From acd12dde26eef5186a9d2ead9399d136932d2398 Mon Sep 17 00:00:00 2001 From: stephen hemminger Date: Sun, 7 Feb 2010 06:24:50 +0000 Subject: [PATCH] sky2: disable ASF on Yukon Supreme Clone of vendor code to disable ASF on Extreme and Supreme chips. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- drivers/net/sky2.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index 1593ed49e8fe..1aa1f3316702 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -3035,11 +3035,20 @@ static void sky2_reset(struct sky2_hw *hw) u32 hwe_mask = Y2_HWE_ALL_MASK; /* disable ASF */ - if (hw->chip_id == CHIP_ID_YUKON_EX) { + if (hw->chip_id == CHIP_ID_YUKON_EX + || hw->chip_id == CHIP_ID_YUKON_SUPR) { + sky2_write32(hw, CPU_WDOG, 0); status = sky2_read16(hw, HCU_CCSR); status &= ~(HCU_CCSR_AHB_RST | HCU_CCSR_CPU_RST_MODE | HCU_CCSR_UC_STATE_MSK); + /* + * CPU clock divider shouldn't be used because + * - ASF firmware may malfunction + * - Yukon-Supreme: Parallel FLASH doesn't support divided clocks + */ + status &= ~HCU_CCSR_CPU_CLK_DIVIDE_MSK; sky2_write16(hw, HCU_CCSR, status); + sky2_write32(hw, CPU_WDOG, 0); } else sky2_write8(hw, B28_Y2_ASF_STAT_CMD, Y2_ASF_RESET); sky2_write16(hw, B0_CTST, Y2_ASF_DISABLE); -- 2.20.1