i.MX Processors中的主题 Loading bootloader on iMX27 https://community.nxp.com/t5/i-MX-Processors/Loading-bootloader-on-iMX27/m-p/195893#M10391 <HTML><HEAD></HEAD><BODY><P>I have an iMX27 board on which I need to upload the barebox bootloader (on a NAND memory).</P><P>Right now, the procedure we're using is like this:</P><OL><LI>load the bootloader (barebox) through JTAG, the barebox elf is started at 0xaf700000</LI><LI>run the board, and stop barebox at the prompt</LI><LI>upload barebox.ini through kermit (very slow)</LI><LI>copy barebox.bin on /dev/self0</LI><LI>reboot into the new barebox</LI></OL><P>We'd like the process to be quicker, and we tried:</P><OL><LI>tftp: the elf barebox seems to reset the board just after having set up phy0... (the elf is the same as the bin, and the bin works correctly)</LI><LI>copying from memory the running barebox. To do so, I defined a partition in /dev/mem which starts at 0xaf700000 and is 256k long, then I copied it to /dev/self0<BR />This too doesn't work</LI><LI>Using the hex representation of barebox.bin and booting from there: after reset we get back to a frozen cpu</LI></OL><P>Is there any quicker way you're aware of? Of course I shouldn't change boot mode, I don't have access to those pins on the board, I should just find a better method.</P><P></P><P>Thank you in advance</P></BODY></HTML> Fri, 16 Dec 2011 12:36:37 GMT metiu 2011-12-16T12:36:37Z Loading bootloader on iMX27 https://community.nxp.com/t5/i-MX-Processors/Loading-bootloader-on-iMX27/m-p/195893#M10391 <HTML><HEAD></HEAD><BODY><P>I have an iMX27 board on which I need to upload the barebox bootloader (on a NAND memory).</P><P>Right now, the procedure we're using is like this:</P><OL><LI>load the bootloader (barebox) through JTAG, the barebox elf is started at 0xaf700000</LI><LI>run the board, and stop barebox at the prompt</LI><LI>upload barebox.ini through kermit (very slow)</LI><LI>copy barebox.bin on /dev/self0</LI><LI>reboot into the new barebox</LI></OL><P>We'd like the process to be quicker, and we tried:</P><OL><LI>tftp: the elf barebox seems to reset the board just after having set up phy0... (the elf is the same as the bin, and the bin works correctly)</LI><LI>copying from memory the running barebox. To do so, I defined a partition in /dev/mem which starts at 0xaf700000 and is 256k long, then I copied it to /dev/self0<BR />This too doesn't work</LI><LI>Using the hex representation of barebox.bin and booting from there: after reset we get back to a frozen cpu</LI></OL><P>Is there any quicker way you're aware of? Of course I shouldn't change boot mode, I don't have access to those pins on the board, I should just find a better method.</P><P></P><P>Thank you in advance</P></BODY></HTML> Fri, 16 Dec 2011 12:36:37 GMT https://community.nxp.com/t5/i-MX-Processors/Loading-bootloader-on-iMX27/m-p/195893#M10391 metiu 2011-12-16T12:36:37Z