diff options
| author | stephen hemminger <shemminger@vyatta.com> | 2010-02-07 06:24:50 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-02-10 17:56:28 -0800 |
| commit | acd12dde26eef5186a9d2ead9399d136932d2398 (patch) | |
| tree | f33441d04a249eb69749fd9e3910972bfcc65e93 /drivers/net/sky2.c | |
| parent | a0db28b898266265c1cc2ff84f041a561a265504 (diff) | |
| download | lwn-acd12dde26eef5186a9d2ead9399d136932d2398.tar.gz lwn-acd12dde26eef5186a9d2ead9399d136932d2398.zip | |
sky2: disable ASF on Yukon Supreme
Clone of vendor code to disable ASF on Extreme and Supreme chips.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/sky2.c')
| -rw-r--r-- | drivers/net/sky2.c | 11 |
1 files changed, 10 insertions, 1 deletions
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); |