From: Sebastian Kropatsch Date: Sun, 14 Jul 2024 21:23:43 +0000 (+0200) Subject: phy: rockchip: snps-pcie3: Fix clearing PHP_GRF_PCIESEL_CON bits X-Git-Url: http://git.dujemihanovic.xyz/img/static/gitweb.css?a=commitdiff_plain;h=9a48ec3e91c6fbdb8d67dfd80488def8fa61b681;p=u-boot.git phy: rockchip: snps-pcie3: Fix clearing PHP_GRF_PCIESEL_CON bits The pcie1ln_sel bits for the RK3588 are getting set but not cleared due to an incorrect write mask. Use a newly introduced constant for the write mask to fix this. Also introduce a GENMASK-based constant for PCIE30_PHY_MODE. This fix is adapted from the upstream Linux commit by Sebastian Reichel: 55491a5fa163 ("phy: rockchip-snps-pcie3: fix clearing PHP_GRF_PCIESEL_CON bits") Fixes: 50e54e80679b ("phy: rockchip: snps-pcie3: Add support for RK3588") Signed-off-by: Sebastian Kropatsch Reviewed-by: Kever Yang --- diff --git a/drivers/phy/rockchip/phy-rockchip-snps-pcie3.c b/drivers/phy/rockchip/phy-rockchip-snps-pcie3.c index fadb77c25c..62b42d1805 100644 --- a/drivers/phy/rockchip/phy-rockchip-snps-pcie3.c +++ b/drivers/phy/rockchip/phy-rockchip-snps-pcie3.c @@ -36,6 +36,8 @@ #define RK3588_BIFURCATION_LANE_0_1 BIT(0) #define RK3588_BIFURCATION_LANE_2_3 BIT(1) #define RK3588_LANE_AGGREGATION BIT(2) +#define RK3588_PCIE1LN_SEL_EN (GENMASK(1, 0) << 16) +#define RK3588_PCIE30_PHY_MODE_EN (GENMASK(2, 0) << 16) /** * struct rockchip_p3phy_priv - RK DW PCIe PHY state @@ -127,13 +129,13 @@ static int rockchip_p3phy_rk3588_init(struct phy *phy) reg = mode; regmap_write(priv->phy_grf, RK3588_PCIE3PHY_GRF_CMN_CON0, - (0x7 << 16) | reg); + RK3588_PCIE30_PHY_MODE_EN | reg); /* Set pcie1ln_sel in PHP_GRF_PCIESEL_CON */ - reg = mode & 3; + reg = mode & (RK3588_BIFURCATION_LANE_0_1 | RK3588_BIFURCATION_LANE_2_3); if (reg) regmap_write(priv->pipe_grf, PHP_GRF_PCIESEL_CON, - (reg << 16) | reg); + RK3588_PCIE1LN_SEL_EN | reg); reset_deassert(&priv->p30phy); udelay(1);