From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tom Rini Date: Sun, 12 May 2013 17:42:22 -0400 Subject: [U-Boot] [PATCH 6/6] am335x_evm: Add support to boot from NOR. In-Reply-To: <87fvxrvq5l.fsf@dell.be.48ers.dk> References: <1368053157-28317-1-git-send-email-trini@ti.com> <1368053157-28317-6-git-send-email-trini@ti.com> <87fvxrvq5l.fsf@dell.be.48ers.dk> Message-ID: <51900CBE.7050009@ti.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 05/12/2013 05:34 PM, Peter Korsgaard wrote: >>>>>> "Tom" == Tom Rini writes: > > Tom> From: Steve Kipisz Tom> NOR requires that > s_init be within the first 4KiB of the image so that Tom> we can > perform the rest of the required pinmuxing to talk with the rest > Tom> of NOR that we are found on. When NOR_BOOT is set we save our > Tom> environment in NOR at 512KiB and a redundant copy at 768KiB. > > Why not use SPL when booting from NOR as well? You still want to > relocate into DDR. Frankly, I'm allergic to SPL for NOR. It's the historical and well understood case, we're r/o until we move from flash to DDR. And it is fast enough here at least that it doesn't seem like we'd gain on falcon mode like we do on other medium. - -- Tom -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBAgAGBQJRkAy9AAoJENk4IS6UOR1WxigP/1S8n8bVGDSsBR89VR3ned+9 MXaIGwzm449ifV28VI0R8NrnEi/GLrcPBVBdaKkaJuHI/rsApX4hAmYxYIVT7JeK mCPARP/ZxLoGWLqsfTMqfuoGcqzhBU0tOWHZ2WiGr/lf3ChMR4yw/O/HjD1R4Ew+ 46EVMfgte5AQ11Xv47vdMrG8i15WbPDqotYA/gRUlz/bpBGSXkZpmFHyXzfH7NE2 3buO3V+Z76dLUMaWgetFg5gGtbJ6EVhC1oZKWgPym46h63HwMhhtl8APGS1goE+j 8ilKilQZEKQz9bh4t3jhQcCYqvG3YFY/xvjq10dviujVBD173dd4AI63S0PyN3gV 1m1nwdlkUZfGQqsQpq2fiJ2MgD78hKomsrszz6+Rqdy20bDTdWQXERjTUWnc2UGg tcF2OzIe63W+RFgnY+9jkYsYnj+NofJYgeD2prFc5/mT5ObPeQKSUQ7c5ZMMjibo aZ+XwknoBjv76YgPzdUZADkazqnbHiXf0ulPjpviOjSK9Gh+WhLArTQuwQkWjGEi 1CTlvJspb8UcxNycNl9sYdVVtRNO/80UM/vwjvwPHsrsdSUQuo0GVcuhq/YQxhw6 CnA2jUFLsODdROauLTdee5e1F2tZKtGSFWe6qy09C5kTWoc+9g3HN0ix+Q64JSVO nN3t5RKPCLleQxV0V44E =lkA1 -----END PGP SIGNATURE-----