Paul Gortmaker | 3396c78 | 2012-01-27 13:36:01 +0000 | [diff] [blame] | 1 | /* drivers/net/ethernet/8390/ax88796.c |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 2 | * |
| 3 | * Copyright 2005,2007 Simtec Electronics |
| 4 | * Ben Dooks <ben@simtec.co.uk> |
| 5 | * |
| 6 | * Asix AX88796 10/100 Ethernet controller support |
| 7 | * Based on ne.c, by Donald Becker, et-al. |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License version 2 as |
| 11 | * published by the Free Software Foundation. |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 12 | */ |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 13 | |
| 14 | #include <linux/module.h> |
| 15 | #include <linux/kernel.h> |
| 16 | #include <linux/errno.h> |
| 17 | #include <linux/isapnp.h> |
| 18 | #include <linux/init.h> |
| 19 | #include <linux/interrupt.h> |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 20 | #include <linux/io.h> |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 21 | #include <linux/platform_device.h> |
| 22 | #include <linux/delay.h> |
| 23 | #include <linux/timer.h> |
| 24 | #include <linux/netdevice.h> |
| 25 | #include <linux/etherdevice.h> |
| 26 | #include <linux/ethtool.h> |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 27 | #include <linux/mdio-bitbang.h> |
| 28 | #include <linux/phy.h> |
Magnus Damm | 89e536a | 2007-09-28 22:42:16 -0700 | [diff] [blame] | 29 | #include <linux/eeprom_93cx6.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 30 | #include <linux/slab.h> |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 31 | |
| 32 | #include <net/ax88796.h> |
| 33 | |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 34 | |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 35 | /* Rename the lib8390.c functions to show that they are in this driver */ |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 36 | #define __ei_open ax_ei_open |
| 37 | #define __ei_close ax_ei_close |
| 38 | #define __ei_poll ax_ei_poll |
Magnus Damm | d57bc36 | 2009-01-14 21:05:55 -0800 | [diff] [blame] | 39 | #define __ei_start_xmit ax_ei_start_xmit |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 40 | #define __ei_tx_timeout ax_ei_tx_timeout |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 41 | #define __ei_get_stats ax_ei_get_stats |
Magnus Damm | d57bc36 | 2009-01-14 21:05:55 -0800 | [diff] [blame] | 42 | #define __ei_set_multicast_list ax_ei_set_multicast_list |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 43 | #define __ei_interrupt ax_ei_interrupt |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 44 | #define ____alloc_ei_netdev ax__alloc_ei_netdev |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 45 | #define __NS8390_init ax_NS8390_init |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 46 | |
| 47 | /* force unsigned long back to 'void __iomem *' */ |
| 48 | #define ax_convert_addr(_a) ((void __force __iomem *)(_a)) |
| 49 | |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 50 | #define ei_inb(_a) readb(ax_convert_addr(_a)) |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 51 | #define ei_outb(_v, _a) writeb(_v, ax_convert_addr(_a)) |
| 52 | |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 53 | #define ei_inb_p(_a) ei_inb(_a) |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 54 | #define ei_outb_p(_v, _a) ei_outb(_v, _a) |
| 55 | |
| 56 | /* define EI_SHIFT() to take into account our register offsets */ |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 57 | #define EI_SHIFT(x) (ei_local->reg_offset[(x)]) |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 58 | |
| 59 | /* Ensure we have our RCR base value */ |
| 60 | #define AX88796_PLATFORM |
| 61 | |
| 62 | static unsigned char version[] = "ax88796.c: Copyright 2005,2007 Simtec Electronics\n"; |
| 63 | |
| 64 | #include "lib8390.c" |
| 65 | |
| 66 | #define DRV_NAME "ax88796" |
| 67 | #define DRV_VERSION "1.00" |
| 68 | |
| 69 | /* from ne.c */ |
| 70 | #define NE_CMD EI_SHIFT(0x00) |
| 71 | #define NE_RESET EI_SHIFT(0x1f) |
| 72 | #define NE_DATAPORT EI_SHIFT(0x10) |
| 73 | |
| 74 | #define NE1SM_START_PG 0x20 /* First page of TX buffer */ |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 75 | #define NE1SM_STOP_PG 0x40 /* Last page +1 of RX ring */ |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 76 | #define NESM_START_PG 0x40 /* First page of TX buffer */ |
| 77 | #define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */ |
| 78 | |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 79 | #define AX_GPOC_PPDSET BIT(6) |
| 80 | |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 81 | /* device private data */ |
| 82 | |
| 83 | struct ax_device { |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 84 | struct mii_bus *mii_bus; |
| 85 | struct mdiobb_ctrl bb_ctrl; |
| 86 | struct phy_device *phy_dev; |
| 87 | void __iomem *addr_memr; |
| 88 | u8 reg_memr; |
| 89 | int link; |
| 90 | int speed; |
| 91 | int duplex; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 92 | |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 93 | void __iomem *map2; |
Marc Kleine-Budde | a54dc58 | 2011-02-21 10:43:31 +0100 | [diff] [blame] | 94 | const struct ax_plat_data *plat; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 95 | |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 96 | unsigned char running; |
| 97 | unsigned char resume_open; |
| 98 | unsigned int irqflags; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 99 | |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 100 | u32 reg_offsets[0x20]; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 101 | }; |
| 102 | |
| 103 | static inline struct ax_device *to_ax_dev(struct net_device *dev) |
| 104 | { |
| 105 | struct ei_device *ei_local = netdev_priv(dev); |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 106 | return (struct ax_device *)(ei_local + 1); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 107 | } |
| 108 | |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 109 | /* |
| 110 | * ax_initial_check |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 111 | * |
Adam Buchbinder | 48fc7f7 | 2012-09-19 21:48:00 -0400 | [diff] [blame] | 112 | * do an initial probe for the card to check whether it exists |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 113 | * and is functional |
| 114 | */ |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 115 | static int ax_initial_check(struct net_device *dev) |
| 116 | { |
| 117 | struct ei_device *ei_local = netdev_priv(dev); |
| 118 | void __iomem *ioaddr = ei_local->mem; |
| 119 | int reg0; |
| 120 | int regd; |
