[PATCH 07/10] imx: imx8qm/qxp: check whether m4 partition booted

[Peng Fan]

Add code to check m4 partition booted or not, we will use this
to runtime set device tree file that passed to Linux Kernel.

Signed-off-by: Peng Fan <peng.fan at nxp.com>
---
 arch/arm/include/asm/arch-imx8/sys_proto.h |  1 +
 arch/arm/mach-imx/imx8/cpu.c               | 30 ++++++++++++++++++++++++++++++
 board/freescale/imx8qxp_mek/spl.c          |  2 +-
 3 files changed, 32 insertions(+), 1 deletion(-)

diff --git a/arch/arm/include/asm/arch-imx8/sys_proto.h b/arch/arm/include/asm/arch-imx8/sys_proto.h
index 2a08ef939d..6f1fc8f999 100644
--- a/arch/arm/include/asm/arch-imx8/sys_proto.h
+++ b/arch/arm/include/asm/arch-imx8/sys_proto.h
@@ -29,3 +29,4 @@ int sc_pm_setup_uart(sc_rsrc_t uart_rsrc, sc_pm_clock_rate_t clk_rate);
 int imx8_power_domain_lookup_name(const char *name,
 				  struct power_domain *power_domain);
 void imx8_power_off_pd_devices(const char *permanent_on_devices[], int size);
+bool m4_parts_booted(void);
diff --git a/arch/arm/mach-imx/imx8/cpu.c b/arch/arm/mach-imx/imx8/cpu.c
index 103a29746a..6d7b17b464 100644
--- a/arch/arm/mach-imx/imx8/cpu.c
+++ b/arch/arm/mach-imx/imx8/cpu.c
@@ -585,3 +585,33 @@ void board_boot_order(u32 *spl_boot_list)
 			spl_boot_list[0] = BOOT_DEVICE_NOR;
 	}
 }
+
+bool m4_parts_booted(void)
+{
+	sc_rm_pt_t m4_parts[2];
+	int err;
+
+	err = sc_rm_get_resource_owner(-1, SC_R_M4_0_PID0, &m4_parts[0]);
+	if (err) {
+		printf("%s get resource [%d] owner error: %d\n", __func__,
+		       SC_R_M4_0_PID0, err);
+		return false;
+	}
+
+	if (sc_pm_is_partition_started(-1, m4_parts[0]))
+		return true;
+
+	if (is_imx8qm()) {
+		err = sc_rm_get_resource_owner(-1, SC_R_M4_1_PID0, &m4_parts[1]);
+		if (err) {
+			printf("%s get resource [%d] owner error: %d\n",
+			       __func__, SC_R_M4_1_PID0, err);
+			return false;
+		}
+
+		if (sc_pm_is_partition_started(-1, m4_parts[1]))
+			return true;
+	}
+
+	return false;
+}
diff --git a/board/freescale/imx8qxp_mek/spl.c b/board/freescale/imx8qxp_mek/spl.c
index 32b61095b0..eefee64ab1 100644
--- a/board/freescale/imx8qxp_mek/spl.c
+++ b/board/freescale/imx8qxp_mek/spl.c
@@ -58,7 +58,7 @@ void spl_board_init(void)
 
 void spl_board_prepare_for_boot(void)
 {
-	imx_power_off_pd_devices(NULL, 0);
+	imx8_power_off_pd_devices(NULL, 0);
 }
 
 #ifdef CONFIG_SPL_LOAD_FIT
-- 
2.16.4