Hi Anup,
On Wed, Jun 19, 2019 at 3:01 PM Anup Patel Anup.Patel@wdc.com wrote:
This series update SiFive Unleashed clock driver so that:
- It is in sync with upstream Linux driver
- It uses latest DT bindings as-per upstream Linux driver
With this series, we can now use latest DT bindings with U-Boot. I have tested SiFive Serial driver and Cadence MACB ethernet driver with this changes and both work fine.
The legacy FSBL will still pass DTB to U-Boot with older DT bindings which will break the updated SiFive Unleashed clock driver. To tackle this, we have embedded DTB in OpenSBI FW_PAYLOAD firmware for SiFive Unleashed so that OpenSBI will override and pass updated DTB to U-Boot.
In fact, the updated DTB passed by OpenSBI can be used by latest Linux (i.e. V5.2-rc1 or higher) as well.
The OpenSBI changes to embed SiFive Unleashed DTB can be found in sifive_unleashed_dtb_fix_v3 branch of: https://github.com/avpatel/opensbi.git
This series can be found in riscv_unleashed_clk_sync_v3 branch of: https://github.com/avpatel/u-boot.git
Changes since v2:
- Dropped PATCH6 which adds new compatible string to MACB driver because more changes are required in MACB driver for different ethernet speeds
If we drop PATCH6, we should also drop PATCH5, otherwise U-Boot 10/100Mbps is broken.
Regards, Bin