diff options
| author | Guenter Roeck <linux@roeck-us.net> | 2016-11-16 17:30:21 -0800 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2016-11-28 11:32:34 +0000 |
| commit | b77257d7bae26a0fca6a90af88d54ee2c45f5b61 (patch) | |
| tree | 89f1cb8680dd924838a1fda7271677859bb17f41 /hw | |
| parent | 6aa3a61657a60ad2c422c720bfaa31589a6e7334 (diff) | |
arm: Create /chosen and /memory devicetree nodes if necessary
While customary, the /chosen and /memory devicetree nodes do not have to
exist. Create if necessary. Also create the /memory/device_type property
if needed.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Message-id: 1479346221-18474-1-git-send-email-linux@roeck-us.net
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/arm/boot.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/hw/arm/boot.c b/hw/arm/boot.c index 942416d95a..ff621e4b6a 100644 --- a/hw/arm/boot.c +++ b/hw/arm/boot.c @@ -9,6 +9,7 @@ #include "qemu/osdep.h" #include "qapi/error.h" +#include <libfdt.h> #include "hw/hw.h" #include "hw/arm/arm.h" #include "hw/arm/linux-boot-if.h" @@ -486,6 +487,17 @@ static int load_dtb(hwaddr addr, const struct arm_boot_info *binfo, g_free(nodename); } } else { + Error *err = NULL; + + rc = fdt_path_offset(fdt, "/memory"); + if (rc < 0) { + qemu_fdt_add_subnode(fdt, "/memory"); + } + + if (!qemu_fdt_getprop(fdt, "/memory", "device_type", NULL, &err)) { + qemu_fdt_setprop_string(fdt, "/memory", "device_type", "memory"); + } + rc = qemu_fdt_setprop_sized_cells(fdt, "/memory", "reg", acells, binfo->loader_start, scells, binfo->ram_size); @@ -495,6 +507,11 @@ static int load_dtb(hwaddr addr, const struct arm_boot_info *binfo, } } + rc = fdt_path_offset(fdt, "/chosen"); + if (rc < 0) { + qemu_fdt_add_subnode(fdt, "/chosen"); + } + if (binfo->kernel_cmdline && *binfo->kernel_cmdline) { rc = qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", binfo->kernel_cmdline); |