Change Details

This patch introduces a function that adds missing arm,io-coherent property to Marvell Armada 38x pl310 cache controller node. It uses fdt_fixup_table processed by ofw_fdt_fixup function. This fix-up is a part of device tree alignment between device trees from FreeBSD and Linux. arm,io-coherent property is used there, but due to problems with coherent PL310 operation without CONFIG_SMP enabled, it's added to the device tree in runtime. This issue was not a problem in FreeBSD, but in order to be on par with sys/gnu/dts/arm files, introduce the fix-up.

Updating PL310 sotfware context sc_io_coherent field in platform_pl310_init() routine for Armada 38x helps to avoid using 'arm,io-coherent' property, which is by default not present in the device tree node in Linux. This way another step for DT unification between two operating systems is done. The improvemnt will also work after enabling PLATFORM for Marvell ARMv7 SoCs.

This patch introduces a function that adds missing arm,io-coherentUpdating PL310 sotfware context sc_io_coherent field in property to Marvellplatform_pl310_init() routine for Armada 38x pl310 cache controller node. It useshelps to avoid fdt_fixup_tableusing 'arm,io-coherent' processedperty, which is by ofw_fdt_fixup functiondefault not present in the device tree node in Linux. This fix-up is a part of device tree alignmentway another step for DT unification between device treestwo operating from FreeBSD and Linux. arm,io-coherent propertysystems is used there,done. butThe improvemnt will also work after enabling due to problems with coherent PL310 operation without CONFIG_SMP enabled, it's added to the device tree in runtime. This issue was not a problem in FreeBSD, but in order to be on par with sys/gnu/dts/arm files, introduce the fix-upPLATFORM for Marvell ARMv7 SoCs.