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path: root/drivers/bcma/main.c
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Diffstat (limited to 'drivers/bcma/main.c')
-rw-r--r--drivers/bcma/main.c150
1 files changed, 117 insertions, 33 deletions
diff --git a/drivers/bcma/main.c b/drivers/bcma/main.c
index 0ff8d58831ef..d1656c2f70af 100644
--- a/drivers/bcma/main.c
+++ b/drivers/bcma/main.c
@@ -10,6 +10,7 @@
#include <linux/platform_device.h>
#include <linux/bcma/bcma.h>
#include <linux/slab.h>
+#include <linux/of_address.h>
MODULE_DESCRIPTION("Broadcom's specific AMBA driver");
MODULE_LICENSE("GPL");
@@ -120,16 +121,103 @@ static void bcma_release_core_dev(struct device *dev)
kfree(core);
}
-static int bcma_register_cores(struct bcma_bus *bus)
+static bool bcma_is_core_needed_early(u16 core_id)
+{
+ switch (core_id) {
+ case BCMA_CORE_NS_NAND:
+ case BCMA_CORE_NS_QSPI:
+ return true;
+ }
+
+ return false;
+}
+
+#ifdef CONFIG_OF
+static struct device_node *bcma_of_find_child_device(struct platform_device *parent,
+ struct bcma_device *core)
+{
+ struct device_node *node;
+ u64 size;
+ const __be32 *reg;
+
+ if (!parent || !parent->dev.of_node)
+ return NULL;
+
+ for_each_child_of_node(parent->dev.of_node, node) {
+ reg = of_get_address(node, 0, &size, NULL);
+ if (!reg)
+ continue;
+ if (of_translate_address(node, reg) == core->addr)
+ return node;
+ }
+ return NULL;
+}
+
+static void bcma_of_fill_device(struct platform_device *parent,
+ struct bcma_device *core)
+{
+ struct device_node *node;
+
+ node = bcma_of_find_child_device(parent, core);
+ if (node)
+ core->dev.of_node = node;
+}
+#else
+static void bcma_of_fill_device(struct platform_device *parent,
+ struct bcma_device *core)
+{
+}
+#endif /* CONFIG_OF */
+
+static void bcma_register_core(struct bcma_bus *bus, struct bcma_device *core)
+{
+ int err;
+
+ core->dev.release = bcma_release_core_dev;
+ core->dev.bus = &bcma_bus_type;
+ dev_set_name(&core->dev, "bcma%d:%d", bus->num, core->core_index);
+
+ switch (bus->hosttype) {
+ case BCMA_HOSTTYPE_PCI:
+ core->dev.parent = &bus->host_pci->dev;
+ core->dma_dev = &bus->host_pci->dev;
+ core->irq = bus->host_pci->irq;
+ break;
+ case BCMA_HOSTTYPE_SOC:
+ core->dev.dma_mask = &core->dev.coherent_dma_mask;
+ if (bus->host_pdev) {
+ core->dma_dev = &bus->host_pdev->dev;
+ core->dev.parent = &bus->host_pdev->dev;
+ bcma_of_fill_device(bus->host_pdev, core);
+ } else {
+ core->dma_dev = &core->dev;
+ }
+ break;
+ case BCMA_HOSTTYPE_SDIO:
+ break;
+ }
+
+ err = device_register(&core->dev);
+ if (err) {
+ bcma_err(bus, "Could not register dev for core 0x%03X\n",
+ core->id.id);
+ put_device(&core->dev);
+ return;
+ }
+ core->dev_registered = true;
+}
+
+static int bcma_register_devices(struct bcma_bus *bus)
{
struct bcma_device *core;
- int err, dev_id = 0;
+ int err;
list_for_each_entry(core, &bus->cores, list) {
/* We support that cores ourself */
switch (core->id.id) {
case BCMA_CORE_4706_CHIPCOMMON:
case BCMA_CORE_CHIPCOMMON:
