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ARM: tegra: enable GPU DT node when appropriate

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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>
This commit is contained in:
Alexandre Courbot
2015-07-09 16:33:01 +09:00
committed by Tom Warren
parent 871d78ed1b
commit a38a3c4af4
8 changed files with 62 additions and 0 deletions
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15
arch/arm/include/asm/arch-tegra/gpu.h
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@@ -25,3 +25,18 @@ static inline bool gpu_configured(void)
}
#endif /* CONFIG_TEGRA_GPU */
#if defined(CONFIG_OF_LIBFDT)
int gpu_enable_node(void *blob, const char *gpupath);
#else /* CONFIG_OF_LIBFDT */
static inline int gpu_enable_node(void *blob, const char *gpupath)
{
return 0;
}
#endif /* CONFIG_OF_LIBFDT */
#endif /* __ASM_ARCH_TEGRA_GPU_H */