| 121 | |
| 122 | reg0 = ei_inb(ioaddr); |
| 123 | if (reg0 == 0xFF) |
| 124 | return -ENODEV; |
| 125 | |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 126 | ei_outb(E8390_NODMA + E8390_PAGE1 + E8390_STOP, ioaddr + E8390_CMD); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 127 | regd = ei_inb(ioaddr + 0x0d); |
| 128 | ei_outb(0xff, ioaddr + 0x0d); |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 129 | ei_outb(E8390_NODMA + E8390_PAGE0, ioaddr + E8390_CMD); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 130 | ei_inb(ioaddr + EN0_COUNTER0); /* Clear the counter by reading. */ |
| 131 | if (ei_inb(ioaddr + EN0_COUNTER0) != 0) { |
| 132 | ei_outb(reg0, ioaddr); |
| 133 | ei_outb(regd, ioaddr + 0x0d); /* Restore the old values. */ |
| 134 | return -ENODEV; |
| 135 | } |
| 136 | |
| 137 | return 0; |
| 138 | } |
| 139 | |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 140 | /* |
| 141 | * Hard reset the card. This used to pause for the same period that a |
| 142 | * 8390 reset command required, but that shouldn't be necessary. |
| 143 | */ |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 144 | static void ax_reset_8390(struct net_device *dev) |
| 145 | { |
| 146 | struct ei_device *ei_local = netdev_priv(dev); |
| 147 | unsigned long reset_start_time = jiffies; |
| 148 | void __iomem *addr = (void __iomem *)dev->base_addr; |
| 149 | |
| 150 | if (ei_debug > 1) |
Marc Kleine-Budde | 85ac616 | 2011-02-20 17:46:18 +0100 | [diff] [blame] | 151 | netdev_dbg(dev, "resetting the 8390 t=%ld\n", jiffies); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 152 | |
| 153 | ei_outb(ei_inb(addr + NE_RESET), addr + NE_RESET); |
| 154 | |
Marc Kleine-Budde | ea5a43d | 2011-02-19 22:08:33 +0100 | [diff] [blame] | 155 | ei_local->txing = 0; |
| 156 | ei_local->dmaing = 0; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 157 | |
| 158 | /* This check _should_not_ be necessary, omit eventually. */ |
| 159 | while ((ei_inb(addr + EN0_ISR) & ENISR_RESET) == 0) { |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 160 | if (jiffies - reset_start_time > 2 * HZ / 100) { |
Marc Kleine-Budde | 85ac616 | 2011-02-20 17:46:18 +0100 | [diff] [blame] | 161 | netdev_warn(dev, "%s: did not complete.\n", __func__); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 162 | break; |
| 163 | } |
| 164 | } |
| 165 | |
| 166 | ei_outb(ENISR_RESET, addr + EN0_ISR); /* Ack intr. */ |
| 167 | } |
| 168 | |
| 169 | |
| 170 | static void ax_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, |
| 171 | int ring_page) |
| 172 | { |
| 173 | struct ei_device *ei_local = netdev_priv(dev); |
| 174 | void __iomem *nic_base = ei_local->mem; |
| 175 | |
| 176 | /* This *shouldn't* happen. If it does, it's the last thing you'll see */ |
Marc Kleine-Budde | ea5a43d | 2011-02-19 22:08:33 +0100 | [diff] [blame] | 177 | if (ei_local->dmaing) { |
Marc Kleine-Budde | 85ac616 | 2011-02-20 17:46:18 +0100 | [diff] [blame] | 178 | netdev_err(dev, "DMAing conflict in %s " |
Ben Dooks | 237c5e8 | 2008-01-31 11:25:31 +0000 | [diff] [blame] | 179 | "[DMAstat:%d][irqlock:%d].\n", |
Marc Kleine-Budde | 85ac616 | 2011-02-20 17:46:18 +0100 | [diff] [blame] | 180 | __func__, |
Marc Kleine-Budde | ea5a43d | 2011-02-19 22:08:33 +0100 | [diff] [blame] | 181 | ei_local->dmaing, ei_local->irqlock); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 182 | return; |
| 183 | } |
| 184 | |
Marc Kleine-Budde | ea5a43d | 2011-02-19 22:08:33 +0100 | [diff] [blame] | 185 | ei_local->dmaing |= 0x01; |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 186 | ei_outb(E8390_NODMA + E8390_PAGE0 + E8390_START, nic_base + NE_CMD); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 187 | ei_outb(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO); |
| 188 | ei_outb(0, nic_base + EN0_RCNTHI); |
| 189 | ei_outb(0, nic_base + EN0_RSARLO); /* On page boundary */ |
| 190 | ei_outb(ring_page, nic_base + EN0_RSARHI); |
| 191 | ei_outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); |
| 192 | |
Marc Kleine-Budde | ea5a43d | 2011-02-19 22:08:33 +0100 | [diff] [blame] | 193 | if (ei_local->word16) |
Matthew Leach | b146ecd | 2012-12-10 09:12:38 +0000 | [diff] [blame] | 194 | ioread16_rep(nic_base + NE_DATAPORT, hdr, |
| 195 | sizeof(struct e8390_pkt_hdr) >> 1); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 196 | else |
Matthew Leach | b146ecd | 2012-12-10 09:12:38 +0000 | [diff] [blame] | 197 | ioread8_rep(nic_base + NE_DATAPORT, hdr, |
| 198 | sizeof(struct e8390_pkt_hdr)); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 199 | |
| 200 | ei_outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ |
Marc Kleine-Budde | ea5a43d | 2011-02-19 22:08:33 +0100 | [diff] [blame] | 201 | ei_local->dmaing &= ~0x01; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 202 | |
| 203 | le16_to_cpus(&hdr->count); |
| 204 | } |
| 205 | |
| 206 | |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 207 | /* |
| 208 | * Block input and output, similar to the Crynwr packet driver. If |
| 209 | * you are porting to a new ethercard, look at the packet driver |
| 210 | * source for hints. The NEx000 doesn't share the on-board packet |
| 211 | * memory -- you have to put the packet out through the "remote DMA" |
| 212 | * dataport using ei_outb. |
| 213 | */ |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 214 | static void ax_block_input(struct net_device *dev, int count, |
| 215 | struct sk_buff *skb, int ring_offset) |
| 216 | { |
| 217 | struct ei_device *ei_local = netdev_priv(dev); |
| 218 | void __iomem *nic_base = ei_local->mem; |
| 219 | char *buf = skb->data; |
| 220 | |
Marc Kleine-Budde | ea5a43d | 2011-02-19 22:08:33 +0100 | [diff] [blame] | 221 | if (ei_local->dmaing) { |
Marc Kleine-Budde | 85ac616 | 2011-02-20 17:46:18 +0100 | [diff] [blame] | 222 | netdev_err(dev, |
| 223 | "DMAing conflict in %s " |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 224 | "[DMAstat:%d][irqlock:%d].\n", |
Marc Kleine-Budde | 85ac616 | 2011-02-20 17:46:18 +0100 | [diff] [blame] | 225 | __func__, |
Marc Kleine-Budde | ea5a43d | 2011-02-19 22:08:33 +0100 | [diff] [blame] | 226 | ei_local->dmaing, ei_local->irqlock); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 227 | return; |
| 228 | } |
| 229 | |
Marc Kleine-Budde | ea5a43d | 2011-02-19 22:08:33 +0100 | [diff] [blame] | 230 | ei_local->dmaing |= 0x01; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 231 | |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 232 | ei_outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base + NE_CMD); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 233 | ei_outb(count & 0xff, nic_base + EN0_RCNTLO); |
