powerpc/b4860qds: Assign DDR address in board file
B4860QDS requires DDRC2 has 0 as base address and DDRC1 has higher address.
This is the requirement for DSP cores to run in 32-bit address space.
Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
diff --git a/board/freescale/b4860qds/ddr.c b/board/freescale/b4860qds/ddr.c
index dd4c0f6..b82b3d4 100644
--- a/board/freescale/b4860qds/ddr.c
+++ b/board/freescale/b4860qds/ddr.c
@@ -13,6 +13,7 @@
#include <asm/fsl_ddr_sdram.h>
#include <asm/fsl_ddr_dimm_params.h>
#include <asm/fsl_law.h>
+#include <../arch/powerpc/cpu/mpc8xxx/ddr/ddr.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -188,3 +189,74 @@
puts(" DDR: ");
return dram_size;
}
+
+unsigned long long step_assign_addresses(fsl_ddr_info_t *pinfo,
+ unsigned int dbw_cap_adj[])
+{
+ int i, j;
+ unsigned long long total_mem, current_mem_base, total_ctlr_mem;
+ unsigned long long rank_density, ctlr_density = 0;
+
+ current_mem_base = 0ull;
+ total_mem = 0;
+ /*
+ * This board has soldered DDR chips. DDRC1 has two rank.
+ * DDRC2 has only one rank.
+ * Assigning DDRC2 to lower address and DDRC1 to higher address.
+ */
+ if (pinfo->memctl_opts[0].memctl_interleaving) {
+ rank_density = pinfo->dimm_params[0][0].rank_density >>
+ dbw_cap_adj[0];
+ ctlr_density = rank_density;
+
+ debug("rank density is 0x%llx, ctlr density is 0x%llx\n",
+ rank_density, ctlr_density);
+ for (i = CONFIG_NUM_DDR_CONTROLLERS - 1; i >= 0; i--) {
+ switch (pinfo->memctl_opts[i].memctl_interleaving_mode) {
+ case FSL_DDR_CACHE_LINE_INTERLEAVING:
+ case FSL_DDR_PAGE_INTERLEAVING:
+ case FSL_DDR_BANK_INTERLEAVING:
+ case FSL_DDR_SUPERBANK_INTERLEAVING:
+ total_ctlr_mem = 2 * ctlr_density;
+ break;
+ default:
+ panic("Unknown interleaving mode");
+ }
+ pinfo->common_timing_params[i].base_address =
+ current_mem_base;
+ pinfo->common_timing_params[i].total_mem =
+ total_ctlr_mem;
+ total_mem = current_mem_base + total_ctlr_mem;
+ debug("ctrl %d base 0x%llx\n", i, current_mem_base);
+ debug("ctrl %d total 0x%llx\n", i, total_ctlr_mem);
+ }
+ } else {
+ /*
+ * Simple linear assignment if memory
+ * controllers are not interleaved.
+ */
+ for (i = CONFIG_NUM_DDR_CONTROLLERS - 1; i >= 0; i--) {
+ total_ctlr_mem = 0;
+ pinfo->common_timing_params[i].base_address =
+ current_mem_base;
+ for (j = 0; j < CONFIG_DIMM_SLOTS_PER_CTLR; j++) {
+ /* Compute DIMM base addresses. */
+ unsigned long long cap =
+ pinfo->dimm_params[i][j].capacity;
+ pinfo->dimm_params[i][j].base_address =
+ current_mem_base;
+ debug("ctrl %d dimm %d base 0x%llx\n",
+ i, j, current_mem_base);
+ current_mem_base += cap;
+ total_ctlr_mem += cap;
+ }
+ debug("ctrl %d total 0x%llx\n", i, total_ctlr_mem);
+ pinfo->common_timing_params[i].total_mem =
+ total_ctlr_mem;
+ total_mem += total_ctlr_mem;
+ }
+ }
+ debug("Total mem by %s is 0x%llx\n", __func__, total_mem);
+
+ return total_mem;
+}