diff options
Diffstat (limited to 'include/asm-arm/arch-spear/spr_nand.h')
| -rw-r--r-- | include/asm-arm/arch-spear/spr_nand.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/include/asm-arm/arch-spear/spr_nand.h b/include/asm-arm/arch-spear/spr_nand.h new file mode 100644 index 0000000000..2b63dc7e8e --- /dev/null +++ b/include/asm-arm/arch-spear/spr_nand.h @@ -0,0 +1,57 @@ +/* + * (C) Copyright 2009 + * Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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 + */ + +#ifndef __SPR_NAND_H__ +#define __SPR_NAND_H__ + +struct fsmc_regs { + u32 reserved_1[0x10]; + u32 genmemctrl_pc; + u32 reserved_2; + u32 genmemctrl_comm; + u32 genmemctrl_attrib; + u32 reserved_3; + u32 genmemctrl_ecc; +}; + +/* genmemctrl_pc register definitions */ +#define FSMC_RESET (1 << 0) +#define FSMC_WAITON (1 << 1) +#define FSMC_ENABLE (1 << 2) +#define FSMC_DEVTYPE_NAND (1 << 3) +#define FSMC_DEVWID_8 (0 << 4) +#define FSMC_DEVWID_16 (1 << 4) +#define FSMC_ECCEN (1 << 6) +#define FSMC_ECCPLEN_512 (0 << 7) +#define FSMC_ECCPLEN_256 (1 << 7) +#define FSMC_TCLR_1 (1 << 9) +#define FSMC_TAR_1 (1 << 13) + +/* genmemctrl_comm register definitions */ +#define FSMC_TSET_0 (0 << 0) +#define FSMC_TWAIT_6 (6 << 8) +#define FSMC_THOLD_4 (4 << 16) +#define FSMC_THIZ_1 (1 << 24) + +extern int spear_nand_init(struct nand_chip *nand); +#endif |