drivers: imx: Add new file interrupt-generic.c

Add the file for the platform without irqsteer. Now if the platform
have irqsteer we choose interrupt-irqsteer.c, if not then we choose
interrupt-generic.c

Signed-off-by: Zhang Peng <peng.zhang_8@nxp.com>

src/drivers/imx/CMakeLists.txt

@@ -14,4 +14,6 @@ endif()
 
 if(CONFIG_IMX_INTERRUPT_IRQSTEER)
 	add_local_sources(sof interrupt-irqsteer.c)
+elseif(CONFIG_IMX_INTERRUPT_GENERIC)
+	add_local_sources(sof interrupt-generic.c)
 endif()

src/drivers/imx/Kconfig

@@ -13,3 +13,10 @@ config IMX_INTERRUPT_IRQSTEER
 	help
 	  This has to be selected for i.MX NXP platform that have irqsteer.
 	  It enables NXP platforms-specific features.
+
+config IMX_INTERRUPT_GENERIC
+	bool
+	default n
+	help
+	  This has to be selected for i.MX NXP platform that do not have irqsteer.
+	  It enables NXP platforms-specific features.

src/drivers/imx/interrupt-generic.c

@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: BSD-3-Clause
+//
+// Copyright 2021 NXP
+//
+// Author: Peng Zhang <peng.zhang_8@nxp.com>
+
+#include <sof/common.h>
+#include <sof/drivers/interrupt.h>
+#include <sof/lib/cpu.h>
+#include <sof/lib/io.h>
+#include <sof/lib/memory.h>
+#include <sof/lib/uuid.h>
+#include <sof/list.h>
+#include <sof/spinlock.h>
+#include <errno.h>
+#include <inttypes.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+
+/* fa00558c-d653-4851-a03a-b21f125a9524 */
+DECLARE_SOF_UUID("generic-irq-imx", generic_irq_imx_uuid, 0xfa00558c, 0xd653, 0x4851,
+		 0xa0, 0x3a, 0xb2, 0x1f, 0x12, 0x5a, 0x95, 0x24);
+
+DECLARE_TR_CTX(noirq_i_tr, SOF_UUID(generic_irq_imx_uuid), LOG_LEVEL_INFO);
+
+/* this is needed because i.MX8 implementation assumes all boards have an irqsteer.
+ * Needs to be fixed.
+ */
+int irqstr_get_sof_int(int irqstr_int)
+{
+	return irqstr_int;
+}
+
+void platform_interrupt_init(void) {}
+
+void platform_interrupt_set(uint32_t irq)
+{
+	arch_interrupt_set(irq);
+}
+
+void platform_interrupt_clear(uint32_t irq, uint32_t mask)
+{
+	arch_interrupt_clear(irq);
+}
+
+uint32_t platform_interrupt_get_enabled(void)
+{
+	return 0;
+}
+
+void interrupt_mask(uint32_t irq, unsigned int cpu) {}
+
+void interrupt_unmask(uint32_t irq, unsigned int cpu) {}