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path: root/drivers/ssb/main.c
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Diffstat (limited to 'drivers/ssb/main.c')
-rw-r--r--drivers/ssb/main.c260
1 files changed, 207 insertions, 53 deletions
diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c
index 8003a9e55ac..7cf8851286b 100644
--- a/drivers/ssb/main.c
+++ b/drivers/ssb/main.c
@@ -14,6 +14,7 @@
#include <linux/io.h>
#include <linux/ssb/ssb.h>
#include <linux/ssb/ssb_regs.h>
+#include <linux/ssb/ssb_driver_gige.h>
#include <linux/dma-mapping.h>
#include <linux/pci.h>
@@ -68,6 +69,44 @@ found:
}
#endif /* CONFIG_SSB_PCIHOST */
+#ifdef CONFIG_SSB_PCMCIAHOST
+struct ssb_bus *ssb_pcmcia_dev_to_bus(struct pcmcia_device *pdev)
+{
+ struct ssb_bus *bus;
+
+ ssb_buses_lock();
+ list_for_each_entry(bus, &buses, list) {
+ if (bus->bustype == SSB_BUSTYPE_PCMCIA &&
+ bus->host_pcmcia == pdev)
+ goto found;
+ }
+ bus = NULL;
+found:
+ ssb_buses_unlock();
+
+ return bus;
+}
+#endif /* CONFIG_SSB_PCMCIAHOST */
+
+int ssb_for_each_bus_call(unsigned long data,
+ int (*func)(struct ssb_bus *bus, unsigned long data))
+{
+ struct ssb_bus *bus;
+ int res;
+
+ ssb_buses_lock();
+ list_for_each_entry(bus, &buses, list) {
+ res = func(bus, data);
+ if (res >= 0) {
+ ssb_buses_unlock();
+ return res;
+ }
+ }
+ ssb_buses_unlock();
+
+ return -ENODEV;
+}
+
static struct ssb_device *ssb_device_get(struct ssb_device *dev)
{
if (dev)
@@ -81,35 +120,12 @@ static void ssb_device_put(struct ssb_device *dev)
put_device(dev->dev);
}
-static int ssb_bus_resume(struct ssb_bus *bus)
-{
- int err;
-
- ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 1);
- err = ssb_pcmcia_init(bus);
- if (err) {
- /* No need to disable XTAL, as we don't have one on PCMCIA. */
- return err;
- }
- ssb_chipco_resume(&bus->chipco);
-
- return 0;
-}
-
static int ssb_device_resume(struct device *dev)
{
struct ssb_device *ssb_dev = dev_to_ssb_dev(dev);
struct ssb_driver *ssb_drv;
- struct ssb_bus *bus;
int err = 0;
- bus = ssb_dev->bus;
- if (bus->suspend_cnt == bus->nr_devices) {
- err = ssb_bus_resume(bus);
- if (err)
- return err;
- }
- bus->suspend_cnt--;
if (dev->driver) {
ssb_drv = drv_to_ssb_drv(dev->driver);
if (ssb_drv && ssb_drv->resume)
@@ -121,27 +137,10 @@ out:
return err;
}
-static void ssb_bus_suspend(struct ssb_bus *bus, pm_message_t state)
-{
- ssb_chipco_suspend(&bus->chipco, state);
- ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 0);
-
- /* Reset HW state information in memory, so that HW is
- * completely reinitialized on resume. */
- bus->mapped_device = NULL;
-#ifdef CONFIG_SSB_DRIVER_PCICORE
- bus->pcicore.setup_done = 0;
-#endif
-#ifdef CONFIG_SSB_DEBUG
- bus->powered_up = 0;
-#endif
-}
-
static int ssb_device_suspend(struct device *dev, pm_message_t state)
{
struct ssb_device *ssb_dev = dev_to_ssb_dev(dev);
struct ssb_driver *ssb_drv;
