Commit graph

1161 commits

Author SHA1 Message Date
Hai Pham
c206dfd27e clk: renesas: Add dummy SDnH clock
Currently, SDnH is handled together with SDn. This caused lots of
problems, so we want SDnH as a separate clock. Introduce a dummy SDnH
type here which creates a fixed-factor clock with factor 1. That allows
us to convert the per-SoC CPG drivers while keeping the old behaviour
for now. A later patch then will add the proper functionality.

Based on Linux series by Wolfram Sang:
commit a31cf51bf6b4b ("clk: renesas: rcar-gen3: Add dummy SDnH clock"),
commit 1abd04480866c ("clk: renesas: rcar-gen3: Add SDnH clock"),
commit 63494b6f98f26 ("clk: renesas: r8a779a0: Add SDnH clock to V3U")

Signed-off-by: Hai Pham <hai.pham.ud@renesas.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> # Switch to gen3_clk_get_rate64
2023-02-02 01:49:20 +01:00
Marek Vasut
71d2a5e5ef ARM: dts: rmobile: Synchronize DTs with Linux 6.1.7
Synchronize R-Car device trees with Linux 6.1.7,
commit 21e996306a6afaae88295858de0ffb8955173a15 .

The following script has been used for the synchronization:

$ for i in $(cd arch/arm/dts/ ; ls -1 r8a* | grep -v 'u-boot.dts' ; sed -n '/#include/ s@.*"\(.*\)"@\1@p' $(ls -1 r8a* | grep -v 'u-boot.dts')) ; do
	if [ -e /linux-2.6/arch/arm64/boot/dts/renesas/$i ] ; then
		cp /linux-2.6/arch/arm64/boot/dts/renesas/$i arch/arm/dts/ ;
	elif [ -e /linux-2.6/arch/arm/boot/dts/$i ] ; then
		cp /linux-2.6/arch/arm/boot/dts/$i arch/arm/dts/
	else
		echo "NOT FOUND: $i"
	fi
done
$ git add $( ( cd arch/arm/dts/ ; ls -1 r8a* | grep -v 'u-boot.dts' ; sed -n '/#include/ s@.*"\(.*\)"@\1@p' $(ls -1 r8a* | grep -v 'u-boot.dts')) | tr " " "\n" | sed 's@^@arch/arm/dts/@g' )

Move the include/dt-bindings/{clk,clock}/versaclock.h header used by
the renesas boards to match Linux 6.1.y as well.

Keep arch/arm/dts/r8a774c0-u-boot.dtsi sdhi3 node as it is now used
by the arch/arm/dts/r8a774c0-cat874.dts board.

Pick s@spi-flash@flash@ change in arch/arm/dts/r8a779a0-falcon-u-boot.dts
from "ARM: dts: Synchronize R-Car V3U DTs with Linux 5.18.3" .

Adjust R8A77990 Ebisu CONFIG_SYS_MMC_ENV_DEV from 2 to 0 to reflect
the card enumeration in ebisu.dtsi /aliases DT node .

Adjust R8A7795 and R8A7796 ULCB CONFIG_SYS_MMC_ENV_DEV from 1 to 0 to
reflect the card enumeration in ulcb.dtsi /aliases DT node .

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Signed-off-by: Tam Nguyen <tam.nguyen.xa@renesas.com> # r8a779a0-falcon-u-boot.dts
Signed-off-by: Hai Pham <hai.pham.ud@renesas.com> # r8a779a0-falcon-u-boot.dts
2023-02-02 01:49:19 +01:00
Tom Rini
9ddbd70ff9 Xilinx chnages for v2023.04-rc1
makefile:
 - Add multi_dtb_fit dependency
 
 clk:
 - Handle error cases
 
 microblaze:
 - Disable falcon mode and cleanup code around
 
 xilinx:
 - Enable regular expression matching in board_fit_config_name_match()
 - Fix FRU handling for 0xC1 format
 - Fix Xilinx legacy format eeprom parsing
 
 zynqmp:
 - Some DT updates/cleanups
 - Fix IDcode for xck24
 - Remove empty mini config files
 - Add support for k24
 
 versal:
 - Remove empty mini config files
 
 versal_net:
 - Setup timer when runs in EL3
 - Build u-boot.elf for mini configurations
 
 zynq-gem:
 - Add support for new compatible strings
 - Remove support for Avnet Ultrazedev SOM
 - Handle SGMII with PCS phy
 
 spi:
 - Add support for gigadevice parts
 
 misc:
 - Remove CONFIG_TARGET_VENUS ifdef
 - Add missing headers to remove sparse warnings
 -----BEGIN PGP SIGNATURE-----
 
 iF0EABECAB0WIQQbPNTMvXmYlBPRwx7KSWXLKUoMIQUCY9PmzwAKCRDKSWXLKUoM
 IYWxAJwNgiXtFT17pBy+1M0JvSWgyvWF3QCfTQG2Krnw0+d65PF5A7UFTDL7SZM=
 =cMrc
 -----END PGP SIGNATURE-----

Merge tag 'xilinx-for-v2023.04-rc1' of https://source.denx.de/u-boot/custodians/u-boot-microblaze

Xilinx chnages for v2023.04-rc1

makefile:
- Add multi_dtb_fit dependency

clk:
- Handle error cases

microblaze:
- Disable falcon mode and cleanup code around

xilinx:
- Enable regular expression matching in board_fit_config_name_match()
- Fix FRU handling for 0xC1 format
- Fix Xilinx legacy format eeprom parsing

zynqmp:
- Some DT updates/cleanups
- Fix IDcode for xck24
- Remove empty mini config files
- Add support for k24

versal:
- Remove empty mini config files

versal_net:
- Setup timer when runs in EL3
- Build u-boot.elf for mini configurations

zynq-gem:
- Add support for new compatible strings
- Remove support for Avnet Ultrazedev SOM
- Handle SGMII with PCS phy

spi:
- Add support for gigadevice parts

misc:
- Remove CONFIG_TARGET_VENUS ifdef
- Add missing headers to remove sparse warnings
2023-01-27 10:15:39 -05:00
Samuel Holland
77024aa7d9 clk: sunxi: Add DE2 display-related clocks/resets
Add clock/reset definitions for display-related peripherals, including
the display engine, TCONs, and DSI and HDMI encoders, so those drivers
can be converted to DM clock consumers instead of directly manipulating
the CCU registers.

Signed-off-by: Samuel Holland <samuel@sholland.org>
2023-01-23 01:18:31 +00:00
Jay Buddhabhatti
29b58bba91 clk: versal: Return error in case if clock setup failed
Currently probe is getting success even if clock setup is failed
because of that u-boot is trying to access invalid clocks. So return
error if clock setup failed.

Signed-off-by: Jay Buddhabhatti <jay.buddhabhatti@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/fa78e71211e5f68f8dc1353b357f96e6283f65a8.1673335422.git.michal.simek@amd.com
2023-01-16 15:33:58 +01:00
Jagan Teki
a25338aa89 clk: rockchip: Add rv1126 clk support
Add clock driver support for Rockchip RV1126 SoC.

Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Signed-off-by: Jagan Teki <jagan@edgeble.ai>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2023-01-16 18:01:11 +08:00
Quentin Schulz
23b71addf9 rockchip: clk: add watchdog clock to px30_clk_enable
Add the PCLK_WDT_NS clock to px30_clk_enable so that the watchdog driver
can probe since it wants to enable this clock.

Cc: Quentin Schulz <foss+uboot@0leil.net>
Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2023-01-16 18:01:10 +08:00
Tom Rini
14f43797d0 Prepare v2023.01-rc4
-----BEGIN PGP SIGNATURE-----
 
 iQGzBAABCgAdFiEEGjx/cOCPqxcHgJu/FHw5/5Y0tywFAmOgaw0ACgkQFHw5/5Y0
 tyxIeQv8DfAAB8hN+wWeDhQAJBXBLvV+RrocGJ2lpuWN0DUgT955l0zSjP4eD5I/
 sSsT8iJ15obkbWHq61V9W81Velw5qR+gHW9IAzFKiQBfvdcdfgWFeme9fWp/gqxn
 vvPc2sULA9utkc+kQ+qJy2hmTM7I0ZbKzUwTXSv+Tp9on3vlc0quKSHiZ1EvHNww
 8tW13d1r+Be+CC+GVPrhJojfKBcYVJhW21rJMgb4JdfGNWKmpUpF6fUzHe0wiy2P
 HSnScr44E099t9RDZabw0V1fEgQqxIAmL1qQamXf9ddLZQM9Sq63lygTtGsqg61+
 qeHCZVjPg9cXayGfRVesH8sko3vW+IPuo0Q6Ox0vAyRSyzTpOcTuzn3RcMrq+mfu
 ZRF32aFJKVvAI3xesOj1aCBBYjl4POiHA8i3yeP9KcjqW3So0aphDtxp1idgwOZl
 kIxuC4ItWyF7xoyng/7RWwr2VjcKSyw58stRjfV+WNcByV4+ud1A59vsgZOqO49m
 0bLx5dGu
 =EX/F
 -----END PGP SIGNATURE-----

Merge tag 'v2023.01-rc4' into next

Prepare v2023.01-rc4

Signed-off-by: Tom Rini <trini@konsulko.com>
2022-12-21 13:09:01 -05:00
Johan Jonker
4d89330b8a rockchip: rk3128-cru: sync the clock dt-binding header from Linux
In order to update the DT for rk3128
sync the clock dt-binding header.
This is the state as of v6.0 in Linux.

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2022-12-19 10:56:12 +08:00
Bryan Brattlof
b6cbcd6155 arm: mach-k3: am62a: introduce auto-generated SoC data
Introduce the auto-generated clock tree and power domain data needed to
attach the am62a into the power-domain and clock frameworks of uboot

Signed-off-by: Bryan Brattlof <bb@ti.com>
2022-12-09 14:10:28 -05:00
Gabriel Fernandez
c8df960c8d clk: stm32mp13: introduce STM32MP13 RCC driver
STM32MP13 RCC driver uses Common Clock Framework and also a
'clk-stm32-core' API. Then STM32MPx RCC driver will contain only data
configuration (gates, mux, dividers and the way to check security)
or some specific clocks.
This API will be used by all new other generations of ST Socs.

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
Tested-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
2022-12-07 16:49:35 +01:00
Tom Rini
65cc0e2a65 global: Move remaining CONFIG_SYS_* to CFG_SYS_*
The rest of the unmigrated CONFIG symbols in the CONFIG_SYS namespace do
not easily transition to Kconfig. In many cases they likely should come
from the device tree instead. Move these out of CONFIG namespace and in
to CFG namespace.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-12-05 16:06:08 -05:00
Conor Dooley
4e405c68fb clk: microchip: mpfs: fix criticality of peripheral clocks
Sync the critical clocks in the U-Boot driver with those marked as
critical in Linux. The Linux driver has an explanation of why each clock
is considered to be critical, so import that too.

