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| author | Rafał Miłecki <zajec5@gmail.com> | 2013-05-13 22:07:52 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2013-05-22 21:08:42 +0200 |
| commit | 92eb164258cfce173060d3fe7aaffa2afaf735d7 (patch) | |
| tree | bcc877ad7cb3955386954f8fbf9340a722112872 | |
| parent | bcma: don't hardcode SPROM length (diff) | |
| download | linux-92eb164258cfce173060d3fe7aaffa2afaf735d7.tar.xz linux-92eb164258cfce173060d3fe7aaffa2afaf735d7.zip | |
bcma: prepare for supporting more SPROM sizes
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | drivers/bcma/sprom.c | 35 |
1 files changed, 20 insertions, 15 deletions
diff --git a/drivers/bcma/sprom.c b/drivers/bcma/sprom.c index 5386cddba43e..c96f71c183cd 100644 --- a/drivers/bcma/sprom.c +++ b/drivers/bcma/sprom.c @@ -502,7 +502,6 @@ static bool bcma_sprom_onchip_available(struct bcma_bus *bus) case BCMA_CHIP_ID_BCM4331: present = chip_status & BCMA_CC_CHIPST_4331_OTP_PRESENT; break; - case BCMA_CHIP_ID_BCM43224: case BCMA_CHIP_ID_BCM43225: /* for these chips OTP is always available */ @@ -550,7 +549,8 @@ int bcma_sprom_get(struct bcma_bus *bus) { u16 offset = BCMA_CC_SPROM; u16 *sprom; - int err = 0; + size_t sprom_sizes[] = { SSB_SPROMSIZE_WORDS_R4, }; + int i, err = 0; if (!bus->drv_cc.core) return -EOPNOTSUPP; @@ -579,32 +579,37 @@ int bcma_sprom_get(struct bcma_bus *bus) } } - sprom = kcalloc(SSB_SPROMSIZE_WORDS_R4, sizeof(u16), - GFP_KERNEL); - if (!sprom) - return -ENOMEM; - if (bus->chipinfo.id == BCMA_CHIP_ID_BCM4331 || bus->chipinfo.id == BCMA_CHIP_ID_BCM43431) bcma_chipco_bcm4331_ext_pa_lines_ctl(&bus->drv_cc, false); bcma_debug(bus, "SPROM offset 0x%x\n", offset); - bcma_sprom_read(bus, offset, sprom, SSB_SPROMSIZE_WORDS_R4); + for (i = 0; i < ARRAY_SIZE(sprom_sizes); i++) { + size_t words = sprom_sizes[i]; + + sprom = kcalloc(words, sizeof(u16), GFP_KERNEL); + if (!sprom) + return -ENOMEM; + + bcma_sprom_read(bus, offset, sprom, words); + err = bcma_sprom_valid(sprom, words); + if (!err) + break; + + kfree(sprom); + } if (bus->chipinfo.id == BCMA_CHIP_ID_BCM4331 || bus->chipinfo.id == BCMA_CHIP_ID_BCM43431) bcma_chipco_bcm4331_ext_pa_lines_ctl(&bus->drv_cc, true); - err = bcma_sprom_valid(sprom, SSB_SPROMSIZE_WORDS_R4); if (err) { - bcma_warn(bus, "invalid sprom read from the PCIe card, try to use fallback sprom\n"); + bcma_warn(bus, "Invalid SPROM read from the PCIe card, trying to use fallback SPROM\n"); err = bcma_fill_sprom_with_fallback(bus, &bus->sprom); - goto out; + } else { + bcma_sprom_extract_r8(bus, sprom); + kfree(sprom); } - bcma_sprom_extract_r8(bus, sprom); - -out: - kfree(sprom); return err; } |