xref: /openbmc/linux/arch/arm/mach-orion5x/mpp.c (revision 54525552)
1 /*
2  * arch/arm/mach-orion5x/mpp.c
3  *
4  * MPP functions for Marvell Orion 5x SoCs
5  *
6  * This file is licensed under the terms of the GNU General Public
7  * License version 2.  This program is licensed "as is" without any
8  * warranty of any kind, whether express or implied.
9  */
10 
11 #include <linux/kernel.h>
12 #include <linux/init.h>
13 #include <linux/mbus.h>
14 #include <linux/io.h>
15 #include <mach/hardware.h>
16 #include <plat/mpp.h>
17 #include "mpp.h"
18 #include "common.h"
19 
20 static unsigned int __init orion5x_variant(void)
21 {
22 	u32 dev;
23 	u32 rev;
24 
25 	orion5x_pcie_id(&dev, &rev);
26 
27 	if (dev == MV88F5181_DEV_ID && rev >= MV88F5181L_REV_A0)
28 		return MPP_F5181_MASK;
29 
30 	if (dev == MV88F5182_DEV_ID)
31 		return MPP_F5182_MASK;
32 
33 	if (dev == MV88F5281_DEV_ID)
34 		return MPP_F5281_MASK;
35 
36 	printk(KERN_ERR "MPP setup: unknown orion5x variant "
37 	       "(dev %#x rev %#x)\n", dev, rev);
38 	return 0;
39 }
40 
41 void __init orion5x_mpp_conf(unsigned int *mpp_list)
42 {
43 	orion_mpp_conf(mpp_list, orion5x_variant(),
44 		       MPP_MAX, ORION5X_DEV_BUS_VIRT_BASE);
45 }
46