On 11/23/2016 01:43 AM, Chris Packham wrote:
Hi,
I was just looking at what it would take to add the T2080 L2 cache to the mpc85xx_edac driver in Linux. At a cursory glance all the registers appear to be there so I figured I'd just add the appropriate entry to the of match table.
To my surprise I found that the compatible string in my device tree was overwritten with "cache". I've tracked this down to the CONFIG_SYS_FSL_QORIQ_CHASSIS2 implementation of ft_fixup_l2cache in u-boot.
The CONFIG_L2_CACHE version seems to take care to update the device tree node to
compatible = "fsl,t2080-l2-cache-controller", "cache";
but the CONFIG_SYS_FSL_QORIQ_CHASSIS2 version just sets this to
compatible = "cache";
Is this an over-site or is it intentional?
I don't have any record of this discussion. Kumar wrote and committed this change. I hope he remembers.
York