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/*
* l2switch.c
*
* Sub-architcture dependant initialization code for the Freescale
* 5441X and Vybrid L2 Switch module.
*
* Copyright 2010-2012 Freescale Semiconductor, Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/param.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/device.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/platform_device.h>
#include <linux/fsl_devices.h>
#include <linux/dma-mapping.h>
#include <asm/traps.h>
#include <asm/sizes.h>
#include <mach/clock.h>
#include <mach/fsl_l2_switch.h>
#include <mach/hardware.h>
#include <mach/devices-common.h>
#define ENET_PALR 0x0e4
#define ENET_PAUR 0x0e8
static unsigned char default_mac[ETH_ALEN] = {
0x00, 0x04, 0x9F, 0x00, 0xB3, 0x49};
/* FEC mac registers set by bootloader */
static int switch_get_mac_addr(unsigned char *mac)
{
unsigned int value;
value = readl(MVF_IO_ADDRESS(MVF_FEC_BASE_ADDR) + ENET_PALR);
mac[2] = value & 0xff;
mac[3] = (value >> 8) & 0xff;
mac[4] = (value >> 16) & 0xff;
mac[5] = (value >> 24) & 0xff;
value = readl(MVF_IO_ADDRESS(MVF_FEC_BASE_ADDR) + ENET_PAUR);
mac[0] = (value >> 16) & 0xff;
mac[1] = (value >> 24) & 0xff;
return 0;
}
struct platform_device *__init mvf_init_switch(
struct switch_platform_data pdata)
{
struct resource res[] = {
{
.start = MVF_L2SWITCH_BASE_ADDR,
.end = MVF_L2SWITCH_BASE_ADDR + SZ_4K - 1 ,
.flags = IORESOURCE_MEM,
},
{
.start = MVF_L2SWITCH_MACBASE_ADDR,
.end = MVF_L2SWITCH_MACBASE_ADDR + SZ_16K - 1,
.flags = IORESOURCE_MEM,
},
{
.start = MVF_MAC0_BASE_ADDR,
.end = MVF_MAC0_BASE_ADDR + SZ_8K - 1,
.flags = IORESOURCE_MEM,
},
{
.start = MVF_INT_ENET_SWITCH,
.end = MVF_INT_ENET_SWITCH,
.flags = IORESOURCE_IRQ,
},
};
switch_get_mac_addr(pdata.mac);
if (!is_valid_ether_addr(pdata.mac))
memcpy(pdata.mac, default_mac, ETH_ALEN);
return imx_add_platform_device_dmamask("switch", 0,
res, ARRAY_SIZE(res),
&pdata, sizeof(pdata), DMA_BIT_MASK(32));
}
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