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Do not force PCIe 1.0a mode in device reset on BCM5717 and newer

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controllers. BCM5785 does not require PCI 1.0a mode as well during
reset.
This commit is contained in:
Pyun YongHyeon 2012-10-10 02:35:10 +00:00
parent f846d3a23e
commit ad49eccff0
1 changed files with 5 additions and 2 deletions
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7
sys/dev/bge/if_bge.c
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@ -3604,8 +3604,11 @@ bge_reset(struct bge_softc *sc)
/* XXX: Broadcom Linux driver. */
if (sc->bge_flags & BGE_FLAG_PCIE) {
if (CSR_READ_4(sc, 0x7E2C) == 0x60) /* PCIE 1.0 */
CSR_WRITE_4(sc, 0x7E2C, 0x20);
if (sc->bge_asicrev != BGE_ASICREV_BCM5785 &&
(sc->bge_flags & BGE_FLAG_5717_PLUS) == 0) {
if (CSR_READ_4(sc, 0x7E2C) == 0x60) /* PCIE 1.0 */
CSR_WRITE_4(sc, 0x7E2C, 0x20);
}
if (sc->bge_chipid != BGE_CHIPID_BCM5750_A0) {
/* Prevent PCIE link training during global reset */
CSR_WRITE_4(sc, BGE_MISC_CFG, 1 << 29);