sunxi: Fix CONFIG_UART0_PORT_F build and add it to menuconfig
The CONFIG_UART0_PORT_F option has been supported since
http://git.denx.de/?p=u-boot.git;a=commit;h=ff2b47f6a9cc1025
This option is primarily useful only for low level u-boot debugging
on tablets, where normal UART0 is difficult to access and requires
device disassembly and/or soldering.
This patch now allows it to be selected from menuconfig. A dependency on
SPL_FEL is added because u-boot does not support booting from NAND yet
and also booting from SD card is impossible when a MicroSD breakout board
is plugged into the SD slot.
Additionally a compilation problem is fixed:
common/spl/built-in.o: In function `spl_mmc_load_image':
/tmp/u-boot-sunxi/common/spl/spl_mmc.c:94: undefined reference to `mmc_initialize'
/tmp/u-boot-sunxi/common/spl/spl_mmc.c:96: undefined reference to `find_mmc_device'
/tmp/u-boot-sunxi/common/spl/spl_mmc.c:104: undefined reference to `mmc_init'
scripts/Makefile.spl:206: recipe for target 'spl/u-boot-spl' failed
Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
diff --git a/board/sunxi/Kconfig b/board/sunxi/Kconfig
index 9bb593a..40adcfb 100644
--- a/board/sunxi/Kconfig
+++ b/board/sunxi/Kconfig
@@ -177,6 +177,18 @@
depends on SPL
default n
+config UART0_PORT_F
+ bool "UART0 on MicroSD breakout board"
+ depends on SPL_FEL
+ default n
+ ---help---
+ Repurpose the SD card slot for getting access to the UART0 serial
+ console. Primarily useful only for low level u-boot debugging on
+ tablets, where normal UART0 is difficult to access and requires
+ device disassembly and/or soldering. As the SD card can't be used
+ at the same time, the system can be only booted in the FEL mode.
+ Only enable this if you really know what you are doing.
+
config FDTFILE
string "Default fdtfile env setting for this board"
diff --git a/include/configs/sunxi-common.h b/include/configs/sunxi-common.h
index 3f890b2..f7e87a2 100644
--- a/include/configs/sunxi-common.h
+++ b/include/configs/sunxi-common.h
@@ -160,7 +160,10 @@
#define CONFIG_SPL_MAX_SIZE 0x5fe0 /* 24KB on sun4i/sun7i */
#define CONFIG_SPL_LIBDISK_SUPPORT
+
+#if !defined(CONFIG_UART0_PORT_F)
#define CONFIG_SPL_MMC_SUPPORT
+#endif
#define CONFIG_SPL_LDSCRIPT "arch/arm/cpu/armv7/sunxi/u-boot-spl.lds"
diff --git a/scripts/multiconfig.sh b/scripts/multiconfig.sh
index 70f3a5d..366e8fa 100755
--- a/scripts/multiconfig.sh
+++ b/scripts/multiconfig.sh
@@ -168,7 +168,7 @@
echo "$progname: Cannot felconfig a non-sunxi or non-SPL platform" >&2
exit 1
fi
- sed -i -e 's/\# CONFIG_SPL_FEL is not set/CONFIG_SPL_FEL=y/g' \
+ sed -i -e 's/\# CONFIG_SPL_FEL is not set/CONFIG_SPL_FEL=y\nCONFIG_UART0_PORT_F=n/g' \
.config spl/.config
}