int cpu_init_f(void)
{
- /*
- * Set the UARTxCTL register at it's slower,
- * baud clock giving us a 1.8432 MHz reference
- */
- writeb(0x07, &sc520_mmcr->uart1ctl);
- writeb(0x07, &sc520_mmcr->uart2ctl);
-
- /* first set the timer pin mapping */
- writeb(0x72, &sc520_mmcr->clksel); /* no clock frequency selected, use 1.1892MHz */
-
- /* enable PCI bus arbiter (concurrent mode) */
- writeb(0x02, &sc520_mmcr->sysarbctl);
-
- /* enable external grants */
- writeb(0x1f, &sc520_mmcr->sysarbmenb);
-
- /* enable posted-writes */
- writeb(0x04, &sc520_mmcr->hbctl);
-
if (CONFIG_SYS_SC520_HIGH_SPEED) {
/* set it to 133 MHz and write back */
writeb(0x02, &sc520_mmcr->cpuctl);
writew(0x0615, &sc520_mmcr->romcs1ctl);
writew(0x0615, &sc520_mmcr->romcs2ctl);
+ /*
+ * Set the timer pin mapping
+ * no clock frequency selected, use 1.1892MHz
+ */
+ writeb(0x72, &sc520_mmcr->clksel);
+
writeb(0x00, &sc520_mmcr->adddecctl);
writeb(0x07, &sc520_mmcr->uart1ctl);
writeb(0x07, &sc520_mmcr->uart2ctl);
writeb(0x06, &sc520_mmcr->sysarbctl);
writew(0x0003, &sc520_mmcr->sysarbmenb);
+ /* enable posted-writes */
+ writeb(0x04, &sc520_mmcr->hbctl);
+
return 0;
}