Sascha Hauer | 92aa674 | 2006-06-22 07:11:13 +0200 | [diff] [blame] | 1 | /* |
Paul Gortmaker | 3396c78 | 2012-01-27 13:36:01 +0000 | [diff] [blame] | 2 | * drivers/net/ethernet/netx-eth.c |
Sascha Hauer | 92aa674 | 2006-06-22 07:11:13 +0200 | [diff] [blame] | 3 | * |
| 4 | * Copyright (c) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License version 2 |
| 8 | * as published by the Free Software Foundation. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 18 | */ |
| 19 | |
Sascha Hauer | 92aa674 | 2006-06-22 07:11:13 +0200 | [diff] [blame] | 20 | #include <linux/init.h> |
Alexey Dobriyan | a6b7a40 | 2011-06-06 10:43:46 +0000 | [diff] [blame] | 21 | #include <linux/interrupt.h> |
Sascha Hauer | 92aa674 | 2006-06-22 07:11:13 +0200 | [diff] [blame] | 22 | #include <linux/module.h> |
| 23 | #include <linux/kernel.h> |
| 24 | #include <linux/delay.h> |
| 25 | |
| 26 | #include <linux/netdevice.h> |
| 27 | #include <linux/platform_device.h> |
| 28 | #include <linux/etherdevice.h> |
| 29 | #include <linux/skbuff.h> |
| 30 | #include <linux/mii.h> |
| 31 | |
| 32 | #include <asm/io.h> |
Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame] | 33 | #include <mach/hardware.h> |
| 34 | #include <mach/netx-regs.h> |
| 35 | #include <mach/pfifo.h> |
| 36 | #include <mach/xc.h> |
| 37 | #include <mach/eth.h> |
Sascha Hauer | 92aa674 | 2006-06-22 07:11:13 +0200 | [diff] [blame] | 38 | |
| 39 | /* XC Fifo Offsets */ |
| 40 | #define EMPTY_PTR_FIFO(xcno) (0 + ((xcno) << 3)) /* Index of the empty pointer FIFO */ |
| 41 | #define IND_FIFO_PORT_HI(xcno) (1 + ((xcno) << 3)) /* Index of the FIFO where received */ |
| 42 | /* Data packages are indicated by XC */ |
| 43 | #define IND_FIFO_PORT_LO(xcno) (2 + ((xcno) << 3)) /* Index of the FIFO where received */ |
| 44 | /* Data packages are indicated by XC */ |
| 45 | #define REQ_FIFO_PORT_HI(xcno) (3 + ((xcno) << 3)) /* Index of the FIFO where Data packages */ |
| 46 | /* have to be indicated by ARM which */ |
| 47 | /* shall be sent */ |
| 48 | #define REQ_FIFO_PORT_LO(xcno) (4 + ((xcno) << 3)) /* Index of the FIFO where Data packages */ |
| 49 | /* have to be indicated by ARM which shall */ |
| 50 | /* be sent */ |
| 51 | #define CON_FIFO_PORT_HI(xcno) (5 + ((xcno) << 3)) /* Index of the FIFO where sent Data packages */ |
| 52 | /* are confirmed */ |
| 53 | #define CON_FIFO_PORT_LO(xcno) (6 + ((xcno) << 3)) /* Index of the FIFO where sent Data */ |
| 54 | /* packages are confirmed */ |
| 55 | #define PFIFO_MASK(xcno) (0x7f << (xcno*8)) |
