diff options
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c index f0d797ab74d8..44022b1845ce 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c @@ -34,6 +34,9 @@ #define SYSMGR_EMACGRP_CTRL_PHYSEL_MASK 0x00000003 #define SYSMGR_EMACGRP_CTRL_PTP_REF_CLK_MASK 0x00000010 +#define SYSMGR_FPGAGRP_MODULE_REG 0x00000028 +#define SYSMGR_FPGAGRP_MODULE_EMAC 0x00000004 + #define EMAC_SPLITTER_CTRL_REG 0x0 #define EMAC_SPLITTER_CTRL_SPEED_MASK 0x3 #define EMAC_SPLITTER_CTRL_SPEED_10 0x2 @@ -148,7 +151,7 @@ static int socfpga_dwmac_setup(struct socfpga_dwmac *dwmac) int phymode = dwmac->interface; u32 reg_offset = dwmac->reg_offset; u32 reg_shift = dwmac->reg_shift; - u32 ctrl, val; + u32 ctrl, val, module; switch (phymode) { case PHY_INTERFACE_MODE_RGMII: @@ -175,12 +178,19 @@ 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) + if (dwmac->f2h_ptp_ref_clk) { ctrl |= SYSMGR_EMACGRP_CTRL_PTP_REF_CLK_MASK << (reg_shift / 2); - else + regmap_read(sys_mgr_base_addr, SYSMGR_FPGAGRP_MODULE_REG, + &module); + module |= (SYSMGR_FPGAGRP_MODULE_EMAC << (reg_shift / 2)); + regmap_write(sys_mgr_base_addr, SYSMGR_FPGAGRP_MODULE_REG, + module); + } else { ctrl &= ~(SYSMGR_EMACGRP_CTRL_PTP_REF_CLK_MASK << (reg_shift / 2)); + } regmap_write(sys_mgr_base_addr, reg_offset, ctrl); + return 0; } |