drivers/staging/netlogic/platform_net.c

   1 /*
   2  * Copyright (c) 2003-2012 Broadcom Corporation
   3  * All Rights Reserved
   4  *
   5  * This software is available to you under a choice of one of two
   6  * licenses.  You may choose to be licensed under the terms of the GNU
   7  * 1. Redistributions of source code must retain the above copyright
   8  * General Public License (GPL) Version 2, available from the file
   9  * COPYING in the main directory of this source tree, or the Broadcom
  10  * license below:
  11  *
  12  * Redistribution and use in source and binary forms, with or without
  13  * modification, are permitted provided that the following conditions
  14  * are met:
  15  *
  16  * 1. Redistributions of source code must retain the above copyright
  17  *    notice, this list of conditions and the following disclaimer.
  18  * 2. Redistributions in binary form must reproduce the above copyright
  19  *    notice, this list of conditions and the following disclaimer in
  20  *    the documentation and/or other materials provided with the
  21  *    distribution.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY BROADCOM ``AS IS'' AND ANY EXPRESS OR
  24  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  25  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  28  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  29  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  30  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  31  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
  32  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
  33  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  34  */
  35
  36 #include <linux/device.h>
  37 #include <linux/platform_device.h>
  38 #include <linux/kernel.h>
  39 #include <linux/init.h>
  40 #include <linux/io.h>
  41 #include <linux/delay.h>
  42 #include <linux/ioport.h>
  43 #include <linux/resource.h>
  44 #include <linux/phy.h>
  45
  46 #include <asm/netlogic/haldefs.h>
  47 #include <asm/netlogic/common.h>
  48 #include <asm/netlogic/xlr/fmn.h>
  49 #include <asm/netlogic/xlr/xlr.h>
  50 #include <asm/netlogic/psb-bootinfo.h>
  51 #include <asm/netlogic/xlr/pic.h>
  52 #include <asm/netlogic/xlr/iomap.h>
  53
  54 #include "platform_net.h"
  55
  56 /* Linux Net */
  57 #define MAX_NUM_GMAC            8
  58 #define MAX_NUM_XLS_GMAC        8
  59 #define MAX_NUM_XLR_GMAC        4
  60
  61 static u32 xlr_gmac_offsets[] = {
  62         NETLOGIC_IO_GMAC_0_OFFSET, NETLOGIC_IO_GMAC_1_OFFSET,
  63         NETLOGIC_IO_GMAC_2_OFFSET, NETLOGIC_IO_GMAC_3_OFFSET,
  64         NETLOGIC_IO_GMAC_4_OFFSET, NETLOGIC_IO_GMAC_5_OFFSET,
  65         NETLOGIC_IO_GMAC_6_OFFSET, NETLOGIC_IO_GMAC_7_OFFSET
  66 };
  67
  68 static u32 xlr_gmac_irqs[] = { PIC_GMAC_0_IRQ, PIC_GMAC_1_IRQ,
  69         PIC_GMAC_2_IRQ, PIC_GMAC_3_IRQ,
  70         PIC_GMAC_4_IRQ, PIC_GMAC_5_IRQ,
  71         PIC_GMAC_6_IRQ, PIC_GMAC_7_IRQ
  72 };
  73
  74 static struct resource xlr_net0_res[8];
  75 static struct resource xlr_net1_res[8];
  76 static u32 __iomem *gmac4_addr;
  77 static u32 __iomem *gpio_addr;
  78
  79 static void xlr_resource_init(struct resource *res, int offset, int irq)
  80 {
  81         res->name = "gmac";
  82
  83         res->start = CPHYSADDR(nlm_mmio_base(offset));
  84         res->end = res->start + 0xfff;
  85         res->flags = IORESOURCE_MEM;
  86
  87         res++;
  88         res->name = "gmac";
  89         res->start = irq;
  90         res->end = irq;
  91         res->flags = IORESOURCE_IRQ;
  92 }
  93
  94 static struct platform_device *gmac_controller2_init(void *gmac0_addr)
  95 {
  96         int mac;
  97         static struct xlr_net_data ndata1 = {
  98                 .phy_interface  = PHY_INTERFACE_MODE_SGMII,
  99                 .rfr_station    = FMN_STNID_GMAC1_FR_0,
 100                 .bucket_size    = xlr_board_fmn_config.bucket_size,
 101                 .gmac_fmn_info  = &xlr_board_fmn_config.gmac[1],
 102         };
 103
 104         static struct platform_device xlr_net_dev1 = {
 105                 .name           = "xlr-net",
 106                 .id             = 1,
 107                 .dev.platform_data = &ndata1,
 108         };
 109
 110         gmac4_addr = ioremap(CPHYSADDR(
 111                 nlm_mmio_base(NETLOGIC_IO_GMAC_4_OFFSET)), 0xfff);
 112         ndata1.serdes_addr = gmac4_addr;
 113         ndata1.pcs_addr = gmac4_addr;
 114         ndata1.mii_addr = gmac0_addr;
 115         ndata1.gpio_addr = gpio_addr;
 116         ndata1.cpu_mask = nlm_current_node()->coremask;
 117
 118         xlr_net_dev1.resource = xlr_net1_res;
 119
 120         for (mac = 0; mac < 4; mac++) {
 121                 ndata1.tx_stnid[mac] = FMN_STNID_GMAC1_TX0 + mac;
 122                 ndata1.phy_addr[mac] = mac + 4 + 0x10;
 123
