Hello, On 07/01/2012 10:21 PM, Marc Kleine-Budde wrote: > From: Hui Wang > > At least in the i.MX series, the flexcan contrller divides into ver_3 > and ver_10, current driver is for ver_3 controller. Has someone access to the freescale hardware people and can figure out the controller versions used on: imx28 imx25 imx35 imx53 Because I noticed that the FLEXCAN_CTRL_CLK_SRC bit (bit 13 of the FLEXCAN control register) is marked as reserved in the mx53 datasheet (although its meaning is documented) as well as in the imx6q. Is there a Changelog of this core available? > i.MX6 has ver_10 controller, it has more reigsters than ver_3 has. > The rxfgmask (Rx FIFO Global Mask) register is one of the new added. > Its reset value is 0xffffffff, this means ID Filter Table must be > checked when receive a packet, but the driver is designed to accept > everything during the chip start, we need to clear this register to > follow this design. > > Use the data entry of the struct of_device_id to point chip specific > info, we can set hardware version for each platform. cheers, 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 |