The current mpc83xx_clk driver is broken for any board for which
mpc83xx_has_pci() is true, i.e. anything not MPC8308:
When is_clk_valid() reports that MPC83XX_CLK_PCI is valid,
init_all_clks() proceeds to call init_single_clk(), but that doesn't
know about either MPC83XX_CLK_PCI or has any handling of the
TYPE_SCCR_ONOFF mode correctly returned by retrieve_mode(). Hence
init_single_clk() ends up returning -EINVAL, and the whole board hangs
in serial_init().
The quickest fix is to simply pretend that clock is invalid for
all, since nobody can have been relying on it. Adding proper support
seems to be a bit more involved than just handling TYPE_SCCR_ONOFF:
- The power-on-reset value of SCCR[PCICM] is 0, so
mpc83xx_clk_enable() would probably need to be tought to enable the
clock.
- The frequency of PCI_SYNC_OUT is either SYS_CLK_IN or SYS_CLK_IN/2
depending on the CFG_CLKIN_DIV configuration input, but that can't
be read from software, so to properly fill out
->speed[MPC83XX_CLK_PCI] I think one would need guidance from
Kconfig or dtb.
Partially fixes: 07d538d281 clk: Add MPC83xx clock driver
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Reviewed-by: Mario Six <mario.six@gdsys.cc>
At present the clock driver reads its ofdata in the probe() method. This
is not correct although it is often harmless.
However in this case it causes a problem, something like this:
- ast_get_scu() is called (from somewhere) to get the SCI address
- this probes the clock
- first sets up ofdata (which does nothing at present)
- DM marks clock device as active
- DM calls pinctrl
- pinctrl probes and calls ast_get_scu() in ast2500_pinctrl_probe()
- ast_get_scu() probes the clock, but sees it already marked as
probed
- ast_get_scu() accesses the clock's private data, with scu as NULL
- DM calls clock probe function ast2500_clk_probe() which reads scu
By putting the read of scu into the correct method, scu is read as part of
ofdata setup, and everything is OK.
Note: This problem did not matter until now since DM always probed all
parents before reading a child's ofdata. The fact that pinctrl is a child
of clock seems to trigger this strange bug.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Add an entry for allowing clock enablement for the random number
generator peripheral, RNG1.
Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Acked-by: Patrick Delaunay <patrick.delaunay@st.com>
Add clock manager driver for Agilex. Provides clock initialization
and get_rate functions.
agilex-clock.h is from Linux commit ID cd2e1ad12247.
Signed-off-by: Chee Hong Ang <chee.hong.ang@intel.com>
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
-----------------
- imx8qxp_mek: increase buffer sizes and args number
- Fixes for imx7ulp
- imx8mm: Fix the first root clock in imx8mm_ahb_sels[]
- colibri_imx7: reserve DDR memory for Cortex-M4
- vining2000: fixes and convert to ethernet DM
- imx8m: fix rom version check to unbreak some B0 chips
- tbs2910: Disable VxWorks image booting support
-----BEGIN PGP SIGNATURE-----
iQHDBAABCgAtFiEEiZClFGvhzbUNsmAvKMTY0yrV63cFAl3uLqsPHHNiYWJpY0Bk
ZW54LmRlAAoJECjE2NMq1et3YEEL/jAKMnREGNHCjvwvxkVVZ7sWHeRtqh+OXb8V
VnZB0glptth1NDxWyHFZkcsVqjpRlUsm3/lA91xaFXcUB8EWnJMKVReHkB7v0bZW
zHziN0rNPoTBVocRlpgPXt3zeSOR3Qg+rFesg4zmlXNIVPyvBanpDCxXDK60gdIi
JDrAdIarP0UMK0roIFLIyvnJ+J/ib1ky1aJI8cdktXb+nSyVrMw5VDdmSBtTCp10
6o/fJGtWfzXp59a8y9XnnVxNsU2c0URcsswub4fvWhhwJ86xiWGSEfm5Sybql6kS
6PYjB7jGmdWJjYug7rFthl1Hnn1FULIH9qrxPePtD2ooUUjHPlDmElQqWkHoVlib
