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ARM: shmobile: r8a7740: Add restart callback

PATCH In review Magnus Damm 1 participant 1 message Aug 28, 2014

Subsystems (4)
Arm (32-bit) Arm sub-architectures SuperH Arm/RISC-V/Renesas architecture
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Magnus Damm

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PATCH 3/5 ARM: shmobile: r8a7740: Add restart callback

From: Magnus Damm <[email protected]>

Port the r8a7740 restart handling from the Armadillo code to the r8a7740 generic multiplatform case.

Signed-off-by Magnus Damm <[email protected]>

---

 arch/arm/mach-shmobile/setup-r8a7740.c |    8 ++++++++
 1 file changed, 8 insertions(+)
arch/arm/mach-shmobile/setup-r8a7740.c +8 -0
@@ -823,6 +823,13 @@ static void __init r8a7740_generic_init(
 	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
 }
 
+#define RESCNT2 IOMEM(0xe6188020)
+static void r8a7740_restart(enum reboot_mode mode, const char *cmd)
+{
+	/* Do soft power on reset */
+	writel(1 << 31, RESCNT2);
+}
+
 static const char *r8a7740_boards_compat_dt[] __initdata = {
 	"renesas,r8a7740",
 	NULL,

@@ -835,6 +842,7 @@ DT_MACHINE_START(R8A7740_DT, "Generic R8
 	.init_machine	= r8a7740_generic_init,
 	.init_late	= shmobile_init_late,
 	.dt_compat	= r8a7740_boards_compat_dt,
+	.restart	= r8a7740_restart,
 MACHINE_END
 
 #endif /* CONFIG_USE_OF */