On ARM64 secure OS can run as 64bit or 32bit that's why it is necessary to record information about architecture that other code can read it and properly pass it to TF-A and start in 64bit or 32bit mode.
Signed-off-by: Michal Simek michal.simek@xilinx.com ---
common/fdt_support.c | 4 +++- common/spl/spl_fit.c | 3 ++- include/fdt_support.h | 3 ++- 3 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/common/fdt_support.c b/common/fdt_support.c index a9a32df1e78f..240f1e57d135 100644 --- a/common/fdt_support.c +++ b/common/fdt_support.c @@ -594,7 +594,7 @@ void fdt_fixup_ethernet(void *fdt)
int fdt_record_loadable(void *blob, u32 index, const char *name, uintptr_t load_addr, u32 size, uintptr_t entry_point, - const char *type, const char *os) + const char *type, const char *os, const char *arch) { int err, node;
@@ -622,6 +622,8 @@ int fdt_record_loadable(void *blob, u32 index, const char *name, fdt_setprop_string(blob, node, "type", type); if (os) fdt_setprop_string(blob, node, "os", os); + if (arch) + fdt_setprop_string(blob, node, "arch", arch);
return node; } diff --git a/common/spl/spl_fit.c b/common/spl/spl_fit.c index caddf5119679..f6c475315ed6 100644 --- a/common/spl/spl_fit.c +++ b/common/spl/spl_fit.c @@ -480,7 +480,8 @@ static int spl_fit_record_loadable(const struct spl_fit_info *ctx, int index, ret = fdt_record_loadable(blob, index, name, image->load_addr, image->size, image->entry_point, fdt_getprop(ctx->fit, node, "type", NULL), - fdt_getprop(ctx->fit, node, "os", NULL)); + fdt_getprop(ctx->fit, node, "os", NULL), + fdt_getprop(ctx->fit, node, "arch", NULL)); return ret; }
diff --git a/include/fdt_support.h b/include/fdt_support.h index 1e4dbc0a8f65..f6f46bb8e9ce 100644 --- a/include/fdt_support.h +++ b/include/fdt_support.h @@ -160,11 +160,12 @@ static inline void fdt_fixup_crypto_node(void *blob, int sec_rev) {} * @param entry_point entry point (if specified, otherwise pass -1) * @param type type (if specified, otherwise pass NULL) * @param os os-type (if specified, otherwise pass NULL) + * @param arch architecture (if specified, otherwise pass NULL) * @return 0 if ok, or -1 or -FDT_ERR_... on error */ int fdt_record_loadable(void *blob, u32 index, const char *name, uintptr_t load_addr, u32 size, uintptr_t entry_point, - const char *type, const char *os); + const char *type, const char *os, const char *arch);
#ifdef CONFIG_PCI #include <pci.h>