common: env_sf: Use CONFIG_SF_DEFAULT_xxx as the default value for CONFIG_ENV_SPI_xxx

[people/ms/u-boot.git] / lib / fdtdec.c

diff --git a/lib/fdtdec.c b/lib/fdtdec.c
index 4e619c49a2ffb2332a06c62906753b3b2eba3262..81f47ef2c7f4cf0b6ea6966a9455518fd89c5e89 100644 (file)
--- a/lib/fdtdec.c
+++ b/lib/fdtdec.c
@@ -1174,6 +1174,62 @@ int fdtdec_decode_display_timing(const void *blob, int parent, int index,
        return ret;
 }
 
+int fdtdec_setup_memory_size(void)
+{
+       int ret, mem;
+       struct fdt_resource res;
+
+       mem = fdt_path_offset(gd->fdt_blob, "/memory");
+       if (mem < 0) {
+               debug("%s: Missing /memory node\n", __func__);
+               return -EINVAL;
+       }
+
+       ret = fdt_get_resource(gd->fdt_blob, mem, "reg", 0, &res);
+       if (ret != 0) {
+               debug("%s: Unable to decode first memory bank\n", __func__);
+               return -EINVAL;
+       }
+
+       gd->ram_size = (phys_size_t)(res.end - res.start + 1);
+       debug("%s: Initial DRAM size %llx\n", __func__, (u64)gd->ram_size);
+
+       return 0;
+}
+
+#if defined(CONFIG_NR_DRAM_BANKS)
+int fdtdec_setup_memory_banksize(void)
+{
+       int bank, ret, mem;
+       struct fdt_resource res;
+
+       mem = fdt_path_offset(gd->fdt_blob, "/memory");
+       if (mem < 0) {
+               debug("%s: Missing /memory node\n", __func__);
+               return -EINVAL;
+       }
+
+       for (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) {
+               ret = fdt_get_resource(gd->fdt_blob, mem, "reg", bank, &res);
+               if (ret == -FDT_ERR_NOTFOUND)
+                       break;
+               if (ret != 0)
+                       return -EINVAL;
+
+               gd->bd->bi_dram[bank].start = (phys_addr_t)res.start;
+               gd->bd->bi_dram[bank].size =
+                       (phys_size_t)(res.end - res.start + 1);
+
+               debug("%s: DRAM Bank #%d: start = 0x%llx, size = 0x%llx\n",
+                     __func__, bank,
+                     (unsigned long long)gd->bd->bi_dram[bank].start,
+                     (unsigned long long)gd->bd->bi_dram[bank].size);
+       }
+
+       return 0;
+}
+#endif
+
 int fdtdec_setup(void)
 {
 #if CONFIG_IS_ENABLED(OF_CONTROL)