root/include/linux/mtd/ndfc.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  *  Copyright (c) 2006 Thomas Gleixner <tglx@linutronix.de>
   4  *
   5  *  Info:
   6  *   Contains defines, datastructures for ndfc nand controller
   7  */
   8 #ifndef __LINUX_MTD_NDFC_H
   9 #define __LINUX_MTD_NDFC_H
  10 
  11 /* NDFC Register definitions */
  12 #define NDFC_CMD                0x00
  13 #define NDFC_ALE                0x04
  14 #define NDFC_DATA               0x08
  15 #define NDFC_ECC                0x10
  16 #define NDFC_BCFG0              0x30
  17 #define NDFC_BCFG1              0x34
  18 #define NDFC_BCFG2              0x38
  19 #define NDFC_BCFG3              0x3c
  20 #define NDFC_CCR                0x40
  21 #define NDFC_STAT               0x44
  22 #define NDFC_HWCTL              0x48
  23 #define NDFC_REVID              0x50
  24 
  25 #define NDFC_STAT_IS_READY      0x01000000
  26 
  27 #define NDFC_CCR_RESET_CE       0x80000000 /* CE Reset */
  28 #define NDFC_CCR_RESET_ECC      0x40000000 /* ECC Reset */
  29 #define NDFC_CCR_RIE            0x20000000 /* Interrupt Enable on Device Rdy */
  30 #define NDFC_CCR_REN            0x10000000 /* Enable wait for Rdy in LinearR */
  31 #define NDFC_CCR_ROMEN          0x08000000 /* Enable ROM In LinearR */
  32 #define NDFC_CCR_ARE            0x04000000 /* Auto-Read Enable */
  33 #define NDFC_CCR_BS(x)          (((x) & 0x3) << 24) /* Select Bank on CE[x] */
  34 #define NDFC_CCR_BS_MASK        0x03000000 /* Select Bank */
  35 #define NDFC_CCR_ARAC0          0x00000000 /* 3 Addr, 1 Col 2 Row 512b page */
  36 #define NDFC_CCR_ARAC1          0x00001000 /* 4 Addr, 1 Col 3 Row 512b page */
  37 #define NDFC_CCR_ARAC2          0x00002000 /* 4 Addr, 2 Col 2 Row 2K page */
  38 #define NDFC_CCR_ARAC3          0x00003000 /* 5 Addr, 2 Col 3 Row 2K page */
  39 #define NDFC_CCR_ARAC_MASK      0x00003000 /* Auto-Read mode Addr Cycles */
  40 #define NDFC_CCR_RPG            0x0000C000 /* Auto-Read Page */
  41 #define NDFC_CCR_EBCC           0x00000004 /* EBC Configuration Completed */
  42 #define NDFC_CCR_DHC            0x00000002 /* Direct Hardware Control Enable */
  43 
  44 #define NDFC_BxCFG_EN           0x80000000 /* Bank Enable */
  45 #define NDFC_BxCFG_CED          0x40000000 /* nCE Style */
  46 #define NDFC_BxCFG_SZ_MASK      0x08000000 /* Bank Size */
  47 #define NDFC_BxCFG_SZ_8BIT      0x00000000 /* 8bit */
  48 #define NDFC_BxCFG_SZ_16BIT     0x08000000 /* 16bit */
  49 
  50 #define NDFC_MAX_BANKS          4
  51 
  52 struct ndfc_controller_settings {
  53         uint32_t        ccr_settings;
  54         uint64_t        ndfc_erpn;
  55 };
  56 
  57 struct ndfc_chip_settings {
  58         uint32_t        bank_settings;
  59 };
  60 
  61 #endif