Fixes: 2f27c9219e ("clk: Add Microchip PolarFire SoC clock driver")
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Reviewed-by: Padmarao Begari <padmarao.begari@microchip.com>
2022-11-15 15:37:17 +08:00
Conor Dooley
88b697fb37 clk: microchip: mpfs: fix periph clk parentage
Not all "periph" clocks are children of the AHB clock, some have the AXI
clock as their parent & the mtimer clock is derived from the external
reference clock directly. Stop assuming the AHB clock to be the parent
of all "periph" clocks and define their correct parents instead.

Fixes: 2f27c9219e ("clk: Add Microchip PolarFire SoC clock driver")
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Reviewed-by: Padmarao Begari <padmarao.begari@microchip.com>
Tested-by: Padmarao Begari <padmarao.begari@microchip.com>
2022-11-15 15:37:17 +08:00
Conor Dooley
32cfdd5163 clk: microchip: mpfs: fix reference clock handling
The original devicetrees for PolarFire SoC messed up & defined the
msspll's output as a fixed-frequency, 600 MHz clock & used that as the
input for the clock controller node. The msspll is not a fixed
frequency clock and later devicetrees handled this properly. Check the
devicetree & if it is one of the fixed ones, register the msspll.
Otherwise, skip registering it & pass the reference clock directly to
the cfg clock registration function so that existing devicetrees are
not broken by this change.

As the MSS PLL is not a "cfg" or a "periph" clock, add a new driver for
it, based on the one in Linux.

Fixes: 2f27c9219e ("clk: Add Microchip PolarFire SoC clock driver")
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Reviewed-by: Padmarao Begari <padmarao.begari@microchip.com>
Tested-by: Padmarao Begari <padmarao.begari@microchip.com>
2022-11-15 15:37:17 +08:00
Conor Dooley
fb103971fe clk: microchip: mpfs: convert parent rate acquistion to get_get_rate()
Currently the clock driver for PolarFire SoC takes a very naive approach
to the relationship between clocks. It reads the dt to get an input
clock, assumes that that is fixed frequency, reads the "clock-frequency"
property & uses that to set up both the "cfg" and "periph" clocks.

Simplifying for the sake of incremental fixes, the "correct" parentage for
the clocks currently supported in U-Boot is that the "cfg" clocks should
be children of the fixed frequency clock in the dt. The AHB clock is one
of these "cfg" clocks and is the parent of the "periph" clocks.

Instead of passing the clock rate of the fixed-frequency clock to the
"cfg" and "periph" registration functions and the name of the parents,
pass their actual parents & use clk_get_rate() to determine their parents
rates.

The "periph" clocks are purely gate clocks and should not be reading the
AHB clocks registers to determine their rates, as they can simply report
the output of clk_get_rate() on their parent.

Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Reviewed-by: Padmarao Begari <padmarao.begari@microchip.com>
2022-11-15 15:37:17 +08:00
Tom Rini
7d8ab3cd63 u-boot-imx-20221024
-------------------
 
 CI: https://source.denx.de/u-boot/custodians/u-boot-imx/-/pipelines/13916
 
 - for 2022.01
 - rework Kontron boards (mx6 and mx8)
 - fixes for Toradex
 - fixes (SPI, CAAM, )
 - sync DT with Linux
 - fixes for Gateworks GW7903 and GW7904 PMIC
 - Engicam i.Core MX8M Plus EDIMM2.2
 -----BEGIN PGP SIGNATURE-----
 
 iG0EABECAC0WIQS2TmnA27QKhpKSZe309WXkmmjvpgUCY1aVgA8cc2JhYmljQGRl
 bnguZGUACgkQ9PVl5Jpo76YlhwCfXTQJzJXruk6UKg1zbsimD3bsChUAoJFzB3yp
 zft+THzNdQTnfUGN9u+U
 =JHxW
 -----END PGP SIGNATURE-----

Merge tag 'u-boot-imx-20221024' of https://gitlab.denx.de/u-boot/custodians/u-boot-imx

u-boot-imx-20221024
-------------------

CI: https://source.denx.de/u-boot/custodians/u-boot-imx/-/pipelines/13916

- for 2022.01
- rework Kontron boards (mx6 and mx8)
- fixes for Toradex
- fixes (SPI, CAAM, )
- sync DT with Linux
- fixes for Gateworks GW7903 and GW7904 PMIC
- Engicam i.Core MX8M Plus EDIMM2.2
2022-10-24 10:04:30 -04:00
Fabio Estevam
1703a7c4c2 clk-imx8mm: Only build QSPI clocks when CONFIG_NXP_FSPI=y
The QSPI clocks are only used when CONFIG_NXP_FSPI=y, so only build the
QSPI clocks in this case to reduce the final SPL binary size.

Signed-off-by: Fabio Estevam <festevam@denx.de>
2022-10-21 11:54:13 +02:00
Fabio Estevam
4ede070601 clk-imx8mm: Only build ecspi clocks when CONFIG_DM_SPI=y
The ecspi clocks are only used when CONFIG_DM_SPI=y, so only build the
ecspi clocks in this case to reduce the final SPL binary size.

Signed-off-by: Fabio Estevam <festevam@denx.de>
2022-10-21 11:54:13 +02:00
Fabio Estevam
0d158e0181 clk-imx8mm: Move CLK_ENET_AXI to the non-SPL section
Ethernet is not used inside SPL, so move the IMX8MM_CLK_ENET_AXI clock
inside the non-SPL block to reduce the final SPL binary size.

Signed-off-by: Fabio Estevam <festevam@denx.de>
2022-10-21 11:54:13 +02:00
Fabio Estevam
d63dc069ee clk-imx8mm: Only build PWM clocks in non-SPL code
PWM is not used inside SPL, so do not define the PWM clocks inside
SPL to reduce the final SPL binary size.

Signed-off-by: Fabio Estevam <festevam@denx.de>
2022-10-21 11:54:13 +02:00
Tom Rini
145a996592 Merge tag 'u-boot-rockchip-20221020' of https://source.denx.de/u-boot/custodians/u-boot-rockchip
- dts update and sync for rk356x, rk3288, rk3399 from Linux;
- Add rk3399 EAIDK-610 board support;
- Update for puma-rk3399 board;
- some fix and typo fix in different drivers;
2022-10-20 22:32:38 -04:00
Tom Rini
d843273a80 Merge https://source.denx.de/u-boot/custodians/u-boot-riscv 2022-10-20 09:11:08 -04:00
Tom Rini
dc3cb0abf4 Clock patches for 2023.01
This contains various fixes (some long overdue) for the next release.
 -----BEGIN PGP SIGNATURE-----
 
 iQGTBAABCgB9FiEEkGEdW86NSNID6GAoPuiP7LShEG4FAmNQLrdfFIAAAAAALgAo
 aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldDkw
 NjExRDVCQ0U4RDQ4RDIwM0U4NjAyODNFRTg4RkVDQjRBMTEwNkUACgkQPuiP7LSh
 EG59kQf/WHyc0gXWxzI2nCjlq+ERL12rdswsy1N6rPVB++a6qCO8puFJWoMOYNa0
 deEMye5lYlhPFnfLLBLuMtpoeQW6R0dsNCkUeGuVfmwWDLW77tqb9LSg3nqD4bMg
 Fd+mlkFVmKa0WU5/uklojHLQGUEzvFsTVfMmpfOr7js2jsOYXW6DBSXuF1PogTRh
 YOJ9+OFq5giNtoSj339s807S/sEbaM46C72h0S+2iKKIED5FGy4Hi+mN7q8/GUDS
 TP1zt5xuaYwu6qo586y9/yNPbmmfHF+Liw35EZCairyEAjxevjLw6xJsFyZvtTxM
 11hKabfN//eSMTTB6Q4ugahRM3nELg==
 =H1Iz
 -----END PGP SIGNATURE-----

Merge tag 'clk-2023.01' of https://source.denx.de/u-boot/custodians/u-boot-clk

Clock patches for 2023.01

This contains various fixes (some long overdue) for the next release.
2022-10-20 08:58:25 -04:00
Heinrich Schuchardt
e77ef0bb74 k210: fix k210_pll_calc_config()
The k210 driver is selected by sandbox_defconfig.
Building the sandbox on 32bit systems fails with:

test/dm/k210_pll.c: In function ‘dm_test_k210_pll_calc_config’:
include/linux/bitops.h:11:38: warning:
left shift count >= width of type [-Wshift-count-overflow]
   11 | #define BIT(nr)         (1UL << (nr))
      |                              ^~
test/dm/k210_pll.c:36:54: note: in expansion of macro ‘BIT’
   36 |                         error = abs((error - BIT(32))) >> 16;
      |                                              ^~~

Use the BIT_ULL() macro to create a u64 value.
Replace abs() by abs64() to get correct results on 32bit system
Apply the same for the unit test.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
2022-10-20 15:22:30 +08:00
Patrick Delaunay
19fb40a5e7 clk: update clk_clean_rate_cache to use private clk struct
In clk_clean_rate_cache, clk->rate should update the private clock
struct, in particular when CCF is activated, to save the cached
rate value.

When clk_get_parent_rate is called, the cached information
is read from pclk->rate, with pclk = clk_get_parent(clk).

As the cached is read from private clk data, the update should
be done also on it.

Fixes: 6b7fd3128f ("clk: fix set_rate to clean up cached rates for the hierarchy")
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
Link: https://lore.kernel.org/r/20220620153717.v2.1.Ifa06360115ffa3f3307372e6cdd98ec16759d6ba@changeid
Link: https://lore.kernel.org/r/20220712142352.RESEND.v2.1.Ifa06360115ffa3f3307372e6cdd98ec16759d6ba@changeid/
2022-10-19 12:28:30 -04:00
Michal Suchanek
aa36a74f0f rockchip: clk: pll: Fix constant typo
Fixes: bbda2ed584 ("rockchip: clk: pll: add common pll setting funcs")
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Link: https://lore.kernel.org/r/20220928104129.13240-1-msuchanek@suse.de
2022-10-19 12:06:48 -04:00
Michal Suchanek
a1265cd580 clk: change return type of clk_get_parent_rate from long long to ulong
All functions getting and setting clock rate use ulong for rate, only
clk_get_parent_rate is an exception. Change the return value to match
other clock rate funcrions.

Most users directly assign the rate to unsigned long anyway, and the few
users that use u64 (not s64) multiply the rate so they may need the
extra bits for the result in their use case.

