[nrf noup] Bluetooth: Controller: nrf54hx: Initial GRTC support

Added initial implementation for nrf54hx GRTC use for Radio.

Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>

Author: cvinayak

subsys/bluetooth/controller/Kconfig.ll_sw_split

@@ -938,7 +938,7 @@ config BT_CTLR_RX_PDU_META
 
 config BT_CTLR_NRF_GRTC
 	bool "Use nRF GRTC peripheral"
-	depends on SOC_COMPATIBLE_NRF54LX
+	depends on SOC_COMPATIBLE_NRF54LX || SOC_SERIES_NRF54HX
 	select BT_TICKER_CNTR_FREE_RUNNING
 	default y
 	help

subsys/bluetooth/controller/ll_sw/nordic/hal/nrf5/cntr.c

@@ -60,12 +60,18 @@ void cntr_init(void)
 	 *        with ability to select/set IRQ group.
 	 *        Shared interrupts is an option? It may add ISR latencies?
 	 */
+#if defined(CONFIG_SOC_COMPATIBLE_NRF54LX)
 	NRF_GRTC->INTENSET1 = HAL_CNTR_GRTC_INTENSET_COMPARE_TICKER_Msk;
 	if (IS_ENABLED(CONFIG_SOC_SERIES_BSIM_NRF54LX)) {
 		extern void nhw_GRTC_regw_sideeffects_INTENSET(uint32_t inst, uint32_t n);
 
 		nhw_GRTC_regw_sideeffects_INTENSET(0, 1);
 	}
+#elif defined(CONFIG_SOC_SERIES_NRF54HX)
+	NRF_GRTC->INTENSET6 = HAL_CNTR_GRTC_INTENSET_COMPARE_TICKER_Msk;
+#else
+#error "Unknown SoC."
+#endif
 
 #if defined(CONFIG_BT_CTLR_NRF_GRTC_START)
 	NRF_GRTC->MODE = ((GRTC_MODE_SYSCOUNTEREN_Enabled <<

subsys/bluetooth/controller/ll_sw/nordic/hal/nrf5/radio/radio_nrf5.h

@@ -44,6 +44,7 @@
 #include "radio_nrf54lx.h"
 #elif defined(CONFIG_SOC_SERIES_NRF54HX)
 #include <hal/nrf_lrcconf.h>
+#include <hal/nrf_ipct.h>
 #include "radio_nrf54hx.h"
 #elif defined(CONFIG_BOARD_NRF52_BSIM)
 #include "radio_sim_nrf52.h"

subsys/bluetooth/controller/ll_sw/nordic/hal/nrf5/radio/radio_nrf5_dppi.h

@@ -108,6 +108,7 @@ static inline void hal_event_timer_start_ppi_config(void)
 	nrf_grtc_publish_set(NRF_GRTC, HAL_CNTR_GRTC_EVENT_COMPARE_RADIO,
 			     HAL_EVENT_TIMER_START_PPI);
 
+#if defined(CONFIG_SOC_COMPATIBLE_NRF54LX)
 	/* Setup PPIB receive publish */
 	nrf_ppib_publish_set(NRF_PPIB11, HAL_PPIB_RECEIVE_EVENT_TIMER_START_PPI,
 			     HAL_EVENT_TIMER_START_PPI);
@@ -117,8 +118,26 @@ static inline void hal_event_timer_start_ppi_config(void)
 			       HAL_EVENT_TIMER_START_PPI);
 
 	/* Enable same DPPI in Peripheral domain */
-	nrf_dppi_channels_enable(NRF_DPPIC20,
-				 BIT(HAL_EVENT_TIMER_START_PPI));
+	nrf_dppi_channels_enable(NRF_DPPIC20, BIT(HAL_EVENT_TIMER_START_PPI));
+
+#elif defined(CONFIG_SOC_SERIES_NRF54HX)
+	/* Setup IPCT receive publish in radio domain */
+	nrf_ipct_publish_set(NRF_IPCT, HAL_IPCT_RECEIVE_EVENT_TIMER_START_PPI,
+			       HAL_EVENT_TIMER_START_PPI);
+
+	/* Setup IPCT send subscribe in main domain */
+	nrf_ipct_subscribe_set(NRF_IPCT130, HAL_IPCT_SEND_EVENT_TIMER_START_PPI,
+			       HAL_EVENT_TIMER_START_PPI);
+
+	nrf_ipct_shorts_enable(NRF_IPCT, IPCT_SHORTS_RECEIVE0_FLUSH0_Msk);
+
+	/* Enable same DPPI in main domain */
+	nrf_dppi_channels_enable(NRF_DPPIC130, BIT(HAL_EVENT_TIMER_START_PPI));
+
+	/* Enable same DPPI in global domain */
+	nrf_dppi_channels_enable(NRF_DPPIC132, BIT(HAL_EVENT_TIMER_START_PPI));
+#else
+#endif
 
 #else /* !CONFIG_BT_CTLR_NRF_GRTC */
 	nrf_rtc_publish_set(NRF_RTC, NRF_RTC_EVENT_COMPARE_2, HAL_EVENT_TIMER_START_PPI);

subsys/bluetooth/controller/ll_sw/nordic/hal/nrf5/radio/radio_nrf5_dppi_resources.h

@@ -36,11 +36,15 @@
  * Start event timer on RTC tick:
  * wire the RTC0 EVENTS_COMPARE[2] event to EVENT_TIMER  TASKS_START task.
  */
-#define HAL_EVENT_TIMER_START_PPI 8
+#define HAL_EVENT_TIMER_START_PPI 0
 #define HAL_PPIB_SEND_EVENT_TIMER_START_PPI \
 	_CONCAT(NRF_PPIB_TASK_SEND_, HAL_EVENT_TIMER_START_PPI)
 #define HAL_PPIB_RECEIVE_EVENT_TIMER_START_PPI \
 	_CONCAT(NRF_PPIB_EVENT_RECEIVE_, HAL_EVENT_TIMER_START_PPI)
+#define HAL_IPCT_SEND_EVENT_TIMER_START_PPI \
+	_CONCAT(NRF_IPCT_TASK_SEND_, HAL_EVENT_TIMER_START_PPI)
+#define HAL_IPCT_RECEIVE_EVENT_TIMER_START_PPI \
+	_CONCAT(NRF_IPCT_EVENT_RECEIVE_, HAL_EVENT_TIMER_START_PPI)
 
 /*******************************************************************************
  * Capture event timer on Radio ready:

subsys/bluetooth/controller/ll_sw/nordic/hal/nrf5/swi.h

@@ -67,8 +67,8 @@
 #define HAL_SWI_RADIO_IRQ  SWI2_IRQn
 
 #if defined(CONFIG_BT_CTLR_NRF_GRTC)
-#define HAL_SWI_WORKER_IRQ GRTC_1_IRQn
-#define HAL_RTC_IRQn       GRTC_1_IRQn
+#define HAL_SWI_WORKER_IRQ GRTC_2_IRQn
+#define HAL_RTC_IRQn       GRTC_2_IRQn
 #else /* !CONFIG_BT_CTLR_NRF_GRTC */
 #define HAL_SWI_WORKER_IRQ RTC_IRQn
 #define HAL_RTC_IRQn       RTC_IRQn