On 5/28/19 9:58 PM, Andrew Lunn wrote: > On Tue, May 28, 2019 at 09:46:47PM +0200, Marek Vasut wrote: >> On 5/28/19 9:35 PM, Heiner Kallweit wrote: >>> On 28.05.2019 21:31, Marek Vasut wrote: >>>> On 5/28/19 9:28 PM, Heiner Kallweit wrote: >>>>> On 28.05.2019 21:23, Marek Vasut wrote: >>>>>> Add support for handling the TJA11xx PHY IRQ signal. >>>>>> >>>>>> Signed-off-by: Marek Vasut <ma...@denx.de> >>>>>> Cc: Andrew Lunn <and...@lunn.ch> >>>>>> Cc: Florian Fainelli <f.faine...@gmail.com> >>>>>> Cc: Guenter Roeck <li...@roeck-us.net> >>>>>> Cc: Heiner Kallweit <hkallwe...@gmail.com> >>>>>> Cc: Jean Delvare <jdelv...@suse.com> >>>>>> Cc: linux-hwmon@vger.kernel.org >>>>>> --- >>>>>> V2: - Define each bit of the MII_INTEN register and a mask >>>>>> - Drop IRQ acking from tja11xx_config_intr() >>>>>> --- >>>>>> drivers/net/phy/nxp-tja11xx.c | 48 +++++++++++++++++++++++++++++++++++ >>>>>> 1 file changed, 48 insertions(+) >>>>>> >>>>>> diff --git a/drivers/net/phy/nxp-tja11xx.c >>>>>> b/drivers/net/phy/nxp-tja11xx.c >>>>>> index b705d0bd798b..b41af609607d 100644 >>>>>> --- a/drivers/net/phy/nxp-tja11xx.c >>>>>> +++ b/drivers/net/phy/nxp-tja11xx.c > > >>>> @@ -40,6 +40,29 @@ >>>>>> #define MII_INTSRC_TEMP_ERR BIT(1) >>>>>> #define MII_INTSRC_UV_ERR BIT(3) >>>>>> >>>>>> +#define MII_INTEN 22 >>>>>> +#define MII_INTEN_PWON_EN BIT(15) >>>>>> +#define MII_INTEN_WAKEUP_EN BIT(14) >>>>>> +#define MII_INTEN_PHY_INIT_FAIL_EN BIT(11) >>>>>> +#define MII_INTEN_LINK_STATUS_FAIL_EN BIT(10) >>>>>> +#define MII_INTEN_LINK_STATUS_UP_EN BIT(9) >>>>>> +#define MII_INTEN_SYM_ERR_EN BIT(8) >>>>>> +#define MII_INTEN_TRAINING_FAILED_EN BIT(7) >>>>>> +#define MII_INTEN_SQI_WARNING_EN BIT(6) >>>>>> +#define MII_INTEN_CONTROL_ERR_EN BIT(5) >>>>>> +#define MII_INTEN_UV_ERR_EN BIT(3) >>>>>> +#define MII_INTEN_UV_RECOVERY_EN BIT(2) >>>>>> +#define MII_INTEN_TEMP_ERR_EN BIT(1) >>>>>> +#define MII_INTEN_SLEEP_ABORT_EN BIT(0) >>>>>> +#define MII_INTEN_MASK >>>>>> \ >>>>>> + (MII_INTEN_PWON_EN | MII_INTEN_WAKEUP_EN | >>>>>> \ >>>>>> + MII_INTEN_PHY_INIT_FAIL_EN | MII_INTEN_LINK_STATUS_FAIL_EN | >>>>>> \ >>>>>> + MII_INTEN_LINK_STATUS_UP_EN | MII_INTEN_SYM_ERR_EN | >>>>>> \ >>>>>> + MII_INTEN_TRAINING_FAILED_EN | MII_INTEN_SQI_WARNING_EN | >>>>>> \ >>>>>> + MII_INTEN_CONTROL_ERR_EN | MII_INTEN_UV_ERR_EN | >>>>>> \ >>>>>> + MII_INTEN_UV_RECOVERY_EN | MII_INTEN_TEMP_ERR_EN | >>>>>> \ >>>>>> + MII_INTEN_SLEEP_ABORT_EN) >>>>> >>>>> Why do you enable all these interrupt sources? As I said, phylib needs >>>>> link change info only. >>>> >>>> Because I need them to reliably detect that the link state changed. > > Hi Marek > > That statement suggests you started with just bits 10 and 9 and it > failed to detect some sort of link up/down event? What was missed?
The link detection on the TJA1100 (not TJA1101) seems unstable at best, so I better use all the interrupt sources to nudge the PHY subsystem and have it check the link change. -- Best regards, Marek Vasut
