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| author | Vineetha G. Jaya Kumaran <vineetha.g.jaya.kumaran@intel.com> | 2020-10-28 00:00:51 +0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2020-10-30 09:59:26 -0700 |
| commit | be1c7eae8c7dfc84b826ca7796d90f36d4abf58a (patch) | |
| tree | 2d15f884d060a9a4ce7514a24e541bd309ee6262 /drivers/net/ethernet/stmicro/stmmac/dwmac4.h | |
| parent | 8911097fbfb322d234be8b4441ebd5c2ac53f1a4 (diff) | |
| download | lwn-be1c7eae8c7dfc84b826ca7796d90f36d4abf58a.tar.gz lwn-be1c7eae8c7dfc84b826ca7796d90f36d4abf58a.zip | |
net: stmmac: Enable EEE HW LPI timer with auto SW/HW switching
This patch enables the HW LPI Timer which controls the automatic entry
and exit of the LPI state.
The EEE LPI timer value is configured through ethtool. The driver will
auto select the LPI HW timer if the value in the HW timer supported range.
Else, the driver will fallback to SW timer.
Signed-off-by: Vineetha G. Jaya Kumaran <vineetha.g.jaya.kumaran@intel.com>
Signed-off-by: Voon Weifeng <weifeng.voon@intel.com>
Link: https://lore.kernel.org/r/20201027160051.22898-1-weifeng.voon@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/dwmac4.h')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac4.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4.h b/drivers/net/ethernet/stmicro/stmmac/dwmac4.h index 592b043f9676..82df91c130f7 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac4.h +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4.h @@ -176,9 +176,11 @@ enum power_event { */ #define GMAC4_LPI_CTRL_STATUS 0xd0 #define GMAC4_LPI_TIMER_CTRL 0xd4 +#define GMAC4_LPI_ENTRY_TIMER 0xd8 /* LPI control and status defines */ #define GMAC4_LPI_CTRL_STATUS_LPITCSE BIT(21) /* LPI Tx Clock Stop Enable */ +#define GMAC4_LPI_CTRL_STATUS_LPIATE BIT(20) /* LPI Timer Enable */ #define GMAC4_LPI_CTRL_STATUS_LPITXA BIT(19) /* Enable LPI TX Automate */ #define GMAC4_LPI_CTRL_STATUS_PLS BIT(17) /* PHY Link Status */ #define GMAC4_LPI_CTRL_STATUS_LPIEN BIT(16) /* LPI Enable */ |