diff options
| author | Rusaimi Amira Ruslan <rusaimi.amira.rusaimi@intel.com> | 2020-09-28 13:12:12 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-09-29 04:43:57 +0300 |
| commit | b4c5f83ae3f3e2b3239751c304e424eace62448b (patch) | |
| tree | cf23ef2e88d5fe01ca0106a9ff45b4d4c127975e /drivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c | |
| parent | 3f53094ded4a78c87f9dada995e01cc491c196dd (diff) | |
| download | linux-b4c5f83ae3f3e2b3239751c304e424eace62448b.tar.xz | |
stmmac: intel: Adding ref clock 1us tic for LPI cntr
Adding reference clock (1us tic) for all LPI timer on Intel platforms.
The reference clock is derived from ptp clk. This also enables all LPI
counter.
Signed-off-by: Rusaimi Amira Ruslan <rusaimi.amira.rusaimi@intel.com>
Signed-off-by: Voon Weifeng <weifeng.voon@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c index b1323d5c95b5..f61cb997a8f6 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel-plat.c @@ -11,6 +11,7 @@ #include <linux/platform_device.h> #include <linux/stmmac.h> +#include "dwmac4.h" #include "stmmac.h" #include "stmmac_platform.h" @@ -146,6 +147,14 @@ static int intel_eth_plat_probe(struct platform_device *pdev) } plat_dat->bsp_priv = dwmac; + plat_dat->eee_usecs_rate = plat_dat->clk_ptp_rate; + + if (plat_dat->eee_usecs_rate > 0) { + u32 tx_lpi_usec; + + tx_lpi_usec = (plat_dat->eee_usecs_rate / 1000000) - 1; + writel(tx_lpi_usec, stmmac_res.addr + GMAC_1US_TIC_COUNTER); + } ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res); if (ret) { |