Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Sonics Silicon Backplane PCI-Hostbus related functions. |
| 3 | * |
| 4 | * Copyright (C) 2005-2006 Michael Buesch <mb@bu3sch.de> |
| 5 | * Copyright (C) 2005 Martin Langer <martin-langer@gmx.de> |
| 6 | * Copyright (C) 2005 Stefano Brivio <st3@riseup.net> |
| 7 | * Copyright (C) 2005 Danny van Dyk <kugelfang@gentoo.org> |
| 8 | * Copyright (C) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch> |
| 9 | * |
| 10 | * Derived from the Broadcom 4400 device driver. |
| 11 | * Copyright (C) 2002 David S. Miller (davem@redhat.com) |
| 12 | * Fixed by Pekka Pietikainen (pp@ee.oulu.fi) |
| 13 | * Copyright (C) 2006 Broadcom Corporation. |
| 14 | * |
| 15 | * Licensed under the GNU/GPL. See COPYING for details. |
| 16 | */ |
| 17 | |
| 18 | #include <linux/ssb/ssb.h> |
| 19 | #include <linux/ssb/ssb_regs.h> |
| 20 | #include <linux/pci.h> |
| 21 | #include <linux/delay.h> |
| 22 | |
| 23 | #include "ssb_private.h" |
| 24 | |
| 25 | |
| 26 | /* Define the following to 1 to enable a printk on each coreswitch. */ |
| 27 | #define SSB_VERBOSE_PCICORESWITCH_DEBUG 0 |
| 28 | |
| 29 | |
| 30 | /* Lowlevel coreswitching */ |
| 31 | int ssb_pci_switch_coreidx(struct ssb_bus *bus, u8 coreidx) |
| 32 | { |
| 33 | int err; |
| 34 | int attempts = 0; |
| 35 | u32 cur_core; |
| 36 | |
| 37 | while (1) { |
| 38 | err = pci_write_config_dword(bus->host_pci, SSB_BAR0_WIN, |
| 39 | (coreidx * SSB_CORE_SIZE) |
| 40 | + SSB_ENUM_BASE); |
| 41 | if (err) |
| 42 | goto error; |
| 43 | err = pci_read_config_dword(bus->host_pci, SSB_BAR0_WIN, |
| 44 | &cur_core); |
| 45 | if (err) |
| 46 | goto error; |
| 47 | cur_core = (cur_core - SSB_ENUM_BASE) |
| 48 | / SSB_CORE_SIZE; |
| 49 | if (cur_core == coreidx) |
| 50 | break; |
| 51 | |
| 52 | if (attempts++ > SSB_BAR0_MAX_RETRIES) |
| 53 | goto error; |
| 54 | udelay(10); |
| 55 | } |
| 56 | return 0; |
| 57 | error: |
| 58 | ssb_printk(KERN_ERR PFX "Failed to switch to core %u\n", coreidx); |
| 59 | return -ENODEV; |
| 60 | } |
| 61 | |
| 62 | int ssb_pci_switch_core(struct ssb_bus *bus, |
| 63 | struct ssb_device *dev) |
| 64 | { |
| 65 | int err; |
| 66 | unsigned long flags; |
| 67 | |
| 68 | #if SSB_VERBOSE_PCICORESWITCH_DEBUG |
| 69 | ssb_printk(KERN_INFO PFX |
| 70 | "Switching to %s core, index %d\n", |
| 71 | ssb_core_name(dev->id.coreid), |
| 72 | dev->core_index); |
| 73 | #endif |
| 74 | |
| 75 | spin_lock_irqsave(&bus->bar_lock, flags); |
| 76 | err = ssb_pci_switch_coreidx(bus, dev->core_index); |
| 77 | if (!err) |
| 78 | bus->mapped_device = dev; |
| 79 | spin_unlock_irqrestore(&bus->bar_lock, flags); |
| 80 | |
| 81 | return err; |
| 82 | } |
| 83 | |
| 84 | /* Enable/disable the on board crystal oscillator and/or PLL. */ |
| 85 | int ssb_pci_xtal(struct ssb_bus *bus, u32 what, int turn_on) |
| 86 | { |
| 87 | int err; |
| 88 | u32 in, out, outenable; |
| 89 | u16 pci_status; |
| 90 | |
| 91 | if (bus->bustype != SSB_BUSTYPE_PCI) |
| 92 | return 0; |
| 93 | |
| 94 | err = pci_read_config_dword(bus->host_pci, SSB_GPIO_IN, &in); |
| 95 | if (err) |
| 96 | goto err_pci; |
| 97 | err = pci_read_config_dword(bus->host_pci, SSB_GPIO_OUT, &out); |
| 98 | if (err) |
| 99 | goto err_pci; |
| 100 | err = pci_read_config_dword(bus->host_pci, SSB_GPIO_OUT_ENABLE, &outenable); |
| 101 | if (err) |
| 102 | goto err_pci; |
| 103 | |
| 104 | outenable |= what; |
| 105 | |
| 106 | if (turn_on) { |
| 107 | /* Avoid glitching the clock if GPRS is already using it. |
| 108 | * We can't actually read the state of the PLLPD so we infer it |
| 109 | * by the value of XTAL_PU which *is* readable via gpioin. |
| 110 | */ |
| 111 | if (!(in & SSB_GPIO_XTAL)) { |
| 112 | if (what & SSB_GPIO_XTAL) { |
| 113 | /* Turn the crystal on */ |
| 114 | out |= SSB_GPIO_XTAL; |
| 115 | if (what & SSB_GPIO_PLL) |
| 116 | out |= SSB_GPIO_PLL; |
| 117 | err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT, out); |
| 118 | if (err) |
| 119 | goto err_pci; |
| 120 | err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT_ENABLE, |
| 121 | outenable); |
| 122 | if (err) |
| 123 | goto err_pci; |
| 124 | msleep(1); |
| 125 | } |
| 126 | if (what & SSB_GPIO_PLL) { |
| 127 | /* Turn the PLL on */ |
| 128 | out &= ~SSB_GPIO_PLL; |
| 129 | err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT, out); |
| 130 | if (err) |
| 131 | goto err_pci; |
