From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1go7jX-0003DU-9q for barebox@lists.infradead.org; Mon, 28 Jan 2019 14:17:57 +0000 From: Sascha Hauer Date: Mon, 28 Jan 2019 15:17:49 +0100 Message-Id: <20190128141749.19262-1-s.hauer@pengutronix.de> MIME-Version: 1.0 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH] ARM: omap: Wago PFC200: Initialize switch registers To: Barebox List Cc: Heinrich.Toews@wago.com The PFC200 has a KSZ886x switch connected. Some of its registers need to be initialized for proper ehternet support. Add the initialization code. Signed-off-by: Sascha Hauer Cc: Heinrich.Toews@wago.com --- arch/arm/boards/wago-pfc-am35xx/board.c | 45 +++++++++++++++++++++++++ 1 file changed, 45 insertions(+) diff --git a/arch/arm/boards/wago-pfc-am35xx/board.c b/arch/arm/boards/wago-pfc-am35xx/board.c index 2bad40912d..c0a039ba50 100644 --- a/arch/arm/boards/wago-pfc-am35xx/board.c +++ b/arch/arm/boards/wago-pfc-am35xx/board.c @@ -3,6 +3,7 @@ * Copyright (C) 2014 WAGO Kontakttechnik GmbH & Co. KG * Author: Heinrich Toews */ +#define pr_fmt(fmt) "pfc200: " fmt #include #include @@ -10,6 +11,8 @@ #include #include #include +#include +#include #include #include @@ -23,6 +26,48 @@ static int pfc200_mem_init(void) } mem_initcall(pfc200_mem_init); +#define BMCR_HP_MDIX 0x20 + +static int pfc200_phy_fixup(struct mii_bus *mii, int phyadr) +{ + struct phy_device *phydev; + int ret; + + phydev = mdiobus_scan(mii, phyadr); + + if (IS_ERR(phydev)) { + pr_err("Cannot find phydev %d on mii bus\n", phyadr); + return PTR_ERR(phydev); + } + + ret = phy_write(phydev, MII_BMCR, BMCR_ANENABLE | BMCR_HP_MDIX); + if (ret) + pr_err("Failed to write to phy: %s\n", strerror(-ret)); + + return ret; +} + +static int pfc200_late_init(void) +{ + struct mii_bus *mii; + + if (!of_machine_is_compatible("ti,pfc200")) + return 0; + + mii = mdiobus_get_bus(0); + if (!mii) { + pr_err("Cannot find mii bus 0\n"); + return -ENODEV; + } + + pfc200_phy_fixup(mii, 1); + pfc200_phy_fixup(mii, 2); + + return 0; +} +late_initcall(pfc200_late_init); + + #define GPIO_KSZ886x_RESET 136 static int pfc200_devices_init(void) -- 2.20.1 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox