nxp: adding gic apis for nxp soc

GIC api used by NXP SoC is based on:
- arm provided drivers: /drivers/arm/gic
Signed-off-by: Pankaj Gupta <pankaj.gupta@nxp.com>
Change-Id: If3d470256e5bd078614f191e56062c4fbd97f8bd

drivers/nxp/gic/gic.mk

+# Copyright 2021 NXP
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+#
+#------------------------------------------------------------------------------
+#
+# Select the GIC files
+#
+# -----------------------------------------------------------------------------
+
+ifeq (${ADD_GIC},)
+ADD_GIC			:= 1
+ifeq ($(GIC), GIC400)
+include drivers/arm/gic/v2/gicv2.mk
+GIC_SOURCES		+=	${GICV2_SOURCES}
+GIC_SOURCES		+=	${PLAT_DRIVERS_PATH}/gic/ls_gicv2.c	\
+				plat/common/plat_gicv2.c
+
+PLAT_INCLUDES		+=	-I${PLAT_DRIVERS_PATH}/gic/include/gicv2
+else
+ifeq ($(GIC), GIC500)
+include drivers/arm/gic/v3/gicv3.mk
+GIC_SOURCES		+=	${GICV3_SOURCES}
+GIC_SOURCES		+=	${PLAT_DRIVERS_PATH}/gic/ls_gicv3.c	\
+				plat/common/plat_gicv3.c
+
+PLAT_INCLUDES		+=	-I${PLAT_DRIVERS_PATH}/gic/include/gicv3
+else
+    $(error -> GIC type not set!)
+endif
+endif
+
+ifeq (${BL_COMM_GIC_NEEDED},yes)
+BL_COMMON_SOURCES	+= ${GIC_SOURCES}
+else
+ifeq (${BL2_GIC_NEEDED},yes)
+BL2_SOURCES		+= ${GIC_SOURCES}
+endif
+ifeq (${BL31_GIC_NEEDED},yes)
+BL31_SOURCES		+= ${GIC_SOURCES}
+endif
+endif
+endif
+
+# -----------------------------------------------------------------------------

drivers/nxp/gic/include/gicv2/plat_gic.h

+/*
+ * Copyright 2021 NXP
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ */
+
+#ifndef PLAT_GICV2_H
+#define PLAT_GICV2_H
+
+#include <drivers/arm/gicv2.h>
+
+ /* register offsets */
+#define GICD_CTLR_OFFSET          0x0
+#define GICD_CPENDSGIR3_OFFSET    0xF1C
+#define GICD_SPENDSGIR3_OFFSET    0xF2C
+#define GICD_SGIR_OFFSET          0xF00
+#define GICD_IGROUPR0_OFFSET      0x080
+#define GICD_TYPER_OFFSET         0x0004
+#define GICD_ISENABLER0_OFFSET    0x0100
+#define GICD_ICENABLER0_OFFSET    0x0180
+#define GICD_IPRIORITYR3_OFFSET   0x040C
+#define GICD_ISENABLERn_OFFSET    0x0100
+#define GICD_ISACTIVER0_OFFSET    0x300
+
+#define GICC_CTLR_OFFSET          0x0
+#define GICC_PMR_OFFSET           0x0004
+#define GICC_IAR_OFFSET           0x000C
+#define GICC_DIR_OFFSET           0x1000
+#define GICC_EOIR_OFFSET          0x0010
+
+ /* bitfield masks */
+#define GICC_CTLR_EN_GRP0           0x1
+#define GICC_CTLR_EN_GRP1           0x2
+#define GICC_CTLR_EOImodeS_MASK     0x200
+#define GICC_CTLR_DIS_BYPASS        0x60
+#define GICC_CTLR_CBPR_MASK         0x10
+#define GICC_CTLR_FIQ_EN_MASK       0x8
+#define GICC_CTLR_ACKCTL_MASK       0x4
+#define GICC_PMR_FILTER             0xFF
+
+#define GICD_CTLR_EN_GRP0           0x1
+#define GICD_CTLR_EN_GRP1           0x2
+#define GICD_IGROUP0_SGI15          0x8000
+#define GICD_ISENABLE0_SGI15        0x8000
+#define GICD_ICENABLE0_SGI15        0x8000
+#define GICD_ISACTIVER0_SGI15       0x8000
+#define GICD_CPENDSGIR_CLR_MASK     0xFF000000
+#define GICD_IPRIORITY_SGI15_MASK   0xFF000000
+#define GICD_SPENDSGIR3_SGI15_MASK  0xFF000000
+#define GICD_SPENDSGIR3_SGI15_OFFSET  0x18
+
+#ifndef __ASSEMBLER__
+
+/* GIC common API's */
+void plat_ls_gic_driver_init(const uintptr_t nxp_gicd_addr,
+			     const uintptr_t nxp_gicc_addr,
+			     uint8_t plat_core_count,
+			     interrupt_prop_t *ls_interrupt_props,
+			     uint8_t ls_interrupt_prop_count,
+			     uint32_t *target_mask_array);
+void plat_ls_gic_init(void);
+void plat_ls_gic_cpuif_enable(void);
+void plat_ls_gic_cpuif_disable(void);
+void plat_ls_gic_redistif_on(void);
+void plat_ls_gic_redistif_off(void);
+void plat_gic_pcpu_init(void);
+/* GIC utility functions */
+void get_gic_offset(uint32_t *gicc_base, uint32_t *gicd_base);
+#endif
+
+#endif /* PLAT_GICV2_H */

