Add ETH support to PIC32 boards

hw/bsp/olimex-pic32-emz64/src/hal_bsp.c

@@ -21,6 +21,7 @@
 #include "os/mynewt.h"
 
 #include <bsp/bsp.h>
+#include <hal/hal_gpio.h>
 #include <hal/hal_bsp.h>
 #include <mcu/mips_bsp.h>
 #include <mcu/mips_hal.h>
@@ -75,6 +76,20 @@
  */
 #pragma config WINDIS=1, WDTSPGM=1, WDTPS=15
 
+#if MYNEWT_VAL(ETH_0)
+#if MYNEWT_VAL_CHOICE(PIC32_ETH_0_PHY_ITF, RMII)
+#pragma config FMIIEN=OFF
+#else
+#pragma config FMIIEN=ON
+#endif
+
+#if MYNEWT_VAL(PIC32_ETH_0_PHY_ALT_PINS)
+#pragma config FETHIO=OFF
+#else
+#pragma config FETHIO=ON
+#endif
+#endif
+
 #endif
 
 #if MYNEWT_VAL(SPIFLASH)
@@ -109,6 +124,11 @@ hal_bsp_flash_dev(uint8_t id)
 void
 hal_bsp_init(void)
 {
+    if (MYNEWT_VAL(ETH_0)) {
+        /* Remove reset from LAN8720 */
+        hal_gpio_init_out(MCU_GPIO_PORTB(11), 1);
+    }
+
     pic32mz_periph_create();
 #if MYNEWT_VAL(SPIFLASH) && MYNEWT_VAL(BUS_DRIVER_PRESENT)
     rc = spiflash_create_spi_dev(&spiflash_dev.dev,

hw/bsp/olimex-pic32-emz64/syscfg.yml

@@ -43,6 +43,10 @@ syscfg.vals:
     SPI_3_MASTER: 1
     SPI_3_MASTER_PIN_MOSI: MCU_GPIO_PORTD(5)
     SPI_3_MASTER_PIN_MISO: MCU_GPIO_PORTD(11)
+    PIC32_ETH_0_PHY_ADDR: 0
+    PIC32_ETH_0_PHY_ITF: RMII
+    PIC32_ETH_0_PHY_IRQ_PIN: MCU_GPIO_PORTB(1)
+    PIC32_ETH_0_PHY_ALT_PINS: 0
     CONSOLE_UART_DEV: '"uart3"'
 
     SYSTEM_CLOCK_SRC: POSC_PLL

hw/bsp/olimex-pic32-hmz144/src/hal_bsp.c

@@ -75,6 +75,20 @@
  */
 #pragma config WINDIS=1, WDTSPGM=1, WDTPS=15
 
+#if MYNEWT_VAL(ETH_0)
+#if MYNEWT_VAL_CHOICE(PIC32_ETH_0_PHY_ITF, RMII)
+#pragma config FMIIEN=OFF
+#else
+#pragma config FMIIEN=ON
+#endif
+
+#if MYNEWT_VAL(PIC32_ETH_0_PHY_ALT_PINS)
+#pragma config FETHIO=OFF
+#else
+#pragma config FETHIO=ON
+#endif
+#endif
+
 #endif
 
 #if MYNEWT_VAL(SPIFLASH)

hw/mcu/microchip/pic32mz/pkg.yml

@@ -30,3 +30,6 @@ pkg.deps.(UART_0 || UART_1 || UART_2 || UART_3 || UART_4 || UART_5):
 
 pkg.deps:
     - "@apache-mynewt-core/hw/hal"
+
+pkg.deps.ETH_0:
+    - "@apache-mynewt-core/hw/drivers/lwip/pic32_eth"

hw/mcu/microchip/pic32mz/src/pic32mz_periph.c

@@ -30,6 +30,9 @@
 #include <mcu/mips_hal.h>
 #include <uart_hal/uart_hal.h>
 #include <bsp/bsp.h>
+#if MYNEWT_VAL(ETH_0)
+#include <pic32_eth/pic32_eth.h>
+#endif
 
 static struct uart_dev uart_0_dev;
 static struct uart_dev uart_1_dev;
@@ -200,6 +203,15 @@ static const struct mips_i2c_cfg i2c_3_cfg = {
     .frequency = MYNEWT_VAL(I2C_3_FREQ_KHZ) * 1000,
 };
 
+#if MYNEWT_VAL(ETH_0)
+static const struct pic32_eth_cfg eth0_cfg = {
+    .phy_addr = MYNEWT_VAL(PIC32_ETH_0_PHY_ADDR),
+    .phy_type = MYNEWT_VAL(PIC32_ETH_0_PHY_CHIP),
+    .phy_irq_pin = MYNEWT_VAL(PIC32_ETH_0_PHY_IRQ_PIN),
+    .phy_irq_pin_pull_up = MYNEWT_VAL(PIC32_ETH_0_PHY_IRQ_PIN_PULLUP),
+};
+#endif
+
 /*
  * I2C_4 -> I2C5
  *   SCL5 -> RF5
@@ -372,11 +384,23 @@ pic32mz_periph_i2c_devs(void)
     }
 }
 
+static void
+pic32mz_periph_create_eth(void)
+{
+#if MYNEWT_VAL(ETH_0)
+    int rc;
+    rc = pic32_eth_init(&eth0_cfg);
+    assert(rc == 0);
+    (void)rc;
+#endif
+}
+
 void
 pic32mz_periph_create(void)
 {
     pic32mz_periph_create_timer_devs();
     pic32mz_periph_create_uart_devs();
     pic32mz_periph_spi_devs();
     pic32mz_periph_i2c_devs();
+    pic32mz_periph_create_eth();
 }

hw/mcu/microchip/pic32mz/syscfg.yml

@@ -239,6 +239,10 @@ syscfg.defs:
         description: "Whether to enable Timer 7"
         value:  0
 
+    ETH_0:
+        description: 'Ethernet driver for LwIP'
+        value: 0
+
     SYSTEM_CLOCK_OSC_FREQ:
         descriprion: HS Oscilator/External clock freqency.
         value: