[RFC] Pull request for ip_k66f board 13.04

boards/arm/ip_k66f/Kconfig.defconfig

@@ -9,7 +9,7 @@ config BOARD
 	default "ip_k66f"
 
 config OSC_XTAL0_FREQ
-	default 50000000
+	default 12000000
 
 config MCG_PRDIV0
 	default 0x0
@@ -20,6 +20,41 @@ config MCG_VDIV0
 config MCG_FCRDIV
 	default 1
 
+if SPI
+config SPI_1
+	default y
+
+endif # SPI
+
+if NETWORKING
+
+config NET_L2_ETHERNET
+        default y if !MODEM
+
+config ETH_MCUX
+        default y if NET_L2_ETHERNET
+
+config ETH_MCUX_0
+        default y if ETH_MCUX
+
+config ETH_MCUX_RMII_EXT_CLK
+        default y if ETH_MCUX
+
+config ETH_MCUX_NO_PHY_SMI
+        default y if ETH_MCUX
+
+config ETH_MCUX_FIXED_PHY
+        default y if ETH_MCUX
+
+endif # NETWORKING
+
+if DSA
+
+config DSA_KSZ8794
+        default y if SPI
+
+endif # DSA
+
 if PINMUX_MCUX
 
 config PINMUX_MCUX_PORTA
@@ -28,6 +63,9 @@ config PINMUX_MCUX_PORTA
 config PINMUX_MCUX_PORTB
 	default y if SPI_1
 
+config PINMUX_MCUX_PORTE
+	default y if ETH_MCUX_0
+
 endif # PINMUX_MCUX
 
 if GPIO_MCUX
@@ -38,6 +76,9 @@ config GPIO_MCUX_PORTA
 config GPIO_MCUX_PORTB
 	default y
 
+config GPIO_MCUX_PORTE
+	default y
+
 endif # GPIO_MCUX
 
 endif # BOARD_IP_K66F

boards/arm/ip_k66f/ip_k66f.dts

@@ -15,6 +15,7 @@
 	aliases {
 		led0 = &red0_led;
 		led2 = &red2_led;
+		dsa-spi = &spi1;
 	};
 
 	chosen {
@@ -81,3 +82,14 @@
 		};
 	};
 };
+
+&eth {
+        status = "okay";
+};
+
+&spi1 {
+        status = "okay";
+
+	cs-gpios = <&gpiob 10 GPIO_ACTIVE_LOW>;
+	clock-frequency = <10000000>;
+};

boards/arm/ip_k66f/ip_k66f_defconfig

@@ -6,11 +6,30 @@ CONFIG_BOARD_IP_K66F=y
 CONFIG_CORTEX_M_SYSTICK=y
 CONFIG_GPIO=y
 CONFIG_PINMUX=y
-CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=180000000
+CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=120000000
 CONFIG_OSC_LOW_POWER=y
-CONFIG_OSC_XTAL0_FREQ=12000000
 CONFIG_K6X_FLEXBUS_CLOCK_DIVIDER=2
 CONFIG_USE_SEGGER_RTT=y
 
+# Add RTT console support
+CONFIG_CONSOLE=y
+CONFIG_RTT_CONSOLE=y
+CONFIG_SEGGER_RTT_BUFFER_SIZE_DOWN=64
+
+# Add RTT SHELL support -> Instead of LOG_BACKEND_RTT
+CONFIG_SHELL=y
+CONFIG_SHELL_BACKEND_RTT=y
+CONFIG_SHELL_BACKEND_SERIAL=n
+
 # Enable MPU
 CONFIG_ARM_MPU=y
+
+# Setup ETH
+CONFIG_NETWORKING=y
+CONFIG_DSA=y
+
+# The KSZ8794 needs SPI to get MII registers data
+CONFIG_SPI=y
+
+# Set default LOG level to DBG
+#CONFIG_LOG_DEFAULT_LEVEL=4

boards/arm/ip_k66f/pinmux.c

@@ -7,6 +7,7 @@
 #include <init.h>
 #include <drivers/pinmux.h>
 #include <fsl_port.h>
+#include <drivers/gpio.h>
 
 static int ip_k66f_pinmux_init(struct device *dev)
 {
@@ -17,10 +18,49 @@ static int ip_k66f_pinmux_init(struct device *dev)
 		device_get_binding(CONFIG_PINMUX_MCUX_PORTA_NAME);
 #endif
 
