dm: core: Export uclass_find_device_by_phandle()

[oweals/u-boot.git] / drivers / core / simple-bus.c

diff --git a/drivers/core/simple-bus.c b/drivers/core/simple-bus.c
index 3ea4d8230bddeb4d01073538e8aea32618354327..e16d8a9ff4a9b6bb111e391d70792d7481c8c84d 100644 (file)
--- a/drivers/core/simple-bus.c
+++ b/drivers/core/simple-bus.c
@@ -1,28 +1,58 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2014 Google, Inc
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <common.h>
 #include <dm.h>
-#include <dm/root.h>
 
-DECLARE_GLOBAL_DATA_PTR;
+struct simple_bus_plat {
+       u32 base;
+       u32 size;
+       u32 target;
+};
+
+fdt_addr_t simple_bus_translate(struct udevice *dev, fdt_addr_t addr)
+{
+       struct simple_bus_plat *plat = dev_get_uclass_platdata(dev);
+
+       if (addr >= plat->base && addr < plat->base + plat->size)
+               addr = (addr - plat->base) + plat->target;
+
+       return addr;
+}
 
 static int simple_bus_post_bind(struct udevice *dev)
 {
-       return dm_scan_fdt_node(dev, gd->fdt_blob, dev->of_offset, false);
+#if CONFIG_IS_ENABLED(OF_PLATDATA)
+       return 0;
+#else
+       u32 cell[3];
+       int ret;
+
+       ret = dev_read_u32_array(dev, "ranges", cell, ARRAY_SIZE(cell));
+       if (!ret) {
+               struct simple_bus_plat *plat = dev_get_uclass_platdata(dev);
+
+               plat->base = cell[0];
+               plat->target = cell[1];
+               plat->size = cell[2];
+       }
+
+       return dm_scan_fdt_dev(dev);
+#endif
 }
 
 UCLASS_DRIVER(simple_bus) = {
        .id             = UCLASS_SIMPLE_BUS,
        .name           = "simple_bus",
        .post_bind      = simple_bus_post_bind,
+       .per_device_platdata_auto_alloc_size = sizeof(struct simple_bus_plat),
 };
 
 static const struct udevice_id generic_simple_bus_ids[] = {
        { .compatible = "simple-bus" },
+       { .compatible = "simple-mfd" },
        { }
 };