Rafał Miłecki | 27f18dc | 2011-06-02 02:08:51 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Broadcom specific AMBA |
| 3 | * SPROM reading |
| 4 | * |
Hauke Mehrtens | a027237 | 2012-02-28 00:56:10 +0100 | [diff] [blame] | 5 | * Copyright 2011, 2012, Hauke Mehrtens <hauke@hauke-m.de> |
| 6 | * |
Rafał Miłecki | 27f18dc | 2011-06-02 02:08:51 +0200 | [diff] [blame] | 7 | * Licensed under the GNU/GPL. See COPYING for details. |
| 8 | */ |
| 9 | |
| 10 | #include "bcma_private.h" |
| 11 | |
| 12 | #include <linux/bcma/bcma.h> |
| 13 | #include <linux/bcma/bcma_regs.h> |
| 14 | #include <linux/pci.h> |
| 15 | #include <linux/io.h> |
| 16 | #include <linux/dma-mapping.h> |
| 17 | #include <linux/slab.h> |
| 18 | |
Hauke Mehrtens | a027237 | 2012-02-28 00:56:10 +0100 | [diff] [blame] | 19 | static int(*get_fallback_sprom)(struct bcma_bus *dev, struct ssb_sprom *out); |
| 20 | |
| 21 | /** |
| 22 | * bcma_arch_register_fallback_sprom - Registers a method providing a |
| 23 | * fallback SPROM if no SPROM is found. |
| 24 | * |
| 25 | * @sprom_callback: The callback function. |
| 26 | * |
| 27 | * With this function the architecture implementation may register a |
| 28 | * callback handler which fills the SPROM data structure. The fallback is |
| 29 | * used for PCI based BCMA devices, where no valid SPROM can be found |
| 30 | * in the shadow registers and to provide the SPROM for SoCs where BCMA is |
| 31 | * to controll the system bus. |
| 32 | * |
| 33 | * This function is useful for weird architectures that have a half-assed |
| 34 | * BCMA device hardwired to their PCI bus. |
| 35 | * |
| 36 | * This function is available for architecture code, only. So it is not |
| 37 | * exported. |
| 38 | */ |
| 39 | int bcma_arch_register_fallback_sprom(int (*sprom_callback)(struct bcma_bus *bus, |
| 40 | struct ssb_sprom *out)) |
| 41 | { |
| 42 | if (get_fallback_sprom) |
| 43 | return -EEXIST; |
| 44 | get_fallback_sprom = sprom_callback; |
| 45 | |
| 46 | return 0; |
| 47 | } |
| 48 | |
| 49 | static int bcma_fill_sprom_with_fallback(struct bcma_bus *bus, |
| 50 | struct ssb_sprom *out) |
| 51 | { |
Arend van Spriel | 4ac887c | 2012-03-06 15:50:47 +0100 | [diff] [blame^] | 52 | int err; |
Hauke Mehrtens | a027237 | 2012-02-28 00:56:10 +0100 | [diff] [blame] | 53 | |
