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authorAlban Bedel <albeu@free.fr>2016-01-26 09:38:29 +0100
committerRalf Baechle <ralf@linux-mips.org>2016-05-13 14:01:37 +0200
commitb3f0a250d6eda645cee719cc11ea70e28f62145c (patch)
treecdc2a6534cca5803796f890490b580fd40280035 /arch/mips
parentea3a7085bfa85ad52118822df73123b7e7056dab (diff)
MIPS: ath79: Add zboot debug serial support
Reuse the early printk code to support the serial in zboot. We copy early_printk.c instead of referencing it because we need to build a different object file for the normal kernel and zboot. Signed-off-by: Alban Bedel <albeu@free.fr> Cc: Andrew Bresticker <abrestic@chromium.org> Cc: Alex Smith <alex.smith@imgtec.com> Cc: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/12234/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/Kconfig2
-rw-r--r--arch/mips/boot/compressed/Makefile5
2 files changed, 6 insertions, 1 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 04c5e9c28fba..c049c0667559 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -137,7 +137,7 @@ config ATH79
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_BIG_ENDIAN
select SYS_SUPPORTS_MIPS16
- select SYS_SUPPORTS_ZBOOT
+ select SYS_SUPPORTS_ZBOOT_UART_PROM
select USE_OF
help
Support for the Atheros AR71XX/AR724X/AR913X SoCs.
diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile
index 309d2ad67e4d..90aca95fe314 100644
--- a/arch/mips/boot/compressed/Makefile
+++ b/arch/mips/boot/compressed/Makefile
@@ -37,8 +37,13 @@ vmlinuzobjs-$(CONFIG_DEBUG_ZBOOT) += $(obj)/dbg.o
vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o
vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART_PROM) += $(obj)/uart-prom.o
vmlinuzobjs-$(CONFIG_MIPS_ALCHEMY) += $(obj)/uart-alchemy.o
+vmlinuzobjs-$(CONFIG_ATH79) += $(obj)/uart-ath79.o
endif
+extra-y += uart-ath79.c
+$(obj)/uart-ath79.c: $(srctree)/arch/mips/ath79/early_printk.c
+ $(call cmd,shipped)
+
vmlinuzobjs-$(CONFIG_KERNEL_XZ) += $(obj)/ashldi3.o $(obj)/bswapsi.o
extra-y += ashldi3.c bswapsi.c