From: Rodolfo Giometti <giometti@enneenne.com>
Date: Mon, 23 Apr 2007 11:10:52 +0000 (+0200)
Subject: USB: (Another) delay for crappy USB keys.
X-Git-Tag: v1.3.0-rc1~19^2~20^2~12^2~17^2
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=d98c0885ad617fccf21e7c26ef8cb728fbfb2459;p=oweals%2Fu-boot.git

USB: (Another) delay for crappy USB keys.

Some USB keys are slow in giving back an answer when the Root HUB
enables power lines.

Signed-off-by: Rodolfo Giometti <giometti@linux.it>
---

diff --git a/drivers/usb_ohci.c b/drivers/usb_ohci.c
index 1c3f622d54..70cb6a3846 100644
--- a/drivers/usb_ohci.c
+++ b/drivers/usb_ohci.c
@@ -1169,7 +1169,9 @@ pkt_print(dev, pipe, buffer, transfer_len, cmd, "SUB(rh)", usb_pipein(pipe));
 					    WR_RH_PORTSTAT (RH_PS_PRS);
 					OK (0);
 			case (RH_PORT_POWER):
-					WR_RH_PORTSTAT (RH_PS_PPS ); OK (0);
+					WR_RH_PORTSTAT (RH_PS_PPS );
+					wait_ms(100);
+					OK (0);
 			case (RH_PORT_ENABLE): /* BUG IN HUP CODE *********/
 					if (RD_RH_PORTSTAT & RH_PS_CCS)
 					    WR_RH_PORTSTAT (RH_PS_PES );