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path: root/drivers/clk
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2018-05-07SPDX: Convert all of our multiple license tags to Linux Kernel styleTom Rini
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have multiple licenses (in these cases, dual license) declared in the SPDX-License-Identifier tag. In this case we change from listing "LICENSE-A LICENSE-B" or "LICENSE-A or LICENSE-B" or "(LICENSE-A OR LICENSE-B)" to "LICENSE-A OR LICENSE-B" as per the Linux Kernel style document. Note that parenthesis are allowed so when they were used before we continue to use them. Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-02clk: renesas: Drop USB extal from the R8A7792 clock driverMarek Vasut
The R8A7792 does not have the USB extal, so drop it. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2018-04-27Remove unnecessary instances of DECLARE_GLOBAL_DATA_PTRTom Rini
We have a large number of places where while we historically referenced gd in the code we no longer do, as well as cases where the code added that line "just in case" during development and never dropped it. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-04-25rockchip: rv1108: add ofdata_to_platdata() method for driverKever Yang
Parse of data in dedicated api instead of in probe(). The clk_set_rate() may be called before the clk driver is probed, after core support set default clock. This patch fix system abort issue since: f4fcba5 clk: implement clk_set_defaults() Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-sytems.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-sytems.com>
2018-04-25rockchip: rk3128: add ofdata_to_platdata() method for driverKever Yang
Parse of data in dedicated api instead of in probe(). The clk_set_rate() may be called before the clk driver is probed, after core support set default clock. This patch fix system abort issue since: f4fcba5 clk: implement clk_set_defaults() Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-sytems.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-sytems.com>
2018-04-25rockchip: rk3036: add ofdata_to_platdata() method for driverKever Yang
Parse of data in dedicated api instead of in probe(). The clk_set_rate() may be called before the clk driver is probed, after core support set default clock. This patch fix system abort issue since: f4fcba5 clk: implement clk_set_defaults() Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-04-25rockchip: clk: rk3288: add clk_enable function and support USB HOST0/HSICWadim Egorov
The generic ehci-driver (ehci-generic.c) will try to enable the clocks listed in the DTSI. If this fails (e.g. due to clk_enable not being implemented in a driver and -ENOSYS being returned by the clk-uclass), the driver will bail our and print an error message. This implements a minimal clk_enable for the RK3288 and supports the clocks mandatory for the EHCI controllers; as these are enabled by default we simply return success. Signed-off-by: Wadim Egorov <w.egorov@phytec.de> Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-04-24clk: uniphier: disable SPL_CLKMasahiro Yamada
The last clock consumer in SPL, SD/eMMC driver, gave up using the clock driver. The clock driver is only used in U-Boot proper. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-04-21clk: renesas: Minor clean up of the R8A7794 clock driverMarek Vasut
The initconst is not used in U-Boot, drop it. The r8a7794_crit_mod_clks is also not used in U-Boot, so drop it too. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2018-04-21clk: renesas: Minor clean up of the R8A7792 clock driverMarek Vasut
The initconst is not used in U-Boot, drop it. The r8a7792_crit_mod_clks is also not used in U-Boot, so drop it too. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2018-04-18Merge git://git.denx.de/u-boot-uniphierTom Rini
2018-04-18clk: uniphier: add ethernet clock control supportKunihiko Hayashi
Add clock control for ethernet controller on each SoC. Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-04-17clk: fix clk_get_bulk when phandle errorNeil Armstrong
This fixes the Coverity Defect CID 175347 when dev_count_phandle_with_args() returns a negative value. Fixes: a855be87da49 ("clk: Add get/enable/disable/release for a bulk of clocks") Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2018-04-13clk: renesas: Minor clean up of the R8A7790 clock driverMarek Vasut
The initconst is not used in U-Boot, drop it. The r8a7790_crit_mod_clks is also not used in U-Boot, so drop it too. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2018-04-10clk: add sandbox test for bulk APINeil Armstrong
This patch adds the bulk clock API tests for the sandbox test suite. It's very similar to the main test but only uses the _bulk() API and checks if the clocks are correctly enabled/disabled. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-04-10clk: Add get/enable/disable/release for a bulk of clocksNeil Armstrong
