From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from majordomo by infradead.org with local (Exim 3.20 #2) id 14ZfmH-0004XQ-00 for mtd-list@infradead.org; Sun, 04 Mar 2001 21:10:53 +0000 Received: from shell9.ba.best.com ([206.184.139.140] ident=root) by infradead.org with esmtp (Exim 3.20 #2) id 14ZfmF-0004XK-00 for mtd@infradead.org; Sun, 04 Mar 2001 21:10:51 +0000 Received: (from subodh@localhost) by shell9.ba.best.com (8.9.3/8.9.2/best.sh) id NAA07230 for mtd@infradead.org; Sun, 4 Mar 2001 13:09:51 -0800 (PST) From: Subodh Nijsure Message-Id: <200103042109.NAA07230@shell9.ba.best.com> Subject: What should value of CONFIG_MTD_CFIB* be? To: mtd@infradead.org Date: Sun, 4 Mar 2001 13:09:51 -0800 (PST) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-mtd@infradead.org List-ID: [I am very much a novice when it comes flash..] In the latest MTD code ( from infradead CVS ) there are few #defines are introduced CONFIG_MTD_CFI_B1, B2,B3 and CONFIG_MTD_CFI_I1. What should my values be for above variables if my hardware is two Intel 28F160S3 (sector size 64K) flash devices, configured to operate in 16-bit mode giving me 4Mb, 32-bit wide memory? This is how my MTD config looks like and cfi_probe is not able to detect these intel chips. # # Linearly Mapped Flash Device Drivers # CONFIG_MTD_CFI=y # CONFIG_MTD_CFI_GEOMETRY is not set # CONFIG_MTD_CFI_INTELEXT is not set # CONFIG_MTD_CFI_AMDSTD is not set # CONFIG_MTD_SHARP is not set CONFIG_MTD_PHYSMAP=y CONFIG_MTD_PHYSMAP_START=28000000 CONFIG_MTD_PHYSMAP_LEN=400000 CONFIG_MTD_PHYSMAP_BUSWIDTH=4 # CONFIG_MTD_NORA is not set # CONFIG_MTD_PNC2000 is not set # CONFIG_MTD_RPXLITE is not set # CONFIG_MTD_SBC_MEDIAGX is not set # CONFIG_MTD_ELAN_104NC is not set # CONFIG_MTD_SA1100 is not set # CONFIG_MTD_DC21285 is not set CONFIG_MTD_CSTM_CFI_JEDEC=y CONFIG_MTD_JEDEC=y # CONFIG_MTD_MIXMEM is not set # CONFIG_MTD_OCTAGON is not set # CONFIG_MTD_VMAX is not set /Subodh p.s. In my bootrom I have command called flashcfi where I have code, I am able to read Q R Y when I send READ QUERY command 00980098 Retrieve cfi info assuming flash base is BASE0=0X28000000 In function flash_retrieve_cfi_info Clear any status register info Writing @0x28000000 value 00500050 Put flash into READ ID mode Writing @0x28000000 value 00900090 Put flash into READ QUERY mode Writing @0x28000000 value 00980098 Reading at 28000040 value 'Q' Reading at 28000044 value 'R' Reading at 28000048 value 'Y' Flash CFI Info found!! manufacturer_code (flash_info.manufacturer_code) = 0xb0 (0xb0) device_code flash_info.device_code = 0xd0 (0xd0) cfi_ident = flash_info.cfi_ident QRY is_cfi_supported = flash_info.is_cfi_supported 1 primary_vendor_command_code flash_info.primary_vendor_command_code = 0x01 primary_extended_query_table flash_info.primary_extended_query_table = 0x31 alternate_vendor_command_code = flash_info.alternate_vendor_command_code 0x00 alternate_extended_query_table = flash_info.alternate_extended_query_table 0x00 flash_info.device_size is flash_info.device_size 0x15 device_size = 0x15 (2097152 bytes, 2 MB, 16 Mb) x8_async_ifc flash_info.x8_async_ifc = 0x2 x16_async_ifc flash_info.x16_async_ifc = 0x0 max_write_buffer_size flash_info.max_write_buffer_size = 5 (32 bytes) num_erase_block_regions flash_info.num_erase_block_regions = 1 num_erase_blocks_r1 flash_info.num_erase_blocks_r1 = 0x1f (31 blocks) size_erase_blocks_r1 flash_info.size_erase_blocks_r1 = 0x100 (65536 bytes) flash_info.vcc_min_program_erase 48 flash_info.vcc_max_program_erase 85 flash_info.vpp_min_program_erase 48 flash_info.vpp_min_program_erase 85 vcc_min_program_erase flash_info.vcc_min_program_erase 3.0 V vcc_max_program_erase = 5.5 V vpp_min_program_erase = 3.0 V vpp_max_program_erase = 5.5 V flash_info.typ_single_word_timeout = 3 flash_info.typ_max_buffer_write_timeout = 6 flash_info.typ_block_erase_timeout = 10 flash_info.typ_full_chip_erase_timeout = 15 typ_single_word_timeout = 3 (8 usec) typ_max_buffer_write_timeout = 6 (64 usec) typ_block_erase_timeout = 10 (1024 msec) typ_full_chip_erase_timeout = 15 (32768 msec) flash_info.max_word_program_timeout = 4 flash_info.max_buffer_write_timeout = 4 flash_info.max_block_erase_timeout = 4 flash_info.max_chip_erase_timeout = 4 max_word_program_timeout = 4 (128 usec) max_buffer_write_timeout = 4 (1024 usec) max_block_erase_timeout = 4 (16384 msec) max_chip_erase_timeout = 4 (524288 msec) To unsubscribe, send "unsubscribe mtd" to majordomo@infradead.org