drivers/nxp/gic/include/gicv3/plat_gic.h

+/*
+ * Copyright 2021 NXP
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ */
+
+#ifndef PLAT_GICV3_H
+#define PLAT_GICV3_H
+
+#include <drivers/arm/gicv3.h>
+
+ /* offset between redistributors */
+#define GIC_RD_OFFSET       0x00020000
+ /* offset between SGI's */
+#define GIC_SGI_OFFSET      0x00020000
+ /* offset from rd base to sgi base */
+#define GIC_RD_2_SGI_OFFSET 0x00010000
+
+ /* register offsets */
+#define GICD_CTLR_OFFSET        0x0
+#define GICD_CLR_SPI_SR         0x58
+#define GICD_IGROUPR_2          0x88
+#define GICD_ISENABLER_2        0x108
+#define GICD_ICENABLER_2        0x188
+#define GICD_ICPENDR_2          0x288
+#define GICD_ICACTIVER_2        0x388
+#define GICD_IPRIORITYR_22      0x458
+#define GICD_ICFGR_5            0xC14
+#define GICD_IGRPMODR_2         0xD08
+
+#define GICD_IROUTER60_OFFSET   0x61e0
+#define GICD_IROUTER76_OFFSET   0x6260
+#define GICD_IROUTER89_OFFSET   0x62C8
+#define GICD_IROUTER112_OFFSET  0x6380
+#define GICD_IROUTER113_OFFSET  0x6388
+
+#define GICR_ICENABLER0_OFFSET  0x180
+#define GICR_CTLR_OFFSET        0x0
+#define GICR_IGROUPR0_OFFSET    0x80
+#define GICR_IGRPMODR0_OFFSET   0xD00
+#define GICR_IPRIORITYR3_OFFSET 0x40C
+#define GICR_ICPENDR0_OFFSET    0x280
+#define GICR_ISENABLER0_OFFSET  0x100
+#define GICR_TYPER_OFFSET       0x8
+#define GICR_WAKER_OFFSET       0x14
+#define GICR_ICACTIVER0_OFFSET  0x380
+#define GICR_ICFGR0_OFFSET      0xC00
+
+ /* bitfield masks */
+#define GICD_CTLR_EN_GRP_MASK   0x7
+#define GICD_CTLR_EN_GRP_1NS    0x2
+#define GICD_CTLR_EN_GRP_1S     0x4
+#define GICD_CTLR_EN_GRP_0      0x1
+#define GICD_CTLR_ARE_S_MASK    0x10
+#define GICD_CTLR_RWP           0x80000000
+
+#define GICR_ICENABLER0_SGI15   0x00008000
+#define GICR_CTLR_RWP           0x8
+#define GICR_CTLR_DPG0_MASK     0x2000000
