+
+void remove_unused_controllers(fsl_ddr_info_t *info)
+{
+#ifdef CONFIG_FSL_LSCH3
+ int i;
+ u64 nodeid;
+ void *hnf_sam_ctrl = (void *)(CCI_HN_F_0_BASE + CCN_HN_F_SAM_CTL);
+ bool ddr0_used = false;
+ bool ddr1_used = false;
+
+ for (i = 0; i < 8; i++) {
+ nodeid = in_le64(hnf_sam_ctrl) & CCN_HN_F_SAM_NODEID_MASK;
+ if (nodeid == CCN_HN_F_SAM_NODEID_DDR0) {
+ ddr0_used = true;
+ } else if (nodeid == CCN_HN_F_SAM_NODEID_DDR1) {
+ ddr1_used = true;
+ } else {
+ printf("Unknown nodeid in HN-F SAM control: 0x%llx\n",
+ nodeid);
+ }
+ hnf_sam_ctrl += (CCI_HN_F_1_BASE - CCI_HN_F_0_BASE);
+ }
+ if (!ddr0_used && !ddr1_used) {
+ printf("Invalid configuration in HN-F SAM control\n");
+ return;
+ }
+
+ if (!ddr0_used && info->first_ctrl == 0) {
+ info->first_ctrl = 1;
+ info->num_ctrls = 1;
+ debug("First DDR controller disabled\n");
+ return;
+ }
+
+ if (!ddr1_used && info->first_ctrl + info->num_ctrls > 1) {
+ info->num_ctrls = 1;
+ debug("Second DDR controller disabled\n");
+ }
+#endif
+}