diff options
| author | Simon Glass <sjg@chromium.org> | 2015-08-02 18:07:21 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-08-06 07:44:30 -0600 |
| commit | bbbe55f6f25e686ad799c2a70aa941eeb276adb6 (patch) | |
| tree | 7051f4e1c1b12a348722b1ad945a140c0e178720 /configs | |
| parent | 74356d7fb1715db41dcf5530108cc0db82f278d7 (diff) | |
| download | talos-obmc-uboot-bbbe55f6f25e686ad799c2a70aa941eeb276adb6.tar.gz talos-obmc-uboot-bbbe55f6f25e686ad799c2a70aa941eeb276adb6.zip | |
x86: Enable debug UART for Minnowmax
Enable the debug UART and emit a single 'a' early in the init sequence to
show that it is working.
Unfortunately the debug UART implementation needs a stack to work. I cannot
seem to remove this limitation as the absolute 'jmp %eax' instruction goes
off into the weeds.
So this means that the character output cannot be any earlier than
car_init_ret, where memory is available for a stack.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
Diffstat (limited to 'configs')
| -rw-r--r-- | configs/minnowmax_defconfig | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/configs/minnowmax_defconfig b/configs/minnowmax_defconfig index e98f5eb5ce..a67597d8d6 100644 --- a/configs/minnowmax_defconfig +++ b/configs/minnowmax_defconfig @@ -24,3 +24,7 @@ CONFIG_FRAMEBUFFER_VESA_MODE_11A=y CONFIG_DM_RTC=y CONFIG_USE_PRIVATE_LIBGCC=y CONFIG_SYS_VSNPRINTF=y +CONFIG_DEBUG_UART=y +CONFIG_DEBUG_UART_NS16550=y +CONFIG_DEBUG_UART_BASE=0x3f8 +CONFIG_DEBUG_UART_CLOCK=1843200 |