| 56 | |
| 57 | #define FIFO_PTR_FRAMELEN_SHIFT 0 |
| 58 | #define FIFO_PTR_FRAMELEN_MASK (0x7ff << 0) |
| 59 | #define FIFO_PTR_FRAMELEN(len) (((len) << 0) & FIFO_PTR_FRAMELEN_MASK) |
| 60 | #define FIFO_PTR_TIMETRIG (1<<11) |
| 61 | #define FIFO_PTR_MULTI_REQ |
| 62 | #define FIFO_PTR_ORIGIN (1<<14) |
| 63 | #define FIFO_PTR_VLAN (1<<15) |
| 64 | #define FIFO_PTR_FRAMENO_SHIFT 16 |
| 65 | #define FIFO_PTR_FRAMENO_MASK (0x3f << 16) |
| 66 | #define FIFO_PTR_FRAMENO(no) (((no) << 16) & FIFO_PTR_FRAMENO_MASK) |
| 67 | #define FIFO_PTR_SEGMENT_SHIFT 22 |
| 68 | #define FIFO_PTR_SEGMENT_MASK (0xf << 22) |
| 69 | #define FIFO_PTR_SEGMENT(seg) (((seg) & 0xf) << 22) |
| 70 | #define FIFO_PTR_ERROR_SHIFT 28 |
| 71 | #define FIFO_PTR_ERROR_MASK (0xf << 28) |
| 72 | |
| 73 | #define ISR_LINK_STATUS_CHANGE (1<<4) |
| 74 | #define ISR_IND_LO (1<<3) |
| 75 | #define ISR_CON_LO (1<<2) |
| 76 | #define ISR_IND_HI (1<<1) |
| 77 | #define ISR_CON_HI (1<<0) |
| 78 | |
| 79 | #define ETH_MAC_LOCAL_CONFIG 0x1560 |
| 80 | #define ETH_MAC_4321 0x1564 |
| 81 | #define ETH_MAC_65 0x1568 |
| 82 | |
| 83 | #define MAC_TRAFFIC_CLASS_ARRANGEMENT_SHIFT 16 |
| 84 | #define MAC_TRAFFIC_CLASS_ARRANGEMENT_MASK (0xf<<MAC_TRAFFIC_CLASS_ARRANGEMENT_SHIFT) |
| 85 | #define MAC_TRAFFIC_CLASS_ARRANGEMENT(x) (((x)<<MAC_TRAFFIC_CLASS_ARRANGEMENT_SHIFT) & MAC_TRAFFIC_CLASS_ARRANGEMENT_MASK) |
| 86 | #define LOCAL_CONFIG_LINK_STATUS_IRQ_EN (1<<24) |
| 87 | #define LOCAL_CONFIG_CON_LO_IRQ_EN (1<<23) |
| 88 | #define LOCAL_CONFIG_CON_HI_IRQ_EN (1<<22) |
| 89 | #define LOCAL_CONFIG_IND_LO_IRQ_EN (1<<21) |
| 90 | #define LOCAL_CONFIG_IND_HI_IRQ_EN (1<<20) |
| 91 | |
| 92 | #define CARDNAME "netx-eth" |
| 93 | |
| 94 | /* LSB must be zero */ |
| 95 | #define INTERNAL_PHY_ADR 0x1c |
| 96 | |
| 97 | struct netx_eth_priv { |
| 98 | void __iomem *sram_base, *xpec_base, *xmac_base; |
| 99 | int id; |
Sascha Hauer | 92aa674 | 2006-06-22 07:11:13 +0200 | [diff] [blame] | 100 | struct mii_if_info mii; |
| 101 | u32 msg_enable; |
| 102 | struct xc *xc; |
| 103 | spinlock_t lock; |
| 104 | }; |
| 105 | |
| 106 | static void netx_eth_set_multicast_list(struct net_device *ndev) |
| 107 | { |
| 108 | /* implement me */ |
| 109 | } |
| 110 | |
| 111 | static int |
| 112 | netx_eth_hard_start_xmit(struct sk_buff *skb, struct net_device *ndev) |
| 113 | { |
| 114 | struct netx_eth_priv *priv = netdev_priv(ndev); |
| 115 | unsigned char *buf = skb->data; |
| 116 | unsigned int len = skb->len; |
| 117 | |
| 118 | spin_lock_irq(&priv->lock); |
