/*
* Copyright 2008-2014 Freescale Semiconductor, Inc.
*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * Version 2 as published by the Free Software Foundation.
+ * SPDX-License-Identifier: GPL-2.0
*/
#include <common.h>
#define ULL_8FS 0xFFFFFFFFULL
-u32 fsl_ddr_get_version(void)
+u32 fsl_ddr_get_version(unsigned int ctrl_num)
{
struct ccsr_ddr __iomem *ddr;
u32 ver_major_minor_errata;
- ddr = (void *)_DDR_ADDR;
+ switch (ctrl_num) {
+ case 0:
+ ddr = (void *)CONFIG_SYS_FSL_DDR_ADDR;
+ break;
+#if defined(CONFIG_SYS_FSL_DDR2_ADDR) && (CONFIG_NUM_DDR_CONTROLLERS > 1)
+ case 1:
+ ddr = (void *)CONFIG_SYS_FSL_DDR2_ADDR;
+ break;
+#endif
+#if defined(CONFIG_SYS_FSL_DDR3_ADDR) && (CONFIG_NUM_DDR_CONTROLLERS > 2)
+ case 2:
+ ddr = (void *)CONFIG_SYS_FSL_DDR3_ADDR;
+ break;
+#endif
+#if defined(CONFIG_SYS_FSL_DDR4_ADDR) && (CONFIG_NUM_DDR_CONTROLLERS > 3)
+ case 3:
+ ddr = (void *)CONFIG_SYS_FSL_DDR4_ADDR;
+ break;
+#endif
+ default:
+ printf("%s unexpected ctrl_num = %u\n", __func__, ctrl_num);
+ return 0;
+ }
ver_major_minor_errata = (ddr_in32(&ddr->ip_rev1) & 0xFFFF) << 8;
ver_major_minor_errata |= (ddr_in32(&ddr->ip_rev2) & 0xFF00) >> 8;
/* Calculate CAS latency based on timing cfg values */
cas_lat = ((ddr_in32(&ddr->timing_cfg_1) >> 16) & 0xf);
- if (fsl_ddr_get_version() <= 0x40400)
+ if (fsl_ddr_get_version(0) <= 0x40400)
cas_lat += 1;
else
cas_lat += 2;
ddr_out32(ddrc_debug2_p[i], ddrc_debug2[i]);
}
#endif /* CONFIG_FSL_DDR_SYNC_REFRESH */
+
+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
+}