diff options
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/rockchip/pinctrl_rk3399.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/pinctrl/rockchip/pinctrl_rk3399.c b/drivers/pinctrl/rockchip/pinctrl_rk3399.c index 6eb657fd5a..c09cd826f6 100644 --- a/drivers/pinctrl/rockchip/pinctrl_rk3399.c +++ b/drivers/pinctrl/rockchip/pinctrl_rk3399.c @@ -244,6 +244,24 @@ static void pinctrl_rk3399_gmac_config(struct rk3399_grf_regs *grf, int mmc_id) rk_clrsetreg(&grf->gpio3c_iomux, GRF_GPIO3C1_SEL_MASK, GRF_MAC_TXCLK << GRF_GPIO3C1_SEL_SHIFT); + + /* Set drive strength for GMAC tx io, value 3 means 13mA */ + rk_clrsetreg(&grf->gpio3_e[0], + GRF_GPIO3A0_E_MASK | GRF_GPIO3A1_E_MASK | + GRF_GPIO3A4_E_MASK | GRF_GPIO3A5_E0_MASK, + 3 << GRF_GPIO3A0_E_SHIFT | + 3 << GRF_GPIO3A1_E_SHIFT | + 3 << GRF_GPIO3A4_E_SHIFT | + 1 << GRF_GPIO3A5_E0_SHIFT); + rk_clrsetreg(&grf->gpio3_e[1], + GRF_GPIO3A5_E12_MASK, + 1 << GRF_GPIO3A5_E12_SHIFT); + rk_clrsetreg(&grf->gpio3_e[2], + GRF_GPIO3B4_E_MASK, + 3 << GRF_GPIO3B4_E_SHIFT); + rk_clrsetreg(&grf->gpio3_e[4], + GRF_GPIO3C1_E_MASK, + 3 << GRF_GPIO3C1_E_SHIFT); } #endif |