1/*
2 * The setup file for ethernet related hardware on PMC-Sierra MSP processors.
3 *
4 * Copyright 2010 PMC-Sierra, Inc.
5 *
6 *  This program is free software; you can redistribute  it and/or modify it
7 *  under  the terms of  the GNU General  Public License as published by the
8 *  Free Software Foundation;  either version 2 of the  License, or (at your
9 *  option) any later version.
10 *
11 *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
12 *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
13 *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
14 *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
15 *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
16 *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
17 *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
18 *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
19 *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
20 *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
21 *
22 *  You should have received a copy of the  GNU General Public License along
23 *  with this program; if not, write  to the Free Software Foundation, Inc.,
24 *  675 Mass Ave, Cambridge, MA 02139, USA.
25 */
26
27#include <linux/init.h>
28#include <linux/kernel.h>
29#include <linux/ioport.h>
30#include <linux/platform_device.h>
31#include <linux/delay.h>
32#include <msp_regs.h>
33#include <msp_int.h>
34#include <msp_gpio_macros.h>
35
36
37#define MSP_ETHERNET_GPIO0	14
38#define MSP_ETHERNET_GPIO1	15
39#define MSP_ETHERNET_GPIO2	16
40
41#define MSP_ETH_ID	"pmc_mspeth"
42#define MSP_ETH_SIZE	0xE0
43static struct resource msp_eth0_resources[] = {
44	[0] = {
45		.start	= MSP_MAC0_BASE,
46		.end	= MSP_MAC0_BASE + MSP_ETH_SIZE - 1,
47		.flags	= IORESOURCE_MEM,
48	},
49	[1] = {
50		.start	= MSP_INT_MAC0,
51		.end	= MSP_INT_MAC0,
52		.flags	= IORESOURCE_IRQ,
53	},
54};
55
56static struct resource msp_eth1_resources[] = {
57	[0] = {
58		.start	= MSP_MAC1_BASE,
59		.end	= MSP_MAC1_BASE + MSP_ETH_SIZE - 1,
60		.flags	= IORESOURCE_MEM,
61	},
62	[1] = {
63		.start	= MSP_INT_MAC1,
64		.end	= MSP_INT_MAC1,
65		.flags	= IORESOURCE_IRQ,
66	},
67};
68
69
70
71static struct platform_device mspeth_device[] = {
72	[0] = {
73		.name	= MSP_ETH_ID,
74		.id	= 0,
75		.num_resources = ARRAY_SIZE(msp_eth0_resources),
76		.resource = msp_eth0_resources,
77	},
78	[1] = {
79		.name	= MSP_ETH_ID,
80		.id	= 1,
81		.num_resources = ARRAY_SIZE(msp_eth1_resources),
82		.resource = msp_eth1_resources,
83	},
84
85};
86#define msp_eth_devs	mspeth_device
87
88int __init msp_eth_setup(void)
89{
90	int i, ret = 0;
91
92	/* Configure the GPIO and take the ethernet PHY out of reset */
93	msp_gpio_pin_mode(MSP_GPIO_OUTPUT, MSP_ETHERNET_GPIO0);
94	msp_gpio_pin_hi(MSP_ETHERNET_GPIO0);
95
96	for (i = 0; i < ARRAY_SIZE(msp_eth_devs); i++) {
97		ret = platform_device_register(&msp_eth_devs[i]);
98		printk(KERN_INFO "device: %d, return value = %d\n", i, ret);
99		if (ret) {
100			platform_device_unregister(&msp_eth_devs[i]);
101			break;
102		}
103	}
104
105	if (ret)
106		printk(KERN_WARNING "Could not initialize "
107						"MSPETH device structures.\n");
108
109	return ret;
110}
111subsys_initcall(msp_eth_setup);
112