| 132 | msleep(5); |
| 133 | } |
| 134 | } |
| 135 | |
| 136 | err = pci_read_config_word(bus->host_pci, PCI_STATUS, &pci_status); |
| 137 | if (err) |
| 138 | goto err_pci; |
| 139 | pci_status &= ~PCI_STATUS_SIG_TARGET_ABORT; |
| 140 | err = pci_write_config_word(bus->host_pci, PCI_STATUS, pci_status); |
| 141 | if (err) |
| 142 | goto err_pci; |
| 143 | } else { |
| 144 | if (what & SSB_GPIO_XTAL) { |
| 145 | /* Turn the crystal off */ |
| 146 | out &= ~SSB_GPIO_XTAL; |
| 147 | } |
| 148 | if (what & SSB_GPIO_PLL) { |
| 149 | /* Turn the PLL off */ |
| 150 | out |= SSB_GPIO_PLL; |
| 151 | } |
| 152 | err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT, out); |
| 153 | if (err) |
| 154 | goto err_pci; |
| 155 | err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT_ENABLE, outenable); |
| 156 | if (err) |
| 157 | goto err_pci; |
| 158 | } |
| 159 | |
| 160 | out: |
| 161 | return err; |
| 162 | |
| 163 | err_pci: |
| 164 | printk(KERN_ERR PFX "Error: ssb_pci_xtal() could not access PCI config space!\n"); |
| 165 | err = -EBUSY; |
| 166 | goto out; |
| 167 | } |
| 168 | |
| 169 | /* Get the word-offset for a SSB_SPROM_XXX define. */ |
| 170 | #define SPOFF(offset) (((offset) - SSB_SPROM_BASE) / sizeof(u16)) |
| 171 | /* Helper to extract some _offset, which is one of the SSB_SPROM_XXX defines. */ |
| 172 | #define SPEX(_outvar, _offset, _mask, _shift) \ |
| 173 | out->_outvar = ((in[SPOFF(_offset)] & (_mask)) >> (_shift)) |
| 174 | |
| 175 | static inline u8 ssb_crc8(u8 crc, u8 data) |
| 176 | { |
| 177 | /* Polynomial: x^8 + x^7 + x^6 + x^4 + x^2 + 1 */ |
| 178 | static const u8 t[] = { |
| 179 | 0x00, 0xF7, 0xB9, 0x4E, 0x25, 0xD2, 0x9C, 0x6B, |
| 180 | 0x4A, 0xBD, 0xF3, 0x04, 0x6F, 0x98, 0xD6, 0x21, |
| 181 | 0x94, 0x63, 0x2D, 0xDA, 0xB1, 0x46, 0x08, 0xFF, |
| 182 | 0xDE, 0x29, 0x67, 0x90, 0xFB, 0x0C, 0x42, 0xB5, |
| 183 | 0x7F, 0x88, 0xC6, 0x31, 0x5A, 0xAD, 0xE3, 0x14, |
| 184 | 0x35, 0xC2, 0x8C, 0x7B, 0x10, 0xE7, 0xA9, 0x5E, |
| 185 | 0xEB, 0x1C, 0x52, 0xA5, 0xCE, 0x39, 0x77, 0x80, |
| 186 | 0xA1, 0x56, 0x18, 0xEF, 0x84, 0x73, 0x3D, 0xCA, |
| 187 | 0xFE, 0x09, 0x47, 0xB0, 0xDB, 0x2C, 0x62, 0x95, |
| 188 | 0xB4, 0x43, 0x0D, 0xFA, 0x91, 0x66, 0x28, 0xDF, |
| 189 | 0x6A, 0x9D, 0xD3, 0x24, 0x4F, 0xB8, 0xF6, 0x01, |
| 190 | 0x20, 0xD7, 0x99, 0x6E, 0x05, 0xF2, 0xBC, 0x4B, |
| 191 | 0x81, 0x76, 0x38, 0xCF, 0xA4, 0x53, 0x1D, 0xEA, |
| 192 | 0xCB, 0x3C, 0x72, 0x85, 0xEE, 0x19, 0x57, 0xA0, |
| 193 | 0x15, 0xE2, 0xAC, 0x5B, 0x30, 0xC7, 0x89, 0x7E, |
| 194 | 0x5F, 0xA8, 0xE6, 0x11, 0x7A, 0x8D, 0xC3, 0x34, |
| 195 | 0xAB, 0x5C, 0x12, 0xE5, 0x8E, 0x79, 0x37, 0xC0, |
| 196 | 0xE1, 0x16, 0x58, 0xAF, 0xC4, 0x33, 0x7D, 0x8A, |
| 197 | 0x3F, 0xC8, 0x86, 0x71, 0x1A, 0xED, 0xA3, 0x54, |
| 198 | 0x75, 0x82, 0xCC, 0x3B, 0x50, 0xA7, 0xE9, 0x1E, |
| 199 | 0xD4, 0x23, 0x6D, 0x9A, 0xF1, 0x06, 0x48, 0xBF, |
| 200 | 0x9E, 0x69, 0x27, 0xD0, 0xBB, 0x4C, 0x02, 0xF5, |
| 201 | 0x40, 0xB7, 0xF9, 0x0E, 0x65, 0x92, 0xDC, 0x2B, |
| 202 | 0x0A, 0xFD, 0xB3, 0x44, 0x2F, 0xD8, 0x96, 0x61, |
| 203 | 0x55, 0xA2, 0xEC, 0x1B, 0x70, 0x87, 0xC9, 0x3E, |
| 204 | 0x1F, 0xE8, 0xA6, 0x51, 0x3A, 0xCD, 0x83, 0x74, |
| 205 | 0xC1, 0x36, 0x78, 0x8F, 0xE4, 0x13, 0x5D, 0xAA, |
| 206 | 0x8B, 0x7C, 0x32, 0xC5, 0xAE, 0x59, 0x17, 0xE0, |
| 207 | 0x2A, 0xDD, 0x93, 0x64, 0x0F, 0xF8, 0xB6, 0x41, |
| 208 | 0x60, 0x97, 0xD9, 0x2E, 0x45, 0xB2, 0xFC, 0x0B, |
| 209 | 0xBE, 0x49, 0x07, 0xF0, 0x9B, 0x6C, 0x22, 0xD5, |
| 210 | 0xF4, 0x03, 0x4D, 0xBA, 0xD1, 0x26, 0x68, 0x9F, |
| 211 | }; |
| 212 | return t[crc ^ data]; |
| 213 | } |
| 214 | |
Larry Finger | c272ef4 | 2007-11-09 16:56:25 -0600 | [diff] [blame] | 215 | static u8 ssb_sprom_crc(const u16 *sprom, u16 size) |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 216 | { |
| 217 | int word; |
| 218 | u8 crc = 0xFF; |
| 219 | |
Larry Finger | c272ef4 | 2007-11-09 16:56:25 -0600 | [diff] [blame] | 220 | for (word = 0; word < size - 1; word++) { |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 221 | crc = ssb_crc8(crc, sprom[word] & 0x00FF); |
| 222 | crc = ssb_crc8(crc, (sprom[word] & 0xFF00) >> 8); |
| 223 | } |
Larry Finger | c272ef4 | 2007-11-09 16:56:25 -0600 | [diff] [blame] | 224 | crc = ssb_crc8(crc, sprom[size - 1] & 0x00FF); |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 225 | crc ^= 0xFF; |
| 226 | |
| 227 | return crc; |
| 228 | } |
| 229 | |
