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2023-10-23clk: sifive: Allow building the driver as a moduleSamuel Holland2-6/+6
This can reduce the kernel image size in multiplatform configurations. Signed-off-by: Samuel Holland <samuel.holland@sifive.com> Link: https://lore.kernel.org/r/20230725004248.381868-2-samuel.holland@sifive.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2023-07-19clk: Explicitly include correct DT includesRob Herring1-1/+1
The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Acked-by: Dinh Nguyen <dinguyen@kernel.org> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> # samsung Acked-by: Heiko Stuebner <heiko@sntech.de> #rockchip Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> # versaclock5 Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230718143156.1066339-1-robh@kernel.org Acked-by: Abel Vesa <abel.vesa@linaro.org> #imx Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2023-06-14clk: sifive: Use devm_platform_ioremap_resource()Yang Li1-3/+1
Convert platform_get_resource(),devm_ioremap_resource() to a single call to devm_platform_ioremap_resource(), as this is exactly what this function does. Signed-off-by: Yang Li <yang.lee@linux.alibaba.com> Link: https://lore.kernel.org/r/20230428070005.41192-1-yang.lee@linux.alibaba.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2023-04-10clk: sifive: make SiFive clk drivers depend on ARCH_ symbolsConor Dooley1-3/+3
As part of converting RISC-V SOC_FOO symbols to ARCH_FOO to match the use of such symbols on other architectures, convert the SiFive clk drivers to use the new symbol. Signed-off-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20230406-groovy-trustable-15853ac0a130@spud Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2022-10-17clk: sifive: select by default if SOC_SIFIVEConor Dooley1-1/+3
With the aim of dropping direct selects of drivers from Kconfig.socs, default the SiFive clock drivers to the value of SOC_SIFIVE. Signed-off-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20221005171348.167476-2-conor@kernel.org Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2022-03-15clk: sifive: Move all stuff into SoCs header files from C filesZong Li6-235/+214
Improve PRCI driver to reduce the complexity, we remove the SoCs C files by putting all stuff in each SoCs header files, and include these SoCs-specific header files in core of PRCI. It can also avoid the W=1 kernel build warnings about variable defined but not used [-Wunused-const-variable=], like commit 487dc7bb6a0c ("clk: sifive: fu540-prci: Declare static const variable 'prci_clk_fu540' where it's used") does. Signed-off-by: Zong Li <zong.li@sifive.com> Suggested-by: Lee Jones <lee.jones@linaro.org> Reviewed-by: Lee Jones <lee.jones@linaro.org> Acked-by: Palmer Dabbelt <palmer@rivosinc.com> Link: https://lore.kernel.org/r/a3c7ec5c46c1d8be455d1c347db4855bb56cec53.1646388139.git.zong.li@sifive.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2022-03-15clk: sifive: Add SoCs prefix in each SoCs-dependent dataZong Li2-50/+35
This patch is prerequisite for moving SoCs C files into SoCs header files. Currently, fu540-prci.c and fu740-prci.c use same names for several macro definitions and variables, it would cause redefinition error when we trying to include all stuff in sifive-prci.c. In this patch, we also remove the temporary macro definitions which are added by previous patch. Signed-off-by: Zong Li <zong.li@sifive.com> Acked-by: Palmer Dabbelt <palmer@rivosinc.com> Link: https://lore.kernel.org/r/7728ef662c59449ce954b1b62c6ad5241e07adfb.1646388139.git.zong.li@sifive.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2022-03-15clk: sifive: duplicate the macro definitions for the time beingZong Li2-2/+15
