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Data Structures | Macros | Functions | Variables
ath79.c File Reference
Include dependency graph for ath79.c:

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Data Structures

struct  ath79_flash_bank
 
struct  ath79_spi_ctx
 
struct  ath79_target
 

Macros

#define ATH79_MAX_TIMEOUT   (3000)
 
#define ATH79_REG_CLOCK   4
 
#define ATH79_REG_DATA   12
 
#define ATH79_REG_FS   0
 
#define ATH79_REG_WRITE   8
 
#define ATH79_SPI_CE_HI   0x00100
 
#define ATH79_SPI_CS0_HI   0x10000
 
#define ATH79_SPI_CS1_HI   0x20000
 
#define ATH79_SPI_CS2_HI   0x40000
 
#define ATH79_SPI_CS_ALLHI   0x70000
 
#define ATH79_SPI_DO_HI   0x00001
 
#define ATH79_XFER_FINAL   0x00000001
 
#define ATH79_XFER_PARTIAL   0x00000000
 
#define BITS_PER_BYTE   8
 

Functions

static int ath79_auto_probe (struct flash_bank *bank)
 
static int ath79_erase (struct flash_bank *bank, unsigned int first, unsigned int last)
 
static int ath79_erase_sector (struct flash_bank *bank, int sector)
 
static int ath79_flash_blank_check (struct flash_bank *bank)
 
static void ath79_pracc_addn (struct pracc_queue_info *ctx, const uint32_t *instr, int n)
 
static int ath79_probe (struct flash_bank *bank)
 
static int ath79_protect (struct flash_bank *bank, int set, unsigned int first, unsigned int last)
 
static int ath79_protect_check (struct flash_bank *bank)
 
static int ath79_read (struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count)
 
static int ath79_read_buffer (struct flash_bank *bank, uint8_t *buffer, uint32_t address, uint32_t len)
 
static int ath79_spi_bitbang_bytes (struct flash_bank *bank, uint8_t *data, int len, uint32_t flags)
 
static int ath79_spi_bitbang_chunk (struct flash_bank *bank, uint8_t *data, int len, int *transferred)
 
static int ath79_spi_bitbang_codegen (struct ath79_flash_bank *ath79_info, struct pracc_queue_info *ctx, uint8_t *data, int len, int partial_xfer)
 
static void ath79_spi_bitbang_prepare (struct flash_bank *bank)
 
static int ath79_write (struct flash_bank *bank, const uint8_t *buffer, uint32_t offset, uint32_t count)
 
static int ath79_write_buffer (struct flash_bank *bank, const uint8_t *buffer, uint32_t address, uint32_t len)
 
static int ath79_write_enable (struct flash_bank *bank)
 
static int ath79_write_page (struct flash_bank *bank, const uint8_t *buffer, uint32_t address, uint32_t len)
 
static int erase_command (struct flash_bank *bank, int sector)
 
 FLASH_BANK_COMMAND_HANDLER (ath79_flash_bank_command)
 
static int get_ath79_info (struct flash_bank *bank, struct command_invocation *cmd)
 
static int read_flash_id (struct flash_bank *bank, uint32_t *id)
 
static int read_status_reg (struct flash_bank *bank, uint32_t *status)
 
static int wait_till_ready (struct flash_bank *bank, int timeout)
 

Variables

static const uint32_t ath79_chipselects []
 
const struct flash_driver ath79_flash
 
static const struct ath79_target target_devices []
 

Macro Definition Documentation

◆ ATH79_MAX_TIMEOUT

#define ATH79_MAX_TIMEOUT   (3000)

Definition at line 71 of file ath79.c.

◆ ATH79_REG_CLOCK

#define ATH79_REG_CLOCK   4

Definition at line 56 of file ath79.c.

◆ ATH79_REG_DATA

#define ATH79_REG_DATA   12

Definition at line 58 of file ath79.c.

◆ ATH79_REG_FS

#define ATH79_REG_FS   0

Definition at line 55 of file ath79.c.

◆ ATH79_REG_WRITE

#define ATH79_REG_WRITE   8

Definition at line 57 of file ath79.c.