Michael Buesch | e7ec2e3 | 2008-03-10 17:26:32 +0100 | [diff] [blame] | 230 | static int sprom_check_crc(const u16 *sprom, size_t size) |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 231 | { |
| 232 | u8 crc; |
| 233 | u8 expected_crc; |
| 234 | u16 tmp; |
| 235 | |
Larry Finger | c272ef4 | 2007-11-09 16:56:25 -0600 | [diff] [blame] | 236 | crc = ssb_sprom_crc(sprom, size); |
| 237 | tmp = sprom[size - 1] & SSB_SPROM_REVISION_CRC; |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 238 | expected_crc = tmp >> SSB_SPROM_REVISION_CRC_SHIFT; |
| 239 | if (crc != expected_crc) |
| 240 | return -EPROTO; |
| 241 | |
| 242 | return 0; |
| 243 | } |
| 244 | |
Michael Buesch | e7ec2e3 | 2008-03-10 17:26:32 +0100 | [diff] [blame] | 245 | static int sprom_do_read(struct ssb_bus *bus, u16 *sprom) |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 246 | { |
| 247 | int i; |
| 248 | |
Larry Finger | c272ef4 | 2007-11-09 16:56:25 -0600 | [diff] [blame] | 249 | for (i = 0; i < bus->sprom_size; i++) |
Michael Buesch | e861b98 | 2007-12-22 21:51:30 +0100 | [diff] [blame] | 250 | sprom[i] = ioread16(bus->mmio + SSB_SPROM_BASE + (i * 2)); |
Michael Buesch | e7ec2e3 | 2008-03-10 17:26:32 +0100 | [diff] [blame] | 251 | |
| 252 | return 0; |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 253 | } |
| 254 | |
| 255 | static int sprom_do_write(struct ssb_bus *bus, const u16 *sprom) |
| 256 | { |
| 257 | struct pci_dev *pdev = bus->host_pci; |
| 258 | int i, err; |
| 259 | u32 spromctl; |
Larry Finger | c272ef4 | 2007-11-09 16:56:25 -0600 | [diff] [blame] | 260 | u16 size = bus->sprom_size; |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 261 | |
| 262 | ssb_printk(KERN_NOTICE PFX "Writing SPROM. Do NOT turn off the power! Please stand by...\n"); |
| 263 | err = pci_read_config_dword(pdev, SSB_SPROMCTL, &spromctl); |
| 264 | if (err) |
| 265 | goto err_ctlreg; |
| 266 | spromctl |= SSB_SPROMCTL_WE; |
| 267 | err = pci_write_config_dword(pdev, SSB_SPROMCTL, spromctl); |
| 268 | if (err) |
| 269 | goto err_ctlreg; |
| 270 | ssb_printk(KERN_NOTICE PFX "[ 0%%"); |
| 271 | msleep(500); |
Larry Finger | c272ef4 | 2007-11-09 16:56:25 -0600 | [diff] [blame] | 272 | for (i = 0; i < size; i++) { |
| 273 | if (i == size / 4) |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 274 | ssb_printk("25%%"); |
Larry Finger | c272ef4 | 2007-11-09 16:56:25 -0600 | [diff] [blame] | 275 | else if (i == size / 2) |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 276 | ssb_printk("50%%"); |
Larry Finger | c272ef4 | 2007-11-09 16:56:25 -0600 | [diff] [blame] | 277 | else if (i == (size * 3) / 4) |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 278 | ssb_printk("75%%"); |
| 279 | else if (i % 2) |
| 280 | ssb_printk("."); |
| 281 | writew(sprom[i], bus->mmio + SSB_SPROM_BASE + (i * 2)); |
| 282 | mmiowb(); |
| 283 | msleep(20); |
| 284 | } |
| 285 | err = pci_read_config_dword(pdev, SSB_SPROMCTL, &spromctl); |
| 286 | if (err) |
| 287 | goto err_ctlreg; |
| 288 | spromctl &= ~SSB_SPROMCTL_WE; |
| 289 | err = pci_write_config_dword(pdev, SSB_SPROMCTL, spromctl); |
| 290 | if (err) |
| 291 | goto err_ctlreg; |
| 292 | msleep(500); |
| 293 | ssb_printk("100%% ]\n"); |
| 294 | ssb_printk(KERN_NOTICE PFX "SPROM written.\n"); |
| 295 | |
| 296 | return 0; |
| 297 | err_ctlreg: |
| 298 | ssb_printk(KERN_ERR PFX "Could not access SPROM control register.\n"); |
| 299 | return err; |
| 300 | } |
| 301 | |
Michael Buesch | e861b98 | 2007-12-22 21:51:30 +0100 | [diff] [blame] | 302 | static s8 r123_extract_antgain(u8 sprom_revision, const u16 *in, |
| 303 | u16 mask, u16 shift) |
| 304 | { |
| 305 | u16 v; |
| 306 | u8 gain; |
| 307 | |
| 308 | v = in[SPOFF(SSB_SPROM1_AGAIN)]; |
| 309 | gain = (v & mask) >> shift; |
| 310 | if (gain == 0xFF) |
| 311 | gain = 2; /* If unset use 2dBm */ |
| 312 | if (sprom_revision == 1) { |
| 313 | /* Convert to Q5.2 */ |
| 314 | gain <<= 2; |
| 315 | } else { |
| 316 | /* Q5.2 Fractional part is stored in 0xC0 */ |
| 317 | gain = ((gain & 0xC0) >> 6) | ((gain & 0x3F) << 2); |
| 318 | } |
| 319 | |
| 320 | return (s8)gain; |
| 321 | } |
| 322 | |
Larry Finger | c272ef4 | 2007-11-09 16:56:25 -0600 | [diff] [blame] | 323 | static void sprom_extract_r123(struct ssb_sprom *out, const u16 *in) |
| 324 | { |
| 325 | int i; |
| 326 | u16 v; |
Michael Buesch | e861b98 | 2007-12-22 21:51:30 +0100 | [diff] [blame] | 327 | s8 gain; |
