ARM: OMAP: musb: Add ti81xx phy power function

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>

diff --git a/arch/arm/mach-omap2/omap_phy_internal.c b/arch/arm/mach-omap2/omap_phy_internal.c
index 58775e3c84762e59b9cbe3c82a5d4022638f15ae..4c90477e6f82a91c5c4ddf140cd02cb718f69fc7 100644 (file)
--- a/arch/arm/mach-omap2/omap_phy_internal.c
+++ b/arch/arm/mach-omap2/omap_phy_internal.c
@@ -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);
+}

diff --git a/arch/arm/plat-omap/include/plat/usb.h b/arch/arm/plat-omap/include/plat/usb.h
index 17d3c939775c7164e2c246f8a150bb212bbb0647..c616385f27bdd5b01246511ae68e6352b85317b8 100644 (file)
--- a/arch/arm/plat-omap/include/plat/usb.h
+++ b/arch/arm/plat-omap/include/plat/usb.h
@@ -114,6 +114,7 @@ extern void am35x_musb_reset(void);
 extern void am35x_musb_phy_power(u8 on);
 extern void am35x_musb_clear_irq(void);
 extern void am35x_set_mode(u8 musb_mode);
+extern void ti81xx_musb_phy_power(u8 on);
 
 /*
  * FIXME correct answer depends on hmc_mode,
@@ -273,6 +274,37 @@ static inline void omap2_usbfs_init(struct omap_usb_config *pdata)
 #define CONF2_OTGPWRDN         (1 << 2)
 #define CONF2_DATPOL           (1 << 1)
 
+/* TI81XX specific definitions */
+#define USBCTRL0       0x620
+#define USBSTAT0       0x624
+
+/* TI816X PHY controls bits */
+#define TI816X_USBPHY0_NORMAL_MODE     (1 << 0)
+#define TI816X_USBPHY_REFCLK_OSC       (1 << 8)
+
+/* TI814X PHY controls bits */
+#define USBPHY_CM_PWRDN                (1 << 0)
+#define USBPHY_OTG_PWRDN       (1 << 1)
+#define USBPHY_CHGDET_DIS      (1 << 2)
+#define USBPHY_CHGDET_RSTRT    (1 << 3)
+#define USBPHY_SRCONDM         (1 << 4)
+#define USBPHY_SINKONDP                (1 << 5)
+#define USBPHY_CHGISINK_EN     (1 << 6)
+#define USBPHY_CHGVSRC_EN      (1 << 7)
+#define USBPHY_DMPULLUP                (1 << 8)
+#define USBPHY_DPPULLUP                (1 << 9)
+#define USBPHY_CDET_EXTCTL     (1 << 10)
+#define USBPHY_GPIO_MODE       (1 << 12)
+#define USBPHY_DPOPBUFCTL      (1 << 13)
+#define USBPHY_DMOPBUFCTL      (1 << 14)
+#define USBPHY_DPINPUT         (1 << 15)
+#define USBPHY_DMINPUT         (1 << 16)
+#define USBPHY_DPGPIO_PD       (1 << 17)
+#define USBPHY_DMGPIO_PD       (1 << 18)
+#define USBPHY_OTGVDET_EN      (1 << 19)
+#define USBPHY_OTGSESSEND_EN   (1 << 20)
+#define USBPHY_DATA_POLARITY   (1 << 23)
+
 #if defined(CONFIG_ARCH_OMAP1) && defined(CONFIG_USB)
 u32 omap1_usb0_init(unsigned nwires, unsigned is_device);
 u32 omap1_usb1_init(unsigned nwires);