[U-Boot] [PATCH 6/7] rpi: Determine PL011/Mini-UART availability at runtime

Alexander Graf agraf at suse.de
Tue Jan 16 13:47:40 UTC 2018


Firmware on the Raspberry Pi family of devices can dynamically configure either
the PL011, Mini-UART or no device at all to be routed to the user accessible
UART pins.

That means we need to always include both drivers, because we can never be sure
which of the two serial devices firmware actually chooses to use.

Signed-off-by: Alexander Graf <agraf at suse.de>
---
 include/configs/rpi.h | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/include/configs/rpi.h b/include/configs/rpi.h
index cab8661779..2c84cf9a49 100644
--- a/include/configs/rpi.h
+++ b/include/configs/rpi.h
@@ -75,12 +75,9 @@
 #define CONFIG_MISC_INIT_R
 #endif
 
-/* Console UART */
-#if defined (CONFIG_BCM2837) || defined(CONFIG_TARGET_RPI_0_W)
+/* Console UART, can be configured dynamically in config.txt */
 #define CONFIG_BCM283X_MU_SERIAL
-#else
 #define CONFIG_PL01X_SERIAL
-#endif
 
 /* Console configuration */
 #define CONFIG_SYS_CBSIZE		1024
-- 
2.12.3



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