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Commit b3f0a250 authored by Alban Bedel's avatar Alban Bedel Committed by Ralf Baechle
Browse files

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: default avatarAlban 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: default avatarRalf Baechle <ralf@linux-mips.org>
parent ea3a7085

arch/mips/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -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.

arch/mips/boot/compressed/Makefile

+5 −0
Original line number Diff line number Diff line
@@ -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