As most platforms implement the PROM serial interface prom_putchar() add a simple bridge to allow re-using this code for zboot.
Signed-off-by: Alban Bedel <[email protected]> --- arch/mips/Kconfig | 4 ++++ arch/mips/boot/compressed/Makefile | 1 + arch/mips/boot/compressed/uart-prom.c | 7 +++++++ 3 files changed, 12 insertions(+) create mode 100644 arch/mips/boot/compressed/uart-prom.c diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 71683a8..ef1d665 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -1756,6 +1756,10 @@ config SYS_SUPPORTS_ZBOOT_UART16550 bool select SYS_SUPPORTS_ZBOOT +config SYS_SUPPORTS_ZBOOT_UART_PROM + bool + select SYS_SUPPORTS_ZBOOT + config CPU_LOONGSON2 bool select CPU_SUPPORTS_32BIT_KERNEL diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile index e66b2c6..4eff1ef 100644 --- a/arch/mips/boot/compressed/Makefile +++ b/arch/mips/boot/compressed/Makefile @@ -35,6 +35,7 @@ vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.o ifdef CONFIG_DEBUG_ZBOOT vmlinuzobjs-$(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 endif diff --git a/arch/mips/boot/compressed/uart-prom.c b/arch/mips/boot/compressed/uart-prom.c new file mode 100644 index 0000000..1c3d51b --- /dev/null +++ b/arch/mips/boot/compressed/uart-prom.c @@ -0,0 +1,7 @@ + +extern void prom_putchar(unsigned char ch); + +void putc(char c) +{ + prom_putchar(c); +} -- 2.0.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