Larry Finger | c272ef4 | 2007-11-09 16:56:25 -0600 | [diff] [blame] | 328 | u16 loc[3]; |
| 329 | |
| 330 | if (out->revision == 3) { /* rev 3 moved MAC */ |
| 331 | loc[0] = SSB_SPROM3_IL0MAC; |
| 332 | loc[1] = SSB_SPROM3_ET0MAC; |
| 333 | loc[2] = SSB_SPROM3_ET1MAC; |
| 334 | } else { |
| 335 | loc[0] = SSB_SPROM1_IL0MAC; |
| 336 | loc[1] = SSB_SPROM1_ET0MAC; |
| 337 | loc[2] = SSB_SPROM1_ET1MAC; |
| 338 | } |
| 339 | for (i = 0; i < 3; i++) { |
| 340 | v = in[SPOFF(loc[0]) + i]; |
| 341 | *(((__be16 *)out->il0mac) + i) = cpu_to_be16(v); |
| 342 | } |
| 343 | for (i = 0; i < 3; i++) { |
| 344 | v = in[SPOFF(loc[1]) + i]; |
| 345 | *(((__be16 *)out->et0mac) + i) = cpu_to_be16(v); |
| 346 | } |
| 347 | for (i = 0; i < 3; i++) { |
| 348 | v = in[SPOFF(loc[2]) + i]; |
| 349 | *(((__be16 *)out->et1mac) + i) = cpu_to_be16(v); |
| 350 | } |
| 351 | SPEX(et0phyaddr, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET0A, 0); |
| 352 | SPEX(et1phyaddr, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET1A, |
| 353 | SSB_SPROM1_ETHPHY_ET1A_SHIFT); |
Michael Buesch | e861b98 | 2007-12-22 21:51:30 +0100 | [diff] [blame] | 354 | SPEX(et0mdcport, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET0M, 14); |
| 355 | SPEX(et1mdcport, SSB_SPROM1_ETHPHY, SSB_SPROM1_ETHPHY_ET1M, 15); |
| 356 | SPEX(board_rev, SSB_SPROM1_BINF, SSB_SPROM1_BINF_BREV, 0); |
Larry Finger | c272ef4 | 2007-11-09 16:56:25 -0600 | [diff] [blame] | 357 | SPEX(country_code, SSB_SPROM1_BINF, SSB_SPROM1_BINF_CCODE, |
| 358 | SSB_SPROM1_BINF_CCODE_SHIFT); |
Michael Buesch | e861b98 | 2007-12-22 21:51:30 +0100 | [diff] [blame] | 359 | SPEX(ant_available_a, SSB_SPROM1_BINF, SSB_SPROM1_BINF_ANTA, |
| 360 | SSB_SPROM1_BINF_ANTA_SHIFT); |
| 361 | SPEX(ant_available_bg, SSB_SPROM1_BINF, SSB_SPROM1_BINF_ANTBG, |
| 362 | SSB_SPROM1_BINF_ANTBG_SHIFT); |
Larry Finger | c272ef4 | 2007-11-09 16:56:25 -0600 | [diff] [blame] | 363 | SPEX(pa0b0, SSB_SPROM1_PA0B0, 0xFFFF, 0); |
| 364 | SPEX(pa0b1, SSB_SPROM1_PA0B1, 0xFFFF, 0); |
| 365 | SPEX(pa0b2, SSB_SPROM1_PA0B2, 0xFFFF, 0); |
| 366 | SPEX(pa1b0, SSB_SPROM1_PA1B0, 0xFFFF, 0); |
| 367 | SPEX(pa1b1, SSB_SPROM1_PA1B1, 0xFFFF, 0); |
| 368 | SPEX(pa1b2, SSB_SPROM1_PA1B2, 0xFFFF, 0); |
| 369 | SPEX(gpio0, SSB_SPROM1_GPIOA, SSB_SPROM1_GPIOA_P0, 0); |
| 370 | SPEX(gpio1, SSB_SPROM1_GPIOA, SSB_SPROM1_GPIOA_P1, |
| 371 | SSB_SPROM1_GPIOA_P1_SHIFT); |
| 372 | SPEX(gpio2, SSB_SPROM1_GPIOB, SSB_SPROM1_GPIOB_P2, 0); |
| 373 | SPEX(gpio3, SSB_SPROM1_GPIOB, SSB_SPROM1_GPIOB_P3, |
| 374 | SSB_SPROM1_GPIOB_P3_SHIFT); |
| 375 | SPEX(maxpwr_a, SSB_SPROM1_MAXPWR, SSB_SPROM1_MAXPWR_A, |
| 376 | SSB_SPROM1_MAXPWR_A_SHIFT); |
| 377 | SPEX(maxpwr_bg, SSB_SPROM1_MAXPWR, SSB_SPROM1_MAXPWR_BG, 0); |
| 378 | SPEX(itssi_a, SSB_SPROM1_ITSSI, SSB_SPROM1_ITSSI_A, |
| 379 | SSB_SPROM1_ITSSI_A_SHIFT); |
| 380 | SPEX(itssi_bg, SSB_SPROM1_ITSSI, SSB_SPROM1_ITSSI_BG, 0); |
| 381 | SPEX(boardflags_lo, SSB_SPROM1_BFLLO, 0xFFFF, 0); |
Michael Buesch | af4b745 | 2008-01-13 21:08:24 +0100 | [diff] [blame] | 382 | if (out->revision >= 2) |
| 383 | SPEX(boardflags_hi, SSB_SPROM2_BFLHI, 0xFFFF, 0); |
Michael Buesch | e861b98 | 2007-12-22 21:51:30 +0100 | [diff] [blame] | 384 | |
| 385 | /* Extract the antenna gain values. */ |
| 386 | gain = r123_extract_antgain(out->revision, in, |
| 387 | SSB_SPROM1_AGAIN_BG, |
| 388 | SSB_SPROM1_AGAIN_BG_SHIFT); |
| 389 | out->antenna_gain.ghz24.a0 = gain; |
| 390 | out->antenna_gain.ghz24.a1 = gain; |
| 391 | out->antenna_gain.ghz24.a2 = gain; |
| 392 | out->antenna_gain.ghz24.a3 = gain; |
| 393 | gain = r123_extract_antgain(out->revision, in, |
| 394 | SSB_SPROM1_AGAIN_A, |
| 395 | SSB_SPROM1_AGAIN_A_SHIFT); |
| 396 | out->antenna_gain.ghz5.a0 = gain; |
| 397 | out->antenna_gain.ghz5.a1 = gain; |
| 398 | out->antenna_gain.ghz5.a2 = gain; |
| 399 | out->antenna_gain.ghz5.a3 = gain; |
Larry Finger | c272ef4 | 2007-11-09 16:56:25 -0600 | [diff] [blame] | 400 | } |
| 401 | |
| 402 | static void sprom_extract_r4(struct ssb_sprom *out, const u16 *in) |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 403 | { |
| 404 | int i; |
| 405 | u16 v; |
| 406 | |
Larry Finger | d3c319f | 2007-11-09 16:58:20 -0600 | [diff] [blame] | 407 | /* extract the equivalent of the r1 variables */ |
Larry Finger | c272ef4 | 2007-11-09 16:56:25 -0600 | [diff] [blame] | 408 | for (i = 0; i < 3; i++) { |
| 409 | v = in[SPOFF(SSB_SPROM4_IL0MAC) + i]; |
