[U-Boot] [PATCH 2/3] x86: Add a reference to README.efi

[Simon Glass]

UEFI is commonly used on x86. Add a reference to U-Boot's support for this
in the x86 README.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

 doc/README.x86 | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/doc/README.x86 b/doc/README.x86
index 7d694b1..04e7a54 100644
--- a/doc/README.x86
+++ b/doc/README.x86
@@ -1035,10 +1035,21 @@ command from the OS.
 For other platform boards, ACPI support status can be checked by examining their
 board defconfig files to see if CONFIG_GENERATE_ACPI_TABLE is set to y.
 
+EFI Support
+-----------
+U-Boot supports booting as a 32-bit or 64-bit EFI payload, e.g. with UEFI.
+This is enabled with CONFIG_EFI_STUB. U-Boot can also run as an EFI
+application, with CONFIG_EFI_APP. The CONFIG_EFI_LOADER option, where U-Booot
+provides an EFI environment to the kernel (i.e. replaces UEFI completely but
+provides the same EFI run-time services) is not currently supports on x86.
+
+See README.efi for details of EFI support in U-Boot.
+
 TODO List
 ---------
 - Audio
 - Chrome OS verified boot
+- Support for CONFIG_EFI_LOADER
 
 References
 ----------
-- 
2.8.0.rc3.226.g39d4020