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path: root/drivers/clk/altera
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2025-09-30drivers: clk: agilex: Use FIELD_GET during EMAC clock selectionNaresh Kumar Ravulapalli
FIELD_GET() macro is used during EMAC clock source selection for better code readability and maintainability. Signed-off-by: Naresh Kumar Ravulapalli <nareshkumar.ravulapalli@altera.com> Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>
2025-09-30drivers: clk: agilex: Fix EMAC clock source selectionNaresh Kumar Ravulapalli
Fix the incorrect bit masking and bit shift used to compute EMAC control which in turn is used to select EMAC clock from EMAC source A or B. Signed-off-by: Naresh Kumar Ravulapalli <nareshkumar.ravulapalli@altera.com> Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>
2025-09-30drivers: clk: agilex: Support for enable/disable APIAlif Zakuan Yuslaimi
Update Agilex clock driver to support enabling or disabling the peripheral clocks via clock driver model APIs. The caller will pass the clock ID to this driver and the driver will then proceed to manipulate the desired bit in the Agilex clock manager peripheral PLL register based on the given clock ID. Signed-off-by: Alif Zakuan Yuslaimi <alif.zakuan.yuslaimi@altera.com> Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>
2025-08-08clk: altera: Add clock support for Agilex7 M-seriesTingting Meng
Agilex7 M-series reuse the clock driver from Agilex. Signed-off-by: Tingting Meng <tingting.meng@altera.com> Signed-off-by: Alif Zakuan Yuslaimi <alif.zakuan.yuslaimi@altera.com> Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>
2025-08-08drivers: clk: agilex: Replace status polling with wait_for_bit_le32()Alif Zakuan Yuslaimi
Replace cm_wait_for_fsm() function with wait_for_bit_le32() function which supports accurate timeout. Signed-off-by: Alif Zakuan Yuslaimi <alif.zakuan.yuslaimi@altera.com> Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>
2025-08-08drivers: clk: agilex: Use real clock source frequencyAlif Zakuan Yuslaimi
Update the ARMv8 generic timer frequency register (cntfrq_el0) with the actual hardware timer frequency (COUNTER_FREQUENCY_REAL). The generic timer frequency was set to 0x200000000 during boot clk which needs to be set to 0x400000000 when transition from boot clk to PLL clk. This will ensure that subsequent timer operations are based on the correct frequency, ensuring accurate timekeeping. Signed-off-by: Alif Zakuan Yuslaimi <alif.zakuan.yuslaimi@altera.com> Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>
2025-07-30clk: n5x: Fix misplaced parenAndrew Goodbody
Smatch reported an issue about the precedence of shift being higher than mask in clk_get_emac_clk_hz. This turned out to be a misplaced paren in one of the calculations. Fix this by placing the paren in the same place as in the other similar calculations in the same function. Signed-off-by: Andrew Goodbody <andrew.goodbody@linaro.org>
2025-02-25drivers: clk: agilex5: Set PLL to asynchronous modeAlif Zakuan Yuslaimi
PLL frequency would overshoot from the original target in synchronous mode during low VCC voltage condition. To resolve this issue, PLL is set to run on asynchronous mode instead of enabling synchronous mode in the clock driver. Signed-off-by: Muhammad Hazim Izzat Zamri <muhammad.hazim.izzat.zamri@altera.com> Signed-off-by: Alif Zakuan Yuslaimi <alif.zakuan.yuslaimi@altera.com> Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>
2025-02-25drivers: clk: agilex5: Replace status polling with wait_for_bit_le32()Alif Zakuan Yuslaimi
Replace cm_wait_for_fsm() function with wait_for_bit_le32() function which supports accurate timeout. Signed-off-by: Alif Zakuan Yuslaimi <alif.zakuan.yuslaimi@altera.com> Signed-off-by: Tien Fong Chee <tien.fong.chee@altera.com> Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>
2025-02-25drivers: clk: agilex5: Configure intosc as boot_clk sourceAlif Zakuan Yuslaimi
