SNVS contains an RTC which allows Linux to deal correctly with time
Reviewed-by: Peter Maydell <[email protected]>
Signed-off-by: Gaurav Sharma <[email protected]>
---
docs/system/arm/imx8mm-evk.rst | 1 +
hw/arm/fsl-imx8mm.c | 10 ++++++++++
include/hw/arm/fsl-imx8mm.h | 2 ++
3 files changed, 13 insertions(+)
diff --git a/docs/system/arm/imx8mm-evk.rst b/docs/system/arm/imx8mm-evk.rst
index 09aa63240a..231dae6624 100644
--- a/docs/system/arm/imx8mm-evk.rst
+++ b/docs/system/arm/imx8mm-evk.rst
@@ -12,6 +12,7 @@ The ``imx8mm-evk`` machine implements the following devices:
* Up to 4 Cortex-A53 cores
* Generic Interrupt Controller (GICv3)
* 4 UARTs
+ * Secure Non-Volatile Storage (SNVS) including an RTC
* Clock Tree
Boot options
diff --git a/hw/arm/fsl-imx8mm.c b/hw/arm/fsl-imx8mm.c
index a3eddfe3f6..fb7df84cef 100644
--- a/hw/arm/fsl-imx8mm.c
+++ b/hw/arm/fsl-imx8mm.c
@@ -173,6 +173,8 @@ static void fsl_imx8mm_init(Object *obj)
object_initialize_child(obj, "analog", &s->analog, TYPE_IMX8MP_ANALOG);
+ object_initialize_child(obj, "snvs", &s->snvs, TYPE_IMX7_SNVS);
+
for (i = 0; i < FSL_IMX8MM_NUM_UARTS; i++) {
g_autofree char *name = g_strdup_printf("uart%d", i + 1);
object_initialize_child(obj, name, &s->uart[i], TYPE_IMX_SERIAL);
@@ -345,6 +347,13 @@ static void fsl_imx8mm_realize(DeviceState *dev, Error
**errp)
qdev_get_gpio_in(gicdev, serial_table[i].irq));
}
+ /* SNVS */
+ if (!sysbus_realize(SYS_BUS_DEVICE(&s->snvs), errp)) {
+ return;
+ }
+ sysbus_mmio_map(SYS_BUS_DEVICE(&s->snvs), 0,
+ fsl_imx8mm_memmap[FSL_IMX8MM_SNVS_HP].addr);
+
/* Unimplemented devices */
for (i = 0; i < ARRAY_SIZE(fsl_imx8mm_memmap); i++) {
switch (i) {
@@ -353,6 +362,7 @@ static void fsl_imx8mm_realize(DeviceState *dev, Error
**errp)
case FSL_IMX8MM_GIC_DIST:
case FSL_IMX8MM_GIC_REDIST:
case FSL_IMX8MM_RAM:
+ case FSL_IMX8MM_SNVS_HP:
case FSL_IMX8MM_UART1 ... FSL_IMX8MM_UART4:
/* device implemented and treated above */
break;
diff --git a/include/hw/arm/fsl-imx8mm.h b/include/hw/arm/fsl-imx8mm.h
index 03ab45d94e..9f4925eb87 100644
--- a/include/hw/arm/fsl-imx8mm.h
+++ b/include/hw/arm/fsl-imx8mm.h
@@ -13,6 +13,7 @@
#include "cpu.h"
#include "hw/char/imx_serial.h"
#include "hw/intc/arm_gicv3_common.h"
+#include "hw/misc/imx7_snvs.h"
#include "hw/misc/imx8mp_analog.h"
#include "hw/misc/imx8mp_ccm.h"
#include "qom/object.h"
@@ -37,6 +38,7 @@ struct FslImx8mmState {
GICv3State gic;
IMX8MPCCMState ccm;
IMX8MPAnalogState analog;
+ IMX7SNVSState snvs;
IMXSerialState uart[FSL_IMX8MM_NUM_UARTS];
};
--
2.34.1
