aboutsummaryrefslogtreecommitdiffstats
path: root/roms/u-boot/include/dm/platdata.h
diff options
context:
space:
mode:
Diffstat (limited to 'roms/u-boot/include/dm/platdata.h')
-rw-r--r--roms/u-boot/include/dm/platdata.h74
1 files changed, 74 insertions, 0 deletions
diff --git a/roms/u-boot/include/dm/platdata.h b/roms/u-boot/include/dm/platdata.h
new file mode 100644
index 000000000..4efb1dfe1
--- /dev/null
+++ b/roms/u-boot/include/dm/platdata.h
@@ -0,0 +1,74 @@
+/* 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>
+ */
+
+#ifndef _DM_PLATDATA_H
+#define _DM_PLATDATA_H
+
+#include <linker_lists.h>
+
+/**
+ * struct driver_info - Information required to instantiate a device
+ *
+ * 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 *plat;
+#if CONFIG_IS_ENABLED(OF_PLATDATA)
+ unsigned short plat_size;
+ short parent_idx;
+#endif
+};
+
+#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
+
+/**
+ * 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