ARM: OMAP2+: AM43xx: implement support for machine restart

Add restart hook so that AM4372 builds can restart the platform.
Signed-off-by: NLokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: NPaul Walmsley <paul@pwsan.com>

arch/arm/mach-omap2/Makefile

@@ -60,6 +60,7 @@ AFLAGS_sram34xx.o			:=-Wa,-march=armv7-a
 obj-$(CONFIG_SOC_OMAP2420)		+= omap2-restart.o
 obj-$(CONFIG_SOC_OMAP2430)		+= omap2-restart.o
 obj-$(CONFIG_SOC_AM33XX)		+= am33xx-restart.o
+obj-$(CONFIG_SOC_AM43XX)		+= omap4-restart.o
 obj-$(CONFIG_ARCH_OMAP3)		+= omap3-restart.o
 obj-$(CONFIG_ARCH_OMAP4)		+= omap4-restart.o
 obj-$(CONFIG_SOC_OMAP5)			+= omap4-restart.o

arch/arm/mach-omap2/board-generic.c

@@ -231,6 +231,7 @@ DT_MACHINE_START(AM43_DT, "Generic AM43 (Flattened Device Tree)")
 	.init_machine	= omap_generic_init,
 	.init_time	= omap3_sync32k_timer_init,
 	.dt_compat	= am43_boards_compat,
+	.restart	= omap44xx_restart,
 MACHINE_END
 #endif
 

arch/arm/mach-omap2/prminst44xx.c

@@ -25,6 +25,7 @@
 #include "prminst44xx.h"
 #include "prm-regbits-44xx.h"
 #include "prcm44xx.h"
+#include "prcm43xx.h"
 #include "prcm_mpu44xx.h"
 #include "soc.h"
 
@@ -176,6 +177,8 @@ void omap4_prminst_global_warm_sw_reset(void)
 		dev_inst = OMAP54XX_PRM_DEVICE_INST;
 	else if (soc_is_dra7xx())
 		dev_inst = DRA7XX_PRM_DEVICE_INST;
+	else if (soc_is_am43xx())
+		dev_inst = AM43XX_PRM_DEVICE_INST;
 	else
 		return;