| 119 | memcpy_toio(priv->sram_base + 1560, (void *)buf, len); |
| 120 | if (len < 60) { |
| 121 | memset_io(priv->sram_base + 1560 + len, 0, 60 - len); |
| 122 | len = 60; |
| 123 | } |
| 124 | |
| 125 | pfifo_push(REQ_FIFO_PORT_LO(priv->id), |
| 126 | FIFO_PTR_SEGMENT(priv->id) | |
| 127 | FIFO_PTR_FRAMENO(1) | |
| 128 | FIFO_PTR_FRAMELEN(len)); |
| 129 | |
David S. Miller | e2ac455 | 2007-11-13 20:47:35 -0800 | [diff] [blame] | 130 | ndev->stats.tx_packets++; |
| 131 | ndev->stats.tx_bytes += skb->len; |
Sascha Hauer | 92aa674 | 2006-06-22 07:11:13 +0200 | [diff] [blame] | 132 | |
| 133 | netif_stop_queue(ndev); |
| 134 | spin_unlock_irq(&priv->lock); |
| 135 | dev_kfree_skb(skb); |
| 136 | |
Patrick McHardy | 6ed1065 | 2009-06-23 06:03:08 +0000 | [diff] [blame] | 137 | return NETDEV_TX_OK; |
Sascha Hauer | 92aa674 | 2006-06-22 07:11:13 +0200 | [diff] [blame] | 138 | } |
| 139 | |
| 140 | static void netx_eth_receive(struct net_device *ndev) |
| 141 | { |
| 142 | struct netx_eth_priv *priv = netdev_priv(ndev); |
| 143 | unsigned int val, frameno, seg, len; |
| 144 | unsigned char *data; |
| 145 | struct sk_buff *skb; |
| 146 | |
| 147 | val = pfifo_pop(IND_FIFO_PORT_LO(priv->id)); |
| 148 | |
| 149 | frameno = (val & FIFO_PTR_FRAMENO_MASK) >> FIFO_PTR_FRAMENO_SHIFT; |
| 150 | seg = (val & FIFO_PTR_SEGMENT_MASK) >> FIFO_PTR_SEGMENT_SHIFT; |
| 151 | len = (val & FIFO_PTR_FRAMELEN_MASK) >> FIFO_PTR_FRAMELEN_SHIFT; |
| 152 | |
Pradeep A. Dalvi | dae2e9f | 2012-02-06 11:16:13 +0000 | [diff] [blame] | 153 | skb = netdev_alloc_skb(ndev, len); |
Sascha Hauer | 92aa674 | 2006-06-22 07:11:13 +0200 | [diff] [blame] | 154 | if (unlikely(skb == NULL)) { |
| 155 | printk(KERN_NOTICE "%s: Low memory, packet dropped.\n", |
| 156 | ndev->name); |
David S. Miller | e2ac455 | 2007-11-13 20:47:35 -0800 | [diff] [blame] | 157 | ndev->stats.rx_dropped++; |
Sascha Hauer | 92aa674 | 2006-06-22 07:11:13 +0200 | [diff] [blame] | 158 | return; |
| 159 | } |
| 160 | |
| 161 | data = skb_put(skb, len); |
| 162 | |
| 163 | memcpy_fromio(data, priv->sram_base + frameno * 1560, len); |
| 164 | |
| 165 | pfifo_push(EMPTY_PTR_FIFO(priv->id), |
| 166 | FIFO_PTR_SEGMENT(seg) | FIFO_PTR_FRAMENO(frameno)); |
| 167 | |
Sascha Hauer | 92aa674 | 2006-06-22 07:11:13 +0200 | [diff] [blame] | 168 | skb->protocol = eth_type_trans(skb, ndev); |
| 169 | netif_rx(skb); |
Adrian Bunk | 9a262d5 | 2008-01-05 23:55:13 -0800 | [diff] [blame] | 170 | ndev->stats.rx_packets++; |
| 171 | ndev->stats.rx_bytes += len; |
