]> git.kernelconcepts.de Git - karo-tx-uboot.git/blobdiff - drivers/pci/pci.c
Merge branch 'master' of git://git.denx.de/u-boot-video
[karo-tx-uboot.git] / drivers / pci / pci.c
index 5f1f128126e0b54542a182c6d4a61f2c48590e01..d864f137f540764049148234361107357363dc69 100644 (file)
@@ -151,13 +151,14 @@ void pci_register_hose(struct pci_controller* hose)
        *phose = hose;
 }
 
-struct pci_controller *pci_bus_to_hose (int bus)
+struct pci_controller *pci_bus_to_hose(int bus)
 {
        struct pci_controller *hose;
 
-       for (hose = hose_head; hose; hose = hose->next)
+       for (hose = hose_head; hose; hose = hose->next) {
                if (bus >= hose->first_busno && bus <= hose->last_busno)
                        return hose;
+       }
 
        printf("pci_bus_to_hose() failed\n");
        return NULL;
@@ -196,21 +197,20 @@ pci_dev_t pci_find_devices(struct pci_device_id *ids, int index)
        pci_dev_t bdf;
        int i, bus, found_multi = 0;
 
-       for (hose = hose_head; hose; hose = hose->next)
-       {
+       for (hose = hose_head; hose; hose = hose->next) {
 #ifdef CONFIG_SYS_SCSI_SCAN_BUS_REVERSE
                for (bus = hose->last_busno; bus >= hose->first_busno; bus--)
 #else
                for (bus = hose->first_busno; bus <= hose->last_busno; bus++)
 #endif
-                       for (bdf = PCI_BDF(bus,0,0);
+                       for (bdf = PCI_BDF(bus, 0, 0);
 #if defined(CONFIG_ELPPC) || defined(CONFIG_PPMC7XX)
-                            bdf < PCI_BDF(bus,PCI_MAX_PCI_DEVICES-1,PCI_MAX_PCI_FUNCTIONS-1);
+                            bdf < PCI_BDF(bus, PCI_MAX_PCI_DEVICES - 1,
+                               PCI_MAX_PCI_FUNCTIONS - 1);
 #else
-                            bdf < PCI_BDF(bus+1,0,0);
+                            bdf < PCI_BDF(bus + 1, 0, 0);
 #endif
-                            bdf += PCI_BDF(0,0,1))
-                       {
+                            bdf += PCI_BDF(0, 0, 1)) {
                                if (!PCI_FUNC(bdf)) {
                                        pci_read_config_byte(bdf,
                                                             PCI_HEADER_TYPE,
@@ -229,19 +229,19 @@ pci_dev_t pci_find_devices(struct pci_device_id *ids, int index)
                                                     PCI_DEVICE_ID,
                                                     &device);
 
-                               for (i=0; ids[i].vendor != 0; i++)
+                               for (i = 0; ids[i].vendor != 0; i++) {
                                        if (vendor == ids[i].vendor &&
-                                           device == ids[i].device)
-                                       {
+                                           device == ids[i].device) {
                                                if (index <= 0)
                                                        return bdf;
 
                                                index--;
                                        }
+                               }
                        }
        }
 
-       return (-1);
+       return -1;
 }
 
 pci_dev_t pci_find_device(unsigned int vendor, unsigned int device, int index)
@@ -258,7 +258,7 @@ pci_dev_t pci_find_device(unsigned int vendor, unsigned int device, int index)
  *
  */
 
-int __pci_hose_phys_to_bus (struct pci_controller *hose,
+int __pci_hose_phys_to_bus(struct pci_controller *hose,
                                phys_addr_t phys_addr,
                                unsigned long flags,
                                unsigned long skip_mask,
@@ -297,12 +297,14 @@ pci_addr_t pci_hose_phys_to_bus (struct pci_controller *hose,
        int ret;
 
        if (!hose) {
-               puts ("pci_hose_phys_to_bus: invalid hose\n");
+               puts("pci_hose_phys_to_bus: invalid hose\n");
                return bus_addr;
        }
 
-       /* if PCI_REGION_MEM is set we do a two pass search with preference
-        * on matches that don't have PCI_REGION_SYS_MEMORY set */
+       /*
+        * if PCI_REGION_MEM is set we do a two pass search with preference
+        * on matches that don't have PCI_REGION_SYS_MEMORY set
+        */
        if ((flags & PCI_REGION_MEM) == PCI_REGION_MEM) {
                ret = __pci_hose_phys_to_bus(hose, phys_addr,
                                flags, PCI_REGION_SYS_MEMORY, &bus_addr);
@@ -313,12 +315,12 @@ pci_addr_t pci_hose_phys_to_bus (struct pci_controller *hose,
        ret = __pci_hose_phys_to_bus(hose, phys_addr, flags, 0, &bus_addr);
 
        if (ret)
-               puts ("pci_hose_phys_to_bus: invalid physical address\n");
+               puts("pci_hose_phys_to_bus: invalid physical address\n");
 
        return bus_addr;
 }
 
-int __pci_hose_bus_to_phys (struct pci_controller *hose,
+int __pci_hose_bus_to_phys(struct pci_controller *hose,
                                pci_addr_t bus_addr,
                                unsigned long flags,
                                unsigned long skip_mask,
@@ -354,12 +356,14 @@ phys_addr_t pci_hose_bus_to_phys(struct pci_controller* hose,
        int ret;
 
        if (!hose) {
-               puts ("pci_hose_bus_to_phys: invalid hose\n");
+               puts("pci_hose_bus_to_phys: invalid hose\n");
                return phys_addr;
        }
 
