>Message: 2 >Date: Thu, 25 Sep 2008 16:50:27 +0300 >From: Felix Radensky <[EMAIL PROTECTED]> >Subject: [U-Boot] CFI driver and P33 64M flash >To: u-boot@lists.denx.de >Message-ID: <[EMAIL PROTECTED]> >Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>Hi, >'m running U-Boot 1.3.4 on custom 460EX based board, >equipped with 64M P33 flash (similar to Intel P30). See >http://www.numonyx.com/Documents/Datasheets/314749_P33_Discrete_DS.pdf<http://www.numonyx.com/Documents/Datasheets/314749_P33_Discrete_DS.pdf> >This flash is comprised internally of two 32M flashes. >I have the following declarations in configuration file: >#define CFG_FLASH_CFI /* The flash is CFI compatible */ >#define CFG_FLASH_CFI_DRIVER /* Use common CFI driver */ >#define CFG_FLASH_BANKS_LIST {CFG_FLASH_BASE} >#define CFG_MAX_FLASH_BANKS 1 /* max number of memory banks */ >#define CFG_MAX_FLASH_SECT 518 /* max number of sectors on one >chip */ >#define CFG_FLASH_USE_BUFFER_WRITE 1 /* use buffered writes (20x >faster) */ >#define CFG_FLASH_PROTECTION 1 /* use hardware flash >protection */ >#define CFG_FLASH_EMPTY_INFO /* print 'E' for empty sector on >flinfo */ >U-Boot identifies this flash as 32M flash. Below is debug output from >CFI driver: >FLASH: flash detect cfi >fwc addr fc000000 cmd f0 f0 8bit x 8 bit >fwc addr fc000000 cmd ff ff 8bit x 8 bit >fwc addr fc000055 cmd 98 98 8bit x 8 bit >is= cmd 51(Q) addr fc000010 is= 0 51 >fwc addr fc000555 cmd 98 98 8bit x 8 bit >is= cmd 51(Q) addr fc000010 is= 0 51 >fwc addr fc000000 cmd f0 f0f0 16bit x 8 bit >fwc addr fc000000 cmd ff ffff 16bit x 8 bit >fwc addr fc0000aa cmd 98 9898 16bit x 8 bit >is= cmd 51(Q) addr fc000020 is= 0051 5151 >fwc addr fc000aaa cmd 98 9898 16bit x 8 bit >is= cmd 51(Q) addr fc000020 is= 0051 5151 >fwc addr fc000000 cmd f0 00f0 16bit x 16 bit >fwc addr fc000000 cmd ff 00ff 16bit x 16 bit >fwc addr fc0000aa cmd 98 0098 16bit x 16 bit >is= cmd 51(Q) addr fc000020 is= 0051 0051 >is= cmd 52(R) addr fc000022 is= 0052 0052 >is= cmd 59(Y) addr fc000024 is= 0059 0059 >device interface is 1 >found port 2 chip 2 port 16 bits chip 16 bits >00 : 51 52 59 01 00 0a 01 00 00 00 00 23 36 85 95 08 QRY........#6... >10 : 09 0a 00 01 01 02 00 19 01 00 06 00 02 03 00 80 ................ >20 : 00 fe 00 00 02 00 00 00 00 ff ff ff ff fc 36 a4 ..............6. >fwc addr fc000000 cmd ff 00ff 16bit x 16 bit >fwc addr fc000000 cmd 90 0090 16bit x 16 bit >fwc addr fc000000 cmd ff 00ff 16bit x 16 bit >fwc addr fc0000aa cmd 98 0098 16bit x 16 bit >manufacturer is 1 >manufacturer id is 0x89 >device id is 0x22 >device id2 is 0x0 >cfi version is 0x3135 >size_ratio 1 port 16 bits chip 16 bits >found 2 erase regions >erase region 0: 0x00800003 >erase_region_count = 4 erase_region_size = 32768 >erase region 1: 0x020000fe >erase_region_count = 255 erase_region_size = 131072 >fwc addr fc000000 cmd ff 00ff 16bit x 16 bit >32 MB >What should I change in configuration/driver to get >all 64M of flash detected ? >Thanks a lot. >Felix. Hi Set the CFG_MAX_FLASH_SECT to 259 and adjust the sector size to 256K I think it should work than. -- Thanks & Regards Yusuf A Khan Multitech Software Systems Koramangala,Bangalore
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