diff options
Diffstat (limited to 'drivers/firmware/efi/fdtparams.c')
| -rw-r--r-- | drivers/firmware/efi/fdtparams.c | 30 |
1 files changed, 23 insertions, 7 deletions
diff --git a/drivers/firmware/efi/fdtparams.c b/drivers/firmware/efi/fdtparams.c index 3de343faffc6..7a384b307c56 100644 --- a/drivers/firmware/efi/fdtparams.c +++ b/drivers/firmware/efi/fdtparams.c @@ -18,6 +18,14 @@ sizeof_field(struct efi_fdt_params, field) \ } +struct efi_fdt_params { + u64 system_table; + u64 mmap; + u32 mmap_size; + u32 desc_size; + u32 desc_ver; +}; + struct params { const char name[32]; const char propname[32]; @@ -121,22 +129,30 @@ static int __init fdt_find_uefi_params(unsigned long node, const char *uname, return 0; } -int __init efi_get_fdt_params(struct efi_fdt_params *params) +u64 __init efi_get_fdt_params(struct efi_memory_map_data *memmap) { + struct efi_fdt_params params; struct param_info info; int ret; pr_info("Getting EFI parameters from FDT:\n"); info.found = 0; - info.params = params; + info.params = ¶ms; ret = of_scan_flat_dt(fdt_find_uefi_params, &info); - if (!info.found) + if (!info.found) { pr_info("UEFI not found.\n"); - else if (!ret) - pr_err("Can't find '%s' in device tree!\n", - info.missing); + return 0; + } else if (!ret) { + pr_err("Can't find '%s' in device tree!\n", info.missing); + return 0; + } + + memmap->desc_version = params.desc_ver; + memmap->desc_size = params.desc_size; + memmap->size = params.mmap_size; + memmap->phys_map = params.mmap; - return ret; + return params.system_table; } |