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>

1 files changed, 14 insertions, 0 deletions

diff --git a/arch/mips/alchemy/Kconfig b/arch/mips/alchemy/Kconfig
index 00b498e97c83..22f4ff5103c1 100644
--- a/arch/mips/alchemy/Kconfig
+++ b/arch/mips/alchemy/Kconfig
@@ -20,12 +20,14 @@ config MIPS_MTX1
         select HW_HAS_PCI
         select SOC_AU1500
         select SYS_SUPPORTS_LITTLE_ENDIAN
+        select SYS_HAS_EARLY_PRINTK
 
 config MIPS_BOSPORUS
         bool "Alchemy Bosporus board"
         select SOC_AU1500
         select DMA_NONCOHERENT
         select SYS_SUPPORTS_LITTLE_ENDIAN
+        select SYS_HAS_EARLY_PRINTK
 
 config MIPS_DB1000
         bool "Alchemy DB1000 board"
@@ -33,12 +35,14 @@ config MIPS_DB1000
         select DMA_NONCOHERENT
         select HW_HAS_PCI
         select SYS_SUPPORTS_LITTLE_ENDIAN
+        select SYS_HAS_EARLY_PRINTK
 
 config MIPS_DB1100
         bool "Alchemy DB1100 board"
         select SOC_AU1100
         select DMA_NONCOHERENT
         select SYS_SUPPORTS_LITTLE_ENDIAN
+        select SYS_HAS_EARLY_PRINTK
 
 config MIPS_DB1200
         bool "Alchemy DB1200 board"
@@ -46,6 +50,7 @@ config MIPS_DB1200
         select DMA_COHERENT
         select MIPS_DISABLE_OBSOLETE_IDE
         select SYS_SUPPORTS_LITTLE_ENDIAN
+        select SYS_HAS_EARLY_PRINTK
 
 config MIPS_DB1500
         bool "Alchemy DB1500 board"
@@ -55,6 +60,7 @@ config MIPS_DB1500
         select MIPS_DISABLE_OBSOLETE_IDE
         select SYS_SUPPORTS_BIG_ENDIAN
         select SYS_SUPPORTS_LITTLE_ENDIAN
+        select SYS_HAS_EARLY_PRINTK
 
 config MIPS_DB1550
         bool "Alchemy DB1550 board"
@@ -63,12 +69,14 @@ config MIPS_DB1550
         select DMA_NONCOHERENT
         select MIPS_DISABLE_OBSOLETE_IDE
         select SYS_SUPPORTS_LITTLE_ENDIAN
+        select SYS_HAS_EARLY_PRINTK
 
 config MIPS_MIRAGE
         bool "Alchemy Mirage board"
         select DMA_NONCOHERENT
         select SOC_AU1500
         select SYS_SUPPORTS_LITTLE_ENDIAN
+        select SYS_HAS_EARLY_PRINTK
 
 config MIPS_PB1000
         bool "Alchemy PB1000 board"
@@ -77,6 +85,7 @@ config MIPS_PB1000
         select HW_HAS_PCI
         select SWAP_IO_SPACE
         select SYS_SUPPORTS_LITTLE_ENDIAN
+        select SYS_HAS_EARLY_PRINTK
 
 config MIPS_PB1100
         bool "Alchemy PB1100 board"
@@ -85,6 +94,7 @@ config MIPS_PB1100
         select HW_HAS_PCI
         select SWAP_IO_SPACE
         select SYS_SUPPORTS_LITTLE_ENDIAN
+        select SYS_HAS_EARLY_PRINTK
 
 config MIPS_PB1200
         bool "Alchemy PB1200 board"
@@ -92,6 +102,7 @@ config MIPS_PB1200
         select DMA_NONCOHERENT
         select MIPS_DISABLE_OBSOLETE_IDE
         select SYS_SUPPORTS_LITTLE_ENDIAN
+        select SYS_HAS_EARLY_PRINTK
 
 config MIPS_PB1500
         bool "Alchemy PB1500 board"
@@ -99,6 +110,7 @@ config MIPS_PB1500
         select DMA_NONCOHERENT
         select HW_HAS_PCI
         select SYS_SUPPORTS_LITTLE_ENDIAN
+        select SYS_HAS_EARLY_PRINTK
 
 config MIPS_PB1550
         bool "Alchemy PB1550 board"
@@ -107,12 +119,14 @@ config MIPS_PB1550
         select HW_HAS_PCI
         select MIPS_DISABLE_OBSOLETE_IDE
         select SYS_SUPPORTS_LITTLE_ENDIAN
+        select SYS_HAS_EARLY_PRINTK
 
 config MIPS_XXS1500
         bool "MyCable XXS1500 board"
         select DMA_NONCOHERENT
         select SOC_AU1500
         select SYS_SUPPORTS_LITTLE_ENDIAN
+        select SYS_HAS_EARLY_PRINTK
 
 endchoice