[POWERPC] Move CPM command handling into the cpm drivers

This patch moves the CPM command handling into commproc.c
for CPM1 and cpm2_common.c. This is yet another preparation
to get rid of drivers accessing the CPM via the global cpmp.

Signed-off-by: Jochen Friedrich <jochen@scram.de>
Acked-by: Scott Wood <scottwood@freescale.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vitaly Bordug <vitb@kernel.crashing.org>
diff --git a/drivers/net/fs_enet/mac-scc.c b/drivers/net/fs_enet/mac-scc.c
index 03134f4..5ff856d7 100644
--- a/drivers/net/fs_enet/mac-scc.c
+++ b/drivers/net/fs_enet/mac-scc.c
@@ -89,21 +89,12 @@
  * Delay to wait for SCC reset command to complete (in us)
  */
 #define SCC_RESET_DELAY		50
-#define MAX_CR_CMD_LOOPS	10000
 
 static inline int scc_cr_cmd(struct fs_enet_private *fep, u32 op)
 {
 	const struct fs_platform_info *fpi = fep->fpi;
-	int i;
 
-	W16(cpmp, cp_cpcr, fpi->cp_command | CPM_CR_FLG | (op << 8));
-	for (i = 0; i < MAX_CR_CMD_LOOPS; i++)
-		if ((R16(cpmp, cp_cpcr) & CPM_CR_FLG) == 0)
-			return 0;
-
-	printk(KERN_ERR "%s(): Not able to issue CPM command\n",
-		__FUNCTION__);
-	return 1;
+	return cpm_command(fpi->cp_command, op);
 }
 
 static int do_pd_setup(struct fs_enet_private *fep)