From: Naveen Krishna CH chnaveen@chnaveen.localdomain
Memory subsystem of S5PC100 handles SROM, SRAM, OneDRAM, OneNand, NAND Flash, DDRs. mem.h is a common place for the register description of Memory subsystem of S5PC100. Note: Only SROM related registers are descibed now.
Signed-off-by: Naveen Krishna Ch ch.naveen@samsung.com --- Changes since V1:
1. The header file is renamed to smc.h from mem.h 2. The Macros are renamed according to TRM. Comments from Minkyu kang are fixed.
Note: Some of the defined macros are not used now. They are added to facilitiate simple cofiguration of SMC registers.
include/asm-arm/arch-s5pc1xx/smc.h | 54 ++++++++++++++++++++++++++++++++++++ 1 files changed, 54 insertions(+), 0 deletions(-) create mode 100644 include/asm-arm/arch-s5pc1xx/smc.h
diff --git a/include/asm-arm/arch-s5pc1xx/smc.h b/include/asm-arm/arch-s5pc1xx/smc.h new file mode 100644 index 0000000..2a1ee07 --- /dev/null +++ b/include/asm-arm/arch-s5pc1xx/smc.h @@ -0,0 +1,54 @@ +/* + * (C) Copyright 2010 Samsung Electronics + * Naveen Krishna Ch ch.naveen@samsung.com + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * Note: This file contains the register description for Memory subsystem + * (SROM, NAND Flash, OneNand, DDR, OneDRAM) on S5PC1XX. + * + * Only SROMC is defined as of now + */ + +#ifndef __ASM_ARCH_SMC_H_ +#define __ASM_ARCH_SMC_H_ + +#define SMC_DATA16_WIDTH(x) (1<<((x*4)+0)) +#define SMC_BYTE_ADDR_MODE(x) (1<<((x*4)+1)) /* 0-> Half-word base address*/ + /* 1-> Byte base address*/ +#define SMC_WAIT_ENABLE(x) (1<<((x*4)+2)) +#define SMC_BYTE_ENABLE(x) (1<<((x*4)+3)) + +#define SMC_BC_TACS 0x0 /* 0clk address set-up */ +#define SMC_BC_TCOS 0x4 /* 4clk chip selection set-up */ +#define SMC_BC_TACC 0xe /* 14clk access cycle */ +#define SMC_BC_TCOH 0x1 /* 1clk chip selection hold */ +#define SMC_BC_TAH 0x4 /* 4clk address holding time */ +#define SMC_BC_TACP 0x6 /* 6clk page mode access cycle */ +#define SMC_BC_PMC 0x0 /* normal(1data)page mode configuration */ + +#define SMC_BC_CON ((SMC_BC_TACS<<28)|(SMC_BC_TCOS<<24)| \ + (SMC_BC_TACC<<16)|(SMC_BC_TCOH<<12)| \ + (SMC_BC_TAH<<8)|(SMC_BC_TACP<<4)|(SMC_BC_PMC)) + +#ifndef __ASSEMBLY__ +struct s5pc1xx_smc { + unsigned int bw; + unsigned int bc[6]; +}; +#endif /* __ASSEMBLY__ */ + +#endif /* __ASM_ARCH_SMC_H_ */