Arend van Spriel | 4ac887c | 2012-03-06 15:50:47 +0100 | [diff] [blame^] | 54 | if (!get_fallback_sprom) { |
| 55 | err = -ENOENT; |
| 56 | goto fail; |
| 57 | } |
| 58 | |
| 59 | err = get_fallback_sprom(bus, out); |
| 60 | if (err) |
| 61 | goto fail; |
| 62 | |
| 63 | pr_debug("Using SPROM revision %d provided by" |
| 64 | " platform.\n", bus->sprom.revision); |
| 65 | return 0; |
| 66 | fail: |
| 67 | pr_warn("Using fallback SPROM failed (err %d)\n", err); |
| 68 | return err; |
Hauke Mehrtens | a027237 | 2012-02-28 00:56:10 +0100 | [diff] [blame] | 69 | } |
| 70 | |
Rafał Miłecki | 27f18dc | 2011-06-02 02:08:51 +0200 | [diff] [blame] | 71 | /************************************************** |
| 72 | * R/W ops. |
| 73 | **************************************************/ |
| 74 | |
Rafał Miłecki | eb1577b | 2011-07-17 11:00:59 +0200 | [diff] [blame] | 75 | static void bcma_sprom_read(struct bcma_bus *bus, u16 offset, u16 *sprom) |
Rafał Miłecki | 27f18dc | 2011-06-02 02:08:51 +0200 | [diff] [blame] | 76 | { |
| 77 | int i; |
| 78 | for (i = 0; i < SSB_SPROMSIZE_WORDS_R4; i++) |
| 79 | sprom[i] = bcma_read16(bus->drv_cc.core, |
Rafał Miłecki | eb1577b | 2011-07-17 11:00:59 +0200 | [diff] [blame] | 80 | offset + (i * 2)); |
Rafał Miłecki | 27f18dc | 2011-06-02 02:08:51 +0200 | [diff] [blame] | 81 | } |
| 82 | |
| 83 | /************************************************** |
| 84 | * Validation. |
| 85 | **************************************************/ |
| 86 | |
| 87 | static inline u8 bcma_crc8(u8 crc, u8 data) |
| 88 | { |
| 89 | /* Polynomial: x^8 + x^7 + x^6 + x^4 + x^2 + 1 */ |
| 90 | static const u8 t[] = { |
| 91 | 0x00, 0xF7, 0xB9, 0x4E, 0x25, 0xD2, 0x9C, 0x6B, |
| 92 | 0x4A, 0xBD, 0xF3, 0x04, 0x6F, 0x98, 0xD6, 0x21, |
| 93 | 0x94, 0x63, 0x2D, 0xDA, 0xB1, 0x46, 0x08, 0xFF, |
| 94 | 0xDE, 0x29, 0x67, 0x90, 0xFB, 0x0C, 0x42, 0xB5, |
| 95 | 0x7F, 0x88, 0xC6, 0x31, 0x5A, 0xAD, 0xE3, 0x14, |
| 96 | 0x35, 0xC2, 0x8C, 0x7B, 0x10, 0xE7, 0xA9, 0x5E, |
| 97 | 0xEB, 0x1C, 0x52, 0xA5, 0xCE, 0x39, 0x77, 0x80, |
| 98 | 0xA1, 0x56, 0x18, 0xEF, 0x84, 0x73, 0x3D, 0xCA, |
| 99 | 0xFE, 0x09, 0x47, 0xB0, 0xDB, 0x2C, 0x62, 0x95, |
| 100 | 0xB4, 0x43, 0x0D, 0xFA, 0x91, 0x66, 0x28, 0xDF, |
| 101 | 0x6A, 0x9D, 0xD3, 0x24, 0x4F, 0xB8, 0xF6, 0x01, |
| 102 | 0x20, 0xD7, 0x99, 0x6E, 0x05, 0xF2, 0xBC, 0x4B, |
| 103 | 0x81, 0x76, 0x38, 0xCF, 0xA4, 0x53, 0x1D, 0xEA, |
