Messages in this thread | | | From | Voon Weifeng <> | Subject | [net-next,v1, 0/1] Enable SERDES power up/down | Date | Mon, 20 Apr 2020 23:42:51 +0800 |
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This patch is to enable Intel SERDES power up/down sequence. The SERDES converts 8/10 bits data to SGMII signal. 1.Introduced 2 new BSP callbacks ->serdes_powerup() and ->serdes_powerdown(). 2.The 2 new BSP callbacks is called in stmmac_dvr_probe() and stmmac_resume() for SERDER powerup; stmmac_dvr_remove() and stmmac_suspend() for SERDES powerdown. 3.Intel platform specific SERDES powerup and powerdown sequence functions are added in dwmac-intel.c. 4.Since configuring the SERDES is through mdio, mdio communication is needed to be up before powerup sequence. As for SERDES power-down sequence, it must be configured after all dma stop and before unregister the mdio bus. 5.New file dwmac-intel.h is created for register definition.
Voon Weifeng (1): net: stmmac: Enable SERDES power up/down sequence
.../net/ethernet/stmicro/stmmac/dwmac-intel.c | 189 ++++++++++++++++++ .../net/ethernet/stmicro/stmmac/dwmac-intel.h | 23 +++ .../net/ethernet/stmicro/stmmac/stmmac_main.c | 23 +++ include/linux/stmmac.h | 2 + 4 files changed, 237 insertions(+) create mode 100644 drivers/net/ethernet/stmicro/stmmac/dwmac-intel.h
-- 2.17.1
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