diff options
| author | Sughosh Ganu | 2012-08-09 10:45:20 +0000 |
|---|---|---|
| committer | Albert ARIBAUD | 2012-09-01 14:58:19 +0200 |
| commit | 25f8bf6eff9e66df850301c5e9e5259807e286f0 (patch) | |
| tree | ac5279bf8fda37cce9c11c4fb7c5c9eb34015f29 /board/davinci | |
| parent | 975b71bc10acb944092456fceb35aca7222addc0 (diff) | |
da8xx/hawkboard: Add support for ohci host controller
Also enable the ohci port on hawkboard. These additions result in an
increased u-boot size -- adjust the same accordingly in the board's
config.
Move the usb header for da8xx platforms under arch-davinci.
Signed-off-by: Sughosh Ganu <urwithsughosh@gmail.com>
Diffstat (limited to 'board/davinci')
| -rw-r--r-- | board/davinci/da8xxevm/hawkboard.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/board/davinci/da8xxevm/hawkboard.c b/board/davinci/da8xxevm/hawkboard.c index b6942589f47..156cb7f4ca7 100644 --- a/board/davinci/da8xxevm/hawkboard.c +++ b/board/davinci/da8xxevm/hawkboard.c @@ -4,6 +4,7 @@ * Copyright (C) 2008 Sekhar Nori, Texas Instruments, Inc. <nsekhar@ti.com> * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net> * Copyright (C) 2004 Texas Instruments. + * Copyright (C) 2012 Sughosh Ganu <urwithsughosh@gmail.com>. * * ---------------------------------------------------------------------------- * This program is free software; you can redistribute it and/or modify @@ -28,6 +29,7 @@ #include <asm/io.h> #include <asm/arch/davinci_misc.h> #include <asm/arch/pinmux_defs.h> +#include <asm/arch/da8xx-usb.h> #include <ns16550.h> DECLARE_GLOBAL_DATA_PTR; @@ -89,3 +91,42 @@ int misc_init_r(void) return 0; } + +int usb_phy_on(void) +{ + u32 timeout; + u32 cfgchip2; + + cfgchip2 = readl(&davinci_syscfg_regs->cfgchip2); + + cfgchip2 &= ~(CFGCHIP2_RESET | CFGCHIP2_PHYPWRDN | CFGCHIP2_OTGPWRDN | + CFGCHIP2_OTGMODE | CFGCHIP2_REFFREQ | + CFGCHIP2_USB1PHYCLKMUX); + cfgchip2 |= CFGCHIP2_SESENDEN | CFGCHIP2_VBDTCTEN | CFGCHIP2_PHY_PLLON | + CFGCHIP2_REFFREQ_24MHZ | CFGCHIP2_USB2PHYCLKMUX | + CFGCHIP2_USB1SUSPENDM; + + writel(cfgchip2, &davinci_syscfg_regs->cfgchip2); + + /* wait until the usb phy pll locks */ + timeout = DA8XX_USB_OTG_TIMEOUT; + while (timeout--) + if (readl(&davinci_syscfg_regs->cfgchip2) & CFGCHIP2_PHYCLKGD) + return 1; + + /* USB phy was not turned on */ + return 0; +} + +void usb_phy_off(void) +{ + u32 cfgchip2; + + /* + * Power down the on-chip PHY. + */ + cfgchip2 = readl(&davinci_syscfg_regs->cfgchip2); + cfgchip2 &= ~(CFGCHIP2_PHY_PLLON | CFGCHIP2_USB1SUSPENDM); + cfgchip2 |= CFGCHIP2_PHYPWRDN | CFGCHIP2_OTGPWRDN | CFGCHIP2_RESET; + writel(cfgchip2, &davinci_syscfg_regs->cfgchip2); +} |