CPU board (E2530) has a fan - turn it on via GPIO to keep
the SoC cool.
Signed-off-by: Tom Warren <twar...@nvidia.com>
---
arch/arm/mach-tegra/board2.c | 3 +++
board/nvidia/p2571/p2571.c | 12 ++++++++++++
2 files changed, 15 insertions(+)
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..4b0f973 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 Foster-FFD
+ */
+void start_cpu_fan(void)
+{
+ /* GPIO_PE4 is PS_VDD_FAN_ENABLE */
+ gpio_request(GPIO_PE4, "FAN_VDD");
+ gpio_direction_output(GPIO_PE4, 1);
+}
--
1.8.2.1.610.g562af5b
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