yUAlWG87ZdjhmEMR1iSFlkcBpOD7SlmcvfYZdeedCdtzTwW0kj6lcX9fUKHE+17e
3SJQtPxpMrVfnUDRn0ciAbwg8+1Tow6sv39j6iYi7jAITny9q16ErdRGup0wB19Y
tZkmRdnhtjCalrfDoEaRGXZJDE15XQ==
=L2zo
-----END PGP SIGNATURE-----
Merge tag 'u-boot-imx-20191209' of https://gitlab.denx.de/u-boot/custodians/u-boot-imx
Fixes for 2020.01
-----------------
- imx8qxp_mek: increase buffer sizes and args number
- Fixes for imx7ulp
- imx8mm: Fix the first root clock in imx8mm_ahb_sels[]
- colibri_imx7: reserve DDR memory for Cortex-M4
- vining2000: fixes and convert to ethernet DM
- imx8m: fix rom version check to unbreak some B0 chips
- tbs2910: Disable VxWorks image booting support
The 24MHz oscillator clock is referenced by "clock-osc-24m" and not
"osc_24m".
Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
This function belongs in time.h so move it over and add a comment.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
At present this function sits in its own file but it does not really
justify it. There are similar string functions in vsprintf.h, so move it
there. Also add the missing function comment.
Use the vsprintf.h include file explicitly where needed.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Add clk controller driver for RK3308 SOC.
This patch depends on Elaine's pll patch[0].
[0]http://patchwork.ozlabs.org/patch/1183718/
Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Common PLL setup function, compatible with different SOC.
Mainly for the subsequent new SOC use.
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
CONFIG_IS_ENABLED() needs the config name like used in Kconfig, so
without the leading CONFIG_. The clock drivers all wrongly check for
CONFIG_RESET_ROCKCHIP, fix that
Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
rockchip_reset_bind() already does the needed init for the reset
registers, only referenced the wrong cru structure.
So we can get rid of the open-coded reset init and just fix
the correct cru reference.
Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
The px30 contains 2 separate clock controllers, pmucru and cru.
Add drivers for them.
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
-------------------
i.MX8MN SoC support
ROM API image download support
i.MX8MM enet enabling
-----BEGIN PGP SIGNATURE-----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=sgCz
-----END PGP SIGNATURE-----
Merge tag 'u-boot-imx-20191105' of https://gitlab.denx.de/u-boot/custodians/u-boot-imx
u-boot-imx-20191105
-------------------
i.MX8MN SoC support
ROM API image download support
i.MX8MM enet enabling
- Add support for rockchip pmic rk805,rk809, rk816, rk817
- Add rk3399 board Leez support
- Fix bug in rk3328 ram driver
- Adapt SPL to support ATF bl31 with entry at 0x40000
- Fix the u8 type comparision with '-1'.
- Fix checkpatch warning for multi blank line and review signature.
Add a call to rk3328_configure_cpu() during initialization to set the
CPU-clock frequency.
Signed-off-by: Simon South <simon@simonsouth.net>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Add set_parent callback, then assigned-clock-parents in dts could
be work.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Tested-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Add enet ref/timer/PHY_REF/root clk which are required to make enet
function well.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Tested-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Add i.MX8MM ccf driver support.
