Adding RP2350 SDK and target framework (#13988)

* Adding RP2350 SDK and target framework

* Spacing

* Removing board definitions

lib/main/pico-sdk/rp2_common/hardware_ticks/include/hardware/ticks.h

@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2024 Raspberry Pi (Trading) Ltd.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef _HARDWARE_TICKS_H
+#define _HARDWARE_TICKS_H
+
+/** \file hardware/tick.h
+ *  \defgroup hardware_ticks hardware_ticks
+ *
+ * \brief Hardware Tick API
+ * 
+ * \if rp2040_specific
+ * RP2040 only has one tick generator, and it is part of the watchdog hardware.
+ * \endif
+ * 
+ * \if rp2350_specific
+ * The RP2350 has a dedicated Tick block that is used to supply ticks to TIMER0, TIMER1, 
+ * RISC-V platform timer, Arm Cortex-M33 0 timer, Arm Cortex-M33 1 timer and the WATCHDOG block.
+ * \endif
+ */
+
+#include "pico.h"
+#if !PICO_RP2040
+#include "hardware/structs/ticks.h"
+#else
+#include "hardware/watchdog.h"
+/*! \brief Tick generator numbers on RP2040 (used as typedef \ref tick_gen_num_t)
+ *  \ingroup hardware_ticks
+ *
+ * RP2040 only has one tick generator, and it is part of the watchdog hardware
+ */
+typedef enum tick_gen_num_rp2040 {
+    TICK_WATCHDOG = 0,
+    TICK_COUNT
+} tick_gen_num_t;
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// PICO_CONFIG: PARAM_ASSERTIONS_ENABLED_HARDWARE_TICKS, Enable/disable assertions in the hardware_ticks module, type=bool, default=0, group=hardware_ticks
+#ifndef PARAM_ASSERTIONS_ENABLED_HARDWARE_TICKS
+#define PARAM_ASSERTIONS_ENABLED_HARDWARE_TICKS 0
+#endif
+
+/*! \brief Start a tick generator
+ *  \ingroup hardware_ticks
+ *
+ * \param tick The tick generator number
+ * \param cycles The number of clock cycles per tick
+ */
+void tick_start(tick_gen_num_t tick, uint cycles);
+
+
+/*! \brief Stop a tick generator
+ *  \ingroup hardware_ticks
+ *
+ * \param tick The tick generator number
+ */
+void tick_stop(tick_gen_num_t tick);
+
+/*! \brief Check if a tick genererator is currently running
+ *  \ingroup hardware_ticks
+ *
+ * \param tick The tick generator number
+ * \return true if the specific ticker is running.
+ */
+bool tick_is_running(tick_gen_num_t tick);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

lib/main/pico-sdk/rp2_common/hardware_ticks/ticks.c

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+/*
+ * Copyright (c) 2024 Raspberry Pi (Trading) Ltd.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include "hardware/ticks.h"
+
+void tick_start(tick_gen_num_t tick, uint cycles) {
+    valid_params_if(HARDWARE_TICKS, tick < TICK_COUNT);
+#if PICO_RP2040
+    ((void)tick);
+    cycles <<= WATCHDOG_TICK_CYCLES_LSB;
+    valid_params_if(HARDWARE_TICKS, cycles <= WATCHDOG_TICK_CYCLES_BITS);
+    // On RP2040, this also provides a tick reference to the timer and SysTick
+    watchdog_hw->tick = cycles | WATCHDOG_TICK_ENABLE_BITS;
+#else
+    cycles <<= TICKS_WATCHDOG_CYCLES_LSB;
+    valid_params_if(HARDWARE_TICKS, cycles <= TICKS_WATCHDOG_CYCLES_BITS);
+    // On later hardware, separate tick generators for every tick destination.
+    ticks_hw->ticks[tick].cycles = cycles;
+    ticks_hw->ticks[tick].ctrl = TICKS_WATCHDOG_CTRL_ENABLE_BITS;
+#endif
+}
+
+void tick_stop(tick_gen_num_t tick) {
+    valid_params_if(HARDWARE_TICKS, tick < TICK_COUNT);
+#if PICO_RP2040
+    ((void)tick);
+    hw_clear_bits(&watchdog_hw->tick, WATCHDOG_TICK_ENABLE_BITS);
+#else
+    hw_clear_bits(&ticks_hw->ticks[tick].ctrl, TICKS_WATCHDOG_CTRL_ENABLE_BITS);
+#endif
+}
+
+bool tick_is_running(tick_gen_num_t tick) {
+    valid_params_if(HARDWARE_TICKS, tick < TICK_COUNT);
+#if PICO_RP2040
+    ((void)tick);
+    return watchdog_hw->tick & WATCHDOG_TICK_ENABLE_BITS;
+#else
+    // On later hardware, separate tick generators for every tick destination.
+    return ticks_hw->ticks[tick].ctrl & TICKS_WATCHDOG_CTRL_RUNNING_BITS;
+#endif
+}