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TOMOYO Linux Cross Reference
Linux/arch/mips/pmcs-msp71xx/msp_eth.c

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  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
 43 static 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 
 56 static 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 
 71 static 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 
 88 int __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 }
111 subsys_initcall(msp_eth_setup);
112 

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