Fixes: 4aa78300a0 ("dm: clk: Define clk_get_parent_rate() for clk operations")
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
Link: https://lore.kernel.org/r/20220928103757.11870-1-msuchanek@suse.de
2022-10-19 12:06:41 -04:00
Xavier Drudis Ferran
2cb23b80e4 arm: rockchip: rk3399: Program PLL clock for DDR at 50 MHz in documented range
The original code set up the DDR clock to 48 MHz, not 50MHz as
requested, and did it in a way that didn't satisfy the Application
Notes in RK3399 TRM [1]. 2.9.2.B says:

   PLL frequency range requirement
   [...]
   FOUTVCO: 800MHz to 3.2GHz

2.9.2.A :
   PLL output frequency configuration
   [...]
   FOUTVCO = FREF / REFDIV * FBDIV
   FOUTPOSTDIV = FOUTVCO / POSTDIV1 / POSTDIV2

FREF = 24 MHz

The original code gives FOUTVCO: 24MHz/1 * 12 = 288MHz < 800MHz
And the resulting FOUTPOSTDIV is 288MHz / 3 / 2 = 48MHz
but the requested frequency was 50MHz

Note:
2.7.2 Detail Register Description
PMUCRU_PPLL_CON0 says

   fbdiv
   Feedback Divide Value
   Valid divider settings are:
   [16, 3200] in integer mode

So .fbdiv = 12 wouldn't be right. But 2.9.2.C says:

   PLL setting consideration
   [...]
   The following settings are valid for FBDIV:
   DSMPD=1 (Integer Mode):
   12,13,14,16-4095 (practical value is limited to 3200, 2400, or 1600
   (FVCOMAX / FREFMIN))
   [...]

So .fbdiv = 12 would be right.

In any case FOUTVCO is still wrong. I thank YouMin Chen for
confirmation and explanation.

Despite documentation, I don't seem to be able to reproduce a
practical problem with the wrong FOUTVCO. When I initially found it I
thought some problems with detecting the RAM capacity in my Rock Pi 4B
could be related to it and my patch seemed to help. But since I'm no
longer able to reproduce the issue, it works with or without this
patch. And meanwhile a patch[2] by Lee Jones and YouMin Chen addresses
this issue. Btw, shouldn't that be commited?

So this patches solves no visible problem.  Yet, to prevent future
problems, I think it'd be best to stick to spec.

An alternative to this patch could be

    {.refdiv = 1, .fbdiv = 75, .postdiv1 = 6, .postdiv2 = 6};

This would theoretically consume more power and yield less jitter,
according to 2.9.2.C :

   PLL setting consideration
   [...]
   For lowest power operation, the minimum VCO and FREF frequencies
   should be used. For minimum jitter operation, the highest VCO and
   FREF frequencies should be used.
   [...]

But I haven't tried it because I don't think it matters much. 50MHz
for DDR is only shortly used by TPL at RAM init. Normal operation is
at 800MHz.  Maybe it's better to use less power until later when more
complex software can control batteries or charging or whatever ?

Cc: Simon Glass <sjg@chromium.org>
Cc: Philipp Tomsich <philipp.tomsich@vrull.eu>
Cc: Kever Yang <kever.yang@rock-chips.com>
Cc: Lukasz Majewski <lukma@denx.de>
Cc: Sean Anderson <seanga2@gmail.com>

Link: [1] https://opensource.rock-chips.com/images/e/ee/Rockchip_RK3399TRM_V1.4_Part1-20170408.pdf
Link: [2] https://patchwork.ozlabs.org/project/uboot/list/?series=305766

Signed-off-by: Xavier Drudis Ferran <xdrudis@tinet.cat>
Tested-by: Michal Suchánek <msuchanek@suse.de>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2022-10-19 19:30:48 +08:00
Tom Rini
300077cf8c Xilinx changes for v2023.01-rc1 (round 3)
fpga:
 - Create new uclass
 - Get rid of FPGA_DEBUG and use logging infrastructure
 
 zynq:
 - Enable early EEPROM decoding
 - Some DT updates
 
 zynqmp:
 - Use OCM_BANK_0 to check config loading permission
 - Change config object loading in SPL
 - Some DT updates
 
 net:
 - emaclite: Enable driver for RISC-V
 
 xilinx:
 - Fix static checker warnings
 - Fix GCC12 warning
 
 sdhci:
 - Read PD id from DT
 -----BEGIN PGP SIGNATURE-----
 
 iF0EABECAB0WIQQbPNTMvXmYlBPRwx7KSWXLKUoMIQUCY0UbQQAKCRDKSWXLKUoM
 IUA9AJ9EisuI90j8ziE5aDYCy/1MlESW4ACcDlsi7o6lYDx/wjniS2rwfztn5xE=
 =zjZe
 -----END PGP SIGNATURE-----

Merge tag 'xilinx-for-v2023.01-rc1-v3' of https://source.denx.de/u-boot/custodians/u-boot-microblaze

Xilinx changes for v2023.01-rc1 (round 3)

fpga:
- Create new uclass
- Get rid of FPGA_DEBUG and use logging infrastructure

zynq:
- Enable early EEPROM decoding
- Some DT updates

zynqmp:
- Use OCM_BANK_0 to check config loading permission
- Change config object loading in SPL
- Some DT updates

net:
- emaclite: Enable driver for RISC-V

xilinx:
- Fix static checker warnings
- Fix GCC12 warning

sdhci:
- Read PD id from DT
2022-10-11 09:57:08 -04:00
Venkatesh Yadav Abbarapu
673f18955e clk: versal: Mark versal_clock_setup() as static
Fix the following sparse and compile time warning
triggered with W=1:

drivers/clk/clk_versal.c:605:5:
warning: no previous prototype for 'versal_clock_setup'
[-Wmissing-prototypes]
605 | int versal_clock_setup(void)

Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com>
Link: https://lore.kernel.org/r/20221007105535.31902-1-venkatesh.abbarapu@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
2022-10-10 12:28:08 +02:00
Michael Trimarchi
710c4ffb89 clk: imx: clk-imx8mn add gpmi nand clocks
Add gpmi nand clock. Those clock can be used in mxs nand driver
to run nand to EDO mode 5, 4, ...

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Reviewed-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
2022-10-09 10:42:26 +02:00
Michael Trimarchi
d2e82ad9e0 clk: imx: gate2 support shared counter and relative clock functions
Add shared counter in order to avoid to swich off clock that
are already used.

Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Reviewed-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
2022-10-09 10:42:26 +02:00
Jim Liu
2a6218369c clk: nuvoton: Add support for NPCM845
Add clock controller driver for NPCM845

Signed-off-by: Jim Liu <JJLIU0@nuvoton.com>
Acked-by: Sean Anderson <seanga2@gmail.com>
2022-10-06 21:05:17 -04:00
Tom Rini
55ccdee315 Xilinx changes for v2023.01-rc1 (round 2)
xilinx:
 - Add support for new Versal NET SOC
 
 zynqmp:
 - Use mdio bus for ethernet phy description
 - Wire ethernet phy reset via i2c-gpio
 
 versal:
 - Config cleanup
 -----BEGIN PGP SIGNATURE-----
 
 iF0EABECAB0WIQQbPNTMvXmYlBPRwx7KSWXLKUoMIQUCYzGwogAKCRDKSWXLKUoM
 Ial4AJ9+4WHn0MV2X7gK1fyh4lUW7ggPhQCggsYlSoACgMgdji17SAPhCv/W3IA=
 =BmA9
 -----END PGP SIGNATURE-----

Merge tag 'xilinx-for-v2023.01-rc1-v2' of https://gitlab.denx.de/u-boot/custodians/u-boot-microblaze into next

Xilinx changes for v2023.01-rc1 (round 2)

xilinx:
- Add support for new Versal NET SOC

zynqmp:
- Use mdio bus for ethernet phy description
- Wire ethernet phy reset via i2c-gpio

versal:
- Config cleanup
2022-09-26 11:28:14 -04:00
Jay Buddhabhatti
ff33227819 clk: versal: Enable clock driver for Versal NET
Add support for Versal NET compatible string in clock driver.

Signed-off-by: Jay Buddhabhatti <jay.buddhabhatti@amd.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/20a35d0c1ffcc222fbe93dd406cdd0aff92f5223.1663589964.git.michal.simek@amd.com
2022-09-26 14:23:29 +02:00
Weijie Gao
40746bf429 clk: mediatek: add clock driver support for MediaTek MT7981 SoC
This patch adds clock driver support for MediaTek MT7981 SoC

Reviewed-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
2022-09-23 15:09:16 -04:00
Weijie Gao
37d5a9a29d clk: mediatek: add clock driver support for MediaTek MT7986 SoC
This patch adds clock driver support for MediaTek MT7986 SoC

Reviewed-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
2022-09-23 15:09:16 -04:00
Weijie Gao
ad832b915a clk: mediatek: add CLK_XTAL support for clock driver
This adds the CLK_XTAL macro/flag to allow modeling clocks which are
directly connected to the xtal clock.

Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
2022-09-23 15:09:16 -04:00
Weijie Gao
570b0840b1 clk: mediatek: add infrasys clock mux support
This patch adds infrasys clock mux support for mediatek clock drivers.

Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
2022-09-23 15:09:16 -04:00
Weijie Gao
98a8bbb9ea clk: mediatek: add support to configure clock driver parent
This patch adds support for a clock node to configure its parent clock
where possible.

Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
2022-09-23 15:09:16 -04:00
Weijie Gao
7fb33e9aea clk: mediatek: add CLK_BYPASS_XTAL flag to allow bypassing searching clock parent of xtal clock
The mtk clock framework in u-boot uses array index for searching clock
parent (kernel uses strings for search), so we need to specify a special
clock with ID=0 for CLK_XTAL in u-boot.

In the mt7622/mt7629 clock tree, the clocks with ID=0 never call
mtk_topckgen_get_mux_rate, adn return xtal clock directly. This what we
expected.

However for newer chips, they may have some clocks with ID=0 not
representing the xtal clock and still needs mtk_topckgen_get_mux_rate be
called. Current logic will make entire clock driver not working.

This patch adds a flag to indicate that whether a clock driver needs clocks
with ID=0 to call mtk_topckgen_get_mux_rate.

Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
2022-09-23 15:09:16 -04:00
Tom Rini
245746e8e0 First set of u-boot-at91 features for the 2023.01 cycle
-----BEGIN PGP SIGNATURE-----
 
 iQFQBAABCgA6FiEEqxhEmNJ6d7ZdeFLIHrMeAg6sL8gFAmMoEdgcHGV1Z2VuLmhy
 aXN0ZXZAbWljcm9jaGlwLmNvbQAKCRAesx4CDqwvyNvEB/4nEeiBx7Lo1gK+79PJ
 9kCUngglHRu3/+FJMpcOp+2b6sSW1IZs8qGBMAMFSRoFElrLMMbVEgBR0ZfJCl3c
 It0xN9Buhe8muwtAdE8Amr4PddUEynzglVPpFUFfir6ZqFAcedmN6iuh+K82r7Be
 7s/8tRb2hVp//TpkEntf2yxrYnyeW4qiXyUxbUhaUyyhkM3RBXySuY4qnaaLp3NY
 R9rsIY5j3kA2QylebEamlXI+KDvszrGbkUOUUrlwkygQNR/GmAYQPlY1TdBwk0wE
 U1CO8zQYaL3OY998lU32pMVClmwyXbn2i7KAyMm3TEgrfpjQsLTS2BK+w+RBdMGL
 XGnt
 =lRvM
 -----END PGP SIGNATURE-----

Merge tag 'u-boot-at91-2023.01-a' of https://source.denx.de/u-boot/custodians/u-boot-at91 into next

First set of u-boot-at91 features for the 2023.01 cycle:

This feature set includes the important update on PIO4 pinctrl driver
that solves a long time mismatch between Linux and U-boot, related on
the unification of pinctrl and gpio driver support, now respecting the
pinctrl bindings ABI; and also support for pinctrl subnodes. The feature
set also adds support for PDA screen detection for sam9x60_curiosity
board , one fix for SD-Card reinsertion and one fix for sam9x60 clocks.
2022-09-20 08:49:36 -04:00
Tom Rini
e9a1ff9724 Merge branch 'master' into next
Signed-off-by: Tom Rini <trini@konsulko.com>
2022-09-19 16:07:12 -04:00
Mihai Sain
56ce54a97c clk: at91: sam9x60: change parent clock from mck_pres to mck_div
ddrck and qspick should have mck_div as parent clocks to be in sync with
linux driver.

