flashrom

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Re: [flashrom] flashrom support for Intel Rangeley/Avoton/C2000
by Stefan Tauner 10 May '14

10 May '14

On Sat, 10 May 2014 11:43:30 +0530 Rajasekhar Pulluru <pullururajasekhar(a)gmail.com> wrote: > Hi Stefan, > > In the system, only below regions were mapped and only these regions can be > erased/programmed. > > 0x54: 0x000f0000 FREG0: Flash Descriptor region (0x00000000-0x0000ffff) is > read-write. > 0x58: 0x07ff0200 FREG1: BIOS region (0x00200000-0x007fffff) is read-write. > > The other regions were not used on this platform. > > Creating a romlayout file and programming only the specified regions solves > the issue. The patch works fine. Hello Rajasekhar, great to hear that it works for you. Your patch as sent previously does have a few issues (flash chip patch included, redundancies that might be worthwhile to refactor) that need to be resolved before integrating it. I would probably want to take it and merge it manually when integrating chromiumos' baytrail patch. To be able to do this we need your confirmation by signing off the patch as explained here: http://www.coreboot.org/Development_Guidelines#Sign-off_Procedure -- Kind regards/Mit freundlichen Grüßen, Stefan Tauner

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Re: [flashrom] flashrom support for Intel Rangeley/Avoton/C2000
by Stefan Tauner 10 May '14

10 May '14

On Wed, 23 Apr 2014 20:40:26 +0530 Rajasekhar Pulluru <pullururajasekhar(a)gmail.com> wrote: > Hi Stefan, > > Attached the full logs (excluding dmi). My observation is that: > 1) reading spi flash seems to be good. > 2) erasing spi flash : only first 64kb erases successfully, after that > erase reports failure. > 3) programming spi flash: only first 64kb programs fine, after that erase > reports failure. Hi, your output is missing the lines that are printed to stderr instead of stdout and you should probably use the -o option of flashrom to create logfiles ;) ... but anyway, it seems to me as if the ME region starts exactly where you have problems. And I assume that it is at least not writable. You can make that r/w by changing the flash descriptor (i.e. the first 4kB which are apparently writable). -- Kind regards/Mit freundlichen Grüßen, Stefan Tauner

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Re: [flashrom] [PATCH] Add const to many function prototypes
by Stefan Tauner 09 May '14

09 May '14

On Thu, 28 Mar 2013 13:16:10 +0100 Mark Marshall <markmarshall14(a)gmail.com> wrote: > Add 'const' to the data block passed to 'write' functions. > This is as much for documentation as anything else, but should > allow the compiler to make a few basic checks for us. > > Signed-off-by: Mark Marshall <mark.marshall(a)omicron.at> I don't know what's more embarrassing: that we have not merged this earlier or that we have not even noticed that the patch was mangled by your MUA. Anyway, as a fan of strict typing I like the patch and so I have fixed it, rebased it and eventually committed it in r1789. Thank you! To everyone trying to rebase patches that now fail to merge: my sincere apologies, but you probably have earned it though. :P -- Kind regards/Mit freundlichen Grüßen, Stefan Tauner

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[commit] r1789 - trunk
by repository service 09 May '14