Some customers prefer to minimize the use of external oscillators, especially when using the FPGA first configuration mode. By enabling the configuration of the HPS internal oscillator as the boot_clk source instead of the default external oscillator, (HPS_OSC_CLK) in non-secure boot scenarios, this allows them to eliminate the need for an additional oscillator device and a dedicated HPS pin, simplifying board layout and routing. Signed-off-by: Tingting Meng <tingting.meng@altera.com> Signed-off-by: Alif Zakuan Yuslaimi <alif.zakuan.yuslaimi@altera.com> Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>
2024-10-11drivers: Use CONFIG_XPL_BUILD instead of CONFIG_SPL_BUILDSimon Glass
Use the new symbol to refer to any 'SPL' build, including TPL and VPL Signed-off-by: Simon Glass <sjg@chromium.org>
2024-05-20Restore patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"Tom Rini
As part of bringing the master branch back in to next, we need to allow for all of these changes to exist here. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
2024-05-19Revert "Merge patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet""Tom Rini
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
2024-05-07clk: Remove <common.h> and add needed includesTom Rini
Remove <common.h> from this driver directory and when needed add missing include files directly. Signed-off-by: Tom Rini <trini@konsulko.com>
2024-05-06global: Make <asm/global_data.h> include <asm/u-boot.h>Tom Rini
This follows the example of RISC-V where <asm/global_data.h> includes <asm/u-boot.h> directly as "gd" includes a reference to bd_info already and so the first must include the second anyhow. We then remove <asm/u-boot.h> from all of the places which include references to "gd" an so have <asm/global_data.h> already. Signed-off-by: Tom Rini <trini@konsulko.com>
2024-03-18arch: arm: Agilex5 enablementJit Loon Lim
This patch is to enable Agilex5 platform for Intel product. Changes, modification and new files are created for board, dts, configs and makefile to create the base for Agilex5. Signed-off-by: Jit Loon Lim <jit.loon.lim@intel.com> Reviewed-by: Tien Fong Chee <tien.fong.chee@intel.com>
2024-01-22clk: altera: n5x: Fix MEMCLKMGR_EXTCNTRST_C0CNTRST to bit(0)Dinesh Maniyam
MEMCLKMGR_EXTCNTRST_C0CNTRST register defined as BIT[0] in documentation but it is wrongly defined as BIT[7] in u-boot code. This register is used to hold associated pingpong counter in reset while PLL and 5:1 mux configuration is changed. Signed-off-by: Dinesh Maniyam <dinesh.maniyam@intel.com> Reviewed-by: Tien Fong Chee <tien.fong.chee@intel.com>
2022-07-01drivers: clk: Update license for Intel N5X deviceTeik Heng Chong
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>
2021-08-25drivers: clk: Add memory clock driver for Intel N5X deviceSiew Chin Lim
Add memory clock manager driver for N5X. Provides memory clock initialization and enable functions. Signed-off-by: Siew Chin Lim <elly.siew.chin.lim@intel.com>
2021-08-25drivers: clk: Add clock driver for Intel N5X deviceSiew Chin Lim
Add clock manager driver for N5X. Provides clock initialization and get_rate functions. Signed-off-by: Siew Chin Lim <elly.siew.chin.lim@intel.com>
2021-02-02common: Drop asm/global_data.h from common headerSimon Glass
Move this out of the common header and include it only where needed. In a number of cases this requires adding "struct udevice;" to avoid adding another large header or in other cases replacing / adding missing header files that had been pulled in, very indirectly. Finally, we have a few cases where we did not need to include <asm/global_data.h> at all, so remove that include. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com>
2020-12-13dm: treewide: Rename ..._platdata variables to just ..._platSimon Glass
Try to maintain some consistency between these variables by using _plat as a suffix for them. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: treewide: Rename ofdata_to_platdata() to of_to_plat()Simon Glass
This name is far too long. Rename it to remove the 'data' bits. This makes it consistent with the platdata->plat rename. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: treewide: Rename dev_get_platdata() to dev_get_plat()Simon Glass
Rename this to be consistent with the change from 'platdata'. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: treewide: Rename 'platdata' variables to just 'plat'Simon Glass
