1 files changed, 49 insertions, 24 deletions

diff --git a/hw/arm/xlnx-versal.c b/hw/arm/xlnx-versal.c
index 8aa82ceb83..f1b704175f 100644
--- a/hw/arm/xlnx-versal.c
+++ b/hw/arm/xlnx-versal.c
@@ -115,6 +115,11 @@ typedef struct VersalCpuClusterMap {
 typedef struct VersalMap {
     VersalMemMap ocm;
 
+    struct VersalDDRMap {
+        VersalMemMap chan[4];
+        size_t num_chan;
+    } ddr;
+
     VersalCpuClusterMap apu;
     VersalCpuClusterMap rpu;
 
@@ -219,6 +224,14 @@ static const VersalMap VERSAL_MAP = {
         .size = 0x40000,
     },
 
+    .ddr = {
+        .chan[0] = { .addr = 0x0, .size = 2 * GiB },
+        .chan[1] = { .addr = 0x800000000ull, .size = 32 * GiB },
+        .chan[2] = { .addr = 0xc00000000ull, .size = 256 * GiB },
+        .chan[3] = { .addr = 0x10000000000ull, .size = 734 * GiB },
+        .num_chan = 4,
+    },
+
     .apu = {
         .name = "apu",
         .cpu_model = ARM_CPU_TYPE_NAME("cortex-a72"),
@@ -1483,46 +1496,58 @@ static inline void versal_create_crl(Versal *s)
     versal_sysbus_connect_irq(s, SYS_BUS_DEVICE(dev), 0, map->crl.irq);
 }
 
-/* This takes the board allocated linear DDR memory and creates aliases
+/*
+ * This takes the board allocated linear DDR memory and creates aliases
  * for each split DDR range/aperture on the Versal address map.
  */
-static void versal_map_ddr(Versal *s)
+static void versal_map_ddr(Versal *s, const struct VersalDDRMap *map)
 {
     uint64_t size = memory_region_size(s->cfg.mr_ddr);
-    /* Describes the various split DDR access regions.  */
-    static const struct {
-        uint64_t base;
-        uint64_t size;
-    } addr_ranges[] = {
-        { MM_TOP_DDR, MM_TOP_DDR_SIZE },
-        { MM_TOP_DDR_2, MM_TOP_DDR_2_SIZE },
-        { MM_TOP_DDR_3, MM_TOP_DDR_3_SIZE },
-        { MM_TOP_DDR_4, MM_TOP_DDR_4_SIZE }
-    };
     uint64_t offset = 0;
     int i;
 
-    assert(ARRAY_SIZE(addr_ranges) == ARRAY_SIZE(s->noc.mr_ddr_ranges));
-    for (i = 0; i < ARRAY_SIZE(addr_ranges) && size; i++) {
-        char *name;
+    for (i = 0; i < map->num_chan && size; i++) {
         uint64_t mapsize;
+        MemoryRegion *alias;
+
+        mapsize = MIN(size, map->chan[i].size);
 
-        mapsize = size < addr_ranges[i].size ? size : addr_ranges[i].size;
-        name = g_strdup_printf("noc-ddr-range%d", i);
         /* Create the MR alias.  */
-        memory_region_init_alias(&s->noc.mr_ddr_ranges[i], OBJECT(s),
-                                 name, s->cfg.mr_ddr,
-                                 offset, mapsize);
+        alias = g_new(MemoryRegion, 1);
+        memory_region_init_alias(alias, OBJECT(s), "noc-ddr-range",
+                                 s->cfg.mr_ddr, offset, mapsize);
 
         /* Map it onto the NoC MR.  */
-        memory_region_add_subregion(&s->mr_ps, addr_ranges[i].base,
-                                    &s->noc.mr_ddr_ranges[i]);
+        memory_region_add_subregion(&s->mr_ps, map->chan[i].addr, alias);
         offset += mapsize;
         size -= mapsize;
-        g_free(name);
     }
 }
 
+void versal_fdt_add_memory_nodes(Versal *s, uint64_t size)
+{
+    const struct VersalDDRMap *map = &versal_get_map(s)->ddr;
+    g_autofree char *node;
+    g_autofree uint64_t *reg;
+    int i;
+
+    reg = g_new(uint64_t, map->num_chan * 2);
+
+    for (i = 0; i < map->num_chan && size; i++) {
+        uint64_t mapsize;
+
+        mapsize = MIN(size, map->chan[i].size);
+
+        reg[i * 2] = cpu_to_be64(map->chan[i].addr);
+        reg[i * 2 + 1] = cpu_to_be64(mapsize);
+
+        size -= mapsize;
+    }
+
+    node = versal_fdt_add_subnode(s, "/memory", 0, "memory", sizeof("memory"));
+    qemu_fdt_setprop(s->cfg.fdt, node, "reg", reg, sizeof(uint64_t) * i * 2);
+}
+
 static void versal_unimp_area(Versal *s, const char *name,
                                 MemoryRegion *mr,
                                 hwaddr base, hwaddr size)
@@ -1692,7 +1717,7 @@ static void versal_realize(DeviceState *dev, Error **errp)
     versal_create_cfu(s, &map->cfu);
     versal_create_crl(s);
 
-    versal_map_ddr(s);
+    versal_map_ddr(s, &map->ddr);
     versal_unimp(s);
 
     /* Create the On Chip Memory (OCM).  */