◆ ATH79_SPI_CE_HI

#define ATH79_SPI_CE_HI   0x00100

Definition at line 64 of file ath79.c.

◆ ATH79_SPI_CS0_HI

#define ATH79_SPI_CS0_HI   0x10000

Definition at line 61 of file ath79.c.

◆ ATH79_SPI_CS1_HI

#define ATH79_SPI_CS1_HI   0x20000

Definition at line 62 of file ath79.c.

◆ ATH79_SPI_CS2_HI

#define ATH79_SPI_CS2_HI   0x40000

Definition at line 63 of file ath79.c.

◆ ATH79_SPI_CS_ALLHI

#define ATH79_SPI_CS_ALLHI   0x70000

Definition at line 60 of file ath79.c.

◆ ATH79_SPI_DO_HI

#define ATH79_SPI_DO_HI   0x00001

Definition at line 65 of file ath79.c.

◆ ATH79_XFER_FINAL

#define ATH79_XFER_FINAL   0x00000001

Definition at line 67 of file ath79.c.

◆ ATH79_XFER_PARTIAL

#define ATH79_XFER_PARTIAL   0x00000000

Definition at line 68 of file ath79.c.

◆ BITS_PER_BYTE

#define BITS_PER_BYTE   8

Definition at line 53 of file ath79.c.

Function Documentation

◆ ath79_auto_probe()

static int ath79_auto_probe ( struct flash_bank *  bank)
static

Definition at line 845 of file ath79.c.

References ath79_probe(), bank, ERROR_OK, and ath79_flash_bank::probed.

◆ ath79_erase()

static int ath79_erase ( struct flash_bank *  bank,
unsigned int  first,
unsigned int  last 
)
static

Definition at line 489 of file ath79.c.

References ath79_erase_sector(), bank, ath79_flash_bank::dev, flash_device::erase_cmd, ERROR_FAIL, ERROR_FLASH_BANK_NOT_PROBED, ERROR_FLASH_OPER_UNSUPPORTED, ERROR_FLASH_SECTOR_INVALID, ERROR_OK, ERROR_TARGET_NOT_HALTED, keep_alive(), LOG_DEBUG, LOG_ERROR, ath79_flash_bank::probed, target::state, and TARGET_HALTED.

◆ ath79_erase_sector()

static int ath79_erase_sector ( struct flash_bank *  bank,
int  sector 
)
static

Definition at line 473 of file ath79.c.

References ATH79_MAX_TIMEOUT, ath79_write_enable(), bank, erase_command(), ERROR_OK, and wait_till_ready().

Referenced by ath79_erase().

◆ ath79_flash_blank_check()

static int ath79_flash_blank_check ( struct flash_bank *  bank)
static

Definition at line 854 of file ath79.c.

References ERROR_OK.

◆ ath79_pracc_addn()

static void ath79_pracc_addn ( struct pracc_queue_info *  ctx,
const uint32_t *  instr,
int  n 
)
static

Definition at line 105 of file ath79.c.

References pracc_add().

Referenced by ath79_spi_bitbang_codegen().

◆ ath79_probe()

static int ath79_probe ( struct flash_bank *  bank)
static

Definition at line 754 of file ath79.c.

References bank, ath79_flash_bank::dev, flash_device::device_id, ERROR_FAIL, ERROR_OK, flash_devices, jtag_tap::idcode, ath79_flash_bank::io_base, ath79_target::io_base, flash_sector::is_erased, flash_sector::is_protected, LOG_DEBUG, LOG_ERROR, LOG_INFO, LOG_WARNING, ath79_target::name, flash_device::name, NULL, flash_sector::offset, ath79_spi_ctx::page_buf, flash_device::pagesize, ath79_flash_bank::probed, read_flash_id(), flash_device::sectorsize, flash_sector::size, flash_device::size_in_bytes, ath79_flash_bank::spi, SPIFLASH_DEF_PAGESIZE, target::tap, ath79_target::tap_idcode, TARGET_ADDR_FMT, and target_devices.

Referenced by ath79_auto_probe().

◆ ath79_protect()

static int ath79_protect ( struct flash_bank *  bank,
int  set,
unsigned int  first,
unsigned int  last 
)
static

Definition at line 533 of file ath79.c.

