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
  62 static u32 xlr_gmac_offsets[] = {
  63         NETLOGIC_IO_GMAC_0_OFFSET, NETLOGIC_IO_GMAC_1_OFFSET,
  64         NETLOGIC_IO_GMAC_2_OFFSET, NETLOGIC_IO_GMAC_3_OFFSET,
  65         NETLOGIC_IO_GMAC_4_OFFSET, NETLOGIC_IO_GMAC_5_OFFSET,
  66         NETLOGIC_IO_GMAC_6_OFFSET, NETLOGIC_IO_GMAC_7_OFFSET
  67 };
  68
  69 static u32 xlr_gmac_irqs[] = { PIC_GMAC_0_IRQ, PIC_GMAC_1_IRQ,
  70         PIC_GMAC_2_IRQ, PIC_GMAC_3_IRQ,
  71         PIC_GMAC_4_IRQ, PIC_GMAC_5_IRQ,
  72         PIC_GMAC_6_IRQ, PIC_GMAC_7_IRQ
  73 };
  74
  75 static struct xlr_net_data ndata[MAX_NUM_GMAC];
  76 static struct resource xlr_net_res[8][2];
  77 static struct platform_device xlr_net_dev[8];
  78 static u32 __iomem *gmac0_addr;
  79 static u32 __iomem *gmac4_addr;
  80 static u32 __iomem *gpio_addr;
  81
  82 static void config_mac(struct xlr_net_data *nd, int phy, u32 __iomem *serdes,
  83                 u32 __iomem *pcs, int rfr, int tx, int *bkt_size,
  84                 struct xlr_fmn_info *gmac_fmn_info, int phy_addr)
  85 {
  86         nd->cpu_mask = nlm_current_node()->coremask;
  87         nd->phy_interface = phy;
  88         nd->rfr_station = rfr;
  89         nd->tx_stnid = tx;
  90         nd->mii_addr = gmac0_addr;
  91         nd->serdes_addr = serdes;
  92         nd->pcs_addr = pcs;
  93         nd->gpio_addr = gpio_addr;
  94
  95         nd->bucket_size = bkt_size;
  96         nd->gmac_fmn_info = gmac_fmn_info;
  97         nd->phy_addr = phy_addr;
  98 }
  99
 100 static void net_device_init(int id, struct resource *res, int offset, int irq)
 101 {
 102         res[0].name = "gmac";
 103         res[0].start = CPHYSADDR(nlm_mmio_base(offset));
 104         res[0].end = res[0].start + 0xfff;
 105         res[0].flags = IORESOURCE_MEM;
 106
 107         res[1].name = "gmac";
 108         res[1].start = irq;
 109         res[1].end = irq;
 110         res[1].flags = IORESOURCE_IRQ;
 111
 112         xlr_net_dev[id].name = "xlr-net";
 113         xlr_net_dev[id].id = id;
 114         xlr_net_dev[id].num_resources = 2;
 115         xlr_net_dev[id].resource = res;
 116         xlr_net_dev[id].dev.platform_data = &ndata[id];
 117 }
 118
 119 static void xls_gmac_init(void)
 120 {
 121         int mac;
 122
 123         gmac4_addr = ioremap(CPHYSADDR(
 124                 nlm_mmio_base(NETLOGIC_IO_GMAC_4_OFFSET)), 0xfff);
 125         /* Passing GPIO base for serdes init. Only needed on sgmii ports*/
 126         gpio_addr = ioremap(CPHYSADDR(
 127                 nlm_mmio_base(NETLOGIC_IO_GPIO_OFFSET)), 0xfff);
 128
 129         switch (nlm_prom_info.board_major_version) {
 130         case 12:
 131                 /* first block RGMII or XAUI, use RGMII */
 132                 config_mac(&ndata[0],
 133                         PHY_INTERFACE_MODE_RGMII,
 134                         gmac0_addr,     /* serdes */
 135                         gmac0_addr,     /* pcs */
 136                         FMN_STNID_GMACRFR_0,
 137                         FMN_STNID_GMAC0_TX0,
 138                         xlr_board_fmn_config.bucket_size,
 139                         &xlr_board_fmn_config.gmac[0],
 140                         0);
 141
 142                 net_device_init(0, xlr_net_res[0], xlr_gmac_offsets[0],
 143                                 xlr_gmac_irqs[0]);
 144                 platform_device_register(&xlr_net_dev[0]);
 145
 146                 /* second block is XAUI, not supported yet */
 147                 break;
 148         default:
 149                 /* default XLS config, all ports SGMII */
 150                 for (mac = 0; mac < 4; mac++) {
 151                         config_mac(&ndata[mac],
 152                                 PHY_INTERFACE_MODE_SGMII,
 153                                 gmac0_addr,     /* serdes */
 154                                 gmac0_addr,     /* pcs */
 155                                 FMN_STNID_GMACRFR_0,
 156                                 FMN_STNID_GMAC0_TX0 + mac,
 157                                 xlr_board_fmn_config.bucket_size,
 158                                 &xlr_board_fmn_config.gmac[0],
 159                                 /* PHY address according to chip/board */
 160                                 mac + 0x10);
 161
 162                         net_device_init(mac, xlr_net_res[mac],
 163                                         xlr_gmac_offsets[mac],
 164                                         xlr_gmac_irqs[mac]);
 165                         platform_device_register(&xlr_net_dev[mac]);
 166                 }
 167
 168                 for (mac = 4; mac < MAX_NUM_XLS_GMAC; mac++) {
 169                         config_mac(&ndata[mac],
 170                                 PHY_INTERFACE_MODE_SGMII,
 171                                 gmac4_addr,     /* serdes */
 172                                 gmac4_addr,     /* pcs */
 173                                 FMN_STNID_GMAC1_FR_0,
 174                                 FMN_STNID_GMAC1_TX0 + mac - 4,
 175                                 xlr_board_fmn_config.bucket_size,
 176                                 &xlr_board_fmn_config.gmac[1],
 177                                 /* PHY address according to chip/board */
 178                                 mac + 0x10);
 179
 180                         net_device_init(mac, xlr_net_res[mac],
 181                                         xlr_gmac_offsets[mac],
 182                                         xlr_gmac_irqs[mac]);
 183                         platform_device_register(&xlr_net_dev[mac]);
 184                 }
 185         }
 186 }
 187
 188 static void xlr_gmac_init(void)
 189 {
 190         int mac;
 191
 192         /* assume all GMACs for now */
 193         for (mac = 0; mac < MAX_NUM_XLR_GMAC; mac++) {
 194                 config_mac(&ndata[mac],
 195                         PHY_INTERFACE_MODE_RGMII,
 196                         0,
 197                         0,
 198                         FMN_STNID_GMACRFR_0,
 199                         FMN_STNID_GMAC0_TX0,
 200                         xlr_board_fmn_config.bucket_size,
 201                         &xlr_board_fmn_config.gmac[0],
 202                         mac);
 203
 204                 net_device_init(mac, xlr_net_res[mac], xlr_gmac_offsets[mac],
 205                                 xlr_gmac_irqs[mac]);
 206                 platform_device_register(&xlr_net_dev[mac]);
 207         }
 208 }
 209
 210 static int __init xlr_net_init(void)
 211 {
 212         gmac0_addr = ioremap(CPHYSADDR(
 213                 nlm_mmio_base(NETLOGIC_IO_GMAC_0_OFFSET)), 0xfff);
 214
 215         if (nlm_chip_is_xls())
 216                 xls_gmac_init();
 217         else
 218                 xlr_gmac_init();
 219
 220         return 0;
 221 }
 222
 223 arch_initcall(xlr_net_init);