| 410 | *(((__be16 *)out->il0mac) + i) = cpu_to_be16(v); |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 411 | } |
Larry Finger | c272ef4 | 2007-11-09 16:56:25 -0600 | [diff] [blame] | 412 | for (i = 0; i < 3; i++) { |
| 413 | v = in[SPOFF(SSB_SPROM4_ET0MAC) + i]; |
| 414 | *(((__be16 *)out->et0mac) + i) = cpu_to_be16(v); |
| 415 | } |
| 416 | for (i = 0; i < 3; i++) { |
| 417 | v = in[SPOFF(SSB_SPROM4_ET1MAC) + i]; |
| 418 | *(((__be16 *)out->et1mac) + i) = cpu_to_be16(v); |
| 419 | } |
| 420 | SPEX(et0phyaddr, SSB_SPROM4_ETHPHY, SSB_SPROM4_ETHPHY_ET0A, 0); |
| 421 | SPEX(et1phyaddr, SSB_SPROM4_ETHPHY, SSB_SPROM4_ETHPHY_ET1A, |
| 422 | SSB_SPROM4_ETHPHY_ET1A_SHIFT); |
| 423 | SPEX(country_code, SSB_SPROM4_CCODE, 0xFFFF, 0); |
| 424 | SPEX(boardflags_lo, SSB_SPROM4_BFLLO, 0xFFFF, 0); |
Michael Buesch | af4b745 | 2008-01-13 21:08:24 +0100 | [diff] [blame] | 425 | SPEX(boardflags_hi, SSB_SPROM4_BFLHI, 0xFFFF, 0); |
Michael Buesch | e861b98 | 2007-12-22 21:51:30 +0100 | [diff] [blame] | 426 | SPEX(ant_available_a, SSB_SPROM4_ANTAVAIL, SSB_SPROM4_ANTAVAIL_A, |
| 427 | SSB_SPROM4_ANTAVAIL_A_SHIFT); |
| 428 | SPEX(ant_available_bg, SSB_SPROM4_ANTAVAIL, SSB_SPROM4_ANTAVAIL_BG, |
| 429 | SSB_SPROM4_ANTAVAIL_BG_SHIFT); |
Larry Finger | d3c319f | 2007-11-09 16:58:20 -0600 | [diff] [blame] | 430 | SPEX(maxpwr_bg, SSB_SPROM4_MAXP_BG, SSB_SPROM4_MAXP_BG_MASK, 0); |
| 431 | SPEX(itssi_bg, SSB_SPROM4_MAXP_BG, SSB_SPROM4_ITSSI_BG, |
| 432 | SSB_SPROM4_ITSSI_BG_SHIFT); |
| 433 | SPEX(maxpwr_a, SSB_SPROM4_MAXP_A, SSB_SPROM4_MAXP_A_MASK, 0); |
| 434 | SPEX(itssi_a, SSB_SPROM4_MAXP_A, SSB_SPROM4_ITSSI_A, |
| 435 | SSB_SPROM4_ITSSI_A_SHIFT); |
| 436 | SPEX(gpio0, SSB_SPROM4_GPIOA, SSB_SPROM4_GPIOA_P0, 0); |
| 437 | SPEX(gpio1, SSB_SPROM4_GPIOA, SSB_SPROM4_GPIOA_P1, |
| 438 | SSB_SPROM4_GPIOA_P1_SHIFT); |
| 439 | SPEX(gpio2, SSB_SPROM4_GPIOB, SSB_SPROM4_GPIOB_P2, 0); |
| 440 | SPEX(gpio3, SSB_SPROM4_GPIOB, SSB_SPROM4_GPIOB_P3, |
| 441 | SSB_SPROM4_GPIOB_P3_SHIFT); |
Michael Buesch | e861b98 | 2007-12-22 21:51:30 +0100 | [diff] [blame] | 442 | |
| 443 | /* Extract the antenna gain values. */ |
| 444 | SPEX(antenna_gain.ghz24.a0, SSB_SPROM4_AGAIN01, |
| 445 | SSB_SPROM4_AGAIN0, SSB_SPROM4_AGAIN0_SHIFT); |
| 446 | SPEX(antenna_gain.ghz24.a1, SSB_SPROM4_AGAIN01, |
| 447 | SSB_SPROM4_AGAIN1, SSB_SPROM4_AGAIN1_SHIFT); |
| 448 | SPEX(antenna_gain.ghz24.a2, SSB_SPROM4_AGAIN23, |
| 449 | SSB_SPROM4_AGAIN2, SSB_SPROM4_AGAIN2_SHIFT); |
| 450 | SPEX(antenna_gain.ghz24.a3, SSB_SPROM4_AGAIN23, |
| 451 | SSB_SPROM4_AGAIN3, SSB_SPROM4_AGAIN3_SHIFT); |
| 452 | memcpy(&out->antenna_gain.ghz5, &out->antenna_gain.ghz24, |
| 453 | sizeof(out->antenna_gain.ghz5)); |
| 454 | |
Larry Finger | c272ef4 | 2007-11-09 16:56:25 -0600 | [diff] [blame] | 455 | /* TODO - get remaining rev 4 stuff needed */ |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 456 | } |
| 457 | |
Larry Finger | c272ef4 | 2007-11-09 16:56:25 -0600 | [diff] [blame] | 458 | static int sprom_extract(struct ssb_bus *bus, struct ssb_sprom *out, |
| 459 | const u16 *in, u16 size) |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 460 | { |
| 461 | memset(out, 0, sizeof(*out)); |
| 462 | |
Larry Finger | c272ef4 | 2007-11-09 16:56:25 -0600 | [diff] [blame] | 463 | out->revision = in[size - 1] & 0x00FF; |
Michael Buesch | e861b98 | 2007-12-22 21:51:30 +0100 | [diff] [blame] | 464 | ssb_dprintk(KERN_DEBUG PFX "SPROM revision %d detected.\n", out->revision); |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 465 | if ((bus->chip_id & 0xFF00) == 0x4400) { |
| 466 | /* Workaround: The BCM44XX chip has a stupid revision |
| 467 | * number stored in the SPROM. |
| 468 | * Always extract r1. */ |
Larry Finger | c272ef4 | 2007-11-09 16:56:25 -0600 | [diff] [blame] | 469 | out->revision = 1; |
| 470 | sprom_extract_r123(out, in); |
Larry Finger | c272ef4 | 2007-11-09 16:56:25 -0600 | [diff] [blame] | 471 | } else if (bus->chip_id == 0x4321) { |
| 472 | /* the BCM4328 has a chipid == 0x4321 and a rev 4 SPROM */ |
| 473 | out->revision = 4; |
| 474 | sprom_extract_r4(out, in); |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 475 | } else { |
| 476 | if (out->revision == 0) |
| 477 | goto unsupported; |
Larry Finger | c272ef4 | 2007-11-09 16:56:25 -0600 | [diff] [blame] | 478 | if (out->revision >= 1 && out->revision <= 3) { |
| 479 | sprom_extract_r123(out, in); |
