Author: stefanct Date: Fri Jul 1 02:39:23 2011 New Revision: 1362 URL: http://flashrom.org/trac/flashrom/changeset/1362
Log: ichspi.c: preserve reserved bits in address registers Signed-off-by: Stefan Tauner <[email protected]> Acked-by: Carl-Daniel Hailfinger <[email protected]> Modified: trunk/ichspi.c Modified: trunk/ichspi.c ============================================================================== --- trunk/ichspi.c Fri Jul 1 02:39:16 2011 (r1361) +++ trunk/ichspi.c Fri Jul 1 02:39:23 2011 (r1362) @@ -659,10 +659,11 @@ return 1; } - /* Programm Offset in Flash into FADDR */ - REGWRITE32(ICH7_REG_SPIA, (offset & 0x00FFFFFF)); /* SPI addresses are 24 BIT only */ + /* Program offset in flash into SPIA while preserving reserved bits. */ + temp32 = REGREAD32(ICH7_REG_SPIA) & ~0x00FFFFFF; + REGWRITE32(ICH7_REG_SPIA, (offset & 0x00FFFFFF) | temp32); - /* Program data into FDATA0 to N */ + /* Program data into SPID0 to N */ if (write_cmd && (datalength != 0)) { temp32 = 0; for (a = 0; a < datalength; a++) { @@ -803,8 +804,10 @@ return 1; } - /* Programm Offset in Flash into FADDR */ - REGWRITE32(ICH9_REG_FADDR, (offset & 0x00FFFFFF)); /* SPI addresses are 24 BIT only */ + /* Program offset in flash into FADDR while preserve the reserved bits + * and clearing the 25. address bit which is only useable in hwseq. */ + temp32 = REGREAD32(ICH9_REG_FADDR) & ~0x01FFFFFF; + REGWRITE32(ICH9_REG_FADDR, (offset & 0x00FFFFFF) | temp32); /* Program data into FDATA0 to N */ if (write_cmd && (datalength != 0)) { _______________________________________________ flashrom mailing list [email protected] http://www.flashrom.org/mailman/listinfo/flashrom
