From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shamile Khan Date: 29 Jan 2004 19:48:37 -0500 Subject: [U-Boot-Users] environment not being used Message-ID: <1075423717.18221.233.camel@localhost.localdomain> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi, I am using U-boot on our FPGA based board. Currently, its not possible to execute instructions directly from flash on our board since our flash device is configured as an 8-bit device and it is connected to a 32-bit processor bus. To get around this, we have a small program which is stored in FPGA bitstream and runs in FPGA on-chip memory (called BRAM). This program copies u-boot binary image from flash to sdram and jumps to it. This allows U-boot to run. However the problem is that the environment variables saved in flash are not being used even though U-boot has been configured with the CFG_ENV_IS_IN_FLASH option turned on. CFG_FLASH_BASE has been set to the flash base address of u-boot and when I use saveenv the environment is saved at the proper offset CFG_ENV_OFFSET. The only thing thats a bit different for my U-boot configuration is that CFG_MONITOR_BASE is set to the sdram base address where U-boot starts executing from instead of being set to CFG_FLASH_BASE. Any ideas why the environment variables in flash do not get used? Thanks, Shamile