Ganesan Ramalingam | 6f98b1a | 2013-03-06 19:42:22 +0530 | [diff] [blame] | 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); |