188 lines
4.7 KiB
C
188 lines
4.7 KiB
C
/*
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* The setup file for ethernet related hardware on PMC-Sierra MSP processors.
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*
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* Copyright 2010 PMC-Sierra, Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
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* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/ioport.h>
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#include <linux/platform_device.h>
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#include <linux/delay.h>
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#include <msp_regs.h>
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#include <msp_int.h>
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#include <msp_gpio_macros.h>
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#define MSP_ETHERNET_GPIO0 14
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#define MSP_ETHERNET_GPIO1 15
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#define MSP_ETHERNET_GPIO2 16
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#ifdef CONFIG_MSP_HAS_TSMAC
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#define MSP_TSMAC_SIZE 0x10020
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#define MSP_TSMAC_ID "pmc_tsmac"
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static struct resource msp_tsmac0_resources[] = {
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[0] = {
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.start = MSP_MAC0_BASE,
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.end = MSP_MAC0_BASE + MSP_TSMAC_SIZE - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = MSP_INT_MAC0,
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.end = MSP_INT_MAC0,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct resource msp_tsmac1_resources[] = {
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[0] = {
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.start = MSP_MAC1_BASE,
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.end = MSP_MAC1_BASE + MSP_TSMAC_SIZE - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = MSP_INT_MAC1,
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.end = MSP_INT_MAC1,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct resource msp_tsmac2_resources[] = {
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[0] = {
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.start = MSP_MAC2_BASE,
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.end = MSP_MAC2_BASE + MSP_TSMAC_SIZE - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = MSP_INT_SAR,
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.end = MSP_INT_SAR,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device tsmac_device[] = {
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[0] = {
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.name = MSP_TSMAC_ID,
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.id = 0,
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.num_resources = ARRAY_SIZE(msp_tsmac0_resources),
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.resource = msp_tsmac0_resources,
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},
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[1] = {
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.name = MSP_TSMAC_ID,
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.id = 1,
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.num_resources = ARRAY_SIZE(msp_tsmac1_resources),
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.resource = msp_tsmac1_resources,
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},
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[2] = {
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.name = MSP_TSMAC_ID,
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.id = 2,
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.num_resources = ARRAY_SIZE(msp_tsmac2_resources),
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.resource = msp_tsmac2_resources,
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},
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};
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#define msp_eth_devs tsmac_device
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#else
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/* If it is not TSMAC assume MSP_ETH (100Mbps) */
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#define MSP_ETH_ID "pmc_mspeth"
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#define MSP_ETH_SIZE 0xE0
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static struct resource msp_eth0_resources[] = {
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[0] = {
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.start = MSP_MAC0_BASE,
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.end = MSP_MAC0_BASE + MSP_ETH_SIZE - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = MSP_INT_MAC0,
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.end = MSP_INT_MAC0,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct resource msp_eth1_resources[] = {
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[0] = {
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.start = MSP_MAC1_BASE,
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.end = MSP_MAC1_BASE + MSP_ETH_SIZE - 1,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = MSP_INT_MAC1,
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.end = MSP_INT_MAC1,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device mspeth_device[] = {
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[0] = {
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.name = MSP_ETH_ID,
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.id = 0,
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.num_resources = ARRAY_SIZE(msp_eth0_resources),
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.resource = msp_eth0_resources,
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},
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[1] = {
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.name = MSP_ETH_ID,
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.id = 1,
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.num_resources = ARRAY_SIZE(msp_eth1_resources),
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.resource = msp_eth1_resources,
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},
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};
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#define msp_eth_devs mspeth_device
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#endif
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int __init msp_eth_setup(void)
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{
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int i, ret = 0;
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/* Configure the GPIO and take the ethernet PHY out of reset */
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msp_gpio_pin_mode(MSP_GPIO_OUTPUT, MSP_ETHERNET_GPIO0);
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msp_gpio_pin_hi(MSP_ETHERNET_GPIO0);
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#ifdef CONFIG_MSP_HAS_TSMAC
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/* 3 phys on boards with TSMAC */
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msp_gpio_pin_mode(MSP_GPIO_OUTPUT, MSP_ETHERNET_GPIO1);
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msp_gpio_pin_hi(MSP_ETHERNET_GPIO1);
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msp_gpio_pin_mode(MSP_GPIO_OUTPUT, MSP_ETHERNET_GPIO2);
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msp_gpio_pin_hi(MSP_ETHERNET_GPIO2);
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#endif
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for (i = 0; i < ARRAY_SIZE(msp_eth_devs); i++) {
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ret = platform_device_register(&msp_eth_devs[i]);
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printk(KERN_INFO "device: %d, return value = %d\n", i, ret);
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if (ret) {
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platform_device_unregister(&msp_eth_devs[i]);
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break;
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}
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}
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if (ret)
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printk(KERN_WARNING "Could not initialize "
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"MSPETH device structures.\n");
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return ret;
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}
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subsys_initcall(msp_eth_setup);
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