MIPS: Alchemy: prom_putchar is board dependent
This patch replaces the general alchemy prom_putchar() implementation
in favor of board-specific versions: The UART where the output of
prom_putchar is directed to really depends on the board, the current
implementation hardcodes this on a per-SoC basis which is just wrong.
So a generic uart tx function is provided in the alchemy headers,
and the boards can provide their own prom_putchar with custom
destination uart, and all in-kernel alchemy boards support
early printk.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/alchemy/mtx-1/init.c b/arch/mips/alchemy/mtx-1/init.c
index 5e871c8..f8d2557 100644
--- a/arch/mips/alchemy/mtx-1/init.c
+++ b/arch/mips/alchemy/mtx-1/init.c
@@ -32,6 +32,7 @@
#include <linux/init.h>
#include <asm/bootinfo.h>
+#include <asm/mach-au1x00/au1000.h>
#include <prom.h>
@@ -58,3 +59,8 @@
strict_strtoul(memsize_str, 0, &memsize);
add_memory_region(0, memsize, BOOT_MEM_RAM);
}
+
+void prom_putchar(unsigned char c)
+{
+ alchemy_uart_putchar(UART0_PHYS_ADDR, c);
+}