09 May '14

Author: stefanct Date: Fri May 9 23:16:21 2014 New Revision: 1789 URL: http://flashrom.org/trac/flashrom/changeset/1789 Log: Add 'const' keyword to chip write and other function prototypes. Inspired by and mostly based on a patch Signed-off-by: Mark Marshall <mark.marshall(a)omicron.at> Signed-off-by: Stefan Tauner <stefan.tauner(a)alumni.tuwien.ac.at> Acked-by: Stefan Tauner <stefan.tauner(a)alumni.tuwien.ac.at> Modified: trunk/82802ab.c trunk/at45db.c trunk/chipdrivers.h trunk/dummyflasher.c trunk/en29lv640b.c trunk/flash.h trunk/flashrom.c trunk/ichspi.c trunk/it87spi.c trunk/layout.c trunk/linux_spi.c trunk/m29f400bt.c trunk/opaque.c trunk/programmer.c trunk/programmer.h trunk/serial.c trunk/spi.c trunk/spi25.c trunk/sst28sf040.c Modified: trunk/82802ab.c ============================================================================== --- trunk/82802ab.c Thu May 8 00:07:23 2014 (r1788) +++ trunk/82802ab.c Fri May 9 23:16:21 2014 (r1789) @@ -142,8 +142,7 @@ } /* chunksize is 1 */ -int write_82802ab(struct flashctx *flash, uint8_t *src, unsigned int start, - unsigned int len) +int write_82802ab(struct flashctx *flash, const uint8_t *src, unsigned int start, unsigned int len) { int i; chipaddr dst = flash->virtual_memory + start; Modified: trunk/at45db.c ============================================================================== --- trunk/at45db.c Thu May 8 00:07:23 2014 (r1788) +++ trunk/at45db.c Fri May 9 23:16:21 2014 (r1789) @@ -460,7 +460,7 @@ return at45db_erase(flash, opcode, at45db_convert_addr(addr, page_size), 200000, 100); } -static int at45db_fill_buffer1(struct flashctx *flash, uint8_t *bytes, unsigned int off, unsigned int len) +static int at45db_fill_buffer1(struct flashctx *flash, const uint8_t *bytes, unsigned int off, unsigned int len) { const unsigned int page_size = flash->chip->page_size; if ((off + len) > page_size) { @@ -518,7 +518,7 @@ return 0; } -static int at45db_program_page(struct flashctx *flash, uint8_t *buf, unsigned int at45db_addr) +static int at45db_program_page(struct flashctx *flash, const uint8_t *buf, unsigned int at45db_addr) { int ret = at45db_fill_buffer1(flash, buf, 0, flash->chip->page_size); if (ret != 0) { @@ -535,7 +535,7 @@ return 0; } -int spi_write_at45db(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len) +int spi_write_at45db(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len) { const unsigned int page_size = flash->chip->page_size; const unsigned int total_size = flash->chip->total_size; Modified: trunk/chipdrivers.h ============================================================================== --- trunk/chipdrivers.h Thu May 8 00:07:23 2014 (r1788) +++ trunk/chipdrivers.h Fri May 9 23:16:21 2014 (r1789) @@ -28,8 +28,8 @@ #include "flash.h" /* for chipaddr and flashctx */ /* spi.c */ -int spi_aai_write(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len); -int spi_chip_write_256(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len); +int spi_aai_write(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len); +int spi_chip_write_256(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len); int spi_chip_read(struct flashctx *flash, uint8_t *buf, unsigned int start, int unsigned len); /* spi25.c */ @@ -54,12 +54,12 @@ int spi_block_erase_d8(struct flashctx *flash, unsigned int addr, unsigned int blocklen); int spi_block_erase_db(struct flashctx *flash, unsigned int addr, unsigned int blocklen); erasefunc_t *spi_get_erasefn_from_opcode(uint8_t opcode); -int spi_chip_write_1(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len); +int spi_chip_write_1(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len); int spi_byte_program(struct flashctx *flash, unsigned int addr, uint8_t databyte); -int spi_nbyte_program(struct flashctx *flash, unsigned int addr, uint8_t *bytes, unsigned int len); +int spi_nbyte_program(struct flashctx *flash, unsigned int addr, const uint8_t *bytes, unsigned int len); int spi_nbyte_read(struct flashctx *flash, unsigned int addr, uint8_t *bytes, unsigned int len); int spi_read_chunked(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len, unsigned int chunksize); -int spi_write_chunked(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len, unsigned int chunksize); +int spi_write_chunked(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len, unsigned int chunksize); /* spi25_statusreg.c */ uint8_t spi_read_status_register(struct flashctx *flash); @@ -107,7 +107,7 @@ /* opaque.c */ int probe_opaque(struct flashctx *flash); int read_opaque(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len); -int write_opaque(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len); +int write_opaque(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len); int erase_opaque(struct flashctx *flash, unsigned int blockaddr, unsigned int blocklen); /* at45db.c */ @@ -116,7 +116,7 @@ int spi_disable_blockprotect_at45db(struct flashctx *flash); int spi_read_at45db(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len); int spi_read_at45db_e8(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len); -int spi_write_at45db(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len); +int spi_write_at45db(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len); int spi_erase_at45db_page(struct flashctx *flash, unsigned int addr, unsigned int blocklen); int spi_erase_at45db_block(struct flashctx *flash, unsigned int addr, unsigned int blocklen); int spi_erase_at45db_sector(struct flashctx *flash, unsigned int addr, unsigned int blocklen); @@ -127,7 +127,7 @@ uint8_t wait_82802ab(struct flashctx *flash); int probe_82802ab(struct flashctx *flash); int erase_block_82802ab(struct flashctx *flash, unsigned int page, unsigned int pagesize); -int write_82802ab(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len); +int write_82802ab(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len); void print_status_82802ab(uint8_t status); int unlock_82802ab(struct flashctx *flash); int unlock_28f004s5(struct flashctx *flash); @@ -140,8 +140,8 @@ int write_byte_program_jedec(struct flashctx *flash, chipaddr bios, uint8_t *src, chipaddr dst); int probe_jedec(struct flashctx *flash); -int write_jedec(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len); -int write_jedec_1(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len); +int write_jedec(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len); +int