| 234 | ei_outb(count >> 8, nic_base + EN0_RCNTHI); |
| 235 | ei_outb(ring_offset & 0xff, nic_base + EN0_RSARLO); |
| 236 | ei_outb(ring_offset >> 8, nic_base + EN0_RSARHI); |
| 237 | ei_outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); |
| 238 | |
Marc Kleine-Budde | ea5a43d | 2011-02-19 22:08:33 +0100 | [diff] [blame] | 239 | if (ei_local->word16) { |
Matthew Leach | b146ecd | 2012-12-10 09:12:38 +0000 | [diff] [blame] | 240 | ioread16_rep(nic_base + NE_DATAPORT, buf, count >> 1); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 241 | if (count & 0x01) |
| 242 | buf[count-1] = ei_inb(nic_base + NE_DATAPORT); |
| 243 | |
| 244 | } else { |
Matthew Leach | b146ecd | 2012-12-10 09:12:38 +0000 | [diff] [blame] | 245 | ioread8_rep(nic_base + NE_DATAPORT, buf, count); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 246 | } |
| 247 | |
Marc Kleine-Budde | ea5a43d | 2011-02-19 22:08:33 +0100 | [diff] [blame] | 248 | ei_local->dmaing &= ~1; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 249 | } |
| 250 | |
| 251 | static void ax_block_output(struct net_device *dev, int count, |
| 252 | const unsigned char *buf, const int start_page) |
| 253 | { |
| 254 | struct ei_device *ei_local = netdev_priv(dev); |
| 255 | void __iomem *nic_base = ei_local->mem; |
| 256 | unsigned long dma_start; |
| 257 | |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 258 | /* |
| 259 | * Round the count up for word writes. Do we need to do this? |
| 260 | * What effect will an odd byte count have on the 8390? I |
| 261 | * should check someday. |
| 262 | */ |
Marc Kleine-Budde | ea5a43d | 2011-02-19 22:08:33 +0100 | [diff] [blame] | 263 | if (ei_local->word16 && (count & 0x01)) |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 264 | count++; |
| 265 | |
| 266 | /* This *shouldn't* happen. If it does, it's the last thing you'll see */ |
Marc Kleine-Budde | ea5a43d | 2011-02-19 22:08:33 +0100 | [diff] [blame] | 267 | if (ei_local->dmaing) { |
Marc Kleine-Budde | 85ac616 | 2011-02-20 17:46:18 +0100 | [diff] [blame] | 268 | netdev_err(dev, "DMAing conflict in %s." |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 269 | "[DMAstat:%d][irqlock:%d]\n", |
Marc Kleine-Budde | 85ac616 | 2011-02-20 17:46:18 +0100 | [diff] [blame] | 270 | __func__, |
Marc Kleine-Budde | ea5a43d | 2011-02-19 22:08:33 +0100 | [diff] [blame] | 271 | ei_local->dmaing, ei_local->irqlock); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 272 | return; |
| 273 | } |
| 274 | |
Marc Kleine-Budde | ea5a43d | 2011-02-19 22:08:33 +0100 | [diff] [blame] | 275 | ei_local->dmaing |= 0x01; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 276 | /* We should already be in page 0, but to be safe... */ |
| 277 | ei_outb(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD); |
| 278 | |
| 279 | ei_outb(ENISR_RDC, nic_base + EN0_ISR); |
| 280 | |
| 281 | /* Now the normal output. */ |
| 282 | ei_outb(count & 0xff, nic_base + EN0_RCNTLO); |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 283 | ei_outb(count >> 8, nic_base + EN0_RCNTHI); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 284 | ei_outb(0x00, nic_base + EN0_RSARLO); |
| 285 | ei_outb(start_page, nic_base + EN0_RSARHI); |
| 286 | |
| 287 | ei_outb(E8390_RWRITE+E8390_START, nic_base + NE_CMD); |
Marc Kleine-Budde | ea5a43d | 2011-02-19 22:08:33 +0100 | [diff] [blame] | 288 | if (ei_local->word16) |
Matthew Leach | b146ecd | 2012-12-10 09:12:38 +0000 | [diff] [blame] | 289 | iowrite16_rep(nic_base + NE_DATAPORT, buf, count >> 1); |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 290 | else |
Matthew Leach | b146ecd | 2012-12-10 09:12:38 +0000 | [diff] [blame] | 291 | iowrite8_rep(nic_base + NE_DATAPORT, buf, count); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 292 | |
| 293 | dma_start = jiffies; |
| 294 | |
| 295 | while ((ei_inb(nic_base + EN0_ISR) & ENISR_RDC) == 0) { |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 296 | if (jiffies - dma_start > 2 * HZ / 100) { /* 20ms */ |
Marc Kleine-Budde | 85ac616 | 2011-02-20 17:46:18 +0100 | [diff] [blame] | 297 | netdev_warn(dev, "timeout waiting for Tx RDC.\n"); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 298 | ax_reset_8390(dev); |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 299 | ax_NS8390_init(dev, 1); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 300 | break; |
| 301 | } |
| 302 | } |
| 303 | |
| 304 | ei_outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ |
Marc Kleine-Budde | ea5a43d | 2011-02-19 22:08:33 +0100 | [diff] [blame] | 305 | ei_local->dmaing &= ~0x01; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 306 | } |
| 307 | |
| 308 | /* definitions for accessing MII/EEPROM interface */ |
| 309 | |
| 310 | #define AX_MEMR EI_SHIFT(0x14) |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 311 | #define AX_MEMR_MDC BIT(0) |
| 312 | #define AX_MEMR_MDIR BIT(1) |
| 313 | #define AX_MEMR_MDI BIT(2) |
| 314 | #define AX_MEMR_MDO BIT(3) |
| 315 | #define AX_MEMR_EECS BIT(4) |
| 316 | #define AX_MEMR_EEI BIT(5) |
| 317 | #define AX_MEMR_EEO BIT(6) |
| 318 | #define AX_MEMR_EECLK BIT(7) |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 319 | |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 320 | static void ax_handle_link_change(struct net_device *dev) |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 321 | { |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 322 | struct ax_device *ax = to_ax_dev(dev); |
| 323 | struct phy_device *phy_dev = ax->phy_dev; |
| 324 | int status_change = 0; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 325 | |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 326 | if (phy_dev->link && ((ax->speed != phy_dev->speed) || |
| 327 | (ax->duplex != phy_dev->duplex))) { |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 328 | |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 329 | ax->speed = phy_dev->speed; |
| 330 | ax->duplex = phy_dev->duplex; |
| 331 | status_change = 1; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 332 | } |
| 333 | |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 334 | if (phy_dev->link != ax->link) { |
| 335 | if (!phy_dev->link) { |
| 336 | ax->speed = 0; |
| 337 | ax->duplex = -1; |
| 338 | } |
| 339 | ax->link = phy_dev->link; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 340 | |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 341 | status_change = 1; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 342 | } |
| 343 | |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 344 | if (status_change) |