References bank, and ERROR_OK.

◆ ath79_protect_check()

static int ath79_protect_check ( struct flash_bank *  bank)
static

Definition at line 860 of file ath79.c.

References ERROR_OK.

◆ ath79_read()

static int ath79_read ( struct flash_bank *  bank,
uint8_t *  buffer,
uint32_t  offset,
uint32_t  count 
)
static

Definition at line 702 of file ath79.c.

References ath79_read_buffer(), bank, buffer, count, ERROR_TARGET_NOT_HALTED, LOG_DEBUG, LOG_ERROR, LOG_WARNING, offset, target::state, and TARGET_HALTED.

◆ ath79_read_buffer()

static int ath79_read_buffer ( struct flash_bank *  bank,
uint8_t *  buffer,
uint32_t  address,
uint32_t  len 
)
static

Definition at line 668 of file ath79.c.

References ath79_spi_bitbang_bytes(), ath79_spi_bitbang_prepare(), ATH79_XFER_FINAL, ATH79_XFER_PARTIAL, bank, buffer, ERROR_FAIL, ERROR_OK, LOG_DEBUG, LOG_ERROR, LOG_INFO, and SPIFLASH_READ.

Referenced by ath79_read().

◆ ath79_spi_bitbang_bytes()

static int ath79_spi_bitbang_bytes ( struct flash_bank *  bank,
uint8_t *  data,
int  len,
uint32_t  flags 
)
static

Definition at line 324 of file ath79.c.

References ath79_spi_bitbang_chunk(), ATH79_XFER_FINAL, bank, ERROR_OK, ath79_spi_ctx::post_deselect, and ath79_flash_bank::spi.

Referenced by ath79_read_buffer(), ath79_write_enable(), ath79_write_page(), erase_command(), read_flash_id(), and read_status_reg().

◆ ath79_spi_bitbang_chunk()

static int ath79_spi_bitbang_chunk ( struct flash_bank *  bank,
uint8_t *  data,
int  len,
int *  transferred 
)
static

Definition at line 233 of file ath79.c.

References ath79_spi_bitbang_codegen(), bank, BITS_PER_BYTE, pracc_queue_info::code_count, mips32_common::ejtag_info, pracc_queue_info::ejtag_info, ERROR_FAIL, ERROR_OK, ath79_flash_bank::io_base, LOG_DEBUG, LOG_ERROR, LOG_LEVEL_IS, LOG_LVL_DEBUG, mips32_pracc_queue_exec(), PRACC_MAX_INSTRUCTIONS, pracc_queue_free(), pracc_queue_init(), pracc_queue_info::retval, pracc_queue_info::store_count, target_buffer_set_u32_array(), and target_to_mips32().

Referenced by ath79_spi_bitbang_bytes().

◆ ath79_spi_bitbang_codegen()

static int ath79_spi_bitbang_codegen ( struct ath79_flash_bank *  ath79_info,
struct pracc_queue_info *  ctx,
uint8_t *  data,
int  len,
int  partial_xfer 
)
static

Definition at line 113 of file ath79.c.

References ARRAY_SIZE, ath79_chipselects, ath79_pracc_addn(), ATH79_REG_DATA, ATH79_REG_FS, ATH79_REG_WRITE, ATH79_SPI_CE_HI, ATH79_SPI_CS_ALLHI, bit(), BITS_PER_BYTE, ath79_flash_bank::chipselect, pracc_queue_info::code_count, ath79_flash_bank::io_base, ath79_target::io_base, LOWER16, MIPS32_B, MIPS32_LUI, MIPS32_LW, MIPS32_MFC0, MIPS32_ORI, MIPS32_PRACC_PARAM_OUT, MIPS32_SW, MIPS32_XORI, NEG16, ath79_spi_ctx::post_deselect, pracc_add(), PRACC_OUT_OFFSET, PRACC_UPPER_BASE_ADDR, ath79_spi_ctx::pre_deselect, ath79_flash_bank::spi, and UPPER16.

Referenced by ath79_spi_bitbang_chunk().

