[U-Boot] [PATCH v3 02/10] apalis-tk1: set apalis gpio 8 aka fan_en

Igor Opaniuk
2019-08-05T15:20:39Z

From: Igor Opaniuk <igor.opaniuk@toradex.com>

Make sure the Apalis GPIO 8 aka FAN_EN is on when using Apalis TK1
modules.

Reviewed-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
Signed-off-by: Igor Opaniuk <igor.opaniuk@toradex.com>
Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com>
---

board/toradex/apalis-tk1/apalis-tk1.c | 10 ++++++++++
1 file changed, 10 insertions(+)

diff --git a/board/toradex/apalis-tk1/apalis-tk1.c b/board/toradex/apalis-tk1/apalis-tk1.c
index b87e9e7a3e..d57c5042dd 100644
--- a/board/toradex/apalis-tk1/apalis-tk1.c
+++ b/board/toradex/apalis-tk1/apalis-tk1.c
@@ -19,6 +19,7 @@

#define LAN_DEV_OFF_N TEGRA_GPIO(O, 6)
#define LAN_RESET_N TEGRA_GPIO(S, 2)
+#define FAN_EN TEGRA_GPIO(DD, 2)
#define LAN_WAKE_N TEGRA_GPIO(O, 5)
#ifdef CONFIG_APALIS_TK1_PCIE_EVALBOARD_INIT
#define PEX_PERST_N TEGRA_GPIO(DD, 1) /* Apalis GPIO7 */
@@ -241,6 +242,15 @@ void tegra_pcie_board_port_reset(struct tegra_pcie_port *port)
}
#endif /* CONFIG_PCI_TEGRA */

+/*
+ * Enable/start PWM CPU fan
+ */
+void start_cpu_fan(void)
+{
+ gpio_request(FAN_EN, "FAN_EN");
+ gpio_direction_output(FAN_EN, 1);
+}
+
/*
* Backlight off before OS handover
*/
--
2.17.1