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linux/arch/arm/mach-s3c2410/include/mach/regs-mem.h
Ben Dooks b0e66522f4 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>
2009-07-30 23:22:51 +01:00

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/* arch/arm/mach-s3c2410/include/mach/regs-mem.h
*
* Copyright (c) 2004 Simtec Electronics <linux@simtec.co.uk>
* http://www.simtec.co.uk/products/SWLINUX/
*
* 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.
*
* S3C2410 Memory Control register definitions
*/
#ifndef __ASM_ARM_MEMREGS_H
#define __ASM_ARM_MEMREGS_H
#ifndef S3C2410_MEMREG
#define S3C2410_MEMREG(x) (S3C24XX_VA_MEMCTRL + (x))
#endif
/* bus width, and wait state control */
#define S3C2410_BWSCON S3C2410_MEMREG(0x0000)
/* bank zero config - note, pinstrapped from OM pins! */
#define S3C2410_BWSCON_DW0_16 (1<<1)
#define S3C2410_BWSCON_DW0_32 (2<<1)
/* bank one configs */
#define S3C2410_BWSCON_DW1_8 (0<<4)
#define S3C2410_BWSCON_DW1_16 (1<<4)
#define S3C2410_BWSCON_DW1_32 (2<<4)
#define S3C2410_BWSCON_WS1 (1<<6)
#define S3C2410_BWSCON_ST1 (1<<7)
/* bank 2 configurations */
#define S3C2410_BWSCON_DW2_8 (0<<8)
#define S3C2410_BWSCON_DW2_16 (1<<8)
#define S3C2410_BWSCON_DW2_32 (2<<8)
#define S3C2410_BWSCON_WS2 (1<<10)
#define S3C2410_BWSCON_ST2 (1<<11)
/* bank 3 configurations */
#define S3C2410_BWSCON_DW3_8 (0<<12)
#define S3C2410_BWSCON_DW3_16 (1<<12)
#define S3C2410_BWSCON_DW3_32 (2<<12)
#define S3C2410_BWSCON_WS3 (1<<14)
#define S3C2410_BWSCON_ST3 (1<<15)
/* bank 4 configurations */
#define S3C2410_BWSCON_DW4_8 (0<<16)
#define S3C2410_BWSCON_DW4_16 (1<<16)
#define S3C2410_BWSCON_DW4_32 (2<<16)
#define S3C2410_BWSCON_WS4 (1<<18)
#define S3C2410_BWSCON_ST4 (1<<19)
/* bank 5 configurations */
#define S3C2410_BWSCON_DW5_8 (0<<20)
#define S3C2410_BWSCON_DW5_16 (1<<20)
#define S3C2410_BWSCON_DW5_32 (2<<20)
#define S3C2410_BWSCON_WS5 (1<<22)
#define S3C2410_BWSCON_ST5 (1<<23)
/* bank 6 configurations */
#define S3C2410_BWSCON_DW6_8 (0<<24)
#define S3C2410_BWSCON_DW6_16 (1<<24)
#define S3C2410_BWSCON_DW6_32 (2<<24)
#define S3C2410_BWSCON_WS6 (1<<26)
#define S3C2410_BWSCON_ST6 (1<<27)
/* bank 7 configurations */
#define S3C2410_BWSCON_DW7_8 (0<<28)
#define S3C2410_BWSCON_DW7_16 (1<<28)
#define S3C2410_BWSCON_DW7_32 (2<<28)
#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)
#define S3C2410_BANKCON2 S3C2410_MEMREG(0x000C)
#define S3C2410_BANKCON3 S3C2410_MEMREG(0x0010)
#define S3C2410_BANKCON4 S3C2410_MEMREG(0x0014)
#define S3C2410_BANKCON5 S3C2410_MEMREG(0x0018)
#define S3C2410_BANKCON6 S3C2410_MEMREG(0x001C)
#define S3C2410_BANKCON7 S3C2410_MEMREG(0x0020)
/* bank configuration registers */
#define S3C2410_BANKCON_PMCnorm (0x00)
#define S3C2410_BANKCON_PMC4 (0x01)
#define S3C2410_BANKCON_PMC8 (0x02)
#define S3C2410_BANKCON_PMC16 (0x03)
/* bank configurations for banks 0..7, note banks
* 6 and 7 have differnt configurations depending on
* the memory type bits */
#define S3C2410_BANKCON_Tacp2 (0x0 << 2)
#define S3C2410_BANKCON_Tacp3 (0x1 << 2)
#define S3C2410_BANKCON_Tacp4 (0x2 << 2)
#define S3C2410_BANKCON_Tacp6 (0x3 << 2)
#define S3C2410_BANKCON_Tacp_SHIFT (2)
#define S3C2410_BANKCON_Tcah0 (0x0 << 4)
#define S3C2410_BANKCON_Tcah1 (0x1 << 4)
#define S3C2410_BANKCON_Tcah2 (0x2 << 4)
#define S3C2410_BANKCON_Tcah4 (0x3 << 4)
#define S3C2410_BANKCON_Tcah_SHIFT (4)
#define S3C2410_BANKCON_Tcoh0 (0x0 << 6)
#define S3C2410_BANKCON_Tcoh1 (0x1 << 6)
#define S3C2410_BANKCON_Tcoh2 (0x2 << 6)
#define S3C2410_BANKCON_Tcoh4 (0x3 << 6)
#define S3C2410_BANKCON_Tcoh_SHIFT (6)
#define S3C2410_BANKCON_Tacc1 (0x0 << 8)
