From: Dima Zavin <dima@android.com>
Date: Fri, 17 Sep 2010 00:58:05 +0000 (-0700)
Subject: ARM: tegra: powergate the mpe and 3d cores at boot
X-Git-Tag: firefly_0821_release~9833^2~213
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=c5565e5628ed1bdb53a14ac1d1db7aa21330b193;p=firefly-linux-kernel-4.4.55.git

ARM: tegra: powergate the mpe and 3d cores at boot

Change-Id: I6ca09db039cd80eab18d062a7a4b5d2a93bd385e
Signed-off-by: Dima Zavin <dima@android.com>
---

diff --git a/arch/arm/mach-tegra/common.c b/arch/arm/mach-tegra/common.c
index 3304e92b5fe1..d5852042123a 100644
--- a/arch/arm/mach-tegra/common.c
+++ b/arch/arm/mach-tegra/common.c
@@ -26,6 +26,7 @@
 
 #include <mach/iomap.h>
 #include <mach/dma.h>
+#include <mach/powergate.h>
 #include <mach/system.h>
 
 #include "board.h"
@@ -66,11 +67,18 @@ void __init tegra_init_cache(void)
 
 }
 
+static void __init tegra_init_power(void)
+{
+	tegra_powergate_power_off(TEGRA_POWERGATE_MPE);
+	tegra_powergate_power_off(TEGRA_POWERGATE_3D);
+}
+
 void __init tegra_common_init(void)
 {
 	tegra_init_fuse();
 	tegra_init_clock();
 	tegra_clk_init_from_table(common_clk_init_table);
+	tegra_init_power();
 	tegra_init_cache();
 #ifdef CONFIG_TEGRA_SYSTEM_DMA
 	tegra_dma_init();