The DT bindings of SiFive clock driver in upstream Linux has
changes. As-per latest DT bindings, the clock driver takes two
parent clocks and compatible string has also changed.
This patch sync-up SiFive clock driver implementation as-per
upstream Linux so that we now use latest DT bindings.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
The location and license header of DT bindings header for SiFive
clock driver has changed in upstream Linux hence this patch.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Now that SiFive clock driver is merged in upstream Linux, we
sync-up WRPLL library used by SiFive clock driver with upstream
Linux sources.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
To match SiFive clock driver with latest Linux, we factor-out PLL
library as separate module under drivers/clk/analogbits.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Like clk_get_by_index, there is requirement for
clk_get_by_index_nodev. In this case to make common
code functionalities for dev and nodev, clk_get_by_index
is trying to get the index of clock by passing ofnode
instead of actual dev like current gpio uclass does.
In these scenarios with current order of include files
the fu540-prci driver is unable to find CONFIG_ENV_SIZE.
In file included from arch/riscv/include/asm/u-boot.h:23:0,
from include/dm/of.h:10,
from include/dm/ofnode.h:12,
from include/clk.h:11,
from include/clk-uclass.h:13,
from drivers/clk/sifive/fu540-prci.c:32:
include/environment.h:145:19: error: 'CONFIG_ENV_SIZE'
undeclared here (not in a function); did you mean 'CONFIG_CMD_XIMG'?
#define ENV_SIZE (CONFIG_ENV_SIZE - ENV_HEADER_SIZE)
So, fix consists of changing the order of include files
in fu540-prci.c to include first common.h file.
Cc: Anup Patel <Anup.Patel@wdc.com>
Cc: Rick Chen <rick@andestech.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Add driver code for the SiFive FU540 PRCI IP block. This IP block
handles reset and clock control for the SiFive FU540 device and
implements SoC-level clock tree controls and dividers.
Based on code written by Wesley Terpstra <wesley@sifive.com>
found in commit 999529edf517ed75b56659d456d221b2ee56bb60 of:
https://github.com/riscv/riscv-linux
Boot and PLL rate change were tested on a SiFive HiFive Unleashed
board.
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
