Author: uwe Date: 2008-09-26 15:19:02 +0200 (Fri, 26 Sep 2008) New Revision: 3602
Modified: trunk/util/flashrom/Makefile trunk/util/flashrom/en29f002a.c trunk/util/flashrom/flash.h trunk/util/flashrom/flashchips.c Log: Activate proper support for EN29F002(A)(N)[BT].
Fully tested for Probe/Read/Erase/Write on EN29F002NT. Jedec subroutines 'probe_jedec()' and 'erase_chip_jedec()' are still in use, but a tailored 'write_en29f002a()' is needed due to a byte wise writing mechanism for this chip.
Signed-off-by: Mats Erik Andersson mats.andersson@gisladisker.se Acked-by: Uwe Hermann uwe@hermann-uwe.de
Modified: trunk/util/flashrom/Makefile =================================================================== --- trunk/util/flashrom/Makefile 2008-09-26 11:21:21 UTC (rev 3601) +++ trunk/util/flashrom/Makefile 2008-09-26 13:19:02 UTC (rev 3602) @@ -26,7 +26,7 @@
OBJS = chipset_enable.o board_enable.o udelay.o jedec.o stm50flw0x0x.o \ sst28sf040.o am29f040b.o mx29f002.o sst39sf020.o m29f400bt.o \ - w49f002u.o 82802ab.o pm49fl00x.o sst49lf040.o \ + w49f002u.o 82802ab.o pm49fl00x.o sst49lf040.o en29f002a.o \ sst49lfxxxc.o sst_fwhub.o layout.o cbtable.o flashchips.o \ flashrom.o w39v080fa.o sharplhf00l04.o w29ee011.o spi.o it87spi.o \ ichspi.o w39v040c.o
Modified: trunk/util/flashrom/en29f002a.c =================================================================== --- trunk/util/flashrom/en29f002a.c 2008-09-26 11:21:21 UTC (rev 3601) +++ trunk/util/flashrom/en29f002a.c 2008-09-26 13:19:02 UTC (rev 3602) @@ -19,12 +19,17 @@ */
/* - EN29F512 has 1C,21 - EN29F010 has 1C,20 - EN29F040A has 1C,04 - EN29LV010 has 1C,6E and uses short F0 reset sequence - EN29LV040(A) has 1C,4F and uses short F0 reset sequence + * EN29F512 has 1C,21 + * EN29F010 has 1C,20 + * EN29F040A has 1C,04 + * EN29LV010 has 1C,6E and uses short F0 reset sequence + * EN29LV040(A) has 1C,4F and uses short F0 reset sequence */ + +#include <stdio.h> +#include <stdint.h> +#include "flash.h" + int probe_en29f512(struct flashchip *flash) { volatile uint8_t *bios = flash->virtual_memory; @@ -53,9 +58,11 @@ }
/* - EN29F002AT has 1C,92 - EN29F002AB has 1C,97 + * EN29F002AT has 1C,92 + * EN29F002AB has 1C,97 */ + +/* This does not seem to function properly for EN29F002NT. */ int probe_en29f002a(struct flashchip *flash) { volatile uint8_t *bios = flash->virtual_memory; @@ -83,3 +90,35 @@ return 0; }
+/* The EN29F002 chip needs repeated single byte writing, no block writing. */ +int write_en29f002a(struct flashchip *flash, uint8_t *buf) +{ + int i; + int total_size = flash->total_size * 1024; + volatile uint8_t *bios = flash->virtual_memory; + volatile uint8_t *dst = bios; + + // *bios = 0xF0; + myusec_delay(10); + erase_chip_jedec(flash); + + printf("Programming page: "); + for (i = 0; i < total_size; i++) { + /* write to the sector */ + if ((i & 0xfff) == 0) + printf("address: 0x%08lx", (unsigned long)i); + *(bios + 0x5555) = 0xAA; + *(bios + 0x2AAA) = 0x55; + *(bios + 0x5555) = 0xA0; + *dst++ = *buf++; + + /* wait for Toggle bit ready */ + toggle_ready_jedec(dst); + + if ((i & 0xfff) == 0) + printf("\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"); + } + + printf("\n"); + return 0; +}
Modified: trunk/util/flashrom/flash.h =================================================================== --- trunk/util/flashrom/flash.h 2008-09-26 11:21:21 UTC (rev 3601) +++ trunk/util/flashrom/flash.h 2008-09-26 13:19:02 UTC (rev 3602) @@ -435,6 +435,11 @@ int erase_29f040b(struct flashchip *flash); int write_29f040b(struct flashchip *flash, uint8_t *buf);
+/* en29f002a.c */ +int probe_en29f002a(struct flashchip *flash); +int erase_en29f002a(struct flashchip *flash); +int write_en29f002a(struct flashchip *flash, uint8_t *buf); + /* ichspi.c */ 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);
Modified: trunk/util/flashrom/flashchips.c =================================================================== --- trunk/util/flashrom/flashchips.c 2008-09-26 11:21:21 UTC (rev 3601) +++ trunk/util/flashrom/flashchips.c 2008-09-26 13:19:02 UTC (rev 3602) @@ -47,8 +47,8 @@ {"AMIC", "A29040B", AMIC_ID_NOPREFIX, AMIC_A29040B, 512, 64 * 1024, TEST_OK_PR, probe_29f040b, erase_29f040b, write_29f040b}, {"AMIC", "A49LF040A", AMIC_ID_NOPREFIX, AMIC_A49LF040A, 512, 64 * 1024, TEST_OK_PREW, probe_49fl00x, erase_49fl00x, write_49fl00x}, {"EMST", "F49B002UA", EMST_ID, EMST_F49B002UA, 256, 4096, TEST_UNTESTED, probe_jedec, erase_chip_jedec, write_49f002}, - {"EON", "EN29F002(A)(N)B", EON_ID, EN_29F002B, 256, 256, TEST_UNTESTED, probe_jedec, erase_chip_jedec, write_jedec}, - {"EON", "EN29F002(A)(N)T", EON_ID, EN_29F002T, 256, 256, TEST_UNTESTED, probe_jedec, erase_chip_jedec, write_jedec}, + {"EON", "EN29F002(A)(N)B", EON_ID, EN_29F002B, 256, 256, TEST_UNTESTED, probe_jedec, erase_chip_jedec, write_en29f002a}, + {"EON", "EN29F002(A)(N)T", EON_ID, EN_29F002T, 256, 256, TEST_OK_PREW, probe_jedec, erase_chip_jedec, write_en29f002a}, {"Fujitsu", "MBM29F400TC", FUJITSU_ID, MBM29F400TC_STRANGE, 512, 64 * 1024, TEST_UNTESTED, probe_m29f400bt, erase_m29f400bt, write_coreboot_m29f400bt}, {"Intel", "82802AB", INTEL_ID, 173, 512, 64 * 1024, TEST_OK_PREW, probe_82802ab, erase_82802ab, write_82802ab}, {"Intel", "82802AC", INTEL_ID, 172, 1024, 64 * 1024, TEST_OK_PREW, probe_82802ab, erase_82802ab, write_82802ab},