Signed-off-by: Mihai Sain <mihai.sain@microchip.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
2022-09-19 09:50:17 +03:00
Jesse Taube
79f7632e80 clk: imx: Add initial support for i.MXRT1170 clock driver
Add clock driver support for i.MXRT1170.

Signed-off-by: Jesse Taube <Mr.Bossman075@gmail.com>
2022-09-18 20:42:56 +02:00
Jesse Taube
2242ac5d80 clk: imx: Add i.MXRT11xx pllv3 variant
The i.MXRT11 series has two new pll types but are variants of existing.
This patch adds the ability to read one of the pll types' frequency
as it can't be changed unlike the generic pll it also has the
division factors swapped.

Signed-off-by: Jesse Taube <Mr.Bossman075@gmail.com>
2022-09-18 20:42:56 +02:00
Chin-Ting Kuo
a7e8220474 clk: aspeed: Get HCLK frequency support
User can get correct HCLK frequency during driver probe stage
by adding the following configuration in the device tree.
"clocks = <&scu ASPEED_CLK_AHB>".

Signed-off-by: Chin-Ting Kuo <chin-ting_kuo@aspeedtech.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
2022-09-13 12:08:40 -04:00
Tom Rini
e9de8c8c64 - simplify the STM32MP15x package parsing code
- remove test on CONFIG_DM_REGULATOR in stm32mp1 board
   and enable CONFIG_DM_REGULATOR for stm32f769-disco
 - handle ck_usbo_48m clock provided by USBPHYC to fix the command 'usb start'
   after alignment with Linux kernel v5.19 DT (clocks = <&usbphyc>)
 - Fix SYS_HZ_CLOCK value for stih410-b2260 board
 - Switch STMM32MP15x DHSOM to FMC2 EBI driver
 - Remove hwlocks from pinctrl in STM32MP15x to avoid issue with kernel
 -----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCgAdFiEE56Yx6b9SnloYCWtD4rK92eCqk3UFAmMZoW4ACgkQ4rK92eCq
 k3W2MAgAsmy2aSlMYo/AGlJ/KCrZuk6OirNHtdOdacvbcdUUbpkNpBSjdkrRm2If
 VUnY1utIIJe6gFgnBUxXJ3RF5FZuhkdawc6V25HtDp6H3WamzJknKs5Vc4TlKp59
 hZCOto7/+G/cd2XLdCKFUBl+new1pdDPsEm56+57DeZ7QGAQRX35PUQ5+HBjQJ/N
 n/wJgS6wkEdIQLLwmCVxbHUkC+pRotTza5F2A0qZJgYPMcMpVFYKtzIa4GbWB5YS
 MKGHbM8f3C8RLPQaHHTRycoA2Yor1I52B4Oi7605c5zHQr9pjrgtWsernDzkIhsB
 ThYHSYQBUBTY4HBfzFwzCkVGqqLWNg==
 =PMFY
 -----END PGP SIGNATURE-----

Merge tag 'u-boot-stm32-20220907' of https://source.denx.de/u-boot/custodians/u-boot-stm

- simplify the STM32MP15x package parsing code
- remove test on CONFIG_DM_REGULATOR in stm32mp1 board
  and enable CONFIG_DM_REGULATOR for stm32f769-disco
- handle ck_usbo_48m clock provided by USBPHYC to fix the command 'usb start'
  after alignment with Linux kernel v5.19 DT (clocks = <&usbphyc>)
- Fix SYS_HZ_CLOCK value for stih410-b2260 board
- Switch STMM32MP15x DHSOM to FMC2 EBI driver
- Remove hwlocks from pinctrl in STM32MP15x to avoid issue with kernel
2022-09-08 08:33:41 -04:00
Tom Rini
59c51fa4ab Merge https://source.denx.de/u-boot/custodians/u-boot-riscv 2022-09-06 09:01:39 -04:00
Patrick Delaunay
06328d1411 clk: stm32mp: handle ck_usbo_48m clock provided by USBPHYC
Handle the input clock of RCC USB_PHY_48, provided by USBPHYC
and named "ck_usbo_48m".

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
2022-09-06 13:54:50 +02:00
Icenowy Zheng
d13cd77068 dt-bindings: clock: sifive: sync FU740 PRCI clock binding header
This commit sychronizes the header file for FU740 PRCI clocks with the
one from Linux 5.19.

The constant values are the same, but all constant names are changed
(most are just prefixed with FU740_).

Signed-off-by: Icenowy Zheng <uwu@icenowy.me>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
2022-09-06 13:00:15 +08:00
Michal Suchanek
f103c11266 clk: rockchip: rk3399: Fix Unknown clock 77 on mmc@fe310000
Adding some debug prints I can see:

MMC:   mmc@fe320000: Got clock clock-controller@ff760000 76
mmc@fe310000: Got clock clock-controller@ff760000 77
Unknown clock 77
rockchip_dwmmc_get_mmc_clk: err=-2
mmc@fe310000: 3, mmc@fe320000: 1, mmc@fe330000: 0

According to kernel code the SDIO clock is identical to SDMMC clock
except for the con 16->15 change.

Add support for the clock to avoid the error.

Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2022-09-04 20:00:39 +08:00
Marek Behún
61143f741e treewide: Fix Marek's name and change my e-mail address
Fix diacritics in some instances of my name and change my e-mail address
to kabel@kernel.org.

Add corresponding .mailmap entries.

Signed-off-by: Marek Behún <kabel@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
2022-07-21 10:14:04 +02:00
Samuel Holland
66391263f8 reset: sunxi: Reuse the platform data from the clock driver
The clock and reset drivers use the exact same platform data. Simplify
them by sharing the object. This is safe because the parent device
(the clock device) always gets its driver model callbacks run first.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Acked-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2022-07-18 09:37:50 +01:00
Samuel Holland
5af97b6ff7 clk: sunxi: Convert driver private data to platform data
All of the driver private data should really be platform data since it
is determined statically (selected by the compatible string or extracted
from the devicetree). Move everything to platform data, so it can be
provided when binding the driver. This is useful for SPL, or for
instantiating the driver as part of an MFD.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2022-07-18 09:37:50 +01:00
Samuel Holland
46fa23f9ee clk: sunxi: Use a single driver for all variants
Now that all of the variants use the same bind/probe functions and ops,
there is no need to have a separate driver for each variant. Since most
SoCs contain two variants (the main CCU and PRCM CCU), this saves a bit
of firmware size and RAM.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
[Andre: add F1C100s support]
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2022-07-18 09:37:49 +01:00
Samuel Holland
d39088ad9c reset: sunxi: Get the reset count from the CCU descriptor
This allows all of the clock drivers to use a common bind function.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
[Andre: add F1C100s support]
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2022-07-18 09:37:49 +01:00
Samuel Holland
6827aba348 clk: sunxi: Prevent out-of-bounds gate array access
Because the gate arrays are not given explicit sizes, the arrays are
only as large as the highest-numbered gate described in the driver.
However, only a subset of the CCU clocks are needed by U-Boot. So there
are valid clock specifiers with indexes greater than the size of the
arrays. Referencing any of these clocks causes out-of-bounds access.
Fix this by checking the identifier against the size of the array.

Fixes: 0d47bc7056 ("clk: Add Allwinner A64 CLK driver")
Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2022-07-18 09:37:49 +01:00
Samuel Holland
49b2b0a2b6 clk: sunxi: Store the array sizes in the CCU descriptor
The reset array size is currently used for bounds checking in the reset
driver. The same bounds check should really be done in the clock driver.

Currently, the array size is provided to the reset driver separately
from the CCU descriptor, which is a bit strange. Let's do this the usual
way, with the array sizes next to the arrays themselves.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
[Andre: add F1C100s support]
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2022-07-18 09:37:49 +01:00
Weijie Gao
e75cc00982 clk: mtmips: add clock driver for MediaTek MT7621 SoC
This patch adds a clock driver for MediaTek MT7621 SoC.
This driver provides clock gate control as well as getting clock frequency
for CPU/SYS/XTAL and some peripherals.

Reviewed-by: Sean Anderson <seanga2@gmail.com>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
2022-07-13 23:03:37 +02:00
Tom Rini
36b661dc91 Merge branch 'next' 2022-07-11 14:58:57 -04:00
Joel Stanley
50204533dc clk/ast2500: Add SD clock
In order to use the clock from the sdhci driver, add the SD clock.

Signed-off-by: Joel Stanley <joel@jms.id.au>
2022-07-06 14:31:29 -04:00
Joel Stanley
85bb3a4eee clk/ast2600: Adjust eMMC clock names
Adjust clock to stay compatible with those used by the Linux kernel
device tree.

Signed-off-by: Joel Stanley <joel@jms.id.au>
2022-07-06 14:31:29 -04:00
Joel Stanley
67e20f9d65 clk/aspeed: Add debug message when clock fails
A common message across platforms that prints the clock number.

Signed-off-by: Joel Stanley <joel@jms.id.au>
2022-07-06 14:31:29 -04:00
Teik Heng Chong
ef5ba2cef4 drivers: clk: Update license for Intel N5X device
All the source code of clk-mem-n5x.c and clk-n5x.c are from Intel,
update the license to use both GPL2.0 and BSD-3 Clause because this
copy of code may used for open source and internal project.

Signed-off-by: Teik Heng Chong <teik.heng.chong@intel.com>
Reviewed-by: Tien Fong Chee <tien.fong.chee@intel.com>
2022-07-01 15:00:39 +08:00
Samuel Holland
33112ae021 clk: sunxi: Add additional RTC compatible strings
Compatible strings for some new RTC hardware variants were added to
the binding. Add them to the driver in preparation for supporting
those new SoCs.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2022-06-26 11:22:53 +01:00
Etienne Carriere
38a905ecf9 clk: scmi: support SCMI multi-channel
Update SCMI clock driver to get its assigned SCMI channel during
initialization. This change allows SCMI clock protocol to use a
dedicated channel when defined in the DT. The reference is saved
in SCMI clock driver private data.