This is a temporary patch in whole patch set. We are going to change the macro name in dt-binding, in order to avoid breaking the driver build and git bisect, add these macro definitions for the time being, and we will remove them later. Signed-off-by: Zong Li <zong.li@sifive.com> Link: https://lore.kernel.org/r/8cfd57f01cfb59adb716eb13ca0c8250c246dcb2.1646388139.git.zong.li@sifive.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2021-06-01clk: sifive: Fix kernel-docYang Li1-1/+1
Fix function name in sifive-prci.c kernel-doc comment to remove a warning. drivers/clk/sifive/sifive-prci.c:573: warning: expecting prototype for sifive_prci_init(). Prototype was for sifive_prci_probe() instead Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Yang Li <yang.lee@linux.alibaba.com> Link: https://lore.kernel.org/r/1621851730-32287-1-git-send-email-yang.lee@linux.alibaba.com Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com> Acked-by: Palmer Dabbelt <palmerdabbelt@google.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2021-05-04clk: sifive: Use reset-simple in prci driver for PCIe driverGreentime Hu3-0/+19
We use reset-simple in this patch so that pcie driver can use devm_reset_control_get() to get this reset data structure and use reset_control_deassert() to deassert pcie_power_up_rst_n. Link: https://lore.kernel.org/r/20210504105940.100004-3-greentime.hu@sifive.com Signed-off-by: Greentime Hu <greentime.hu@sifive.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Stephen Boyd <sboyd@kernel.org>
2021-05-04clk: sifive: Add pcie_aux clock in prci driver for PCIe driverGreentime Hu4-1/+62
We add pcie_aux clock in this patch so that pcie driver can use clk_prepare_enable() and clk_disable_unprepare() to enable and disable pcie_aux clock. Link: https://lore.kernel.org/r/20210504105940.100004-2-greentime.hu@sifive.com Signed-off-by: Greentime Hu <greentime.hu@sifive.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Stephen Boyd <sboyd@kernel.org>
2021-02-11clk: sifive: fu540-prci: Declare static const variable 'prci_clk_fu540' where it's usedLee Jones2-5/+5
Fixes the following W=1 kernel build warning(s): drivers/clk/sifive/fu540-prci.h:16:35: warning: ‘prci_clk_fu540’ defined but not used [-Wunused-const-variable=] drivers/clk/sifive/fu540-prci.h:16:35: warning: ‘prci_clk_fu540’ defined but not used [-Wunused-const-variable=] Cc: Michael Turquette <mturquette@baylibre.com> Cc: Stephen Boyd <sboyd@kernel.org> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Pragnesh Patel <Pragnesh.patel@sifive.com> Cc: Zong Li <zong.li@sifive.com> Cc: linux-clk@vger.kernel.org Cc: linux-riscv@lists.infradead.org Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20210120093040.1719407-7-lee.jones@linaro.org Acked-by: Palmer Dabbelt <palmerdabbelt@google.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-12-16clk: sifive: Add clock enable and disable opsPragnesh Patel4-9/+93
Add new functions "sifive_prci_clock_enable(), sifive_prci_clock_disable() and sifive_clk_is_enabled()" to enable or disable the PRCI clock Signed-off-by: Pragnesh Patel <pragnesh.patel@sifive.com> Tested-by: Zong Li <zong.li@sifive.com> Link: https://lore.kernel.org/r/20201209094916.17383-6-zong.li@sifive.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-12-16clk: sifive: Fix the wrong bit field shiftZong Li1-2/+2
