ssb: move functions specific to SoC hosted bus to separated file

This cleans main.c a bit and will allow us to compile SoC related code
conditionally in the future.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

4 files changed, 180 insertions, 161 deletions

diff --git a/drivers/ssb/Makefile b/drivers/ssb/Makefile
index 7daa03e34b37..30194c5072f5 100644
--- a/drivers/ssb/Makefile
+++ b/drivers/ssb/Makefile
@@ -7,6 +7,7 @@ ssb-$(CONFIG_SSB_SPROM)			+= sprom.o
 ssb-$(CONFIG_SSB_PCIHOST)               += pci.o pcihost_wrapper.o
 ssb-$(CONFIG_SSB_PCMCIAHOST)            += pcmcia.o bridge_pcmcia_80211.o
 ssb-$(CONFIG_SSB_SDIOHOST)              += sdio.o
+ssb-y                                   += host_soc.o
 
 # built-in drivers
 ssb-y                                   += driver_chipcommon.o
diff --git a/drivers/ssb/host_soc.c b/drivers/ssb/host_soc.c
new file mode 100644
index 000000000000..c809f255af34
--- /dev/null
+++ b/drivers/ssb/host_soc.c
@@ -0,0 +1,173 @@
+/*
+ * Sonics Silicon Backplane SoC host related functions.
+ * Subsystem core
+ *
+ * Copyright 2005, Broadcom Corporation
+ * Copyright 2006, 2007, Michael Buesch <m@bues.ch>
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include <linux/ssb/ssb.h>
+
+#include "ssb_private.h"
+
+static u8 ssb_host_soc_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_host_soc_read16(struct ssb_device *dev, u16 offset)
+{
+        struct ssb_bus *bus = dev->bus;
+
+        offset += dev->core_index * SSB_CORE_SIZE;
+        return readw(bus->mmio + offset);
+}
+
+static u32 ssb_host_soc_read32(struct ssb_device *dev, u16 offset)
+{
+        struct ssb_bus *bus = dev->bus;
+
+        offset += dev->core_index * SSB_CORE_SIZE;
+        return readl(bus->mmio + offset);
+}
+
+#ifdef CONFIG_SSB_BLOCKIO
+static void ssb_host_soc_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_host_soc_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_host_soc_write16(struct ssb_device *dev, u16 offset, u16 value)
+{
+        struct ssb_bus *bus = dev->bus;
+
+        offset += dev->core_index * SSB_CORE_SIZE;
+        writew(value, bus->mmio + offset);
+}
+
+static void ssb_host_soc_write32(struct ssb_device *dev, u16 offset, u32 value)
+{
+        struct ssb_bus *bus = dev->bus;
+
+        offset += dev->core_index * SSB_CORE_SIZE;
+        writel(value, bus->mmio + offset);
+}
+
+#ifdef CONFIG_SSB_BLOCKIO
+static void ssb_host_soc_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). */
+const struct ssb_bus_ops ssb_host_soc_ops = {
+        .read8          = ssb_host_soc_read8,
+        .read16         = ssb_host_soc_read16,
+        .read32         = ssb_host_soc_read32,
+        .write8         = ssb_host_soc_write8,
+        .write16        = ssb_host_soc_write16,
+        .write32        = ssb_host_soc_write32,
+#ifdef CONFIG_SSB_BLOCKIO
+        .block_read     = ssb_host_soc_block_read,
+        .block_write    = ssb_host_soc_block_write,
+#endif
+};
diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c
index 90ec6a048b4c..bea823e824eb 100644
--- a/drivers/ssb/main.c
+++ b/drivers/ssb/main.c
@@ -596,166 +596,6 @@ 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;
-
-        offset += dev->core_index * SSB_CORE_SIZE;
-        return readw(bus->mmio + offset);
-}
-
-static u32 ssb_ssb_read32(struct ssb_device *dev, u16 offset)
-{
-        struct ssb_bus *bus = dev->bus;
-
-        offset += dev->core_index * SSB_CORE_SIZE;
-        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;
-
-        offset += dev->core_index * SSB_CORE_SIZE;
-        writew(value, bus->mmio + offset);
-}
-
-static void ssb_ssb_write32(struct ssb_device *dev, u16 offset, u32 value)
-{
-        struct ssb_bus *bus = dev->bus;
-
-        offset += dev->core_index * SSB_CORE_SIZE;
-        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,
                                 ssb_invariants_func_t get_invariants)
 {
@@ -927,7 +767,7 @@ int ssb_bus_ssbbus_register(struct ssb_bus *bus, unsigned long baseaddr,
         int err;
 
         bus->bustype = SSB_BUSTYPE_SSB;
-        bus->ops = &ssb_ssb_ops;
+        bus->ops = &ssb_host_soc_ops;
 
         err = ssb_bus_register(bus, get_invariants, baseaddr);
         if (!err) {
diff --git a/drivers/ssb/ssb_private.h b/drivers/ssb/ssb_private.h
index 93bb8f0195a9..0a756c2519e5 100644
--- a/drivers/ssb/ssb_private.h
+++ b/drivers/ssb/ssb_private.h
@@ -157,6 +157,11 @@ static inline int ssb_sdio_init(struct ssb_bus *bus)
 }
 #endif /* CONFIG_SSB_SDIOHOST */
 
+/**************************************************
+ * host_soc.c
+ **************************************************/
+
+extern const struct ssb_bus_ops ssb_host_soc_ops;
 
 /* scan.c */
 extern const char *ssb_core_name(u16 coreid);