Larry Finger | c272ef4 | 2007-11-09 16:56:25 -0600 | [diff] [blame] | 480 | } |
| 481 | if (out->revision == 4) |
| 482 | sprom_extract_r4(out, in); |
| 483 | if (out->revision >= 5) |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 484 | goto unsupported; |
| 485 | } |
| 486 | |
Larry Finger | 4503183 | 2008-04-19 17:52:12 +0200 | [diff] [blame] | 487 | if (out->boardflags_lo == 0xFFFF) |
| 488 | out->boardflags_lo = 0; /* per specs */ |
| 489 | if (out->boardflags_hi == 0xFFFF) |
| 490 | out->boardflags_hi = 0; /* per specs */ |
| 491 | |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 492 | return 0; |
| 493 | unsupported: |
| 494 | ssb_printk(KERN_WARNING PFX "Unsupported SPROM revision %d " |
| 495 | "detected. Will extract v1\n", out->revision); |
Larry Finger | d3c319f | 2007-11-09 16:58:20 -0600 | [diff] [blame] | 496 | sprom_extract_r123(out, in); |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 497 | return 0; |
| 498 | } |
| 499 | |
| 500 | static int ssb_pci_sprom_get(struct ssb_bus *bus, |
| 501 | struct ssb_sprom *sprom) |
| 502 | { |
| 503 | int err = -ENOMEM; |
| 504 | u16 *buf; |
| 505 | |
Larry Finger | c272ef4 | 2007-11-09 16:56:25 -0600 | [diff] [blame] | 506 | buf = kcalloc(SSB_SPROMSIZE_WORDS_R123, sizeof(u16), GFP_KERNEL); |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 507 | if (!buf) |
| 508 | goto out; |
Larry Finger | c272ef4 | 2007-11-09 16:56:25 -0600 | [diff] [blame] | 509 | bus->sprom_size = SSB_SPROMSIZE_WORDS_R123; |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 510 | sprom_do_read(bus, buf); |
Larry Finger | c272ef4 | 2007-11-09 16:56:25 -0600 | [diff] [blame] | 511 | err = sprom_check_crc(buf, bus->sprom_size); |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 512 | if (err) { |
Larry.Finger@lwfinger.net | 2afc490 | 2008-04-19 16:24:09 +0200 | [diff] [blame] | 513 | /* try for a 440 byte SPROM - revision 4 and higher */ |
| 514 | kfree(buf); |
| 515 | buf = kcalloc(SSB_SPROMSIZE_WORDS_R4, sizeof(u16), |
| 516 | GFP_KERNEL); |
| 517 | if (!buf) |
| 518 | goto out; |
| 519 | bus->sprom_size = SSB_SPROMSIZE_WORDS_R4; |
| 520 | sprom_do_read(bus, buf); |
| 521 | err = sprom_check_crc(buf, bus->sprom_size); |
Larry Finger | c272ef4 | 2007-11-09 16:56:25 -0600 | [diff] [blame] | 522 | if (err) |
| 523 | ssb_printk(KERN_WARNING PFX "WARNING: Invalid" |
| 524 | " SPROM CRC (corrupt SPROM)\n"); |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 525 | } |
Larry Finger | c272ef4 | 2007-11-09 16:56:25 -0600 | [diff] [blame] | 526 | err = sprom_extract(bus, sprom, buf, bus->sprom_size); |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 527 | |
| 528 | kfree(buf); |
| 529 | out: |
| 530 | return err; |
| 531 | } |
| 532 | |
| 533 | static void ssb_pci_get_boardinfo(struct ssb_bus *bus, |
| 534 | struct ssb_boardinfo *bi) |
| 535 | { |
| 536 | pci_read_config_word(bus->host_pci, PCI_SUBSYSTEM_VENDOR_ID, |
| 537 | &bi->vendor); |
| 538 | pci_read_config_word(bus->host_pci, PCI_SUBSYSTEM_ID, |
| 539 | &bi->type); |
| 540 | pci_read_config_word(bus->host_pci, PCI_REVISION_ID, |
| 541 | &bi->rev); |
| 542 | } |
| 543 | |
| 544 | int ssb_pci_get_invariants(struct ssb_bus *bus, |
| 545 | struct ssb_init_invariants *iv) |
| 546 | { |
| 547 | int err; |
| 548 | |
| 549 | err = ssb_pci_sprom_get(bus, &iv->sprom); |
| 550 | if (err) |
| 551 | goto out; |
| 552 | ssb_pci_get_boardinfo(bus, &iv->boardinfo); |
| 553 | |
| 554 | out: |
| 555 | return err; |
| 556 | } |
| 557 | |
| 558 | #ifdef CONFIG_SSB_DEBUG |
| 559 | static int ssb_pci_assert_buspower(struct ssb_bus *bus) |
| 560 | { |
| 561 | if (likely(bus->powered_up)) |
| 562 | return 0; |
| 563 | |
| 564 | printk(KERN_ERR PFX "FATAL ERROR: Bus powered down " |
| 565 | "while accessing PCI MMIO space\n"); |
| 566 | if (bus->power_warn_count <= 10) { |
| 567 | bus->power_warn_count++; |
| 568 | dump_stack(); |
| 569 | } |
| 570 | |
| 571 | return -ENODEV; |
| 572 | } |
| 573 | #else /* DEBUG */ |
| 574 | static inline int ssb_pci_assert_buspower(struct ssb_bus *bus) |
| 575 | { |
| 576 | return 0; |
| 577 | } |
| 578 | #endif /* DEBUG */ |
| 579 | |
Michael Buesch | ffc7689 | 2008-02-20 19:08:10 +0100 | [diff] [blame] | 580 | static u8 ssb_pci_read8(struct ssb_device *dev, u16 offset) |
| 581 | { |
| 582 | struct ssb_bus *bus = dev->bus; |
| 583 | |
| 584 | if (unlikely(ssb_pci_assert_buspower(bus))) |
