drivers/staging/spectra/lld_nand.h

   1 /*
   2  * NAND Flash Controller Device Driver
   3  * Copyright (c) 2009, Intel Corporation and its suppliers.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms and conditions of the GNU General Public License,
   7  * version 2, as published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  17  *
  18  */
  19
  20 #ifndef _LLD_NAND_
  21 #define _LLD_NAND_
  22
  23 #ifdef ELDORA
  24 #include "defs.h"
  25 #else
  26 #include "flash.h"
  27 #include "ffsport.h"
  28 #endif
  29
  30 #define MODE_00    0x00000000
  31 #define MODE_01    0x04000000
  32 #define MODE_10    0x08000000
  33 #define MODE_11    0x0C000000
  34
  35
  36 #define DATA_TRANSFER_MODE              0
  37 #define PROTECTION_PER_BLOCK            1
  38 #define LOAD_WAIT_COUNT                 2
  39 #define PROGRAM_WAIT_COUNT              3
  40 #define ERASE_WAIT_COUNT                4
  41 #define INT_MONITOR_CYCLE_COUNT         5
  42 #define READ_BUSY_PIN_ENABLED           6
  43 #define MULTIPLANE_OPERATION_SUPPORT    7
  44 #define PRE_FETCH_MODE                  8
  45 #define CE_DONT_CARE_SUPPORT            9
  46 #define COPYBACK_SUPPORT                10
  47 #define CACHE_WRITE_SUPPORT             11
  48 #define CACHE_READ_SUPPORT              12
  49 #define NUM_PAGES_IN_BLOCK              13
  50 #define ECC_ENABLE_SELECT               14
  51 #define WRITE_ENABLE_2_READ_ENABLE      15
  52 #define ADDRESS_2_DATA                  16
  53 #define READ_ENABLE_2_WRITE_ENABLE      17
  54 #define TWO_ROW_ADDRESS_CYCLES          18
  55 #define MULTIPLANE_ADDRESS_RESTRICT     19
  56 #define ACC_CLOCKS                      20
  57 #define READ_WRITE_ENABLE_LOW_COUNT     21
  58 #define READ_WRITE_ENABLE_HIGH_COUNT    22
  59
  60 #define ECC_SECTOR_SIZE     512
  61 #define LLD_MAX_FLASH_BANKS     4
  62
  63 struct mrst_nand_info {
  64         struct pci_dev *dev;
  65         u32 state;
  66         u32 flash_bank;
  67         u8 *read_data;
  68         u8 *write_data;
  69         u32 block;
  70         u16 page;
  71         u32 use_dma;
  72         void __iomem *ioaddr;  /* Mapped io reg base address */
  73         int ret;
  74         u32 pcmds_num;
  75         struct pending_cmd *pcmds;
  76         int cdma_num;           /* CDMA descriptor number in this chan */
  77         u8 *cdma_desc_buf;      /* CDMA descriptor table */
  78         u8 *memcp_desc_buf;     /* Memory copy descriptor table */
  79         dma_addr_t cdma_desc;   /* Mapped CDMA descriptor table */
  80         dma_addr_t memcp_desc;  /* Mapped memory copy descriptor table */
  81         struct completion complete;
  82 };
  83
  84 int NAND_Flash_Init(void);
  85 int nand_release_spectra(void);
  86 u16  NAND_Flash_Reset(void);
  87 u16  NAND_Read_Device_ID(void);
  88 u16  NAND_Erase_Block(u32 flash_add);
  89 u16  NAND_Write_Page_Main(u8 *write_data, u32 block, u16 page,
  90                                 u16 page_count);
  91 u16  NAND_Read_Page_Main(u8 *read_data, u32 block, u16 page,
  92                                 u16 page_count);
  93 u16  NAND_UnlockArrayAll(void);
  94 u16  NAND_Write_Page_Main_Spare(u8 *write_data, u32 block,
  95                                 u16 page, u16 page_count);
  96 u16  NAND_Write_Page_Spare(u8 *read_data, u32 block, u16 page,
  97                                 u16 page_count);
  98 u16  NAND_Read_Page_Main_Spare(u8 *read_data, u32 block, u16 page,
  99                                 u16 page_count);
 100 u16  NAND_Read_Page_Spare(u8 *read_data, u32 block, u16 page,
 101                                 u16 page_count);
 102 void NAND_LLD_Enable_Disable_Interrupts(u16 INT_ENABLE);
 103 u16  NAND_Get_Bad_Block(u32 block);
 104 u16  NAND_Pipeline_Read_Ahead(u8 *read_data, u32 block, u16 page,
 105                                 u16 page_count);
 106 u16  NAND_Pipeline_Write_Ahead(u8 *write_data, u32 block,
 107                                 u16 page, u16 page_count);
 108 u16  NAND_Multiplane_Read(u8 *read_data, u32 block, u16 page,
 109                                 u16 page_count);
 110 u16  NAND_Multiplane_Write(u8 *write_data, u32 block, u16 page,
 111                                 u16 page_count);
 112 void NAND_ECC_Ctrl(int enable);
 113 u16 NAND_Read_Page_Main_Polling(u8 *read_data,
 114                 u32 block, u16 page, u16 page_count);
 115 u16 NAND_Pipeline_Read_Ahead_Polling(u8 *read_data,
 116                         u32 block, u16 page, u16 page_count);
 117 void Conv_Spare_Data_Log2Phy_Format(u8 *data);
 118 void Conv_Spare_Data_Phy2Log_Format(u8 *data);
 119 void Conv_Main_Spare_Data_Log2Phy_Format(u8 *data, u16 page_count);
 120 void Conv_Main_Spare_Data_Phy2Log_Format(u8 *data, u16 page_count);
 121
 122 extern void __iomem *FlashReg;
 123 extern void __iomem *FlashMem;
 124
 125 extern int totalUsedBanks;
 126 extern u32 GLOB_valid_banks[LLD_MAX_FLASH_BANKS];
 127
 128 #endif /*_LLD_NAND_*/
 129
 130
 131