Commit graph

388 commits

Author SHA1 Message Date
Tom Rini
35b05146f6 Merge branch 'master' of git://git.denx.de/u-boot-sh
- Gen2/Gen3 fixes for warnings and sdhi
2019-02-28 18:57:17 -05:00
Anup Patel
b630d57d0a clk: Add fixed-factor clock driver
This patch adds fixed-factor clock driver which derives clock
rate by dividing (div) and multiplying (mult) fixed factors
to a parent clock.

Signed-off-by: Atish Patra <atish.patra@wdc.com>
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2019-02-27 09:12:33 +08:00
Anup Patel
c40b6df87f clk: Add SiFive FU540 PRCI clock driver
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>
2019-02-27 09:12:33 +08:00
Marek Vasut
18a37a5a8b clk: rmobile: Drop def_bool per SoC
Drop per SoC def_bool on each driver, since this is now implied by
SoC Kconfig option instead.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2019-02-25 16:07:41 +01:00
Patrick Delaunay
bbd108a082 clk: stm32mp1: correctly handle Clock Spreading Generator
To activate the csg option, the driver need to set the bit2
of PLLNCR register = SSCG_CTRL: Spread Spectrum Clock Generator
of PLLn enable.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-02-09 07:50:57 -05:00
Patrick Delaunay
8d6310aa0b clk: stm32mp1: add debug information
Add support of clk dump command and
display information during probe (under CONFIG_DISPLAY_CPUINFO).

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-02-09 07:50:57 -05:00
Patrick Delaunay
f3a23c2609 clk: stm32mp1: recalculate counter when switching freq
Because stgen is initialized with HSI clock, we need to
recalculate the counter when changing frequency.

Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-02-09 07:50:56 -05:00
Patrick Delaunay
63201281e5 clk: stm32mp1: correct access to RCC_OCENSETR/RCC_OCENCLRR
Remove unnecessary setbits on set/clear registers.
Avoid to deactivate HSI with HSE.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-02-09 07:50:56 -05:00
Patrick Delaunay
d661f61847 clk: stm32mp1: add IPCC clock
Add support for enable/disable of IPCC clock using AHB3 registers

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-02-09 07:50:56 -05:00
Patrick Delaunay
86617dd140 clk: stm32mp1: no more get ck_usbo_48m in device tree
Remove support of ck_usbo_48m clock node in device tree,
but force 48MHz frequency to prepare alignment
with kernel device tree.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-02-09 07:50:55 -05:00
Simon Glass
5328af1774 rockchip: clk: Add mention of four new clocks
These clocks are needed to get MMC running. We don't actually support
setting them yet.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-02-01 16:59:13 +01:00
Simon Glass
6831616063 clk: Improve debug message in clk_set_default_rates()
It is helpful to print the clock number as well as the index, so that this
can be looked up in the binding file. Update the debug() statement to do
this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-02-01 16:59:12 +01:00
Simon Glass
3dbfe5ae61 rockchip: rk3288: Add i2s pinctrl and clock support
Add support for setting pinctrl and clock for I2S on rk3288. This allows
the sound driver to operate. These settings were created by rkmux.py

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-02-01 16:59:10 +01:00
Andre Przywara
13b0867dc3 sunxi: clk: enable clk and reset for CCU devices
Some Allwinner clock devices have parent clocks and reset gates itself,
which need to be activated for them to work.

Add some code to just assert all resets and enable all clocks given.
This should enable the A80 MMC config clock, which requires both to be
activated. The full CCU devices typically don't require resets, and have
just fixed clocks as their parents. Since we treat both as optional and
enabling fixed clocks is a NOP, this works for all cases, without the need
to differentiate between those clock types.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Jagan Teki <jagan@openedev.com>
2019-01-30 18:21:35 +05:30
Andre Przywara
e0c7ce7e52 sunxi: clk: A80: add MMC clock support
The A80 handles resets and clock gates for the MMC devices differently,
outside of the CCU IP block. Consequently we have a separate clock
device with a separate binding for that.