write_jedec_1(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len); int erase_sector_jedec(struct flashctx *flash, unsigned int page, unsigned int pagesize); int erase_block_jedec(struct flashctx *flash, unsigned int page, unsigned int blocksize); int erase_chip_block_jedec(struct flashctx *flash, unsigned int page, unsigned int blocksize); @@ -150,7 +150,7 @@ int probe_m29f400bt(struct flashctx *flash); int block_erase_m29f400bt(struct flashctx *flash, unsigned int start, unsigned int len); int block_erase_chip_m29f400bt(struct flashctx *flash, unsigned int start, unsigned int len); -int write_m29f400bt(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len); +int write_m29f400bt(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len); void protect_m29f400bt(struct flashctx *flash, chipaddr bios); /* pm49fl00x.c */ @@ -160,7 +160,7 @@ /* sst28sf040.c */ int erase_chip_28sf040(struct flashctx *flash, unsigned int addr, unsigned int blocklen); int erase_sector_28sf040(struct flashctx *flash, unsigned int address, unsigned int sector_size); -int write_28sf040(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len); +int write_28sf040(struct flashctx *flash, const uint8_t *buf,unsigned int start, unsigned int len); int unprotect_28sf040(struct flashctx *flash); int protect_28sf040(struct flashctx *flash); @@ -202,6 +202,6 @@ int probe_en29lv640b(struct flashctx *flash); int block_erase_en29lv640b(struct flashctx *flash, unsigned int start, unsigned int len); int block_erase_chip_en29lv640b(struct flashctx *flash, unsigned int start, unsigned int len); -int write_en29lv640b(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len); +int write_en29lv640b(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len); #endif /* !__CHIPDRIVERS_H__ */ Modified: trunk/dummyflasher.c ============================================================================== --- trunk/dummyflasher.c Thu May 8 00:07:23 2014 (r1788) +++ trunk/dummyflasher.c Fri May 9 23:16:21 2014 (r1789) @@ -96,28 +96,18 @@ static unsigned int spi_write_256_chunksize = 256; -static int dummy_spi_send_command(struct flashctx *flash, unsigned int writecnt, - unsigned int readcnt, - const unsigned char *writearr, - unsigned char *readarr); -static int dummy_spi_write_256(struct flashctx *flash, uint8_t *buf, +static int dummy_spi_send_command(struct flashctx *flash, unsigned int writecnt, unsigned int readcnt, + const unsigned char *writearr, unsigned char *readarr); +static int dummy_spi_write_256(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len); -static void dummy_chip_writeb(const struct flashctx *flash, uint8_t val, - chipaddr addr); -static void dummy_chip_writew(const struct flashctx *flash, uint16_t val, - chipaddr addr); -static void dummy_chip_writel(const struct flashctx *flash, uint32_t val, - chipaddr addr); -static void dummy_chip_writen(const struct flashctx *flash, uint8_t *buf, - chipaddr addr, size_t len); -static uint8_t dummy_chip_readb(const struct flashctx *flash, - const chipaddr addr); -static uint16_t dummy_chip_readw(const struct flashctx *flash, - const chipaddr addr); -static uint32_t dummy_chip_readl(const struct flashctx *flash, - const chipaddr addr); -static void dummy_chip_readn(const struct flashctx *flash, uint8_t *buf, - const chipaddr addr, size_t len); +static void dummy_chip_writeb(const struct flashctx *flash, uint8_t val, chipaddr addr); +static void dummy_chip_writew(const struct flashctx *flash, uint16_t val, chipaddr addr); +static void dummy_chip_writel(const struct flashctx *flash, uint32_t val, chipaddr addr); +static void dummy_chip_writen(const struct flashctx *flash, const uint8_t *buf, chipaddr addr, size_t len); +static uint8_t dummy_chip_readb(const struct flashctx *flash, const chipaddr addr); +static uint16_t dummy_chip_readw(const struct flashctx *flash, const chipaddr addr); +static uint32_t dummy_chip_readl(const struct flashctx *flash, const chipaddr addr); +static void dummy_chip_readn(const struct flashctx *flash, uint8_t *buf, const chipaddr addr, size_t len); static const struct spi_programmer spi_programmer_dummyflasher = { .type = SPI_CONTROLLER_DUMMY, @@ -427,26 +417,22 @@ msg_pspew("%s: Unmapping 0x%zx bytes at %p\n", __func__, len, virt_addr); } -static void dummy_chip_writeb(const struct flashctx *flash, uint8_t val, - chipaddr addr) +static void dummy_chip_writeb(const struct flashctx *flash, uint8_t val, chipaddr addr) { msg_pspew("%s: addr=0x%" PRIxPTR ", val=0x%02x\n", __func__, addr, val); } -static void dummy_chip_writew(const struct flashctx *flash, uint16_t val, - chipaddr addr) +static void dummy_chip_writew(const struct flashctx *flash, uint16_t val, chipaddr addr) { msg_pspew("%s: addr=0x%" PRIxPTR ", val=0x%04x\n", __func__, addr, val); } -static void dummy_chip_writel(const struct flashctx *flash, uint32_t val, - chipaddr addr) +static void dummy_chip_writel(const struct flashctx *flash, uint32_t val, chipaddr addr) { msg_pspew("%s: addr=0x%" PRIxPTR ", val=0x%08x\n", __func__, addr, val); } -static void dummy_chip_writen(const struct flashctx *flash, uint8_t *buf, - chipaddr addr, size_t len) +static void dummy_chip_writen(const struct flashctx *flash, const uint8_t *buf, chipaddr addr, size_t len) { size_t i; msg_pspew("%s: addr=0x%" PRIxPTR ", len=0x%zx, writing data (hex):", __func__, addr, len); @@ -457,29 +443,25 @@ } } -static uint8_t dummy_chip_readb(const struct flashctx *flash, - const chipaddr addr) +static uint8_t dummy_chip_readb(const struct flashctx *flash, const chipaddr addr) { msg_pspew("%s: addr=0x%" PRIxPTR ", returning 0xff\n", __func__, addr); return 0xff; } -static uint16_t dummy_chip_readw(const struct flashctx *flash, - const chipaddr addr) +static uint16_t dummy_chip_readw(const struct flashctx *flash, const chipaddr addr) { msg_pspew("%s: addr=0x%" PRIxPTR ", returning 0xffff\n", __func__, addr); return 0xffff; } -static uint32_t dummy_chip_readl(const struct flashctx *flash, - const chipaddr addr) +static uint32_t dummy_chip_readl(const struct flashctx *flash, const chipaddr addr) { msg_pspew("%s: addr=0x%" PRIxPTR ", returning 0xffffffff\n", __func__, addr); return 0xffffffff; } -static void dummy_chip_readn(const struct flashctx *flash, uint8_t *buf, - const chipaddr addr, size_t len) +static void dummy_chip_readn(const struct flashctx *flash, uint8_t *buf, const chipaddr addr, size_t len) { msg_pspew("%s: addr=0x%" PRIxPTR ", len=0x%zx, returning array of 0xff\n", __func__, addr, len); memset(buf, 