1 /* 2 * Atmel Nand Flash Controller (NFC) - System peripherals regsters. 3 * Based on SAMA5D3 datasheet. 4 * 5 * © Copyright 2013 Atmel Corporation. 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License as published by the 9 * Free Software Foundation; either version 2 of the License, or (at your 10 * option) any later version. 11 */ 12 13 #ifndef ATMEL_NAND_NFC_H 14 #define ATMEL_NAND_NFC_H 15 16 /* 17 * HSMC NFC registers 18 */ 19 #define ATMEL_HSMC_NFC_CFG 0x00 /* NFC Configuration Register */ 20 #define NFC_CFG_PAGESIZE (7 << 0) 21 #define NFC_CFG_PAGESIZE_512 (0 << 0) 22 #define NFC_CFG_PAGESIZE_1024 (1 << 0) 23 #define NFC_CFG_PAGESIZE_2048 (2 << 0) 24 #define NFC_CFG_PAGESIZE_4096 (3 << 0) 25 #define NFC_CFG_PAGESIZE_8192 (4 << 0) 26 #define NFC_CFG_WSPARE (1 << 8) 27 #define NFC_CFG_RSPARE (1 << 9) 28 #define NFC_CFG_NFC_DTOCYC (0xf << 16) 29 #define NFC_CFG_NFC_DTOMUL (0x7 << 20) 30 #define NFC_CFG_NFC_SPARESIZE (0x7f << 24) 31 #define NFC_CFG_NFC_SPARESIZE_BIT_POS 24 32 33 #define ATMEL_HSMC_NFC_CTRL 0x04 /* NFC Control Register */ 34 #define NFC_CTRL_ENABLE (1 << 0) 35 #define NFC_CTRL_DISABLE (1 << 1) 36 37 #define ATMEL_HSMC_NFC_SR 0x08 /* NFC Status Register */ 38 #define NFC_SR_XFR_DONE (1 << 16) 39 #define NFC_SR_CMD_DONE (1 << 17) 40 #define NFC_SR_DTOE (1 << 20) 41 #define NFC_SR_UNDEF (1 << 21) 42 #define NFC_SR_AWB (1 << 22) 43 #define NFC_SR_ASE (1 << 23) 44 #define NFC_SR_RB_EDGE (1 << 24) 45 46 #define ATMEL_HSMC_NFC_IER 0x0c 47 #define ATMEL_HSMC_NFC_IDR 0x10 48 #define ATMEL_HSMC_NFC_IMR 0x14 49 #define ATMEL_HSMC_NFC_CYCLE0 0x18 /* NFC Address Cycle Zero */ 50 #define ATMEL_HSMC_NFC_ADDR_CYCLE0 (0xff) 51 52 #define ATMEL_HSMC_NFC_BANK 0x1c /* NFC Bank Register */ 53 #define ATMEL_HSMC_NFC_BANK0 (0 << 0) 54 #define ATMEL_HSMC_NFC_BANK1 (1 << 0) 55 56 #define nfc_writel(addr, reg, value) \ 57 writel((value), (addr) + ATMEL_HSMC_NFC_##reg) 58 59 #define nfc_readl(addr, reg) \ 60 readl_relaxed((addr) + ATMEL_HSMC_NFC_##reg) 61 62 /* 63 * NFC Address Command definitions 64 */ 65 #define NFCADDR_CMD_CMD1 (0xff << 2) /* Command for Cycle 1 */ 66 #define NFCADDR_CMD_CMD1_BIT_POS 2 67 #define NFCADDR_CMD_CMD2 (0xff << 10) /* Command for Cycle 2 */ 68 #define NFCADDR_CMD_CMD2_BIT_POS 10 69 #define NFCADDR_CMD_VCMD2 (0x1 << 18) /* Valid Cycle 2 Command */ 70 #define NFCADDR_CMD_ACYCLE (0x7 << 19) /* Number of Address required */ 71 #define NFCADDR_CMD_ACYCLE_NONE (0x0 << 19) 72 #define NFCADDR_CMD_ACYCLE_1 (0x1 << 19) 73 #define NFCADDR_CMD_ACYCLE_2 (0x2 << 19) 74 #define NFCADDR_CMD_ACYCLE_3 (0x3 << 19) 75 #define NFCADDR_CMD_ACYCLE_4 (0x4 << 19) 76 #define NFCADDR_CMD_ACYCLE_5 (0x5 << 19) 77 #define NFCADDR_CMD_ACYCLE_BIT_POS 19 78 #define NFCADDR_CMD_CSID (0x7 << 22) /* Chip Select Identifier */ 79 #define NFCADDR_CMD_CSID_0 (0x0 << 22) 80 #define NFCADDR_CMD_CSID_1 (0x1 << 22) 81 #define NFCADDR_CMD_CSID_2 (0x2 << 22) 82 #define NFCADDR_CMD_CSID_3 (0x3 << 22) 83 #define NFCADDR_CMD_CSID_4 (0x4 << 22) 84 #define NFCADDR_CMD_CSID_5 (0x5 << 22) 85 #define NFCADDR_CMD_CSID_6 (0x6 << 22) 86 #define NFCADDR_CMD_CSID_7 (0x7 << 22) 87 #define NFCADDR_CMD_DATAEN (0x1 << 25) /* Data Transfer Enable */ 88 #define NFCADDR_CMD_DATADIS (0x0 << 25) /* Data Transfer Disable */ 89 #define NFCADDR_CMD_NFCRD (0x0 << 26) /* NFC Read Enable */ 90 #define NFCADDR_CMD_NFCWR (0x1 << 26) /* NFC Write Enable */ 91 #define NFCADDR_CMD_NFCBUSY (0x1 << 27) /* NFC Busy */ 92 93 #define nfc_cmd_addr1234_writel(cmd, addr1234, nfc_base) \ 94 writel((addr1234), (cmd) + nfc_base) 95 96 #define nfc_cmd_readl(bitstatus, nfc_base) \ 97 readl_relaxed((bitstatus) + nfc_base) 98 99 #define NFC_TIME_OUT_MS 100 100 #define NFC_SRAM_BANK1_OFFSET 0x1200 101 102 #endif 103