[U-Boot] [PATCH v2 6/7] board: evb-rk3399: enable usb 2.0 host vbus power on board_init
Kever Yang
kever.yang at rock-chips.com
Fri Aug 19 09:19:29 CEST 2016
rk3399 using one gpio control signal for two usb 2.0 host port,
it's better to enable the power in board file instead of in usb driver.
Signed-off-by: Kever Yang <kever.yang at rock-chips.com>
---
Changes in v2:
- use regulator_get_by_platname instead of uclass_get_device_by_name
board/rockchip/evb_rk3399/evb-rk3399.c | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/board/rockchip/evb_rk3399/evb-rk3399.c b/board/rockchip/evb_rk3399/evb-rk3399.c
index cd61f59..d1f1e89 100644
--- a/board/rockchip/evb_rk3399/evb-rk3399.c
+++ b/board/rockchip/evb_rk3399/evb-rk3399.c
@@ -9,12 +9,13 @@
#include <asm/arch/periph.h>
#include <usb.h>
#include <dwc3-uboot.h>
+#include <power/regulator.h>
DECLARE_GLOBAL_DATA_PTR;
int board_init(void)
{
- struct udevice *pinctrl;
+ struct udevice *pinctrl, *regulator;
int ret;
/*
@@ -40,6 +41,18 @@ int board_init(void)
goto out;
}
+ ret = regulator_get_by_platname("vcc5v0_host", ®ulator);
+ if (ret) {
+ debug("%s vcc5v0_host init fail! ret %d\n", __func__, ret);
+ goto out;
+ }
+
+ ret = regulator_set_enable(regulator, true);
+ if (ret) {
+ debug("%s vcc5v0-host-en set fail!\n", __func__);
+ goto out;
+ }
+
out:
return 0;
}
--
1.9.1
More information about the U-Boot
mailing list