The clk enable bit should be 31 instead of 24. Signed-off-by: Zong Li <zong.li@sifive.com> Reported-by: Pragnesh Patel <pragnesh.patel@sifive.com> Link: https://lore.kernel.org/r/20201209094916.17383-5-zong.li@sifive.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-12-16clk: sifive: Add a driver for the SiFive FU740 PRCI IP blockZong Li6-3/+346
Add driver code for the SiFive FU740 PRCI IP block. This IP block handles reset and clock control for the SiFive FU740 device and implements SoC-level clock tree controls and dividers. The link of unmatched as follow, and the U740-C000 manual would be present in the same page as soon. https://www.sifive.com/boards/hifive-unmatched This driver contains bug fixes and contributions from Henry Styles <hes@sifive.com> Erik Danie <erik.danie@sifive.com> Pragnesh Patel <pragnesh.patel@sifive.com> Signed-off-by: Zong Li <zong.li@sifive.com> Reviewed-by: Pragnesh Patel <Pragnesh.patel@sifive.com> Acked-by: Palmer Dabbelt <palmerdabbelt@google.com> Cc: Henry Styles <hes@sifive.com> Cc: Erik Danie <erik.danie@sifive.com> Cc: Pragnesh Patel <pragnesh.patel@sifive.com> Link: https://lore.kernel.org/r/20201209094916.17383-4-zong.li@sifive.com [sboyd@kernel.org: Include header to silence sparse] Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-12-16clk: sifive: Use common name for prci configurationZong Li2-4/+4
Use generic name CLK_SIFIVE_PRCI instead of CLK_SIFIVE_FU540_PRCI. This patch is prepared for fu740 support. Signed-off-by: Zong Li <zong.li@sifive.com> Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com> Acked-by: Palmer Dabbelt <palmerdabbelt@google.com> Reviewed-by: Pragnesh Patel <Pragnesh.patel@sifive.com> Link: https://lore.kernel.org/r/20201209094916.17383-3-zong.li@sifive.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-12-16clk: sifive: Extract prci core to common baseZong Li5-571/+641
Extract common core of prci driver to an independent file, it could allow other chips to reuse it. Separate SoCs-dependent code 'fu540' from prci core, then we can easily add 'fu740' later. Almost these changes are code movement. The different is adding the private data for each SoC use, so it needs to get match data in probe callback function, then use the data for initialization. Signed-off-by: Zong Li <zong.li@sifive.com> Reviewed-by: Pragnesh Patel <Pragnesh.patel@sifive.com> Acked-by: Palmer Dabbelt <palmerdabbelt@google.com> Link: https://lore.kernel.org/r/20201209094916.17383-2-zong.li@sifive.com [sboyd@kernel.org: Include header to silence sparse] Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-06-25clk: sifive: allocate sufficient memory for struct __prci_dataVincent Chen1-1/+4
The (struct __prci_data).hw_clks.hws is an array with dynamic elements. Using struct_size(pd, hw_clks.hws, ARRAY_SIZE(__prci_init_clocks)) instead of sizeof(*pd) to get the correct memory size of struct __prci_data for sifive/fu540-prci. After applying this modifications, the kernel runs smoothly with CONFIG_SLAB_FREELIST_RANDOM enabled on the HiFive unleashed board. Fixes: 30b8e27e3b58 ("clk: sifive: add a driver for the SiFive FU540 PRCI IP block") Signed-off-by: Vincent Chen <vincent.chen@sifive.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2019-05-30Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linuxLinus Torvalds1-0/+1
