From: Naveen Krishna CH ch.naveen@samsung.com
Memory subsystem of S5PC100 handles SROM, SRAM, OneDRAM, OneNand, NAND Flash, DDRs. smc.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 smc.h
2. The Macros are renamed according to TRM. Comments from Minkyu kang are fixed.
Changes since V2:
1. Macros have been modified to be generic. Comments from Minkyu kang are fixed
Changes since V3: 1. No Changes.
Changes since v4: 1. The header file name int he Description was changed.
Changes since V5: 1. No Changes.
include/asm-arm/arch-s5pc1xx/smc.h | 50 ++++++++++++++++++++++++++++++++++++ 1 files changed, 50 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..e1a5399 --- /dev/null +++ b/include/asm-arm/arch-s5pc1xx/smc.h @@ -0,0 +1,50 @@ +/* + * (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(x) (x << 28) /* 0clk address set-up */ +#define SMC_BC_TCOS(x) (x << 24) /* 4clk chip selection set-up */ +#define SMC_BC_TACC(x) (x << 16) /* 14clk access cycle */ +#define SMC_BC_TCOH(x) (x << 12) /* 1clk chip selection hold */ +#define SMC_BC_TAH(x) (x << 8) /* 4clk address holding time */ +#define SMC_BC_TACP(x) (x << 4) /* 6clk page mode access cycle */ +#define SMC_BC_PMC(x) (x << 0) /* normal(1data)page mode configuration */ + +#ifndef __ASSEMBLY__ +struct s5pc1xx_smc { + unsigned int bw; + unsigned int bc[6]; +}; +#endif /* __ASSEMBLY__ */ + +#endif /* __ASM_ARCH_SMC_H_ */