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 = res->end = irq;
  90         res->flags = IORESOURCE_IRQ;
  91 }
  92
  93 static struct platform_device *gmac_controller2_init(void *gmac0_addr)
  94 {
  95         int mac;
  96         static struct xlr_net_data ndata1 = {
  97                 .phy_interface  = PHY_INTERFACE_MODE_SGMII,
  98                 .rfr_station    = FMN_STNID_GMAC1_FR_0,
  99                 .bucket_size    = xlr_board_fmn_config.bucket_size,
 100                 .gmac_fmn_info  = &xlr_board_fmn_config.gmac[1],
 101         };
 102
 103         static struct platform_device xlr_net_dev1 = {
 104                 .name           = "xlr-net",
 105                 .id             = 1,
 106                 .dev.platform_data = &ndata1,
 107         };
 108
 109         gmac4_addr = ioremap(CPHYSADDR(
 110                 nlm_mmio_base(NETLOGIC_IO_GMAC_4_OFFSET)), 0xfff);
 111         ndata1.serdes_addr = gmac4_addr;
 112         ndata1.pcs_addr = gmac4_addr;
 113         ndata1.mii_addr = gmac0_addr;
 114         ndata1.gpio_addr = gpio_addr;
 115         ndata1.cpu_mask = nlm_current_node()->coremask;
 116
 117         xlr_net_dev1.resource = xlr_net1_res;
 118
 119         for (mac = 0; mac < 4; mac++) {
 120                 ndata1.tx_stnid[mac] = FMN_STNID_GMAC1_TX0 + mac;
 121                 ndata1.phy_addr[mac] = mac + 4 + 0x10;
 122
 123                 xlr_resource_init(&xlr_net1_res[mac * 2],
 124                                 xlr_gmac_offsets[mac + 4],
 125                                 xlr_gmac_irqs[mac + 4]);
 126         }
 127         xlr_net_dev1.num_resources = 8;
 128
 129         return &xlr_net_dev1;
 130 }
 131
 132 static void xls_gmac_init(void)
 133 {
 134         int mac;
 135         struct platform_device *xlr_net_dev1;
 136         void __iomem *gmac0_addr = ioremap(CPHYSADDR(
 137                 nlm_mmio_base(NETLOGIC_IO_GMAC_0_OFFSET)), 0xfff);
 138
 139         static struct xlr_net_data ndata0 = {
 140                 .rfr_station    = FMN_STNID_GMACRFR_0,
 141                 .bucket_size    = xlr_board_fmn_config.bucket_size,
 142                 .gmac_fmn_info  = &xlr_board_fmn_config.gmac[0],
 143         };
 144
 145         static struct platform_device xlr_net_dev0 = {
 146                 .name           = "xlr-net",
 147                 .id             = 0,
 148         };
 149         xlr_net_dev0.dev.platform_data = &ndata0;
 150         ndata0.serdes_addr = gmac0_addr;
 151         ndata0.pcs_addr = gmac0_addr;
 152         ndata0.mii_addr = gmac0_addr;
 153
 154         /* Passing GPIO base for serdes init. Only needed on sgmii ports */
 155         gpio_addr = ioremap(CPHYSADDR(
 156                 nlm_mmio_base(NETLOGIC_IO_GPIO_OFFSET)), 0xfff);
 157         ndata0.gpio_addr = gpio_addr;
 158         ndata0.cpu_mask = nlm_current_node()->coremask;
 159
 160         xlr_net_dev0.resource = xlr_net0_res;
 161
 162         switch (nlm_prom_info.board_major_version) {
 163         case 12:
 164                 /* first block RGMII or XAUI, use RGMII */
 165                 ndata0.phy_interface = PHY_INTERFACE_MODE_RGMII;
 166                 ndata0.tx_stnid[0] = FMN_STNID_GMAC0_TX0;
 167                 ndata0.phy_addr[0] = 0;
 168
 169                 xlr_net_dev0.num_resources = 2;
 170
 171                 xlr_resource_init(&xlr_net0_res[0], xlr_gmac_offsets[0],
 172                                 xlr_gmac_irqs[0]);
 173                 platform_device_register(&xlr_net_dev0);
 174
 175                 /* second block is XAUI, not supported yet */
 176                 break;
 177         default:
 178                 /* default XLS config, all ports SGMII */
 179                 ndata0.phy_interface = PHY_INTERFACE_MODE_SGMII;
 180                 for (mac = 0; mac < 4; mac++) {
 181                         ndata0.tx_stnid[mac] = FMN_STNID_GMAC0_TX0 + mac;
 182                         ndata0.phy_addr[mac] = mac + 0x10;
 183
 184                         xlr_resource_init(&xlr_net0_res[mac * 2],
 185                                         xlr_gmac_offsets[mac],
 186                                         xlr_gmac_irqs[mac]);
 187                 }
 188                 xlr_net_dev0.num_resources = 8;
 189                 platform_device_register(&xlr_net_dev0);
 190
 191                 xlr_net_dev1 = gmac_controller2_init(gmac0_addr);
 192                 platform_device_register(xlr_net_dev1);
 193         }
 194 }
 195
 196 static void xlr_gmac_init(void)
 197 {
 198         int mac;
 199
 200         /* assume all GMACs for now */
 201         static struct xlr_net_data ndata0 = {
 202                 .phy_interface  = PHY_INTERFACE_MODE_RGMII,
 203                 .serdes_addr    = NULL,
 204                 .pcs_addr       = NULL,
 205                 .rfr_station    = FMN_STNID_GMACRFR_0,
 206                 .bucket_size    = xlr_board_fmn_config.bucket_size,
 207                 .gmac_fmn_info  = &xlr_board_fmn_config.gmac[0],
 208                 .gpio_addr      = NULL,
 209         };
 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);