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Code Issues Releases Wiki Activity

Support reads of arbitrary range

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That means you can tell flashrom to read exactly bytes 12345-56789
(start 12345, length 44445) and it will not fetch a single byte more.

Uwe tested this on one LPC, one SPI, and one parallel flash board.

Corresponding to flashrom svn r596.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
This commit is contained in:
Carl-Daniel Hailfinger
2009-06-16 08:55:44 +00:00
parent 30f7cb2f3c
commit cbf563cbde
7 changed files with 48 additions and 35 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
flash.h
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@ -167,7 +167,7 @@ struct flashchip {
int probe_timing;
int (*erase) (struct flashchip *flash);
int (*write) (struct flashchip *flash, uint8_t *buf);
int (*read) (struct flashchip *flash, uint8_t *buf);
int (*read) (struct flashchip *flash, uint8_t *buf, int start, int len);
/* Some flash devices have an additional register space. */
chipaddr virtual_memory;
@ -362,7 +362,7 @@ extern struct pcidev_status satas_sii[];
extern int verbose;
#define printf_debug(x...) { if (verbose) printf(x); }
void map_flash_registers(struct flashchip *flash);
int read_memmapped(struct flashchip *flash, uint8_t *buf);
int read_memmapped(struct flashchip *flash, uint8_t *buf, int start, int len);
int min(int a, int b);
int max(int a, int b);
int check_erased_range(struct flashchip *flash, int start, int len);
@ -408,13 +408,13 @@ int spi_block_erase_52(const struct flashchip *flash, unsigned long addr);
int spi_block_erase_d8(const struct flashchip *flash, unsigned long addr);
int spi_chip_write_1(struct flashchip *flash, uint8_t *buf);
int spi_chip_write_256(struct flashchip *flash, uint8_t *buf);
int spi_chip_read(struct flashchip *flash, uint8_t *buf);
int spi_chip_read(struct flashchip *flash, uint8_t *buf, int start, int len);
uint8_t spi_read_status_register(void);
int spi_disable_blockprotect(void);
void spi_byte_program(int address, uint8_t byte);
int spi_nbyte_program(int address, uint8_t *bytes, int len);
int spi_nbyte_read(int address, uint8_t *bytes, int len);
int spi_read_chunked(struct flashchip *flash, uint8_t *buf, int chunksize);
int spi_read_chunked(struct flashchip *flash, uint8_t *buf, int start, int len, int chunksize);
int spi_aai_write(struct flashchip *flash, uint8_t *buf);
uint32_t spi_get_valid_read_addr(void);
@ -440,7 +440,7 @@ int write_en29f002a(struct flashchip *flash, uint8_t *buf);
int ich_init_opcodes(void);
int ich_spi_command(unsigned int writecnt, unsigned int readcnt,
const unsigned char *writearr, unsigned char *readarr);
int ich_spi_read(struct flashchip *flash, uint8_t * buf);
int ich_spi_read(struct flashchip *flash, uint8_t *buf, int start, int len);
int ich_spi_write_256(struct flashchip *flash, uint8_t * buf);
/* it87spi.c */
@ -451,14 +451,14 @@ int it87spi_init(void);
int it87xx_probe_spi_flash(const char *name);
int it8716f_spi_command(unsigned int writecnt, unsigned int readcnt,
const unsigned char *writearr, unsigned char *readarr);
int it8716f_spi_chip_read(struct flashchip *flash, uint8_t *buf);
int it8716f_spi_chip_read(struct flashchip *flash, uint8_t *buf, int start, int len);
int it8716f_spi_chip_write_1(struct flashchip *flash, uint8_t *buf);
int it8716f_spi_chip_write_256(struct flashchip *flash, uint8_t *buf);
/* sb600spi.c */
int sb600_spi_command(unsigned int writecnt, unsigned int readcnt,
const unsigned char *writearr, unsigned char *readarr);
int sb600_spi_read(struct flashchip *flash, uint8_t *buf);
int sb600_spi_read(struct flashchip *flash, uint8_t *buf, int start, int len);
int sb600_spi_write_1(struct flashchip *flash, uint8_t *buf);
uint8_t sb600_read_status_register(void);
extern uint8_t *sb600_spibar;
@ -557,7 +557,7 @@ int write_49f002(struct flashchip *flash, uint8_t *buf);
int wbsio_check_for_spi(const char *name);
int wbsio_spi_command(unsigned int writecnt, unsigned int readcnt,
const unsigned char *writearr, unsigned char *readarr);
int wbsio_spi_read(struct flashchip *flash, uint8_t *buf);
int wbsio_spi_read(struct flashchip *flash, uint8_t *buf, int start, int len);
int wbsio_spi_write_1(struct flashchip *flash, uint8_t *buf);
/* stm50flw0x0x.c */