This patch adds a "bulk" API to the clock API in order to get/enable/disable /release a group of clocks associated with a device. This bulk API will avoid adding a copy of the same code to manage a group of clocks in drivers. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-04-09clk: zynqmp: Add new compatible string for clock driverMichal Simek
New and old clk drivers are sharing IDs and descriptions. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-04-06clock: stm32mp1: add stgen clock source change supportPatrick Delaunay
The STGEN is the clock source for the Cortex A7 arch timer. So after modification of its frequency, CP15 cntfreq is updated and a new timer init is performed. Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2018-03-28rockchip: clk: rk3188: update dpll settings to make EMAC workAlexander Kochetkov
The patch set dpll settings for 300MHz to values used by binary blob[1]. With new values dpll still generate 300MHz clock, but EMAC work. Probably with new values dpll generate more stable clock. dpll on rk3188 provide clocks to DDR and EMAC. With current dpll settings EMAC doesn't work on radxa rock. EMAC sends packets to network, but it doesn't receive anything. ifconfig shows a lot of framing errors. [1] https://github.com/linux-rockchip/u-boot-rockchip/blob/u-boot-rk3288/ tools/rk_tools/3188_LPDDR2_300MHz_DDR3_300MHz_20130830.bin Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com> Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-03-23arm64: zynqmp: Print the value of pl clocks and wdt clock using clk dumpVipul Kumar
This patch print pl clocks (pl0...pl3) and watchdog clock using clk dump. Signed-off-by: Vipul Kumar <vipulk@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-03-23clk: zynq: Show watchdog clock rate properlyMichal Simek
watchdog clock is also connected to cpu 1X clocksource. Zynq> clk dump ... Before: swdt 4294967290 After: swdt 111111110 Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-03-19clk: stm32mp1: add clock tree initializationPatrick Delaunay
add binding and code for clock tree initialization from device tree Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2018-03-19clk: add driver for stm32mp1Patrick Delaunay
add RCC clock driver for STMP32MP157 - base on driver model = UCLASS_CLK - support ops to enable, disable and get rate of all SOC clock needed by U-Boot Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2018-03-16clk: at91: clk-system: add set/get_rate operationsWenyou Yang
To support set/get the clock rate, add set/get_rate operations. Signed-off-by: Wenyou Yang <wenyou.yang@microchip.com>
2018-03-16clk: at91: add PLLADIV driverWenyou Yang
As said in the SAMA5D2 datasheet, the PLLA clock must be divided by 2 by writing the PLLADIV2 bit in PMC_MCKR, if the ratio between PCK and MCK is 3 (MDIV = 3). This is the purpose of the driver. Signed-off-by: Wenyou Yang <wenyou.yang@microchip.com>
2018-03-16clk: at91: add USB Host clock driverWenyou Yang
Add USB clock driver to configure the input clock and the divider in the PMC_USB register to generate a 48MHz and a 12MHz signal to the USB Host OHCI. Signed-off-by: Wenyou Yang <wenyou.yang@microchip.com>
2018-03-13clk: clk_stm32f: Add DSI clock supportPatrice Chotard
DSI clock is available on STM32F769-disco and STM32F469-disco board. Signed-off-by: Yannick Fertre <yannick.fertre@st.com> Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-03-13clk: clk_stm32f: Add set_rate for LTDC clockPatrice Chotard
Implement set_rate() for LTDC clock only, set_rate for other clocks will be added if needed. This is needed by future LTDC driver improvements. Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-03-13clk: clk_stm32f: Configure SAI PLL to generate LTDC pixel clockPatrice Chotard
Configure SAI PLL configuration to generate LTDC pixel clock on the PLLSAIR output. PLLSAI is enabled only if CONFIG_VIDEO_STM32 flag is set. Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-03-13clk: clk_stm32f: Rework SDMMC stm32_clk_get_rate() partPatrice Chotard
Rework the way SDMMC clock get rate is done in a more generic way : _ Add stm32_clk_get_pllsai_rate() which give the PLLSAI indicated output rate. _ Add stm32_clk_get_pllsai_vco_rate() which give the VCO internal rate. Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-03-13clk: clk_stm32f: No more need of 48Mhz from PLL_SAIPatrice Chotard
Initially, 48Mhz for SDIO clock was generated from SAI pll for STM32F469 and STM32F746 SoCs, but this solution was not suitable for STM32F429 SoCs. A generic solution is to used the PLL_Q output as 48Mhz clock for all STM32F SOCs family. Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-03-13clk: clk_stm32f: Fix RCC_PLLSAICFGR mask definesPatrice Chotard
Use the correct name for RCC_PLLSAICFGR_PLLSAIx_MASK masks. Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-03-13clk: clk_stm32f: Fix stm32_clk_get_rate()Patrice Chotard
Wrong parameter was passed to stm32_clk_pll48clk_rate(). sysclk (PLL_p output value) was passed instead of VCO value. Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-03-13board: stm32: switch to DM STM32 timerPatrice Chotard