Cc: Lukasz Majewski <lukma@denx.de>
Cc: Sean Anderson <seanga2@gmail.com>
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
2022-06-23 13:12:55 -04:00
Etienne Carriere
8bcb1b4898 firmware: scmi: prepare scmi uclass API to multi-channel
Changes SCMI driver API function devm_scmi_process_msg() to add
an SCMI channel reference argument for when SCMI agent supports
SCMI protocol specific channels. First argument of devm_scmi_process_msg()
is also change to point to the caller SCMI protocol device rather
than its parent device (the SCMI agent device).

The argument is a pointer to opaque struct scmi_channel known from
the SCMI transport drivers. It is currently unused and caller a pass
NULL value. A later change will enable such support once SCMI protocol
drivers have means to get the channel reference during initialization.

Cc: Lukasz Majewski <lukma@denx.de>
Cc: Sean Anderson <seanga2@gmail.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
2022-06-23 13:12:55 -04:00
Tom Rini
52af0101be Merge branch 'master' into next
Merge in v2022.07-rc5.
2022-06-20 14:40:59 -04:00
Patrick Delaunay
b99293338e clk: Add directory for STM32 clock drivers
Add a directory in drivers/clk to regroup the clock drivers for all
STM32 Soc with CONFIG_ARCH_STM32 (MCUs with cortex M) or
CONFIG_ARCH_STM32MP (MPUs with cortex A).

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Grzegorz Szymaszek <gszymaszek@short.pl>
Acked-by: Sean Anderson <seanga2@gmail.com>
Change-Id: I955af307963f732167396f0157a30cf2fc91f150
2022-06-17 14:11:43 +02:00
Andrey Zhizhikin
65d5931d02 clk: imx8mp: use usb_core_ref for usb_root_clk
Upstream commit 7a2c3be95a ("clk: imx8mp: Fill in DWC3 USB, USB PHY,
HSIOMIX clock") added usb_core_ref for USB Controller but never set it
to be used as a clock source, using rather "osc_32k" instead.

This produces following boot log message:
"clk_register: failed to get osc_32k device (parent of usb_root_clk)"

Fix the USB controller clock source by using usb_core_ref instead of
osc_32k.

Fixes: 7a2c3be95a ("clk: imx8mp: Fill in DWC3 USB, USB PHY, HSIOMIX clock")
Signed-off-by: Andrey Zhizhikin <andrey.zhizhikin@leica-geosystems.com>
Cc: Fabio Estevam <festevam@denx.de>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: Fabio Estevam <festevam@denx.de>
2022-06-14 21:25:26 +02:00
Andrey Zhizhikin
698c0411cf clk: imx8mp: fix root clock names for ecspi
Root clock name contained underscore, which does not match to the actual
clock name.

Correct the name to match what is present in the FDT.

Fixes: 87f958810f ("clk: imx8mp: Add ECSPI clocks")
Signed-off-by: Andrey Zhizhikin <andrey.zhizhikin@leica-geosystems.com>
Cc: Fabio Estevam <festevam@denx.de>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: uboot-imx <uboot-imx@nxp.com>
Reviewed-by: Fabio Estevam <festevam@denx.de>
2022-06-14 21:25:26 +02:00
Suman Anna
4b8903a999 arm: mach-k3: am62: Introduce autogenerated SoC data
Introduce autogenerated SoC data support clk and device data for the
AM62. Hook it upto to power-domain and clk frameworks of U-Boot.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
2022-06-10 13:37:32 -04:00
Andre Przywara
d6cb09d89d clk: sunxi: add and use dummy gate clocks
Some devices enumerate various clocks in their DT, and many drivers
just blanketly try to enable all of them. This creates problems
since we only model a few gate clocks, and the clock driver outputs
a warning when a clock is not described:
=========
sunxi_set_gate: (CLK#3) unhandled
=========

Some clocks don't have an enable bit, or are already enabled in a
different way, so we might want to just ignore them.

Add a CCU_CLK_F_DUMMY_GATE flag that indicates that case, and define
a GATE_DUMMY macro that can be used in the clock description array.
Define a few clocks, used by some pinctrl devices, that way to suppress
the runtime warnings.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Samuel Holland <samuel@sholland.org>
2022-05-24 01:16:15 +01:00
Andre Przywara
444ab3569b clk: sunxi: add PIO bus gate clocks
The introduction of the DM pinctrl driver made its probe function enable
all clocks enumerated in the DT. This includes the "CLK_BUS_PIO" (and
variations) gate clock. Also CLK_PLL_PERIPH0 is used by the R_CCU device.
So far we didn't describe those clocks in our clock driver.
As we enable them already in the SPL, the devices happen to work, but
the clock driver still complains about not finding those clocks:
=========
sunxi_set_gate: (CLK#58) unhandled
=========

Add the one-liners that are needed to announce the gate bit for those
clocks, to silence that message on the console.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Samuel Holland <samuel@sholland.org>
2022-05-24 01:15:09 +01:00
Samuel Holland
596247e54b clk: sunxi: h6_r: Correct the driver name
H6 is from the sun50i family, not sun6i.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2022-05-24 01:15:01 +01:00
George Hilliard
89dd650f20 clk: sunxi: implement clock driver for suniv f1c100s
The f1c100s has a clock tree similar to those of other sunxi parts.
Add support for it.

Signed-off-by: George Hilliard <thirtythreeforty@gmail.com>
Signed-off-by: Yifan Gu <me@yifangu.com>
Acked-by: Sean Anderson <seanga2@gmail.com>
[Andre: add PIO and I2C]
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2022-05-23 00:37:51 +01:00
Marek Vasut
05a3a028c1 clk: stm32mp1: Add missing newline
Add missing newline to this debug message, no functional change.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Cc: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
2022-05-10 13:56:11 +02:00
Heinrich Schuchardt
d657766819 clk: scmi: fix scmi_clk_get_attibute()
Local variable out.name lives on the stack and therefore cannot
be returned directly. Move the strdup() call into the function.
(Coverity 352460)

Fixes: 7c33f78983 ("clk: scmi: register scmi clocks with CCF")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
2022-05-05 19:37:11 -04:00
Jim Liu
c7554574ff clk: nuvoton: Add support for NPCM750
Add clock controller driver for NPCM750

Signed-off-by: Jim Liu <JJLIU0@nuvoton.com>
Signed-off-by: Stanley Chu <yschu@nuvoton.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
2022-05-05 09:28:47 -04:00
Simon Glass
747093dd40 vpl: Add Kconfig options for VPL
Add VPL versions of commonly used Kconfig options.

Signed-off-by: Simon Glass <sjg@chromium.org>
2022-05-02 09:58:13 -04:00
Vyacheslav Bocharov
66a657b7c6 clk: meson: update driver for g12a-ao clocks
Update g12a-ao clk driver:
- move clk->id check to .request function
- remove unnecessary check (gate->reg == 0)

Signed-off-by: Vyacheslav Bocharov <adeep@lexina.in>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20220424082159.757622-4-adeep@lexina.in
2022-04-25 09:25:00 +02:00
Vyacheslav Bocharov
4da0986562 clk: meson: fix driver name for g12a-ao clocks
Update the clk-g12a-ao driver from "axg" to "g12a"

Signed-off-by: Vyacheslav Bocharov <adeep@lexina.in>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20220424082159.757622-3-adeep@lexina.in
2022-04-25 09:25:00 +02:00
Vyacheslav Bocharov
dcccf73004 clk: meson: add minimal driver for axg-ao clocks
Add minimal driver AO clocks on meson AXG family. Only ADC related clocks
are supported.

Signed-off-by: Vyacheslav Bocharov <adeep@lexina.in>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20220424082159.757622-2-adeep@lexina.in
2022-04-25 09:24:59 +02:00
Paweł Jarosz
730a402450 rockchip: rk3066: add clock driver for rk3066 soc
Add the clock driver for the rk3066 platform.

Derived from the rk3288 and rk3188 driver it
supports only a bare minimum to bring up the system
to reduce the TPL size for:
  SDRAM clock configuration.
  The boot devices NAND, EMMC, SDMMC, SPI.
  A UART for the debug messages (fixed) at 115200n8.
  A SARADC for the recovery button.
  A TIMER for the delays (fixed).

There's support for two possible frequencies,
the safe 600MHz which will work with default pmic settings and
will be set to get away from the 24MHz default and
the maximum of 1.416Ghz, which boards can set if they
were able to get pmic support for it.

After the clock tree is set during the TPL probe
there's no parent update support.

In OF_REAL mode the drivers ns16550.c and dw-apb-timer.c
obtain the (fixed) clk_get_rate from the clock driver
instead of platdata.

The rk3066 cru node has a number of assigned-clocks properties
that call the .set_rate() function. Add them to the list so that
they return a 0 instead of -ENOENT.

Signed-off-by: Paweł Jarosz <paweljarosz3691@gmail.com>
Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2022-04-18 11:25:13 +08:00
Chris Morgan
0abb5b0426 rockchip: clk: add clocks to px30_clk_enable
Add the HCLK_OTG, HCLK_SFC, and SCLK_SFC clocks to px30_clk_enable.
Without this change U-Boot reports an error of "Enable
clock-controller@ff2b0000 failed" on boot when using the SFC or USB in
U-Boot.

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2022-04-18 11:25:12 +08:00
Marek Vasut
2c6ae0a15f clk: imx8mp: Fix 24M and 32k clock
Fix registration of 24M and 32k clock, those got applied or rebased
incorrectly, so fill in the correct code.

Fixes: 7a2c3be95a ("clk: imx8mp: Fill in DWC3 USB, USB PHY, HSIOMIX clock")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Ye Li <ye.li@nxp.com>
2022-04-13 09:38:25 +02:00
Elmar Albert
87f958810f clk: imx8mp: Add ECSPI clocks
Add clock tables required for bing up ECSPI interfaces

Signed-off-by: Elmar Albert <ealbert@data-modul.com>
Cc: Fabio Estevam <festevam@denx.de>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: uboot-imx <uboot-imx@nxp.com>
Signed-off-by: Elmar Albert <ealbert@data-modul.com>
Reviewed-by: Fabio Estevam <festevam@denx.de>
2022-04-12 23:27:32 +02:00
Jesse Taube
a2d6fbf5ff clk: imxrt: Use dts for anatop base address
In Linux IMX and IMXRT use the device tree to hold the anatop address.
The anatop is used in clock drivers as it controls the internal PLLs
This will move the macro from asm/arch-imxrt to the device tree.
This presumably should also be done with the other IMX boards as well.

Signed-off-by: Jesse Taube <Mr.Bossman075@gmail.com>
2022-04-12 21:08:23 +02:00
Marek Vasut
7a2c3be95a clk: imx8mp: Fill in DWC3 USB, USB PHY, HSIOMIX clock
Add clock tables required to bring up DWC3 USB, USB PHY and HSIOMIX domain.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
2022-04-12 17:33:56 +02:00
Angus Ainslie
129f5102d2 clk: imx8m: reduce rate table duplication
Re-factor the imx8m[nmpq] rate tables into the common pll1416x clock
driver.

