From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michael Walle Date: Wed, 6 May 2020 21:14:58 +0200 Subject: [PATCH v3 11/12] phy: atheros: ar8035: remove static clock config In-Reply-To: <20200506191459.10668-1-michael@walle.cc> References: <20200506191459.10668-1-michael@walle.cc> Message-ID: <20200506191459.10668-12-michael@walle.cc> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de We can configure the clock output in the device tree. Disable the hardcoded one in here. This is highly board-specific and should have never been enabled in the PHY driver. If bisecting shows that this commit breaks your board it probably depends on the clock output of your Atheros AR8035 PHY. Please have a look at doc/device-tree-bindings/net/phy/atheros.txt. You need to set "clk-out-frequency = <125000000>" because that value was the hardcoded value until this commit. Signed-off-by: Michael Walle --- drivers/net/phy/atheros.c | 13 ------------- 1 file changed, 13 deletions(-) diff --git a/drivers/net/phy/atheros.c b/drivers/net/phy/atheros.c index 3cd301c50e..3142733105 100644 --- a/drivers/net/phy/atheros.c +++ b/drivers/net/phy/atheros.c @@ -38,12 +38,6 @@ #define AR803x_CLK_25M_62_5MHZ_DSP 5 #define AR803x_CLK_25M_125MHZ_PLL 6 #define AR803x_CLK_25M_125MHZ_DSP 7 - -/* AR8035: Select frequency on CLK_25M pin through bits 4:3 */ -#define AR8035_CLK_25M_FREQ_25M (0 | 0) -#define AR8035_CLK_25M_FREQ_50M (0 | BIT(3)) -#define AR8035_CLK_25M_FREQ_62M (BIT(4) | 0) -#define AR8035_CLK_25M_FREQ_125M (BIT(4) | BIT(3)) #define AR8035_CLK_25M_MASK GENMASK(4, 3) #define AR803x_CLK_25M_DR_MASK GENMASK(8, 7) @@ -344,18 +338,11 @@ static int ar8031_config(struct phy_device *phydev) static int ar8035_config(struct phy_device *phydev) { int ret; - int regval; ret = ar803x_of_init(phydev); if (ret < 0) return ret; - /* Configure CLK_25M output clock@125 MHz */ - regval = phy_read_mmd(phydev, MDIO_MMD_AN, AR803x_CLK_25M_SEL_REG); - regval &= ~AR8035_CLK_25M_MASK; /* No surprises */ - regval |= AR8035_CLK_25M_FREQ_125M; - phy_write_mmd(phydev, MDIO_MMD_AN, AR803x_CLK_25M_SEL_REG, regval); - ret = ar803x_delay_config(phydev); if (ret < 0) return ret; -- 2.20.1