i.MX25: add AUDMUX and SSI support

* add clocks for audmux and ssi 1 & 2
* add irq for ssi 1 & 2
* add devices platform for ssi1 & 2
* update audmux-v2 for i.MX25
* add base addresses for audmux & ssi 1 & 2
* add iomux configuration for GPIO for AUD5 port

Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
diff --git a/arch/arm/plat-mxc/audmux-v2.c b/arch/arm/plat-mxc/audmux-v2.c
index 0c2cc5c..ab94d78 100644
--- a/arch/arm/plat-mxc/audmux-v2.c
+++ b/arch/arm/plat-mxc/audmux-v2.c
@@ -191,6 +191,7 @@
 {
 	int ret;
 
+#if defined(CONFIG_ARCH_MX3)
 	if (cpu_is_mx31())
 		audmux_base = MX31_IO_ADDRESS(MX31_AUDMUX_BASE_ADDR);
 
@@ -204,7 +205,19 @@
 		}
 		audmux_base = MX35_IO_ADDRESS(MX35_AUDMUX_BASE_ADDR);
 	}
-
+#endif
+#if defined(CONFIG_ARCH_MX25)
+	if (cpu_is_mx25()) {
+		audmux_clk = clk_get(NULL, "audmux");
+		if (IS_ERR(audmux_clk)) {
+			ret = PTR_ERR(audmux_clk);
+			printk(KERN_ERR "%s: cannot get clock: %d\n", __func__,
+					ret);
+			return ret;
+		}
+		audmux_base = MX25_IO_ADDRESS(MX25_AUDMUX_BASE_ADDR);
+	}
+#endif
 	audmux_debugfs_init();
 
 	return 0;