1 files changed, 172 insertions, 0 deletions

diff --git a/lib/chibios-contrib/ext/mcux-sdk/devices/MIMX8DX4/system_MIMX8DX4_cm4.c b/lib/chibios-contrib/ext/mcux-sdk/devices/MIMX8DX4/system_MIMX8DX4_cm4.c
new file mode 100644
index 000000000..86e7a2caa
--- /dev/null
+++ b/lib/chibios-contrib/ext/mcux-sdk/devices/MIMX8DX4/system_MIMX8DX4_cm4.c
@@ -0,0 +1,172 @@
+/*
+** ###################################################################
+**     Processor:           MIMX8DX4AVLFZ
+**     Compilers:           GNU C Compiler
+**                          IAR ANSI C/C++ Compiler for ARM
+**                          Keil ARM C/C++ Compiler
+**
+**     Reference manual:    IMX8DQXPRM, Rev. E, 6/2019
+**     Version:             rev. 4.0, 2020-06-19
+**     Build:               b200806
+**
+**     Abstract:
+**         Provides a system configuration function and a global variable that
+**         contains the system frequency. It configures the device and initializes
+**         the oscillator (PLL) that is part of the microcontroller device.
+**
+**     Copyright 2016 Freescale Semiconductor, Inc.
+**     Copyright 2016-2020 NXP
+**     All rights reserved.
+**
+**     SPDX-License-Identifier: BSD-3-Clause
+**
+**     http:                 www.nxp.com
+**     mail:                 [email protected]
+**
+**     Revisions:
+**     - rev. 1.0 (2016-06-02)
+**         Initial version.
+**     - rev. 2.0 (2017-08-23)
+**         RevA Header EAR
+**     - rev. 3.0 (2018-08-22)
+**         RevB Header EAR
+**     - rev. 4.0 (2020-06-19)
+**         RevC Header RFP
+**
+** ###################################################################
+*/
+
+/*!
+ * @file MIMX8DX4_cm4
+ * @version 1.0
+ * @date 060820
+ * @brief Device specific configuration file for MIMX8DX4_cm4 (implementation file)
+ *
+ * Provides a system configuration function and a global variable that contains
+ * the system frequency. It configures the device and initializes the oscillator
+ * (PLL) that is part of the microcontroller device.
+ */
+
+#include <stdint.h>
+#include "fsl_device_registers.h"
+
+/* ----------------------------------------------------------------------------
+   -- Core clock
+   ---------------------------------------------------------------------------- */
+
+uint32_t SystemCoreClock = DEFAULT_SYSTEM_CLOCK;
+static sc_ipc_t ipcHandle;
+
+/* ----------------------------------------------------------------------------
+   -- SystemInit()
+   ---------------------------------------------------------------------------- */
+
+void SystemInit(void)
+{
+#if (ENABLE_ECC_DEBUG)
+    volatile uint32_t *p = (uint32_t *)0xE0080480U;
+
+    /* Configure LMEM Parity/ECC Control Register
+    ;
+    ; Note: ECC Multi-bit IRQ should be disabled
+    ;       prior to list/dump of locations that
+    ;       have not been written to avoid vectoring
+    ;       to the NMI
+    ;
+    ; 31:22 RESERVED
+    ; 21    Enable Cache Parity IRQ
+    ; 20    Enable Cache Parity Report
+    ; 19:17 RESERVED
+    ; 16    Enable RAM Parity Reporting
+    ; 15:10 RESERVED
+    ; 9     Enable RAM ECC 1-bit IRQ
+    ; 8     Enable RAM ECC 1-bit Report
+    ; 7:2   RESERVED
+    ; 1     Enable RAM ECC Multi-bit IRQ
+    ; 0     Enable RAM ECC Multi-bit
+    */
+    *p = 0x00300003;
+#endif
+
+#if ((__FPU_PRESENT == 1) && (__FPU_USED == 1))
+    SCB->CPACR |= ((3UL << 10 * 2) | (3UL << 11 * 2)); /* set CP10, CP11 Full Access */
+#endif                                                 /* ((__FPU_PRESENT == 1) && (__FPU_USED == 1)) */
+
+#if (DISABLE_WDOG)
+    CM4__WDOG->CNT   = WDOG_UPDATE_KEY;
+    CM4__WDOG->TOVAL = 0xFFFF;
+    CM4__WDOG->CS    = (uint32_t)((CM4__WDOG->CS) & ~WDOG_CS_EN_MASK) | WDOG_CS_UPDATE_MASK;
+#endif /* (DISABLE_WDOG) */
+
+    /* Initialize Cache */
+    /* Enable Code Bus Cache */
+    /* set command to invalidate all ways, and write GO bit to initiate command */
+    LMEM->PCCCR |= LMEM_PCCCR_INVW1_MASK | LMEM_PCCCR_INVW0_MASK;
+    LMEM->PCCCR |= LMEM_PCCCR_GO_MASK;
+    /* Wait until the command completes */
+    while ((LMEM->PCCCR & LMEM_PCCCR_GO_MASK) != 0UL)
+    {
+    }
+    /* Enable cache, enable write buffer */
+    LMEM->PCCCR |= (LMEM_PCCCR_ENWRBUF_MASK | LMEM_PCCCR_ENCACHE_MASK);
+
+    /* Enable System Bus Cache */
+    /* set command to invalidate all ways, and write GO bit to initiate command */
+    LMEM->PSCCR |= LMEM_PSCCR_INVW1_MASK | LMEM_PSCCR_INVW0_MASK;
+    LMEM->PSCCR |= LMEM_PSCCR_GO_MASK;
+    /* Wait until the command completes */
+    while ((LMEM->PSCCR & LMEM_PSCCR_GO_MASK) != 0UL)
+    {
+    }
+    /* Enable cache, enable write buffer */
+    LMEM->PSCCR |= (LMEM_PSCCR_ENWRBUF_MASK | LMEM_PSCCR_ENCACHE_MASK);
+    /* i.MX8QX systemInit */
+}
+
+/* ----------------------------------------------------------------------------
+   -- SystemCoreClockUpdate()
+   ---------------------------------------------------------------------------- */
+
+void SystemCoreClockUpdate(void)
+{
+    /* i.MX8QX SystemCoreClockUpdate */
+    sc_err_t err;
+    uint32_t freq = SystemCoreClock;
+
+    err = sc_pm_get_clock_rate(ipcHandle, SC_R_M4_0_PID0, SC_PM_CLK_CPU, &freq);
+
+    if (SC_ERR_NONE == err)
+    {
+        SystemCoreClock = freq;
+    }
+}
+
+/* ----------------------------------------------------------------------------
+   -- SystemInitScfwIpc()
+   ---------------------------------------------------------------------------- */
+
+void SystemInitScfwIpc(void)
+{
+    sc_ipc_t ipc;
+    sc_err_t err;
+
+    err = sc_ipc_open(&ipc, (sc_ipc_id_t)CM4__MU1_A);
+
+    if (err == SC_ERR_NONE)
+    {
+        ipcHandle = ipc;
+    }
+    else
+    {
+        ipcHandle = 0;
+    }
+}
+
+/* ----------------------------------------------------------------------------
+   -- SystemGetScfwIpcHandle()
+   ---------------------------------------------------------------------------- */
+
+sc_ipc_t SystemGetScfwIpcHandle(void)
+{
+    return ipcHandle;
+}