Hello, all, I meet a strange problem of boot flash and want some advice here. I have searched the archives but with no result. So bear with me if this is too silly question. I designed a mpc860T(D4, 50Mhz)board. I used the ppcboot 0.9.2 as bootloader and the hardhat linux pe 2.1(with the kernel of 2.4.17). My board has a 2MB flash(intel te28f160c3-90) as bootrom,and everything works okay. Now i want to use a larger flash(intel te28f320c3-110, which is pin-to-pin compatible to te28f160 ).I mounted the flash on the board, and prog the ppcboot (in elf format) with my bdi2000.The erasing and programming operation works with no error found.Then i restart the board without bdi', i find minicom has no response. I check the board and find that the cpu's clockout is 25Mhz(i use a 5M clock in, and mf=5). It seems that the ppcboot in flash has not work at all. I then check the board with my bdi2000. Everything works okay. I read the datasheet of intel 28f160/320 c3 carefully, and do not find anything special to be treated. Here is my seting of bdi and in ppcboot,any suggestion is appreciated.
bdi configuration file: .. WM32 0xFF000100 0xFFE00801 ;BR0 WM32 0xFF000104 0xFFC00160 ;OR0 : 2MB, all accesses, CS early negate, 6ws, time relax .. ;unlock intel flash here WM16 0xFFe00000 0x0060 ;unlock block 0 WM16 0xFFe00000 0x00D0 WM16 0XFFE02000 0x0060 ;unlock block 0 WM16 0XFFE02000 0x00D0 WM16 0XFFE04000 0x0060 ;unlock block 0 WM16 0XFFE04000 0x00D0 WM16 0XFFE06000 0x0060 ;unlock block 0 WM16 0XFFE06000 0x00D0 WM16 0XFFE08000 0x0060 ;unlock block 0 WM16 0XFFE08000 0x00D0 WM16 0XFFE0a000 0x0060 ;unlock block 0 WM16 0XFFE0a000 0x00D0 WM16 0XFFE0c000 0x0060 ;unlock block 0 WM16 0XFFE0c000 0x00D0 WM16 0XFFE0e000 0x0060 ;unlock block 0 WM16 0XFFE0e000 0x00D0 WM16 0XFFE10000 0x0060 ;unlock block 0 WM16 0XFFE10000 0x00D0 WM16 0xFFe00000 0x0060 ;unlock block 0 WM16 0xFFe00000 0x00D0 WM16 0xFFe10000 0x0060 ;unlock block 1 WM16 0xFFe10000 0x00D0 WM16 0xFFe20000 0x0060 ;unlock block 0 WM16 0xFFe20000 0x00D0 WM16 0xFFe30000 0x0060 ;unlock block 1 WM16 0xFFe30000 0x00D0 .. [FLASH] CHIPTYPE I28BX16 ;Flash type (AM29F | AM29BX8 | AM29BX16 | I28BX8 | I28BX16|I28BX32) CHIPSIZE 0x400000 ;The size of one flash chip in bytes (e.g. AM29F010 = 0x20000) BUSWIDTH 16 ;The width of the flash memory bus in bits (8 | 16 | 32) configuration of ppcboot: #define CFG_REMAP_OR_AM 0xFFE00000 /* OR addr mask */ #define CFG_PRELIM_OR_AM 0xFFC00000 /* OR addr mask */ #define CFG_OR_TIMING_FLASH (OR_BI | OR_SCY_6_CLK) #define CFG_OR0_REMAP (CFG_REMAP_OR_AM | CFG_OR_TIMING_FLASH) #define CFG_OR0_PRELIM (CFG_PRELIM_OR_AM | CFG_OR_TIMING_FLASH) /* 16 bit, bank valid */ #define CFG_BR0_PRELIM ((FLASH_BASE & BR_BA_MSK) | BR_PS_16 | BR_V ) i make modification only in my configuration file, shall i change settings in other files? Best regards. Li Xiangrong lixiangrong at china.com 2002-12-06 ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
