Does pin sys_fault on bf609 must pull_down?
If i leave it unconnected, what will happen?
I design a pcb, and sys_fault is not connected. uClinux whill hang after enable SEC.
In function init_arch_irq
bfin_write_SEC_FCTL(SEC_FCTL_EN | SEC_FCTL_SYSRST_EN | SEC_FCTL_FLTIN_EN);
bfin_write_SEC_SCI(0, SEC_CCTL, SEC_CCTL_RESET);
bfin_write_SEC_GCTL(SEC_GCTL_EN); /* after this line, bf609 looks like be reset */
bfin_write_SEC_SCI(0, SEC_CCTL, SEC_CCTL_EN | SEC_CCTL_NMI_EN);
bfin_write_SEC_SCI(1, SEC_CCTL, SEC_CCTL_EN | SEC_CCTL_NMI_EN);
i use gdbproxy, read RCU_STAT is 0x24. it looks like System source reset occurred.