RTEMS  5.1
Data Structures | Macros | Typedefs | Functions
nand-mlc.h File Reference

NAND MLC controller API. More...

#include <rtems.h>
#include <bsp/utility.h>

Go to the source code of this file.

Data Structures

struct  lpc32xx_mlc_config
 MLC NAND controller configuration. More...
 

Macros

#define MLC_SMALL_PAGES   0x1U
 Selects small pages (512 Bytes user data and 16 Bytes spare data) or large pages (2048 Bytes user data and 64 Bytes spare data) if not set.
 
#define MLC_MANY_ADDRESS_CYCLES   0x2U
 
#define MLC_NORMAL_BLOCKS   0x4U
 Selects 64 pages per block or 128 pages per block if not set. More...
 
#define MLC_IO_WIDTH_16_BIT   0x8U
 Selects 16-bit IO width or 8-bit IO width if not set.
 
MLC NAND Flash Dimensions
#define MLC_SMALL_PAGE_SIZE   528
 
#define MLC_SMALL_DATA_SIZE   512
 
#define MLC_SMALL_SPARE_SIZE   16
 
#define MLC_SMALL_USER_SPARE_SIZE   6
 
#define MLC_SMALL_ECC_SPARE_SIZE   10
 
#define MLC_SMALL_DATA_WORD_COUNT   (MLC_SMALL_DATA_SIZE / 4)
 
#define MLC_SMALL_SPARE_WORD_COUNT   (MLC_SMALL_SPARE_SIZE / 4)
 
#define MLC_SMALL_PAGES_PER_LARGE_PAGE   4
 
#define MLC_LARGE_PAGE_SIZE   (MLC_SMALL_PAGES_PER_LARGE_PAGE * MLC_SMALL_PAGE_SIZE)
 
#define MLC_LARGE_DATA_SIZE   (MLC_SMALL_PAGES_PER_LARGE_PAGE * MLC_SMALL_DATA_SIZE)
 
#define MLC_LARGE_SPARE_SIZE   (MLC_SMALL_PAGES_PER_LARGE_PAGE * MLC_SMALL_SPARE_SIZE)
 
#define MLC_LARGE_DATA_WORD_COUNT   (MLC_LARGE_DATA_SIZE / 4)
 
#define MLC_LARGE_SPARE_WORD_COUNT   (MLC_LARGE_SPARE_SIZE / 4)
 
NAND Flash Clock Control Register (FLASHCLK_CTRL)
#define FLASHCLK_IRQ_MLC   BSP_BIT32(5)
 
#define FLASHCLK_MLC_DMA_RNB   BSP_BIT32(4)
 
#define FLASHCLK_MLC_DMA_INT   BSP_BIT32(3)
 
#define FLASHCLK_SELECT_SLC   BSP_BIT32(2)
 
#define FLASHCLK_MLC_CLK_ENABLE   BSP_BIT32(1)
 
#define FLASHCLK_SLC_CLK_ENABLE   BSP_BIT32(0)
 
MLC NAND Timing Register (MLC_TIME_REG)
#define MLC_TIME_WR_LOW(val)   BSP_FLD32(val, 0, 3)
 
#define MLC_TIME_WR_HIGH(val)   BSP_FLD32(val, 4, 7)
 
#define MLC_TIME_RD_LOW(val)   BSP_FLD32(val, 8, 11)
 
#define MLC_TIME_RD_HIGH(val)   BSP_FLD32(val, 12, 15)
 
#define MLC_TIME_NAND_TA(val)   BSP_FLD32(val, 16, 18)
 
#define MLC_TIME_BUSY_DELAY(val)   BSP_FLD32(val, 19, 23)
 
#define MLC_TIME_TCEA_DELAY(val)   BSP_FLD32(val, 24, 25)
 
MLC NAND Lock Protection Register (MLC_LOCK_PR)
#define MLC_UNLOCK_PROT   0xa25e
 
MLC NAND Status Register (MLC_ISR)
#define MLC_ISR_DECODER_FAILURE   BSP_BIT32(6)
 