Sascha Hauer | 92aa674 | 2006-06-22 07:11:13 +0200 | [diff] [blame] | 172 | } |
| 173 | |
| 174 | static irqreturn_t |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 175 | netx_eth_interrupt(int irq, void *dev_id) |
Sascha Hauer | 92aa674 | 2006-06-22 07:11:13 +0200 | [diff] [blame] | 176 | { |
| 177 | struct net_device *ndev = dev_id; |
| 178 | struct netx_eth_priv *priv = netdev_priv(ndev); |
| 179 | int status; |
| 180 | unsigned long flags; |
| 181 | |
| 182 | spin_lock_irqsave(&priv->lock, flags); |
| 183 | |
| 184 | status = readl(NETX_PFIFO_XPEC_ISR(priv->id)); |
| 185 | while (status) { |
| 186 | int fill_level; |
| 187 | writel(status, NETX_PFIFO_XPEC_ISR(priv->id)); |
| 188 | |
| 189 | if ((status & ISR_CON_HI) || (status & ISR_IND_HI)) |
| 190 | printk("%s: unexpected status: 0x%08x\n", |
Harvey Harrison | b39d66a | 2008-08-20 16:52:04 -0700 | [diff] [blame] | 191 | __func__, status); |
Sascha Hauer | 92aa674 | 2006-06-22 07:11:13 +0200 | [diff] [blame] | 192 | |
| 193 | fill_level = |
| 194 | readl(NETX_PFIFO_FILL_LEVEL(IND_FIFO_PORT_LO(priv->id))); |
| 195 | while (fill_level--) |
| 196 | netx_eth_receive(ndev); |
| 197 | |
| 198 | if (status & ISR_CON_LO) |
| 199 | netif_wake_queue(ndev); |
| 200 | |
| 201 | if (status & ISR_LINK_STATUS_CHANGE) |
| 202 | mii_check_media(&priv->mii, netif_msg_link(priv), 1); |
| 203 | |
| 204 | status = readl(NETX_PFIFO_XPEC_ISR(priv->id)); |
| 205 | } |
| 206 | spin_unlock_irqrestore(&priv->lock, flags); |
| 207 | return IRQ_HANDLED; |
| 208 | } |
| 209 | |
Sascha Hauer | 92aa674 | 2006-06-22 07:11:13 +0200 | [diff] [blame] | 210 | static int netx_eth_open(struct net_device *ndev) |
| 211 | { |
| 212 | struct netx_eth_priv *priv = netdev_priv(ndev); |
| 213 | |
| 214 | if (request_irq |
Joe Perches | a0607fd | 2009-11-18 23:29:17 -0800 | [diff] [blame] | 215 | (ndev->irq, netx_eth_interrupt, IRQF_SHARED, ndev->name, ndev)) |
Sascha Hauer | 92aa674 | 2006-06-22 07:11:13 +0200 | [diff] [blame] | 216 | return -EAGAIN; |
| 217 | |
| 218 | writel(ndev->dev_addr[0] | |
| 219 | ndev->dev_addr[1]<<8 | |
| 220 | ndev->dev_addr[2]<<16 | |
| 221 | ndev->dev_addr[3]<<24, |
| 222 | priv->xpec_base + NETX_XPEC_RAM_START_OFS + ETH_MAC_4321); |
| 223 | writel(ndev->dev_addr[4] | |
| 224 | ndev->dev_addr[5]<<8, |
| 225 | priv->xpec_base + NETX_XPEC_RAM_START_OFS + ETH_MAC_65); |
| 226 | |
| 227 | writel(LOCAL_CONFIG_LINK_STATUS_IRQ_EN | |
| 228 | LOCAL_CONFIG_CON_LO_IRQ_EN | |
| 229 | LOCAL_CONFIG_CON_HI_IRQ_EN | |
| 230 | LOCAL_CONFIG_IND_LO_IRQ_EN | |