0xff, len); @@ -846,8 +828,7 @@ return 0; } -static int dummy_spi_write_256(struct flashctx *flash, uint8_t *buf, - unsigned int start, unsigned int len) +static int dummy_spi_write_256(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len) { return spi_write_chunked(flash, buf, start, len, spi_write_256_chunksize); Modified: trunk/en29lv640b.c ============================================================================== --- trunk/en29lv640b.c Thu May 8 00:07:23 2014 (r1788) +++ trunk/en29lv640b.c Fri May 9 23:16:21 2014 (r1789) @@ -31,8 +31,7 @@ */ /* chunksize is 1 */ -int write_en29lv640b(struct flashctx *flash, uint8_t *src, unsigned int start, - unsigned int len) +int write_en29lv640b(struct flashctx *flash, const uint8_t *src, unsigned int start, unsigned int len) { int i; chipaddr bios = flash->virtual_memory; Modified: trunk/flash.h ============================================================================== --- trunk/flash.h Thu May 8 00:07:23 2014 (r1788) +++ trunk/flash.h Fri May 9 23:16:21 2014 (r1789) @@ -175,7 +175,7 @@ int (*printlock) (struct flashctx *flash); int (*unlock) (struct flashctx *flash); - int (*write) (struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len); + int (*write) (struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len); int (*read) (struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len); struct voltage { uint16_t min; @@ -228,7 +228,7 @@ void chip_writeb(const struct flashctx *flash, uint8_t val, chipaddr addr); void chip_writew(const struct flashctx *flash, uint16_t val, chipaddr addr); void chip_writel(const struct flashctx *flash, uint32_t val, chipaddr addr); -void chip_writen(const struct flashctx *flash, uint8_t *buf, chipaddr addr, size_t len); +void chip_writen(const struct flashctx *flash, const uint8_t *buf, chipaddr addr, size_t len); uint8_t chip_readb(const struct flashctx *flash, const chipaddr addr); uint16_t chip_readw(const struct flashctx *flash, const chipaddr addr); uint32_t chip_readl(const struct flashctx *flash, const chipaddr addr); @@ -253,8 +253,8 @@ int max(int a, int b); void tolower_string(char *str); char *extract_param(const char *const *haystack, const char *needle, const char *delim); -int verify_range(struct flashctx *flash, uint8_t *cmpbuf, unsigned int start, unsigned int len); -int need_erase(uint8_t *have, uint8_t *want, unsigned int len, enum write_granularity gran); +int verify_range(struct flashctx *flash, const uint8_t *cmpbuf, unsigned int start, unsigned int len); +int need_erase(const uint8_t *have, const uint8_t *want, unsigned int len, enum write_granularity gran); char *strcat_realloc(char *dest, const char *src); void print_version(void); void print_buildinfo(void); @@ -263,7 +263,7 @@ int selfcheck(void); int doit(struct flashctx *flash, int force, const char *filename, int read_it, int write_it, int erase_it, int verify_it); int read_buf_from_file(unsigned char *buf, unsigned long size, const char *filename); -int write_buf_to_file(unsigned char *buf, unsigned long size, const char *filename); +int write_buf_to_file(const unsigned char *buf, unsigned long size, const char *filename); enum test_state { OK = 0, @@ -327,7 +327,7 @@ /* layout.c */ int register_include_arg(char *name); int process_include_args(void); -int read_romlayout(char *name); +int read_romlayout(const char *name); int normalize_romentries(const struct flashctx *flash); int build_new_image(const struct flashctx *flash, uint8_t *oldcontents, uint8_t *newcontents); void layout_cleanup(void); Modified: trunk/flashrom.c ============================================================================== --- trunk/flashrom.c Thu May 8 00:07:23 2014 (r1788) +++ trunk/flashrom.c Fri May 9 23:16:21 2014 (r1789) @@ -463,8 +463,7 @@ flash->pgm->par.chip_writel(flash, val, addr); } -void chip_writen(const struct flashctx *flash, uint8_t *buf, chipaddr addr, - size_t len) +void chip_writen(const struct flashctx *flash, const uint8_t *buf, chipaddr addr, size_t len) { flash->pgm->par.chip_writen(flash, buf, addr, len); } @@ -627,7 +626,7 @@ return usable_erasefunctions; } -int compare_range(uint8_t *wantbuf, uint8_t *havebuf, unsigned int start, unsigned int len) +static int compare_range(const uint8_t *wantbuf, const uint8_t *havebuf, unsigned int start, unsigned int len) { int ret = 0, failcount = 0; unsigned int i; @@ -671,7 +670,7 @@ * @len length of the verified area * @return 0 for success, -1 for failure */ -int verify_range(struct flashctx *flash, uint8_t *cmpbuf, unsigned int start, unsigned int len) +int verify_range(struct flashctx *flash, const uint8_t *cmpbuf, unsigned int start, unsigned int len) { uint8_t *readbuf = malloc(len); int ret = 0; @@ -710,7 +709,7 @@ } /* Helper function for need_erase() that focuses on granularities of gran bytes. */ -static int need_erase_gran_bytes(uint8_t *have, uint8_t *want, unsigned int len, unsigned int gran) +static int need_erase_gran_bytes(const uint8_t *have, const uint8_t *want, unsigned int len, unsigned int gran) { unsigned int i, j, limit; for (j = 0; j < len / gran; j++) { @@ -740,7 +739,7 @@ * @gran write granularity (enum, not count) * @return 0 if no erase is needed, 1 otherwise */ -int need_erase(uint8_t *have, uint8_t *want, unsigned int len, enum write_granularity gran) +int need_erase(const uint8_t *have, const uint8_t *want, unsigned int len, enum write_granularity gran) { int result = 0; unsigned int i; @@ -808,7 +807,7 @@ * in relation to the max write length of the programmer and the max write * length of the chip. */ -static unsigned int get_next_write(uint8_t *have, uint8_t *want, unsigned int len, +static unsigned int get_next_write(const uint8_t *have, const uint8_t *want, unsigned int len, unsigned int *first_start, enum write_granularity gran) { @@ -1211,8 +1210,7 @@ #endif } -int write_buf_to_file(unsigned char *buf, unsigned long size, - const char *filename) +int write_buf_to_file(const unsigned char *buf, unsigned long size, const char *filename) { #ifdef __LIBPAYLOAD__ msg_gerr("Error: No file I/O support in libpayload\n"); @@ -1456,8 +1454,7 @@ return 0; } -int erase_and_write_flash(struct flashctx *flash, uint8_t *oldcontents, - uint8_t *newcontents) +int erase_and_write_flash(struct flashctx *flash, uint8_t *oldcontents, uint8_t *newcontents) { int k, ret = 1; uint8_t *curcontents; Modified: trunk/ichspi.c ============================================================================== --- trunk/ichspi.c