1 files changed, 231 insertions, 0 deletions

diff --git a/lib/chibios-contrib/ext/mcux-sdk/devices/MIMXRT1015/system_MIMXRT1015.c b/lib/chibios-contrib/ext/mcux-sdk/devices/MIMXRT1015/system_MIMXRT1015.c
new file mode 100644
index 000000000..927a0d759
--- /dev/null
+++ b/lib/chibios-contrib/ext/mcux-sdk/devices/MIMXRT1015/system_MIMXRT1015.c
@@ -0,0 +1,231 @@
+/*
+** ###################################################################
+**     Processors:          MIMXRT1015CAF4A
+**                          MIMXRT1015DAF5A
+**
+**     Compilers:           Freescale C/C++ for Embedded ARM
+**                          GNU C Compiler
+**                          IAR ANSI C/C++ Compiler for ARM
+**                          Keil ARM C/C++ Compiler
+**                          MCUXpresso Compiler
+**
+**     Reference manual:    IMXRT1015RM Rev.0, 12/2018 | IMXRT1015SRM Rev.3
+**     Version:             rev. 1.2, 2019-04-29
+**     Build:               b201016
+**
+**     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. 0.1 (2018-11-05)
+**         Initial version.
+**     - rev. 1.0 (2019-01-18)
+**         Rev.0 Header GA
+**     - rev. 1.1 (2019-02-20)
+**         Update register SRC_SRSR's bitfield LOCKUP_SYSRESETREQ to LOCKUP.
+**     - rev. 1.2 (2019-04-29)
+**         Add SET/CLR/TOG register group to register CTRL, STAT, CHANNELCTRL, CH0STAT, CH0OPTS, CH1STAT, CH1OPTS, CH2STAT, CH2OPTS, CH3STAT, CH3OPTS of DCP module.
+**
+** ###################################################################
+*/
+
+/*!
+ * @file MIMXRT1015
+ * @version 1.2
+ * @date 2019-04-29
+ * @brief Device specific configuration file for MIMXRT1015 (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;
+
+/* ----------------------------------------------------------------------------
+   -- SystemInit()
+   ---------------------------------------------------------------------------- */
+
+void SystemInit (void) {
+#if ((__FPU_PRESENT == 1) && (__FPU_USED == 1))
+  SCB->CPACR |= ((3UL << 10*2) | (3UL << 11*2));    /* set CP10, CP11 Full Access in Secure mode */
+  #if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3U)
+  SCB_NS->CPACR |= ((3UL << 10*2) | (3UL << 11*2));    /* set CP10, CP11 Full Access in Non-secure mode */
+  #endif /* (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3U) */
+#endif /* ((__FPU_PRESENT == 1) && (__FPU_USED == 1)) */
+
+#if defined(__MCUXPRESSO)
+    extern uint32_t g_pfnVectors[];  // Vector table defined in startup code
+    SCB->VTOR = (uint32_t)g_pfnVectors;
+#endif
+
+/* Disable Watchdog Power Down Counter */
+    WDOG1->WMCR &= ~(uint16_t) WDOG_WMCR_PDE_MASK;
+    WDOG2->WMCR &= ~(uint16_t) WDOG_WMCR_PDE_MASK;
+
+/* Watchdog disable */
+
+#if (DISABLE_WDOG)
+    if ((WDOG1->WCR & WDOG_WCR_WDE_MASK) != 0U)
+    {
+        WDOG1->WCR &= ~(uint16_t) WDOG_WCR_WDE_MASK;
+    }
+    if ((WDOG2->WCR & WDOG_WCR_WDE_MASK) != 0U)
+    {
+        WDOG2->WCR &= ~(uint16_t) WDOG_WCR_WDE_MASK;
+    }
+    if ((RTWDOG->CS & RTWDOG_CS_CMD32EN_MASK) != 0U)
+    {
+        RTWDOG->CNT = 0xD928C520U; /* 0xD928C520U is the update key */
+    }
+    else
+    {
+        RTWDOG->CNT = 0xC520U;
+        RTWDOG->CNT = 0xD928U;
+    }
+    RTWDOG->TOVAL = 0xFFFF;
+    RTWDOG->CS = (uint32_t) ((RTWDOG->CS) & ~RTWDOG_CS_EN_MASK) | RTWDOG_CS_UPDATE_MASK;
+#endif /* (DISABLE_WDOG) */
+
+    /* Disable Systick which might be enabled by bootrom */
+    if ((SysTick->CTRL & SysTick_CTRL_ENABLE_Msk) != 0U)
+    {
+        SysTick->CTRL &= ~SysTick_CTRL_ENABLE_Msk;
+    }
+
+/* Enable instruction and data caches */
+#if defined(__ICACHE_PRESENT) && __ICACHE_PRESENT
+    if (SCB_CCR_IC_Msk != (SCB_CCR_IC_Msk & SCB->CCR)) {
+        SCB_EnableICache();
+    }
+#endif
+#if defined(__DCACHE_PRESENT) && __DCACHE_PRESENT
+    if (SCB_CCR_DC_Msk != (SCB_CCR_DC_Msk & SCB->CCR)) {
+        SCB_EnableDCache();
+    }
+#endif