| 231 | LOCAL_CONFIG_IND_HI_IRQ_EN, |
| 232 | priv->xpec_base + NETX_XPEC_RAM_START_OFS + |
| 233 | ETH_MAC_LOCAL_CONFIG); |
| 234 | |
| 235 | mii_check_media(&priv->mii, netif_msg_link(priv), 1); |
| 236 | netif_start_queue(ndev); |
| 237 | |
| 238 | return 0; |
| 239 | } |
| 240 | |
| 241 | static int netx_eth_close(struct net_device *ndev) |
| 242 | { |
| 243 | struct netx_eth_priv *priv = netdev_priv(ndev); |
| 244 | |
| 245 | netif_stop_queue(ndev); |
| 246 | |
| 247 | writel(0, |
| 248 | priv->xpec_base + NETX_XPEC_RAM_START_OFS + ETH_MAC_LOCAL_CONFIG); |
| 249 | |
| 250 | free_irq(ndev->irq, ndev); |
| 251 | |
| 252 | return 0; |
| 253 | } |
| 254 | |
| 255 | static void netx_eth_timeout(struct net_device *ndev) |
| 256 | { |
| 257 | struct netx_eth_priv *priv = netdev_priv(ndev); |
| 258 | int i; |
| 259 | |
| 260 | printk(KERN_ERR "%s: transmit timed out, resetting\n", ndev->name); |
| 261 | |
| 262 | spin_lock_irq(&priv->lock); |
| 263 | |
| 264 | xc_reset(priv->xc); |
| 265 | xc_start(priv->xc); |
| 266 | |
| 267 | for (i=2; i<=18; i++) |
| 268 | pfifo_push(EMPTY_PTR_FIFO(priv->id), |
| 269 | FIFO_PTR_FRAMENO(i) | FIFO_PTR_SEGMENT(priv->id)); |
| 270 | |
| 271 | spin_unlock_irq(&priv->lock); |
| 272 | |
| 273 | netif_wake_queue(ndev); |
| 274 | } |
| 275 | |
| 276 | static int |
| 277 | netx_eth_phy_read(struct net_device *ndev, int phy_id, int reg) |
| 278 | { |
| 279 | unsigned int val; |
| 280 | |
| 281 | val = MIIMU_SNRDY | MIIMU_PREAMBLE | MIIMU_PHYADDR(phy_id) | |
| 282 | MIIMU_REGADDR(reg) | MIIMU_PHY_NRES; |
| 283 | |
| 284 | writel(val, NETX_MIIMU); |
| 285 | while (readl(NETX_MIIMU) & MIIMU_SNRDY); |
| 286 | |
| 287 | return readl(NETX_MIIMU) >> 16; |
| 288 | |
| 289 | } |
| 290 | |
| 291 | static void |
| 292 | netx_eth_phy_write(struct net_device *ndev, int phy_id, int reg, int value) |
| 293 | { |
| 294 | unsigned int val; |
| 295 | |
| 296 | val = MIIMU_SNRDY | MIIMU_PREAMBLE | MIIMU_PHYADDR(phy_id) | |
| 297 | MIIMU_REGADDR(reg) | MIIMU_PHY_NRES | MIIMU_OPMODE_WRITE | |
| 298 | MIIMU_DATA(value); |
| 299 | |
| 300 | writel(val, NETX_MIIMU); |
| 301 | while (readl(NETX_MIIMU) & MIIMU_SNRDY); |
| 302 | } |
| 303 | |
Alexander Beregalov | cd732de | 2009-04-15 12:52:53 +0000 | [diff] [blame] | 304 | static const struct net_device_ops netx_eth_netdev_ops = { |
| 305 | .ndo_open = netx_eth_open, |
| 306 | .ndo_stop = netx_eth_close, |
| 307 | .ndo_start_xmit = netx_eth_hard_start_xmit, |
| 308 | .ndo_tx_timeout = netx_eth_timeout, |