| 104 | 0xCB, 0x3C, 0x72, 0x85, 0xEE, 0x19, 0x57, 0xA0, |
| 105 | 0x15, 0xE2, 0xAC, 0x5B, 0x30, 0xC7, 0x89, 0x7E, |
| 106 | 0x5F, 0xA8, 0xE6, 0x11, 0x7A, 0x8D, 0xC3, 0x34, |
| 107 | 0xAB, 0x5C, 0x12, 0xE5, 0x8E, 0x79, 0x37, 0xC0, |
| 108 | 0xE1, 0x16, 0x58, 0xAF, 0xC4, 0x33, 0x7D, 0x8A, |
| 109 | 0x3F, 0xC8, 0x86, 0x71, 0x1A, 0xED, 0xA3, 0x54, |
| 110 | 0x75, 0x82, 0xCC, 0x3B, 0x50, 0xA7, 0xE9, 0x1E, |
| 111 | 0xD4, 0x23, 0x6D, 0x9A, 0xF1, 0x06, 0x48, 0xBF, |
| 112 | 0x9E, 0x69, 0x27, 0xD0, 0xBB, 0x4C, 0x02, 0xF5, |
| 113 | 0x40, 0xB7, 0xF9, 0x0E, 0x65, 0x92, 0xDC, 0x2B, |
| 114 | 0x0A, 0xFD, 0xB3, 0x44, 0x2F, 0xD8, 0x96, 0x61, |
| 115 | 0x55, 0xA2, 0xEC, 0x1B, 0x70, 0x87, 0xC9, 0x3E, |
| 116 | 0x1F, 0xE8, 0xA6, 0x51, 0x3A, 0xCD, 0x83, 0x74, |
| 117 | 0xC1, 0x36, 0x78, 0x8F, 0xE4, 0x13, 0x5D, 0xAA, |
| 118 | 0x8B, 0x7C, 0x32, 0xC5, 0xAE, 0x59, 0x17, 0xE0, |
| 119 | 0x2A, 0xDD, 0x93, 0x64, 0x0F, 0xF8, 0xB6, 0x41, |
| 120 | 0x60, 0x97, 0xD9, 0x2E, 0x45, 0xB2, 0xFC, 0x0B, |
| 121 | 0xBE, 0x49, 0x07, 0xF0, 0x9B, 0x6C, 0x22, 0xD5, |
| 122 | 0xF4, 0x03, 0x4D, 0xBA, 0xD1, 0x26, 0x68, 0x9F, |
| 123 | }; |
| 124 | return t[crc ^ data]; |
| 125 | } |
| 126 | |
| 127 | static u8 bcma_sprom_crc(const u16 *sprom) |
| 128 | { |
| 129 | int word; |
| 130 | u8 crc = 0xFF; |
| 131 | |
| 132 | for (word = 0; word < SSB_SPROMSIZE_WORDS_R4 - 1; word++) { |
| 133 | crc = bcma_crc8(crc, sprom[word] & 0x00FF); |
| 134 | crc = bcma_crc8(crc, (sprom[word] & 0xFF00) >> 8); |
| 135 | } |
| 136 | crc = bcma_crc8(crc, sprom[SSB_SPROMSIZE_WORDS_R4 - 1] & 0x00FF); |
| 137 | crc ^= 0xFF; |
| 138 | |
| 139 | return crc; |
| 140 | } |
| 141 | |
| 142 | static int bcma_sprom_check_crc(const u16 *sprom) |
| 143 | { |
| 144 | u8 crc; |
| 145 | u8 expected_crc; |
| 146 | u16 tmp; |
| 147 | |
| 148 | crc = bcma_sprom_crc(sprom); |
| 149 | tmp = sprom[SSB_SPROMSIZE_WORDS_R4 - 1] & SSB_SPROM_REVISION_CRC; |
| 150 | expected_crc = tmp >> SSB_SPROM_REVISION_CRC_SHIFT; |
| 151 | if (crc != expected_crc) |
| 152 | return -EPROTO; |
| 153 | |
| 154 | return 0; |
| 155 | } |
| 156 | |
| 157 | static int bcma_sprom_valid(const u16 *sprom) |
| 158 | { |
| 159 | u16 revision; |
| 160 | int err; |
| 161 | |
| 162 | err = bcma_sprom_check_crc(sprom); |
| 163 | if (err) |
| 164 | return err; |
| 165 | |
