MLK-15957 imx8m: evk: default enable tzc380

Default enable TZC380.
Signed-off-by: Peng Fan <peng.fan@nxp.com>

arch/arm/cpu/armv8/imx8m/soc.c

@@ -39,6 +39,18 @@ int timer_init(void)
 	return 0;
 }
 
+void enable_tzc380(void)
+{
+	u32 val;
+
+	/* Enable TZASC and lock setting */
+	val = readl(IOMUXC_GPR10);
+	val |= GPR_TZASC_EN;
+	writel(val, IOMUXC_GPR10);
+	val |= GPR_TZASC_EN_LOCK;
+	writel(val, IOMUXC_GPR10);
+}
+
 void set_wdog_reset(struct wdog_regs *wdog)
 {
 	u32 reg = readw(&wdog->wcr);

arch/arm/include/asm/arch-imx8m/imx-regs.h

@@ -127,6 +127,11 @@
 #define IOMUXC_GPR6		(IOMUXC_GPR_BASE_ADDR + 0x18)
 #define IOMUXC_GPR7		(IOMUXC_GPR_BASE_ADDR + 0x1c)
 #define IOMUXC_GPR8		(IOMUXC_GPR_BASE_ADDR + 0x20)
+#define IOMUXC_GPR9		(IOMUXC_GPR_BASE_ADDR + 0x24)
+#define IOMUXC_GPR10		(IOMUXC_GPR_BASE_ADDR + 0x28)
+
+#define GPR_TZASC_EN		(1 << 0)
+#define GPR_TZASC_EN_LOCK	(1 << 16)
 
 #define SCTR_BASE_ADDR	0x306C0000
 #define CNTCR_OFF	0x00

arch/arm/include/asm/arch-imx8m/sys_proto.h

@@ -7,3 +7,4 @@
 #include <asm/imx-common/sys_proto.h>
 
 void set_wdog_reset(struct wdog_regs *wdog);
+void enable_tzc380(void);

board/freescale/imx8mq_evk/spl.c

@@ -11,6 +11,7 @@
 #include <asm/io.h>
 #include <asm/imx-common/iomux-v3.h>
 #include <asm/arch/ddr_memory_map.h>
+#include <asm/arch/sys_proto.h>
 #include <power/pmic.h>
 #include <power/pfuze100_pmic.h>
 #include "../common/pfuze.h"
@@ -29,6 +30,8 @@ extern struct i2c_pads_info i2c_pad_info1;
 
 void spl_board_init(void)
 {
+	enable_tzc380();
+
 	/* Adjust pmic voltage to 1.0V for 800M */
 	setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);