efi_loader: pass address to efi_install_fdt()
As part of moving the parsing of command line arguments to do_bootefi()
call efi_install_fdt() with the address of the device tree instead of a
string.
If the address is EFI_FDT_USE_INTERNAL (= 0), the internal device tree
is used.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
diff --git a/cmd/bootefi.c b/cmd/bootefi.c
index f613cce..2b190a3 100644
--- a/cmd/bootefi.c
+++ b/cmd/bootefi.c
@@ -196,40 +196,39 @@
#endif /* !CONFIG_IS_ENABLED(GENERATE_ACPI_TABLE) */
/**
- * efi_install_fdt() - install fdt passed by a command argument
+ * efi_install_fdt() - install device tree
*
- * If fdt_opt is available, the device tree located at that memory address will
+ * If fdt_addr is available, the device tree located at that memory address will
* will be installed as configuration table, otherwise the device tree located
* at the address indicated by environment variable fdtcontroladdr will be used.
*
- * On architectures (x86) using ACPI tables device trees shall not be installed
- * as configuration table.
+ * On architectures using ACPI tables device trees shall not be installed as
+ * configuration table.
*
- * @fdt_opt: pointer to argument
+ * @fdt_addr: address of device tree or EFI_FDT_USE_INTERNAL to use the
+ * internal device tree as indicated by environment variable
+ * fdtcontroladdr
* Return: status code
*/
-static efi_status_t efi_install_fdt(const char *fdt_opt)
+static efi_status_t efi_install_fdt(uintptr_t fdt_addr)
{
/*
* The EBBR spec requires that we have either an FDT or an ACPI table
* but not both.
*/
#if CONFIG_IS_ENABLED(GENERATE_ACPI_TABLE)
- if (fdt_opt) {
+ if (fdt_addr) {
printf("ERROR: can't have ACPI table and device tree.\n");
return EFI_LOAD_ERROR;
}
#else
- unsigned long fdt_addr;
void *fdt;
bootm_headers_t img = { 0 };
efi_status_t ret;
- if (fdt_opt) {
- fdt_addr = simple_strtoul(fdt_opt, NULL, 16);
- if (!fdt_addr)
- return EFI_INVALID_PARAMETER;
- } else {
+ if (fdt_addr == EFI_FDT_USE_INTERNAL) {
+ const char *fdt_opt;
+
/* Look for device tree that is already installed */
if (get_config_table(&efi_guid_fdt))
return EFI_SUCCESS;
@@ -556,6 +555,7 @@
static int do_bootefi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
efi_status_t ret;
+ uintptr_t fdt_addr;
if (argc < 2)
return CMD_RET_USAGE;
@@ -568,7 +568,11 @@
return CMD_RET_FAILURE;
}
- ret = efi_install_fdt(argc > 2 ? argv[2] : NULL);
+ if (argc > 2)
+ fdt_addr = simple_strtoul(argv[2], NULL, 16);
+ else
+ fdt_addr = EFI_FDT_USE_INTERNAL;
+ ret = efi_install_fdt(fdt_addr);
if (ret == EFI_INVALID_PARAMETER)
return CMD_RET_USAGE;
else if (ret != EFI_SUCCESS)