+ case BCMA_CORE_NS_CHIPCOMMON_B:
case BCMA_CORE_PCI:
case BCMA_CORE_PCIE:
case BCMA_CORE_PCIE2:
@@ -138,39 +226,16 @@ static int bcma_register_cores(struct bcma_bus *bus)
continue;
}
+ /* Early cores were already registered */
+ if (bcma_is_core_needed_early(core->id.id))
+ continue;
+
/* Only first GMAC core on BCM4706 is connected and working */
if (core->id.id == BCMA_CORE_4706_MAC_GBIT &&
core->core_unit > 0)
continue;
- core->dev.release = bcma_release_core_dev;
- core->dev.bus = &bcma_bus_type;
- dev_set_name(&core->dev, "bcma%d:%d", bus->num, dev_id);
-
- switch (bus->hosttype) {
- case BCMA_HOSTTYPE_PCI:
- core->dev.parent = &bus->host_pci->dev;
- core->dma_dev = &bus->host_pci->dev;
- core->irq = bus->host_pci->irq;
- break;
- case BCMA_HOSTTYPE_SOC:
- core->dev.dma_mask = &core->dev.coherent_dma_mask;
- core->dma_dev = &core->dev;
- break;
- case BCMA_HOSTTYPE_SDIO:
- break;
- }
-
- err = device_register(&core->dev);
- if (err) {
- bcma_err(bus,
- "Could not register dev for core 0x%03X\n",
- core->id.id);
- put_device(&core->dev);
- continue;
- }
- core->dev_registered = true;
- dev_id++;
+ bcma_register_core(bus, core);
}
#ifdef CONFIG_BCMA_DRIVER_MIPS
@@ -247,6 +312,12 @@ int bcma_bus_register(struct bcma_bus *bus)
bcma_core_chipcommon_early_init(&bus->drv_cc);
}
+ /* 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))
+ bcma_register_core(bus, core);
+ }
+
/* Try to get SPROM */
err = bcma_sprom_get(bus);
if (err == -ENOENT) {
@@ -261,6 +332,13 @@ int bcma_bus_register(struct bcma_bus *bus)
bcma_core_chipcommon_init(&bus->drv_cc);
}
+ /* Init CC core */
+ core = bcma_find_core(bus, BCMA_CORE_NS_CHIPCOMMON_B);
+ if (core) {
+ bus->drv_cc_b.core = core;
+ bcma_core_chipcommon_b_init(&bus->drv_cc_b);
+ }
+
/* Init MIPS core */
core = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
if (core) {
@@ -297,7 +375,7 @@ int bcma_bus_register(struct bcma_bus *bus)
}
/* Register found cores */
- bcma_register_cores(bus);
+ bcma_register_devices(bus);
bcma_info(bus, "Bus registered\n");
@@ -315,6 +393,8 @@ void bcma_bus_unregister(struct bcma_bus *bus)
else if (err)
bcma_err(bus, "Can not unregister GPIO driver: %i\n", err);
+ 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);
@@ -334,8 +414,6 @@ int __init bcma_bus_early_register(struct bcma_bus *bus,
struct bcma_device *core;
struct bcma_device_id match;
- bcma_init_bus(bus);
-
match.manuf = BCMA_MANUF_BCM;
match.id = bcma_cc_core_id(bus);
match.class = BCMA_CL_SIM;
@@ -494,6 +572,11 @@ static int __init bcma_modinit(void)
if (err)
return err;
+ err = bcma_host_soc_register_driver();
+ if (err) {
+ pr_err("SoC host initialization failed\n");
+ err = 0;
+ }
#ifdef CONFIG_BCMA_HOST_PCI
err = bcma_host_pci_init();
if (err) {
@@ -511,6 +594,7 @@ static void __exit bcma_modexit(void)
#ifdef CONFIG_BCMA_HOST_PCI
bcma_host_pci_exit();
#endif
+ bcma_host_soc_unregister_driver();
bus_unregister(&bcma_bus_type);
}
module_exit(bcma_modexit)
generated by cgit v1.2.3-58-ga151 (git 2.39.0) at 2024-11-24 01:31:50 +0000