flashrom July 2011

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[commit] r1361 - trunk
by repository service 01 Jul '11

01 Jul '11

Author: stefanct Date: Fri Jul 1 02:39:16 2011 New Revision: 1361 URL: http://flashrom.org/trac/flashrom/changeset/1361 Log: ichspi.c: add FPB (Flash Partition Boundary) macros and init printing Signed-off-by: Stefan Tauner <stefan.tauner(a)student.tuwien.ac.at> Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006(a)gmx.net> Modified: trunk/ichspi.c Modified: trunk/ichspi.c ============================================================================== --- trunk/ichspi.c Fri Jul 1 02:39:09 2011 (r1360) +++ trunk/ichspi.c Fri Jul 1 02:39:16 2011 (r1361) @@ -131,6 +131,10 @@ #define ICH9_REG_BBAR 0xA0 /* 32 Bits BIOS Base Address Configuration */ #define BBAR_MASK 0x00ffff00 /* 8-23: Bottom of System Flash */ +#define ICH9_REG_FPB 0xD0 /* 32 Bits Flash Partition Boundary */ +#define FPB_FPBA_OFF 0 /* 0-12: Block/Sector Erase Size */ +#define FPB_FPBA (0x1FFF << FPB_FPBA_OFF) + // ICH9R SPI commands #define SPI_OPCODE_TYPE_READ_NO_ADDRESS 0 #define SPI_OPCODE_TYPE_WRITE_NO_ADDRESS 1 @@ -1324,6 +1328,9 @@ ichspi_bbar = mmio_readl(ich_spibar + ICH9_REG_BBAR); msg_pdbg("0xA0: 0x%08x (BBAR)\n", ichspi_bbar); + tmp = mmio_readl(ich_spibar + ICH9_REG_FPB); + msg_pdbg("0xD0: 0x%08x (FPB)\n", tmp); + ich_init_opcodes(); break; default:

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[commit] r1360 - trunk
by repository service 01 Jul '11

01 Jul '11

Author: stefanct Date: Fri Jul 1 02:39:09 2011 New Revision: 1360 URL: http://flashrom.org/trac/flashrom/changeset/1360 Log: ichspi.c: simplify ich_set_bbar Less code, documenting better what the differences are (i.e. offset of BBAR only). Signed-off-by: Stefan Tauner <stefan.tauner(a)student.tuwien.ac.at> Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006(a)gmx.net> Modified: trunk/ichspi.c Modified: trunk/ichspi.c ============================================================================== --- trunk/ichspi.c Fri Jul 1 02:39:01 2011 (r1359) +++ trunk/ichspi.c Fri Jul 1 02:39:09 2011 (r1360) @@ -555,43 +555,37 @@ * Try to set BBAR (BIOS Base Address Register), but read back the value in case * it didn't stick. */ -void ich_set_bbar(uint32_t minaddr) +static void ich_set_bbar(uint32_t min_addr) { - minaddr &= BBAR_MASK; + int bbar_off; switch (spi_programmer->type) { case SPI_CONTROLLER_ICH7: case SPI_CONTROLLER_VIA: - ichspi_bbar = mmio_readl(ich_spibar + 0x50) & ~BBAR_MASK; - if (ichspi_bbar) - msg_pdbg("Reserved bits in BBAR not zero: 0x%04x", - ichspi_bbar); - ichspi_bbar |= minaddr; - rmmio_writel(ichspi_bbar, ich_spibar + 0x50); - ichspi_bbar = mmio_readl(ich_spibar + 0x50); - /* We don't have any option except complaining. And if the write - * failed, the restore will fail as well, so no problem there. - */ - if (ichspi_bbar != minaddr) - msg_perr("Setting BBAR failed!\n"); + bbar_off = 0x50; break; case SPI_CONTROLLER_ICH9: - ichspi_bbar = mmio_readl(ich_spibar + ICH9_REG_BBAR) & ~BBAR_MASK; - if (ichspi_bbar) - msg_pdbg("Reserved bits in BBAR not zero: 0x%04x", - ichspi_bbar); - ichspi_bbar |= minaddr; - rmmio_writel(ichspi_bbar, ich_spibar + ICH9_REG_BBAR); - ichspi_bbar = mmio_readl(ich_spibar + ICH9_REG_BBAR); - /* We don't have any option except complaining. And if the write - * failed, the restore will fail as well, so no problem there. - */ - if (ichspi_bbar != minaddr) - msg_perr("Setting BBAR failed!\n"); + bbar_off = ICH9_REG_BBAR; break; default: msg_perr("Unknown chipset for BBAR setting!\n"); - break; + return; + } + + ichspi_bbar = mmio_readl(ich_spibar + bbar_off) & ~BBAR_MASK; + if (ichspi_bbar) { + msg_pdbg("Reserved bits in BBAR not zero: 0x%08x\n", + ichspi_bbar); } + min_addr &= BBAR_MASK; + ichspi_bbar |= min_addr; + rmmio_writel(ichspi_bbar, ich_spibar + bbar_off); + ichspi_bbar = mmio_readl(ich_spibar + bbar_off) & BBAR_MASK; + + /* We don't have any option except complaining. And if the write + * failed, the restore will fail as well, so no problem there. + */ + if (ichspi_bbar != min_addr) + msg_perr("Setting BBAR failed!\n"); } /* This function generates OPCODES from or programs OPCODES to ICH according to