#define S3C2410_BANKCON_Tacc2 (0x1 << 8)
#define S3C2410_BANKCON_Tacc3 (0x2 << 8)
#define S3C2410_BANKCON_Tacc4 (0x3 << 8)
#define S3C2410_BANKCON_Tacc6 (0x4 << 8)
#define S3C2410_BANKCON_Tacc8 (0x5 << 8)
#define S3C2410_BANKCON_Tacc10 (0x6 << 8)
#define S3C2410_BANKCON_Tacc14 (0x7 << 8)
#define S3C2410_BANKCON_Tacc_SHIFT (8)
#define S3C2410_BANKCON_Tcos0 (0x0 << 11)
#define S3C2410_BANKCON_Tcos1 (0x1 << 11)
#define S3C2410_BANKCON_Tcos2 (0x2 << 11)
#define S3C2410_BANKCON_Tcos4 (0x3 << 11)
#define S3C2410_BANKCON_Tcos_SHIFT (11)
#define S3C2410_BANKCON_Tacs0 (0x0 << 13)
#define S3C2410_BANKCON_Tacs1 (0x1 << 13)
#define S3C2410_BANKCON_Tacs2 (0x2 << 13)
#define S3C2410_BANKCON_Tacs4 (0x3 << 13)
#define S3C2410_BANKCON_Tacs_SHIFT (13)
#define S3C2410_BANKCON_SRAM (0x0 << 15)
#define S3C2400_BANKCON_EDODRAM (0x2 << 15)
#define S3C2410_BANKCON_SDRAM (0x3 << 15)
/* next bits only for EDO DRAM in 6,7 */
#define S3C2400_BANKCON_EDO_Trcd1 (0x00 << 4)
#define S3C2400_BANKCON_EDO_Trcd2 (0x01 << 4)
#define S3C2400_BANKCON_EDO_Trcd3 (0x02 << 4)
#define S3C2400_BANKCON_EDO_Trcd4 (0x03 << 4)
/* CAS pulse width */
#define S3C2400_BANKCON_EDO_PULSE1 (0x00 << 3)
#define S3C2400_BANKCON_EDO_PULSE2 (0x01 << 3)
/* CAS pre-charge */
#define S3C2400_BANKCON_EDO_TCP1 (0x00 << 2)
#define S3C2400_BANKCON_EDO_TCP2 (0x01 << 2)
/* control column address select */
#define S3C2400_BANKCON_EDO_SCANb8 (0x00 << 0)
#define S3C2400_BANKCON_EDO_SCANb9 (0x01 << 0)
#define S3C2400_BANKCON_EDO_SCANb10 (0x02 << 0)
#define S3C2400_BANKCON_EDO_SCANb11 (0x03 << 0)
/* next bits only for SDRAM in 6,7 */
#define S3C2410_BANKCON_Trcd2 (0x00 << 2)
#define S3C2410_BANKCON_Trcd3 (0x01 << 2)
#define S3C2410_BANKCON_Trcd4 (0x02 << 2)
/* control column address select */
#define S3C2410_BANKCON_SCANb8 (0x00 << 0)
#define S3C2410_BANKCON_SCANb9 (0x01 << 0)
#define S3C2410_BANKCON_SCANb10 (0x02 << 0)
#define S3C2410_REFRESH S3C2410_MEMREG(0x0024)
#define S3C2410_BANKSIZE S3C2410_MEMREG(0x0028)
#define S3C2410_MRSRB6 S3C2410_MEMREG(0x002C)
#define S3C2410_MRSRB7 S3C2410_MEMREG(0x0030)
/* refresh control */
#define S3C2410_REFRESH_REFEN (1<<23)
#define S3C2410_REFRESH_SELF (1<<22)
#define S3C2410_REFRESH_REFCOUNTER ((1<<11)-1)
#define S3C2410_REFRESH_TRP_MASK (3<<20)
#define S3C2410_REFRESH_TRP_2clk (0<<20)
#define S3C2410_REFRESH_TRP_3clk (1<<20)
#define S3C2410_REFRESH_TRP_4clk (2<<20)
#define S3C2400_REFRESH_DRAM_TRP_MASK (3<<20)
#define S3C2400_REFRESH_DRAM_TRP_1_5clk (0<<20)
#define S3C2400_REFRESH_DRAM_TRP_2_5clk (1<<20)
#define S3C2400_REFRESH_DRAM_TRP_3_5clk (2<<20)
#define S3C2400_REFRESH_DRAM_TRP_4_5clk (3<<20)
#define S3C2410_REFRESH_TSRC_MASK (3<<18)
#define S3C2410_REFRESH_TSRC_4clk (0<<18)
#define S3C2410_REFRESH_TSRC_5clk (1<<18)
#define S3C2410_REFRESH_TSRC_6clk (2<<18)
#define S3C2410_REFRESH_TSRC_7clk (3<<18)
/* mode select register(s) */
#define S3C2410_MRSRB_CL1 (0x00 << 4)
#define S3C2410_MRSRB_CL2 (0x02 << 4)
#define S3C2410_MRSRB_CL3 (0x03 << 4)
/* bank size register */
#define S3C2410_BANKSIZE_128M (0x2 << 0)
#define S3C2410_BANKSIZE_64M (0x1 << 0)
#define S3C2410_BANKSIZE_32M (0x0 << 0)
#define S3C2410_BANKSIZE_16M (0x7 << 0)
#define S3C2410_BANKSIZE_8M (0x6 << 0)
#define S3C2410_BANKSIZE_4M (0x5 << 0)
#define S3C2410_BANKSIZE_2M (0x4 << 0)
#define S3C2410_BANKSIZE_MASK (0x7 << 0)
#define S3C2400_BANKSIZE_MASK (0x4 << 0)
#define S3C2410_BANKSIZE_SCLK_EN (1<<4)
#define S3C2410_BANKSIZE_SCKE_EN (1<<5)
#define S3C2410_BANKSIZE_BURST (1<<7)
#endif /* __ASM_ARM_MEMREGS_H */
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