| 345 | phy_print_status(phy_dev); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 346 | } |
| 347 | |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 348 | static int ax_mii_probe(struct net_device *dev) |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 349 | { |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 350 | struct ax_device *ax = to_ax_dev(dev); |
| 351 | struct phy_device *phy_dev = NULL; |
| 352 | int ret; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 353 | |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 354 | /* find the first phy */ |
| 355 | phy_dev = phy_find_first(ax->mii_bus); |
| 356 | if (!phy_dev) { |
| 357 | netdev_err(dev, "no PHY found\n"); |
| 358 | return -ENODEV; |
| 359 | } |
| 360 | |
Florian Fainelli | f9a8f83 | 2013-01-14 00:52:52 +0000 | [diff] [blame] | 361 | ret = phy_connect_direct(dev, phy_dev, ax_handle_link_change, |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 362 | PHY_INTERFACE_MODE_MII); |
| 363 | if (ret) { |
| 364 | netdev_err(dev, "Could not attach to PHY\n"); |
| 365 | return ret; |
| 366 | } |
| 367 | |
| 368 | /* mask with MAC supported features */ |
| 369 | phy_dev->supported &= PHY_BASIC_FEATURES; |
| 370 | phy_dev->advertising = phy_dev->supported; |
| 371 | |
| 372 | ax->phy_dev = phy_dev; |
| 373 | |
| 374 | netdev_info(dev, "PHY driver [%s] (mii_bus:phy_addr=%s, irq=%d)\n", |
| 375 | phy_dev->drv->name, dev_name(&phy_dev->dev), phy_dev->irq); |
| 376 | |
| 377 | return 0; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 378 | } |
| 379 | |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 380 | static void ax_phy_switch(struct net_device *dev, int on) |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 381 | { |
Joe Perches | ece4915 | 2010-11-15 11:12:31 +0000 | [diff] [blame] | 382 | struct ei_device *ei_local = netdev_priv(dev); |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 383 | struct ax_device *ax = to_ax_dev(dev); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 384 | |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 385 | u8 reg_gpoc = ax->plat->gpoc_val; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 386 | |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 387 | if (!!on) |
| 388 | reg_gpoc &= ~AX_GPOC_PPDSET; |
| 389 | else |
| 390 | reg_gpoc |= AX_GPOC_PPDSET; |
| 391 | |
| 392 | ei_outb(reg_gpoc, ei_local->mem + EI_SHIFT(0x17)); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 393 | } |
| 394 | |
| 395 | static int ax_open(struct net_device *dev) |
| 396 | { |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 397 | struct ax_device *ax = to_ax_dev(dev); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 398 | int ret; |
| 399 | |
Marc Kleine-Budde | 85ac616 | 2011-02-20 17:46:18 +0100 | [diff] [blame] | 400 | netdev_dbg(dev, "open\n"); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 401 | |
Daniel Mack | 47cb035 | 2009-03-24 23:31:22 -0700 | [diff] [blame] | 402 | ret = request_irq(dev->irq, ax_ei_interrupt, ax->irqflags, |
| 403 | dev->name, dev); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 404 | if (ret) |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 405 | goto failed_request_irq; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 406 | |
| 407 | /* turn the phy on (if turned off) */ |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 408 | ax_phy_switch(dev, 1); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 409 | |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 410 | ret = ax_mii_probe(dev); |
| 411 | if (ret) |
| 412 | goto failed_mii_probe; |
| 413 | phy_start(ax->phy_dev); |
| 414 | |
| 415 | ret = ax_ei_open(dev); |
| 416 | if (ret) |
| 417 | goto failed_ax_ei_open; |
| 418 | |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 419 | ax->running = 1; |
| 420 | |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 421 | return 0; |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 422 | |
| 423 | failed_ax_ei_open: |
| 424 | phy_disconnect(ax->phy_dev); |
| 425 | failed_mii_probe: |
| 426 | ax_phy_switch(dev, 0); |
| 427 | free_irq(dev->irq, dev); |
| 428 | failed_request_irq: |
| 429 | return ret; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 430 | } |
| 431 | |
| 432 | static int ax_close(struct net_device *dev) |
| 433 | { |
| 434 | struct ax_device *ax = to_ax_dev(dev); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 435 | |
Marc Kleine-Budde | 85ac616 | 2011-02-20 17:46:18 +0100 | [diff] [blame] | 436 | netdev_dbg(dev, "close\n"); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 437 | |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 438 | ax->running = 0; |
| 439 | wmb(); |
| 440 | |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 441 | ax_ei_close(dev); |
| 442 | |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 443 | /* turn the phy off */ |
| 444 | ax_phy_switch(dev, 0); |
| 445 | phy_disconnect(ax->phy_dev); |
| 446 | |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 447 | free_irq(dev->irq, dev); |
| 448 | return 0; |
| 449 | } |
| 450 | |
| 451 | static int ax_ioctl(struct net_device *dev, struct ifreq *req, int cmd) |
| 452 | { |
| 453 | struct ax_device *ax = to_ax_dev(dev); |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 454 | struct phy_device *phy_dev = ax->phy_dev; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 455 | |
| 456 | if (!netif_running(dev)) |
| 457 | return -EINVAL; |
| 458 | |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 459 | if (!phy_dev) |
| 460 | return -ENODEV; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 461 | |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 462 | return phy_mii_ioctl(phy_dev, req, cmd); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 463 | } |
| 464 | |
| 465 | /* ethtool ops */ |
| 466 | |
| 467 | static void ax_get_drvinfo(struct net_device *dev, |
| 468 | struct ethtool_drvinfo *info) |
| 469 | { |
Marc Kleine-Budde | 0f442f5 | 2011-02-20 19:13:20 +0100 | [diff] [blame] | 470 | struct platform_device *pdev = to_platform_device(dev->dev.parent); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 471 | |
Jiri Pirko | 7826d43 | 2013-01-06 00:44:26 +0000 | [diff] [blame] | 472 | strlcpy(info->driver, DRV_NAME, sizeof(info->driver)); |
| 473 | strlcpy(info->version, DRV_VERSION, sizeof(info->version)); |
| 474 | strlcpy(info->bus_info, pdev->name, sizeof(info->bus_info)); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 475 | } |
| 476 | |
| 477 | static int ax_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 478 | { |
