[PATCH v3 1/2] imx8mp_evk: Simplify Ethernet initialization

[Fabio Estevam]

From: Fabio Estevam <festevam at denx.de>

With DM enabled, there is no need for board code to initialize
the Ethernet interfaces.

The RTL8211FDI Ethernet PHYs have 25MHz oscillator, so there is no
need to enable the RGMII TX clk output.

Also, there is no need for describing the deprecated phy-reset FEC
properties, nor passing reset properties to the EQOS interface in
u-boot.dtsi.

Remove all these unneeded pieces.

Tested both Ethernet interfaces after these changes.

Signed-off-by: Fabio Estevam <festevam at denx.de>
Reviewed-by: Hugo Villeneuve <hvilleneuve at dimonoff.com>
---
Changes since v2:
- Only collected Hugo's tag.

 arch/arm/dts/imx8mp-evk-u-boot.dtsi     | 14 -------------
 board/freescale/imx8mp_evk/imx8mp_evk.c | 28 +------------------------
 2 files changed, 1 insertion(+), 41 deletions(-)

diff --git a/arch/arm/dts/imx8mp-evk-u-boot.dtsi b/arch/arm/dts/imx8mp-evk-u-boot.dtsi
index 0bf489b46248..51c84383673c 100644
--- a/arch/arm/dts/imx8mp-evk-u-boot.dtsi
+++ b/arch/arm/dts/imx8mp-evk-u-boot.dtsi
@@ -137,17 +137,3 @@
 &wdog1 {
 	bootph-pre-ram;
 };
-
-&ethphy0 {
-	reset-gpios = <&gpio4 22 GPIO_ACTIVE_LOW>;
-	reset-delay-us = <15000>;
-	reset-post-delay-us = <100000>;
-};
-
-&fec {
-	phy-reset-gpios = <&gpio4 2 GPIO_ACTIVE_LOW>;
-	phy-reset-duration = <15>;
-	phy-reset-post-delay = <100>;
-};
-
-
diff --git a/board/freescale/imx8mp_evk/imx8mp_evk.c b/board/freescale/imx8mp_evk/imx8mp_evk.c
index a24b8c1d8608..42291c958e39 100644
--- a/board/freescale/imx8mp_evk/imx8mp_evk.c
+++ b/board/freescale/imx8mp_evk/imx8mp_evk.c
@@ -7,8 +7,6 @@
 #include <env.h>
 #include <errno.h>
 #include <init.h>
-#include <miiphy.h>
-#include <netdev.h>
 #include <linux/delay.h>
 #include <asm/global_data.h>
 #include <asm/mach-imx/iomux-v3.h>
@@ -20,33 +18,9 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-static void setup_fec(void)
-{
-	struct iomuxc_gpr_base_regs *gpr =
-		(struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR;
-
-	/* Enable RGMII TX clk output */
-	setbits_le32(&gpr->gpr[1], BIT(22));
-}
-
-#if CONFIG_IS_ENABLED(NET)
-int board_phy_config(struct phy_device *phydev)
-{
-	if (phydev->drv->config)
-		phydev->drv->config(phydev);
-	return 0;
-}
-#endif
-
 int board_init(void)
 {
-	int ret = 0;
-
-	if (IS_ENABLED(CONFIG_FEC_MXC)) {
-		setup_fec();
-	}
-
-	return ret;
+	return 0;
 }
 
 int board_late_init(void)
-- 
2.34.1