| 166 | revision = sprom[SSB_SPROMSIZE_WORDS_R4 - 1] & SSB_SPROM_REVISION_REV; |
Rafał Miłecki | c54dcd1 | 2011-07-14 21:49:21 +0200 | [diff] [blame] | 167 | if (revision != 8 && revision != 9) { |
Rafał Miłecki | 27f18dc | 2011-06-02 02:08:51 +0200 | [diff] [blame] | 168 | pr_err("Unsupported SPROM revision: %d\n", revision); |
| 169 | return -ENOENT; |
| 170 | } |
| 171 | |
| 172 | return 0; |
| 173 | } |
| 174 | |
| 175 | /************************************************** |
| 176 | * SPROM extraction. |
| 177 | **************************************************/ |
| 178 | |
Rafał Miłecki | b35a9ac | 2012-01-02 08:41:24 +0100 | [diff] [blame] | 179 | #define SPOFF(offset) ((offset) / sizeof(u16)) |
| 180 | |
| 181 | #define SPEX(_field, _offset, _mask, _shift) \ |
| 182 | bus->sprom._field = ((sprom[SPOFF(_offset)] & (_mask)) >> (_shift)) |
| 183 | |
Rafał Miłecki | 27f18dc | 2011-06-02 02:08:51 +0200 | [diff] [blame] | 184 | static void bcma_sprom_extract_r8(struct bcma_bus *bus, const u16 *sprom) |
| 185 | { |
Rafał Miłecki | 507f9a7 | 2012-01-02 08:41:25 +0100 | [diff] [blame] | 186 | u16 v, o; |
Rafał Miłecki | 27f18dc | 2011-06-02 02:08:51 +0200 | [diff] [blame] | 187 | int i; |
Rafał Miłecki | 507f9a7 | 2012-01-02 08:41:25 +0100 | [diff] [blame] | 188 | u16 pwr_info_offset[] = { |
| 189 | SSB_SROM8_PWR_INFO_CORE0, SSB_SROM8_PWR_INFO_CORE1, |
| 190 | SSB_SROM8_PWR_INFO_CORE2, SSB_SROM8_PWR_INFO_CORE3 |
| 191 | }; |
| 192 | BUILD_BUG_ON(ARRAY_SIZE(pwr_info_offset) != |
| 193 | ARRAY_SIZE(bus->sprom.core_pwr_info)); |
Rafał Miłecki | 27f18dc | 2011-06-02 02:08:51 +0200 | [diff] [blame] | 194 | |
Rafał Miłecki | daadc6b | 2011-12-12 21:33:12 +0100 | [diff] [blame] | 195 | bus->sprom.revision = sprom[SSB_SPROMSIZE_WORDS_R4 - 1] & |
| 196 | SSB_SPROM_REVISION_REV; |
| 197 | |
Rafał Miłecki | 27f18dc | 2011-06-02 02:08:51 +0200 | [diff] [blame] | 198 | for (i = 0; i < 3; i++) { |
| 199 | v = sprom[SPOFF(SSB_SPROM8_IL0MAC) + i]; |
| 200 | *(((__be16 *)bus->sprom.il0mac) + i) = cpu_to_be16(v); |
| 201 | } |
Rafał Miłecki | d703a5a | 2011-08-28 18:47:23 +0200 | [diff] [blame] | 202 | |
Rafał Miłecki | b35a9ac | 2012-01-02 08:41:24 +0100 | [diff] [blame] | 203 | SPEX(board_rev, SSB_SPROM8_BOARDREV, ~0, 0); |
Rafał Miłecki | d703a5a | 2011-08-28 18:47:23 +0200 | [diff] [blame] | 204 | |
Rafał Miłecki | b35a9ac | 2012-01-02 08:41:24 +0100 | [diff] [blame] | 205 | SPEX(txpid2g[0], SSB_SPROM4_TXPID2G01, SSB_SPROM4_TXPID2G0, |
| 206 | SSB_SPROM4_TXPID2G0_SHIFT); |
| 207 | SPEX(txpid2g[1], SSB_SPROM4_TXPID2G01, SSB_SPROM4_TXPID2G1, |
| 208 | SSB_SPROM4_TXPID2G1_SHIFT); |
| 209 | SPEX(txpid2g[2], SSB_SPROM4_TXPID2G23, SSB_SPROM4_TXPID2G2, |
| 210 | SSB_SPROM4_TXPID2G2_SHIFT); |
| 211 | SPEX(txpid2g[3], SSB_SPROM4_TXPID2G23, SSB_SPROM4_TXPID2G3, |
| 212 | SSB_SPROM4_TXPID2G3_SHIFT); |
Rafał Miłecki | daadc6b | 2011-12-12 21:33:12 +0100 | [diff] [blame] | 213 | |
Rafał Miłecki | b35a9ac | 2012-01-02 08:41:24 +0100 | [diff] [blame] | 214 | SPEX(txpid5gl[0], SSB_SPROM4_TXPID5GL01, SSB_SPROM4_TXPID5GL0, |
| 215 | SSB_SPROM4_TXPID5GL0_SHIFT); |
| 216 | SPEX(txpid5gl[1], SSB_SPROM4_TXPID5GL01, SSB_SPROM4_TXPID5GL1, |
| 217 | SSB_SPROM4_TXPID5GL1_SHIFT); |
| 218 | SPEX(txpid5gl[2], SSB_SPROM4_TXPID5GL23, SSB_SPROM4_TXPID5GL2, |
| 219 | SSB_SPROM4_TXPID5GL2_SHIFT); |
| 220 | SPEX(txpid5gl[3], SSB_SPROM4_TXPID5GL23, SSB_SPROM4_TXPID5GL3, |
| 221 | SSB_SPROM4_TXPID5GL3_SHIFT); |
Rafał Miłecki | daadc6b | 2011-12-12 21:33:12 +0100 | [diff] [blame] | 222 | |
Rafał Miłecki | b35a9ac | 2012-01-02 08:41:24 +0100 | [diff] [blame] | 223 | SPEX(txpid5g[0], SSB_SPROM4_TXPID5G01, SSB_SPROM4_TXPID5G0, |
| 224 | SSB_SPROM4_TXPID5G0_SHIFT); |
| 225 | SPEX(txpid5g[1], SSB_SPROM4_TXPID5G01, SSB_SPROM4_TXPID5G1, |
| 226 | SSB_SPROM4_TXPID5G1_SHIFT); |
| 227 | SPEX(txpid5g[2], SSB_SPROM4_TXPID5G23, SSB_SPROM4_TXPID5G2, |
| 228 | SSB_SPROM4_TXPID5G2_SHIFT); |
| 229 | SPEX(txpid5g[3], SSB_SPROM4_TXPID5G23, SSB_SPROM4_TXPID5G3, |
| 230 | SSB_SPROM4_TXPID5G3_SHIFT); |
Rafał Miłecki | daadc6b | 2011-12-12 21:33:12 +0100 | [diff] [blame] | 231 | |
Rafał Miłecki | b35a9ac | 2012-01-02 08:41:24 +0100 | [diff] [blame] | 232 | SPEX(txpid5gh[0], SSB_SPROM4_TXPID5GH01, SSB_SPROM4_TXPID5GH0, |
| 233 | SSB_SPROM4_TXPID5GH0_SHIFT); |
| 234 | SPEX(txpid5gh[1], SSB_SPROM4_TXPID5GH01, SSB_SPROM4_TXPID5GH1, |
| 235 | SSB_SPROM4_TXPID5GH1_SHIFT); |
| 236 | SPEX(txpid5gh[2], SSB_SPROM4_TXPID5GH23, SSB_SPROM4_TXPID5GH2, |
| 237 | SSB_SPROM4_TXPID5GH2_SHIFT); |
| 238 | SPEX(txpid5gh[3], SSB_SPROM4_TXPID5GH23, SSB_SPROM4_TXPID5GH3, |
| 239 | SSB_SPROM4_TXPID5GH3_SHIFT); |
Rafał Miłecki | daadc6b | 2011-12-12 21:33:12 +0100 | [diff] [blame] | 240 | |