We use 'priv' for private data but often use 'platdata' for platform data. We can't really use 'pdata' since that is ambiguous (it could mean private or platform data). Rename some of the latter variables to end with 'plat' for consistency. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: treewide: Rename auto_alloc_size members to be shorterSimon Glass
This construct is quite long-winded. In earlier days it made some sense since auto-allocation was a strange concept. But with driver model now used pretty universally, we can shorten this to 'auto'. This reduces verbosity and makes it easier to read. Coincidentally it also ensures that every declaration is on one line, thus making dtoc's job easier. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-10-09clk: agilex: Additional membus writes for HPS PLLChee Hong Ang
Add additional membus writes to configure main and peripheral PLL for Agilex's clock manager. Signed-off-by: Chee Hong Ang <chee.hong.ang@intel.com> Reviewed-by: Ley Foon Tan <ley.foon.tan@intel.com>
2020-10-09clk: agilex: Handle clock configuration differently in SPL and U-Boot properChee Hong Ang
Since warm reset may optionally set the CLock Manager to'boot mode', the clock driver should always force the Agilex's Clock Manager to 'boot mode' before the clock driver start configuring the Clock Manager in SPL. In SSBL, clock driver will skip the Clock Manager configuration if it's already being setup by SPL (Clock Manager NOT in 'boot mode') to prevent any inaccurate clocking issues happened on HPS peripherals such as UART, MAC and etc. Signed-off-by: Chee Hong Ang <chee.hong.ang@intel.com>
2020-10-09clk: agilex: Add clock enable supportLey Foon Tan
Some drivers probing failed if clock enable function is not supported in clock driver. So, add clock enable function to clock driver to solve it. Return 0 (success) for *.enable function because all clocks are enabled by default in clock driver probe. Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com> Signed-off-by: Chee Hong Ang <chee.hong.ang@intel.com>
2020-10-09clk: agilex: Add NAND clock supportLey Foon Tan
Add get nand_clk and nand_x clock support. Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com> Signed-off-by: Chee Hong Ang <chee.hong.ang@intel.com>
2020-07-25treewide: convert devfdt_get_addr() to dev_read_addr()Masahiro Yamada
When you enable CONFIG_OF_LIVE, you will end up with a lot of conversions. To generate this commit, I used coccinelle excluding drivers/core/, include/dm/, and test/ The semantic patch that makes this change is as follows: <smpl> @@ expression dev; @@ -devfdt_get_addr(dev) +dev_read_addr(dev) </smpl> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2020-07-24Revert "Merge tag 'dm-pull-20jul20' of git://git.denx.de/u-boot-dm"Tom Rini
This reverts commit 5d3a21df6694ebd66d5c34c9d62a26edc7456fc7, reversing changes made to 56d37f1c564107e27d873181d838571b7d7860e7. Unfortunately this is causing CI failures: https://travis-ci.org/github/trini/u-boot/jobs/711313649 Signed-off-by: Tom Rini <trini@konsulko.com>
2020-07-20treewide: convert devfdt_get_addr() to dev_read_addr()Masahiro Yamada
When you enable CONFIG_OF_LIVE, you will end up with a lot of conversions. To generate this commit, I used coccinelle excluding drivers/core/, include/dm/, and test/ The semantic patch that makes this change is as follows: <smpl> @@ expression dev; @@ -devfdt_get_addr(dev) +dev_read_addr(dev) </smpl> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2020-05-18common: Drop linux/bitops.h from common headerSimon Glass
Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18common: Drop log.h from common headerSimon Glass
Move this header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-04-16dm: core: remove the duplicated function dm_ofnode_pre_relocPatrick Delaunay
The content dm_ofnode_pre_reloc() is identical with ofnode_pre_reloc() defined in drivers/core/ofnode.c and used only three times: - drivers/core/lists.c:lists_bind_fdt() - drivers/clk/at91/pmc.c::at91_clk_sub_device_bind - drivers/clk/altera/clk-arria10.c::socfpga_a10_clk_bind So this function dm_ofnode_pre_reloc can be removed and replaced by these function calls by ofnode_pre_reloc(). Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Acked-by: Simon Glass <sjg@chromium.org>
2020-04-05clk: socfpga: Read the clock parent's register base in probe functionChee Hong Ang