◆ ath79_spi_bitbang_prepare()

static void ath79_spi_bitbang_prepare ( struct flash_bank *  bank)
static

Definition at line 317 of file ath79.c.

References bank, ath79_spi_ctx::pre_deselect, and ath79_flash_bank::spi.

Referenced by ath79_read_buffer(), ath79_write_enable(), ath79_write_page(), erase_command(), read_flash_id(), and read_status_reg().

◆ ath79_write()

static int ath79_write ( struct flash_bank *  bank,
const uint8_t *  buffer,
uint32_t  offset,
uint32_t  count 
)
static

Definition at line 633 of file ath79.c.

References ath79_write_buffer(), bank, buffer, count, ERROR_FAIL, ERROR_TARGET_NOT_HALTED, flash_sector::is_protected, LOG_DEBUG, LOG_ERROR, LOG_WARNING, flash_sector::offset, offset, flash_sector::size, target::state, and TARGET_HALTED.

◆ ath79_write_buffer()

static int ath79_write_buffer ( struct flash_bank *  bank,
const uint8_t *  buffer,
uint32_t  address,
uint32_t  len 
)
static

Definition at line 603 of file ath79.c.

References ath79_write_page(), bank, buffer, ath79_flash_bank::dev, ERROR_OK, LOG_DEBUG, flash_device::pagesize, and SPIFLASH_DEF_PAGESIZE.

Referenced by ath79_write().

◆ ath79_write_enable()

static int ath79_write_enable ( struct flash_bank *  bank)
static

Definition at line 424 of file ath79.c.

References ath79_spi_bitbang_bytes(), ath79_spi_bitbang_prepare(), ATH79_XFER_FINAL, bank, ERROR_FAIL, ERROR_OK, LOG_ERROR, read_status_reg(), SPIFLASH_WE_BIT, SPIFLASH_WRITE_ENABLE, and status.

Referenced by ath79_erase_sector(), and ath79_write_page().

◆ ath79_write_page()

static int ath79_write_page ( struct flash_bank *  bank,
const uint8_t *  buffer,
uint32_t  address,
uint32_t  len 
)
static

Definition at line 541 of file ath79.c.

References ath79_spi_bitbang_bytes(), ath79_spi_bitbang_prepare(), ath79_write_enable(), ATH79_XFER_FINAL, ATH79_XFER_PARTIAL, bank, buffer, ath79_flash_bank::dev, ERROR_FAIL, ERROR_OK, LOG_ERROR, LOG_INFO, ath79_spi_ctx::page_buf, flash_device::pagesize, ath79_flash_bank::spi, SPIFLASH_DEF_PAGESIZE, and SPIFLASH_PAGE_PROGRAM.

Referenced by ath79_write_buffer().

◆ erase_command()

static int erase_command ( struct flash_bank *  bank,
int  sector 
)
static

Definition at line 454 of file ath79.c.

References ath79_spi_bitbang_bytes(), ath79_spi_bitbang_prepare(), ATH79_XFER_FINAL, bank, ath79_flash_bank::dev, flash_device::erase_cmd, and offset.

Referenced by ath79_erase_sector().

◆ FLASH_BANK_COMMAND_HANDLER()

FLASH_BANK_COMMAND_HANDLER ( ath79_flash_bank_command  )

Definition at line 347 of file ath79.c.

References bank, ath79_flash_bank::chipselect, CMD_ARGC, CMD_ARGV, ERROR_COMMAND_SYNTAX_ERROR, ERROR_FAIL, ERROR_OK, LOG_DEBUG, and LOG_ERROR.

◆ get_ath79_info()

static int get_ath79_info ( struct flash_bank *  bank,
struct command_invocation *  cmd 
)
static

Definition at line 866 of file ath79.c.

◆ read_flash_id()

static int read_flash_id ( struct flash_bank *  bank,
uint32_t *  id 
)
static

Definition at line 724 of file ath79.c.

References ath79_spi_bitbang_bytes(), ath79_spi_bitbang_prepare(), ATH79_XFER_FINAL, bank, ERROR_FAIL, ERROR_OK, ERROR_TARGET_NOT_HALTED, LOG_ERROR, SPIFLASH_READ_ID, target::state, and TARGET_HALTED.

