ARM: S3C64XX: Add SROM register definitions

This introduces a platform file for s3c64xx that defines
the SROM unit registers that control chip select
characteristics.

Signed-off-by: Andy Green <andy@warmcat.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>

2 files changed, 71 insertions, 0 deletions

diff --git a/arch/arm/mach-s3c6400/include/mach/map.h b/arch/arm/mach-s3c6400/include/mach/map.h
index c33810ed21b3..0d6044090566 100644
--- a/arch/arm/mach-s3c6400/include/mach/map.h
+++ b/arch/arm/mach-s3c6400/include/mach/map.h
@@ -17,6 +17,18 @@
 
 #include <plat/map-base.h>
 
+/*
+ * Post-mux Chip Select Regions Xm0CSn_
+ * These may be used by SROM, NAND or CF depending on settings
+ */
+
+#define S3C64XX_PA_XM0CSN0 (0x10000000)
+#define S3C64XX_PA_XM0CSN1 (0x18000000)
+#define S3C64XX_PA_XM0CSN2 (0x20000000)
+#define S3C64XX_PA_XM0CSN3 (0x28000000)
+#define S3C64XX_PA_XM0CSN4 (0x30000000)
+#define S3C64XX_PA_XM0CSN5 (0x38000000)
+
 /* HSMMC units */
 #define S3C64XX_PA_HSMMC(x)     (0x7C200000 + ((x) * 0x100000))
 #define S3C64XX_PA_HSMMC0       S3C64XX_PA_HSMMC(0)
diff --git a/arch/arm/plat-s3c64xx/include/plat/regs-srom.h b/arch/arm/plat-s3c64xx/include/plat/regs-srom.h
new file mode 100644
index 000000000000..756731b36297
--- /dev/null
+++ b/arch/arm/plat-s3c64xx/include/plat/regs-srom.h
@@ -0,0 +1,59 @@
+/* arch/arm/plat-s3c64xx/include/plat/regs-srom.h
+ *
+ * Copyright 2009 Andy Green <andy@warmcat.com>
+ *
+ * S3C64XX SROM definitions
+ *
+ * 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.
+*/
+
+#ifndef __PLAT_REGS_SROM_H
+#define __PLAT_REGS_SROM_H __FILE__
+
+#define S3C64XX_SROMREG(x)      (S3C_VA_MEM + (x))
+
+#define S3C64XX_SROM_BW         S3C64XX_SROMREG(0)
+#define S3C64XX_SROM_BC0        S3C64XX_SROMREG(4)
+#define S3C64XX_SROM_BC1        S3C64XX_SROMREG(8)
+#define S3C64XX_SROM_BC2        S3C64XX_SROMREG(0xc)
+#define S3C64XX_SROM_BC3        S3C64XX_SROMREG(0x10)
+#define S3C64XX_SROM_BC4        S3C64XX_SROMREG(0x14)
+#define S3C64XX_SROM_BC5        S3C64XX_SROMREG(0x18)
+
+/*
+ * one register BW holds 5 x 4-bit packed settings for NCS0 - NCS4
+ */
+
+#define S3C64XX_SROM_BW__DATAWIDTH__SHIFT       0
+#define S3C64XX_SROM_BW__WAITENABLE__SHIFT      2
+#define S3C64XX_SROM_BW__BYTEENABLE__SHIFT      3
+#define S3C64XX_SROM_BW__CS_MASK 0xf
+
+#define S3C64XX_SROM_BW__NCS0__SHIFT    0
+#define S3C64XX_SROM_BW__NCS1__SHIFT    4
+#define S3C64XX_SROM_BW__NCS2__SHIFT    8
+#define S3C64XX_SROM_BW__NCS3__SHIFT    0xc
+#define S3C64XX_SROM_BW__NCS4__SHIFT    0x10
+
+/*
+ * applies to same to BCS0 - BCS4
+ */
+
+#define S3C64XX_SROM_BCX__PMC__SHIFT    0
+#define S3C64XX_SROM_BCX__PMC__MASK     3
+#define S3C64XX_SROM_BCX__TACP__SHIFT   4
+#define S3C64XX_SROM_BCX__TACP__MASK    0xf
+#define S3C64XX_SROM_BCX__TCAH__SHIFT   8
+#define S3C64XX_SROM_BCX__TCAH__MASK    0xf
+#define S3C64XX_SROM_BCX__TCOH__SHIFT   12
+#define S3C64XX_SROM_BCX__TCOH__MASK    0xf
+#define S3C64XX_SROM_BCX__TACC__SHIFT   16
+#define S3C64XX_SROM_BCX__TACC__MASK    0x1f
+#define S3C64XX_SROM_BCX__TCOS__SHIFT   24
+#define S3C64XX_SROM_BCX__TCOS__MASK    0xf
+#define S3C64XX_SROM_BCX__TACS__SHIFT   28
+#define S3C64XX_SROM_BCX__TACS__MASK    0xf
+
+#endif /* _PLAT_REGS_SROM_H */