Jiri Pirko | afc4b13 | 2011-08-16 06:29:01 +0000 | [diff] [blame] | 309 | .ndo_set_rx_mode = netx_eth_set_multicast_list, |
Alexander Beregalov | cd732de | 2009-04-15 12:52:53 +0000 | [diff] [blame] | 310 | .ndo_change_mtu = eth_change_mtu, |
| 311 | .ndo_validate_addr = eth_validate_addr, |
| 312 | .ndo_set_mac_address = eth_mac_addr, |
| 313 | }; |
| 314 | |
Sascha Hauer | 92aa674 | 2006-06-22 07:11:13 +0200 | [diff] [blame] | 315 | static int netx_eth_enable(struct net_device *ndev) |
| 316 | { |
| 317 | struct netx_eth_priv *priv = netdev_priv(ndev); |
| 318 | unsigned int mac4321, mac65; |
| 319 | int running, i; |
| 320 | |
| 321 | ether_setup(ndev); |
| 322 | |
Alexander Beregalov | cd732de | 2009-04-15 12:52:53 +0000 | [diff] [blame] | 323 | ndev->netdev_ops = &netx_eth_netdev_ops; |
Sascha Hauer | 92aa674 | 2006-06-22 07:11:13 +0200 | [diff] [blame] | 324 | ndev->watchdog_timeo = msecs_to_jiffies(5000); |
Sascha Hauer | 92aa674 | 2006-06-22 07:11:13 +0200 | [diff] [blame] | 325 | |
| 326 | priv->msg_enable = NETIF_MSG_LINK; |
| 327 | priv->mii.phy_id_mask = 0x1f; |
| 328 | priv->mii.reg_num_mask = 0x1f; |
| 329 | priv->mii.force_media = 0; |
| 330 | priv->mii.full_duplex = 0; |
| 331 | priv->mii.dev = ndev; |
| 332 | priv->mii.mdio_read = netx_eth_phy_read; |
| 333 | priv->mii.mdio_write = netx_eth_phy_write; |
| 334 | priv->mii.phy_id = INTERNAL_PHY_ADR + priv->id; |
| 335 | |
| 336 | running = xc_running(priv->xc); |
| 337 | xc_stop(priv->xc); |
| 338 | |
| 339 | /* if the xc engine is already running, assume the bootloader has |
| 340 | * loaded the firmware for us |
| 341 | */ |
| 342 | if (running) { |
| 343 | /* get Node Address from hardware */ |
| 344 | mac4321 = readl(priv->xpec_base + |
| 345 | NETX_XPEC_RAM_START_OFS + ETH_MAC_4321); |
| 346 | mac65 = readl(priv->xpec_base + |
| 347 | NETX_XPEC_RAM_START_OFS + ETH_MAC_65); |
| 348 | |
| 349 | ndev->dev_addr[0] = mac4321 & 0xff; |
| 350 | ndev->dev_addr[1] = (mac4321 >> 8) & 0xff; |
| 351 | ndev->dev_addr[2] = (mac4321 >> 16) & 0xff; |
| 352 | ndev->dev_addr[3] = (mac4321 >> 24) & 0xff; |
| 353 | ndev->dev_addr[4] = mac65 & 0xff; |
| 354 | ndev->dev_addr[5] = (mac65 >> 8) & 0xff; |
| 355 | } else { |
| 356 | if (xc_request_firmware(priv->xc)) { |
| 357 | printk(CARDNAME ": requesting firmware failed\n"); |
| 358 | return -ENODEV; |
| 359 | } |
| 360 | } |
| 361 | |
| 362 | xc_reset(priv->xc); |
| 363 | xc_start(priv->xc); |
| 364 | |
| 365 | if (!is_valid_ether_addr(ndev->dev_addr)) |
| 366 | printk("%s: Invalid ethernet MAC address. Please " |
