[U-Boot] CFI driver and P33 64M flash
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.
On Thursday 25 September 2008, Felix Radensky wrote:
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.
Then you have to define 2 physical chips in your U-Boot configuration.
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 */
This will not work. Take a look at the lwmon5 configuration. It has a similar Intel FLASH which has two chips inside:
#define CFG_FLASH0 0xFC000000 #define CFG_FLASH1 0xF8000000 #define CFG_FLASH_BANKS_LIST { CFG_FLASH1, CFG_FLASH0 }
#define CFG_MAX_FLASH_BANKS 2
...
You need to change the addresses for your 32MB version though.
Hope this helps.
Best regards, Stefan
===================================================================== DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-0 Fax: +49-8142-66989-80 Email: office@denx.de =====================================================================
Dear Stefan Roese,
In message 200809251653.30832.sr@denx.de you wrote:
This will not work. Take a look at the lwmon5 configuration. It has a similar Intel FLASH which has two chips inside:
#define CFG_FLASH0 0xFC000000 #define CFG_FLASH1 0xF8000000 #define CFG_FLASH_BANKS_LIST { CFG_FLASH1, CFG_FLASH0 }
#define CFG_MAX_FLASH_BANKS 2
...
You need to change the addresses for your 32MB version though.
Please note that I really dislike such static configurations which will break as soon as the size of the flash banks changes.
Right from the begining U-Boot was always designed to allow for dynamic adjustment to the actual memory sizes found on the boards, and we should just use this capability.
Assuming a 32 bit configuration, above should rather be written as:
#define CFG_FLASH0 (0 - flash_info[0].size) #define CFG_FLASH1 (CFG_FLASH0 - flash_info[1].size) #define CFG_FLASH_BANKS_LIST { CFG_FLASH1, CFG_FLASH0 } ...
This may require a preliminary mapping of the flash banks that is then fixed after the CFI driver determined the real size; see for example how this was done for the TQM8xx* boards (of course this needs to be adapted for 4xx, but you get the idea).
Best regards,
Wolfgang Denk
Hi, Stefan
Stefan Roese wrote:
On Thursday 25 September 2008, Felix Radensky wrote:
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.
Then you have to define 2 physical chips in your U-Boot configuration.
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 */
This will not work. Take a look at the lwmon5 configuration. It has a similar Intel FLASH which has two chips inside:
#define CFG_FLASH0 0xFC000000 #define CFG_FLASH1 0xF8000000 #define CFG_FLASH_BANKS_LIST { CFG_FLASH1, CFG_FLASH0 }
#define CFG_MAX_FLASH_BANKS 2
...
You need to change the addresses for your 32MB version though.
Using 2 flash banks works fine. Thanks a lot for a prompt reply.
Felix.
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
participants (4)
-
Felix Radensky -
psdof -
Stefan Roese -
Wolfgang Denk