| 479 | struct ax_device *ax = to_ax_dev(dev); |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 480 | struct phy_device *phy_dev = ax->phy_dev; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 481 | |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 482 | if (!phy_dev) |
| 483 | return -ENODEV; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 484 | |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 485 | return phy_ethtool_gset(phy_dev, cmd); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 486 | } |
| 487 | |
| 488 | static int ax_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) |
| 489 | { |
| 490 | struct ax_device *ax = to_ax_dev(dev); |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 491 | struct phy_device *phy_dev = ax->phy_dev; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 492 | |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 493 | if (!phy_dev) |
| 494 | return -ENODEV; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 495 | |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 496 | return phy_ethtool_sset(phy_dev, cmd); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 497 | } |
| 498 | |
| 499 | static const struct ethtool_ops ax_ethtool_ops = { |
| 500 | .get_drvinfo = ax_get_drvinfo, |
| 501 | .get_settings = ax_get_settings, |
| 502 | .set_settings = ax_set_settings, |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 503 | .get_link = ethtool_op_get_link, |
Richard Cochran | 2241b67 | 2012-04-03 22:59:23 +0000 | [diff] [blame] | 504 | .get_ts_info = ethtool_op_get_ts_info, |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 505 | }; |
| 506 | |
Magnus Damm | 89e536a | 2007-09-28 22:42:16 -0700 | [diff] [blame] | 507 | #ifdef CONFIG_AX88796_93CX6 |
| 508 | static void ax_eeprom_register_read(struct eeprom_93cx6 *eeprom) |
| 509 | { |
| 510 | struct ei_device *ei_local = eeprom->data; |
| 511 | u8 reg = ei_inb(ei_local->mem + AX_MEMR); |
| 512 | |
| 513 | eeprom->reg_data_in = reg & AX_MEMR_EEI; |
| 514 | eeprom->reg_data_out = reg & AX_MEMR_EEO; /* Input pin */ |
| 515 | eeprom->reg_data_clock = reg & AX_MEMR_EECLK; |
| 516 | eeprom->reg_chip_select = reg & AX_MEMR_EECS; |
| 517 | } |
| 518 | |
| 519 | static void ax_eeprom_register_write(struct eeprom_93cx6 *eeprom) |
| 520 | { |
| 521 | struct ei_device *ei_local = eeprom->data; |
| 522 | u8 reg = ei_inb(ei_local->mem + AX_MEMR); |
| 523 | |
| 524 | reg &= ~(AX_MEMR_EEI | AX_MEMR_EECLK | AX_MEMR_EECS); |
| 525 | |
| 526 | if (eeprom->reg_data_in) |
| 527 | reg |= AX_MEMR_EEI; |
| 528 | if (eeprom->reg_data_clock) |
| 529 | reg |= AX_MEMR_EECLK; |
| 530 | if (eeprom->reg_chip_select) |
| 531 | reg |= AX_MEMR_EECS; |
| 532 | |
| 533 | ei_outb(reg, ei_local->mem + AX_MEMR); |
| 534 | udelay(10); |
| 535 | } |
| 536 | #endif |
| 537 | |
Magnus Damm | d57bc36 | 2009-01-14 21:05:55 -0800 | [diff] [blame] | 538 | static const struct net_device_ops ax_netdev_ops = { |
| 539 | .ndo_open = ax_open, |
| 540 | .ndo_stop = ax_close, |
| 541 | .ndo_do_ioctl = ax_ioctl, |
| 542 | |
| 543 | .ndo_start_xmit = ax_ei_start_xmit, |
| 544 | .ndo_tx_timeout = ax_ei_tx_timeout, |
| 545 | .ndo_get_stats = ax_ei_get_stats, |
Jiri Pirko | afc4b13 | 2011-08-16 06:29:01 +0000 | [diff] [blame] | 546 | .ndo_set_rx_mode = ax_ei_set_multicast_list, |
Magnus Damm | d57bc36 | 2009-01-14 21:05:55 -0800 | [diff] [blame] | 547 | .ndo_validate_addr = eth_validate_addr, |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 548 | .ndo_set_mac_address = eth_mac_addr, |
Magnus Damm | d57bc36 | 2009-01-14 21:05:55 -0800 | [diff] [blame] | 549 | .ndo_change_mtu = eth_change_mtu, |
| 550 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 551 | .ndo_poll_controller = ax_ei_poll, |
| 552 | #endif |
| 553 | }; |
| 554 | |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 555 | static void ax_bb_mdc(struct mdiobb_ctrl *ctrl, int level) |
| 556 | { |
| 557 | struct ax_device *ax = container_of(ctrl, struct ax_device, bb_ctrl); |
| 558 | |
| 559 | if (level) |
| 560 | ax->reg_memr |= AX_MEMR_MDC; |
| 561 | else |
| 562 | ax->reg_memr &= ~AX_MEMR_MDC; |
| 563 | |
| 564 | ei_outb(ax->reg_memr, ax->addr_memr); |
| 565 | } |
| 566 | |
| 567 | static void ax_bb_dir(struct mdiobb_ctrl *ctrl, int output) |
| 568 | { |
| 569 | struct ax_device *ax = container_of(ctrl, struct ax_device, bb_ctrl); |
| 570 | |
| 571 | if (output) |
| 572 | ax->reg_memr &= ~AX_MEMR_MDIR; |
| 573 | else |
| 574 | ax->reg_memr |= AX_MEMR_MDIR; |
| 575 | |
| 576 | ei_outb(ax->reg_memr, ax->addr_memr); |
| 577 | } |
| 578 | |
| 579 | static void ax_bb_set_data(struct mdiobb_ctrl *ctrl, int value) |
| 580 | { |
| 581 | struct ax_device *ax = container_of(ctrl, struct ax_device, bb_ctrl); |
| 582 | |
| 583 | if (value) |
| 584 | ax->reg_memr |= AX_MEMR_MDO; |
| 585 | else |
| 586 | ax->reg_memr &= ~AX_MEMR_MDO; |
| 587 | |
| 588 | ei_outb(ax->reg_memr, ax->addr_memr); |
| 589 | } |
| 590 | |
| 591 | static int ax_bb_get_data(struct mdiobb_ctrl *ctrl) |
| 592 | { |
| 593 | struct ax_device *ax = container_of(ctrl, struct ax_device, bb_ctrl); |
| 594 | int reg_memr = ei_inb(ax->addr_memr); |
| 595 | |
| 596 | return reg_memr & AX_MEMR_MDI ? 1 : 0; |
| 597 | } |
| 598 | |
| 599 | static struct mdiobb_ops bb_ops = { |
| 600 | .owner = THIS_MODULE, |
| 601 | .set_mdc = ax_bb_mdc, |
| 602 | .set_mdio_dir = ax_bb_dir, |
| 603 | .set_mdio_data = ax_bb_set_data, |
| 604 | .get_mdio_data = ax_bb_get_data, |
| 605 | }; |
| 606 | |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 607 | /* setup code */ |
| 608 | |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 609 | static int ax_mii_init(struct net_device *dev) |
| 610 | { |
| 611 | struct platform_device *pdev = to_platform_device(dev->dev.parent); |
| 612 | struct ei_device *ei_local = netdev_priv(dev); |
| 613 | struct ax_device *ax = to_ax_dev(dev); |
| 614 | int err, i; |
| 615 | |
| 616 | ax->bb_ctrl.ops = &bb_ops; |
| 617 | ax->addr_memr = ei_local->mem + AX_MEMR; |
| 618 | ax->mii_bus = alloc_mdio_bitbang(&ax->bb_ctrl); |
| 619 | if (!ax->mii_bus) { |
| 620 | err = -ENOMEM; |
| 621 | goto out; |
| 622 | } |
| 623 | |
| 624 | ax->mii_bus->name = "ax88796_mii_bus"; |
| 625 | ax->mii_bus->parent = dev->dev.parent; |
Florian Fainelli | fa84e72 | 2012-01-09 23:59:07 +0000 | [diff] [blame] | 626 | snprintf(ax->mii_bus->id, MII_BUS_ID_SIZE, "%s-%x", |
| 627 | pdev->name, pdev->id); |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 628 | |
| 629 | ax->mii_bus->irq = kmalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL); |
| 630 | if (!ax->mii_bus->irq) { |
| 631 | err = -ENOMEM; |
| 632 | goto out_free_mdio_bitbang; |
| 633 | } |