+#ifdef CONFIG_PINMUX_MCUX_PORTB
+	struct device *portb =
+		device_get_binding(CONFIG_PINMUX_MCUX_PORTB_NAME);
+#endif
+
+#ifdef CONFIG_PINMUX_MCUX_PORTE
+	struct device *porte =
+		device_get_binding(CONFIG_PINMUX_MCUX_PORTE_NAME);
+#endif
+
 	/* Red0, Red2 LEDs */
 	pinmux_pin_set(porta, 8, PORT_PCR_MUX(kPORT_MuxAsGpio));
 	pinmux_pin_set(porta, 10, PORT_PCR_MUX(kPORT_MuxAsGpio));
 
+#if CONFIG_ETH_MCUX_0
+	pinmux_pin_set(porta, 12, PORT_PCR_MUX(kPORT_MuxAlt4));/* RMII_RXD1 */
+	pinmux_pin_set(porta, 13, PORT_PCR_MUX(kPORT_MuxAlt4));/* RMII_RXD0 */
+	pinmux_pin_set(porta, 14, PORT_PCR_MUX(kPORT_MuxAlt4));/* RMII_CRS_DV */
+	pinmux_pin_set(porta, 15, PORT_PCR_MUX(kPORT_MuxAlt4));/* RMII_RX_EN */
+	pinmux_pin_set(porta, 16, PORT_PCR_MUX(kPORT_MuxAlt4));/* RMII_TXD0 */
+	pinmux_pin_set(porta, 17, PORT_PCR_MUX(kPORT_MuxAlt4));/* RMII_TXD1 */
+	pinmux_pin_set(porta, 24, PORT_PCR_MUX(kPORT_MuxAsGpio));/* !ETH_RST */
+	pinmux_pin_set(porta, 25, PORT_PCR_MUX(kPORT_MuxAsGpio));/* !ETH_PME */
+	pinmux_pin_set(porta, 26, PORT_PCR_MUX(kPORT_MuxAsGpio));/* !ETH_INT */
+	/* RMII_REF_CLK */
+	pinmux_pin_set(porte, 26, PORT_PCR_MUX(kPORT_MuxAlt2));
+#endif
+
+#if CONFIG_SPI_1
+	/* SPI1 CS0, SCK, SOUT, SIN - Control of KSZ8794 */
+	pinmux_pin_set(portb, 10, PORT_PCR_MUX(kPORT_MuxAsGpio));
+	pinmux_pin_set(portb, 11, PORT_PCR_MUX(kPORT_MuxAlt2));
+	pinmux_pin_set(portb, 16, PORT_PCR_MUX(kPORT_MuxAlt2));
+	pinmux_pin_set(portb, 17, PORT_PCR_MUX(kPORT_MuxAlt2));
+#endif
+
+	struct device *gpioa = device_get_binding(DT_ALIAS_GPIO_A_LABEL);
+
+	/* Set !ETH_RST */
+	gpio_pin_configure(gpioa, 24, GPIO_OUTPUT_HIGH);
+	/* Set !ETH_PME */
+	gpio_pin_configure(gpioa, 25, GPIO_OUTPUT_HIGH);
+
 	return 0;
 }
 

drivers/ethernet/CMakeLists.txt

@@ -20,6 +20,7 @@ zephyr_sources_ifdef(CONFIG_ETH_MCUX		   eth_mcux.c)
 zephyr_sources_ifdef(CONFIG_ETH_SMSC911X	 eth_smsc911x.c)
 zephyr_sources_ifdef(CONFIG_ETH_STM32_HAL	 eth_stm32_hal.c)
 zephyr_sources_ifdef(CONFIG_ETH_LITEETH		 eth_liteeth.c)
+zephyr_sources_ifdef(CONFIG_DSA_KSZ8794		 dsa_ksz8794.c)
 