Modifed from Linux Kernel 5.3.0-rc1, drop some entries
that not used in U-Boot and adapt to U-Boot CCF style.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Lukasz Majewski <lukma@denx.de>
- Add I2C clocks for i.MX6Q CCF driver
- Fix check in clk_set_default_parents()
- Managed API to get clock from device tree
- Fixes for core clock code (including sandbox regression tests)
- bmips: various small fixes
- mtmips: add new drivers for clock, reset-controller and pinctrl
- mtmips: add support for high speed UART
- mtmips: update/enhance drivers for SPI and ethernet
- mtmips: add support for MMC
-----BEGIN PGP SIGNATURE-----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=6G/J
-----END PGP SIGNATURE-----
Merge tag 'mips-pull-2019-10-25' of git://git.denx.de/u-boot-mips
- bmips: add BCRM NAND support for BCM6368, BCM6328, BCM6362 and BCM63268 SoCs
- bmips: various small fixes
- mtmips: add new drivers for clock, reset-controller and pinctrl
- mtmips: add support for high speed UART
- mtmips: update/enhance drivers for SPI and ethernet
- mtmips: add support for MMC
This patch adds a clock driver for MediaTek MT7628/7688 SoC.
It provides clock gate control as well as getting clock frequency for
CPU/SYS/XTAL and some peripherals.
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
Make sure that the clock self-assignment works by having a clock of
clk-sbox be configured automatically when clk-sbox is probed.
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
This fixes the case where assigned-clocks is used to define a clock
defaults inside this same clock's node. This is used sometimes to setup a
default parents and/or rate for a clock.
example:
muxed_clock: muxed_clock {
clocks = <&clk_provider 0>, <&clk_provider 1>;
#clock-cells = <0>;
assigned-clocks = <&muxed_clock>;
assigned-clock-parents = <&clk_provider 1>;
};
It doesn't work in u-boot because the assigned-clocks are setup *before*
the clock is probed. (clk_set_parent() will likely crash or fail if called
before the device probe function)
Making it work by handling "assigned-clocks" in 2 steps: first before the
clk device is probed, and then after the clk device is probed.
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Add a few more clocks the clk_sandbox clock provider and get them using
the managed API.
Make sure they are released when the device is removed.
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Add devm_clk_get(), devm_clk_get_optional() to get clocks from the
device-tree. The clocks is automatically released and the data structure
freed when the device is unbound.
Also add devm_clk_put() to release the clock and free the data structure
manually.
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
This change adds support for I2C clock modeled in CCF. This code intention
is to only enable those clocks in the I2C driver with default settings.
For that reason the "busy" versions of clocks reuse the generic approach
and would need to be updated when one wants to adjust the I2C clock
frequency in U-Boot.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
According to the documentation in clk.h, clk_set_parent() return the new
rate of the clock or a negative error code.
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
The SM1 clock controller is almost identical to the G12A and
so far the differences don't matter.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Add necessary clock support to set up clock for the VPU and
HDMI support.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Anatolij Gustschin <agust@denx.de>
Add support for CDCE913/925/937/949 family of devices. These are modular
PLL-based low cost, high performance, programmable clock synthesizers,
multipliers and dividers. They generate up to 9 output clocks from a
single input frequency. The initial version of the driver does not
support programming of the PLLs, and thus they run in the bypass mode
only. The code is loosely based on the linux kernel cdce9xx driver.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
This patch adds clock driver support for Versal platform. The clock driver
queries and performs clock operations using PLM firmware by communicating
with it using SMC calls.
Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Add simple ZynqMP firmware drive to populate child nodes under
zynqmp_firmware DT node.
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
The Special Function Registers (SFR) are present in sam9x5 and
sam9x60 too, rename sama5_sfr to at91_sfr.h.
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
There is no real driver for clk enable/disable now, and we actually
don't need it now, remove it so that not waste CPU cycles and code size.
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
There is no real driver for clk enable/disable now, and we actually
don't need it now, remove it so that not waste CPU cycles and code size.
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
There is no real driver for clk enable/disable now, and we actually
don't need it now, remove it so that not waste CPU cycles and code size.
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
There is no real driver for clk enable/disable now, and we actually
don't need it now, remove it so that not waste CPU cycles and code size.
