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| author | Tom Warren <twarren@nvidia.com> | 2015-02-20 12:22:22 -0700 |
|---|---|---|
| committer | Tom Warren <twarren@nvidia.com> | 2015-08-05 15:22:51 -0700 |
| commit | 66999892b24d3443b24118a6ea400115360e1eb2 (patch) | |
| tree | a19df64fe16582674aed1277d89f3d1441c0cb9c | |
| parent | e7436f609c918b7d6fd8e1d2c7b0b85efe9af26f (diff) | |
| download | u-boot-imx-66999892b24d3443b24118a6ea400115360e1eb2.zip u-boot-imx-66999892b24d3443b24118a6ea400115360e1eb2.tar.gz u-boot-imx-66999892b24d3443b24118a6ea400115360e1eb2.tar.bz2 | |
T210: P2571: Turn CPU fan on
CPU board (E2530) has a fan - turn it on via GPIO to keep
the SoC cool.
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
| -rw-r--r-- | arch/arm/mach-tegra/board2.c | 3 | ||||
| -rw-r--r-- | board/nvidia/p2571/p2571.c | 12 |
2 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/board2.c b/arch/arm/mach-tegra/board2.c index 36bcfb0..2927b4e 100644 --- a/arch/arm/mach-tegra/board2.c +++ b/arch/arm/mach-tegra/board2.c @@ -60,6 +60,7 @@ __weak void pin_mux_usb(void) {} __weak void pin_mux_spi(void) {} __weak void gpio_early_init_uart(void) {} __weak void pin_mux_display(void) {} +__weak void start_cpu_fan(void) {} #if defined(CONFIG_TEGRA_NAND) __weak void pin_mux_nand(void) @@ -230,6 +231,8 @@ int board_late_init(void) setenv("cpu_ns_mode", ""); } #endif + start_cpu_fan(); + return 0; } diff --git a/board/nvidia/p2571/p2571.c b/board/nvidia/p2571/p2571.c index 842242c..d80a7d0 100644 --- a/board/nvidia/p2571/p2571.c +++ b/board/nvidia/p2571/p2571.c @@ -9,6 +9,7 @@ #include <i2c.h> #include <asm/arch/gpio.h> #include <asm/arch/pinmux.h> +#include <asm/gpio.h> #include "max77620_init.h" #include "pinmux-config-p2571.h" @@ -49,3 +50,14 @@ void pinmux_init(void) pinmux_config_drvgrp_table(p2571_drvgrps, ARRAY_SIZE(p2571_drvgrps)); } + +/* + * Routine: start_cpu_fan + * Description: Enable/start PWM CPU fan on P2571 + */ +void start_cpu_fan(void) +{ + /* GPIO_PE4 is PS_VDD_FAN_ENABLE */ + gpio_request(GPIO_PE4, "FAN_VDD"); + gpio_direction_output(GPIO_PE4, 1); +} |