Implement that with the respective clock gates and resets to allow the
A80 taking part in the DM_MMC game.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
[jagan: fix a80 mmc clock config compatible]
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2019-01-29 23:33:08 +05:30
Andre Przywara
bb3e5aa289 sunxi: clk: add MMC gates/resets
Add the MMC clock gates and reset bits for all the Allwinner SoCs.
This allows them to be used by the MMC driver.

We don't advertise the mod clock yet, as this is still handled by the
MMC driver.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
[jagan: add V3S, A80 gates/resets]
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2019-01-29 23:30:11 +05:30
Jagan Teki
6901aab8e3 clk: sunxi: Add Allwinner A80 CLK driver
Add initial clock driver for Allwinner A80.

- Implement UART bus clocks via ccu_clk_gate table for
  A80, so it can accessed in common clk enable and disable
  functions from clk_sunxi.c
- Implement UART bus resets via ccu_reset table for A80,
  so it can accessed in common reset deassert and assert
  functions from reset-sunxi.c

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2019-01-18 22:19:09 +05:30
Jagan Teki
337fcdc06b clk: sunxi: Add Allwinner H6 CLK driver
Add initial clock driver for Allwinner H6.

- Implement UART bus clocks via ccu_clk_gate table for
  H6, so it can accessed in common clk enable and disable
  functions from clk_sunxi.c
- Implement UART bus resets via ccu_reset table for H6,
  so it can accessed in common reset deassert and assert
  functions from reset-sunxi.c

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
2019-01-18 22:19:09 +05:30
Jagan Teki
8606f960d4 clk: sunxi: Implement UART resets
Implement UART resets for all relevant Allwinner SoC
clock drivers via ccu reset table.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
2019-01-18 22:19:09 +05:30
Jagan Teki
4acc711930 clk: sunxi: Implement UART clocks
Implement UART clocks for all Allwinner SoC
clock drivers via ccu clock gate table.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
2019-01-18 22:19:09 +05:30
Jagan Teki
6239a6d092 clk: sunxi: Add Allwinner V3S CLK driver
Add initial clock driver for Allwinner V3S.

- Implement USB bus and USB clocks via ccu_clk_gate table
  for V3S, so it can accessed in common clk enable and disable
  functions from clk_sunxi.c
- Implement USB bus and USB resets via ccu_reset table
  for V3S, so it can accessed in common reset deassert
  and assert functions from reset-sunxi.c

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-01-18 22:19:09 +05:30
Jagan Teki
78eb2a41f3 clk: sunxi: Add Allwinner R40 CLK driver
Add initial clock driver for Allwinner R40.

- Implement USB bus and USB clocks via ccu_clk_gate
  for R40, so it can accessed in common clk enable
  and disable functions from clk_sunxi.c
- Implement USB bus and USB resets via ccu_reset table
  for R40, so it can accessed in common reset deassert
  and assert functions from reset-sunxi.c

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-01-18 22:19:09 +05:30
Jagan Teki
03d87f5909 clk: sunxi: Add Allwinner A83T CLK driver
Add initial clock driver for Allwinner A83T.

- Implement USB bus and USB clocks via ccu_clk_gate table
  for A83T, so it can accessed in common clk enable and
  disable functions from clk_sunxi.c
- Implement USB bus and USB resets via ccu_reset table
  for A83T, so it can accessed in common reset deassert
  and assert functions from reset-sunxi.c

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-01-18 22:19:09 +05:30
Jagan Teki
3ab029368a clk: sunxi: Add Allwinner A23/A33 CLK driver
Add initial clock driver for Allwinner A23/A33.

- Implement USB bus and USB clocks via ccu_clk_gate table
  for A23/A33, so it can accessed in common clk enable and
  disable functions from clk_sunxi.c
- Implement USB bus and USB resets via ccu_reset table
  for A23/A33, so it can accessed in common reset deassert
  and assert functions from reset-sunxi.c

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-01-18 22:19:09 +05:30
Jagan Teki
4927e2e8d3 clk: sunxi: Add Allwinner A31 CLK driver
Add initial clock driver for Allwinner A31.

