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EXYNOS: Add power Enable/Disable for USB-EHCI

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This patch adds functions to enable/disable the power of USB
host controller for EXYNOS5.

Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Che-Liang Chiou <clchiou@chromium.org>
Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com>
This commit is contained in:
Rajeshwari Shinde
2012-05-14 05:52:03 +00:00
committed by Marek Vasut
parent 71045da812
commit c48ac11322
3 changed files with 31 additions and 0 deletions
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5
drivers/usb/host/ehci-exynos.c
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@@ -25,6 +25,7 @@
#include <asm/arch/cpu.h>
#include <asm/arch/ehci.h>
#include <asm/arch/system.h>
#include <asm/arch/power.h>
#include "ehci.h"
#include "ehci-core.h"
@@ -33,6 +34,8 @@ static void setup_usb_phy(struct exynos_usb_phy *usb)
{
set_usbhost_mode(USB20_PHY_CFG_HOST_LINK_EN);
set_usbhost_phy_ctrl(POWER_USB_HOST_PHY_CTRL_EN);
clrbits_le32(&usb->usbphyctrl0,
HOST_CTRL0_FSEL_MASK |
HOST_CTRL0_COMMONON_N |
@@ -73,6 +76,8 @@ static void reset_usb_phy(struct exynos_usb_phy *usb)
HOST_CTRL0_SIDDQ |
HOST_CTRL0_FORCESUSPEND |
HOST_CTRL0_FORCESLEEP);
set_usbhost_phy_ctrl(POWER_USB_HOST_PHY_CTRL_DISABLE);
}
/*