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[U-Boot,1/3] BeagleBoard: turn off clocks in ehci_stop

Message ID 1313462214-3716-1-git-send-email-agnel.joel@gmail.com
State Accepted
Commit f44047df3b365e0fdd9be367971ade81b9afdf15
Delegated to: Sandeep Paulraj
Headers show

Commit Message

Joel Fernandes Aug. 16, 2011, 2:36 a.m. UTC 
From: Koen Kooi <koen@dominion.thruhere.net>

This fixes display problems in linux

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
Signed-off-by: Joel A Fernandes <agnel.joel@gmail.com>
---
 board/ti/beagle/beagle.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
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Patch

diff --git a/board/ti/beagle/beagle.c b/board/ti/beagle/beagle.c
index 7768901..a958545 100644
--- a/board/ti/beagle/beagle.c
+++ b/board/ti/beagle/beagle.c
@@ -356,6 +356,12 @@  int ehci_hcd_stop(void)
 	pr_debug("Resetting OMAP3 EHCI\n");
 	omap_set_gpio_dataout(GPIO_PHY_RESET, 0);
 	writel(OMAP_UHH_SYSCONFIG_SOFTRESET, OMAP3_UHH_BASE + OMAP_UHH_SYSCONFIG);
+	/* disable USB clocks */
+	struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
+	sr32(&prcm_base->iclken_usbhost, 0, 1, 0);
+	sr32(&prcm_base->fclken_usbhost, 0, 2, 0);
+	sr32(&prcm_base->iclken3_core, 2, 1, 0);
+	sr32(&prcm_base->fclken3_core, 2, 1, 0);
 	return 0;
 }