On 07/25/2014 12:49 PM, Wolfram Sang wrote: > Am 25-07-2014 08:19, schrieb Mugunthan V N: >> From: George Cherian <george.cher...@ti.com> >> >> The raminit register is shared register for both can0 and can1. >> Using devm_ioremap_resource fails the mapping for can1 interface >> leading to a non functional can interface. >> >> Signed-off-by: George Cherian <george.cher...@ti.com> >> Signed-off-by: Mugunthan V N <mugunthan...@ti.com> > > The patch is a hack, or? It simply works because we drop all sanity > checking on the resource.
Well, thinking about it, yes, a bit. > I am on holiday and can't really check, yet I believe the AM335x has > devicetree support for accessing single bits in SYSCONF. This is what > needs to be applied here, too, AFAICT. I cannot find any generic driver for the sysconf, USB and Ethernet have an extra driver for their shared register space. I think the d_can can access the raminit register via a syscon driver. Enjoy your holiday :) Marc -- Pengutronix e.K. | Marc Kleine-Budde | Industrial Linux Solutions | Phone: +49-231-2826-924 | Vertretung West/Dortmund | Fax: +49-5121-206917-5555 | Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de |
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