Signed-off-by: Philippe Mathieu-Daudé <f4...@amsat.org> --- include/hw/sysbus-fdt.h | 18 ++++++++++++++++++ hw/core/sysbus-fdt.c | 30 ++++++++++++++++++++++++++++++ hw/core/Makefile.objs | 1 + 3 files changed, 49 insertions(+) create mode 100644 include/hw/sysbus-fdt.h create mode 100644 hw/core/sysbus-fdt.c
diff --git a/include/hw/sysbus-fdt.h b/include/hw/sysbus-fdt.h new file mode 100644 index 0000000000..21f42dbbad --- /dev/null +++ b/include/hw/sysbus-fdt.h @@ -0,0 +1,18 @@ +/* + * Flattened Device Tree alias helpers + * + * Copyright (C) 2018 Philippe Mathieu-Daudé <f4...@amsat.org> + * + * This work is licensed under the terms of the GNU GPL, version 2 or + * (at your option) any later version. See the COPYING file in the + * top-level directory. + */ +#ifndef HW_SYSBUS_FDT_H +#define HW_SYSBUS_FDT_H + +void type_register_fdt_alias(const char *name, const char *alias); +void type_register_fdt_aliases(const char *name, const char **aliases); + +const char *type_resolve_fdt_alias(const char *alias); + +#endif /* HW_SYSBUS_FDT_H */ diff --git a/hw/core/sysbus-fdt.c b/hw/core/sysbus-fdt.c new file mode 100644 index 0000000000..0d817ba230 --- /dev/null +++ b/hw/core/sysbus-fdt.c @@ -0,0 +1,30 @@ +#include "qemu/osdep.h" +#include "hw/sysbus-fdt.h" + +static GHashTable *fdt_aliases(void) +{ + static GHashTable *fdt_aliases_singleton; + + if (!fdt_aliases_singleton) { + fdt_aliases_singleton = g_hash_table_new(g_str_hash, g_str_equal); + } + return fdt_aliases_singleton; +} + +void type_register_fdt_alias(const char *name, const char *alias) +{ + g_hash_table_insert(fdt_aliases(), (gpointer)name, (gpointer)name); + g_hash_table_insert(fdt_aliases(), (gpointer)alias, (gpointer)name); +} + +void type_register_fdt_aliases(const char *name, const char **aliases) +{ + for (; *aliases; aliases++) { + type_register_fdt_alias(name, *aliases); + } +} + +const char *type_resolve_fdt_alias(const char *alias) +{ + return g_hash_table_lookup(fdt_aliases(), alias); +} diff --git a/hw/core/Makefile.objs b/hw/core/Makefile.objs index f8d7a4aaed..f56f0755a5 100644 --- a/hw/core/Makefile.objs +++ b/hw/core/Makefile.objs @@ -11,6 +11,7 @@ common-obj-$(CONFIG_EMPTY_SLOT) += empty_slot.o common-obj-$(CONFIG_XILINX_AXI) += stream.o common-obj-$(CONFIG_PTIMER) += ptimer.o common-obj-$(CONFIG_SOFTMMU) += sysbus.o +common-obj-$(CONFIG_SOFTMMU) += sysbus-fdt.o common-obj-$(CONFIG_SOFTMMU) += machine.o common-obj-$(CONFIG_SOFTMMU) += loader.o common-obj-$(CONFIG_FITLOADER) += loader-fit.o -- 2.15.1