I'm back revisiting the CFI driver, and am wondering which of these is the intent of the sector protection for memory at (CFG_MONITOR_BASE + CFG_MONITOR_LEN - 1):
1) "MONITOR" refers to the bootloader _and_ environment 2) "MONITOR" refers to _just_ the bootloader
If 1, cfi_flash.c can stay as it is with:
/* Monitor protection ON by default */ #if (CFG_MONITOR_BASE >= CFG_FLASH_BASE) flash_protect (FLAG_PROTECT_SET, CFG_MONITOR_BASE, CFG_MONITOR_BASE + CFG_MONITOR_LEN - 1, &flash_info[0]); #endif
Otherwise, with 2, it should have a second block to protect the environment. This is only useful if it's common for boards to keep the bootloader and environment in non-contiguous segments of memory. Is that common?
-----Original Message----- From: Wolfgang Denk [mailto:wd@denx.de] Sent: Monday, July 19, 2004 5:06 PM To: Michael Bendzick Cc: U-Boot-Users (E-mail) Subject: Re: [U-Boot-Users] Environment Flash Sector Protection w/ cfi_flash.c?
In message 31ADFA827355984B9E2A161514595B561C32E8@lpdsrv04.logicpd.com you wrote:
I have noticed that when using the cfi_flash.c driver that the environment sector (the second sector, counting from one) in flash is not protected by default. When I was working with the omap1510inn board using its original flash.c driver, it would protect the environment in flash_init. Would it
be
good to add default to protection for the environment sector to
cfi_flash.c?
If this is whatis required to have the U-Boot image and the environment sector(s) protected, tthen yes.
Best regards,
Wolfgang Denk