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Diffstat (limited to 'u-boot/include/fsl_nfc.h')
| -rw-r--r-- | u-boot/include/fsl_nfc.h | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/u-boot/include/fsl_nfc.h b/u-boot/include/fsl_nfc.h new file mode 100644 index 0000000..279aaa5 --- /dev/null +++ b/u-boot/include/fsl_nfc.h @@ -0,0 +1,171 @@ +/* + * (c) 2009 Magnus Lilja <lilja.magnus@gmail.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 __FSL_NFC_H +#define __FSL_NFC_H + +/* + * TODO: Use same register defs for nand_spl mxc nand driver + * and mtd mxc nand driver. + * + * Register map and bit definitions for the Freescale NAND Flash + * Controller present in various i.MX devices. + * + * MX31 and MX27 have version 1 which has + * 4 512 byte main buffers and + * 4 16 byte spare buffers + * to support up to 2K byte pagesize nand. + * Reading or writing a 2K page requires 4 FDI/FDO cycles. + * + * MX25 has version 1.1 which has + * 8 512 byte main buffers and + * 8 64 byte spare buffers + * to support up to 4K byte pagesize nand. + * Reading or writing a 2K or 4K page requires only 1 FDI/FDO cycle. + * Also some of registers are moved and/or changed meaning as seen below. + */ +#if defined(CONFIG_MX31) || defined(CONFIG_MX27) +#define MXC_NFC_V1 +#elif defined(CONFIG_MX25) +#define MXC_NFC_V1_1 +#else +#warning "MXC NFC version not defined" +#endif + +#if defined(MXC_NFC_V1) +#define NAND_MXC_NR_BUFS 4 +#define NAND_MXC_SPARE_BUF_SIZE 16 +#define NAND_MXC_REG_OFFSET 0xe00 +#define NAND_MXC_2K_MULTI_CYCLE 1 +#elif defined(MXC_NFC_V1_1) +#define NAND_MXC_NR_BUFS 8 +#define NAND_MXC_SPARE_BUF_SIZE 64 +#define NAND_MXC_REG_OFFSET 0x1e00 +#else +#error "define CONFIG_NAND_MXC_VXXX to use the mxc spl_nand driver" +#endif + +struct fsl_nfc_regs { + u32 main_area[NAND_MXC_NR_BUFS][512/4]; + u32 spare_area[NAND_MXC_NR_BUFS][NAND_MXC_SPARE_BUF_SIZE/4]; + /* + * reserved size is offset of nfc registers + * minus total main and spare sizes + */ + u8 reserved1[NAND_MXC_REG_OFFSET + - NAND_MXC_NR_BUFS * (512 + NAND_MXC_SPARE_BUF_SIZE)]; +#if defined(MXC_NFC_V1) + u16 bufsiz; + u16 reserved2; + u16 buffer_address; + u16 flash_add; + u16 flash_cmd; + u16 configuration; + u16 ecc_status_result; + u16 ecc_rslt_main_area; + u16 ecc_rslt_spare_area; + u16 nf_wr_prot; + u16 unlock_start_blk_add; + u16 unlock_end_blk_add; + u16 nand_flash_wr_pr_st; + u16 nand_flash_config1; + u16 nand_flash_config2; +#elif defined(MXC_NFC_V1_1) + u16 reserved2[2]; + u16 buffer_address; + u16 flash_add; + u16 flash_cmd; + u16 configuration; + u16 ecc_status_result; + u16 ecc_status_result2; + u16 spare_area_size; + u16 nf_wr_prot; + u16 reserved3[2]; + u16 nand_flash_wr_pr_st; + u16 nand_flash_config1; + u16 nand_flash_config2; + u16 reserved4; + u16 unlock_start_blk_add0; + u16 unlock_end_blk_add0; + u16 unlock_start_blk_add1; + u16 unlock_end_blk_add1; + u16 unlock_start_blk_add2; + u16 unlock_end_blk_add2; + u16 unlock_start_blk_add3; + u16 unlock_end_blk_add3; +#endif +}; + +/* + * Set INT to 0, FCMD to 1, rest to 0 in NFC_CONFIG2 Register for Command + * operation + */ +#define NFC_CMD 0x1 + +/* + * Set INT to 0, FADD to 1, rest to 0 in NFC_CONFIG2 Register for Address + * operation + */ +#define NFC_ADDR 0x2 + +/* + * Set INT to 0, FDI to 1, rest to 0 in NFC_CONFIG2 Register for Input + * operation + */ +#define NFC_INPUT 0x4 + +/* + * Set INT to 0, FDO to 001, rest to 0 in NFC_CONFIG2 Register for Data + * Output operation + */ +#define NFC_OUTPUT 0x8 + +/* + * Set INT to 0, FD0 to 010, rest to 0 in NFC_CONFIG2 Register for Read ID + * operation + */ +#define NFC_ID 0x10 + +/* + * Set INT to 0, FDO to 100, rest to 0 in NFC_CONFIG2 Register for Read + * Status operation + */ +#define NFC_STATUS 0x20 + +/* + * Set INT to 1, rest to 0 in NFC_CONFIG2 Register for Read Status + * operation + */ +#define NFC_INT 0x8000 + +#ifdef MXC_NFC_V1_1 +#define NFC_4_8N_ECC (1 << 0) +#endif +#define NFC_SP_EN (1 << 2) +#define NFC_ECC_EN (1 << 3) +#define NFC_INT_MSK (1 << 4) +#define NFC_BIG (1 << 5) +#define NFC_RST (1 << 6) +#define NFC_CE (1 << 7) +#define NFC_ONE_CYCLE (1 << 8) + +#endif /* __FSL_NFC_H */ |