Thu May 8 00:07:23 2014 (r1788) +++ trunk/ichspi.c Fri May 9 23:16:21 2014 (r1789) @@ -1327,8 +1327,7 @@ return 0; } -static int ich_hwseq_write(struct flashctx *flash, uint8_t *buf, - unsigned int addr, unsigned int len) +static int ich_hwseq_write(struct flashctx *flash, const uint8_t *buf, unsigned int addr, unsigned int len) { uint16_t hsfc; uint16_t timeout = 100 * 60; Modified: trunk/it87spi.c ============================================================================== --- trunk/it87spi.c Thu May 8 00:07:23 2014 (r1788) +++ trunk/it87spi.c Fri May 9 23:16:21 2014 (r1789) @@ -108,7 +108,7 @@ unsigned char *readarr); static int it8716f_spi_chip_read(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len); -static int it8716f_spi_chip_write_256(struct flashctx *flash, uint8_t *buf, +static int it8716f_spi_chip_write_256(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len); static const struct spi_programmer spi_programmer_it87xx = { @@ -347,8 +347,7 @@ } /* Page size is usually 256 bytes */ -static int it8716f_spi_page_program(struct flashctx *flash, uint8_t *buf, - unsigned int start) +static int it8716f_spi_page_program(struct flashctx *flash, const uint8_t *buf, unsigned int start) { unsigned int i; int result; @@ -393,7 +392,7 @@ return 0; } -static int it8716f_spi_chip_write_256(struct flashctx *flash, uint8_t *buf, +static int it8716f_spi_chip_write_256(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len) { const struct flashchip *chip = flash->chip; Modified: trunk/layout.c ============================================================================== --- trunk/layout.c Thu May 8 00:07:23 2014 (r1788) +++ trunk/layout.c Fri May 9 23:16:21 2014 (r1789) @@ -45,7 +45,7 @@ static int num_include_args = 0; /* the number of valid include_args. */ #ifndef __LIBPAYLOAD__ -int read_romlayout(char *name) +int read_romlayout(const char *name) { FILE *romlayout; char tempstr[256]; @@ -102,7 +102,7 @@ #endif /* returns the index of the entry (or a negative value if it is not found) */ -int find_include_arg(const char *const name) +static int find_include_arg(const char *const name) { unsigned int i; for (i = 0; i < num_include_args; i++) { Modified: trunk/linux_spi.c ============================================================================== --- trunk/linux_spi.c Thu May 8 00:07:23 2014 (r1788) +++ trunk/linux_spi.c Fri May 9 23:16:21 2014 (r1789) @@ -43,7 +43,7 @@ unsigned char *rxbuf); static int linux_spi_read(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len); -static int linux_spi_write_256(struct flashctx *flash, uint8_t *buf, +static int linux_spi_write_256(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len); static const struct spi_programmer spi_programmer_linux = { @@ -179,8 +179,7 @@ (unsigned int)getpagesize()); } -static int linux_spi_write_256(struct flashctx *flash, uint8_t *buf, - unsigned int start, unsigned int len) +static int linux_spi_write_256(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len) { return spi_write_chunked(flash, buf, start, len, ((unsigned int)getpagesize()) - 4); Modified: trunk/m29f400bt.c ============================================================================== --- trunk/m29f400bt.c Thu May 8 00:07:23 2014 (r1788) +++ trunk/m29f400bt.c Fri May 9 23:16:21 2014 (r1789) @@ -28,8 +28,7 @@ functions. */ /* chunksize is 1 */ -int write_m29f400bt(struct flashctx *flash, uint8_t *src, unsigned int start, - unsigned int len) +int write_m29f400bt(struct flashctx *flash, const uint8_t *src, unsigned int start, unsigned int len) { int i; chipaddr bios = flash->virtual_memory; Modified: trunk/opaque.c ============================================================================== --- trunk/opaque.c Thu May 8 00:07:23 2014 (r1788) +++ trunk/opaque.c Fri May 9 23:16:21 2014 (r1789) @@ -40,7 +40,7 @@ return flash->pgm->opaque.read(flash, buf, start, len); } -int write_opaque(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len) +int write_opaque(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len) { return flash->pgm->opaque.write(flash, buf, start, len); } Modified: trunk/programmer.c ============================================================================== --- trunk/programmer.c Thu May 8 00:07:23 2014 (r1788) +++ trunk/programmer.c Fri May 9 23:16:21 2014 (r1789) @@ -78,8 +78,7 @@ return val; } -void fallback_chip_writen(const struct flashctx *flash, uint8_t *buf, - chipaddr addr, size_t len) +void fallback_chip_writen(const struct flashctx *flash, const uint8_t *buf, chipaddr addr, size_t len) { size_t i; for (i = 0; i < len; i++) Modified: trunk/programmer.h ============================================================================== --- trunk/programmer.h Thu May 8 00:07:23 2014 (r1788) +++ trunk/programmer.h Fri May 9 23:16:21 2014 (r1789) @@ -542,8 +542,8 @@ /* Optimized functions for this programmer */ int (*read)(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len); - int (*write_256)(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len); - int (*write_aai)(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len); + int (*write_256)(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len); + int (*write_aai)(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len); const void *data; }; @@ -551,8 +551,8 @@ const unsigned char *writearr, unsigned char *readarr); int default_spi_send_multicommand(struct flashctx *flash, struct spi_command *cmds); int default_spi_read(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len); -int default_spi_write_256(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len); -int default_spi_write_aai(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len); +int default_spi_write_256(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len); +int default_spi_write_aai(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len); int register_spi_programmer(const struct spi_programmer *programmer); /* The following enum is needed by ich_descriptor_tool and ich* code as well as in chipset_enable.c. */ @@ -611,7 +611,7 @@ /* Specific functions for this programmer */ int (*probe) (struct flashctx *flash); int (*read) (struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len); - int (*write) (struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len); + int (*write) (struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len); int (*erase) (struct flashctx *flash, unsigned int blockaddr, unsigned