| 634 | |
| 635 | for (i = 0; i < PHY_MAX_ADDR; i++) |
| 636 | ax->mii_bus->irq[i] = PHY_POLL; |
| 637 | |
| 638 | err = mdiobus_register(ax->mii_bus); |
| 639 | if (err) |
| 640 | goto out_free_irq; |
| 641 | |
| 642 | return 0; |
| 643 | |
| 644 | out_free_irq: |
| 645 | kfree(ax->mii_bus->irq); |
| 646 | out_free_mdio_bitbang: |
| 647 | free_mdio_bitbang(ax->mii_bus); |
| 648 | out: |
| 649 | return err; |
| 650 | } |
| 651 | |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 652 | static void ax_initial_setup(struct net_device *dev, struct ei_device *ei_local) |
| 653 | { |
| 654 | void __iomem *ioaddr = ei_local->mem; |
| 655 | struct ax_device *ax = to_ax_dev(dev); |
| 656 | |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 657 | /* Select page 0 */ |
| 658 | ei_outb(E8390_NODMA + E8390_PAGE0 + E8390_STOP, ioaddr + E8390_CMD); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 659 | |
| 660 | /* set to byte access */ |
| 661 | ei_outb(ax->plat->dcr_val & ~1, ioaddr + EN0_DCFG); |
| 662 | ei_outb(ax->plat->gpoc_val, ioaddr + EI_SHIFT(0x17)); |
| 663 | } |
| 664 | |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 665 | /* |
| 666 | * ax_init_dev |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 667 | * |
| 668 | * initialise the specified device, taking care to note the MAC |
| 669 | * address it may already have (if configured), ensure |
| 670 | * the device is ready to be used by lib8390.c and registerd with |
| 671 | * the network layer. |
| 672 | */ |
Marc Kleine-Budde | 1cbece3 | 2011-02-19 23:07:09 +0100 | [diff] [blame] | 673 | static int ax_init_dev(struct net_device *dev) |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 674 | { |
| 675 | struct ei_device *ei_local = netdev_priv(dev); |
| 676 | struct ax_device *ax = to_ax_dev(dev); |
| 677 | void __iomem *ioaddr = ei_local->mem; |
| 678 | unsigned int start_page; |
| 679 | unsigned int stop_page; |
| 680 | int ret; |
| 681 | int i; |
| 682 | |
| 683 | ret = ax_initial_check(dev); |
| 684 | if (ret) |
| 685 | goto err_out; |
| 686 | |
| 687 | /* setup goes here */ |
| 688 | |
| 689 | ax_initial_setup(dev, ei_local); |
| 690 | |
| 691 | /* read the mac from the card prom if we need it */ |
| 692 | |
Marc Kleine-Budde | 1cbece3 | 2011-02-19 23:07:09 +0100 | [diff] [blame] | 693 | if (ax->plat->flags & AXFLG_HAS_EEPROM) { |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 694 | unsigned char SA_prom[32]; |
| 695 | |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 696 | for (i = 0; i < sizeof(SA_prom); i += 2) { |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 697 | SA_prom[i] = ei_inb(ioaddr + NE_DATAPORT); |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 698 | SA_prom[i + 1] = ei_inb(ioaddr + NE_DATAPORT); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 699 | } |
| 700 | |
| 701 | if (ax->plat->wordlength == 2) |
| 702 | for (i = 0; i < 16; i++) |
| 703 | SA_prom[i] = SA_prom[i+i]; |
| 704 | |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 705 | memcpy(dev->dev_addr, SA_prom, 6); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 706 | } |
| 707 | |
Magnus Damm | 89e536a | 2007-09-28 22:42:16 -0700 | [diff] [blame] | 708 | #ifdef CONFIG_AX88796_93CX6 |
Marc Kleine-Budde | 1cbece3 | 2011-02-19 23:07:09 +0100 | [diff] [blame] | 709 | if (ax->plat->flags & AXFLG_HAS_93CX6) { |
Joe Perches | 1409a93 | 2013-08-01 16:17:49 -0700 | [diff] [blame] | 710 | unsigned char mac_addr[ETH_ALEN]; |
Magnus Damm | 89e536a | 2007-09-28 22:42:16 -0700 | [diff] [blame] | 711 | struct eeprom_93cx6 eeprom; |
| 712 | |
| 713 | eeprom.data = ei_local; |
| 714 | eeprom.register_read = ax_eeprom_register_read; |
| 715 | eeprom.register_write = ax_eeprom_register_write; |
| 716 | eeprom.width = PCI_EEPROM_WIDTH_93C56; |
| 717 | |
| 718 | eeprom_93cx6_multiread(&eeprom, 0, |
| 719 | (__le16 __force *)mac_addr, |
| 720 | sizeof(mac_addr) >> 1); |
| 721 | |
Joe Perches | 1409a93 | 2013-08-01 16:17:49 -0700 | [diff] [blame] | 722 | memcpy(dev->dev_addr, mac_addr, ETH_ALEN); |
Magnus Damm | 89e536a | 2007-09-28 22:42:16 -0700 | [diff] [blame] | 723 | } |
| 724 | #endif |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 725 | if (ax->plat->wordlength == 2) { |
| 726 | /* We must set the 8390 for word mode. */ |
| 727 | ei_outb(ax->plat->dcr_val, ei_local->mem + EN0_DCFG); |
| 728 | start_page = NESM_START_PG; |
| 729 | stop_page = NESM_STOP_PG; |
| 730 | } else { |
| 731 | start_page = NE1SM_START_PG; |
| 732 | stop_page = NE1SM_STOP_PG; |
| 733 | } |
| 734 | |
Marc Kleine-Budde | 1cbece3 | 2011-02-19 23:07:09 +0100 | [diff] [blame] | 735 | /* load the mac-address from the device */ |
| 736 | if (ax->plat->flags & AXFLG_MAC_FROMDEV) { |
| 737 | ei_outb(E8390_NODMA + E8390_PAGE1 + E8390_STOP, |
| 738 | ei_local->mem + E8390_CMD); /* 0x61 */ |
Joe Perches | 104bf3f | 2011-11-16 09:38:03 +0000 | [diff] [blame] | 739 | for (i = 0; i < ETH_ALEN; i++) |
Marc Kleine-Budde | 1cbece3 | 2011-02-19 23:07:09 +0100 | [diff] [blame] | 740 | dev->dev_addr[i] = |
| 741 | ei_inb(ioaddr + EN1_PHYS_SHIFT(i)); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 742 | } |
| 743 | |
Marc Kleine-Budde | 1cbece3 | 2011-02-19 23:07:09 +0100 | [diff] [blame] | 744 | if ((ax->plat->flags & AXFLG_MAC_FROMPLATFORM) && |
| 745 | ax->plat->mac_addr) |
Joe Perches | 104bf3f | 2011-11-16 09:38:03 +0000 | [diff] [blame] | 746 | memcpy(dev->dev_addr, ax->plat->mac_addr, ETH_ALEN); |
Marc Kleine-Budde | 1cbece3 | 2011-02-19 23:07:09 +0100 | [diff] [blame] | 747 | |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 748 | ax_reset_8390(dev); |
| 749 | |
Marc Kleine-Budde | ea5a43d | 2011-02-19 22:08:33 +0100 | [diff] [blame] | 750 | ei_local->name = "AX88796"; |
| 751 | ei_local->tx_start_page = start_page; |
| 752 | ei_local->stop_page = stop_page; |
| 753 | ei_local->word16 = (ax->plat->wordlength == 2); |
| 754 | ei_local->rx_start_page = start_page + TX_PAGES; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 755 | |
| 756 | #ifdef PACKETBUF_MEMSIZE |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 757 | /* Allow the packet buffer size to be overridden by know-it-alls. */ |
Marc Kleine-Budde | ea5a43d | 2011-02-19 22:08:33 +0100 | [diff] [blame] | 758 | ei_local->stop_page = ei_local->tx_start_page + PACKETBUF_MEMSIZE; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 759 | #endif |
| 760 | |
Marc Kleine-Budde | ea5a43d | 2011-02-19 22:08:33 +0100 | [diff] [blame] | 761 | ei_local->reset_8390 = &ax_reset_8390; |
| 762 | ei_local->block_input = &ax_block_input; |
| 763 | ei_local->block_output = &ax_block_output; |