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
The G12B clock controller is almost identical to the G12A and
so far the differences don't matter. Adding the G12B compatible
makes USB work on the Odroid-N2.
Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Use existing gd structure to store frequency information
which can be used in drivers or arch without new request.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Several options are presenting themselves on a various boards
where the options are clearly not used. (ie, SPL/TPL options
when SPL or TPL are not defined)
This patch is not attempting to be a complete list of items, but
more like low hanging fruit. In some instances, I wasn't sure
of DM was required, so I simply made them SPL or TPL.
This patch attempts to reduce some of the menuconfig noise
by defining dependencies so they don't appear when not used.
Signed-off-by: Adam Ford <aford173@gmail.com>
- remove rk3288 fennec board
- remove SPL raw image support for Rockchip SoCs
- add common misc_init_r() for ethaddr from cpuid
- enable USB HOST support for rk3328
- unify code for finding a valid gpt in part driver
Since we added clk enable_count and prograte clk child enabling
operation to clk parent, so add a new function sandbox_clk_enable_count
to get enable_count for test usage.
And add test code to get the enable_count after we enable/disable
the device clk.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
On i.MX8MM, thinking such as clk path
OSC->PLL->PLL GATE->CCM ROOT->CCGR GATE->Device
Only enabling CCGR GATE is not enough, we also need to enable PLL GATE
to make sure the clk path work. So when enabling CCGR GATE,
we could prograte to enabling PLL GATE to make life easier.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
As what Linux Kernel 5.3.0 provides when enable/disable clk,
there is an enable_count in clk_core_disable/enable. Introduce
enable_count to track the clk enable/disable count when
clk_enable/disable for CCF. And Initialize enable_count to 0 when
register the clk.
And clk tree dump with enable_count will be supported, it will
be easy for us to check the clk status with enable_count
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Add support for clk_is_match() which is required to
know if two clock pointers point to the same exact
physical clock.
Also add a unit test for the new API.
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
This adds high speed interface subsystem - hifsys (i.e. PCIe and USB)
for MT7623 SoC and enables its reset controller.
The control block is shared with ethsys and accordingly rename the
related defines.
Tested-by: Frank Wunderlich <frank-w@public-files.de>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
First thing we check in meson_clk_set_rate_by_id() is current_rate == rate.
There is not need to check it again.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
When the device not binded with a node, we need ignore
the parents and rate settings.
Cc: Simon Glass <sjg@chromium.org>
Cc: Jagan Teki <jagan@amarulasolutions.com>
Cc: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Andreas Dannenberg <dannenberg@ti.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
When support Clock Common Framework, U-Boot use dev for
clk tree information, there is no clk->parent. When
support composite clk, it contains mux/gate/divider,
but the mux/gate/divider is not binded with device.
So we could not use dev_get_uclass_priv to get the correct
clk_mux/gate/divider. So add clk_dev_binded to let
choose the correct method.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
- Clean up and migrate to use common rockchip spl board file
- Clean up and migrate to use common rockchip board file
- Increase rk3288 CONFIG_SYS_BOOTM_LEN to 16MB
Init CPU frquency in clock driver instead of in SPL board file,
this will help for use common board file later.
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Right now when using clk_of_xlate_default(), clk->data
remains un-initialized because clk_get_bulk() does not
initialize memory on allocation of clock structure.
This can cause problems when data is used to match if
two clocks pointers are exactly the same underlying
clocks, for example.
Fix it by initializing clk->data to 0.
Suggested-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Add RTCAPB and RTC clock support.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
- rk3399 lpddr4 support
- rk3399-rock960 board support improvement
- Eliminate pyelftools dependency by make_fit_atf.py
- clean up rockchip dts to use -u-boot.dtsi
- use ARM arch/generic timer instead of rk_timer
- clean up Kconfig options for board support
Add support for setting 400MHz ddr clock.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: YouMin Chen <cym@rock-chips.com>
Reviewed-by: Kever Yang <Kever.yang@rock-chips.com>
Add support for setting 50MHz ddr clock.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: YouMin Chen <cym@rock-chips.com>
Reviewed-by: Kever Yang <Kever.yang@rock-chips.com>
This patch provides code to implement the CCF clock tree in sandbox. It
uses all the introduced primitives; some generic ones are reused, some
sandbox specific were developed.
