From a38a3c4af4ed72a2ed6192203f8fe17ccdd2389f Mon Sep 17 00:00:00 2001
From: Alexandre Courbot <acourbot@nvidia.com>
Date: Thu, 9 Jul 2015 16:33:01 +0900
Subject: ARM: tegra: enable GPU DT node when appropriate

T124/210 requires some specific configuration (VPR setup) to
be performed by the bootloader before the GPU can be used.
For this reason, the GPU node in the device tree is disabled
by default. This patch enables the node if U-boot has performed
VPR configuration.

Boards enabled by this patch are T124's Jetson TK1 and Venice2
and T210's P2571.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Cc: Stephen Warren <swarren@nvidia.com>
Cc: Tom Warren <twarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
---
 board/nvidia/jetson-tk1/jetson-tk1.c | 8 ++++++++
 board/nvidia/p2571/p2571.c           | 7 +++++++
 board/nvidia/venice2/venice2.c       | 8 ++++++++
 3 files changed, 23 insertions(+)

(limited to 'board')

diff --git a/board/nvidia/jetson-tk1/jetson-tk1.c b/board/nvidia/jetson-tk1/jetson-tk1.c
index 52425a8f6d..3c21767ce4 100644
--- a/board/nvidia/jetson-tk1/jetson-tk1.c
+++ b/board/nvidia/jetson-tk1/jetson-tk1.c
@@ -11,6 +11,7 @@
 
 #include <asm/arch/gpio.h>
 #include <asm/arch/pinmux.h>
+#include <asm/arch-tegra/gpu.h>
 
 #include "pinmux-config-jetson-tk1.h"
 
@@ -79,3 +80,10 @@ int board_eth_init(bd_t *bis)
 	return pci_eth_init(bis);
 }
 #endif /* PCI */
+
+int ft_board_setup(void *blob, bd_t *bd)
+{
+	gpu_enable_node(blob, "/gpu@0,57000000");
+
+	return 0;
+}
diff --git a/board/nvidia/p2571/p2571.c b/board/nvidia/p2571/p2571.c
index d80a7d0d3e..d33e4d12b2 100644
--- a/board/nvidia/p2571/p2571.c
+++ b/board/nvidia/p2571/p2571.c
@@ -11,6 +11,7 @@
 #include <asm/arch/pinmux.h>
 #include <asm/gpio.h>
 #include "max77620_init.h"
+#include <asm/arch-tegra/gpu.h>
 #include "pinmux-config-p2571.h"
 
 void pin_mux_mmc(void)
@@ -61,3 +62,9 @@ void start_cpu_fan(void)
 	gpio_request(GPIO_PE4, "FAN_VDD");
 	gpio_direction_output(GPIO_PE4, 1);
 }
+
+int ft_board_setup(void *blob, bd_t *bd)
+{
+	gpu_enable_node(blob, "/gpu@0,57000000");
+	return 0;
+}
diff --git a/board/nvidia/venice2/venice2.c b/board/nvidia/venice2/venice2.c
index c56ef129d6..3e2b9a7745 100644
--- a/board/nvidia/venice2/venice2.c
+++ b/board/nvidia/venice2/venice2.c
@@ -8,6 +8,7 @@
 #include <common.h>
 #include <asm/arch/gpio.h>
 #include <asm/arch/pinmux.h>
+#include <asm/arch-tegra/gpu.h>
 #include "pinmux-config-venice2.h"
 
 /*
@@ -27,3 +28,10 @@ void pinmux_init(void)
 	pinmux_config_drvgrp_table(venice2_drvgrps,
 				   ARRAY_SIZE(venice2_drvgrps));
 }
+
+int ft_board_setup(void *blob, bd_t *bd)
+{
+	gpu_enable_node(blob, "/gpu@0,57000000");
+
+	return 0;
+}
-- 
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