 if(CONFIG_ETH_NATIVE_POSIX)
 	zephyr_library()

drivers/ethernet/Kconfig

@@ -43,5 +43,6 @@ source "drivers/ethernet/Kconfig.native_posix"
 source "drivers/ethernet/Kconfig.stellaris"
 source "drivers/ethernet/Kconfig.liteeth"
 source "drivers/ethernet/Kconfig.gecko"
+source "drivers/ethernet/Kconfig.dsa"
 
 endmenu # "Ethernet Drivers"

drivers/ethernet/Kconfig.dsa

@@ -0,0 +1,21 @@
+# Distributed Switch Architecture [DSA] configuration options
+
+# Copyright (c) 2020 DENX Software Engineering GmbH
+#               Lukasz Majewski <[email protected]>
+# SPDX-License-Identifier: Apache-2.0
+
+menuconfig DSA
+	bool "Distributed Switch Architecture support"
+	depends on NETWORKING
+	help
+	  Enable Distributed Switch Architecture support. For now it only supports
+	  Kinetics ENET driver.
+
+if DSA
+
+config DSA_KSZ8794
+	bool "Enable support for KSZ8794"
+	help
+	  Add support for KSZ8794 DSA device driver.
+
+endif # DSA

drivers/ethernet/Kconfig.mcux

@@ -22,6 +22,57 @@ config ETH_MCUX_PROMISCUOUS_MODE
 	  Place the Ethernet receiver in promiscuous mode. This may be useful
 	  for debugging and not needed for normal work.
 
+config ETH_MCUX_RMII_EXT_CLK
+	bool "Enable RMII clock from external sources"
+	help
+	  Setting this option will configure MCUX clock block to feed RMII
+	  reference clock from external source (ENET_1588_CLKIN)
+
+config ETH_MCUX_NO_PHY_SMI
+	bool "Do not use SMI for PHY communication"
+	help
+	  Some PHY devices, with DSA capabilities do not use SMI for
+	  communication with MAC ENET controller. Other busses - like SPI or I2C
+	  are used instead.
+
+config ETH_MCUX_FIXED_PHY
+	bool "Enable fixed PHY setup"
+	help
+	  Some PHY devices, with DSA capabilities, have the communicaton between
+	  ENET and switch fixed.
+
+if ETH_MCUX_FIXED_PHY
+
+choice ETH_MCUX_FIXED_PHY_SPEED
+	prompt "Fixed PHY speed"
+	default ETH_MCUX_FIXED_PHY_SPEED_100
+	help
+	  Choose transmission speed for fixed PHY
+
+config ETH_MCUX_FIXED_PHY_SPEED_100
+       bool "Set fixed PHY transmission speed to 100 Mbps"
+
+config ETH_MCUX_FIXED_PHY_SPEED_10
+       bool "Set fixed PHY transmission speed to 10 Mbps"
+
+endchoice
+
+choice ETH_MCUX_FIXED_PHY_DUPLEX
+	prompt "Fixed PHY duplex"
+	default ETH_MCUX_FIXED_PHY_DUPLEX_FULL
+	help
+	  Choose duplex setup for fixed PHY
+
+config ETH_MCUX_FIXED_PHY_DUPLEX_FULL
+       bool "Set fixed PHY transmission to full duplex"
+
+config ETH_MCUX_FIXED_PHY_DUPLEX_HALF
+       bool "Set fixed PHY transmission to half duplex"
+
+endchoice
+
+endif # ETH_MCUX_FIXED_PHY
+
 config ETH_MCUX_PHY_TICK_MS
 	int "PHY poll period (ms)"
 	default 1000

drivers/ethernet/dsa.h

@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2020 DENX Software Engineering GmbH
+ *               Lukasz Majewski <[email protected]>
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef __DSA_H__
+#define __DSA_H__
+
+#include <device.h>
+#include <drivers/spi.h>
+
+extern int dsa_init(struct device *dev);
+
+#endif /* __DSA_H__ */