int blocklen); const void *data; }; @@ -624,7 +624,7 @@ void noop_chip_writeb(const struct flashctx *flash, uint8_t val, chipaddr addr); void fallback_chip_writew(const struct flashctx *flash, uint16_t val, chipaddr addr); void fallback_chip_writel(const struct flashctx *flash, uint32_t val, chipaddr addr); -void fallback_chip_writen(const struct flashctx *flash, uint8_t *buf, chipaddr addr, size_t len); +void fallback_chip_writen(const struct flashctx *flash, const uint8_t *buf, chipaddr addr, size_t len); uint16_t fallback_chip_readw(const struct flashctx *flash, const chipaddr addr); uint32_t fallback_chip_readl(const struct flashctx *flash, const chipaddr addr); void fallback_chip_readn(const struct flashctx *flash, uint8_t *buf, const chipaddr addr, size_t len); @@ -632,7 +632,7 @@ void (*chip_writeb) (const struct flashctx *flash, uint8_t val, chipaddr addr); void (*chip_writew) (const struct flashctx *flash, uint16_t val, chipaddr addr); void (*chip_writel) (const struct flashctx *flash, uint32_t val, chipaddr addr); - void (*chip_writen) (const struct flashctx *flash, uint8_t *buf, chipaddr addr, size_t len); + void (*chip_writen) (const struct flashctx *flash, const uint8_t *buf, chipaddr addr, size_t len); uint8_t (*chip_readb) (const struct flashctx *flash, const chipaddr addr); uint16_t (*chip_readw) (const struct flashctx *flash, const chipaddr addr); uint32_t (*chip_readl) (const struct flashctx *flash, const chipaddr addr); @@ -673,8 +673,8 @@ extern fdtype sp_fd; /* expose serialport_shutdown as it's currently used by buspirate */ int serialport_shutdown(void *data); -int serialport_write(unsigned char *buf, unsigned int writecnt); -int serialport_write_nonblock(unsigned char *buf, unsigned int writecnt, unsigned int timeout, unsigned int *really_wrote); +int serialport_write(const unsigned char *buf, unsigned int writecnt); +int serialport_write_nonblock(const unsigned char *buf, unsigned int writecnt, unsigned int timeout, unsigned int *really_wrote); int serialport_read(unsigned char *buf, unsigned int readcnt); int serialport_read_nonblock(unsigned char *c, unsigned int readcnt, unsigned int timeout, unsigned int *really_read); Modified: trunk/serial.c ============================================================================== --- trunk/serial.c Thu May 8 00:07:23 2014 (r1788) +++ trunk/serial.c Fri May 9 23:16:21 2014 (r1789) @@ -335,7 +335,7 @@ return 0; } -int serialport_write(unsigned char *buf, unsigned int writecnt) +int serialport_write(const unsigned char *buf, unsigned int writecnt) { #ifdef _WIN32 DWORD tmp = 0; @@ -470,7 +470,7 @@ /* Tries up to timeout ms to write writecnt characters from the array starting at buf. Returns * 0 on success, positive values on temporary errors (e.g. timeouts) and negative ones on permanent errors. * If really_wrote is not NULL, this function sets its contents to the number of bytes written successfully. */ -int serialport_write_nonblock(unsigned char *buf, unsigned int writecnt, unsigned int timeout, unsigned int *really_wrote) +int serialport_write_nonblock(const unsigned char *buf, unsigned int writecnt, unsigned int timeout, unsigned int *really_wrote) { int ret = 1; /* disable blocked i/o and declare platform-specific variables */ Modified: trunk/spi.c ============================================================================== --- trunk/spi.c Thu May 8 00:07:23 2014 (r1788) +++ trunk/spi.c Fri May 9 23:16:21 2014 (r1789) @@ -88,8 +88,7 @@ return spi_read_chunked(flash, buf, start, len, max_data); } -int default_spi_write_256(struct flashctx *flash, uint8_t *buf, - unsigned int start, unsigned int len) +int default_spi_write_256(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len) { unsigned int max_data = flash->pgm->spi.max_data_write; if (max_data == MAX_DATA_UNSPECIFIED) { @@ -135,8 +134,7 @@ * .write_256 = spi_chip_write_1 */ /* real chunksize is up to 256, logical chunksize is 256 */ -int spi_chip_write_256(struct flashctx *flash, uint8_t *buf, unsigned int start, - unsigned int len) +int spi_chip_write_256(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len) { return flash->pgm->spi.write_256(flash, buf, start, len); } @@ -162,8 +160,7 @@ } } -int spi_aai_write(struct flashctx *flash, uint8_t *buf, - unsigned int start, unsigned int len) +int spi_aai_write(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len) { return flash->pgm->spi.write_aai(flash, buf, start, len); } Modified: trunk/spi25.c ============================================================================== --- trunk/spi25.c Thu May 8 00:07:23 2014 (r1788) +++ trunk/spi25.c Fri May 9 23:16:21 2014 (r1789) @@ -876,8 +876,7 @@ return result; } -int spi_nbyte_program(struct flashctx *flash, unsigned int addr, uint8_t *bytes, - unsigned int len) +int spi_nbyte_program(struct flashctx *flash, unsigned int addr, const uint8_t *bytes, unsigned int len) { int result; /* FIXME: Switch to malloc based on len unless that kills speed. */ @@ -983,7 +982,7 @@ * FIXME: Use the chunk code from Michael Karcher instead. * Each page is written separately in chunks with a maximum size of chunksize. */ -int spi_write_chunked(struct flashctx *flash, uint8_t *buf, unsigned int start, +int spi_write_chunked(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len, unsigned int chunksize) { int rc = 0; @@ -1032,8 +1031,7 @@ * (e.g. due to size constraints in IT87* for over 512 kB) */ /* real chunksize is 1, logical chunksize is 1 */ -int spi_chip_write_1(struct flashctx *flash, uint8_t *buf, unsigned int start, - unsigned int len) +int spi_chip_write_1(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len) { unsigned int i; int result = 0; @@ -1049,7 +1047,7 @@ return 0; } -int default_spi_write_aai(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len) +int default_spi_write_aai(struct flashctx *flash, const uint8_t *buf, unsigned int start, unsigned int len) { uint32_t pos = start; int result; Modified: trunk/sst28sf040.c ============================================================================== --- trunk/sst28sf040.c Thu May 8 00:07:23 2014 (r1788) +++ trunk/sst28sf040.c Fri May 9 23:16:21 2014 (r1789) @@ -77,8 +77,7 @@ } /* chunksize is 1 */ -int write_28sf040(struct flashctx *flash, uint8_t *src, unsigned int start, - unsigned int len) +int write_28sf040(struct flashctx *flash, const uint8_t *src, unsigned int start, unsigned int len) { int i; chipaddr bios = flash->virtual_memory;