Use available DM stm32_timer driver instead of dedicated mach-stm32/stm32fx/timer.c. Remove all defines or files previously used for timer usage in arch/arm/include/asm/arch-stm32fx and in arch/arm/mach-stm32/stm32fx Enable DM STM32_TIMER for STM32F4/F7 and H7. Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-03-13clk: clk_stm32h7: Fix prescaler for Domain 3Patrice Chotard
d1cfgr register was used to calculate the domain 3 prescaler value instead of d3cfgr. Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-03-13clk: clk_stm32h7: Fix stm32_clk_get_rate() for timerPatrice Chotard
For timer clock, an additional prescaler is used which was not taken into account previously. Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-03-13clk: clk_stm32f: Fix stm32_clk_get_rate() for timerPatrice Chotard
For timer clock, an additionnal prescaler is used which was not taken into account previously. Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-03-13rockchip: clk: rk1108: convert to use live dtKever Yang
Use live dt api to get cru base addr. Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-03-13rockchip: clk: rk3328: convert to use live dtKever Yang
Use live dt api to get cru base addr. Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-03-13rockchip: clk: rk3288: convert to use live dtKever Yang
Use live dt api to get cru base addr. Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-03-13rockchip: clk: rk322x: convert to use live dtKever Yang
Use live dt api to get cru base addr. Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-03-13rockchip: clk: rk3188: convert to use live dtKever Yang
Use live dt api to get cru base addr. Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-03-13rockchip: clk: rk3036: convert to use live dtKever Yang
Use live dt api to get cru base addr. Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-03-05clk: renesas: Add R8A77965 M3N entriesMarek Vasut
Add entries for the R8A77965 M3N SoC. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2018-02-24rockchip: clk: rk3399: handle set_rate/get_rate for PLL_PPLLPhilipp Tomsich
The device-tree node for the PMU clk controller assigns to its parent (i.e. PLL_PPLL) even though this clock currently is set up statically by an init-function. In order to avoid unexpected failures, a simple implementation of set_rate (which accepts requests, but notifies the caller of the preset frequency in its return value) and get_rate (which always returns the preset frequency) are added. Note that this is required for the RK808 PMIC to probe successfully on the RK3399-Q7, following the support for the assigned-clocks property. References: commit f4fcba5c5baa ("clk: implement clk_set_defaults()") Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Tested-by: Klaus Goger <klaus.goger@theobroma-systems.com>
2018-02-24rockchip: clk: rk3368: handle clk_enable requests for GMACPhilipp Tomsich
Since commit ba1f96672522 ("net: designware: add clock support"), the designware GMAC driver enables all referenced clocks. While this is a no-op for the RK3368 during boot-up (reset behaviour has all the clock gates open anyway), we still need to handle the clock-ids passed in the enable op of the clock-driver and return a success. This change extends the RK3368 clk driver to: (a) provide a enable op (b) signals success to the caller when the clocks for the GMAC are enabled (no actual action is necessary as the gates are open after reset) References: commit ba1f96672522 ("net: designware: add clock support") Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Tested-by: Klaus Goger <klaus.goger@theobroma-systems.com>
2018-02-24rockchip: clk: rk3399: handle clk_enable requests for GMACPhilipp Tomsich
Since commit ba1f96672522 ("net: designware: add clock support"), the designware GMAC driver enables all referenced clocks. While this is a no-op for the RK3399 during boot-up (reset behaviour has all the clock gates open anyway), we still need to handle the clock-ids passed in the enable op of the clock-driver and return a success. This change extends the enable-op of the rk3399 clk driver to signal success to the caller when the clocks for the GMAC are enabled. References: commit ba1f96672522 ("net: designware: add clock support") Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Tested-by: Klaus Goger <klaus.goger@theobroma-systems.com>
2018-02-16clk: rmobile: Assure SD-IF clock are configured correctlyMarek Vasut
The SD driver calls clk_set_rate() before clk_enable(), yet clk_set_rate() implementation in the clock driver does not set the SD-IF divider. Fix it. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2018-01-29clk: clk_stm32: Add .set_rate callbackPatrice Chotard
Since 'commit f4fcba5c5baa ("clk: implement clk_set_defaults()")' STM32F4 family board can't boot. Above patch calls clk_set_rate() for all nodes with assigned-clock-rates property. Clock driver for STM32F family doesn't implement .set_rate callback which make clk_set_defaults() exit on error and prevent board to boot. Fixes: f4fcba5c5baa ("clk: implement clk_set_defaults()") Signed-off-by: Patrice Chotard <patrice.chotard@st.com>