Pull clk driver fixes from Stephen Boyd: - Don't expose the SiFive clk driver on non-RISCV architectures - Fix some bits describing clks in the imx8mm driver - Always call clk domain code in the TI driver so non-legacy platforms work * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: ti: clkctrl: Fix clkdm_clk handling clk: imx: imx8mm: fix int pll clk gate clk: sifive: restrict Kconfig scope for the FU540 PRCI driver
2019-05-21clk: sifive: restrict Kconfig scope for the FU540 PRCI driverPaul Walmsley1-0/+1
Restrict Kconfig scope for SiFive clock and reset IP block drivers such that they won't appear on most configurations that are unlikely to support them. This is based on a suggestion from Pavel Machek <pavel@ucw.cz>. Ideally this should be dependent on CONFIG_ARCH_SIFIVE, but since that Kconfig directive does not yet exist, add dependencies on RISCV or COMPILE_TEST for now. Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com> Signed-off-by: Paul Walmsley <paul@pwsan.com> Reported-by: Pavel Machek <pavel@ucw.cz> Cc: Michael Turquette <mturquette@baylibre.com> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-05-21treewide: Add SPDX license identifier - Makefile/KconfigThomas Gleixner1-0/+1
Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-15clk: Remove io.h from clk-provider.hStephen Boyd1-0/+1
Now that we've gotten rid of clk_readl() we can remove io.h from the clk-provider header and push out the io.h include to any code that isn't already including the io.h header but using things like readl/writel, etc. Found with this grep: git grep -l clk-provider.h | grep '.c$' | xargs git grep -L 'linux/io.h' | \ xargs git grep -l \ -e '\<__iowrite32_copy\>' --or \ -e '\<__ioread32_copy\>' --or \ -e '\<__iowrite64_copy\>' --or \ -e '\<ioremap_page_range\>' --or \ -e '\<ioremap_huge_init\>' --or \ -e '\<arch_ioremap_pud_supported\>' --or \ -e '\<arch_ioremap_pmd_supported\>' --or \ -e '\<devm_ioport_map\>' --or \ -e '\<devm_ioport_unmap\>' --or \ -e '\<IOMEM_ERR_PTR\>' --or \ -e '\<devm_ioremap\>' --or \ -e '\<devm_ioremap_nocache\>' --or \ -e '\<devm_ioremap_wc\>' --or \ -e '\<devm_iounmap\>' --or \ -e '\<devm_ioremap_release\>' --or \ -e '\<devm_memremap\>' --or \ -e '\<devm_memunmap\>' --or \ -e '\<__devm_memremap_pages\>' --or \ -e '\<pci_remap_cfgspace\>' --or \ -e '\<arch_has_dev_port\>' --or \ -e '\<arch_phys_wc_add\>' --or \ -e '\<arch_phys_wc_del\>' --or \ -e '\<memremap\>' --or \ -e '\<memunmap\>' --or \ -e '\<arch_io_reserve_memtype_wc\>' --or \ -e '\<arch_io_free_memtype_wc\>' --or \ -e '\<__io_aw\>' --or \ -e '\<__io_pbw\>' --or \ -e '\<__io_paw\>' --or \ -e '\<__io_pbr\>' --or \ -e '\<__io_par\>' --or \ -e '\<__raw_readb\>' --or \ -e '\<__raw_readw\>' --or \ -e '\<__raw_readl\>' --or \ -e '\<__raw_readq\>' --or \ -e '\<__raw_writeb\>' --or \ -e '\<__raw_writew\>' --or \ -e '\<__raw_writel\>' --or \ -e '\<__raw_writeq\>' --or \ -e '\<readb\>' --or \ -e '\<readw\>' --or \ -e '\<readl\>' --or \ -e '\<readq\>' --or \ -e '\<writeb\>' --or \ -e '\<writew\>' --or \ -e '\<writel\>' --or \ -e '\<writeq\>' --or \ -e '\<readb_relaxed\>' --or \ -e '\<readw_relaxed\>' --or \ -e '\<readl_relaxed\>' --or \ -e '\<readq_relaxed\>' --or \ -e '\<writeb_relaxed\>' --or \ -e '\<writew_relaxed\>' --or \ -e '\<writel_relaxed\>' --or \ -e '\<writeq_relaxed\>' --or \ -e '\<readsb\>' --or \ -e '\<readsw\>' --or \ -e '\<readsl\>' --or \ -e '\<readsq\>' --or \ -e '\<writesb\>' --or \ -e '\<writesw\>' --or \ -e '\<writesl\>' --or \ -e '\<writesq\>' --or \ -e '\<inb\>' --or \ -e '\<inw\>' --or \ -e '\<inl\>' --or \ -e '\<outb\>' --or \ -e '\<outw\>' --or \ -e '\<outl\>' --or \ -e '\<inb_p\>' --or \ -e '\<inw_p\>' --or \ -e '\<inl_p\>' --or \ -e '\<outb_p\>' --or \ -e '\<outw_p\>' --or \ -e '\<outl_p\>' --or \ -e '\<insb\>' --or \ -e '\<insw\>' --or \ -e '\<insl\>' --or \ -e '\<outsb\>' --or \ -e '\<outsw\>' --or \ -e '\<outsl\>' --or \ -e '\<insb_p\>' --or \ -e '\<insw_p\>' --or \ -e '\<insl_p\>' --or \ -e '\<outsb_p\>' --or \ -e '\<outsw_p\>' --or \ -e '\<outsl_p\>' --or \ -e '\<ioread8\>' --or \ -e '\<ioread16\>' --or \ -e '\<ioread32\>' --or \ -e '\<ioread64\>' --or \ -e '\<iowrite8\>' --or \ -e '\<iowrite16\>' --or \ -e '\<iowrite32\>' --or \ -e '\<iowrite64\>' --or \ -e '\<ioread16be\>' --or \ -e '\<ioread32be\>' --or \ -e '\<ioread64be\>' --or \ -e '\<iowrite16be\>' --or \ -e '\<iowrite32be\>' --or \ -e '\<iowrite64be\>' --or \ -e '\<ioread8_rep\>' --or \ -e '\<ioread16_rep\>' --or \ -e '\<ioread32_rep\>' --or \ -e '\<ioread64_rep\>' --or \ -e '\<iowrite8_rep\>' --or \ -e '\<iowrite16_rep\>' --or \ -e '\<iowrite32_rep\>' --or \ -e '\<iowrite64_rep\>' --or \ -e '\<__io_virt\>' --or \ -e '\<pci_iounmap\>' --or \ -e '\<virt_to_phys\>' --or \ -e '\<phys_to_virt\>' --or \ -e '\<ioremap_uc\>' --or \ -e '\<ioremap\>' --or \ -e '\<__ioremap\>' --or \ -e '\<iounmap\>' --or \ -e '\<ioremap\>' --or \ -e '\<ioremap_nocache\>' --or \ -e '\<ioremap_uc\>' --or \ -e '\<ioremap_wc\>' --or \ -e '\<ioremap_wc\>' --or \ -e '\<ioremap_wt\>' --or \ -e '\<ioport_map\>' --or \ -e '\<ioport_unmap\>' --or \ -e '\<ioport_map\>' --or \ -e '\<ioport_unmap\>' --or \ -e '\<xlate_dev_kmem_ptr\>' --or \ -e '\<xlate_dev_mem_ptr\>' --or \ -e '\<unxlate_dev_mem_ptr\>' --or \ -e '\<virt_to_bus\>' --or \ -e '\<bus_to_virt\>' --or \ -e '\<memset_io\>' --or \ -e '\<memcpy_fromio\>' --or \ -e '\<memcpy_toio\>' I also reordered a couple includes when they weren't alphabetical and removed clk.h from kona, replacing it with clk-provider.h because that driver doesn't use clk consumer APIs. Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Chen-Yu Tsai <wens@csie.org> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Acked-by: Tero Kristo <t-kristo@ti.com> Acked-by: Sekhar Nori <nsekhar@ti.com> Cc: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Mark Brown <broonie@kernel.org> Cc: Chris Zankel <chris@zankel.net> Acked-by: Max Filippov <jcmvbkbc@gmail.com> Acked-by: John Crispin <john@phrozen.org> Acked-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-05-03clk: sifive: add a driver for the SiFive FU540 PRCI IP blockPaul Walmsley3-0/+645
Add driver code for the SiFive FU540 PRCI IP block. This IP block handles reset and clock control for the SiFive FU540 device and implements SoC-level clock tree controls and dividers. Based on code written by Wesley Terpstra <wesley@sifive.com>: https://github.com/riscv/riscv-linux/commit/999529edf517ed75b56659d456d221b2ee56bb60 Boot and PLL rate change were tested on a SiFive HiFive Unleashed board. This version includes several changes requested by Stephen Boyd <sboyd@kernel.org>. Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com> Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Michael Turquette <mturquette@baylibre.com> Cc: Stephen Boyd <sboyd@kernel.org> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Wesley W. Terpstra <wesley@sifive.com> Cc: Palmer Dabbelt <palmer@sifive.com> Cc: Megan Wachs <megan@sifive.com> Cc: linux-riscv@lists.infradead.org Cc: linux-kernel@vger.kernel.org Cc: linux-clk@vger.kernel.org [sboyd@kernel.org: Fix some const and ARRAY_SIZE() issues, make makefile only descend if CLK_SIFIVE=y] Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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