[U-Boot] Fix for ns16550 driver hanging on OMAP4
Gregoire Gentil
gregoire at gentil.com
Mon Nov 10 20:04:10 CET 2014
Here is a patch to apply the same fix on OMAP4 boards as on OMAP3, in
order to prevent ns16550 hanging during SPL boot,
Grégoire
diff --git a/drivers/serial/ns16550.c b/drivers/serial/ns16550.c
index 8f05191..a1d3781 100644
--- a/drivers/serial/ns16550.c
+++ b/drivers/serial/ns16550.c
@@ -132,9 +132,9 @@ static void NS16550_setbrg(NS16550_t com_port, int
baud_divisor)
void NS16550_init(NS16550_t com_port, int baud_divisor)
{
-#if (defined(CONFIG_SPL_BUILD) && defined(CONFIG_OMAP34XX))
+#if (defined(CONFIG_SPL_BUILD) && (defined(CONFIG_OMAP34XX) ||
defined(CONFIG_OMAP44XX)))
/*
- * On some OMAP3 devices when UART3 is configured for boot mode
before
+ * On some OMAP3/OMAP4 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.
*/
Grégoire
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