ARM: S3C24XX: Add BWSCON per-bank information.

Add definitions and an accessor macro to deal with
reading bus information from S3C2410_BWSCON for any
given numbered bank.

Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>

diff --git a/arch/arm/mach-s3c2410/include/mach/regs-mem.h b/arch/arm/mach-s3c2410/include/mach/regs-mem.h
index 5775980..7f7c529 100644 (file)
--- a/arch/arm/mach-s3c2410/include/mach/regs-mem.h
+++ b/arch/arm/mach-s3c2410/include/mach/regs-mem.h
@@ -73,6 +73,16 @@
 #define S3C2410_BWSCON_WS7             (1<<30)
 #define S3C2410_BWSCON_ST7             (1<<31)
 
+/* accesor functions for getting BANK(n) configuration. (n != 0) */
+
+#define S3C2410_BWSCON_GET(_bwscon, _bank) (((_bwscon) >> ((_bank) * 4)) & 0xf)
+
+#define S3C2410_BWSCON_DW8             (0)
+#define S3C2410_BWSCON_DW16            (1)
+#define S3C2410_BWSCON_DW32            (2)
+#define S3C2410_BWSCON_WS              (1 << 2)
+#define S3C2410_BWSCON_ST              (1 << 3)
+
 /* memory set (rom, ram) */
 #define S3C2410_BANKCON0               S3C2410_MEMREG(0x0004)
 #define S3C2410_BANKCON1               S3C2410_MEMREG(0x0008)