| 585 | return 0xFF; |
| 586 | if (unlikely(bus->mapped_device != dev)) { |
| 587 | if (unlikely(ssb_pci_switch_core(bus, dev))) |
| 588 | return 0xFF; |
| 589 | } |
| 590 | return ioread8(bus->mmio + offset); |
| 591 | } |
| 592 | |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 593 | static u16 ssb_pci_read16(struct ssb_device *dev, u16 offset) |
| 594 | { |
| 595 | struct ssb_bus *bus = dev->bus; |
| 596 | |
| 597 | if (unlikely(ssb_pci_assert_buspower(bus))) |
| 598 | return 0xFFFF; |
| 599 | if (unlikely(bus->mapped_device != dev)) { |
| 600 | if (unlikely(ssb_pci_switch_core(bus, dev))) |
| 601 | return 0xFFFF; |
| 602 | } |
Michael Buesch | 4b402c6 | 2007-09-19 18:53:44 +0200 | [diff] [blame] | 603 | return ioread16(bus->mmio + offset); |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 604 | } |
| 605 | |
| 606 | static u32 ssb_pci_read32(struct ssb_device *dev, u16 offset) |
| 607 | { |
| 608 | struct ssb_bus *bus = dev->bus; |
| 609 | |
| 610 | if (unlikely(ssb_pci_assert_buspower(bus))) |
| 611 | return 0xFFFFFFFF; |
| 612 | if (unlikely(bus->mapped_device != dev)) { |
| 613 | if (unlikely(ssb_pci_switch_core(bus, dev))) |
| 614 | return 0xFFFFFFFF; |
| 615 | } |
Michael Buesch | 4b402c6 | 2007-09-19 18:53:44 +0200 | [diff] [blame] | 616 | return ioread32(bus->mmio + offset); |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 617 | } |
| 618 | |
Michael Buesch | d625a29 | 2008-04-02 19:46:56 +0200 | [diff] [blame] | 619 | #ifdef CONFIG_SSB_BLOCKIO |
| 620 | static void ssb_pci_block_read(struct ssb_device *dev, void *buffer, |
| 621 | size_t count, u16 offset, u8 reg_width) |
| 622 | { |
| 623 | struct ssb_bus *bus = dev->bus; |
| 624 | void __iomem *addr = bus->mmio + offset; |
| 625 | |
| 626 | if (unlikely(ssb_pci_assert_buspower(bus))) |
| 627 | goto error; |
| 628 | if (unlikely(bus->mapped_device != dev)) { |
| 629 | if (unlikely(ssb_pci_switch_core(bus, dev))) |
| 630 | goto error; |
| 631 | } |
| 632 | switch (reg_width) { |
| 633 | case sizeof(u8): |
| 634 | ioread8_rep(addr, buffer, count); |
| 635 | break; |
| 636 | case sizeof(u16): |
| 637 | SSB_WARN_ON(count & 1); |
| 638 | ioread16_rep(addr, buffer, count >> 1); |
| 639 | break; |
| 640 | case sizeof(u32): |
| 641 | SSB_WARN_ON(count & 3); |
| 642 | ioread32_rep(addr, buffer, count >> 2); |
| 643 | break; |
| 644 | default: |
| 645 | SSB_WARN_ON(1); |
| 646 | } |
| 647 | |
| 648 | return; |
| 649 | error: |
| 650 | memset(buffer, 0xFF, count); |
| 651 | } |
| 652 | #endif /* CONFIG_SSB_BLOCKIO */ |
| 653 | |
Michael Buesch | ffc7689 | 2008-02-20 19:08:10 +0100 | [diff] [blame] | 654 | static void ssb_pci_write8(struct ssb_device *dev, u16 offset, u8 value) |
| 655 | { |
| 656 | struct ssb_bus *bus = dev->bus; |
| 657 | |
| 658 | if (unlikely(ssb_pci_assert_buspower(bus))) |
| 659 | return; |
| 660 | if (unlikely(bus->mapped_device != dev)) { |
| 661 | if (unlikely(ssb_pci_switch_core(bus, dev))) |
| 662 | return; |
| 663 | } |
| 664 | iowrite8(value, bus->mmio + offset); |
| 665 | } |
| 666 | |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 667 | static void ssb_pci_write16(struct ssb_device *dev, u16 offset, u16 value) |
| 668 | { |
| 669 | struct ssb_bus *bus = dev->bus; |
| 670 | |
| 671 | if (unlikely(ssb_pci_assert_buspower(bus))) |
| 672 | return; |
| 673 | if (unlikely(bus->mapped_device != dev)) { |
| 674 | if (unlikely(ssb_pci_switch_core(bus, dev))) |
| 675 | return; |
| 676 | } |
Michael Buesch | 4b402c6 | 2007-09-19 18:53:44 +0200 | [diff] [blame] | 677 | iowrite16(value, bus->mmio + offset); |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 678 | } |
| 679 | |
| 680 | static void ssb_pci_write32(struct ssb_device *dev, u16 offset, u32 value) |
| 681 | { |
| 682 | struct ssb_bus *bus = dev->bus; |
| 683 | |
| 684 | if (unlikely(ssb_pci_assert_buspower(bus))) |
| 685 | return; |
| 686 | if (unlikely(bus->mapped_device != dev)) { |
| 687 | if (unlikely(ssb_pci_switch_core(bus, dev))) |
| 688 | return; |
| 689 | } |
Michael Buesch | 4b402c6 | 2007-09-19 18:53:44 +0200 | [diff] [blame] | 690 | iowrite32(value, bus->mmio + offset); |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 691 | } |
| 692 | |
Michael Buesch | d625a29 | 2008-04-02 19:46:56 +0200 | [diff] [blame] | 693 | #ifdef CONFIG_SSB_BLOCKIO |
| 694 | static void ssb_pci_block_write(struct ssb_device *dev, const void *buffer, |
