseries/vpdinfo.c
new file mode 100644
index 000000000000..9c318849dee7
--- /dev/null
+++ b/arch/powerpc/platforms/iseries/vpdinfo.c
@@ -0,0 +1,271 @@
+/*
+ * This code gets the card location of the hardware
+ * Copyright (C) 2001  <Allan H Trautman> <IBM Corp>
+ * Copyright (C) 2005  Stephen Rothwel, IBM Corp
+ *
+ * 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
+ *
+ * Change Activity:
+ *   Created, Feb 2, 2001
+ *   Ported to ppc64, August 20, 2001
+ * End Change Activity
+ */
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+
+#include <asm/types.h>
+#include <asm/resource.h>
+#include <asm/abs_addr.h>
+#include <asm/pci-bridge.h>
+#include <asm/iSeries/HvTypes.h>
+
+#include "pci.h"
+#include "call_pci.h"
+
+/*
+ * Size of Bus VPD data
+ */
+#define BUS_VPDSIZE      1024
+
+/*
+ * Bus Vpd Tags
+ */
+#define  VpdEndOfAreaTag   0x79
+#define  VpdIdStringTag    0x82
+#define  VpdVendorAreaTag  0x84
+
+/*
+ * Mfg Area Tags
+ */
+#define  VpdFruFrameId    0x4649     // "FI"
+#define  VpdSlotMapFormat 0x4D46     // "MF"
+#define  VpdSlotMap       0x534D     // "SM"
+
+/*
+ * Structures of the areas
+ */
+struct MfgVpdAreaStruct {
+        u16 Tag;
+        u8  TagLength;
+        u8  AreaData1;
+        u8  AreaData2;
+};
+typedef struct MfgVpdAreaStruct MfgArea;
+#define MFG_ENTRY_SIZE   3
+
+struct SlotMapStruct {
+        u8   AgentId;
+        u8   SecondaryAgentId;
+        u8   PhbId;
+        char CardLocation[3];
+        char Parms[8];
+        char Reserved[2];
+};
+typedef struct SlotMapStruct SlotMap;
+#define SLOT_ENTRY_SIZE   16
+
+/*
+ * Parse the Slot Area
+ */
+static void __init iSeries_Parse_SlotArea(SlotMap *MapPtr, int MapLen,
+                HvAgentId agent, u8 *PhbId, char card[4])
+{
+        int SlotMapLen = MapLen;
+        SlotMap *SlotMapPtr = MapPtr;
+
+        /*
+         * Parse Slot label until we find the one requested
+         */
+        while (SlotMapLen > 0) {
+                if (SlotMapPtr->AgentId == agent) {
+                        /*
+                         * If Phb wasn't found, grab the entry first one found.
+                         */
+                        if (*PhbId == 0xff)
+                                *PhbId = SlotMapPtr->PhbId;
+                        /* Found it, extract the data. */
+                        if (SlotMapPtr->PhbId == *PhbId) {
+                                memcpy(card, &SlotMapPtr->CardLocation, 3);
+                                card[3]  = 0;
+                                break;
+                        }
+                }
+                /* Point to the next Slot */
+                SlotMapPtr = (SlotMap *)((char *)SlotMapPtr + SLOT_ENTRY_SIZE);
+                SlotMapLen -= SLOT_ENTRY_SIZE;
+        }
+}
+
+/*
+ * Parse the Mfg Area
+ */
+static void __init iSeries_Parse_MfgArea(u8 *AreaData, int AreaLen,
+                HvAgentId agent, u8 *PhbId,
+                u8 *frame, char card[4])
+{
+        MfgArea *MfgAreaPtr = (MfgArea *)AreaData;
+        int MfgAreaLen = AreaLen;
+        u16 SlotMapFmt = 0;
+
+        /* Parse Mfg Data */
+        while (MfgAreaLen > 0) {
+                int MfgTagLen = MfgAreaPtr->TagLength;
+                /* Frame ID         (FI 4649020310 ) */
+                if (MfgAreaPtr->Tag == VpdFruFrameId)           /* FI  */
+                        *frame = MfgAreaPtr->AreaData1;
+                /* Slot Map Format  (MF 4D46020004 ) */
+                else if (MfgAreaPtr->Tag == VpdSlotMapFormat)   /* MF  */
+                        SlotMapFmt = (MfgAreaPtr->AreaData1 * 256)
+                                + MfgAreaPtr->AreaData2;
+                /* Slot Map         (SM 534D90 */
+                else if (MfgAreaPtr->Tag == VpdSlotMap) {       /* SM  */
+                        SlotMap *SlotMapPtr;
+
+                        if (SlotMapFmt == 0x1004)
+                                SlotMapPtr = (SlotMap *)((char *)MfgAreaPtr
+                                                + MFG_ENTRY_SIZE + 1);
+                        else
+                                SlotMapPtr = (SlotMap *)((char *)MfgAreaPtr
+                                                + MFG_ENTRY_SIZE);
+                        iSeries_Parse_SlotArea(SlotMapPtr, MfgTagLen,
+                                        agent, PhbId, card);
+                }
+                /*
+                 * Point to the next Mfg Area
+                 * Use defined size, sizeof give wrong answer
+                 */
+                MfgAreaPtr = (MfgArea *)((char *)MfgAreaPtr + MfgTagLen
+                                + MFG_ENTRY_SIZE);
+                MfgAreaLen -= (MfgTagLen + MFG_ENTRY_SIZE);
+        }
+}
+
+/*
+ * Look for "BUS".. Data is not Null terminated.