| 764 | ei_local->get_8390_hdr = &ax_get_8390_hdr; |
| 765 | ei_local->priv = 0; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 766 | |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 767 | dev->netdev_ops = &ax_netdev_ops; |
| 768 | dev->ethtool_ops = &ax_ethtool_ops; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 769 | |
Marc Kleine-Budde | f6d7f2c | 2011-02-21 12:41:55 +0100 | [diff] [blame] | 770 | ret = ax_mii_init(dev); |
| 771 | if (ret) |
| 772 | goto out_irq; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 773 | |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 774 | ax_NS8390_init(dev, 0); |
| 775 | |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 776 | ret = register_netdev(dev); |
| 777 | if (ret) |
| 778 | goto out_irq; |
| 779 | |
Marc Kleine-Budde | 85ac616 | 2011-02-20 17:46:18 +0100 | [diff] [blame] | 780 | netdev_info(dev, "%dbit, irq %d, %lx, MAC: %pM\n", |
| 781 | ei_local->word16 ? 16 : 8, dev->irq, dev->base_addr, |
| 782 | dev->dev_addr); |
| 783 | |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 784 | return 0; |
| 785 | |
| 786 | out_irq: |
| 787 | /* cleanup irq */ |
| 788 | free_irq(dev->irq, dev); |
| 789 | err_out: |
| 790 | return ret; |
| 791 | } |
| 792 | |
Marc Kleine-Budde | c9218c3 | 2011-02-21 11:24:39 +0100 | [diff] [blame] | 793 | static int ax_remove(struct platform_device *pdev) |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 794 | { |
Marc Kleine-Budde | c9218c3 | 2011-02-21 11:24:39 +0100 | [diff] [blame] | 795 | struct net_device *dev = platform_get_drvdata(pdev); |
Marc Kleine-Budde | ea5a43d | 2011-02-19 22:08:33 +0100 | [diff] [blame] | 796 | struct ei_device *ei_local = netdev_priv(dev); |
Marc Kleine-Budde | c9218c3 | 2011-02-21 11:24:39 +0100 | [diff] [blame] | 797 | struct ax_device *ax = to_ax_dev(dev); |
| 798 | struct resource *mem; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 799 | |
| 800 | unregister_netdev(dev); |
| 801 | free_irq(dev->irq, dev); |
| 802 | |
Marc Kleine-Budde | ea5a43d | 2011-02-19 22:08:33 +0100 | [diff] [blame] | 803 | iounmap(ei_local->mem); |
Marc Kleine-Budde | c9218c3 | 2011-02-21 11:24:39 +0100 | [diff] [blame] | 804 | mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| 805 | release_mem_region(mem->start, resource_size(mem)); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 806 | |
| 807 | if (ax->map2) { |
| 808 | iounmap(ax->map2); |
Marc Kleine-Budde | c9218c3 | 2011-02-21 11:24:39 +0100 | [diff] [blame] | 809 | mem = platform_get_resource(pdev, IORESOURCE_MEM, 1); |
| 810 | release_mem_region(mem->start, resource_size(mem)); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 811 | } |
| 812 | |
| 813 | free_netdev(dev); |
| 814 | |
| 815 | return 0; |
| 816 | } |
| 817 | |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 818 | /* |
| 819 | * ax_probe |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 820 | * |
| 821 | * This is the entry point when the platform device system uses to |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 822 | * notify us of a new device to attach to. Allocate memory, find the |
| 823 | * resources and information passed, and map the necessary registers. |
| 824 | */ |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 825 | static int ax_probe(struct platform_device *pdev) |
| 826 | { |
| 827 | struct net_device *dev; |
Marc Kleine-Budde | ea5a43d | 2011-02-19 22:08:33 +0100 | [diff] [blame] | 828 | struct ei_device *ei_local; |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 829 | struct ax_device *ax; |
Marc Kleine-Budde | c9218c3 | 2011-02-21 11:24:39 +0100 | [diff] [blame] | 830 | struct resource *irq, *mem, *mem2; |
Arnd Bergmann | b261c20 | 2013-04-19 08:47:26 +0000 | [diff] [blame] | 831 | unsigned long mem_size, mem2_size = 0; |
Daniel Mack | 47cb035 | 2009-03-24 23:31:22 -0700 | [diff] [blame] | 832 | int ret = 0; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 833 | |
| 834 | dev = ax__alloc_ei_netdev(sizeof(struct ax_device)); |
| 835 | if (dev == NULL) |
| 836 | return -ENOMEM; |
| 837 | |
| 838 | /* ok, let's setup our device */ |
Marc Kleine-Budde | 85ac616 | 2011-02-20 17:46:18 +0100 | [diff] [blame] | 839 | SET_NETDEV_DEV(dev, &pdev->dev); |
Marc Kleine-Budde | ea5a43d | 2011-02-19 22:08:33 +0100 | [diff] [blame] | 840 | ei_local = netdev_priv(dev); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 841 | ax = to_ax_dev(dev); |
| 842 | |
Jingoo Han | a3ea280 | 2013-08-30 13:44:34 +0900 | [diff] [blame] | 843 | ax->plat = dev_get_platdata(&pdev->dev); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 844 | platform_set_drvdata(pdev, dev); |
| 845 | |
Marc Kleine-Budde | ea5a43d | 2011-02-19 22:08:33 +0100 | [diff] [blame] | 846 | ei_local->rxcr_base = ax->plat->rcr_val; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 847 | |
| 848 | /* find the platform resources */ |
Marc Kleine-Budde | c9218c3 | 2011-02-21 11:24:39 +0100 | [diff] [blame] | 849 | irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0); |
| 850 | if (!irq) { |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 851 | dev_err(&pdev->dev, "no IRQ specified\n"); |
Julia Lawall | 13eea19 | 2010-10-18 04:11:14 +0000 | [diff] [blame] | 852 | ret = -ENXIO; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 853 | goto exit_mem; |
| 854 | } |
Daniel Mack | 47cb035 | 2009-03-24 23:31:22 -0700 | [diff] [blame] | 855 | |
Marc Kleine-Budde | c9218c3 | 2011-02-21 11:24:39 +0100 | [diff] [blame] | 856 | dev->irq = irq->start; |
| 857 | ax->irqflags = irq->flags & IRQF_TRIGGER_MASK; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 858 | |
Marc Kleine-Budde | c9218c3 | 2011-02-21 11:24:39 +0100 | [diff] [blame] | 859 | mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| 860 | if (!mem) { |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 861 | dev_err(&pdev->dev, "no MEM specified\n"); |
| 862 | ret = -ENXIO; |
| 863 | goto exit_mem; |
| 864 | } |
| 865 | |
Marc Kleine-Budde | c9218c3 | 2011-02-21 11:24:39 +0100 | [diff] [blame] | 866 | mem_size = resource_size(mem); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 867 | |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 868 | /* |
| 869 | * setup the register offsets from either the platform data or |
| 870 | * by using the size of the resource provided |
| 871 | */ |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 872 | if (ax->plat->reg_offsets) |
Marc Kleine-Budde | ea5a43d | 2011-02-19 22:08:33 +0100 | [diff] [blame] | 873 | ei_local->reg_offset = ax->plat->reg_offsets; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 874 | else { |
