GPIO bank E pin 8 & 9 are used to control the on-board two USB ports
VBUS on/off. Let's configure them in the misc_init_r().
Signed-off-by: Bin Meng <bmeng...@gmail.com>
---
board/intel/minnowmax/minnowmax.c | 53 +++++++++++++++++++++++++++++++++++++++
include/configs/minnowmax.h | 1 +
2 files changed, 54 insertions(+)
diff --git a/board/intel/minnowmax/minnowmax.c
b/board/intel/minnowmax/minnowmax.c
index 94b22ed..99aed53 100644
--- a/board/intel/minnowmax/minnowmax.c
+++ b/board/intel/minnowmax/minnowmax.c
@@ -5,9 +5,62 @@
*/
#include <common.h>
+#include <dm.h>
#include <asm/gpio.h>
+#include <dm/device-internal.h>
+#include <dm/uclass-internal.h>
+
+#define GPIO_BANKE_NAME "gpioe"
int arch_early_init_r(void)
{
return 0;
}
+
+int misc_init_r(void)
+{
+ struct udevice *dev;
+ struct gpio_desc desc;
+ int ret;
+
+ /*
+ * Turn on USB VBUS for the two USB ports on the board.
+ * Each port's VBUS is controlled by a GPIO pin.
+ */
+
+ ret = uclass_find_device_by_name(UCLASS_GPIO, GPIO_BANKE_NAME, &dev);
+ if (ret) {
+ debug("%s: GPIO %s device cannot be not found (ret=%d)\n",
+ __func__, GPIO_BANKE_NAME, ret);
+ return ret;
+ }
+
+ ret = device_probe(dev);
+ if (ret) {
+ debug("%s: GPIO %s device probe failed (ret=%d)\n",
+ __func__, GPIO_BANKE_NAME, ret);
+ return ret;
+ }
+
+ desc.dev = dev;
+ desc.flags = GPIOD_IS_OUT;
+
+ /* GPIO E8 controls the bottom port */
+ desc.offset = 8;
+
+ ret = dm_gpio_request(&desc, "usb_host_en0");
+ if (ret)
+ return ret;
+ dm_gpio_set_value(&desc, 1);
+
+ /* GPIO E9 controls the upper port */
+ desc.offset = 9;
+
+ ret = dm_gpio_request(&desc, "usb_host_en1");
+ if (ret)
+ return ret;
+
+ dm_gpio_set_value(&desc, 1);
+
+ return 0;
+}
diff --git a/include/configs/minnowmax.h b/include/configs/minnowmax.h
index 7b9f90c..3744811 100644
--- a/include/configs/minnowmax.h
+++ b/include/configs/minnowmax.h
@@ -16,6 +16,7 @@
#define CONFIG_SYS_MONITOR_LEN (1 << 20)
#define CONFIG_SMSC_LPC47M
+#define CONFIG_MISC_INIT_R
#define CONFIG_STD_DEVICES_SETTINGS "stdin=usbkbd,serial\0" \
"stdout=vidconsole,serial\0" \
--
2.9.2
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