+ * PHBID of 0xFF indicates PHB was not found in VPD Data.
+ */
+static int __init iSeries_Parse_PhbId(u8 *AreaPtr, int AreaLength)
+{
+        u8 *PhbPtr = AreaPtr;
+        int DataLen = AreaLength;
+        char PhbId = 0xFF;
+
+        while (DataLen > 0) {
+                if ((*PhbPtr == 'B') && (*(PhbPtr + 1) == 'U')
+                                && (*(PhbPtr + 2) == 'S')) {
+                        PhbPtr += 3;
+                        while (*PhbPtr == ' ')
+                                ++PhbPtr;
+                        PhbId = (*PhbPtr & 0x0F);
+                        break;
+                }
+                ++PhbPtr;
+                --DataLen;
+        }
+        return PhbId;
+}
+
+/*
+ * Parse out the VPD Areas
+ */
+static void __init iSeries_Parse_Vpd(u8 *VpdData, int VpdDataLen,
+                HvAgentId agent, u8 *frame, char card[4])
+{
+        u8 *TagPtr = VpdData;
+        int DataLen = VpdDataLen - 3;
+        u8 PhbId;
+
+        while ((*TagPtr != VpdEndOfAreaTag) && (DataLen > 0)) {
+                int AreaLen = *(TagPtr + 1) + (*(TagPtr + 2) * 256);
+                u8 *AreaData  = TagPtr + 3;
+
+                if (*TagPtr == VpdIdStringTag)
+                        PhbId = iSeries_Parse_PhbId(AreaData, AreaLen);
+                else if (*TagPtr == VpdVendorAreaTag)
+                        iSeries_Parse_MfgArea(AreaData, AreaLen,
+                                        agent, &PhbId, frame, card);
+                /* Point to next Area. */
+                TagPtr  = AreaData + AreaLen;
+                DataLen -= AreaLen;
+        }
+}
+
+static void __init iSeries_Get_Location_Code(u16 bus, HvAgentId agent,
+                u8 *frame, char card[4])
+{
+        int BusVpdLen = 0;
+        u8 *BusVpdPtr = kmalloc(BUS_VPDSIZE, GFP_KERNEL);
+
+        if (BusVpdPtr == NULL) {
+                printk("PCI: Bus VPD Buffer allocation failure.\n");
+                return;
+        }
+        BusVpdLen = HvCallPci_getBusVpd(bus, iseries_hv_addr(BusVpdPtr),
+                                        BUS_VPDSIZE);
+        if (BusVpdLen == 0) {
+                printk("PCI: Bus VPD Buffer zero length.\n");
+                goto out_free;
+        }
+        /* printk("PCI: BusVpdPtr: %p, %d\n",BusVpdPtr, BusVpdLen); */
+        /* Make sure this is what I think it is */
+        if (*BusVpdPtr != VpdIdStringTag) {     /* 0x82 */
+                printk("PCI: Bus VPD Buffer missing starting tag.\n");
+                goto out_free;
+        }
+        iSeries_Parse_Vpd(BusVpdPtr, BusVpdLen, agent, frame, card);
+out_free:
+        kfree(BusVpdPtr);
+}
+
+/*
+ * Prints the device information.
+ * - Pass in pci_dev* pointer to the device.
+ * - Pass in the device count
+ *
+ * Format:
+ * PCI: Bus  0, Device 26, Vendor 0x12AE  Frame  1, Card  C10  Ethernet
+ * controller
+ */
+void __init iSeries_Device_Information(struct pci_dev *PciDev, int count)
+{
+        struct device_node *DevNode = PciDev->sysdata;
+        struct pci_dn *pdn;
+        u16 bus;
+        u8 frame;
+        char card[4];
+        HvSubBusNumber subbus;
+        HvAgentId agent;
+
+        if (DevNode == NULL) {
+                printk("%d. PCI: iSeries_Device_Information DevNode is NULL\n",
+                                count);
+                return;
+        }
+
+        pdn = PCI_DN(DevNode);
+        bus = pdn->busno;
+        subbus = pdn->bussubno;
+        agent = ISERIES_PCI_AGENTID(ISERIES_GET_DEVICE_FROM_SUBBUS(subbus),
+                        ISERIES_GET_FUNCTION_FROM_SUBBUS(subbus));
+        iSeries_Get_Location_Code(bus, agent, &frame, card);
+
+        printk("%d. PCI: Bus%3d, Device%3d, Vendor %04X Frame%3d, Card %4s  ",
+                        count, bus, PCI_SLOT(PciDev->devfn), PciDev->vendor,
+                        frame, card);
+        printk("0x%04X\n", (int)(PciDev->class >> 8));
+}