Marc Kleine-Budde | ea5a43d | 2011-02-19 22:08:33 +0100 | [diff] [blame] | 875 | ei_local->reg_offset = ax->reg_offsets; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 876 | for (ret = 0; ret < 0x18; ret++) |
Marc Kleine-Budde | c9218c3 | 2011-02-21 11:24:39 +0100 | [diff] [blame] | 877 | ax->reg_offsets[ret] = (mem_size / 0x18) * ret; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 878 | } |
| 879 | |
Marc Kleine-Budde | c9218c3 | 2011-02-21 11:24:39 +0100 | [diff] [blame] | 880 | if (!request_mem_region(mem->start, mem_size, pdev->name)) { |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 881 | dev_err(&pdev->dev, "cannot reserve registers\n"); |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 882 | ret = -ENXIO; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 883 | goto exit_mem; |
| 884 | } |
| 885 | |
Marc Kleine-Budde | c9218c3 | 2011-02-21 11:24:39 +0100 | [diff] [blame] | 886 | ei_local->mem = ioremap(mem->start, mem_size); |
Marc Kleine-Budde | ea5a43d | 2011-02-19 22:08:33 +0100 | [diff] [blame] | 887 | dev->base_addr = (unsigned long)ei_local->mem; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 888 | |
Marc Kleine-Budde | ea5a43d | 2011-02-19 22:08:33 +0100 | [diff] [blame] | 889 | if (ei_local->mem == NULL) { |
Marc Kleine-Budde | c9218c3 | 2011-02-21 11:24:39 +0100 | [diff] [blame] | 890 | dev_err(&pdev->dev, "Cannot ioremap area %pR\n", mem); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 891 | |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 892 | ret = -ENXIO; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 893 | goto exit_req; |
| 894 | } |
| 895 | |
| 896 | /* look for reset area */ |
Marc Kleine-Budde | c9218c3 | 2011-02-21 11:24:39 +0100 | [diff] [blame] | 897 | mem2 = platform_get_resource(pdev, IORESOURCE_MEM, 1); |
| 898 | if (!mem2) { |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 899 | if (!ax->plat->reg_offsets) { |
| 900 | for (ret = 0; ret < 0x20; ret++) |
Marc Kleine-Budde | c9218c3 | 2011-02-21 11:24:39 +0100 | [diff] [blame] | 901 | ax->reg_offsets[ret] = (mem_size / 0x20) * ret; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 902 | } |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 903 | } else { |
Marc Kleine-Budde | c9218c3 | 2011-02-21 11:24:39 +0100 | [diff] [blame] | 904 | mem2_size = resource_size(mem2); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 905 | |
Marc Kleine-Budde | c9218c3 | 2011-02-21 11:24:39 +0100 | [diff] [blame] | 906 | if (!request_mem_region(mem2->start, mem2_size, pdev->name)) { |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 907 | dev_err(&pdev->dev, "cannot reserve registers\n"); |
| 908 | ret = -ENXIO; |
| 909 | goto exit_mem1; |
| 910 | } |
| 911 | |
Marc Kleine-Budde | c9218c3 | 2011-02-21 11:24:39 +0100 | [diff] [blame] | 912 | ax->map2 = ioremap(mem2->start, mem2_size); |
| 913 | if (!ax->map2) { |
Joe Perches | 898eb71 | 2007-10-18 03:06:30 -0700 | [diff] [blame] | 914 | dev_err(&pdev->dev, "cannot map reset register\n"); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 915 | ret = -ENXIO; |
| 916 | goto exit_mem2; |
| 917 | } |
| 918 | |
Marc Kleine-Budde | ea5a43d | 2011-02-19 22:08:33 +0100 | [diff] [blame] | 919 | ei_local->reg_offset[0x1f] = ax->map2 - ei_local->mem; |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 920 | } |
| 921 | |
| 922 | /* got resources, now initialise and register device */ |
Marc Kleine-Budde | 1cbece3 | 2011-02-19 23:07:09 +0100 | [diff] [blame] | 923 | ret = ax_init_dev(dev); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 924 | if (!ret) |
| 925 | return 0; |
| 926 | |
Marc Kleine-Budde | c9218c3 | 2011-02-21 11:24:39 +0100 | [diff] [blame] | 927 | if (!ax->map2) |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 928 | goto exit_mem1; |
| 929 | |
| 930 | iounmap(ax->map2); |
| 931 | |
| 932 | exit_mem2: |
Marc Kleine-Budde | c9218c3 | 2011-02-21 11:24:39 +0100 | [diff] [blame] | 933 | release_mem_region(mem2->start, mem2_size); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 934 | |
| 935 | exit_mem1: |
Marc Kleine-Budde | ea5a43d | 2011-02-19 22:08:33 +0100 | [diff] [blame] | 936 | iounmap(ei_local->mem); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 937 | |
| 938 | exit_req: |
Marc Kleine-Budde | c9218c3 | 2011-02-21 11:24:39 +0100 | [diff] [blame] | 939 | release_mem_region(mem->start, mem_size); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 940 | |
| 941 | exit_mem: |
| 942 | free_netdev(dev); |
| 943 | |
| 944 | return ret; |
| 945 | } |
| 946 | |
| 947 | /* suspend and resume */ |
| 948 | |
| 949 | #ifdef CONFIG_PM |
| 950 | static int ax_suspend(struct platform_device *dev, pm_message_t state) |
| 951 | { |
| 952 | struct net_device *ndev = platform_get_drvdata(dev); |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 953 | struct ax_device *ax = to_ax_dev(ndev); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 954 | |
| 955 | ax->resume_open = ax->running; |
| 956 | |
| 957 | netif_device_detach(ndev); |
| 958 | ax_close(ndev); |
| 959 | |
| 960 | return 0; |
| 961 | } |
| 962 | |
| 963 | static int ax_resume(struct platform_device *pdev) |
| 964 | { |
| 965 | struct net_device *ndev = platform_get_drvdata(pdev); |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 966 | struct ax_device *ax = to_ax_dev(ndev); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 967 | |
| 968 | ax_initial_setup(ndev, netdev_priv(ndev)); |
| 969 | ax_NS8390_init(ndev, ax->resume_open); |
| 970 | netif_device_attach(ndev); |
| 971 | |
| 972 | if (ax->resume_open) |
| 973 | ax_open(ndev); |
| 974 | |
| 975 | return 0; |
| 976 | } |
| 977 | |
| 978 | #else |
| 979 | #define ax_suspend NULL |
Marc Kleine-Budde | 9f07242 | 2011-02-19 17:07:40 +0100 | [diff] [blame] | 980 | #define ax_resume NULL |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 981 | #endif |
| 982 | |
| 983 | static struct platform_driver axdrv = { |
| 984 | .driver = { |
| 985 | .name = "ax88796", |
| 986 | .owner = THIS_MODULE, |
| 987 | }, |
| 988 | .probe = ax_probe, |
| 989 | .remove = ax_remove, |
| 990 | .suspend = ax_suspend, |
| 991 | .resume = ax_resume, |
| 992 | }; |
| 993 | |
Axel Lin | db62f68 | 2011-11-27 16:44:17 +0000 | [diff] [blame] | 994 | module_platform_driver(axdrv); |
Ben Dooks | 825a2ff | 2007-07-03 16:53:09 +0100 | [diff] [blame] | 995 | |
| 996 | MODULE_DESCRIPTION("AX88796 10/100 Ethernet platform driver"); |
| 997 | MODULE_AUTHOR("Ben Dooks, <ben@simtec.co.uk>"); |
| 998 | MODULE_LICENSE("GPL v2"); |
Kay Sievers | 72abb46 | 2008-04-18 13:50:44 -0700 | [diff] [blame] | 999 | MODULE_ALIAS("platform:ax88796"); |