Rafał Miłecki | b35a9ac | 2012-01-02 08:41:24 +0100 | [diff] [blame] | 241 | SPEX(boardflags_lo, SSB_SPROM8_BFLLO, ~0, 0); |
| 242 | SPEX(boardflags_hi, SSB_SPROM8_BFLHI, ~0, 0); |
| 243 | SPEX(boardflags2_lo, SSB_SPROM8_BFL2LO, ~0, 0); |
| 244 | SPEX(boardflags2_hi, SSB_SPROM8_BFL2HI, ~0, 0); |
Rafał Miłecki | d703a5a | 2011-08-28 18:47:23 +0200 | [diff] [blame] | 245 | |
Rafał Miłecki | b35a9ac | 2012-01-02 08:41:24 +0100 | [diff] [blame] | 246 | SPEX(country_code, SSB_SPROM8_CCODE, ~0, 0); |
Rafał Miłecki | aee5ed5 | 2011-12-08 18:02:22 +0100 | [diff] [blame] | 247 | |
Rafał Miłecki | 507f9a7 | 2012-01-02 08:41:25 +0100 | [diff] [blame] | 248 | /* Extract cores power info info */ |
| 249 | for (i = 0; i < ARRAY_SIZE(pwr_info_offset); i++) { |
| 250 | o = pwr_info_offset[i]; |
| 251 | SPEX(core_pwr_info[i].itssi_2g, o + SSB_SROM8_2G_MAXP_ITSSI, |
| 252 | SSB_SPROM8_2G_ITSSI, SSB_SPROM8_2G_ITSSI_SHIFT); |
| 253 | SPEX(core_pwr_info[i].maxpwr_2g, o + SSB_SROM8_2G_MAXP_ITSSI, |
| 254 | SSB_SPROM8_2G_MAXP, 0); |
| 255 | |
| 256 | SPEX(core_pwr_info[i].pa_2g[0], o + SSB_SROM8_2G_PA_0, ~0, 0); |
| 257 | SPEX(core_pwr_info[i].pa_2g[1], o + SSB_SROM8_2G_PA_1, ~0, 0); |
| 258 | SPEX(core_pwr_info[i].pa_2g[2], o + SSB_SROM8_2G_PA_2, ~0, 0); |
| 259 | |
| 260 | SPEX(core_pwr_info[i].itssi_5g, o + SSB_SROM8_5G_MAXP_ITSSI, |
| 261 | SSB_SPROM8_5G_ITSSI, SSB_SPROM8_5G_ITSSI_SHIFT); |
| 262 | SPEX(core_pwr_info[i].maxpwr_5g, o + SSB_SROM8_5G_MAXP_ITSSI, |
| 263 | SSB_SPROM8_5G_MAXP, 0); |
| 264 | SPEX(core_pwr_info[i].maxpwr_5gh, o + SSB_SPROM8_5GHL_MAXP, |
| 265 | SSB_SPROM8_5GH_MAXP, 0); |
| 266 | SPEX(core_pwr_info[i].maxpwr_5gl, o + SSB_SPROM8_5GHL_MAXP, |
| 267 | SSB_SPROM8_5GL_MAXP, SSB_SPROM8_5GL_MAXP_SHIFT); |
| 268 | |
| 269 | SPEX(core_pwr_info[i].pa_5gl[0], o + SSB_SROM8_5GL_PA_0, ~0, 0); |
| 270 | SPEX(core_pwr_info[i].pa_5gl[1], o + SSB_SROM8_5GL_PA_1, ~0, 0); |
| 271 | SPEX(core_pwr_info[i].pa_5gl[2], o + SSB_SROM8_5GL_PA_2, ~0, 0); |
| 272 | SPEX(core_pwr_info[i].pa_5g[0], o + SSB_SROM8_5G_PA_0, ~0, 0); |
| 273 | SPEX(core_pwr_info[i].pa_5g[1], o + SSB_SROM8_5G_PA_1, ~0, 0); |
| 274 | SPEX(core_pwr_info[i].pa_5g[2], o + SSB_SROM8_5G_PA_2, ~0, 0); |
| 275 | SPEX(core_pwr_info[i].pa_5gh[0], o + SSB_SROM8_5GH_PA_0, ~0, 0); |
| 276 | SPEX(core_pwr_info[i].pa_5gh[1], o + SSB_SROM8_5GH_PA_1, ~0, 0); |