- struct ssb_bus *bus;
int err = 0;
if (dev->driver) {
@@ -151,19 +150,46 @@ static int ssb_device_suspend(struct device *dev, pm_message_t state)
if (err)
goto out;
}
+out:
+ return err;
+}
+
+int ssb_bus_resume(struct ssb_bus *bus)
+{
+ int err;
+
+ /* Reset HW state information in memory, so that HW is
+ * completely reinitialized. */
+ bus->mapped_device = NULL;
+#ifdef CONFIG_SSB_DRIVER_PCICORE
+ bus->pcicore.setup_done = 0;
+#endif
- bus = ssb_dev->bus;
- bus->suspend_cnt++;
- if (bus->suspend_cnt == bus->nr_devices) {
- /* All devices suspended. Shutdown the bus. */
- ssb_bus_suspend(bus, state);
+ err = ssb_bus_powerup(bus, 0);
+ if (err)
+ return err;
+ err = ssb_pcmcia_hardware_setup(bus);
+ if (err) {
+ ssb_bus_may_powerdown(bus);
+ return err;
}
+ ssb_chipco_resume(&bus->chipco);
+ ssb_bus_may_powerdown(bus);
-out:
- return err;
+ return 0;
}
+EXPORT_SYMBOL(ssb_bus_resume);
-#ifdef CONFIG_SSB_PCIHOST
+int ssb_bus_suspend(struct ssb_bus *bus)
+{
+ ssb_chipco_suspend(&bus->chipco);
+ ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 0);
+
+ return 0;
+}
+EXPORT_SYMBOL(ssb_bus_suspend);
+
+#ifdef CONFIG_SSB_SPROM
int ssb_devices_freeze(struct ssb_bus *bus)
{
struct ssb_device *dev;
@@ -249,7 +275,7 @@ int ssb_devices_thaw(struct ssb_bus *bus)
return 0;
}
-#endif /* CONFIG_SSB_PCIHOST */
+#endif /* CONFIG_SSB_SPROM */
static void ssb_device_shutdown(struct device *dev)
{
@@ -378,7 +404,7 @@ void ssb_bus_unregister(struct ssb_bus *bus)
list_del(&bus->list);
ssb_buses_unlock();
- /* ssb_pcmcia_exit(bus); */
+ ssb_pcmcia_exit(bus);
ssb_pci_exit(bus);
ssb_iounmap(bus);
}
@@ -508,6 +534,14 @@ error:
return err;
}
+static u8 ssb_ssb_read8(struct ssb_device *dev, u16 offset)
+{
+ struct ssb_bus *bus = dev->bus;
+
+ offset += dev->core_index * SSB_CORE_SIZE;
+ return readb(bus->mmio + offset);
+}
+
static u16 ssb_ssb_read16(struct ssb_device *dev, u16 offset)
{
struct ssb_bus *bus = dev->bus;
@@ -524,6 +558,63 @@ static u32 ssb_ssb_read32(struct ssb_device *dev, u16 offset)
return readl(bus->mmio + offset);
}
+#ifdef CONFIG_SSB_BLOCKIO
+static void ssb_ssb_block_read(struct ssb_device *dev, void *buffer,
+ size_t count, u16 offset, u8 reg_width)
+{
+ struct ssb_bus *bus = dev->bus;
+ void __iomem *addr;
+
+ offset += dev->core_index * SSB_CORE_SIZE;
+ addr = bus->mmio + offset;
+
+ switch (reg_width) {
+ case sizeof(u8): {
+ u8 *buf = buffer;
+
+ while (count) {
+ *buf = __raw_readb(addr);
+ buf++;
+ count--;
+ }
+ break;
+ }
+ case sizeof(u16): {
+ __le16 *buf = buffer;
+
+ SSB_WARN_ON(count & 1);
+ while (count) {
+ *buf = (__force __le16)__raw_readw(addr);
+ buf++;
+ count -= 2;
+ }
+ break;
+ }
+ case sizeof(u32): {
+ __le32 *buf = buffer;
+
+ SSB_WARN_ON(count & 3);
+ while (count) {
+ *buf = (__force __le32)__raw_readl(addr);
+ buf++;
+ count -= 4;
+ }
+ break;
+ }
+ default:
+ SSB_WARN_ON(1);
+ }
+}
+#endif /* CONFIG_SSB_BLOCKIO */
