| /* |
| * Atmel Nand Flash Controller (NFC) - System peripherals regsters. |
| * Based on SAMA5D3 datasheet. |
| * |
| * © Copyright 2013 Atmel Corporation. |
| * |
| * 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. |
| */ |
| |
| #ifndef ATMEL_NAND_NFC_H |
| #define ATMEL_NAND_NFC_H |
| |
| /* |
| * HSMC NFC registers |
| */ |
| #define ATMEL_HSMC_NFC_CFG 0x00 /* NFC Configuration Register */ |
| #define NFC_CFG_PAGESIZE (7 << 0) |
| #define NFC_CFG_PAGESIZE_512 (0 << 0) |
| #define NFC_CFG_PAGESIZE_1024 (1 << 0) |
| #define NFC_CFG_PAGESIZE_2048 (2 << 0) |
| #define NFC_CFG_PAGESIZE_4096 (3 << 0) |
| #define NFC_CFG_PAGESIZE_8192 (4 << 0) |
| #define NFC_CFG_WSPARE (1 << 8) |
| #define NFC_CFG_RSPARE (1 << 9) |
| #define NFC_CFG_NFC_DTOCYC (0xf << 16) |
| #define NFC_CFG_NFC_DTOMUL (0x7 << 20) |
| #define NFC_CFG_NFC_SPARESIZE (0x7f << 24) |
| #define NFC_CFG_NFC_SPARESIZE_BIT_POS 24 |
| |
| #define ATMEL_HSMC_NFC_CTRL 0x04 /* NFC Control Register */ |
| #define NFC_CTRL_ENABLE (1 << 0) |
| #define NFC_CTRL_DISABLE (1 << 1) |
| |
| #define ATMEL_HSMC_NFC_SR 0x08 /* NFC Status Register */ |
| #define NFC_SR_XFR_DONE (1 << 16) |
| #define NFC_SR_CMD_DONE (1 << 17) |
| #define NFC_SR_DTOE (1 << 20) |
| #define NFC_SR_UNDEF (1 << 21) |
| #define NFC_SR_AWB (1 << 22) |
| #define NFC_SR_ASE (1 << 23) |
| #define NFC_SR_RB_EDGE (1 << 24) |
| |
| #define ATMEL_HSMC_NFC_IER 0x0c |
| #define ATMEL_HSMC_NFC_IDR 0x10 |
| #define ATMEL_HSMC_NFC_IMR 0x14 |
| #define ATMEL_HSMC_NFC_CYCLE0 0x18 /* NFC Address Cycle Zero */ |
| #define ATMEL_HSMC_NFC_ADDR_CYCLE0 (0xff) |
| |
| #define ATMEL_HSMC_NFC_BANK 0x1c /* NFC Bank Register */ |
| #define ATMEL_HSMC_NFC_BANK0 (0 << 0) |
| #define ATMEL_HSMC_NFC_BANK1 (1 << 0) |
| |
| #define nfc_writel(addr, reg, value) \ |
| writel((value), (addr) + ATMEL_HSMC_NFC_##reg) |
| |
| #define nfc_readl(addr, reg) \ |
| readl_relaxed((addr) + ATMEL_HSMC_NFC_##reg) |
| |
| /* |
| * NFC Address Command definitions |
| */ |
| #define NFCADDR_CMD_CMD1 (0xff << 2) /* Command for Cycle 1 */ |
| #define NFCADDR_CMD_CMD1_BIT_POS 2 |
| #define NFCADDR_CMD_CMD2 (0xff << 10) /* Command for Cycle 2 */ |
| #define NFCADDR_CMD_CMD2_BIT_POS 10 |
| #define NFCADDR_CMD_VCMD2 (0x1 << 18) /* Valid Cycle 2 Command */ |
| #define NFCADDR_CMD_ACYCLE (0x7 << 19) /* Number of Address required */ |
| #define NFCADDR_CMD_ACYCLE_NONE (0x0 << 19) |
| #define NFCADDR_CMD_ACYCLE_1 (0x1 << 19) |
| #define NFCADDR_CMD_ACYCLE_2 (0x2 << 19) |
| #define NFCADDR_CMD_ACYCLE_3 (0x3 << 19) |
| #define NFCADDR_CMD_ACYCLE_4 (0x4 << 19) |
| #define NFCADDR_CMD_ACYCLE_5 (0x5 << 19) |
| #define NFCADDR_CMD_ACYCLE_BIT_POS 19 |
| #define NFCADDR_CMD_CSID (0x7 << 22) /* Chip Select Identifier */ |
| #define NFCADDR_CMD_CSID_0 (0x0 << 22) |
| #define NFCADDR_CMD_CSID_1 (0x1 << 22) |
| #define NFCADDR_CMD_CSID_2 (0x2 << 22) |
| #define NFCADDR_CMD_CSID_3 (0x3 << 22) |
| #define NFCADDR_CMD_CSID_4 (0x4 << 22) |
| #define NFCADDR_CMD_CSID_5 (0x5 << 22) |
| #define NFCADDR_CMD_CSID_6 (0x6 << 22) |
| #define NFCADDR_CMD_CSID_7 (0x7 << 22) |
| #define NFCADDR_CMD_DATAEN (0x1 << 25) /* Data Transfer Enable */ |
| #define NFCADDR_CMD_DATADIS (0x0 << 25) /* Data Transfer Disable */ |
| #define NFCADDR_CMD_NFCRD (0x0 << 26) /* NFC Read Enable */ |
| #define NFCADDR_CMD_NFCWR (0x1 << 26) /* NFC Write Enable */ |
| #define NFCADDR_CMD_NFCBUSY (0x1 << 27) /* NFC Busy */ |
| |
| #define nfc_cmd_addr1234_writel(cmd, addr1234, nfc_base) \ |
| writel((addr1234), (cmd) + nfc_base) |
| |
| #define nfc_cmd_readl(bitstatus, nfc_base) \ |
| readl_relaxed((bitstatus) + nfc_base) |
| |
| #define NFC_TIME_OUT_MS 100 |
| #define NFC_SRAM_BANK1_OFFSET 0x1200 |
| |
| #endif |
