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efi: stub: Pass EFI GOP information to U-Boot payload

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If UEFI BIOS has the graphics output protocol (GOP), let's pass its
information to U-Boot payload so that U-Boot can utilize it (eg:
an EFI framebuffer driver).

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Bin Meng
2018-06-12 08:36:21 -07:00
parent 252d41f1ae
commit d1fe992746
2 changed files with 50 additions and 0 deletions
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15
lib/efi/efi_stub.c
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@@ -275,6 +275,9 @@ efi_status_t EFIAPI efi_main(efi_handle_t image,
struct efi_boot_services *boot = sys_table->boottime;
struct efi_mem_desc *desc;
struct efi_entry_memmap map;
struct efi_gop *gop;
struct efi_entry_gopmode mode;
efi_guid_t efi_gop_guid = EFI_GOP_GUID;
efi_uintn_t key, desc_size, size;
efi_status_t ret;
u32 version;
@@ -313,6 +316,18 @@ efi_status_t EFIAPI efi_main(efi_handle_t image,
if (ret)
return ret;
ret = boot->locate_protocol(&efi_gop_guid, NULL, (void **)&gop);
if (ret) {
puts(" GOP unavailable\n");
} else {
mode.fb_base = gop->mode->fb_base;
mode.fb_size = gop->mode->fb_size;
mode.info_size = gop->mode->info_size;
add_entry_addr(priv, EFIET_GOP_MODE, &mode, sizeof(mode),
gop->mode->info,
sizeof(struct efi_gop_mode_info));
}
ret = boot->get_memory_map(&size, desc, &key, &desc_size, &version);
if (ret) {
printhex2(ret);