| 367 | "set using ifconfig\n", ndev->name); |
| 368 | |
| 369 | for (i=2; i<=18; i++) |
| 370 | pfifo_push(EMPTY_PTR_FIFO(priv->id), |
| 371 | FIFO_PTR_FRAMENO(i) | FIFO_PTR_SEGMENT(priv->id)); |
| 372 | |
| 373 | return register_netdev(ndev); |
| 374 | |
| 375 | } |
| 376 | |
| 377 | static int netx_eth_drv_probe(struct platform_device *pdev) |
| 378 | { |
| 379 | struct netx_eth_priv *priv; |
| 380 | struct net_device *ndev; |
| 381 | struct netxeth_platform_data *pdata; |
| 382 | int ret; |
| 383 | |
| 384 | ndev = alloc_etherdev(sizeof (struct netx_eth_priv)); |
| 385 | if (!ndev) { |
Sascha Hauer | 92aa674 | 2006-06-22 07:11:13 +0200 | [diff] [blame] | 386 | ret = -ENOMEM; |
| 387 | goto exit; |
| 388 | } |
Sascha Hauer | 92aa674 | 2006-06-22 07:11:13 +0200 | [diff] [blame] | 389 | SET_NETDEV_DEV(ndev, &pdev->dev); |
| 390 | |
| 391 | platform_set_drvdata(pdev, ndev); |
| 392 | |
| 393 | priv = netdev_priv(ndev); |
| 394 | |
| 395 | pdata = (struct netxeth_platform_data *)pdev->dev.platform_data; |
| 396 | priv->xc = request_xc(pdata->xcno, &pdev->dev); |
| 397 | if (!priv->xc) { |
| 398 | dev_err(&pdev->dev, "unable to request xc engine\n"); |
| 399 | ret = -ENODEV; |
| 400 | goto exit_free_netdev; |
| 401 | } |
| 402 | |
| 403 | ndev->irq = priv->xc->irq; |
| 404 | priv->id = pdev->id; |
| 405 | priv->xpec_base = priv->xc->xpec_base; |
| 406 | priv->xmac_base = priv->xc->xmac_base; |
| 407 | priv->sram_base = priv->xc->sram_base; |
| 408 | |
Uwe Kleine-König | 2cc002c | 2008-12-03 22:18:59 -0800 | [diff] [blame] | 409 | spin_lock_init(&priv->lock); |
| 410 | |
Sascha Hauer | 92aa674 | 2006-06-22 07:11:13 +0200 | [diff] [blame] | 411 | ret = pfifo_request(PFIFO_MASK(priv->id)); |
| 412 | if (ret) { |
| 413 | printk("unable to request PFIFO\n"); |
| 414 | goto exit_free_xc; |
| 415 | } |
| 416 | |
| 417 | ret = netx_eth_enable(ndev); |
| 418 | if (ret) |
| 419 | goto exit_free_pfifo; |
| 420 | |
| 421 | return 0; |
| 422 | exit_free_pfifo: |
| 423 | pfifo_free(PFIFO_MASK(priv->id)); |
| 424 | exit_free_xc: |
| 425 | free_xc(priv->xc); |
| 426 | exit_free_netdev: |
| 427 | platform_set_drvdata(pdev, NULL); |
| 428 | free_netdev(ndev); |
| 429 | exit: |
| 430 | return ret; |
| 431 | } |
| 432 | |
| 433 | static int netx_eth_drv_remove(struct platform_device *pdev) |
| 434 | { |
| 435 | struct net_device *ndev = dev_get_drvdata(&pdev->dev); |
| 436 | struct netx_eth_priv *priv = netdev_priv(ndev); |
| 437 | |
| 438 | platform_set_drvdata(pdev, NULL); |
| 439 | |
| 440 | unregister_netdev(ndev); |