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[commit] r1359 - trunk
by repository service 01 Jul '11

01 Jul '11

Author: stefanct Date: Fri Jul 1 02:39:01 2011 New Revision: 1359 URL: http://flashrom.org/trac/flashrom/changeset/1359 Log: ichspi.c: make REGWRITE* macros safer '+' does have a quite high precedence so "calling" those macros with a term including weaker operators in the off parameter may have unexpected consequences. Signed-off-by: Stefan Tauner <stefan.tauner(a)student.tuwien.ac.at> Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006(a)gmx.net> Modified: trunk/ichspi.c Modified: trunk/ichspi.c ============================================================================== --- trunk/ichspi.c Fri Jul 1 02:19:12 2011 (r1358) +++ trunk/ichspi.c Fri Jul 1 02:39:01 2011 (r1359) @@ -216,9 +216,9 @@ return mmio_readb(ich_spibar + X); } -#define REGWRITE32(off,val) mmio_writel(val, ich_spibar+off) -#define REGWRITE16(off,val) mmio_writew(val, ich_spibar+off) -#define REGWRITE8(off,val) mmio_writeb(val, ich_spibar+off) +#define REGWRITE32(off, val) mmio_writel(val, ich_spibar+(off)) +#define REGWRITE16(off, val) mmio_writew(val, ich_spibar+(off)) +#define REGWRITE8(off, val) mmio_writeb(val, ich_spibar+(off)) /* Common SPI functions */ static int find_opcode(OPCODES *op, uint8_t opcode);

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Re: [flashrom] [PATCH 2/3] add check_block_erasers which returns the number of well-defined erasers for a chip
by Carl-Daniel Hailfinger 01 Jul '11

01 Jul '11

Am 24.06.2011 16:53 schrieb Stefan Tauner: > This can be used in various situations (including one in the upcoming SFDP patch) and > removes one FIXME in current HEAD. Needed to move check_block_eraser (which checks a > single eraser) up to avoid (upcoming) forward declaration(s). > Since nobody objected to the "forward declarations" RFC, I think we can safely say that moving code around inside a file is a bad idea. Please kill that part. > Signed-off-by: Stefan Tauner <stefan.tauner(a)student.tuwien.ac.at> > --- > flashrom.c | 70 ++++++++++++++++++++++++++++++++++------------------------- > 1 files changed, 40 insertions(+), 30 deletions(-) > > diff --git a/flashrom.c b/flashrom.c > index 6979d84..aed10aa 100644 > --- a/flashrom.c > +++ b/flashrom.c > @@ @@ > +/* Returns the number of well-defined erasers for a chip. > + * The log parameter controls output. */ > +static int check_block_erasers(const struct flashchip *flash, int log) > Hm. Can you call it count_usable_erasers or count_usable_block_erasers instead? > +{ > + int usable_erasefunctions = 0; > + int k; > + for (k = 0; k < NUM_ERASEFUNCTIONS; k++) { > + if (!check_block_eraser(flash, k, 0)) > + usable_erasefunctions++; > + } > + return usable_erasefunctions; > +} > + > Rest looks good to me. Regards, Carl-Daniel -- http://www.hailfinger.org/