- Implement USB ahb1 and USB clocks via ccu_clk_gate table
  for A31, so it can accessed in common clk enable and disable
  functions from clk_sunxi.c
- Implement USB ahb1 and USB resets via ccu_reset table
  for A31, so it can accessed in common reset deassert
  and assert functions from reset-sunxi.c

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-01-18 22:19:09 +05:30
Jagan Teki
c8e743c1e8 clk: sunxi: Add Allwinner A10s/A13 CLK driver
Add initial clock driver for Allwinner A10s/A13.

- Implement USB ahb and USB clocks via ccu_clk_gate table
  for A10s/A13, so it can accessed in common clk enable and
  disable functions from clk_sunxi.c
- Implement USB resets via ccu_reset table for A10s/A13,
  so it can accessed in common reset deassert and assert
  functions from reset-sunxi.c

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-01-18 22:19:08 +05:30
Jagan Teki
6590bd8c47 clk: sunxi: Add Allwinner A10/A20 CLK driver
Add initial clock driver for Allwinner A10/A20.

- Implement USB ahb and USB clocks via ccu_clk_gate table
  for A10/A20, so it can accessed in common clk enable and
  disable functions from clk_sunxi.c
- Implement USB resets via ccu_reset table for A10/A20,
  so it can accessed in common reset deassert and assert
  functions from reset-sunxi.c

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-01-18 22:19:08 +05:30
Jagan Teki
e945816efb clk: sunxi: Add Allwinner H3/H5 CLK driver
Add initial clock driver for Allwinner H3/H5.

- Implement USB bus and USB clocks via ccu_clk_gate table for
  H3/H5, so it can accessed in common clk enable and disable
  functions from clk_sunxi.c
- Implement USB bus and USB resets via ccu_reset table for
  H3/H5, so it can accessed in common reset deassert and assert
  functions from reset-sunxi.c

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-01-18 22:19:08 +05:30
Jagan Teki
99ba430870 reset: Add Allwinner RESET driver
Add common reset driver for all Allwinner SoC's.

Since CLK and RESET share common DT compatible, it is CLK driver
job is to bind the reset driver. So add CLK bind call on respective
SoC driver by passing ccu map descriptor so-that reset deassert,
deassert operations held based on ccu reset table defined from
CLK driver.

Select DM_RESET via CLK_SUNXI, this make hidden section of RESET
since CLK and RESET share common DT compatible and code.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-01-18 22:19:08 +05:30
Jagan Teki
0d47bc7056 clk: Add Allwinner A64 CLK driver
Add initial clock driver for Allwinner A64.

Implement USB clock enable and disable functions for
OHCI, EHCI, OTG and USBPHY gate and clock registers
via ccu clk gate table.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2019-01-18 22:19:08 +05:30
Weijie Gao
2dca3cc2a9 clk: MediaTek: bind ethsys reset controller
The ethsys contains not only the clock gating controller, but also the
reset controller for the whole ethernet subsystem and its components.

This patch adds binding of the reset controller so that the ethernet node
can have references on it.

Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
2019-01-14 17:43:18 -05:00
Peng Fan
224f745247 clk: imx8: fix build warning
When build clk driver in spl, met the warning:
"
drivers/clk/imx/clk-imx8.c:21:25: warning: ‘imx8_clk_names’ defined but not used [-Wunused-variable]
 static struct imx8_clks imx8_clk_names[] = {
                         ^~~~~~~~~~~~~~
"

Fix with wrapping the array with CONFIG_CMD_CLK.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
2019-01-09 17:03:29 +01:00
Masahiro Yamada
94bf34b172 clk: uniphier: add NAND 200MHz clock
The Denali NAND controller IP needs three clocks:

 - clk: controller core clock

 - clk_x: bus interface clock

 - ecc_clk: clock at which ECC circuitry is run

Currently, only the first one (50MHz) is provided.  The rest of the
two clock ports must be connected to the 200MHz clock line.  Add this.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-12-29 11:38:38 +09:00
Benjamin Gaignard
283bcd9a34 clk: stm32: add hardware spinlock clock
Add hardware spinlock in the list of the clocks.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
2018-12-06 23:26:32 -05:00
Philipp Tomsich
291da96b8e clk: Allow clock defaults to be set during re-reloc state for SPL only
In commit e5e06b65ad ("clk: Allow clock defaults to be set also
during re-reloc state") the earlier guard against setting clock
defaults in pre-reloc state was removed.  While it is easy to filter
'assigned-clocks' properties for SPL using CONFIG_OF_SPL_REMOVE_PROPS,
no such mechanism exists for the pre-reloc stage of the full U-Boot.

