+/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (c) 2013 Google, Inc
*
* (C) Copyright 2012
* Pavel Herrmann <morpheus.ibis@gmail.com>
* Marek Vasut <marex@denx.de>
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _DM_PLATDATA_H
#define _DM_PLATDATA_H
+#include <linker_lists.h>
+
/**
* struct driver_info - Information required to instantiate a device
*
- * @name: Device name
- * @platdata: Driver-specific platform data
+ * NOTE: Avoid using this except in extreme circumstances, where device tree
+ * is not feasible (e.g. serial driver in SPL where <8KB of SRAM is
+ * available). U-Boot's driver model uses device tree for configuration.
+ *
+ * @name: Driver name
+ * @plat: Driver-specific platform data
+ * @plat_size: Size of platform data structure
+ * @parent_idx: Index of the parent driver_info structure
*/
struct driver_info {
const char *name;
- const void *platdata;
+ const void *plat;
+#if CONFIG_IS_ENABLED(OF_PLATDATA)
+ unsigned short plat_size;
+ short parent_idx;
+#endif
};
-#define U_BOOT_DEVICE(__name) \
+#if CONFIG_IS_ENABLED(OF_PLATDATA)
+#define driver_info_parent_id(driver_info) driver_info->parent_idx
+#else
+#define driver_info_parent_id(driver_info) (-1)
+#endif
+
+/**
+ * struct driver_rt - runtime information set up by U-Boot
+ *
+ * There is one of these for every driver_info in the linker list, indexed by
+ * the driver_info idx value.
+ *
+ * @dev: Device created from this idx
+ */
+struct driver_rt {
+ struct udevice *dev;
+};
+
+/*
+ * NOTE: Avoid using these except in extreme circumstances, where device tree
+ * is not feasible (e.g. serial driver in SPL where <8KB of SRAM is
+ * available). U-Boot's driver model uses device tree for configuration.
+ *
+ * When of-platdata is in use, U_BOOT_DRVINFO() cannot be used outside of the
+ * dt-plat.c file created by dtoc
+ */
+#if CONFIG_IS_ENABLED(OF_PLATDATA) && !defined(DT_PLAT_C)
+#define U_BOOT_DRVINFO(__name) _Static_assert(false, \
+ "Cannot use U_BOOT_DRVINFO with of-platdata. Please use devicetree instead")
+#else
+#define U_BOOT_DRVINFO(__name) \
ll_entry_declare(struct driver_info, __name, driver_info)
+#endif
+
+/* Declare a list of devices. The argument is a driver_info[] array */
+#define U_BOOT_DRVINFOS(__name) \
+ ll_entry_declare_list(struct driver_info, __name, driver_info)
#endif