43cdaa1567ad3 ("clk: imx8mm: Move 1443X/1416X PLL clock structure to common place")

Signed-off-by: Angus Ainslie <angus@akkea.ca>
Tested-by: Adam Ford <aford173@gmail.com> #imx8mm-beacon
2022-04-12 17:33:55 +02:00
Angus Ainslie
11c8ab01f3 clk: imx8mq: Add a clock driver for the imx8mq
This is a DM clock driver based off the imx8mm u-boot driver and the linux
kernel driver.

All of the PLLs and clocks are initialized so the subsystems below are
functional and tested.

1) USB host and peripheral
2) ECSPI
3) UART
4) I2C all busses
5) USDHC for eMMC support
6) USB storage
7) GPIO
8) DRAM

Signed-off-by: Angus Ainslie <angus@akkea.ca>
Acked-by: Sean Anderson <seanga2@gmail.com>
2022-04-12 17:33:55 +02:00
Tommaso Merciai
e2d074cead clk: imx8mm: add pwm clocks support
Add clocks support for the PWM controllers. This is ported from
Linux v5.17-rc8.

Signed-off-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com>
2022-04-12 17:33:55 +02:00
Tom Rini
037ef53cf0 Xilinx changes for v2022.07-rc1 v2
xilinx:
 - Allow booting bigger kernels till 100MB
 
 zynqmp:
 - DT updates (reset IDs)
 - Remove unneeded low level uart initialization from psu_init*
 - Enable PWM features
 - Add support for 1EG device
 
 serial_zynq:
 - Change fifo behavior in DEBUG mode
 
 zynq_sdhci:
 - Fix BASECLK setting calculation
 
 clk_zynqmp:
 - Add support for showing video clock
 
 gpio:
 - Update slg driver to handle DT flags
 
 net:
 - Update ethernet_id code to support also DM_ETH_PHY
 - Add support for DM_ETH_PHY in gem driver
 - Enable dynamic mode for SGMII config in gem driver
 
 pwm:
 - Add driver for cadence PWM
 
 versal:
 - Add support for reserved memory
 
 firmware:
 - Handle PD enabling for SPL
 - Add support for IOUSLCR SGMII configurations
 
 include:
 - Sync phy.h with Linux
 - Update xilinx power domain dt binding headers
 -----BEGIN PGP SIGNATURE-----
 
 iF0EABECAB0WIQQbPNTMvXmYlBPRwx7KSWXLKUoMIQUCYkxUZwAKCRDKSWXLKUoM
 IXJ2AKCQcoFK7wanCCvZfuEJCSwO5E4eCACginE2CFVXKcY1P8ta4ESusjY2TH0=
 =HOoS
 -----END PGP SIGNATURE-----

Merge tag 'xilinx-for-v2022.07-rc1-v2' of https://source.denx.de/u-boot/custodians/u-boot-microblaze

Xilinx changes for v2022.07-rc1 v2

xilinx:
- Allow booting bigger kernels till 100MB

zynqmp:
- DT updates (reset IDs)
- Remove unneeded low level uart initialization from psu_init*
- Enable PWM features
- Add support for 1EG device

serial_zynq:
- Change fifo behavior in DEBUG mode

zynq_sdhci:
- Fix BASECLK setting calculation

clk_zynqmp:
- Add support for showing video clock

gpio:
- Update slg driver to handle DT flags

net:
- Update ethernet_id code to support also DM_ETH_PHY
- Add support for DM_ETH_PHY in gem driver
- Enable dynamic mode for SGMII config in gem driver

pwm:
- Add driver for cadence PWM

versal:
- Add support for reserved memory

firmware:
- Handle PD enabling for SPL
- Add support for IOUSLCR SGMII configurations

include:
- Sync phy.h with Linux
- Update xilinx power domain dt binding headers
2022-04-05 11:27:39 -04:00
Michal Simek
6f735e4178 clk: zynqmp: Add support for for DP audio/video clocks
Add support for getting rate for DP audio and video clocks.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/8792efe1fd9715f7c8a2e1e24f0454fb5b25d833.1648552434.git.michal.simek@xilinx.com
2022-04-05 15:09:47 +02:00
Sean Anderson
682e73d235 clk: Use generic CCF ops where possible
This converts most CCF drivers to use generic ops. imx6q is the only
outlier, where we retain the existing functionality by moving the check to
request().

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/20220320203446.740178-2-seanga2@gmail.com
[ fixed missing include for at91 ]
Signed-off-by: Sean Anderson <seanga2@gmail.com>
2022-03-30 14:18:56 -04:00
Sean Anderson
3a11b5ae65 clk: ccf: Add some helper functions for clock ops
Most CCF drivers follow a common pattern where their clock ops defer the
actual operation to the backing CCF clock. Add some generic implementations
of these functions to reduce duplication of code.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/20220320203446.740178-1-seanga2@gmail.com
2022-03-30 13:03:29 -04:00
Sean Anderson
e7075ff7b3 clk: Consolidate some clock functions
These functions are exactly the same as their "nodev" varients, except they
accept a device and not an ofnode. Rewrite them to just call the other
function.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Link: https://lore.kernel.org/r/20220227190113.1617498-1-seanga2@gmail.com
2022-03-30 13:03:26 -04:00
Sean Anderson
ac15e789ca clk: Make clk_free return void
Most callers of this function do not check the return value, and it is
unclear what action they should take if it fails. If a function is freeing
multiple clocks, it should not stop just because the first one failed.
Since the callbacks can no longer fail, just convert the return type to
void.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Link: https://lore.kernel.org/r/20220115222504.617013-8-seanga2@gmail.com
2022-03-30 13:02:55 -04:00
Sean Anderson
276d446757 clk: Make rfree return void
When freeing a clock there is not much we can do if there is an error, and
most callers do not actually check the return value. Even e.g. checking to
make sure that clk->id is valid should have been done in request() in the
first place (unless someone is messing with the driver behind our back).
Just return void and don't bother returning an error.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Link: https://lore.kernel.org/r/20220115222504.617013-2-seanga2@gmail.com
2022-03-30 13:02:55 -04:00
Tom Rini
34d2b7f203 Prepare v2022.04-rc5
-----BEGIN PGP SIGNATURE-----
 
 iQGzBAABCgAdFiEEGjx/cOCPqxcHgJu/FHw5/5Y0tywFAmJBxXQACgkQFHw5/5Y0
 tywKKAv+L+sCmqfJ4Zy2cdzWkGZI3NZMWi8yzUUU37RH5I+3Blht+z6dMslm9gCB
 7/PwS5y7WH3l3wEdeXcw4FUCgNh3D8YyfCcVCsQ0Qxig49xwWz8Jn6t+haOWD6eW
 uXim+gSG+ceWTBrKf3InzXN5fHPIcF66r+k3opwAwIYKpT8p8CgM4ewshBCAsc6t
 6qSLf+A64JNv/y2DTS+sPDY68tnplbyRvrNb6YEazOF6b6SnSE2j+EH8RkIZ+2yT
 cTUhQ2o9JJIKnaG9MTqHB+XVe80oPB7bTWInFo2JxGn98XeS7CTCcnDZhLqWrvHF
 gBfcpEcVE2blVbg/Vo2x4rnU1dop44ch6pE9k5SPFJcPdlzdwFHHgGyfGi9LtD4K
 JAvaIQdz6ZEOQqShpCxcbL/g2/uoRaXFqC7E8IE+WdFMXGBQoZpqaoBMoefnyplk
 xrzqaQye38JgZDX0ku4cm4SMArAfr4sVHcdDlSlzY3y2KQ8Ead25irRvq7GoQ2Ad
 Odo9taQF
 =9g2Y
 -----END PGP SIGNATURE-----

Merge tag 'v2022.04-rc5' into next

Prepare v2022.04-rc5
2022-03-28 12:36:49 -04:00
Damien Le Moal
fd426b3106 k210: use the board vendor name rather than the marketing name
"kendryte" is the marketing name for the K210 RISC-V SoC produced by
Canaan Inc. Rather than "kendryte,k210", use the usual "canaan,k210"
vendor,SoC compatibility string format in the device tree files and
use the SoC name for file names.
With these changes, the device tree files are more in sync with the
Linux kernel DTS and drivers, making uboot device tree usable by the
kernel.

Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
2022-03-15 17:43:11 +08:00
Etienne Carriere
7c33f78983 clk: scmi: register scmi clocks with CCF
Implements SCMI APIs to retrieve the number exposed SCMI clocks using
SCMI_PROTOCOL_ATTRIBUTES messages and the names of the clocks using
SCMI_CLOCK_ATTRIBUTES messages.

This change updates sandbox SCMI clock test driver to manage these
2 new message IDs.

Cc: Lukasz Majewski <lukma@denx.de>
Cc: Sean Anderson <seanga2@gmail.com>
Cc: Clement Leger <clement.leger@bootlin.com>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
2022-03-02 17:42:06 -05:00
Etienne Carriere
6983710a31 scmi: change parameter dev in devm_scmi_process_msg
Changes devm_scmi_process_msg() first argument from target parent device
to current SCMI device and lookup the SCMI agent device among SCMI device
parents for find the SCMI agent operator needed for communication with
the firmware.

This change is needed in order to support CCF in clk_scmi driver unless
what CCF will fail to find the right udevice related to exposed SCMI
clocks.

This patch allows to simplify the caller sequence, using SCMI device
reference as parameter instead of knowing SCMI uclass topology. This
change also adds some protection in case devm_scmi_process_msg() API
function is called for an invalid device type.

Cc: Lukasz Majewski <lukma@denx.de>
Cc: Sean Anderson <seanga2@gmail.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
2022-03-02 17:42:06 -05:00
Patrick Delaunay
b0cdd8287a clk: ccf: correct the test on the parent uclass in clk_enable/clk_disable
It is safe to check if the uclass id on the device is UCLASS_CLK
before to call the clk_ functions, but today this comparison is
not done on the device used in API: clkp->dev->parent
but on the device himself: clkp->dev.

This patch corrects this behavior and tests if the parent device
is a clock device before to call the clock API, clk_enable or
clk_disable, on this device.

