From: Steffen Klassert Date: Mon, 9 Jul 2007 18:50:23 +0000 (-0700) Subject: 3cSOHO100-TX needs EXTRA_PREAMBLE X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=b8a1fcee26126b566d9e28ba80c643a7a10543eb;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git 3cSOHO100-TX needs EXTRA_PREAMBLE The 3cSOHO100-TX needs a mdio_sync() before mdio_read() to read the MII transceiver registers properly. Adding EXTRA_PREAMBLE to drv_flags of the 3cSOHO100-TX will force this. This problem exists already for years (I checked back to 2.6.8). Setting duplex for the 3cSOHO100-TX was more or less a random process. Till 2.6.15 it was more likely that the diver ends up in half duplex mode, after the code change in 2.6.16 it was more likely to end up in full duplex mode. I wonder why nobody noticed this earier. Hopefully addresses Bug 7454 3c59x (3cSOHO100-TX Hurricane) slow network bug http://bugzilla.kernel.org/show_bug.cgi?id=7454 and Bug 3654 3cSOHO100-TX: No MII transceiver present http://bugzilla.kernel.org/show_bug.cgi?id=3654 Cc: Jonas Sandberg Cc: Jon Sanchez Signed-off-by: Steffen Klassert Signed-off-by: Andrew Morton Signed-off-by: Jeff Garzik --- diff --git a/drivers/net/3c59x.c b/drivers/net/3c59x.c index f26ca331615e..6deb20fc7a08 100644 --- a/drivers/net/3c59x.c +++ b/drivers/net/3c59x.c @@ -324,7 +324,7 @@ static struct vortex_chip_info { {"3c980C Python-T", PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM, 128, }, {"3cSOHO100-TX Hurricane", - PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM, 128, }, + PCI_USES_MASTER, IS_CYCLONE|HAS_NWAY|HAS_HWCKSM|EXTRA_PREAMBLE, 128, }, {"3c555 Laptop Hurricane", PCI_USES_MASTER, IS_CYCLONE|EEPROM_8BIT|HAS_HWCKSM, 128, }, {"3c556 Laptop Tornado",