/**
* am33xx_cm_wait_module_ready - wait for a module to be in 'func' state
* @inst: Offset of CM instance associated with
* @clkctrl_reg: CLKCTRL offset from CM instance base
*
* Wait for the module IDLEST to be functional. If the idle state is in any
* the non functional state (trans, idle or disabled), module and thus the
* sysconfig cannot be accessed and will probably lead to an "imprecise
* external abort"
*
* Module idle state:
* 0x0 func: Module is fully functional, including OCP
* 0x1 trans: Module is performing transition: wakeup, or sleep, or sleep
* abortion
* 0x2 idle: Module is in Idle mode (only OCP part). It is functional if
* using separate functional clock
* 0x3 disabled: Module is disabled and cannot be accessed
*
*/
int am33xx_cm_wait_module_ready(u16 inst, u16 clkctrl_reg)
{
int i = 0;
omap_test_timeout((
((__raw_readl(AM33XX_CM_REGADDR(inst, clkctrl_reg)) &
AM33XX_IDLEST_MASK) == 0)), MAX_MODULE_READY_TIME, i);
return (i < MAX_MODULE_READY_TIME) ? 0 : -EBUSY;
}
int __init am33xx_register_ehrpwm(void)
{
void __iomem *iobase;
unsigned short regword;
iobase = AM33XX_CM_REGADDR(0, 0x10664);
regword = readw(iobase);
regword |= 0x7;
writew(regword, iobase);
return 0;
}