 124                 xlr_resource_init(&xlr_net1_res[mac * 2],
 125                                   xlr_gmac_offsets[mac + 4],
 126                                   xlr_gmac_irqs[mac + 4]);
 127         }
 128         xlr_net_dev1.num_resources = 8;
 129
 130         return &xlr_net_dev1;
 131 }
 132
 133 static void xls_gmac_init(void)
 134 {
 135         int mac;
 136         struct platform_device *xlr_net_dev1;
 137         void __iomem *gmac0_addr = ioremap(CPHYSADDR(
 138                 nlm_mmio_base(NETLOGIC_IO_GMAC_0_OFFSET)), 0xfff);
 139
 140         static struct xlr_net_data ndata0 = {
 141                 .rfr_station    = FMN_STNID_GMACRFR_0,
 142                 .bucket_size    = xlr_board_fmn_config.bucket_size,
 143                 .gmac_fmn_info  = &xlr_board_fmn_config.gmac[0],
 144         };
 145
 146         static struct platform_device xlr_net_dev0 = {
 147                 .name           = "xlr-net",
 148                 .id             = 0,
 149         };
 150         xlr_net_dev0.dev.platform_data = &ndata0;
 151         ndata0.serdes_addr = gmac0_addr;
 152         ndata0.pcs_addr = gmac0_addr;
 153         ndata0.mii_addr = gmac0_addr;
 154
 155         /* Passing GPIO base for serdes init. Only needed on sgmii ports */
 156         gpio_addr = ioremap(CPHYSADDR(
 157                 nlm_mmio_base(NETLOGIC_IO_GPIO_OFFSET)), 0xfff);
 158         ndata0.gpio_addr = gpio_addr;
 159         ndata0.cpu_mask = nlm_current_node()->coremask;
 160
 161         xlr_net_dev0.resource = xlr_net0_res;
 162
 163         switch (nlm_prom_info.board_major_version) {
 164         case 12:
 165                 /* first block RGMII or XAUI, use RGMII */
 166                 ndata0.phy_interface = PHY_INTERFACE_MODE_RGMII;
 167                 ndata0.tx_stnid[0] = FMN_STNID_GMAC0_TX0;
 168                 ndata0.phy_addr[0] = 0;
 169
 170                 xlr_net_dev0.num_resources = 2;
 171
 172                 xlr_resource_init(&xlr_net0_res[0], xlr_gmac_offsets[0],
 173                                   xlr_gmac_irqs[0]);
 174                 platform_device_register(&xlr_net_dev0);
 175
 176                 /* second block is XAUI, not supported yet */
 177                 break;
 178         default:
 179                 /* default XLS config, all ports SGMII */
 180                 ndata0.phy_interface = PHY_INTERFACE_MODE_SGMII;
 181                 for (mac = 0; mac < 4; mac++) {
 182                         ndata0.tx_stnid[mac] = FMN_STNID_GMAC0_TX0 + mac;
 183                         ndata0.phy_addr[mac] = mac + 0x10;
 184
 185                         xlr_resource_init(&xlr_net0_res[mac * 2],
 186                                           xlr_gmac_offsets[mac],
 187                                         xlr_gmac_irqs[mac]);
 188                 }
 189                 xlr_net_dev0.num_resources = 8;
 190                 platform_device_register(&xlr_net_dev0);
 191
 192                 xlr_net_dev1 = gmac_controller2_init(gmac0_addr);
 193                 platform_device_register(xlr_net_dev1);
 194         }
 195 }
 196
 197 static void xlr_gmac_init(void)
 198 {
 199         int mac;
 200
 201         /* assume all GMACs for now */
 202         static struct xlr_net_data ndata0 = {
 203                 .phy_interface  = PHY_INTERFACE_MODE_RGMII,
 204                 .serdes_addr    = NULL,
 205                 .pcs_addr       = NULL,
 206                 .rfr_station    = FMN_STNID_GMACRFR_0,
 207                 .bucket_size    = xlr_board_fmn_config.bucket_size,
 208                 .gmac_fmn_info  = &xlr_board_fmn_config.gmac[0],
 209                 .gpio_addr      = NULL,
 210         };
 211
 212         static struct platform_device xlr_net_dev0 = {
 213                 .name           = "xlr-net",
 214                 .id             = 0,
 215                 .dev.platform_data = &ndata0,
 216         };
 217         ndata0.mii_addr = ioremap(CPHYSADDR(
 218                 nlm_mmio_base(NETLOGIC_IO_GMAC_0_OFFSET)), 0xfff);
 219
 220         ndata0.cpu_mask = nlm_current_node()->coremask;
 221
 222         for (mac = 0; mac < MAX_NUM_XLR_GMAC; mac++) {
 223                 ndata0.tx_stnid[mac] = FMN_STNID_GMAC0_TX0 + mac;
 224                 ndata0.phy_addr[mac] = mac;
 225                 xlr_resource_init(&xlr_net0_res[mac * 2], xlr_gmac_offsets[mac],
 226                                   xlr_gmac_irqs[mac]);
 227         }
 228         xlr_net_dev0.num_resources = 8;
 229         xlr_net_dev0.resource = xlr_net0_res;
 230
 231         platform_device_register(&xlr_net_dev0);
 232 }
 233
 234 static int __init xlr_net_init(void)
 235 {
 236         if (nlm_chip_is_xls())
 237                 xls_gmac_init();
 238         else
 239                 xlr_gmac_init();
 240
 241         return 0;
 242 }
 243
 244 arch_initcall(xlr_net_init);