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Flashrom verbose log
by RGIAS MUG 09 May '14

09 May '14

Hi All, When i run flashrom utility in my linux kernel, i am getting No EEPROM/flash device found.... I attached the output of flashrom -V -p internal in samp.txt file... Could u help me in figuring out this issue....? Regards, Rajiv

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Re: [flashrom] [PATCH] dummyflasher.c: add an "empty" parameter and initialize with random bytes by default
by Carl-Daniel Hailfinger 09 May '14

09 May '14

Am 21.07.2011 17:54 schrieb Stefan Tauner: > previously the dummies were initialized to be empty (all ones), which makes writes skip > erasing altogether. with this patch the default is to fill it with random bytes instead and the > old behavior can be enforced with stating "empty=yes" on the command line. > > Signed-off-by: Stefan Tauner <stefan.tauner(a)student.tuwien.ac.at> > Does the following not work for you? dd if=/dev/urandom bs=1k count=4k of=oldimage.bin flashrom -p dummy:emulate=SST25VF032B,image=oldimage.bin -w newimage.bin Regards, Carl-Daniel -- http://www.hailfinger.org/

5 8

Re: [flashrom] [PATCH] Add programmer for the MSTAR I2C ISP protocol
by Stefan Tauner 08 May '14

08 May '14

On Thu, 8 May 2014 00:07:29 +0200 Idwer Vollering <vidwer(a)gmail.com> wrote: > Adding the lead developers to CC. And the mailing list... this should be public IMHO. > 2014-05-07 23:59 GMT+02:00 Alexandre Boeglin <alex(a)boeglin.org>: > > Le mardi 06 mai 2014 à 16:09, Alexandre Boeglin a écrit: > >> Le mardi 06 mai 2014 à 15:11, Idwer Vollering a écrit: > >> > However, using my Dell screen, every file written/read with -p > >> > mstarddc_spi will have the first byte rotated, so verify will always > >> > fail: > >> > >> I have other screens available, I'll check if they use MSTAR SoCs… > > > > Well, I tried with a BenQ FP93GX I had, which also seem to have the same > > ISP port. > > > > I tried to probe it, but with no luck. > > > > After closer inspection, it seems that I have the same rotation issue, > > even in the RES command, which makes it impossible to identify the flash > > chip: > > > > Probing for PMC Pm25LV010, 128 kB: programmer_map_flash_region: mapping > > flash chip from 0x00000000fffe0000 to 0x0000000000000000 > > RES returned 0x9d 0x7c 0x7f. probe_spi_res3: id1 0x9d7c, id2 0x7f > > > > It returns "0x9d 0x7c 0x7f", whereas I think it should return "0x7f 0x9d > > 0x7c"… > > > > But then, without documentation from MSTAR, I don't really know how to > > differentiate between screens that have the bug, and those that don't. We could add a programmer parameter and let the user decide/override until we understand this better. Does the DDC tunnel still work with a broken firmware or is an external programmer needed if the first try to modify the firmware fails and the SoC inside the device is reset? -- Kind regards/Mit freundlichen Grüßen, Stefan Tauner

2 1

nice Programm, but failed this time :(
by Benedikt Tissot 08 May '14

08 May '14

flashrom v0.9.7-r1711 on Linux 3.14.2-1-ARCH (x86_64) flashrom is free software, get the source code at http://www.flashrom.org Calibrating delay loop... OK. sh: dmidecode: Kommando nicht gefunden. dmidecode execution unsuccessful - continuing without DMI info Found chipset "Intel H77". Enabling flash write... Warning: BIOS region SMM protection is enabled! Warning: Setting Bios Control at 0xdc from 0x2a to 0x0b on H77 failed. New value is 0x2a. Warning: SPI Configuration Lockdown activated. PROBLEMS, continuing anyway Found Winbond flash chip "W25Q64.V" (8192 kB, SPI) at physical address 0xff800000. Reading old flash chip contents... done. Verifying flash... FAILED at 0x00002000! Expected=0x46, Found=0xff, failed byte count from 0x00000000-0x007fffff: 0x1dd50 [benneti@TiProdigy ~]$ sudo flashrom --programmer internal -f -w '/home/benneti/flashed.rom' flashrom v0.9.7-r1711 on Linux 3.14.2-1-ARCH (x86_64) flashrom is free software, get the source code at http://www.flashrom.org Calibrating delay loop... OK. sh: dmidecode: Kommando nicht gefunden. dmidecode execution unsuccessful - continuing without DMI info Found chipset "Intel H77". Enabling flash write... Warning: BIOS region SMM protection is enabled! Warning: Setting Bios Control at 0xdc from 0x2a to 0x0b on H77 failed. New value is 0x2a. Warning: SPI Configuration Lockdown activated. PROBLEMS, continuing anyway Found Winbond flash chip "W25Q64.V" (8192 kB, SPI) at physical address 0xff800000. Reading old flash chip contents... done. Erasing and writing flash chip... Transaction error! spi_block_erase_20 failed during command execution at address 0x180000 Reading current flash chip contents... done. spi_block_erase_52 failed during command execution at address 0x180000 Reading current flash chip contents... done. spi_block_erase_d8 failed during command execution at address 0x180000 Reading current flash chip contents... done. spi_chip_erase_60 failed during command execution Reading current flash chip contents... done. spi_chip_erase_c7 failed during command execution FAILED! Uh oh. Erase/write failed. Checking if anything changed. Good. It seems nothing was changed. Writing to the flash chip apparently didn't do anything. This means we have to add special support for your board, programmer or flash chip. Please report this on IRC at chat.freenode.net (channel #flashrom) or mail flashrom(a)flashrom.org, thanks! ------------------------------------------------------------------------------- You may now reboot or simply leave the machine running.