-       /* if PCI_REGION_MEM is set we do a two pass search with preference
-        * on matches that don't have PCI_REGION_SYS_MEMORY set */
+       /*
+        * if PCI_REGION_MEM is set we do a two pass search with preference
+        * on matches that don't have PCI_REGION_SYS_MEMORY set
+        */
        if ((flags & PCI_REGION_MEM) == PCI_REGION_MEM) {
                ret = __pci_hose_bus_to_phys(hose, bus_addr,
                                flags, PCI_REGION_SYS_MEMORY, &phys_addr);
@@ -370,7 +374,7 @@ phys_addr_t pci_hose_bus_to_phys(struct pci_controller* hose,
        ret = __pci_hose_bus_to_phys(hose, bus_addr, flags, 0, &phys_addr);
 
        if (ret)
-               puts ("pci_hose_bus_to_phys: invalid physical address\n");
+               puts("pci_hose_bus_to_phys: invalid physical address\n");
 
        return phys_addr;
 }
@@ -385,20 +389,21 @@ int pci_hose_config_device(struct pci_controller *hose,
                           pci_addr_t mem,
                           unsigned long command)
 {
-       unsigned int bar_response, old_command;
+       u32 bar_response;
+       unsigned int old_command;
        pci_addr_t bar_value;
        pci_size_t bar_size;
        unsigned char pin;
        int bar, found_mem64;
 
-       debug ("PCI Config: I/O=0x%lx, Memory=0x%llx, Command=0x%lx\n",
-               io, (u64)mem, command);
+       debug("PCI Config: I/O=0x%lx, Memory=0x%llx, Command=0x%lx\n", io,
+               (u64)mem, command);
 
-       pci_hose_write_config_dword (hose, dev, PCI_COMMAND, 0);
+       pci_hose_write_config_dword(hose, dev, PCI_COMMAND, 0);
 
        for (bar = PCI_BASE_ADDRESS_0; bar <= PCI_BASE_ADDRESS_5; bar += 4) {
-               pci_hose_write_config_dword (hose, dev, bar, 0xffffffff);
-               pci_hose_read_config_dword (hose, dev, bar, &bar_response);
+               pci_hose_write_config_dword(hose, dev, bar, 0xffffffff);
+               pci_hose_read_config_dword(hose, dev, bar, &bar_response);
 
                if (!bar_response)
                        continue;
@@ -418,8 +423,10 @@ int pci_hose_config_device(struct pci_controller *hose,
                                PCI_BASE_ADDRESS_MEM_TYPE_64) {
                                u32 bar_response_upper;
                                u64 bar64;
-                               pci_hose_write_config_dword(hose, dev, bar+4, 0xffffffff);
-                               pci_hose_read_config_dword(hose, dev, bar+4, &bar_response_upper);
+                               pci_hose_write_config_dword(hose, dev, bar + 4,
+                                       0xffffffff);
+                               pci_hose_read_config_dword(hose, dev, bar + 4,
+                                       &bar_response_upper);
 
                                bar64 = ((u64)bar_response_upper << 32) | bar_response;
 
@@ -442,27 +449,28 @@ int pci_hose_config_device(struct pci_controller *hose,
                if (found_mem64) {
                        bar += 4;
 #ifdef CONFIG_SYS_PCI_64BIT
-                       pci_hose_write_config_dword(hose, dev, bar, (u32)(bar_value>>32));
+                       pci_hose_write_config_dword(hose, dev, bar,
+                               (u32)(bar_value >> 32));
 #else
-                       pci_hose_write_config_dword (hose, dev, bar, 0x00000000);
+                       pci_hose_write_config_dword(hose, dev, bar, 0x00000000);
 #endif
                }
        }
 
        /* Configure Cache Line Size Register */
-       pci_hose_write_config_byte (hose, dev, PCI_CACHE_LINE_SIZE, 0x08);
+       pci_hose_write_config_byte(hose, dev, PCI_CACHE_LINE_SIZE, 0x08);
 
        /* Configure Latency Timer */
-       pci_hose_write_config_byte (hose, dev, PCI_LATENCY_TIMER, 0x80);
+       pci_hose_write_config_byte(hose, dev, PCI_LATENCY_TIMER, 0x80);
 
        /* Disable interrupt line, if device says it wants to use interrupts */
-       pci_hose_read_config_byte (hose, dev, PCI_INTERRUPT_PIN, &pin);
+       pci_hose_read_config_byte(hose, dev, PCI_INTERRUPT_PIN, &pin);
        if (pin != 0) {
-               pci_hose_write_config_byte (hose, dev, PCI_INTERRUPT_LINE, 0xff);
+               pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, 0xff);
        }
 