| 277 | SPEX(core_pwr_info[i].pa_5gh[2], o + SSB_SROM8_5GH_PA_2, ~0, 0); |
| 278 | } |
| 279 | |
Rafał Miłecki | b35a9ac | 2012-01-02 08:41:24 +0100 | [diff] [blame] | 280 | SPEX(fem.ghz2.tssipos, SSB_SPROM8_FEM2G, SSB_SROM8_FEM_TSSIPOS, |
| 281 | SSB_SROM8_FEM_TSSIPOS_SHIFT); |
| 282 | SPEX(fem.ghz2.extpa_gain, SSB_SPROM8_FEM2G, SSB_SROM8_FEM_EXTPA_GAIN, |
| 283 | SSB_SROM8_FEM_EXTPA_GAIN_SHIFT); |
| 284 | SPEX(fem.ghz2.pdet_range, SSB_SPROM8_FEM2G, SSB_SROM8_FEM_PDET_RANGE, |
| 285 | SSB_SROM8_FEM_PDET_RANGE_SHIFT); |
| 286 | SPEX(fem.ghz2.tr_iso, SSB_SPROM8_FEM2G, SSB_SROM8_FEM_TR_ISO, |
| 287 | SSB_SROM8_FEM_TR_ISO_SHIFT); |
| 288 | SPEX(fem.ghz2.antswlut, SSB_SPROM8_FEM2G, SSB_SROM8_FEM_ANTSWLUT, |
| 289 | SSB_SROM8_FEM_ANTSWLUT_SHIFT); |
Rafał Miłecki | aee5ed5 | 2011-12-08 18:02:22 +0100 | [diff] [blame] | 290 | |
Rafał Miłecki | b35a9ac | 2012-01-02 08:41:24 +0100 | [diff] [blame] | 291 | SPEX(fem.ghz5.tssipos, SSB_SPROM8_FEM5G, SSB_SROM8_FEM_TSSIPOS, |
| 292 | SSB_SROM8_FEM_TSSIPOS_SHIFT); |
| 293 | SPEX(fem.ghz5.extpa_gain, SSB_SPROM8_FEM5G, SSB_SROM8_FEM_EXTPA_GAIN, |
| 294 | SSB_SROM8_FEM_EXTPA_GAIN_SHIFT); |
| 295 | SPEX(fem.ghz5.pdet_range, SSB_SPROM8_FEM5G, SSB_SROM8_FEM_PDET_RANGE, |
| 296 | SSB_SROM8_FEM_PDET_RANGE_SHIFT); |
| 297 | SPEX(fem.ghz5.tr_iso, SSB_SPROM8_FEM5G, SSB_SROM8_FEM_TR_ISO, |
| 298 | SSB_SROM8_FEM_TR_ISO_SHIFT); |
| 299 | SPEX(fem.ghz5.antswlut, SSB_SPROM8_FEM5G, SSB_SROM8_FEM_ANTSWLUT, |
| 300 | SSB_SROM8_FEM_ANTSWLUT_SHIFT); |
Rafał Miłecki | 27f18dc | 2011-06-02 02:08:51 +0200 | [diff] [blame] | 301 | } |
| 302 | |
Hauke Mehrtens | a027237 | 2012-02-28 00:56:10 +0100 | [diff] [blame] | 303 | static bool bcma_is_sprom_available(struct bcma_bus *bus) |
| 304 | { |
| 305 | u32 sromctrl; |
| 306 | |
| 307 | if (!(bus->drv_cc.capabilities & BCMA_CC_CAP_SPROM)) |
| 308 | return false; |
| 309 | |
| 310 | if (bus->drv_cc.core->id.rev >= 32) { |
| 311 | sromctrl = bcma_read32(bus->drv_cc.core, BCMA_CC_SROM_CONTROL); |
| 312 | return sromctrl & BCMA_CC_SROM_CONTROL_PRESENT; |
| 313 | } |
| 314 | return true; |
| 315 | } |
| 316 | |
Rafał Miłecki | 27f18dc | 2011-06-02 02:08:51 +0200 | [diff] [blame] | 317 | int bcma_sprom_get(struct bcma_bus *bus) |
| 318 | { |
Rafał Miłecki | eb1577b | 2011-07-17 11:00:59 +0200 | [diff] [blame] | 319 | u16 offset; |
