diff options
| -rw-r--r-- | package/mac80211/patches/601-rt2x00-fix-hang-on-ifdown.patch | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/package/mac80211/patches/601-rt2x00-fix-hang-on-ifdown.patch b/package/mac80211/patches/601-rt2x00-fix-hang-on-ifdown.patch new file mode 100644 index 0000000000..2f9b5d6f79 --- /dev/null +++ b/package/mac80211/patches/601-rt2x00-fix-hang-on-ifdown.patch @@ -0,0 +1,29 @@ +From 27ed5ec6924c17b76d65b697a162bafee7bd8e4e Mon Sep 17 00:00:00 2001 +From: Helmut Schaa <helmut.schaa@googlemail.com> +Date: Mon, 21 Jun 2010 10:03:05 +0200 +Subject: [PATCH] rt2x00: fix rt2800pci hang on ifdown + +rt2800pci hangs the system on rt305x SoC devices on ifdown. Work around +this issue by disabling TX DMA prior to resetting the TX queue indices. + +This patch is not suitable for upstream inclusion but is just meant as +a workaround until a proper solution is implemented. + +Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> +--- + drivers/net/wireless/rt2x00/rt2800pci.c | 4 ++++ + 1 files changed, 4 insertions(+), 0 deletions(-) + +--- a/drivers/net/wireless/rt2x00/rt2800pci.c ++++ b/drivers/net/wireless/rt2x00/rt2800pci.c +@@ -585,6 +585,10 @@ static void rt2800pci_kill_tx_queue(stru + return; + } + ++ rt2800_register_read(rt2x00dev, WPDMA_GLO_CFG, ®); ++ rt2x00_set_field32(®, WPDMA_GLO_CFG_ENABLE_TX_DMA, 0); ++ rt2800_register_write(rt2x00dev, WPDMA_GLO_CFG, reg); ++ + rt2800_register_read(rt2x00dev, WPDMA_RST_IDX, ®); + rt2x00_set_field32(®, WPDMA_RST_IDX_DTX_IDX0, (queue->qid == QID_AC_BE)); + rt2x00_set_field32(®, WPDMA_RST_IDX_DTX_IDX1, (queue->qid == QID_AC_BK)); |