| 441 | xc_stop(priv->xc); |
| 442 | free_xc(priv->xc); |
| 443 | free_netdev(ndev); |
| 444 | pfifo_free(PFIFO_MASK(priv->id)); |
| 445 | |
| 446 | return 0; |
| 447 | } |
| 448 | |
| 449 | static int netx_eth_drv_suspend(struct platform_device *pdev, pm_message_t state) |
| 450 | { |
| 451 | dev_err(&pdev->dev, "suspend not implemented\n"); |
| 452 | return 0; |
| 453 | } |
| 454 | |
| 455 | static int netx_eth_drv_resume(struct platform_device *pdev) |
| 456 | { |
| 457 | dev_err(&pdev->dev, "resume not implemented\n"); |
| 458 | return 0; |
| 459 | } |
| 460 | |
| 461 | static struct platform_driver netx_eth_driver = { |
| 462 | .probe = netx_eth_drv_probe, |
| 463 | .remove = netx_eth_drv_remove, |
| 464 | .suspend = netx_eth_drv_suspend, |
| 465 | .resume = netx_eth_drv_resume, |
| 466 | .driver = { |
| 467 | .name = CARDNAME, |
| 468 | .owner = THIS_MODULE, |
| 469 | }, |
| 470 | }; |
| 471 | |
| 472 | static int __init netx_eth_init(void) |
| 473 | { |
| 474 | unsigned int phy_control, val; |
| 475 | |
| 476 | printk("NetX Ethernet driver\n"); |
| 477 | |
| 478 | phy_control = PHY_CONTROL_PHY_ADDRESS(INTERNAL_PHY_ADR>>1) | |
| 479 | PHY_CONTROL_PHY1_MODE(PHY_MODE_ALL) | |
| 480 | PHY_CONTROL_PHY1_AUTOMDIX | |
| 481 | PHY_CONTROL_PHY1_EN | |
| 482 | PHY_CONTROL_PHY0_MODE(PHY_MODE_ALL) | |
| 483 | PHY_CONTROL_PHY0_AUTOMDIX | |
| 484 | PHY_CONTROL_PHY0_EN | |
| 485 | PHY_CONTROL_CLK_XLATIN; |
| 486 | |
| 487 | val = readl(NETX_SYSTEM_IOC_ACCESS_KEY); |
| 488 | writel(val, NETX_SYSTEM_IOC_ACCESS_KEY); |
| 489 | |
| 490 | writel(phy_control | PHY_CONTROL_RESET, NETX_SYSTEM_PHY_CONTROL); |
| 491 | udelay(100); |
| 492 | |
| 493 | val = readl(NETX_SYSTEM_IOC_ACCESS_KEY); |
| 494 | writel(val, NETX_SYSTEM_IOC_ACCESS_KEY); |
| 495 | |
| 496 | writel(phy_control, NETX_SYSTEM_PHY_CONTROL); |
| 497 | |
| 498 | return platform_driver_register(&netx_eth_driver); |
| 499 | } |
| 500 | |
| 501 | static void __exit netx_eth_cleanup(void) |
| 502 | { |
| 503 | platform_driver_unregister(&netx_eth_driver); |
| 504 | } |
| 505 | |
| 506 | module_init(netx_eth_init); |
| 507 | module_exit(netx_eth_cleanup); |
| 508 | |
| 509 | MODULE_AUTHOR("Sascha Hauer, Pengutronix"); |
| 510 | MODULE_LICENSE("GPL"); |
Kay Sievers | 72abb46 | 2008-04-18 13:50:44 -0700 | [diff] [blame] | 511 | MODULE_ALIAS("platform:" CARDNAME); |
Ben Hutchings | 36c04a6 | 2009-11-07 11:37:36 +0000 | [diff] [blame] | 512 | MODULE_FIRMWARE("xc0.bin"); |
| 513 | MODULE_FIRMWARE("xc1.bin"); |
| 514 | MODULE_FIRMWARE("xc2.bin"); |