| 695 | size_t count, u16 offset, u8 reg_width) |
| 696 | { |
| 697 | struct ssb_bus *bus = dev->bus; |
| 698 | void __iomem *addr = bus->mmio + offset; |
| 699 | |
| 700 | if (unlikely(ssb_pci_assert_buspower(bus))) |
| 701 | return; |
| 702 | if (unlikely(bus->mapped_device != dev)) { |
| 703 | if (unlikely(ssb_pci_switch_core(bus, dev))) |
| 704 | return; |
| 705 | } |
| 706 | switch (reg_width) { |
| 707 | case sizeof(u8): |
| 708 | iowrite8_rep(addr, buffer, count); |
| 709 | break; |
| 710 | case sizeof(u16): |
| 711 | SSB_WARN_ON(count & 1); |
| 712 | iowrite16_rep(addr, buffer, count >> 1); |
| 713 | break; |
| 714 | case sizeof(u32): |
| 715 | SSB_WARN_ON(count & 3); |
| 716 | iowrite32_rep(addr, buffer, count >> 2); |
| 717 | break; |
| 718 | default: |
| 719 | SSB_WARN_ON(1); |
| 720 | } |
| 721 | } |
| 722 | #endif /* CONFIG_SSB_BLOCKIO */ |
| 723 | |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 724 | /* Not "static", as it's used in main.c */ |
| 725 | const struct ssb_bus_ops ssb_pci_ops = { |
Michael Buesch | ffc7689 | 2008-02-20 19:08:10 +0100 | [diff] [blame] | 726 | .read8 = ssb_pci_read8, |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 727 | .read16 = ssb_pci_read16, |
| 728 | .read32 = ssb_pci_read32, |
Michael Buesch | ffc7689 | 2008-02-20 19:08:10 +0100 | [diff] [blame] | 729 | .write8 = ssb_pci_write8, |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 730 | .write16 = ssb_pci_write16, |
| 731 | .write32 = ssb_pci_write32, |
Michael Buesch | d625a29 | 2008-04-02 19:46:56 +0200 | [diff] [blame] | 732 | #ifdef CONFIG_SSB_BLOCKIO |
| 733 | .block_read = ssb_pci_block_read, |
| 734 | .block_write = ssb_pci_block_write, |
| 735 | #endif |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 736 | }; |
| 737 | |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 738 | static ssize_t ssb_pci_attr_sprom_show(struct device *pcidev, |
| 739 | struct device_attribute *attr, |
| 740 | char *buf) |
| 741 | { |
| 742 | struct pci_dev *pdev = container_of(pcidev, struct pci_dev, dev); |
| 743 | struct ssb_bus *bus; |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 744 | |
| 745 | bus = ssb_pci_dev_to_bus(pdev); |
| 746 | if (!bus) |
Michael Buesch | e7ec2e3 | 2008-03-10 17:26:32 +0100 | [diff] [blame] | 747 | return -ENODEV; |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 748 | |
Michael Buesch | e7ec2e3 | 2008-03-10 17:26:32 +0100 | [diff] [blame] | 749 | return ssb_attr_sprom_show(bus, buf, sprom_do_read); |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 750 | } |
| 751 | |
| 752 | static ssize_t ssb_pci_attr_sprom_store(struct device *pcidev, |
| 753 | struct device_attribute *attr, |
| 754 | const char *buf, size_t count) |
| 755 | { |
| 756 | struct pci_dev *pdev = container_of(pcidev, struct pci_dev, dev); |
| 757 | struct ssb_bus *bus; |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 758 | |
| 759 | bus = ssb_pci_dev_to_bus(pdev); |
| 760 | if (!bus) |
Michael Buesch | e7ec2e3 | 2008-03-10 17:26:32 +0100 | [diff] [blame] | 761 | return -ENODEV; |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 762 | |
Michael Buesch | e7ec2e3 | 2008-03-10 17:26:32 +0100 | [diff] [blame] | 763 | return ssb_attr_sprom_store(bus, buf, count, |
| 764 | sprom_check_crc, sprom_do_write); |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 765 | } |
| 766 | |
| 767 | static DEVICE_ATTR(ssb_sprom, 0600, |
| 768 | ssb_pci_attr_sprom_show, |
| 769 | ssb_pci_attr_sprom_store); |
| 770 | |
| 771 | void ssb_pci_exit(struct ssb_bus *bus) |
| 772 | { |
| 773 | struct pci_dev *pdev; |
| 774 | |
| 775 | if (bus->bustype != SSB_BUSTYPE_PCI) |
| 776 | return; |
| 777 | |
| 778 | pdev = bus->host_pci; |
| 779 | device_remove_file(&pdev->dev, &dev_attr_ssb_sprom); |
| 780 | } |
| 781 | |
| 782 | int ssb_pci_init(struct ssb_bus *bus) |
| 783 | { |
| 784 | struct pci_dev *pdev; |
| 785 | int err; |
| 786 | |
| 787 | if (bus->bustype != SSB_BUSTYPE_PCI) |
| 788 | return 0; |
| 789 | |
| 790 | pdev = bus->host_pci; |
Michael Buesch | e7ec2e3 | 2008-03-10 17:26:32 +0100 | [diff] [blame] | 791 | mutex_init(&bus->sprom_mutex); |
Michael Buesch | 61e115a | 2007-09-18 15:12:50 -0400 | [diff] [blame] | 792 | err = device_create_file(&pdev->dev, &dev_attr_ssb_sprom); |
| 793 | if (err) |
| 794 | goto out; |
| 795 | |
| 796 | out: |
| 797 | return err; |
| 798 | } |