1 /*
2  * arch/arm/mach-kirkwood/mpp.c
3  *
4  * MPP functions for Marvell Kirkwood 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 #include <linux/gpio.h>
11 #include <linux/kernel.h>
12 #include <linux/init.h>
13 #include <linux/io.h>
14 #include <mach/hardware.h>
15 #include <plat/mpp.h>
16 #include "common.h"
17 #include "mpp.h"
18 
kirkwood_variant(void)19 static unsigned int __init kirkwood_variant(void)
20 {
21 	u32 dev, rev;
22 
23 	kirkwood_pcie_id(&dev, &rev);
24 
25 	if ((dev == MV88F6281_DEV_ID && rev >= MV88F6281_REV_A0) ||
26 	    (dev == MV88F6282_DEV_ID))
27 		return MPP_F6281_MASK;
28 	if (dev == MV88F6192_DEV_ID && rev >= MV88F6192_REV_A0)
29 		return MPP_F6192_MASK;
30 	if (dev == MV88F6180_DEV_ID)
31 		return MPP_F6180_MASK;
32 
33 	printk(KERN_ERR "MPP setup: unknown kirkwood variant "
34 			"(dev %#x rev %#x)\n", dev, rev);
35 	return 0;
36 }
37 
kirkwood_mpp_conf(unsigned int * mpp_list)38 void __init kirkwood_mpp_conf(unsigned int *mpp_list)
39 {
40 	orion_mpp_conf(mpp_list, kirkwood_variant(),
41 		       MPP_MAX, DEV_BUS_VIRT_BASE);
42 }
43