Fixes: 0520be0f67 ("clk: prograte clk enable/disable to parent")
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
2022-02-25 01:41:04 -05:00
Sean Anderson
e96e2132f9 clk: Add clk_get_by_name_optional
This adds a helper function for clk_get_by_name in cases where the clock is
optional. Hopefully this helps point driver writers in the right direction.
Also convert some existing users.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Link: https://lore.kernel.org/r/20220115205247.566210-2-seanga2@gmail.com
2022-02-25 01:41:04 -05:00
Sean Anderson
14cacb019c clk: Inline clk_get_*_optional
The optional varients of clk_get_* functions are just simple wrappers.
Reduce code size a bit by inlining them. On platforms where it is not used
(most of them), it will not be compiled in any more. On platforms where
they are used, the inlined branch should not cause any significant growth.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Link: https://lore.kernel.org/r/20211222171114.3091780-3-seanga2@gmail.com
2022-02-24 23:58:13 -05:00
Sean Anderson
011bbfbb30 clk: Rename clk_get_optional_nodev
This normalizes the name of this accessor function to put "_optional" last.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Link: https://lore.kernel.org/r/20211222171114.3091780-2-seanga2@gmail.com
2022-02-24 23:58:13 -05:00
Sean Anderson
6c9239351a clk: cdce9xx: Convert .of_xlate to .request
This xlate function just performs some checking. We can do this in
request() instead and use the default xlate.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Tero Kristo <kristo@kernel.org>
Link: https://lore.kernel.org/r/20211215164718.2778664-1-seanga2@gmail.com
2022-02-24 23:58:13 -05:00
Sean Anderson
e8db644e0d clk: versaclock: Remove xlate function
This function is the same as the default xlate. Remove it.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Adam Ford <aford173@gmail.com>
Link: https://lore.kernel.org/r/20211201201317.2174547-1-seanga2@gmail.com
2022-02-24 23:58:13 -05:00
Sean Anderson
ea5f44325a clk: Remove no-op request and rfree callbacks
These callbacks are optional. Remove ones which do nothing.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Link: https://lore.kernel.org/r/20211201195100.2173465-1-seanga2@gmail.com
2022-02-24 23:58:13 -05:00
Sean Anderson
052bebe54f clk: Rename ICS8N3QV01 to CLK_ICS8N3QV01
This driver was missing a clock prefix. Add one.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Link: https://lore.kernel.org/r/20211215163620.2770126-4-seanga2@gmail.com
2022-02-24 23:58:13 -05:00
Sean Anderson
7d4a785203 clk: Alphabetize Kconfig
This alphabetizes the Kconfig for the clock subsystem. This will help
people find their clocks, and help prevent merge conflicts.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Link: https://lore.kernel.org/r/20211215163620.2770126-3-seanga2@gmail.com
2022-02-24 23:58:13 -05:00
Sean Anderson
d5d7bb70a6 clk: Alphabetize Makefile
This alphabetizes the clock makefile by Kconfig option. This will help
prevent merge conflicts.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Link: https://lore.kernel.org/r/20211215163620.2770126-2-seanga2@gmail.com
2022-02-24 23:58:13 -05:00
Heiko Thiery
e7c5a6383b clk: imx: select [SPL_]CLK_COMPOSITE_CCF for imx8mn
The clock composite is required when using the clock framework. So
select it automatically.

Signed-off-by: Heiko Thiery <heiko.thiery@gmail.com>
2022-02-19 14:46:54 +01:00
David Huang
55bdc200ad clk: clk-k3: Add support for J721S2 SoC
Add support for J721S2 SoC.

Signed-off-by: David Huang <d-huang@ti.com>
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
2022-02-08 09:41:27 -05:00
Heiko Thiery
bfbdf9eabf clk: imx: select [SPL_]CLK_COMPOSITE_CCF for imxrt10{20|50}
The clock composite is required when using the clock framework. So
select it automatically.

Signed-off-by: Heiko Thiery <heiko.thiery@gmail.com>
Reviewed-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
2022-02-05 15:49:01 +01:00
Tom Rini
280db76f15 Pull request doc-2022-04-rc1
Replace @return by Return: in code comments.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEbcT5xx8ppvoGt20zxIHbvCwFGsQFAmHpCv4ACgkQxIHbvCwF
 GsRxNhAAkJXbngwkfdM5O3eZH2zuI0av9GDBLoFoxTWFviwDpCcyzb/XsQgZ8IE5
 Cff9Y6P/SlNPdoE4pvDFqAItvmrvcZ9b/oeAmhVDaMMv1dGEOV9uSQvuQkpJWt/V
 nHtRuCVjSK6qqor3fSTHNMyFcG+gkAG/+8T+KuU8gUDKECQgzJqgixcdKvTjF9jL
 DOIxVKAPRrxlzuJ0u2eovVSZFBB3mik7fnDmOGnbKjj87FvUuOZCX/VWCC5zMGmY
 eOi+C2ONnUleeivWAJrU6AxP28BkCR1q3U1F0LH2LVjolX8WZByYdzlBAOr3RkK0
 0sYxxShdrF+2cYmQP1/wo4z8AySkSBrbr6WTQ58i5vsqFm4sb1FF52cQHQOaFOaV
 Gp/NokHMuzhx7YQr4Ps0TvpROoW6L3Vt2SqA58FoHXzTvWpTi+terdAodL8rH3+1
 yGGNzYW6C79qqMKLclvuLvy/6IWf1UekTo45ocP47vhieRbxyGr8UZ8KMnX6Yx0e
 Y6U34K820fgfTLHM5MOgXMvBXqpskcWnR5hZWdrN9fJyqAZ7AxXQvdDDdIIEMPM9
 MBiFDH8seE62SkTbAEjrSU6RE76WovUISlegmBaB8ihs588au/BQCrsSxmNqT1SV
 SCp8D/GBSjwv+utWlneH6JKAIYxvpsgWeWzr27lA5F3m3j+5gKI=
 =iOT9
 -----END PGP SIGNATURE-----

Merge tag 'doc-2022-04-rc1' of https://source.denx.de/u-boot/custodians/u-boot-efi

Pull request doc-2022-04-rc1

Replace @return by Return: in code comments.
2022-01-20 09:39:45 -05:00
Heinrich Schuchardt
185f812c41 doc: replace @return by Return:
Sphinx expects Return: and not @return to indicate a return value.

find . -name '*.c' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

find . -name '*.h' -exec \
sed -i 's/^\(\s\)\*\(\s*\)@return\(\s\)/\1*\2Return:\3/' {} \;

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-01-19 18:11:34 +01:00
Tom Rini
068415eade Xilinx changes for v2022.04-rc1
gpio:
 - Add modepin driver
 
 net:
 - Save random mac addresses to eth variable
 
 zynqmp gem:
 - Add support for mdio bus DT description
 - Add support for reset and SGMII phy configuration
 - Reduce timeout for MDIO accesses
 
 zynqmp clk:
 - Fix clock handling for gem and usb
 
 phy:
 - Add zynqmp phy/serdes driver
 
 serial:
 - Add one missing compatible string
 
 microblaze:
 - Symbol alignement
 - SPL fixups
 - Code cleanups
 
 zynqmp:
 - Various dt changes, DP pre-reloc, gem resets, gem clocks
 - Switch SOM to shared psu configuration
 - Move dcache handling to firmware driver
 - Workaround gmii2rgmii DT description issue
 - Enable broadcasts again
 - Change firmware enablement logic
 - Small adjustement in firmware driver
 
 versal:
 - Support new mmc@ DT nodes
 - Fix run time variable handling
 - Add missing I2C_PMC ID for power domain
 -----BEGIN PGP SIGNATURE-----
 
 iF0EABECAB0WIQQbPNTMvXmYlBPRwx7KSWXLKUoMIQUCYeg7sQAKCRDKSWXLKUoM
 IVhJAKCAiNx/joEeFBJ0XgThtJzFhCjdMwCfYKY9Ewz4L0n2I56lDgR3UJroct0=
 =HtB+
 -----END PGP SIGNATURE-----

Merge tag 'xilinx-for-v2022.04-rc1' of https://source.denx.de/u-boot/custodians/u-boot-microblaze

Xilinx changes for v2022.04-rc1

gpio:
- Add modepin driver

net:
- Save random mac addresses to eth variable

zynqmp gem:
- Add support for mdio bus DT description
- Add support for reset and SGMII phy configuration
- Reduce timeout for MDIO accesses

zynqmp clk:
- Fix clock handling for gem and usb

phy:
- Add zynqmp phy/serdes driver

serial:
- Add one missing compatible string

microblaze:
- Symbol alignement
- SPL fixups
- Code cleanups

zynqmp:
- Various dt changes, DP pre-reloc, gem resets, gem clocks
- Switch SOM to shared psu configuration
- Move dcache handling to firmware driver
- Workaround gmii2rgmii DT description issue
- Enable broadcasts again
- Change firmware enablement logic
- Small adjustement in firmware driver

versal:
- Support new mmc@ DT nodes
- Fix run time variable handling
- Add missing I2C_PMC ID for power domain
2022-01-19 11:43:44 -05:00
Dylan Hung
e559193968 clk: ast2600: Revise MII interface delay
The clock delay of the RMII/RGMII interface is controlled by SCU340~35C.
These values are obtained by measurement and experiments so we simply
use macro to define them.

Signed-off-by: Dylan Hung <dylan_hung@aspeedtech.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2022-01-18 12:48:17 -05:00
Amit Singh Tomar
05c2ff7dc6 clk: actions: Add SD/MMC clocks
This commit adds SD/MMC clocks, and provides .set/get_rate callbacks
for SD/MMC device present on Actions OWL S700 SoCs.

Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com>
2022-01-18 12:48:17 -05:00
Amit Singh Tomar
234c1672a1 clk: actions: Introduce dummy get/set_rate callbacks
This commit introduces get/set_rate callbacks, these are dummy at
the moment, and can be used to get/set clock for various devices
based on the clk id.

Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
2022-01-18 12:48:17 -05:00
Sean Anderson
46ad7cef64 treewide: invaild -> invalid
Somewhere along the way, someone misspelt "invalid" and it got copied
everywhere. Fix it.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Alexander Dahl <ada@thorsis.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-01-13 07:57:49 -05:00
Tom Rini
fe04d885fb Merge branch 'next'
Signed-off-by: Tom Rini <trini@konsulko.com>
2022-01-10 14:01:57 -05:00
Marek Vasut
75f080df46 Revert "clk: Detect failure to set defaults"
This reverts commit 92f1e9a4b3.
The aforementioned patch causes massive breakage on all platforms which
have 'assigned-clock' DT property in their DT which references any clock
that are not supported by the platform clock driver. That can easily
happen either in SPL, or because the clock driver is reduced. Currently
it seems all iMX8M are affected and fail to boot altogether.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Peng Fan <peng.fan@oss.nxp.com>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2022-01-07 09:30:45 -05:00
Michal Simek
0e789d26b7 clk: zynqmp: Fix gem tx/rx/ref clock handling
gemX_ref clock IDs starts at number 104. Till now it was at gemX_tx
location which wasn't correct.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/d073e159b6316707306092a62bccb876cd89a602.1635506016.git.michal.simek@xilinx.com
2022-01-05 10:22:02 +01:00
Michal Simek
e959ade02c clk: zynqmp: Add support for setting up clock for USB
USB range is not enabled but for setting up frequency it is needed.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/c55c423f48ca8f953a2dfbdcb25068278d8e5ad6.1635506016.git.michal.simek@xilinx.com
2022-01-05 10:22:02 +01:00
Tom Rini
2f8a6db5d8 Finish conversion of CONFIG_SYS_CLK_FREQ to Kconfig
In order to finish moving this symbol to Kconfig for all platforms, we
need to do a few more things.  First, for all platforms that define this
to a function, introduce CONFIG_DYNAMIC_SYS_CLK_FREQ, similar to
CONFIG_DYNAMIC_DDR_CLK_FREQ and populate clock_legacy.h.  This entails
also switching all users from CONFIG_SYS_CLK_FREQ to get_board_sys_clk()
and updating a few preprocessor tests.

