imx: move get_boot_device to common file

i.MX8MN/P/ULP supports ROM API, they have almost same get_boot_device
implementation, so move to a common file. And when support i.MX9,
no need to include the other function copy.

Since sys_proto.h is included in imx_romapi.c, there will be build
warning for i.MX8M because wdog_regs not defined, so include imx-regs.h
in i.MX8M sys_proro.h

Signed-off-by: Peng Fan <peng.fan@nxp.com>
diff --git a/arch/arm/include/asm/arch-imx8m/sys_proto.h b/arch/arm/include/asm/arch-imx8m/sys_proto.h
index f8854e7..55b46af 100644
--- a/arch/arm/include/asm/arch-imx8m/sys_proto.h
+++ b/arch/arm/include/asm/arch-imx8m/sys_proto.h
@@ -7,6 +7,7 @@
 #define __ARCH_NMX8M_SYS_PROTO_H
 
 #include <asm/mach-imx/sys_proto.h>
+#include <asm/arch/imx-regs.h>
 
 void set_wdog_reset(struct wdog_regs *wdog);
 void enable_tzc380(void);
diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
index 3cbcb15..fb46363 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -242,5 +242,6 @@
 obj-$(CONFIG_ARCH_IMX8) += imx8/
 obj-$(CONFIG_ARCH_IMXRT) += imxrt/
 
+obj-$(CONFIG_IMX8MN)$(CONFIG_IMX8MP)$(CONFIG_IMX8ULP) += imx_romapi.o
 obj-$(CONFIG_SPL_BOOTROM_SUPPORT) += spl_imx_romapi.o
 obj-$(CONFIG_IMX8_ROMAPI) += romapi.o
diff --git a/arch/arm/mach-imx/imx8m/soc.c b/arch/arm/mach-imx/imx8m/soc.c
index 81fee58..d115b25 100644
--- a/arch/arm/mach-imx/imx8m/soc.c
+++ b/arch/arm/mach-imx/imx8m/soc.c
@@ -599,50 +599,6 @@
 
 #if defined(CONFIG_IMX8MN) || defined(CONFIG_IMX8MP)
 struct rom_api *g_rom_api = (struct rom_api *)0x980;
-
-enum boot_device get_boot_device(void)
-{
-	int ret;
-	u32 boot;
-	u16 boot_type;
-	u8 boot_instance;
-	enum boot_device boot_dev = SD1_BOOT;
-
-	ret = rom_api_query_boot_infor(QUERY_BT_DEV, &boot);
-
-	if (ret != ROM_API_OKAY) {
-		puts("ROMAPI: failure at query_boot_info\n");
-		return -1;
-	}
-
-	boot_type = boot >> 16;
-	boot_instance = (boot >> 8) & 0xff;
-
-	switch (boot_type) {
-	case BT_DEV_TYPE_SD:
-		boot_dev = boot_instance + SD1_BOOT;
-		break;
-	case BT_DEV_TYPE_MMC:
-		boot_dev = boot_instance + MMC1_BOOT;
-		break;
-	case BT_DEV_TYPE_NAND:
-		boot_dev = NAND_BOOT;
-		break;
-	case BT_DEV_TYPE_FLEXSPINOR:
-		boot_dev = QSPI_BOOT;
-		break;
-	case BT_DEV_TYPE_SPI_NOR:
-		boot_dev = SPI_NOR_BOOT;
-		break;
-	case BT_DEV_TYPE_USB:
-		boot_dev = USB_BOOT;
-		break;
-	default:
-		break;
-	}
-
-	return boot_dev;
-}
 #endif
 
 #if defined(CONFIG_IMX8M)
diff --git a/arch/arm/mach-imx/imx8ulp/soc.c b/arch/arm/mach-imx/imx8ulp/soc.c
index c0f0df3..9545edc 100644
--- a/arch/arm/mach-imx/imx8ulp/soc.c
+++ b/arch/arm/mach-imx/imx8ulp/soc.c
@@ -34,47 +34,6 @@
 
 struct rom_api *g_rom_api = (struct rom_api *)0x1980;
 
-enum boot_device get_boot_device(void)
-{
-	int ret;
-	u32 boot;
-	u16 boot_type;
-	u8 boot_instance;
-	enum boot_device boot_dev = SD1_BOOT;
-
-	ret = rom_api_query_boot_infor(QUERY_BT_DEV, &boot);
-
-	if (ret != ROM_API_OKAY) {
-		puts("ROMAPI: failure at query_boot_info\n");
-		return -1;
-	}
-
-	boot_type = boot >> 16;
-	boot_instance = (boot >> 8) & 0xff;
-
-	switch (boot_type) {
-	case BT_DEV_TYPE_SD:
-		boot_dev = boot_instance + SD1_BOOT;
-		break;
-	case BT_DEV_TYPE_MMC:
-		boot_dev = boot_instance + MMC1_BOOT;
-		break;
-	case BT_DEV_TYPE_NAND:
-		boot_dev = NAND_BOOT;
-		break;
-	case BT_DEV_TYPE_FLEXSPINOR:
-		boot_dev = QSPI_BOOT;
-		break;
-	case BT_DEV_TYPE_USB:
-		boot_dev = USB_BOOT;
-		break;
-	default:
-		break;
-	}
-
-	return boot_dev;
-}
-
 bool is_usb_boot(void)
 {
 	return get_boot_device() == USB_BOOT;
diff --git a/arch/arm/mach-imx/romapi.c b/arch/arm/mach-imx/romapi.c
index 0e7b1d1..4b5f50c 100644
--- a/arch/arm/mach-imx/romapi.c
+++ b/arch/arm/mach-imx/romapi.c
@@ -2,6 +2,7 @@
 
 #include <asm/global_data.h>
 #include <asm/arch/sys_proto.h>
+#include <asm/mach-imx/boot_mode.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -28,3 +29,49 @@
 
 	return ret;
 }
+
+extern struct rom_api *g_rom_api;
+
+enum boot_device get_boot_device(void)
+{
+	volatile gd_t *pgd = gd;
+	int ret;
+	u32 boot;
+	u16 boot_type;
+	u8 boot_instance;
+	enum boot_device boot_dev = SD1_BOOT;
+
+	ret = g_rom_api->query_boot_infor(QUERY_BT_DEV, &boot,
+					  ((uintptr_t)&boot) ^ QUERY_BT_DEV);
+	set_gd(pgd);
+
+	if (ret != ROM_API_OKAY) {
+		puts("ROMAPI: failure at query_boot_info\n");
+		return -1;
+	}
+
+	boot_type = boot >> 16;
+	boot_instance = (boot >> 8) & 0xff;
+
+	switch (boot_type) {
+	case BT_DEV_TYPE_SD:
+		boot_dev = boot_instance + SD1_BOOT;
+		break;
+	case BT_DEV_TYPE_MMC:
+		boot_dev = boot_instance + MMC1_BOOT;
+		break;
+	case BT_DEV_TYPE_NAND:
+		boot_dev = NAND_BOOT;
+		break;
+	case BT_DEV_TYPE_FLEXSPINOR:
+		boot_dev = QSPI_BOOT;
+		break;
+	case BT_DEV_TYPE_USB:
+		boot_dev = USB_BOOT;
+		break;
+	default:
+		break;
+	}
+
+	return boot_dev;
+}