+
+  SystemInitHook();
+}
+
+/* ----------------------------------------------------------------------------
+   -- SystemCoreClockUpdate()
+   ---------------------------------------------------------------------------- */
+
+void SystemCoreClockUpdate (void) {
+
+    uint32_t freq;
+    uint32_t PLL2MainClock;
+    uint32_t PLL3MainClock;
+
+    /* Check if system pll is bypassed */
+    if((CCM_ANALOG->PLL_SYS & CCM_ANALOG_PLL_SYS_BYPASS_MASK) != 0U)
+    {
+        PLL2MainClock = CPU_XTAL_CLK_HZ;
+    }
+    else
+    {
+        PLL2MainClock = (CPU_XTAL_CLK_HZ * (((CCM_ANALOG->PLL_SYS & CCM_ANALOG_PLL_SYS_DIV_SELECT_MASK) != 0U) ? 22U : 20U));
+    }
+    PLL2MainClock += (uint32_t)(((uint64_t)CPU_XTAL_CLK_HZ * ((uint64_t)(CCM_ANALOG->PLL_SYS_NUM))) / ((uint64_t)(CCM_ANALOG->PLL_SYS_DENOM)));
+
+    /* Check if usb1 pll is bypassed */
+    if((CCM_ANALOG->PLL_USB1 & CCM_ANALOG_PLL_USB1_BYPASS_MASK) != 0U)
+    {
+        PLL3MainClock = CPU_XTAL_CLK_HZ;
+    }
+    else
+    {
+        PLL3MainClock = (CPU_XTAL_CLK_HZ * (((CCM_ANALOG->PLL_USB1 & CCM_ANALOG_PLL_USB1_DIV_SELECT_MASK) != 0U) ? 22U : 20U));
+    }
+
+    /* Periph_clk2_clk ---> Periph_clk */
+    if ((CCM->CBCDR & CCM_CBCDR_PERIPH_CLK_SEL_MASK) != 0U)
+    {
+        switch (CCM->CBCMR & CCM_CBCMR_PERIPH_CLK2_SEL_MASK)
+        {
+            /* Pll3_sw_clk ---> Periph_clk2_clk ---> Periph_clk ---> Core_clock */
+            case CCM_CBCMR_PERIPH_CLK2_SEL(0U):
+                freq = PLL3MainClock;
+                break;
+
+            /* Osc_clk ---> Periph_clk2_clk ---> Periph_clk ---> Core_clock */
+            case CCM_CBCMR_PERIPH_CLK2_SEL(1U):
+                freq = CPU_XTAL_CLK_HZ;
+                break;
+
+            /* Pll2_bypass_clk ---> Periph_clk2_clk ---> Periph_clk ---> Core_clock */
+            case CCM_CBCMR_PERIPH_CLK2_SEL(2U):
+                freq = CPU_XTAL_CLK_HZ;
+                break;
+
+            case CCM_CBCMR_PERIPH_CLK2_SEL(3U):
+            default:
+                freq = 0U;
+                break;
+        }
+
+        freq /= (((CCM->CBCDR & CCM_CBCDR_PERIPH_CLK2_PODF_MASK) >> CCM_CBCDR_PERIPH_CLK2_PODF_SHIFT) + 1U);
+    }
+    /* Pre_Periph_clk ---> Periph_clk */
+    else
+    {
+        switch (CCM->CBCMR & CCM_CBCMR_PRE_PERIPH_CLK_SEL_MASK)
+        {
+            /* PLL2 ---> Pre_Periph_clk ---> Periph_clk ---> Core_clock */
+            case CCM_CBCMR_PRE_PERIPH_CLK_SEL(0U):
+                freq = PLL2MainClock;
+                break;
+
+            /* PLL3 PFD3 ---> Pre_Periph_clk ---> Periph_clk ---> Core_clock */
+            case CCM_CBCMR_PRE_PERIPH_CLK_SEL(1U):
+                freq = PLL3MainClock / ((CCM_ANALOG->PFD_480 & CCM_ANALOG_PFD_480_PFD3_FRAC_MASK) >> CCM_ANALOG_PFD_480_PFD3_FRAC_SHIFT) * 18U;
+                break;
+
+            /* PLL2 PFD3 ---> Pre_Periph_clk ---> Periph_clk ---> Core_clock */
+            case CCM_CBCMR_PRE_PERIPH_CLK_SEL(2U):
+                freq = PLL2MainClock / ((CCM_ANALOG->PFD_528 & CCM_ANALOG_PFD_528_PFD3_FRAC_MASK) >> CCM_ANALOG_PFD_528_PFD3_FRAC_SHIFT) * 18U;
+                break;
+
+            /* PLL6 ---> Pre_Periph_clk ---> Periph_clk ---> Core_clock */
+            case CCM_CBCMR_PRE_PERIPH_CLK_SEL(3U):
+                freq = 500000000U / (((CCM->CACRR & CCM_CACRR_ARM_PODF_MASK) >> CCM_CACRR_ARM_PODF_SHIFT) + 1U);
+                break;
+
+            default:
+                freq = 0U;
+                break;
+        }
+    }
+
+    SystemCoreClock = (freq / (((CCM->CBCDR & CCM_CBCDR_AHB_PODF_MASK) >> CCM_CBCDR_AHB_PODF_SHIFT) + 1U));
+
+}
+
+/* ----------------------------------------------------------------------------
+   -- SystemInitHook()
+   ---------------------------------------------------------------------------- */
+
+__attribute__ ((weak)) void SystemInitHook (void) {
+  /* Void implementation of the weak function. */
+}