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| author | Manfred Huber <man.huber@arcor.de> | 2013-03-29 02:52:36 +0000 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2013-04-08 11:29:05 -0400 |
| commit | fd2aeac5606f8c706be5e07bead790c6cdee0f23 (patch) | |
| tree | 4607f0485dbd0a8bf0fb4233584886eb9a04e06e /README | |
| parent | 5aa014d613c561fb2e124acd60e4f6a34df17c21 (diff) | |
| download | u-boot-imx-fd2aeac5606f8c706be5e07bead790c6cdee0f23.zip u-boot-imx-fd2aeac5606f8c706be5e07bead790c6cdee0f23.tar.gz u-boot-imx-fd2aeac5606f8c706be5e07bead790c6cdee0f23.tar.bz2 | |
omap3_beagle: Flush UART3 xmit on enable if TEMT is broken
Flush UART3 xmit on enable if TEMT is broken
On some OMAP3 devices when UART3 is configured for boot mode before SPL starts
only THRE bit is set. We have to empty the transmitter before initialization
starts. This patch avoids the use of CONFIG_SYS_NS16550_BROKEN_TEMT.
Signed-off-by: Manfred Huber <man.huber@arcor.de>
Tested-by: Javier Martinez Canillas <javier@dowhile0.org>
Tested-by: Andreas Bießmann <andreas.devel@googlemail.com>
Diffstat (limited to 'README')
| -rw-r--r-- | README | 8 |
1 files changed, 0 insertions, 8 deletions
@@ -627,14 +627,6 @@ The following options need to be configured: boot loader that has already initialized the UART. Define this variable to flush the UART at init time. - CONFIG_SYS_NS16550_BROKEN_TEMT - - 16550 UART set the Transmitter Empty (TEMT) Bit when all output - has finished and the transmitter is totally empty. U-Boot waits - for this bit to be set to initialize the serial console. On some - broken platforms this bit is not set in SPL making U-Boot to - hang while waiting for TEMT. Define this option to avoid it. - - Console Interface: Depending on board, define exactly one serial port |