Rafał Miłecki | 27f18dc | 2011-06-02 02:08:51 +0200 | [diff] [blame] | 320 | u16 *sprom; |
| 321 | int err = 0; |
| 322 | |
| 323 | if (!bus->drv_cc.core) |
| 324 | return -EOPNOTSUPP; |
| 325 | |
Hauke Mehrtens | a027237 | 2012-02-28 00:56:10 +0100 | [diff] [blame] | 326 | if (!bcma_is_sprom_available(bus)) { |
| 327 | /* |
| 328 | * Maybe there is no SPROM on the device? |
| 329 | * Now we ask the arch code if there is some sprom |
| 330 | * available for this device in some other storage. |
| 331 | */ |
| 332 | err = bcma_fill_sprom_with_fallback(bus, &bus->sprom); |
Arend van Spriel | 4ac887c | 2012-03-06 15:50:47 +0100 | [diff] [blame^] | 333 | return err; |
Hauke Mehrtens | d6865dcc | 2012-01-31 00:03:37 +0100 | [diff] [blame] | 334 | } |
| 335 | |
Rafał Miłecki | 27f18dc | 2011-06-02 02:08:51 +0200 | [diff] [blame] | 336 | sprom = kcalloc(SSB_SPROMSIZE_WORDS_R4, sizeof(u16), |
| 337 | GFP_KERNEL); |
| 338 | if (!sprom) |
| 339 | return -ENOMEM; |
| 340 | |
Rafał Miłecki | 984e5be | 2011-08-11 23:46:44 +0200 | [diff] [blame] | 341 | if (bus->chipinfo.id == 0x4331) |
| 342 | bcma_chipco_bcm4331_ext_pa_lines_ctl(&bus->drv_cc, false); |
| 343 | |
Rafał Miłecki | eb1577b | 2011-07-17 11:00:59 +0200 | [diff] [blame] | 344 | /* Most cards have SPROM moved by additional offset 0x30 (48 dwords). |
| 345 | * According to brcm80211 this applies to cards with PCIe rev >= 6 |
| 346 | * TODO: understand this condition and use it */ |
| 347 | offset = (bus->chipinfo.id == 0x4331) ? BCMA_CC_SPROM : |
| 348 | BCMA_CC_SPROM_PCIE6; |
Larry Finger | cebcab9 | 2012-01-11 14:39:32 -0600 | [diff] [blame] | 349 | pr_debug("SPROM offset 0x%x\n", offset); |
Rafał Miłecki | eb1577b | 2011-07-17 11:00:59 +0200 | [diff] [blame] | 350 | bcma_sprom_read(bus, offset, sprom); |
Rafał Miłecki | 27f18dc | 2011-06-02 02:08:51 +0200 | [diff] [blame] | 351 | |
Rafał Miłecki | 984e5be | 2011-08-11 23:46:44 +0200 | [diff] [blame] | 352 | if (bus->chipinfo.id == 0x4331) |
| 353 | bcma_chipco_bcm4331_ext_pa_lines_ctl(&bus->drv_cc, true); |
| 354 | |
Rafał Miłecki | 27f18dc | 2011-06-02 02:08:51 +0200 | [diff] [blame] | 355 | err = bcma_sprom_valid(sprom); |
| 356 | if (err) |
| 357 | goto out; |
| 358 | |
| 359 | bcma_sprom_extract_r8(bus, sprom); |
| 360 | |
| 361 | out: |
| 362 | kfree(sprom); |
| 363 | return err; |
| 364 | } |