diff options
| -rw-r--r-- | include/fdtdec.h | 19 | ||||
| -rw-r--r-- | lib/fdtdec.c | 18 |
2 files changed, 31 insertions, 6 deletions
diff --git a/include/fdtdec.h b/include/fdtdec.h index 3e681099a8..ad00f79f20 100644 --- a/include/fdtdec.h +++ b/include/fdtdec.h @@ -956,6 +956,25 @@ int fdtdec_setup_mem_size_base_fdt(const void *blob); int fdtdec_setup_mem_size_base(void); /** + * fdtdec_setup_memory_banksize_fdt() - decode and populate gd->bd->bi_dram + * + * Decode the /memory 'reg' property to determine the address and size of the + * memory banks. Use this data to populate the global data board info with the + * phys address and size of memory banks. + * + * This function should be called from a boards dram_init_banksize(). This + * helper function allows for boards to query the device tree for memory bank + * information instead of hard coding the information in cases where it cannot + * be detected automatically. + * + * @param blob FDT blob + * + * @return 0 if OK, -EINVAL if the /memory node or reg property is missing or + * invalid + */ +int fdtdec_setup_memory_banksize_fdt(const void *blob); + +/** * fdtdec_setup_memory_banksize() - decode and populate gd->bd->bi_dram * * Decode the /memory 'reg' property to determine the address and size of the diff --git a/lib/fdtdec.c b/lib/fdtdec.c index 3f29e9d647..79915b59bd 100644 --- a/lib/fdtdec.c +++ b/lib/fdtdec.c @@ -1123,33 +1123,33 @@ int fdtdec_setup_mem_size_base(void) static int get_next_memory_node(const void *blob, int mem) { do { - mem = fdt_node_offset_by_prop_value(gd->fdt_blob, mem, + mem = fdt_node_offset_by_prop_value(blob, mem, "device_type", "memory", 7); } while (!fdtdec_get_is_enabled(blob, mem)); return mem; } -int fdtdec_setup_memory_banksize(void) +int fdtdec_setup_memory_banksize_fdt(const void *blob) { int bank, ret, mem, reg = 0; struct fdt_resource res; - mem = get_next_memory_node(gd->fdt_blob, -1); + mem = get_next_memory_node(blob, -1); 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", reg++, &res); + ret = fdt_get_resource(blob, mem, "reg", reg++, &res); if (ret == -FDT_ERR_NOTFOUND) { reg = 0; - mem = get_next_memory_node(gd->fdt_blob, mem); + mem = get_next_memory_node(blob, mem); if (mem == -FDT_ERR_NOTFOUND) break; - ret = fdt_get_resource(gd->fdt_blob, mem, "reg", reg++, &res); + ret = fdt_get_resource(blob, mem, "reg", reg++, &res); if (ret == -FDT_ERR_NOTFOUND) break; } @@ -1169,6 +1169,12 @@ int fdtdec_setup_memory_banksize(void) return 0; } + +int fdtdec_setup_memory_banksize(void) +{ + return fdtdec_setup_memory_banksize_fdt(gd->fdt_blob); + +} #endif #if CONFIG_IS_ENABLED(MULTI_DTB_FIT) |