+
+static void ssb_ssb_write8(struct ssb_device *dev, u16 offset, u8 value)
+{
+ struct ssb_bus *bus = dev->bus;
+
+ offset += dev->core_index * SSB_CORE_SIZE;
+ writeb(value, bus->mmio + offset);
+}
+
static void ssb_ssb_write16(struct ssb_device *dev, u16 offset, u16 value)
{
struct ssb_bus *bus = dev->bus;
@@ -540,12 +631,67 @@ static void ssb_ssb_write32(struct ssb_device *dev, u16 offset, u32 value)
writel(value, bus->mmio + offset);
}
+#ifdef CONFIG_SSB_BLOCKIO
+static void ssb_ssb_block_write(struct ssb_device *dev, const void *buffer,
+ size_t count, u16 offset, u8 reg_width)
+{
+ struct ssb_bus *bus = dev->bus;
+ void __iomem *addr;
+
+ offset += dev->core_index * SSB_CORE_SIZE;
+ addr = bus->mmio + offset;
+
+ switch (reg_width) {
+ case sizeof(u8): {
+ const u8 *buf = buffer;
+
+ while (count) {
+ __raw_writeb(*buf, addr);
+ buf++;
+ count--;
+ }
+ break;
+ }
+ case sizeof(u16): {
+ const __le16 *buf = buffer;
+
+ SSB_WARN_ON(count & 1);
+ while (count) {
+ __raw_writew((__force u16)(*buf), addr);
+ buf++;
+ count -= 2;
+ }
+ break;
+ }
+ case sizeof(u32): {
+ const __le32 *buf = buffer;
+
+ SSB_WARN_ON(count & 3);
+ while (count) {
+ __raw_writel((__force u32)(*buf), addr);
+ buf++;
+ count -= 4;
+ }
+ break;
+ }
+ default:
+ SSB_WARN_ON(1);
+ }
+}
+#endif /* CONFIG_SSB_BLOCKIO */
+
/* Ops for the plain SSB bus without a host-device (no PCI or PCMCIA). */
static const struct ssb_bus_ops ssb_ssb_ops = {
+ .read8 = ssb_ssb_read8,
.read16 = ssb_ssb_read16,
.read32 = ssb_ssb_read32,
+ .write8 = ssb_ssb_write8,
.write16 = ssb_ssb_write16,
.write32 = ssb_ssb_write32,
+#ifdef CONFIG_SSB_BLOCKIO
+ .block_read = ssb_ssb_block_read,
+ .block_write = ssb_ssb_block_write,
+#endif
};
static int ssb_fetch_invariants(struct ssb_bus *bus,
@@ -628,7 +774,7 @@ out:
err_dequeue:
list_del(&bus->list);
err_pcmcia_exit:
-/* ssb_pcmcia_exit(bus); */
+ ssb_pcmcia_exit(bus);
err_pci_exit:
ssb_pci_exit(bus);
err_unmap:
@@ -1010,9 +1156,9 @@ u32 ssb_dma_translation(struct ssb_device *dev)
{
switch (dev->bus->bustype) {
case SSB_BUSTYPE_SSB:
+ case SSB_BUSTYPE_PCMCIA:
return 0;
case SSB_BUSTYPE_PCI:
- case SSB_BUSTYPE_PCMCIA:
return SSB_PCI_DMA;
}
return 0;
@@ -1161,7 +1307,14 @@ static int __init ssb_modinit(void)
err = b43_pci_ssb_bridge_init();
if (err) {
ssb_printk(KERN_ERR "Broadcom 43xx PCI-SSB-bridge "
- "initialization failed");
+ "initialization failed\n");
+ /* don't fail SSB init because of this */
+ err = 0;
+ }
+ err = ssb_gige_init();
+ if (err) {
+ ssb_printk(KERN_ERR "SSB Broadcom Gigabit Ethernet "
+ "driver initialization failed\n");
/* don't fail SSB init because of this */
err = 0;
}
@@ -1175,6 +1328,7 @@ fs_initcall(ssb_modinit);
static void __exit ssb_modexit(void)
{
+ ssb_gige_exit();
b43_pci_ssb_bridge_exit();
bus_unregister(&ssb_bustype);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 14:03:18 +0000