#define MLC_ISR_SYMBOL_ERRORS(reg)   BSP_FLD32GET(reg, 4, 5)
 
#define MLC_ISR_ERRORS_DETECTED   BSP_BIT32(3)
 
#define MLC_ISR_ECC_READY   BSP_BIT32(2)
 
#define MLC_ISR_CONTROLLER_READY   BSP_BIT32(1)
 
#define MLC_ISR_NAND_READY   BSP_BIT32(0)
 
MLC NAND Controller Configuration Register (MLC_ICR)
#define MLC_ICR_SOFT_WRITE_PROT   BSP_BIT32(3)
 
#define MLC_ICR_LARGE_PAGES   BSP_BIT32(2)
 
#define MLC_ICR_ADDR_WORD_COUNT_4_5   BSP_BIT32(1)
 
#define MLC_ICR_IO_BUS_16   BSP_BIT32(0)
 
MLC NAND Auto Encode Register (MLC_ECC_AUTO_ENC)
#define MLC_ECC_AUTO_ENC_PROGRAM   BSP_BIT32(8)
 
NAND Status Register
#define NAND_STATUS_ERROR   (1U << 0)
 
#define NAND_STATUS_READY   (1U << 6)
 
#define NAND_STATUS_NOT_PROTECTED   (1U << 7)
 

Typedefs

typedef bool(* lpc32xx_mlc_read_process) (void *process_arg, uint32_t page_index, uint32_t page_size, uint32_t page_data [MLC_LARGE_DATA_WORD_COUNT], uint32_t page_spare [MLC_LARGE_SPARE_WORD_COUNT])
 Read blocks process function type. More...
 

Functions

void lpc32xx_mlc_init (const lpc32xx_mlc_config *cfg)
 Initializes the MLC NAND controller according to cfg.
 
uint32_t lpc32xx_mlc_page_size (void)
 
uint32_t lpc32xx_mlc_pages_per_block (void)
 
uint32_t lpc32xx_mlc_block_count (void)
 
uint32_t lpc32xx_mlc_io_width (void)
 
void lpc32xx_mlc_write_protection (uint32_t page_index_low, uint32_t page_index_high)
 
void lpc32xx_mlc_read_id (uint8_t *id, size_t n)
 
rtems_status_code lpc32xx_mlc_read_page (uint32_t page_index, void *data, void *spare, uint32_t *symbol_error_count)
 Reads the page with index page_index. More...
 
rtems_status_code lpc32xx_mlc_is_valid_block (uint32_t block_index)
 Checks if the block with index block_index is valid. More...
 
rtems_status_code lpc32xx_mlc_erase_block (uint32_t block_index)
 Erases the block with index block_index. More...
 
rtems_status_code lpc32xx_mlc_erase_block_safe (uint32_t block_index)
 Erases the block with index block_index. More...
 
rtems_status_code lpc32xx_mlc_erase_block_safe_3 (uint32_t block_index, uint32_t page_begin, uint32_t page_end)
 Erases the block with index block_index. More...
 
void lpc32xx_mlc_zero_pages (uint32_t page_begin, uint32_t page_end)
 Writes zero values to the pages specified by page_begin and page_end. More...
 
rtems_status_code lpc32xx_mlc_write_page_with_ecc (uint32_t page_index, const void *data, const void *spare)
 Writes the page with index page_index. More...
 
rtems_status_code lpc32xx_mlc_write_blocks (uint32_t block_begin, uint32_t block_end, const void *src, size_t src_size, uint32_t page_buffer [MLC_LARGE_DATA_WORD_COUNT])
 Writes src_size Bytes from src to the flash area specified by block_begin and block_end. More...
 
rtems_status_code lpc32xx_mlc_read_blocks (uint32_t block_begin, uint32_t block_end, lpc32xx_mlc_read_process process, void *process_arg, uint32_t page_buffer_0 [MLC_LARGE_DATA_WORD_COUNT], uint32_t page_buffer_1 [MLC_LARGE_DATA_WORD_COUNT])
 Reads the pages of block block_begin up to and excluding block_end. More...
 

Detailed Description

NAND MLC controller API.