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[commit] r1358 - trunk
by repository service 01 Jul '11

01 Jul '11

Author: stefanct Date: Fri Jul 1 02:19:12 2011 New Revision: 1358 URL: http://flashrom.org/trac/flashrom/changeset/1358 Log: add count_usable_erasers which returns the number of well-defined erasers for a chip It solves one FIXME and consequentially allows to remove a later check right now, and is used in the upcoming SFDP patch. Adds a forward declaration of check_block_eraser. Signed-off-by: Stefan Tauner <stefan.tauner(a)student.tuwien.ac.at> Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006(a)gmx.net> Modified: trunk/flashrom.c Modified: trunk/flashrom.c ============================================================================== --- trunk/flashrom.c Sun Jun 26 22:45:35 2011 (r1357) +++ trunk/flashrom.c Fri Jul 1 02:19:12 2011 (r1358) @@ -465,6 +465,8 @@ */ static int may_register_shutdown = 0; +static int check_block_eraser(const struct flashchip *flash, int k, int log); + /* Register a function to be executed on programmer shutdown. * The advantage over atexit() is that you can supply a void pointer which will * be used as parameter to the registered function upon programmer shutdown. @@ -711,6 +713,19 @@ return extract_param(&programmer_param, param_name, ","); } +/* Returns the number of well-defined erasers for a chip. + * The log parameter controls output. */ +static unsigned int count_usable_erasers(const struct flashchip *flash, int log) +{ + unsigned int usable_erasefunctions = 0; + int k; + for (k = 0; k < NUM_ERASEFUNCTIONS; k++) { + if (!check_block_eraser(flash, k, 0)) + usable_erasefunctions++; + } + return usable_erasefunctions; +} + /* start is an offset to the base address of the flash chip */ int check_erased_range(struct flashchip *flash, int start, int len) { @@ -1467,7 +1482,7 @@ return 0; } -static int check_block_eraser(struct flashchip *flash, int k, int log) +static int check_block_eraser(const struct flashchip *flash, int k, int log) { struct block_eraser eraser = flash->block_erasers[k]; @@ -1496,18 +1511,9 @@ int k, ret = 0; uint8_t *curcontents; unsigned long size = flash->total_size * 1024; - int usable_erasefunctions = 0; + unsigned int usable_erasefunctions = count_usable_erasers(flash, 0); - for (k = 0; k < NUM_ERASEFUNCTIONS; k++) - if (!check_block_eraser(flash, k, 0)) - usable_erasefunctions++; msg_cinfo("Erasing and writing flash chip... "); - if (!usable_erasefunctions) { - msg_cerr("ERROR: flashrom has no erase function for this flash " - "chip.\n"); - return 1; - } - curcontents = (uint8_t *) malloc(size); /* Copy oldcontents to curcontents to avoid clobbering oldcontents. */ memcpy(curcontents, oldcontents, size); @@ -1825,7 +1831,11 @@ return 1; msg_cerr("Continuing anyway.\n"); } - /* FIXME: Check if at least one erase function exists. */ + if(count_usable_erasers(flash, 0) == 0) { + msg_cerr("flashrom has no erase function for this " + "flash chip.\n"); + return 1; + } } if (write_it) { if (flash->tested & TEST_BAD_WRITE) {

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flashrom July 2011