+#define GICR_IGROUPR0_SGI15     0x00008000
+#define GICR_IGRPMODR0_SGI15    0x00008000
+#define GICR_ISENABLER0_SGI15   0x00008000
+#define GICR_IPRIORITYR3_SGI15_MASK  0xFF000000
+#define GICR_ICPENDR0_SGI15     0x8000
+
+#define GIC_SPI_89_MASK         0x02000000
+#define GIC_SPI89_PRIORITY_MASK 0xFF00
+#define GIC_IRM_SPI89           0x80000000
+
+#define GICD_IROUTER_VALUE      0x100
+#define GICR_WAKER_SLEEP_BIT    0x2
+#define GICR_WAKER_ASLEEP       (1 << 2 | 1 << 1)
+
+#define ICC_SRE_EL3_SRE          0x1
+#define ICC_IGRPEN0_EL1_EN       0x1
+#define ICC_CTLR_EL3_CBPR_EL1S   0x1
+#define ICC_CTLR_EL3_RM          0x20
+#define ICC_CTLR_EL3_EOIMODE_EL3 0x4
+#define ICC_CTLR_EL3_PMHE        0x40
+#define ICC_PMR_EL1_P_FILTER     0xFF
+#define ICC_IAR0_EL1_SGI15       0xF
+#define ICC_SGI0R_EL1_INTID      0x0F000000
+#define ICC_IAR0_INTID_SPI_89    0x59
+
+#define  ICC_IGRPEN1_EL1 S3_0_C12_C12_7
+#define  ICC_PMR_EL1     S3_0_C4_C6_0
+#define  ICC_SRE_EL3     S3_6_C12_C12_5
+#define  ICC_CTLR_EL3    S3_6_C12_C12_4
+#define  ICC_SRE_EL2     S3_4_C12_C9_5
+#define  ICC_CTLR_EL1    S3_0_C12_C12_4
+
+#ifndef __ASSEMBLER__
+
+/* GIC common API's */
+typedef unsigned int (*my_core_pos_fn)(void);
+
+void plat_ls_gic_driver_init(const uintptr_t nxp_gicd_addr,
+			     const uintptr_t nxp_gicr_addr,
+			     uint8_t plat_core_count,
+			     interrupt_prop_t *ls_interrupt_props,
+			     uint8_t ls_interrupt_prop_count,
+			     uintptr_t *target_mask_array,
+			     mpidr_hash_fn mpidr_to_core_pos);
+//void plat_ls_gic_driver_init(void);
+void plat_ls_gic_init(void);
+void plat_ls_gic_cpuif_enable(void);
+void plat_ls_gic_cpuif_disable(void);
+void plat_ls_gic_redistif_on(void);
+void plat_ls_gic_redistif_off(void);
+void plat_gic_pcpu_init(void);
+#endif
+
+#endif /* PLAT_GICV3_H */