With the default defconfig for the RK3399-Q7 (which filter the
'assigned-clocks' property for the DTS used by SPL anyway), this
caused a pause during startup of the full U-Boot stage that lasted for
almost 10s (due to the CPU not having been clocked up yet).

This reintroduces the guard from commit f4fcba5c5b ("clk: Allow
clock defaults to be set also during re-reloc state") and extends it
to only apply outside of a TPL/SPL build: i.e. clk_set_defaults will
now run in pre-reloc state for SPL, but only after reloc for the full
U-Boot.

References: commit f4fcba5c5b ("clk: implement clk_set_defaults()")
References: commit e5e06b65ad ("clk: Allow clock defaults to be set
also during re-reloc state")
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-12-06 23:26:31 -05:00
Tom Rini
ec0d0d8742 Merge branch 'master' of git://git.denx.de/u-boot-sh
- MMC fixes for R-Car Gen3
2018-12-03 17:51:45 -05:00
Loic Devulder
8973d81658 ARM: meson: Add regmap support for clock driver
This patch modifies the meson clock driver to use syscon/regmap like
the Linux kernel does, as it is needed if we want to share the same
DTS files.

DTS files are synchronized from Linux 4.19.

Signed-off-by: Loic Devulder <ldevulder@suse.de>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
2018-12-03 13:34:21 +01:00
Marek Vasut
f58d6771a2 clk: renesas: Allow reconfiguring SDHI clock on Gen3
The SDHI clock must be configured differently for HS200/HS400/SDR104
modes. Add support for reconfiguring the SDHI clock settings into the
clock driver.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2018-12-03 12:51:16 +01:00
Christoph Muellner
af765a49ba rockchip: rk3399: Initialize CPU B clock.
This patch sets the PLL of CPU cluster B (BPLL) to 600 MHz.
This decreases the boot time of Linux 4.19 by about 8%.

The 600 MHz are inspired by the 600 MHz used for LPLL initialization
(came in with commit 9f636a249c).

Tested on RK3399-Q7 on Haikou base board.

Signed-off-by: Christoph Muellner <christoph.muellner@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-11-30 21:56:45 +01:00
Otavio Salvador
5d2cb15c77 ARM: rockchip: rv1108: Sync clock with vendor tree
Make adjustments to the rv1108 clock driver in order to align it
with the internal Rockchip version.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-11-30 21:56:44 +01:00
Tom Rini
93e72ac472 Cleanup and update towards support for Amlogic Meson AXG SoCs :
- mmc: meson-gx: Add AXG compatible
 - net: designware: add meson meson compatibles
 - Amlogic Meson cleanup for AXG SoC support
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJb/AwoAAoJEHfc29rIyEnR2dMQANCsuWQzKASCLgUzeL/KWhQ8
 gj1YEVGbS0meQ35hNo0hL6qfN4VkjazawyWnb40HVVADBjil42QuxN9rncovg69Q
 ZvPEo4XYNCkDzOU3UmoR2rjxxGICVFY6GCOuNbqzvB2x4gWJmoUeByqewKW2g2Zp
 jyjbzYvJ+r8wLtUFbdqaGvsHHC8hiIkjyeaqdXUc6NHJrGYasRuOsCO92bEioYC1
 XPh76c2ABAnbzJy7GArdlBbDOQrQxoEskVeP47ZjiPywXxGCkgHaRSXaUKzpz30G
 8MrA5AciL6pmurmsM0APlgvJwL7qaX1P6NxiJ+12prWWfAk1ZC2/MEKVZY+gO/CF
 vUAyzhus1oJ5JjccCngy/1ftkIReueSbUrzGYFvqhihs9g4QyRpi7F5MDKX0MvP2
 uk+XXStXs+rOZ2YdMFlV8l6G12TijcViZVmVHdh8qdl4t8WFlv7gENVUM+0mhyu2
 x5OsoYz5w2h9hCh/CB3oIZfyJBe5VZVHZ2fWIRZJ72J7toUGMewlKYQq2LOv7A9q
 w6vRGnza3fSPUZgYenznohaeo9vXG/WX7cNSPQiNBoiGeC+Y2ko5NHe2MIEnUD4c
 amp21KA6rWnWeHHvDbwo5DJ+NhCd6uMgkiZDLCuiTtns1/a03l0V6kgOvQLIBjhK
 KxBWBn6+rDPq1wJxhxab
 =Oo1g
 -----END PGP SIGNATURE-----

