Hi,
I have a similar p30 intel 64M flash.When I try to initialize both banks at 0x20000000 and 0x22000000, u-boot crashes while initializing second bank at 0x22000000, i debugged and found out that u-boot couldn't sucessfully write to second bank. But when i plug in the debugger to my board i can see and use the second bank starting at 0x22000000. Though if i initialize only first bank everything runs normal but i am left with 32Mb of space.
I am going bonkers over this, please help .
Felix Radensky wrote:
Hi,
I'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
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. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot