diff options
| author | Simon Glass <sjg@chromium.org> | 2018-07-12 15:26:07 -0600 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2018-07-16 07:41:14 +0000 |
| commit | 46255f7ee4728e0ee02c0cb8d9edeeee1a8e5361 (patch) | |
| tree | 61f626813cc3f3f9f4400b7c00bbcaef552faf68 /src/Kconfig | |
| parent | 457253cdc6cac0eeef47c2dd4fbd2f93e1d34ef2 (diff) | |
Kconfig: Make the EM100 config option common
This applied to AMD devices as well as Intel, although the mechanism is
different. Move the option to a common place.
BUG=b:111363976
TEST=USE=em100-mode emerge-reef coreboot
See that a message appears:
* Enabling em100 mode (slow SPI flash)
Change-Id: Iea437bdf42e7bc49b1d28c812bfc6128e3eb68bd
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-on: https://review.coreboot.org/27467
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'src/Kconfig')
| -rw-r--r-- | src/Kconfig | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/Kconfig b/src/Kconfig index 24b21060b6..bce3e32884 100644 --- a/src/Kconfig +++ b/src/Kconfig @@ -1024,6 +1024,24 @@ config DEBUG_ADA_CODE Add the compiler switch `-gnata` to compile code guarded by `pragma Debug`. +config HAVE_EM100_SUPPORT + bool "Platform can support the Dediprog EM100 SPI emulator" + help + This is enabled by platforms which can support using the EM100. + +config EM100 + bool "Configure image for EM100 usage" + depends on HAVE_EM100_SUPPORT + help + The Dediprog EM100 SPI emulator allows fast loading of new SPI images + over USB. However it only supports a maximum SPI clock of 20MHz and + single data output. Enable this option to use a 20MHz SPI clock and + disable "Dual Output Fast Read" Support. + + On AMD platforms this changes the SPI speed at run-time if the + mainboard code supports this. On supported Intel platforms this works + by changing the settings in the descriptor.bin file. + endmenu |