boards: nxp: mimxrt1180_evk: add board netc init

Added board netc init for mimxrt1180_evk.

Signed-off-by: Yangbo Lu <[email protected]>

Author: yangbolu1991

boards/nxp/mimxrt1180_evk/CMakeLists.txt

@@ -4,8 +4,10 @@
 # SPDX-License-Identifier: Apache-2.0
 #
 
+zephyr_library()
+zephyr_library_sources(board.c)
+
 if(CONFIG_NXP_IMXRT_BOOT_HEADER)
-  zephyr_library()
   if(NOT ((DEFINED CONFIG_BOARD_MIMXRT1180_EVK_MIMXRT1189_CM33)
 	  OR (DEFINED CONFIG_BOARD_MIMXRT1180_EVK_MIMXRT1189_CM7)))
     message(WARNING "It appears you are using the board definition for "

boards/nxp/mimxrt1180_evk/Kconfig.defconfig

@@ -12,4 +12,6 @@ config EXTERNAL_MEM_CONFIG_DATA
 config NXP_IMX_EXTERNAL_HYPERRAM
 	default y if CPU_CORTEX_M33
 
+config BOARD_EARLY_INIT_HOOK
+	default y
 endif # BOARD_MIMXRT1180_EVK

boards/nxp/mimxrt1180_evk/board.c

@@ -0,0 +1,37 @@
+/*
+ * Copyright 2024 NXP
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/devicetree.h>
+#include <zephyr/platform/hooks.h>
+#include <soc.h>
+
+#if CONFIG_BOARD_EARLY_INIT_HOOK
+void board_early_init_hook(void)
+{
+#if defined(CONFIG_ETH_NXP_IMX_NETC) && (DT_CHILD_NUM_STATUS_OKAY(DT_NODELABEL(netc)) != 0)
+	/* RMII mode */
+	BLK_CTRL_WAKEUPMIX->NETC_LINK_CFG[4] = BLK_CTRL_WAKEUPMIX_NETC_LINK_CFG_MII_PROT(1);
+
+	/* Output reference clock for RMII */
+	BLK_CTRL_WAKEUPMIX->NETC_PORT_MISC_CFG |=
+		BLK_CTRL_WAKEUPMIX_NETC_PORT_MISC_CFG_PORT4_RMII_REF_CLK_DIR_MASK;
+
+	/* Unlock the IERB. It will warm reset whole NETC. */
+	NETC_PRIV->NETCRR &= ~NETC_PRIV_NETCRR_LOCK_MASK;
+
+	while ((NETC_PRIV->NETCRR & NETC_PRIV_NETCRR_LOCK_MASK) != 0U) {
+	}
+
+	/* Set the access attribute, otherwise MSIX access will be blocked. */
+	NETC_IERB->ARRAY_NUM_RC[0].RCMSIAMQR &= ~(7U << 27);
+	NETC_IERB->ARRAY_NUM_RC[0].RCMSIAMQR |= (1U << 27);
+
+	/* Lock the IERB. */
+	NETC_PRIV->NETCRR |= NETC_PRIV_NETCRR_LOCK_MASK;
+	while ((NETC_PRIV->NETCSR & NETC_PRIV_NETCSR_STATE_MASK) != 0U) {
+	}
+#endif
+}
+#endif