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);