[SSB]: add Sonics Silicon Backplane bus support

SSB is an SoC bus used in a number of embedded devices.  The most
well-known of these devices is probably the Linksys WRT54G, but there
are others as well.  The bus is also used internally on the BCM43xx
and BCM44xx devices from Broadcom.

This patch also includes support for SSB ID tables in modules, so
that SSB drivers can be loaded automatically.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 136 insertions, 0 deletions

diff --git a/drivers/ssb/ssb_private.h b/drivers/ssb/ssb_private.h
new file mode 100644
index 000000000000..a789364264a6
--- /dev/null
+++ b/drivers/ssb/ssb_private.h
@@ -0,0 +1,136 @@
+#ifndef LINUX_SSB_PRIVATE_H_
+#define LINUX_SSB_PRIVATE_H_
+
+#include <linux/ssb/ssb.h>
+#include <linux/types.h>
+
+
+#define PFX	"ssb: "
+
+#ifdef CONFIG_SSB_SILENT
+# define ssb_printk(fmt, x...)	do { /* nothing */ } while (0)
+#else
+# define ssb_printk		printk
+#endif /* CONFIG_SSB_SILENT */
+
+/* dprintk: Debugging printk; vanishes for non-debug compilation */
+#ifdef CONFIG_SSB_DEBUG
+# define ssb_dprintk(fmt, x...)	ssb_printk(fmt , ##x)
+#else
+# define ssb_dprintk(fmt, x...)	do { /* nothing */ } while (0)
+#endif
+
+#ifdef CONFIG_SSB_DEBUG
+# define SSB_WARN_ON(x)		WARN_ON(x)
+# define SSB_BUG_ON(x)		BUG_ON(x)
+#else
+static inline int __ssb_do_nothing(int x) { return x; }
+# define SSB_WARN_ON(x)		__ssb_do_nothing(unlikely(!!(x)))
+# define SSB_BUG_ON(x)		__ssb_do_nothing(unlikely(!!(x)))
+#endif
+
+
+/* pci.c */
+#ifdef CONFIG_SSB_PCIHOST
+extern int ssb_pci_switch_core(struct ssb_bus *bus,
+			       struct ssb_device *dev);
+extern int ssb_pci_switch_coreidx(struct ssb_bus *bus,
+				  u8 coreidx);
+extern int ssb_pci_xtal(struct ssb_bus *bus, u32 what,
+			int turn_on);
+extern int ssb_pci_get_invariants(struct ssb_bus *bus,
+				  struct ssb_init_invariants *iv);
+extern void ssb_pci_exit(struct ssb_bus *bus);
+extern int ssb_pci_init(struct ssb_bus *bus);
+extern const struct ssb_bus_ops ssb_pci_ops;
+
+#else /* CONFIG_SSB_PCIHOST */
+
+static inline int ssb_pci_switch_core(struct ssb_bus *bus,
+				      struct ssb_device *dev)
+{
+	return 0;
+}
+static inline int ssb_pci_switch_coreidx(struct ssb_bus *bus,
+					 u8 coreidx)
+{
+	return 0;
+}
+static inline int ssb_pci_xtal(struct ssb_bus *bus, u32 what,
+			       int turn_on)
+{
+	return 0;
+}
+static inline void ssb_pci_exit(struct ssb_bus *bus)
+{
+}
+static inline int ssb_pci_init(struct ssb_bus *bus)
+{
+	return 0;
+}
+#endif /* CONFIG_SSB_PCIHOST */
+
+
+/* pcmcia.c */
+#ifdef CONFIG_SSB_PCMCIAHOST
+extern int ssb_pcmcia_switch_core(struct ssb_bus *bus,
+				  struct ssb_device *dev);
+extern int ssb_pcmcia_switch_coreidx(struct ssb_bus *bus,
+				     u8 coreidx);
+extern int ssb_pcmcia_switch_segment(struct ssb_bus *bus,
+				     u8 seg);
+extern int ssb_pcmcia_get_invariants(struct ssb_bus *bus,
+				     struct ssb_init_invariants *iv);
+extern int ssb_pcmcia_init(struct ssb_bus *bus);
+extern const struct ssb_bus_ops ssb_pcmcia_ops;
+#else /* CONFIG_SSB_PCMCIAHOST */
+static inline int ssb_pcmcia_switch_core(struct ssb_bus *bus,
+					 struct ssb_device *dev)
+{
+	return 0;
+}
+static inline int ssb_pcmcia_switch_coreidx(struct ssb_bus *bus,
+					    u8 coreidx)
+{
+	return 0;
+}
+static inline int ssb_pcmcia_switch_segment(struct ssb_bus *bus,
+					    u8 seg)
+{
+	return 0;
+}
+static inline int ssb_pcmcia_init(struct ssb_bus *bus)
+{
+	return 0;
+}
+#endif /* CONFIG_SSB_PCMCIAHOST */
+
+
+/* scan.c */
+extern const char *ssb_core_name(u16 coreid);
+extern int ssb_bus_scan(struct ssb_bus *bus,
+			unsigned long baseaddr);
+extern void ssb_iounmap(struct ssb_bus *ssb);
+
+
+/* core.c */
+extern u32 ssb_calc_clock_rate(u32 plltype, u32 n, u32 m);
+extern int ssb_devices_freeze(struct ssb_bus *bus);
+extern int ssb_devices_thaw(struct ssb_bus *bus);
+extern struct ssb_bus *ssb_pci_dev_to_bus(struct pci_dev *pdev);
+
+/* b43_pci_bridge.c */
+#ifdef CONFIG_SSB_PCIHOST
+extern int __init b43_pci_ssb_bridge_init(void);
+extern void __exit b43_pci_ssb_bridge_exit(void);
+#else /* CONFIG_SSB_PCIHOST */
+static inline int b43_pci_ssb_bridge_init(void)
+{
+	return 0;
+}
+static inline void b43_pci_ssb_bridge_exit(void)
+{
+}
+#endif /* CONFIG_SSB_PCIHOST */
+
+#endif /* LINUX_SSB_PRIVATE_H_ */