[PATCH V4 18/49] imx: imx9: support romapi

[Peng Fan (OSS)]

From: Peng Fan <peng.fan at nxp.com>

i.MX9 shares same ROM API with i.MX8ULP, so make the i.MX8ULP the function
prototype common and usable by i.MX9.

Also include mmc env functions that use ROM API.

Signed-off-by: Peng Fan <peng.fan at nxp.com>
---
 arch/arm/include/asm/arch-imx8ulp/sys_proto.h |  4 --
 arch/arm/include/asm/mach-imx/sys_proto.h     |  4 ++
 arch/arm/mach-imx/imx9/soc.c                  | 37 +++++++++++++++++++
 3 files changed, 41 insertions(+), 4 deletions(-)

diff --git a/arch/arm/include/asm/arch-imx8ulp/sys_proto.h b/arch/arm/include/asm/arch-imx8ulp/sys_proto.h
index 05859dfc2aa..a7869fbb573 100644
--- a/arch/arm/include/asm/arch-imx8ulp/sys_proto.h
+++ b/arch/arm/include/asm/arch-imx8ulp/sys_proto.h
@@ -8,10 +8,6 @@
 
 #include <asm/mach-imx/sys_proto.h>
 
-extern unsigned long rom_pointer[];
-
-ulong spl_romapi_raw_seekable_read(u32 offset, u32 size, void *buf);
-ulong spl_romapi_get_uboot_base(u32 image_offset, u32 rom_bt_dev);
 enum bt_mode get_boot_mode(void);
 int xrdc_config_pdac(u32 bridge, u32 index, u32 dom, u32 perm);
 int xrdc_config_pdac_openacc(u32 bridge, u32 index);
diff --git a/arch/arm/include/asm/mach-imx/sys_proto.h b/arch/arm/include/asm/mach-imx/sys_proto.h
index 05532ebea89..17c5f44b208 100644
--- a/arch/arm/include/asm/mach-imx/sys_proto.h
+++ b/arch/arm/include/asm/mach-imx/sys_proto.h
@@ -180,6 +180,10 @@ enum boot_dev_type_e {
 #define ROM_API_OKAY		0xF0
 
 extern struct rom_api *g_rom_api;
+extern unsigned long rom_pointer[];
+
+ulong spl_romapi_raw_seekable_read(u32 offset, u32 size, void *buf);
+ulong spl_romapi_get_uboot_base(u32 image_offset, u32 rom_bt_dev);
 
 /* For i.MX ULP */
 #define BT0CFG_LPBOOT_MASK	0x1
diff --git a/arch/arm/mach-imx/imx9/soc.c b/arch/arm/mach-imx/imx9/soc.c
index 8b620832b5d..9ea2d51495b 100644
--- a/arch/arm/mach-imx/imx9/soc.c
+++ b/arch/arm/mach-imx/imx9/soc.c
@@ -29,6 +29,43 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
+struct rom_api *g_rom_api = (struct rom_api *)0x1980;
+
+#ifdef CONFIG_ENV_IS_IN_MMC
+__weak int board_mmc_get_env_dev(int devno)
+{
+	return devno; }
+
+int mmc_get_env_dev(void)
+{
+	volatile gd_t *pgd = gd;
+	int ret;
+	u32 boot;
+	u16 boot_type;
+	u8 boot_instance;
+
+	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 CONFIG_SYS_MMC_ENV_DEV;
+	}
+
+	boot_type = boot >> 16;
+	boot_instance = (boot >> 8) & 0xff;
+
+	debug("boot_type %d, instance %d\n", boot_type, boot_instance);
+
+	/* If not boot from sd/mmc, use default value */
+	if (boot_type != BOOT_TYPE_SD && boot_type != BOOT_TYPE_MMC)
+		return env_get_ulong("mmcdev", 10, CONFIG_SYS_MMC_ENV_DEV);
+
+	return board_mmc_get_env_dev(boot_instance);
+}
+#endif
+
 u32 get_cpu_rev(void)
 {
 	return (MXC_CPU_IMX93 << 12) | CHIP_REV_1_0;
-- 
2.36.0