drivers/nxp/gic/ls_gicv2.c

+/*
+ * Copyright 2021 NXP
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ */
+
+#include <gicv2.h>
+#include <plat_gic.h>
+
+
+/*
+ * NXP common helper to initialize the GICv3 only driver.
+ */
+void plat_ls_gic_driver_init(uintptr_t nxp_gicd_addr,
+			     uintptr_t nxp_gicc_addr,
+			     uint8_t plat_core_count,
+			     interrupt_prop_t *ls_interrupt_props,
+			     uint8_t ls_interrupt_prop_count,
+			     uint32_t *target_mask_array)
+{
+	static struct gicv2_driver_data ls_gic_data;
+
+	ls_gic_data.gicd_base = nxp_gicd_addr;
+	ls_gic_data.gicc_base = nxp_gicc_addr;
+	ls_gic_data.target_masks = target_mask_array;
+	ls_gic_data.target_masks_num = plat_core_count;
+	ls_gic_data.interrupt_props = ls_interrupt_props;
+	ls_gic_data.interrupt_props_num = ls_interrupt_prop_count;
+
+	gicv2_driver_init(&ls_gic_data);
+}
+
+void plat_ls_gic_init(void)
+{
+	gicv2_distif_init();
+	gicv2_pcpu_distif_init();
+	gicv2_cpuif_enable();
+}
+
+/******************************************************************************
+ * ARM common helper to enable the GICv2 CPU interface
+ *****************************************************************************/
+void plat_ls_gic_cpuif_enable(void)
+{
+	gicv2_cpuif_enable();
+}
+
+/******************************************************************************
+ * ARM common helper to disable the GICv2 CPU interface
+ *****************************************************************************/
+void plat_ls_gic_cpuif_disable(void)
+{
+	gicv2_cpuif_disable();
+}
+
+/******************************************************************************
+ * NXP common helper to initialize GICv2 per cpu
+ *****************************************************************************/
+void plat_gic_pcpu_init(void)
+{
+	gicv2_pcpu_distif_init();
+	gicv2_cpuif_enable();
+}
+
+/******************************************************************************
+ * Stubs for Redistributor power management. Although GICv2 doesn't have
+ * Redistributor interface, these are provided for the sake of uniform GIC API
+ *****************************************************************************/
+void plat_ls_gic_redistif_on(void)
+{
+}
+
+void plat_ls_gic_redistif_off(void)
+{
+}

drivers/nxp/gic/ls_gicv3.c

+/*
+ * Copyright 2021 NXP
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ */
+
+#include <drivers/arm/gicv3.h>
+#include <plat_gic.h>
+#include <plat/common/platform.h>
+
+/*
+ * NXP common helper to initialize the GICv3 only driver.
+ */
+void plat_ls_gic_driver_init(uintptr_t nxp_gicd_addr,
+			     uintptr_t nxp_gicr_addr,
+			     uint8_t plat_core_count,
+			     interrupt_prop_t *ls_interrupt_props,
+			     uint8_t ls_interrupt_prop_count,
+			     uintptr_t *target_mask_array,
+			     mpidr_hash_fn mpidr_to_core_pos)
+{
+	static struct gicv3_driver_data ls_gic_data;
+
+	ls_gic_data.gicd_base = nxp_gicd_addr;
+	ls_gic_data.gicr_base = nxp_gicr_addr;
+	ls_gic_data.interrupt_props = ls_interrupt_props;
+	ls_gic_data.interrupt_props_num = ls_interrupt_prop_count;
+	ls_gic_data.rdistif_num = plat_core_count;
+	ls_gic_data.rdistif_base_addrs = target_mask_array;
+	ls_gic_data.mpidr_to_core_pos = mpidr_to_core_pos;
+
+	gicv3_driver_init(&ls_gic_data);
+}
+
+void plat_ls_gic_init(void)
+{
+	gicv3_distif_init();
+	gicv3_rdistif_init(plat_my_core_pos());
+	gicv3_cpuif_enable(plat_my_core_pos());
+}
+
+/*
+ * NXP common helper to enable the GICv3 CPU interface
+ */
+void plat_ls_gic_cpuif_enable(void)
+{
+	gicv3_cpuif_enable(plat_my_core_pos());
+}
+
+/*
+ * NXP common helper to disable the GICv3 CPU interface
+ */
+void plat_ls_gic_cpuif_disable(void)
+{
+	gicv3_cpuif_disable(plat_my_core_pos());
+}
+
+/*
+ * NXP common helper to initialize the per cpu distributor interface in GICv3
+ */
+void plat_gic_pcpu_init(void)
+{
+	gicv3_rdistif_init(plat_my_core_pos());
+	gicv3_cpuif_enable(plat_my_core_pos());
+}
+
+/*
+ * Stubs for Redistributor power management. Although GICv3 doesn't have
+ * Redistributor interface, these are provided for the sake of uniform GIC API
+ */
+void plat_ls_gic_redistif_on(void)
+{
+}
+
+void plat_ls_gic_redistif_off(void)
+{
+}