From 7820d4281a0d746a92992a9117aec007628ae3fe Mon Sep 17 00:00:00 2001 From: Jeff Kirsher Date: Wed, 16 Aug 2006 13:39:00 -0700 Subject: [PATCH] e1000: Force full DMA clocking for 10/100 speed Signed-off-by: Jeff Kirsher Signed-off-by: Auke Kok --- drivers/net/e1000/e1000_hw.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/net/e1000/e1000_hw.c b/drivers/net/e1000/e1000_hw.c index 3728f33045c..8eddfdf62f5 100644 --- a/drivers/net/e1000/e1000_hw.c +++ b/drivers/net/e1000/e1000_hw.c @@ -718,6 +718,17 @@ e1000_init_hw(struct e1000_hw *hw) DEBUGFUNC("e1000_init_hw"); + /* force full DMA clock frequency for 10/100 on ICH8 A0-B0 */ + if (hw->mac_type == e1000_ich8lan) { + reg_data = E1000_READ_REG(hw, TARC0); + reg_data |= 0x30000000; + E1000_WRITE_REG(hw, TARC0, reg_data); + + reg_data = E1000_READ_REG(hw, STATUS); + reg_data &= ~0x80000000; + E1000_WRITE_REG(hw, STATUS, reg_data); + } + /* Initialize Identification LED */ ret_val = e1000_id_led_init(hw); if(ret_val) { -- 2.41.0