-       pci_hose_read_config_dword (hose, dev, PCI_COMMAND, &old_command);
-       pci_hose_write_config_dword (hose, dev, PCI_COMMAND,
+       pci_hose_read_config_dword(hose, dev, PCI_COMMAND, &old_command);
+       pci_hose_write_config_dword(hose, dev, PCI_COMMAND,
                                     (old_command & 0xffff0000) | command);
 
        return 0;
@@ -500,7 +508,8 @@ void pci_cfgfunc_config_device(struct pci_controller *hose,
                               pci_dev_t dev,
                               struct pci_config_table *entry)
 {
-       pci_hose_config_device(hose, dev, entry->priv[0], entry->priv[1], entry->priv[2]);
+       pci_hose_config_device(hose, dev, entry->priv[0], entry->priv[1],
+               entry->priv[2]);
 }
 
 void pci_cfgfunc_do_nothing(struct pci_controller *hose,
@@ -509,14 +518,10 @@ void pci_cfgfunc_do_nothing(struct pci_controller *hose,
 }
 
 /*
- *
- */
-
-/* HJF: Changed this to return int. I think this is required
+ * HJF: Changed this to return int. I think this is required
  * to get the correct result when scanning bridges
  */
 extern int pciauto_config_device(struct pci_controller *hose, pci_dev_t dev);
-extern void pciauto_config_init(struct pci_controller *hose);
 
 #if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI_SCAN_SHOW)
 const char * pci_class_str(u8 class)
@@ -619,10 +624,12 @@ int pci_print_dev(struct pci_controller *hose, pci_dev_t dev)
 
 int pci_hose_scan_bus(struct pci_controller *hose, int bus)
 {
-       unsigned int sub_bus, found_multi=0;
+       unsigned int sub_bus, found_multi = 0;
        unsigned short vendor, device, class;
        unsigned char header_type;
+#ifndef CONFIG_PCI_PNP
        struct pci_config_table *cfg;
+#endif
        pci_dev_t dev;
 #ifdef CONFIG_PCI_SCAN_SHOW
        static int indent = 0;
@@ -631,8 +638,9 @@ int pci_hose_scan_bus(struct pci_controller *hose, int bus)
        sub_bus = bus;
 
        for (dev =  PCI_BDF(bus,0,0);
-            dev <  PCI_BDF(bus,PCI_MAX_PCI_DEVICES-1,PCI_MAX_PCI_FUNCTIONS-1);
-            dev += PCI_BDF(0,0,1)) {
+            dev <  PCI_BDF(bus, PCI_MAX_PCI_DEVICES - 1,
+                               PCI_MAX_PCI_FUNCTIONS - 1);
+            dev += PCI_BDF(0, 0, 1)) {
 
                if (pci_skip_dev(hose, dev))
                        continue;
@@ -650,8 +658,8 @@ int pci_hose_scan_bus(struct pci_controller *hose, int bus)
                if (!PCI_FUNC(dev))
                        found_multi = header_type & 0x80;
 
-               debug ("PCI Scan: Found Bus %d, Device %d, Function %d\n",
-                       PCI_BUS(dev), PCI_DEV(dev), PCI_FUNC(dev) );
+               debug("PCI Scan: Found Bus %d, Device %d, Function %d\n",
+                       PCI_BUS(dev), PCI_DEV(dev), PCI_FUNC(dev));
 
                pci_hose_read_config_word(hose, dev, PCI_DEVICE_ID, &device);
                pci_hose_read_config_word(hose, dev, PCI_CLASS_DEVICE, &class);
@@ -669,18 +677,16 @@ int pci_hose_scan_bus(struct pci_controller *hose, int bus)
                }
 #endif
 
+#ifdef CONFIG_PCI_PNP
+               sub_bus = max(pciauto_config_device(hose, dev), sub_bus);
+#else
                cfg = pci_find_config(hose, class, vendor, device,
                                      PCI_BUS(dev), PCI_DEV(dev), PCI_FUNC(dev));
                if (cfg) {
                        cfg->config_device(hose, dev, cfg);
                        sub_bus = max(sub_bus, hose->current_busno);
-#ifdef CONFIG_PCI_PNP
-               } else {
-                       int n = pciauto_config_device(hose, dev);
-
-                       sub_bus = max(sub_bus, n);
-#endif
                }
+#endif
 
 #ifdef CONFIG_PCI_SCAN_SHOW
                indent--;
@@ -712,10 +718,11 @@ int pci_hose_scan(struct pci_controller *hose)
        }
 #endif /* CONFIG_PCI_BOOTDELAY */
 
-       /* Start scan at current_busno.
+       /*
+        * Start scan at current_busno.
         * PCIe will start scan at first_busno+1.
         */
-       /* For legacy support, ensure current>=first */
+       /* For legacy support, ensure current >= first */
        if (hose->first_busno > hose->current_busno)
                hose->current_busno = hose->first_busno;
 #ifdef CONFIG_PCI_PNP