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#ifdef CONFIG_MSP_HAS_TSMAC
42#define MSP_TSMAC_SIZE	0x10020
43#define MSP_TSMAC_ID	"pmc_tsmac"
44
45static struct resource msp_tsmac0_resources[] = {
46	[0] = {
47		.start	= MSP_MAC0_BASE,
48		.end	= MSP_MAC0_BASE + MSP_TSMAC_SIZE - 1,
49		.flags	= IORESOURCE_MEM,
50	},
51	[1] = {
52		.start	= MSP_INT_MAC0,
53		.end	= MSP_INT_MAC0,
54		.flags	= IORESOURCE_IRQ,
55	},
56};
57
58static struct resource msp_tsmac1_resources[] = {
59	[0] = {
60		.start	= MSP_MAC1_BASE,
61		.end	= MSP_MAC1_BASE + MSP_TSMAC_SIZE - 1,
62		.flags	= IORESOURCE_MEM,
63	},
64	[1] = {
65		.start	= MSP_INT_MAC1,
66		.end	= MSP_INT_MAC1,
67		.flags	= IORESOURCE_IRQ,
68	},
69};
70static struct resource msp_tsmac2_resources[] = {
71	[0] = {
72		.start	= MSP_MAC2_BASE,
73		.end	= MSP_MAC2_BASE + MSP_TSMAC_SIZE - 1,
74		.flags	= IORESOURCE_MEM,
75	},
76	[1] = {
77		.start	= MSP_INT_SAR,
78		.end	= MSP_INT_SAR,
79		.flags	= IORESOURCE_IRQ,
80	},
81};
82
83
84static struct platform_device tsmac_device[] = {
85	[0] = {
86		.name	= MSP_TSMAC_ID,
87		.id	= 0,
88		.num_resources = ARRAY_SIZE(msp_tsmac0_resources),
89		.resource = msp_tsmac0_resources,
90	},
91	[1] = {
92		.name	= MSP_TSMAC_ID,
93		.id	= 1,
94		.num_resources = ARRAY_SIZE(msp_tsmac1_resources),
95		.resource = msp_tsmac1_resources,
96	},
97	[2] = {
98		.name	= MSP_TSMAC_ID,
99		.id	= 2,
100		.num_resources = ARRAY_SIZE(msp_tsmac2_resources),
101		.resource = msp_tsmac2_resources,
102	},
103};
104#define msp_eth_devs	tsmac_device
105
106#else
107/* If it is not TSMAC assume MSP_ETH (100Mbps) */
108#define MSP_ETH_ID	"pmc_mspeth"
109#define MSP_ETH_SIZE	0xE0
110static struct resource msp_eth0_resources[] = {
111	[0] = {
112		.start	= MSP_MAC0_BASE,
113		.end	= MSP_MAC0_BASE + MSP_ETH_SIZE - 1,
114		.flags	= IORESOURCE_MEM,
115	},
116	[1] = {
117		.start	= MSP_INT_MAC0,
118		.end	= MSP_INT_MAC0,
119		.flags	= IORESOURCE_IRQ,
120	},
121};
122
123static struct resource msp_eth1_resources[] = {
124	[0] = {
125		.start	= MSP_MAC1_BASE,
126		.end	= MSP_MAC1_BASE + MSP_ETH_SIZE - 1,
127		.flags	= IORESOURCE_MEM,
128	},
129	[1] = {
130		.start	= MSP_INT_MAC1,
131		.end	= MSP_INT_MAC1,
132		.flags	= IORESOURCE_IRQ,
133	},
134};
135
136
137
138static struct platform_device mspeth_device[] = {
139	[0] = {
140		.name	= MSP_ETH_ID,
141		.id	= 0,
142		.num_resources = ARRAY_SIZE(msp_eth0_resources),
143		.resource = msp_eth0_resources,
144	},
145	[1] = {
146		.name	= MSP_ETH_ID,
147		.id	= 1,
148		.num_resources = ARRAY_SIZE(msp_eth1_resources),
149		.resource = msp_eth1_resources,
150	},
151
152};
153#define msp_eth_devs	mspeth_device
154
155#endif
156int __init msp_eth_setup(void)
157{
158	int i, ret = 0;
159
160	/* Configure the GPIO and take the ethernet PHY out of reset */
161	msp_gpio_pin_mode(MSP_GPIO_OUTPUT, MSP_ETHERNET_GPIO0);
162	msp_gpio_pin_hi(MSP_ETHERNET_GPIO0);
163
164#ifdef CONFIG_MSP_HAS_TSMAC
165	/* 3 phys on boards with TSMAC */
166	msp_gpio_pin_mode(MSP_GPIO_OUTPUT, MSP_ETHERNET_GPIO1);
167	msp_gpio_pin_hi(MSP_ETHERNET_GPIO1);
168
169	msp_gpio_pin_mode(MSP_GPIO_OUTPUT, MSP_ETHERNET_GPIO2);
170	msp_gpio_pin_hi(MSP_ETHERNET_GPIO2);
171#endif
172	for (i = 0; i < ARRAY_SIZE(msp_eth_devs); i++) {
173		ret = platform_device_register(&msp_eth_devs[i]);
174		printk(KERN_INFO "device: %d, return value = %d\n", i, ret);
175		if (ret) {
176			platform_device_unregister(&msp_eth_devs[i]);
177			break;
178		}
179	}
180
181	if (ret)
182		printk(KERN_WARNING "Could not initialize "
183						"MSPETH device structures.\n");
184
185	return ret;
186}
187subsys_initcall(msp_eth_setup);
188