Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-10 23:24:38 +00:00
Code Issues Projects Releases Packages Wiki Activity

ARM: tegra: enable GPU DT node when appropriate

Browse source 
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
Show stats Download patch file Download diff file Expand all files Collapse all files

15
arch/arm/include/asm/arch-tegra/gpu.h
View file

@ -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 */

19
arch/arm/mach-tegra/gpu.c
View file

@ -45,3 +45,22 @@ bool vpr_configured(void)
{
return _configured;
}
#if defined(CONFIG_OF_LIBFDT)
int gpu_enable_node(void *blob, const char *gpupath)
{
int offset;
if (vpr_configured()) {
offset = fdt_path_offset(blob, gpupath);
if (offset > 0) {
fdt_status_okay(blob, offset);
debug("enabled GPU node %s\n", gpupath);
}
}
return 0;
}
#endif

8
board/nvidia/jetson-tk1/jetson-tk1.c
View file

@ -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;
}

7
board/nvidia/p2571/p2571.c
View file

@ -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;
}

8
board/nvidia/venice2/venice2.c
View file

@ -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;
}

2
include/configs/jetson-tk1.h
View file

@ -79,4 +79,6 @@
#define CONFIG_ARMV7_SECURE_BASE 0xfff00000
#define CONFIG_ARMV7_SECURE_RESERVE_SIZE 0x00100000
#define CONFIG_OF_BOARD_SETUP
#endif /* __CONFIG_H */

1
include/configs/p2571.h
View file

@ -65,5 +65,6 @@
#include "tegra-common-post.h"
#define COUNTER_FREQUENCY 38400000
#define CONFIG_OF_BOARD_SETUP
#endif /* _P2571_H */

2
include/configs/venice2.h
View file

@ -61,4 +61,6 @@
#include "tegra-common-usb-gadget.h"
#include "tegra-common-post.h"
#define CONFIG_OF_BOARD_SETUP
#endif /* __CONFIG_H */