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authorSimon Glass <sjg@chromium.org>2015-02-07 10:47:30 -0700
committerHans de Goede <hdegoede@redhat.com>2015-02-16 20:15:09 +0100
commit942cb0b6a29f74507adeb0bce7ff7f23f69faf84 (patch)
treedb87608a735d5920489af93a7d3c8afd60f8dfc2 /board/sunxi
parentc01c71bc16d2836c3ff81af54529dab0686bca00 (diff)
sunxi: Normalise FEL support
Make sunxi's FEL code fit with the normal U-Boot boot sequence instead of creating its own. There are some #ifdefs required in start.S. Future work will hopefully remove these. This series is available at u-boot-dm, branch sunxi-working. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'board/sunxi')
-rw-r--r--board/sunxi/Kconfig10
1 files changed, 10 insertions, 0 deletions
diff --git a/board/sunxi/Kconfig b/board/sunxi/Kconfig
index 4a2158988fc..3eab81fd12b 100644
--- a/board/sunxi/Kconfig
+++ b/board/sunxi/Kconfig
@@ -149,6 +149,16 @@ config SPL_FEL
bool "SPL/FEL mode support"
depends on SPL
default n
+ help
+ This enables support for Fast Early Loader (FEL) mode. This
+ allows U-Boot to be loaded to the board over USB by the on-chip
+ boot rom. U-Boot should be sent in two parts: SPL first, with
+ 'fel write 0x2000 u-boot-spl.bin; fel exe 0x2000' then U-Boot with
+ 'fel write 0x4a000000 u-boot.bin; fel exe 0x4a000000'. This option
+ shrinks the amount of SRAM available to SPL, so only enable it if
+ you need FEL. Note that enabling this option only allows FEL to be
+ used; it is still possible to boot U-Boot from boot media. U-Boot
+ SPL detects when it is being loaded using FEL.
config UART0_PORT_F
bool "UART0 on MicroSD breakout board"