This commit (82de42fa14682d408da935adfb0f935354c5008f) calls child's ofdata_to_platdata() method before the parent is probed in dm core. This has caused the driver no longer able to get the correct parent clock's register base in the ofdata_to_platdata() method because the parent clocks will only be probed after the child's ofdata_to_platdata(). To resolve this, the clock parent's register base will only be retrieved by the child in probe() method instead of ofdata_to_platdata(). Signed-off-by: Chee Hong Ang <chee.hong.ang@intel.com> Reviewed-by: Ley Foon Tan <ley.foon.tan@intel.com>
2020-02-05dm: core: Create a new header file for 'compat' featuresSimon Glass
At present dm/device.h includes the linux-compatible features. This requires including linux/compat.h which in turn includes a lot of headers. One of these is malloc.h which we thus end up including in every file in U-Boot. Apart from the inefficiency of this, it is problematic for sandbox which needs to use the system malloc() in some files. Move the compatibility features into a separate header file. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05dm: core: Require users of devres to include the headerSimon Glass
At present devres.h is included in all files that include dm.h but few make use of it. Also this pulls in linux/compat which adds several more headers. Drop the automatic inclusion and require files to include devres themselves. This provides a good indication of which files use devres. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Anatolij Gustschin <agust@denx.de>
2020-01-07clk: agilex: Add clock driver for AgilexLey Foon Tan
Add clock manager driver for Agilex. Provides clock initialization and get_rate functions. agilex-clock.h is from Linux commit ID cd2e1ad12247. Signed-off-by: Chee Hong Ang <chee.hong.ang@intel.com> Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com> Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
2019-04-11clk: socfpga: replace dm_fdt_pre_reloc by dm_ofnode_pre_relocPatrick Delaunay
Prepare to remove dm_fdt_pre_reloc function. Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-11-14clk: Remove DM_FLAG_PRE_RELOC flag in various driversBin Meng
When a driver declares DM_FLAG_PRE_RELOC flag, it wishes to be bound before relocation. However due to a bug in the DM core, the flag only takes effect when devices are statically declared via U_BOOT_DEVICE(). This bug has been fixed recently by commit "dm: core: Respect drivers with the DM_FLAG_PRE_RELOC flag in lists_bind_fdt()", but with the fix, it has a side effect that all existing drivers that declared DM_FLAG_PRE_RELOC flag will be bound before relocation now. This may expose potential boot failure on some boards due to insufficient memory during the pre-relocation stage. To mitigate this potential impact, the following changes are implemented: - Remove DM_FLAG_PRE_RELOC flag in the driver, if the driver only supports configuration from device tree (OF_CONTROL) - Keep DM_FLAG_PRE_RELOC flag in the driver only if the device is statically declared via U_BOOT_DEVICE() - Surround DM_FLAG_PRE_RELOC flag with OF_CONTROL check, for drivers that support both statically declared devices and configuration from device tree Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-10-28drivers: cosmetic: Convert SPDX license tags to Linux Kernel stylePatrick Delaunay
Complete in the drivers directory the work started with commit 83d290c56fab ("SPDX: Convert all of our single license tags to Linux Kernel style"). Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2018-08-13clk: socfpga: Add initial Arria10 clock driverMarek Vasut
Add clock driver for the Arria10, which allows reading the clock frequency from all the clock described in the DT. The driver also allows enabling and disabling the clock. Reconfiguring frequency is not supported thus far. Since the DT bindings for the SoCFPGA clock are massively misdesigned and the handoff DT adds additional incorrectly described entries to the DT, the driver contains workarounds which attempt to rectify all of those problems. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Chin Liang See <chin.liang.see@intel.com> Cc: Dinh Nguyen <dinguyen@kernel.org> Cc: Ley Foon Tan <ley.foon.tan@intel.com>