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Re: [flashrom] [PATCH] Reorganize shutting down.
by Stefan Tauner 08 May '14

08 May '14

On Fri, 30 Aug 2013 02:00:34 +0200 Stefan Tauner <stefan.tauner(a)student.tuwien.ac.at> wrote: > This was mainly driven by getting rid of cli_classic_abort_usage() in cli_classic.c. I forgot to mention something and give a rationale for it: Thereby we also get rid of teasing the user to run flashrom again to show usage information. If we think the user should see the usage information we should show it to him or at least a short syntax summary (which we pretty much lack currently: the programmer parameter syntax is not really well explained). (Small) GNU apps seem to favor printing a similar message like we do. nmap, rsync give their whole usage information which is a bit of a pain because it is so long (unlike flashrom's), ping and hd are examples that just print a syntax summary (but they lack a complete usage help). All of the above is stupid. :P Printing a wall of text does not help and is even counterproductive if one can not scroll. Printing how to print help is also a little bit silly if that help text is not very long anyway. The right™ thing in the case of flashrom is IMHO to print the complete usage help (after improving it to explain the programmer parameter syntax better). RFC. > > This makes the whole main function more consistent and fixes a myriad of > (theoretical) memory leaks. This slightly changes output in most error cases. > doit() stops calling programmer_shutdown() with this patch, beware. -- Kind regards/Mit freundlichen Grüßen, Stefan Tauner

2 1

[commit] r1788 - trunk
by repository service 08 May '14

08 May '14

Author: stefanct Date: Thu May 8 00:07:23 2014 New Revision: 1788 URL: http://flashrom.org/trac/flashrom/changeset/1788 Log: Remove programmer_shutdown() from doit(). Because the programmer initialization that has to be called way earlier and independently elsewhere, it does not make a lot of sense to deinit within doit(). Also, free the logfile name at the end of main() to catch more execution paths and because this moves it to the other cleanup instructions. Signed-off-by: Stefan Tauner <stefan.tauner(a)alumni.tuwien.ac.at> Acked-by: Stefan Tauner <stefan.tauner(a)alumni.tuwien.ac.at> Modified: trunk/cli_classic.c trunk/flashrom.c Modified: trunk/cli_classic.c ============================================================================== --- trunk/cli_classic.c Wed May 7 17:25:04 2014 (r1787) +++ trunk/cli_classic.c Thu May 8 00:07:23 2014 (r1788) @@ -338,8 +338,7 @@ if (logfile && check_filename(logfile, "log")) cli_classic_abort_usage(); if (logfile && open_logfile(logfile)) - return 1; - free(logfile); + cli_classic_abort_usage(); #endif /* !STANDALONE */ #if CONFIG_PRINT_WIKI == 1 @@ -522,8 +521,6 @@ */ programmer_delay(100000); ret |= doit(fill_flash, force, filename, read_it, write_it, erase_it, verify_it); - /* Note: doit() already calls programmer_shutdown(). */ - goto out; out_shutdown: programmer_shutdown(); @@ -539,6 +536,7 @@ free((char *)chip_to_probe); /* Silence! Freeing is not modifying contents. */ chip_to_probe = NULL; #ifndef STANDALONE + free(logfile); ret |= close_logfile(); #endif /* !STANDALONE */ return ret; Modified: trunk/flashrom.c ============================================================================== --- trunk/flashrom.c Wed May 7 17:25:04 2014 (r1787) +++ trunk/flashrom.c Thu May 8 00:07:23 2014 (r1788) @@ -413,6 +413,11 @@ return ret; } +/** Calls registered shutdown functions and resets internal programmer-related variables. + * Calling it is safe even without previous initialization, but further interactions with programmer support + * require a call to programmer_init() (afterwards). + * + * @return The OR-ed result values of all shutdown functions (i.e. 0 on success). */ int programmer_shutdown(void) { int ret = 0; @@ -1913,14 +1918,12 @@ if (chip_safety_check(flash, force, read_it, write_it, erase_it, verify_it)) { msg_cerr("Aborting.\n"); - ret = 1; - goto out_nofree; + return 1; } if (normalize_romentries(flash)) { msg_cerr("Requested regions can not be handled. Aborting.\n"); - ret = 1; - goto out_nofree; + return 1; } /* Given the existence of read locks, we want to unlock for read, @@ -1930,8 +1933,7 @@ flash->chip->unlock(flash); if (read_it) { - ret = read_flash_to_file(flash, filename); - goto out_nofree; + return read_flash_to_file(flash, filename); } oldcontents = malloc(size); @@ -2048,7 +2050,5 @@ out: free(oldcontents); free(newcontents); -out_nofree: - programmer_shutdown(); return ret; }

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