-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 06/17/2013 10:43 AM, Mark Jackson wrote: > On 13/05/13 19:28, Tom Rini wrote: >> From: Steve Kipisz <s-kipi...@ti.com> >> >> NOR requires that s_init be within the first 4KiB of the image so >> that we can perform the rest of the required pinmuxing to talk >> with the rest of NOR that we are found on. When NOR_BOOT is set >> we save our environment in NOR at 512KiB and a redundant copy at >> 768KiB. We avoid using SPL for this case and u-boot.bin is >> written directly to the start of NOR. > > I'm trying to get this up and running our NanoBone platform, but > I'm having no success. > > Using a non "NOR_BOOT" version, I can boot u-boot and read / write > to the NOR device (located at 0x08000000). > > So I've compiled my "NOR_BOOT" version and stored it at the start > of the flash device. > > But when I switch to booting from NOR (rather than SD) I get no > output on the serial console. > > Using an oscilloscope, I can see the NOR chip select is active for > a while (approx 350us), so *something* is trying to boot. > > How can I debug such an early part of the boot process ?
Did you copy the parts that setup the pinmuxing in s_init for NOR? - -- Tom -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBAgAGBQJRvyIDAAoJENk4IS6UOR1W0v4P/0Nudkj1/7PhxndIRr3z1pXa pbEDg3leDIiWHgoM5Z1Ruxti6s6l2LH+vzZ15Sl2XF4xrU8BQ6pxdBuMpbluiv2W ePr3P2iQ/C67pT5WqXwXO2uIXzTxtUWNc6VOcd1ejDUWfHOAPZjWa7ObpPnklc/o pGkN01xYuv+9Na/aLPVO2fB9KPE0t1xiVrAwReWaEGC8JaOMCN7XFslYjKSBOkRh yai3NycmR6N12JcZVvzpRkA5WbcI4GdGC0TK/RywmF3bP6DdgNmc1GMCfKyQRs0c h26S87AzUO4NyoEfecExLEhS8eP3LU0I5um2tp0kbLBOX/Wdy6hQ/Vn/LNGGFrDs +urLVetNZweznxlyDn+dtxvo7dEQyiiIHN0xzOVwONUhz9mTnhDk8HBQAPRAqwOK PVom+jNaG9UYxks4S0qjJvSiJR4VqvYdlOqMxwfPphIb0Nt1a/cVnhm7PCwWvvw2 q3bOAxq11+5aRDeBCOG+8rdFqotgXZ7ig4vwFb5qg4AFJE7wbJLoyAgxhO2o4KNe Opa8DZsA4Joier1tC2fVuqPcl00tsg9JOqMDug4pgKyCz0EGWtREgy4/KKLT0/9J JBXrv6h3D+tfUbNjNR7b5seMhK3WxYAMQQwgDGSLgs5Vwnydz5iI0Vp3xH21HSar 2SxW1hU4pMkAjBm2V4OA =BJ51 -----END PGP SIGNATURE----- _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