With that done, all platforms that define a value here can be converted
to Kconfig, and a fall-back of zero is sufficiently safe to use (and
what is used today in cases where code may or may not have this
available).  Make sure that code which calls this function includes
<clock_legacy.h> to get the prototype.

Signed-off-by: Tom Rini <trini@konsulko.com>
2021-12-27 16:20:18 -05:00
Tom Rini
4afab30cae Prepare v2022.01-rc4
-----BEGIN PGP SIGNATURE-----
 
 iQGzBAABCgAdFiEEGjx/cOCPqxcHgJu/FHw5/5Y0tywFAmHArDwACgkQFHw5/5Y0
 tyzxyAv/SjZjoEwG8nu7ptVZqTsZfm+tVwwWmQEBAA40MXy/KSccDtbUwB5GCO6f
 Uvk+qFFDbCkbGZh5VKbQusMmUoB02Xu9zUoSxKxcXL4WfC6Bg5GV/UWN9s8G3Tm6
 4wcP0l8WFcQjjr89UfXugiZH58psvFu6PBbWVY4rMH9gZ5ds0AkNOF0L+HbdVmMR
 a5HBfrcySRY2kiTQuKF+RVlMW6BtaOqJp/XIyy8w6bH09ykMomj/u7z3JP3y9ZzL
 w3FXqCLlIEnvdDcqfWvfjoJ/gm0WcLulgSVpTFGS0jgJpnbeAURtZcuVgj6aPRUW
 FRon+u0tj3wpFjibs2cpyXWd+gw/bLLFpDXx78AUAPjxG31tEKbnR1j8R8wBZJ0B
 TqWZ3pCne/LPOT90y2KW2z6ty2n/yEn6qEFFT9MN9R4L0N+U0er//sYJC/nn/e6u
 fjvQ9OPLbnAfHVrad3ZeIkePrLOIF6XYwNQpsjt9aE2kU9IvV5sTa8TxZuQgasBU
 A46FgXtC
 =MEG2
 -----END PGP SIGNATURE-----

Merge tag 'v2022.01-rc4' into next

Prepare v2022.01-rc4
2021-12-20 17:12:04 -05:00
Patrick Delaunay
560e1e0050 clk: define LOG_CATEGORY for generic and ccf clocks
Define LOG_CATEGORY to allow filtering with log command
for generic clock and CCF clocks.

This patch also change existing printf, debug and pr_ macro
to log_ or dev_ macro.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
2021-12-15 12:16:16 -05:00
Patrick Delaunay
572c446e98 clk: cosmetic: reorder include files
Reorder include files in the U-Boot expected order:

the common.h header should always be first,
followed by other headers in order,
then headers with directories,
then local files.

It is a preliminary step for next patch.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Sean Anderson <seanga2@gmail.com>
2021-12-15 12:16:16 -05:00
Patrick Delaunay
31dc56fca5 clk: scmi: define LOG_CATEGORY
Define LOG_CATEGORY to allow filtering with log command.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Acked-by: Etienne Carriere <etienne.carriere@linaro.org>
2021-11-23 13:53:03 -05:00
Chia-Wei Wang
af6451187c clk: ast2600: Add RSACLK control for ACRY
Add RSACLK enable for ACRY, the HW RSA/ECC crypto engine
of ASPEED AST2600 SoCs.

Signed-off-by: Chia-Wei Wang <chiawei_wang@aspeedtech.com>
2021-11-17 17:05:00 -05:00
Joel Stanley
4080714f5e clk: ast2600: Add YCLK control for HACE
Add YCLK enable for HACE, the HW hash engine of
ASPEED AST2600 SoCs.

Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Chia-Wei Wang <chiawei_wang@aspeedtech.com>
2021-11-17 17:05:00 -05:00
Patrick Delaunay
f42045b2e7 stm32mp15: replace CONFIG_TFABOOT when it is possible
In some part of STM32MP15 support the CONFIG_TFABOOT can be replaced
by other config: CONFIG_ARMV7_PSCI and CONFIG_ARM_SMCCC.

This patch also simplifies the code in cpu.c, stm32mp1_ram.c and
clk_stml32mp1.c as execution of U-Boot in sysram (boot without SPL and
without TFA) is not supported: the associated initialization code is
present only in SPL.

This cleanup patch is a preliminary step to support SPL load of OP-TEE
in secure world, with SPL in secure world and U-Boot in no-secure world.

Reported-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
2021-11-10 17:07:31 +01:00
Samuel Holland
e0c628d728 clk: sunxi: Extend DM_RESET selection to SPL
The sunxi clock driver exposes a reset controller, so it selects the
reset controller framework. Ensure that dependency is also satisfied
when building the driver for the SPL.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2021-10-25 14:54:06 +01:00
Bin Meng
2edb02ead7 clk: sifive: Fix -Wint-to-pointer-cast warning
dev_read_addr() returns a value of type fdt_addr_t which is a 64-bit
address and pd->va is a pointer. In a 32-bit build, this causes the
following warning seen when building sifive-prci.c:

  warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]

Change to use dev_read_addr_ptr().

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
2021-10-20 10:59:09 +08:00
Samuel Holland
17864406a4 clk: fixed_rate: add dummy disable() function
commit 6bf6d81c11 ("clk: fixed_rate: add dummy enable() function")
implemented .enable, so fixed rate clocks can be used where drivers
might call clk_enable(). Implement the .disable op for the same reason;
some drivers, e.g. USB PHYs, may attempt to disable clocks at runtime.

Signed-off-by: Samuel Holland <samuel@sholland.org>
2021-10-19 11:25:25 -04:00
Elaine Zhang
f2cdd44adb clk: rockchip: rk3568: update clks
fix up ppll init freq.
support tclk_emmc.
add freq (26M) for mmc device.
fix up the sfc clk rate unit error.

Change in V2:
remove change id.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2021-10-15 20:57:31 +08:00
Chris Morgan
ef120e0b30 rockchip: px30: add support for setting cpll clock
Starting with commit 92f1e9a4b3 ("clk: Detect failure to set
defaults") the clk driver for the PX30 for the Odroid Go Advance would
no longer probe correctly, because setting the cpll and gpu clocks are
not supported with the clk_px30 U-Boot driver. This adds support for
setting the cpll clock to the clk_px30 driver. Another patch will
update the U-Boot specific device-tree to remove the GPU clock which is
not used by U-Boot.

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2021-10-15 20:56:09 +08:00
Tom Rini
2aab77f726 Merge https://source.denx.de/u-boot/custodians/u-boot-sunxi
The bulk of it is Samuel's DM_I2C rework, which removes the nasty I2C
deprecation warnings for most 32-bit boards. It also includes some
smaller refactorings that pave the way for more changes, mostly driven
by needing to support the Allwinner RISC-V SoC later on.

Board wise we gain support for the FriendlyARM NanoPi R1S H5 router
board and official Pinetab support.

Build-tested for all 160 sunxi boards, and boot tested on a A64, A20,
H3, H6, and H616 board. USB, SD card, eMMC, and Ethernet all work there
(where applicable).
2021-10-12 11:45:00 -04:00
Dario Binacchi
165e8fe5db clk: ti: add am33xx/am43xx spread spectrum clock support
The patch enables spread spectrum clocking (SSC) for MPU and LCD PLLs.
As reported by the TI spruh73x/spruhl7x RM, SSC is only supported for
the DISP/LCD and MPU PLLs on am33xx/am43xx. SSC is not supported for
DDR, PER, and CORE PLLs.

Calculating the required values and setting the registers accordingly
was taken from the set_mpu_spreadspectrum routine contained in the
arch/arm/mach-omap2/am33xx/clock_am33xx.c file of the u-boot project.

In locked condition, DPLL output clock = CLKINP *[M/N]. In case of
SSC enabled, the reference manual explains that there is a restriction
of range of M values. Since the clk_ti_am3_dpll_round_rate() attempts
to select the minimum possible N, the value of M obtained is not
guaranteed to be within the range required. With the new "ti,min-div"
parameter it is possible to increase N and consequently M to satisfy the
constraint imposed by SSC.

Link: https://lore.kernel.org/r/20210606202253.31649-6-dariobin@libero.it
Signed-off-by: Dario Binacchi <dariobin@libero.it>
2021-10-11 14:27:32 -04:00
Samuel Holland
23c83366f3 clk: sunxi: Add drivers for A31 and H6 PRCM CCUs
Add a driver so the clocks/resets for these peripherals (especially I2C,
RSB, and UART) can be enabled using the normal uclass methods.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2021-10-11 10:46:44 +01:00
Samuel Holland
c61897bf02 clk: sunxi: Add support for I2C gates/resets
Currently, the I2C clocks are configured in the sunxi board code. Add
the I2C clocks to the DM clock driver so they can be enabled from the
DM I2C driver using the normal uclass methods.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2021-10-11 10:46:44 +01:00
Samuel Holland
21d314a661 clk: sunxi: Move header out of arch directory
The CCU header is only used by the DM drivers, not any platform code.
Its current location adds an artificial dependency on CONFIG_ARM and
ARCH_SUNXI, which will be problematic when adding the CCU driver for
a RISC-V sunxi platform.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2021-10-11 10:46:44 +01:00
Sean Anderson
425c08faa8 clk: k210: Try harder to get the best config
In some cases, the best config cannot be used because the VCO would be
out-of-spec. In these cases, we may need to try a worse combination of r/od
in order to find the best representable config. This also adds a few test
cases to catch this and other (possible) unlikely errors.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-10-07 16:08:23 +08:00
Sean Anderson
4970874970 k210: clk: Refactor out_of_spec tests
Everything here sits in a while (true) loop. However, this introduces a
couple of layers of indentation. We can simplify the code by introducing a
single goto instead of using continue/break. This will also make adding
loops in the next patch easier.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
2021-10-07 16:08:22 +08:00
Sean Anderson
54d5d2d56b clk: k210: Fix checking if ulongs are less than 0
The PLL functions take ulong arguments for rate, but still check if that
rate is negative (which is never true). The correct way to handle this is
to use IS_ERR_VALUE (like is already done in k210_clk_set_rate). While
we're at it, we can move the error checking up into the caller of the pll
set/get rate functions.  This also protects our other calculations from
using bogus values for rate.

Fixes: 609bd60b94 ("clk: k210: Rewrite to remove CCF")
Reported-by: Coverity Scan <scan-admin@coverity.com>
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
2021-10-07 16:08:22 +08:00