1 files changed, 37 insertions, 39 deletions

diff --git a/drivers/bcma/main.c b/drivers/bcma/main.c
index 534e1337766d..38bde6eab8a4 100644
--- a/drivers/bcma/main.c
+++ b/drivers/bcma/main.c
@@ -268,6 +268,18 @@ void bcma_prepare_core(struct bcma_bus *bus, struct bcma_device *core)
 	}
 }
 
+void bcma_init_bus(struct bcma_bus *bus)
+{
+	mutex_lock(&bcma_buses_mutex);
+	bus->num = bcma_bus_next_num++;
+	mutex_unlock(&bcma_buses_mutex);
+
+	INIT_LIST_HEAD(&bus->cores);
+	bus->nr_cores = 0;
+
+	bcma_detect_chip(bus);
+}
+
 static void bcma_register_core(struct bcma_bus *bus, struct bcma_device *core)
 {
 	int err;
@@ -356,12 +368,19 @@ static void bcma_unregister_cores(struct bcma_bus *bus)
 	struct bcma_device *core, *tmp;
 
 	list_for_each_entry_safe(core, tmp, &bus->cores, list) {
+		if (!core->dev_registered)
+			continue;
 		list_del(&core->list);
-		if (core->dev_registered)
-			device_unregister(&core->dev);
+		device_unregister(&core->dev);
 	}
 	if (bus->hosttype == BCMA_HOSTTYPE_SOC)
 		platform_device_unregister(bus->drv_cc.watchdog);
+
+	/* Now noone uses internally-handled cores, we can free them */
+	list_for_each_entry_safe(core, tmp, &bus->cores, list) {
+		list_del(&core->list);
+		kfree(core);
+	}
 }
 
 int bcma_bus_register(struct bcma_bus *bus)
@@ -369,10 +388,6 @@ int bcma_bus_register(struct bcma_bus *bus)
 	int err;
 	struct bcma_device *core;
 
-	mutex_lock(&bcma_buses_mutex);
-	bus->num = bcma_bus_next_num++;
-	mutex_unlock(&bcma_buses_mutex);
-
 	/* Scan for devices (cores) */
 	err = bcma_bus_scan(bus);
 	if (err) {
@@ -387,6 +402,13 @@ int bcma_bus_register(struct bcma_bus *bus)
 		bcma_core_chipcommon_early_init(&bus->drv_cc);
 	}
 
+	/* Early init PCIE core */
+	core = bcma_find_core(bus, BCMA_CORE_PCIE);
+	if (core) {
+		bus->drv_pci[0].core = core;
+		bcma_core_pci_early_init(&bus->drv_pci[0]);
+	}
+
 	/* Cores providing flash access go before SPROM init */
 	list_for_each_entry(core, &bus->cores, list) {
 		if (bcma_is_core_needed_early(core->id.id))
@@ -459,7 +481,6 @@ int bcma_bus_register(struct bcma_bus *bus)
 
 void bcma_bus_unregister(struct bcma_bus *bus)
 {
-	struct bcma_device *cores[3];
 	int err;
 
 	err = bcma_gpio_unregister(&bus->drv_cc);
@@ -470,46 +491,23 @@ void bcma_bus_unregister(struct bcma_bus *bus)
 
 	bcma_core_chipcommon_b_free(&bus->drv_cc_b);
 
-	cores[0] = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
-	cores[1] = bcma_find_core(bus, BCMA_CORE_PCIE);
-	cores[2] = bcma_find_core(bus, BCMA_CORE_4706_MAC_GBIT_COMMON);
-
 	bcma_unregister_cores(bus);
-
-	kfree(cores[2]);
-	kfree(cores[1]);
-	kfree(cores[0]);
 }
 
-int __init bcma_bus_early_register(struct bcma_bus *bus,
-				   struct bcma_device *core_cc,
-				   struct bcma_device *core_mips)
+/*
+ * This is a special version of bus registration function designed for SoCs.
+ * It scans bus and performs basic initialization of main cores only.
+ * Please note it requires memory allocation, however it won't try to sleep.
+ */
+int __init bcma_bus_early_register(struct bcma_bus *bus)
 {
 	int err;
 	struct bcma_device *core;
-	struct bcma_device_id match;
 
-	match.manuf = BCMA_MANUF_BCM;
-	match.id = bcma_cc_core_id(bus);
-	match.class = BCMA_CL_SIM;
-	match.rev = BCMA_ANY_REV;
-
-	/* Scan for chip common core */
-	err = bcma_bus_scan_early(bus, &match, core_cc);
-	if (err) {
-		bcma_err(bus, "Failed to scan for common core: %d\n", err);
-		return -1;
-	}
-
-	match.manuf = BCMA_MANUF_MIPS;
-	match.id = BCMA_CORE_MIPS_74K;
-	match.class = BCMA_CL_SIM;
-	match.rev = BCMA_ANY_REV;
-
-	/* Scan for mips core */
-	err = bcma_bus_scan_early(bus, &match, core_mips);
+	/* Scan for devices (cores) */
+	err = bcma_bus_scan(bus);
 	if (err) {
-		bcma_err(bus, "Failed to scan for mips core: %d\n", err);
+		bcma_err(bus, "Failed to scan bus: %d\n", err);
 		return -1;
 	}