ARM: socfpga: Fix socfpga compilation with early_printk() enabled

This fixes early_printk() compilation for
socfpga. (senduart/busyuart/waituart were missing). It does that by
making Picochip code generic.

Signed-off-by: Pavel Machek <pavel@denx.de>
Acked-by: Dinh Nguyen <dinguyen@altera.com>
Acked-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

diff --git a/arch/arm/include/debug/8250_32.S b/arch/arm/include/debug/8250_32.S
new file mode 100644 (file)
index 0000000..8db01ee
--- /dev/null
+++ b/arch/arm/include/debug/8250_32.S
@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2011 Picochip Ltd., Jamie Iles
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Derived from arch/arm/mach-davinci/include/mach/debug-macro.S to use 32-bit
+ * accesses to the 8250.
+ */
+
+#include <linux/serial_reg.h>
+
+               .macro  senduart,rd,rx
+               str     \rd, [\rx, #UART_TX << UART_SHIFT]
+               .endm
+
+               .macro  busyuart,rd,rx
+1002:          ldr     \rd, [\rx, #UART_LSR << UART_SHIFT]
+               and     \rd, \rd, #UART_LSR_TEMT | UART_LSR_THRE
+               teq     \rd, #UART_LSR_TEMT | UART_LSR_THRE
+               bne     1002b
+               .endm
+
+               /* The UART's don't have any flow control IO's wired up. */
+               .macro  waituart,rd,rx
+               .endm

diff --git a/arch/arm/include/debug/picoxcell.S b/arch/arm/include/debug/picoxcell.S
index 7419deb..bc1f07c 100644 (file)
--- a/arch/arm/include/debug/picoxcell.S
+++ b/arch/arm/include/debug/picoxcell.S
@@ -5,10 +5,7 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  *
- * Derived from arch/arm/mach-davinci/include/mach/debug-macro.S to use 32-bit
- * accesses to the 8250.
  */
-#include <linux/serial_reg.h>
 
 #define UART_SHIFT 2
 #define PICOXCELL_UART1_BASE           0x80230000
@@ -19,17 +16,4 @@
                ldr     \rp, =PICOXCELL_UART1_BASE
                .endm
 
-               .macro  senduart,rd,rx
-               str     \rd, [\rx, #UART_TX << UART_SHIFT]
-               .endm
-
-               .macro  busyuart,rd,rx
-1002:          ldr     \rd, [\rx, #UART_LSR << UART_SHIFT]
-               and     \rd, \rd, #UART_LSR_TEMT | UART_LSR_THRE
-               teq     \rd, #UART_LSR_TEMT | UART_LSR_THRE
-               bne     1002b
-               .endm
-
-               /* The UART's don't have any flow control IO's wired up. */
-               .macro  waituart,rd,rx
-               .endm
+#include "8250_32.S"

diff --git a/arch/arm/include/debug/socfpga.S b/arch/arm/include/debug/socfpga.S
index d6f26d2..966b2f9 100644 (file)
--- a/arch/arm/include/debug/socfpga.S
+++ b/arch/arm/include/debug/socfpga.S
@@ -7,6 +7,9 @@
  * published by the Free Software Foundation.
  */
 
+#define UART_SHIFT 2
+#define DEBUG_LL_UART_OFFSET   0x00002000
+
                .macro  addruart, rp, rv, tmp
                mov     \rp, #DEBUG_LL_UART_OFFSET
                orr     \rp, \rp, #0x00c00000
@@ -14,3 +17,5 @@
                orr     \rp, \rp, #0xff000000   @ physical base
                .endm
 
+#include "8250_32.S"
+