[U-Boot] i2c: mxc: refactor i2c driver and support dm

[Peng Fan]

Hi Jagan,
On Mon, Oct 17, 2016 at 04:47:11PM +0530, Jagan Teki wrote:
>Hi Peng/all,
>
>Observed an issue while setting the bus on mxc_i2c driver
>addr = dev_get_addr(bus); is getting failed to get invalid address.
>
>Commit details:
>"i2c: mxc: refactor i2c driver and support dm"
>(sha1: 71204e95ce13228a0c742cce137c3238f64581d8)
>
>Log:
>icorem6qdl> i2c bus
>Bus 0:  i2c at 021a0000
>Bus 1:  i2c at 021a4000
>icorem6qdl> i2c dev 0
>Setting bus to 0
>cmd_i2c_set_bus_num: Trying bus 0
>mxc_i2c_probe
>0. mxc_i2c_probe
>dev_get_addr_index: OF_TRANSLATE
>dev_get_addr_index: i2c at 021a0000 - 0xffffffff
>cmd_i2c_set_bus_num: No bus 0
>Failure changing bus number (-19)
>
>Any help? did you tested on any board?

It works well on i.MX6ULL 14x14 EVK board.
"
=> i2c bus
Bus 0:  i2c at 021a0000
Bus 1:  i2c at 021a4000
=> i2c dev 0
Setting bus to 0
i2c bus 0 at 35258368, no gpio pinctrl state.
=> i2c probe
Valid chip addresses: 0E 1E
=> i2c dev 1
Setting bus to 1
i2c bus 1 at 35274752, no gpio pinctrl state.
=> i2c probe
Valid chip addresses: 1A
=> i2c bus
Bus 0:  i2c at 021a0000  (active 0)
0e: generic_e, offset len 1, flags 0
1e: generic_1e, offset len 1, flags 0
Bus 1:  i2c at 021a4000  (active 1)
1a: generic_1a, offset len 1, flags 0
"

Add alias, and have a try.
 aliases {
         i2c0 = &i2c1;                                                   
         i2c1 = &i2c2;
 };


Regards,
Peng.

>
>thanks!
>-- 
>Jagan Teki
>Free Software Engineer | www.openedev.com
>U-Boot, Linux | Upstream Maintainer
>Hyderabad, India.
>_______________________________________________
>U-Boot mailing list
>U-Boot at lists.denx.de
>http://lists.denx.de/mailman/listinfo/u-boot