From: Stephen Warren Date: Mon, 19 May 2014 20:21:18 +0000 (-0600) Subject: usb: hub: remove CONFIG_USB_HUB_MIN_POWER_ON_DELAY X-Git-Tag: v2014.07-rc4~111^2~10 X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=77b83e6d099cb2149e5b2c33a700003227d99297;p=u-boot usb: hub: remove CONFIG_USB_HUB_MIN_POWER_ON_DELAY Now that we wait the correct specification-mandated time at the end of usb_hub_power_on(), I suspect that CONFIG_USB_HUB_MIN_POWER_ON_DELAY has no purpose. For cm_t35.h, we already wait longer than the original MIN_POWER_ON_DELAY, so this change is safe. For gw_ventana.h, we will wait as long as the original MIN_POWER_ON_DELAY iff pgood_delay was at least 200ms. I'm not sure if this is the case or not, hence I've CC'd relevant people to test this change. Cc: Igor Grinberg Cc: Tim Harvey Signed-off-by: Stephen Warren --- diff --git a/README b/README index a280435e9f..a085625841 100644 --- a/README +++ b/README @@ -1432,9 +1432,6 @@ The following options need to be configured: CONFIG_USB_EHCI_TXFIFO_THRESH enables setting of the txfilltuning field in the EHCI controller on reset. - CONFIG_USB_HUB_MIN_POWER_ON_DELAY defines the minimum - interval for usb hub power-on delay.(minimum 100msec) - - USB Device: Define the below if you wish to use the USB console. Once firmware is rebuilt from a serial console issue the diff --git a/common/usb_hub.c b/common/usb_hub.c index 4875a51ace..2add4b9792 100644 --- a/common/usb_hub.c +++ b/common/usb_hub.c @@ -35,10 +35,6 @@ #include #endif -#ifndef CONFIG_USB_HUB_MIN_POWER_ON_DELAY -#define CONFIG_USB_HUB_MIN_POWER_ON_DELAY 1000 -#endif - #define USB_BUFSIZ 512 static struct usb_hub_device hub_dev[USB_MAX_HUB]; @@ -142,7 +138,7 @@ static void usb_hub_power_on(struct usb_hub_device *hub) * Wait for power to become stable, * plus spec-defined max time for device to connect */ - mdelay(pgood_delay + CONFIG_USB_HUB_MIN_POWER_ON_DELAY); + mdelay(pgood_delay + 1000); } void usb_hub_reset(void) diff --git a/include/configs/cm_t35.h b/include/configs/cm_t35.h index aae05e0333..f6acf69205 100644 --- a/include/configs/cm_t35.h +++ b/include/configs/cm_t35.h @@ -104,8 +104,6 @@ #define CONFIG_USB_DEVICE #define CONFIG_USB_TTY #define CONFIG_SYS_CONSOLE_IS_IN_ENV -/* This delay is really for slow-to-power-on USB sticks, not the hub */ -#define CONFIG_USB_HUB_MIN_POWER_ON_DELAY 500 /* commands to include */ #include diff --git a/include/configs/gw_ventana.h b/include/configs/gw_ventana.h index cd554957dd..f41c96ea7f 100644 --- a/include/configs/gw_ventana.h +++ b/include/configs/gw_ventana.h @@ -192,7 +192,6 @@ #define CONFIG_USB_ETH_CDC #define CONFIG_NETCONSOLE #define CONFIG_SYS_USB_EVENT_POLL_VIA_CONTROL_EP -#define CONFIG_USB_HUB_MIN_POWER_ON_DELAY 1200 /* Framebuffer and LCD */ #define CONFIG_VIDEO