Merge tag 'u-boot-amlogic-20181126' of git://git.denx.de/u-boot-amlogic

Cleanup and update towards support for Amlogic Meson AXG SoCs :
- mmc: meson-gx: Add AXG compatible
- net: designware: add meson meson compatibles
- Amlogic Meson cleanup for AXG SoC support
2018-11-29 15:16:58 -05:00
Ryder Lee
c746651550 clk: MediaTek: add clock driver for MT7623 SoC.
This patch adds a driver for MT7623 clock blocks.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Tested-by: Matthias Brugger <matthias.bgg@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-11-28 23:04:51 -05:00
Ryder Lee
0bd7dc74d2 clk: MediaTek: add clock driver for MT7629 SoC.
This patch adds clock modules for MediaTek SoCs:
- Shared part: a common driver which contains the general operations
for plls, muxes, dividers and gates so that we can reuse it in future.

- Specific SoC part: the group of structures used to hold the hardware
configuration for each SoC.

We take MT7629 as an example to demonstrate how to implement driver if
any other MediaTek chips would like to use it.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-11-28 23:04:51 -05:00
Neil Armstrong
f6eb68b978 clk: Add clock driver for AXG
This patch adds a minimal clock driver for the Amlogic AXG SoC to handle
the basic gates and PLLs.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2018-11-26 14:40:52 +01:00
Jerome Brunet
33e3378091 ARM: meson: rework soc arch file to prepare for new SoC
We are about to add support for the Amlogic AXG SoC. While very close to
the Gx SoC family, we will need to handle a few thing which are different
in this SoC. Rework the meson arch directory to prepare for this.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2018-11-26 14:40:52 +01:00
Jerome Brunet
572aeb5338 clk: meson: silence debug print
This debug print was not designed to be active in non-debug mode.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2018-11-26 14:40:52 +01:00
Neil Armstrong
19987c3908 clk: meson: add static to meson_gates table
The meson_gates table should be set static in the clk_meson driver.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2018-11-26 14:40:52 +01:00
Simon Glass
8729b1ae2c misc: Update read() and write() methods to return bytes xfered
At present these functions return 0 on success. For some devices we want
to know how many bytes were transferred. It seems useful to adjust the API
to be more like the POSIX read() and write() functions.

Update these two methods, a test and all users.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
2018-11-20 19:14:22 -07:00
Jerome Brunet
2fa77bd125 clk: meson: fix clk81 divider calculation
clk81 divider is 0 based (meaning that 0 value in the register means
divide by 1). Fix clk81 rate calculation for this.

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2018-11-20 12:35:35 -05:00
Andreas Dannenberg
e5e06b65ad clk: Allow clock defaults to be set also during re-reloc state
The earlier commit f4fcba5c5b ("clk: implement clk_set_defaults()")
which introduced the functionality for setting clock defaults such as
rates and parents will skip the processing when executing in a re-reloc
state. This for example can prevent the assigning of clock parents
when running in SPL code. Go ahead and remove this limitation.

Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2018-11-16 13:34:36 -05:00