[U-Boot] [PATCH 2/5] arm: k3: Add a wrapper to get tisci handle

[Lokesh Vutla]

Create a wrapper to get the ti sci handle.

Signed-off-by: Lokesh Vutla <lokeshvutla at ti.com>
---
 arch/arm/mach-k3/common.c                 | 13 +++++++++++++
 arch/arm/mach-k3/include/mach/sys_proto.h |  1 +
 2 files changed, 14 insertions(+)

diff --git a/arch/arm/mach-k3/common.c b/arch/arm/mach-k3/common.c
index 5909bbfa8f..23cd37c3c7 100644
--- a/arch/arm/mach-k3/common.c
+++ b/arch/arm/mach-k3/common.c
@@ -11,6 +11,19 @@
 #include "common.h"
 #include <dm.h>
 #include <remoteproc.h>
+#include <linux/soc/ti/ti_sci_protocol.h>
+
+struct ti_sci_handle *get_ti_sci_handle(void)
+{
+	struct udevice *dev;
+	int ret;
+
+	ret = uclass_get_device_by_name(UCLASS_FIRMWARE, "dmsc", &dev);
+	if (ret)
+		panic("Failed to get SYSFW (%d)\n", ret);
+
+	return (struct ti_sci_handle *)ti_sci_get_handle_from_sysfw(dev);
+}
 
 #ifdef CONFIG_SYS_K3_SPL_ATF
 void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
diff --git a/arch/arm/mach-k3/include/mach/sys_proto.h b/arch/arm/mach-k3/include/mach/sys_proto.h
index 0b2007981a..6c773ac7b6 100644
--- a/arch/arm/mach-k3/include/mach/sys_proto.h
+++ b/arch/arm/mach-k3/include/mach/sys_proto.h
@@ -10,5 +10,6 @@
 void sdelay(unsigned long loops);
 u32 wait_on_value(u32 read_bit_mask, u32 match_value, void *read_addr,
 		  u32 bound);
+struct ti_sci_handle *get_ti_sci_handle(void);
 
 #endif
-- 
2.21.0