In that way (after introducing the real CCF tree in sandbox) the recently
added to clk-uclass.c: clk_get_by_id() and clk_get_parent_rate() are tested
in their natural work environment.
Usage (sandbox_defconfig and sandbox_flattree_defconfig):
./u-boot --fdt arch/sandbox/dts/test.dtb --command "ut dm clk_ccf"
Signed-off-by: Lukasz Majewski <lukma@denx.de>
The generic mux clock code for CCF requires reading the clock multiplexer
value from HW registers. As sandbox by design has readl() as no-op it was
necessary to provide this value in the other way.
The new field in the mux structure (accessible only when sandbox is run)
has been introduced for this purpose.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
The generic divider clock code for CCF requires reading the divider value
from HW registers. As sandbox by design has readl() as no-op it was
necessary to provide this value in the other way.
The new field in the divider structure (accessible only when sandbox is
run) has been introduced for this purpose.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
If the CLK_GET_RATE_NOCACHE flag is set - the clk_get_parent_rate()
provides recalculated clock value without considering the cache setting.
This may be necessary for some clocks tightly coupled with power domains
(i.e. imx8), and prevents from reading invalid cached values.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
This patch brings the files from Linux kernel (linux-stable/linux-5.1.y
SHA1: 5752b50477da)to provide clocks support as it is used on the Linux
kernel with Common Clock Framework [CCF] setup.
The directory structure has been preserved. The ported code only supports
reading information from PLL, MUX, Divider, etc and enabling/disabling
the clocks USDHCx/ECSPIx depending on used bus. Moreover, it is agnostic
to the alias numbering as the information about the clock is read from the
device tree.
One needs to pay attention to the comments indicating necessary for U-Boot's
driver model changes.
If needed, the code can be extended to support the "set" part of the clock
management.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
This commit adds the clk_get_by_id() function, which is responsible
for getting the udevice with matching clk->id. Such approach allows
re-usage of inherit DM list relationship for the same class (UCLASS_CLK).
As a result - we don't need any other external list - it is just enough
to look for UCLASS_CLK related udevices.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
This commit adds the clk_get_parent_rate() function, which is responsible
for getting the rate of parent clock.
Unfortunately, u-boot's DM support for getting parent is different
(the parent relationship is in udevice) than the one in Common Clock
Framework [CCF] in Linux.
To alleviate this problem - the clk_get_parent_rate() function has been
introduced to clk-uclass.c.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
This commit adds the clk_get_parent() function, which is responsible
for getting the parent's struct clock pointer.
U-Boot's DM support for getting parent is different (the parent
relationship is in udevice) than the one in Common Clock Framework [CCF]
in Linux. To obtain the pointer to struct clk of parent the
pdev->uclass_priv field is read via dev_get_clk_ptr() wrapper.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Up till now the fixed rate clock ('osc') has been added to UCLASS_CLK
without declaring struct clk. As a result it was only accessible by
iterating the udevice's uclass list.
This is a problem for clock code, which operates on pointers to struct
clk (like clk_get_rate()), not udevices.
After this change struct clk is accessible from udevice and udevice from
struct clk.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
This check requires the struct clk passed to .get_rate() to be always
cleared out as any clock with valid ID causes -EINVAL return value.
The return code of fixed clocks shall always be returned.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
The GEMGXL clock driver is now directly part of Cadence MACB
ethernet driver in upstream Linux kernel. There is no separate
GEMGXL clock driver in upstream Linux kernel hence we drop
GEMGXL clock driver from U-Boot as well.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
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>
