[POWERPC] 8xx: powerpc port of core CPM PIC

This covers common CPM access functions, CPM interrupt controller code,
micropatch and a few compatibility things to kee the same driver base
working with arch/ppc. This version is refined with all the comments
(mostly PIC-related) addressed.

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

3 files changed, 61 insertions, 10 deletions

diff --git a/include/asm-powerpc/fs_pd.h b/include/asm-powerpc/fs_pd.h
index 3d0e819d37f..1e2962fc4fa 100644
--- a/include/asm-powerpc/fs_pd.h
+++ b/include/asm-powerpc/fs_pd.h
@@ -11,19 +11,11 @@
 
 #ifndef FS_PD_H
 #define FS_PD_H
-#include <asm/cpm2.h>
 #include <sysdev/fsl_soc.h>
 #include <asm/time.h>
 
-static inline int uart_baudrate(void)
-{
-        return get_baudrate();
-}
-
-static inline int uart_clock(void)
-{
-        return ppc_proc_freq;
-}
+#ifdef CONFIG_CPM2
+#include <asm/cpm2.h>
 
 #define cpm2_map(member)						\
 ({									\
@@ -41,5 +33,38 @@ static inline int uart_clock(void)
 })
 
 #define cpm2_unmap(addr)	iounmap(addr)
+#endif
+
+#ifdef CONFIG_8xx
+#include <asm/8xx_immap.h>
+#include <asm/mpc8xx.h>
+
+#define immr_map(member)						\
+({									\
+	u32 offset = offsetof(immap_t, member);				\
+	void *addr = ioremap (IMAP_ADDR + offset,			\
+			      sizeof( ((immap_t*)0)->member));		\
+	addr;								\
+})
+
+#define immr_map_size(member, size)					\
+({									\
+	u32 offset = offsetof(immap_t, member);				\
+	void *addr = ioremap (IMAP_ADDR + offset, size);		\
+	addr;								\
+})
+
+#define immr_unmap(addr)		iounmap(addr)
+#endif
+
+static inline int uart_baudrate(void)
+{
+        return get_baudrate();
+}
+
+static inline int uart_clock(void)
+{
+        return ppc_proc_freq;
+}
 
 #endif
diff --git a/include/asm-powerpc/mpc8xx.h b/include/asm-powerpc/mpc8xx.h
new file mode 100644
index 00000000000..e05ba6b1b00
--- /dev/null
+++ b/include/asm-powerpc/mpc8xx.h
@@ -0,0 +1,24 @@
+/* This is the single file included by all MPC8xx build options.
+ * Since there are many different boards and no standard configuration,
+ * we have a unique include file for each.  Rather than change every
+ * file that has to include MPC8xx configuration, they all include
+ * this one and the configuration switching is done here.
+ */
+#ifdef __KERNEL__
+#ifndef __CONFIG_8xx_DEFS
+#define __CONFIG_8xx_DEFS
+
+
+#ifdef CONFIG_8xx
+
+#ifdef CONFIG_FADS
+#include <platforms/fads.h>
+#endif
+
+#if defined(CONFIG_MPC885ADS)
+#include <platforms/8xx/mpc885ads.h>
+#endif
+
+#endif /* CONFIG_8xx */
+#endif /* __CONFIG_8xx_DEFS */
+#endif /* __KERNEL__ */
diff --git a/include/asm-powerpc/time.h b/include/asm-powerpc/time.h
index 4cff977ad52..3fd57c048f5 100644
--- a/include/asm-powerpc/time.h
+++ b/include/asm-powerpc/time.h
@@ -39,6 +39,8 @@ extern void generic_calibrate_decr(void);
 extern void wakeup_decrementer(void);
 extern void snapshot_timebase(void);
 
+extern void set_dec_cpu6(unsigned int val);
+
 /* Some sane defaults: 125 MHz timebase, 1GHz processor */
 extern unsigned long ppc_proc_freq;
 #define DEFAULT_PROC_FREQ	(DEFAULT_TB_FREQ * 8)