Referenced by ath79_probe().

◆ read_status_reg()

static int read_status_reg ( struct flash_bank *  bank,
uint32_t *  status 
)
static

Definition at line 383 of file ath79.c.

References ath79_spi_bitbang_bytes(), ath79_spi_bitbang_prepare(), ATH79_XFER_FINAL, bank, SPIFLASH_READ_STATUS, and status.

Referenced by ath79_write_enable(), and wait_till_ready().

◆ wait_till_ready()

static int wait_till_ready ( struct flash_bank *  bank,
int  timeout 
)
static

Definition at line 401 of file ath79.c.

References alive_sleep(), bank, ERROR_FAIL, ERROR_OK, LOG_ERROR, read_status_reg(), SPIFLASH_BSY_BIT, status, and timeval_ms().

Referenced by ath79_erase_sector().

Variable Documentation

◆ ath79_chipselects

const uint32_t ath79_chipselects[]
static
Initial value:
= {
(~ATH79_SPI_CS0_HI & ATH79_SPI_CS_ALLHI),
(~ATH79_SPI_CS1_HI & ATH79_SPI_CS_ALLHI),
(~ATH79_SPI_CS2_HI & ATH79_SPI_CS_ALLHI),
}
ATH79_SPI_CS2_HI
#define ATH79_SPI_CS2_HI
Definition: ath79.c:63
ATH79_SPI_CS1_HI
#define ATH79_SPI_CS1_HI
Definition: ath79.c:62
ATH79_SPI_CS_ALLHI
#define ATH79_SPI_CS_ALLHI
Definition: ath79.c:60
ATH79_SPI_CS0_HI
#define ATH79_SPI_CS0_HI
Definition: ath79.c:61

Definition at line 99 of file ath79.c.

Referenced by ath79_spi_bitbang_codegen().

◆ ath79_flash

const struct flash_driver ath79_flash
Initial value:
= {
.name = "ath79",
.flash_bank_command = ath79_flash_bank_command,
.erase = ath79_erase,
.protect = ath79_protect,
.write = ath79_write,
.read = ath79_read,
.probe = ath79_probe,
.auto_probe = ath79_auto_probe,
.erase_check = ath79_flash_blank_check,
.protect_check = ath79_protect_check,
.info = get_ath79_info,
.free_driver_priv = default_flash_free_driver_priv,
}
ath79_protect
static int ath79_protect(struct flash_bank *bank, int set, unsigned int first, unsigned int last)
Definition: ath79.c:533
ath79_probe
static int ath79_probe(struct flash_bank *bank)
Definition: ath79.c:754
ath79_erase
static int ath79_erase(struct flash_bank *bank, unsigned int first, unsigned int last)
Definition: ath79.c:489
get_ath79_info
static int get_ath79_info(struct flash_bank *bank, struct command_invocation *cmd)
Definition: ath79.c:866
ath79_read
static int ath79_read(struct flash_bank *bank, uint8_t *buffer, uint32_t offset, uint32_t count)
Definition: ath79.c:702
ath79_flash_blank_check
static int ath79_flash_blank_check(struct flash_bank *bank)
Definition: ath79.c:854
ath79_protect_check
static int ath79_protect_check(struct flash_bank *bank)
Definition: ath79.c:860
ath79_write
static int ath79_write(struct flash_bank *bank, const uint8_t *buffer, uint32_t offset, uint32_t count)
Definition: ath79.c:633
ath79_auto_probe
static int ath79_auto_probe(struct flash_bank *bank)
Definition: ath79.c:845
default_flash_free_driver_priv
void default_flash_free_driver_priv(struct flash_bank *bank)
Deallocates bank->driver_priv.
Definition: flash/nor/core.c:210

Definition at line 866 of file ath79.c.

◆ target_devices

const struct ath79_target target_devices[]
static
Initial value:
= {
{ "ATH79", 0x00000001, 0xbf000000 },
{ NULL, 0, 0 }
}
NULL
#define NULL
Definition: usb.h:16

Definition at line 1 of file ath79.c.

Referenced by ath79_probe().