PSR_ICC
unsigned long tstate = ((unsigned long)(psr & PSR_ICC)) << 12;
regs->psr = (regs->psr & ~(PSR_ICC | PSR_SYSCALL)) |
(psr & (PSR_ICC | PSR_SYSCALL));
regs->psr = (regs->psr & ~(PSR_ICC | PSR_SYSCALL)) |
(v[0] & (PSR_ICC | PSR_SYSCALL));
regs->psr = (up_psr & ~(PSR_ICC | PSR_EF))
| (regs->psr & (PSR_ICC | PSR_EF));
regs->psr = (regs->psr & ~PSR_ICC) | (psr & PSR_ICC);