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ARM: OMAP: musb: Add ti81xx phy power function

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Adding ti81xx_musb_phy_power() which will be used by musb driver through
its function pointer in board_data.

Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Ravi Babu <ravibabu@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Ajay Kumar Gupta
2011-12-13 10:50:58 -08:00
committed by Tony Lindgren
parent cada691f86
commit 8f718d2414
2 changed files with 67 additions and 0 deletions
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35
arch/arm/mach-omap2/omap_phy_internal.c
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@@ -260,3 +260,38 @@ void am35x_set_mode(u8 musb_mode)
omap_ctrl_writel(devconf2, AM35XX_CONTROL_DEVCONF2);
}
void ti81xx_musb_phy_power(u8 on)
{
void __iomem *scm_base = NULL;
u32 usbphycfg;
scm_base = ioremap(TI81XX_SCM_BASE, SZ_2K);
if (!scm_base) {
pr_err("system control module ioremap failed\n");
return;
}
usbphycfg = __raw_readl(scm_base + USBCTRL0);
if (on) {
if (cpu_is_ti816x()) {
usbphycfg |= TI816X_USBPHY0_NORMAL_MODE;
usbphycfg &= ~TI816X_USBPHY_REFCLK_OSC;
} else if (cpu_is_ti814x()) {
usbphycfg &= ~(USBPHY_CM_PWRDN | USBPHY_OTG_PWRDN
| USBPHY_DPINPUT | USBPHY_DMINPUT);
usbphycfg |= (USBPHY_OTGVDET_EN | USBPHY_OTGSESSEND_EN
| USBPHY_DPOPBUFCTL | USBPHY_DMOPBUFCTL);
}
} else {
if (cpu_is_ti816x())
usbphycfg &= ~TI816X_USBPHY0_NORMAL_MODE;
else if (cpu_is_ti814x())
usbphycfg |= USBPHY_CM_PWRDN | USBPHY_OTG_PWRDN;
}
__raw_writel(usbphycfg, scm_base + USBCTRL0);
iounmap(scm_base);
}