diff options
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c index 401383b252a8..f0d797ab74d8 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c @@ -32,6 +32,7 @@ #define SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_RMII 0x2 #define SYSMGR_EMACGRP_CTRL_PHYSEL_WIDTH 2 #define SYSMGR_EMACGRP_CTRL_PHYSEL_MASK 0x00000003 +#define SYSMGR_EMACGRP_CTRL_PTP_REF_CLK_MASK 0x00000010 #define EMAC_SPLITTER_CTRL_REG 0x0 #define EMAC_SPLITTER_CTRL_SPEED_MASK 0x3 @@ -47,6 +48,7 @@ struct socfpga_dwmac { struct regmap *sys_mgr_base_addr; struct reset_control *stmmac_rst; void __iomem *splitter_base; + bool f2h_ptp_ref_clk; }; static void socfpga_dwmac_fix_mac_speed(void *priv, unsigned int speed) @@ -116,6 +118,8 @@ static int socfpga_dwmac_parse_data(struct socfpga_dwmac *dwmac, struct device * return -EINVAL; } + dwmac->f2h_ptp_ref_clk = of_property_read_bool(np, "altr,f2h_ptp_ref_clk"); + np_splitter = of_parse_phandle(np, "altr,emac-splitter", 0); if (np_splitter) { if (of_address_to_resource(np_splitter, 0, &res_splitter)) { @@ -171,6 +175,11 @@ static int socfpga_dwmac_setup(struct socfpga_dwmac *dwmac) ctrl &= ~(SYSMGR_EMACGRP_CTRL_PHYSEL_MASK << reg_shift); ctrl |= val << reg_shift; + if (dwmac->f2h_ptp_ref_clk) + ctrl |= SYSMGR_EMACGRP_CTRL_PTP_REF_CLK_MASK << (reg_shift / 2); + else + ctrl &= ~(SYSMGR_EMACGRP_CTRL_PTP_REF_CLK_MASK << (reg_shift / 2)); + regmap_write(sys_mgr_base_addr, reg_offset, ctrl); return 0; } |