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path: root/drivers/timer
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2020-12-13dm: treewide: Rename auto_alloc_size members to be shorterSimon Glass18-19/+19
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>
2020-11-06board: Rename uclass to sysinfoSimon Glass1-5/+5
This uclass is intended to provide a way to obtain information about a U-Boot board. But the concept of a U-Boot 'board' is the whole system, not just one circuit board, meaning that 'board' is something of a misnomer for this uclass. In addition, the name 'board' is a bit overused in U-Boot and we want to use the same uclass to provide SMBIOS information. The obvious name is 'system' but that is so vague as to be meaningless. Use 'sysinfo' instead, since this uclass is aimed at providing information on the system. Rename everything accordingly. Note: Due to the patch delta caused by the symbol renames, this patch shows some renamed files as being deleted in one place and created in another. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-11-05x86: Fix up driver names to avoid dtoc warningsSimon Glass1-2/+2
At present there are a lot of dtoc warnings reported when building chromebook_coral, of the form: WARNING: the driver intel_apl_lpc was not found in the driver list Correct these by using driver names that matches their compatible string. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-10-26riscv: Move timer portions of SiFive CLINT to drivers/timerSean Anderson2-0/+48
Half of this driver is a DM-based timer driver, and half is RISC-V-specific IPI code. Move the timer portions in with the other timer drivers. The KConfig is not moved, since it also enables IPIs. It could also be split into two configs, but no boards use the timer but not the IPI atm, so I haven't split it. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Rick Chen <rick@andestech.com>
2020-10-26timer: Add _TIMER suffix to Andes PLMT KconfigSean Anderson2-2/+2
This matches the naming scheme of other timer drivers. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Rick Chen <rick@andestech.com>
2020-10-26riscv: Move Andes PLMT driver to drivers/timerSean Anderson3-0/+58
This is a regular timer driver, and should live with the other timer drivers. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Rick Chen <rick@andestech.com>
2020-10-22timer: Return count from timer_ops.get_countSean Anderson21-86/+49
No timer drivers return an error from get_count. Instead of possibly returning an error, just return the count directly. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-10-16timer: Include device_compat.hSean Anderson1-2/+3
Necessary for dev_xxx. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-10-05Merge tag 'u-boot-atmel-2021.01-a' of ↵Tom Rini3-0/+117
https://gitlab.denx.de/u-boot/custodians/u-boot-atmel into next First set of u-boot-atmel features for 2021.01 cycle: This feature set includes a new CPU driver for at91 family, new driver for PIT64B hardware timer, support for new at91 family SoC named sama7g5 which adds: clock support, including conversion of the clock tree to CCF; SoC support in mach-at91, pinctrl and mmc drivers update. The feature set also includes updates for mmc driver and some other minor fixes and features regarding building without the old Atmel PIT and the possibility to read a secondary MAC address from a second i2c EEPROM.
2020-09-30timer: Add a test for timer_timebase_fallbackSean Anderson1-1/+3
To test this function, sandbox CPU must set cpu_platdata.timebase_freq on bind. It also needs to expose a method to set the current cpu. I also make some most members of cpu_sandbox_ops static. On the timer side, the device tree property sandbox,timebase-frequency-fallback controls whether sandbox_timer_probe falls back to time_timebase_fallback or to SANDBOX_TIMER_RATE. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-09-30timer: Add helper for drivers using timebase fallbackSean Anderson1-0/+31
This function is designed to be used when a timer used to be initialized by the cpu (e.g. RISC-V timers), but now is initialized by dm_timer_init. In such a case, the timer may prefer to use the clocks and clock-frequency properties, but should be able to fall back on using the cpu's timebase-frequency. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Rick Chen <rick@andestech.com>
2020-09-30riscv: Rework riscv timer driver to only support S-modeSean Anderson2-21/+22
The riscv-timer driver currently serves as a shim for several riscv timer drivers. This is not too desirable because it bypasses the usual timer selection via the driver model. There is no easy way to specify an alternate timing driver, or have the tick rate depend on the cpu's configured frequency. The timer drivers also do not have device structs, and so have to rely on storing parameters in gd_t. Lastly, there is no initialization call, so driver init is done in the same function which reads the time. This can result in confusing error messages. To a user, it looks like the driver failed when trying to read the time, whereas it may have failed while initializing. This patch removes the shim functionality from the riscv-timer driver, and has it instead implement the former rdtime.c timer driver. This is because existing u-boot users who pass in a device tree (e.g. qemu) do not create a timer device for S-mode u-boot. The existing behavior of creating the riscv-timer device in the riscv cpu driver must be kept. The actual reading of the CSRs has been redone in the style of Linux's get_cycles64. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Rick Chen <rick@andestech.com>
2020-09-28timer: mchp-pit64b: add support for pit64bClaudiu Beznea3-0/+117
Add support for Microchip PIT64B timer. The timer is 64 bit length and is used as a free running counter (in continuous mode with highest values for period registers). The clock feeding the timer would be no more than 12.5MHz. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
2020-08-22treewide: convert devfdt_get_addr_ptr() to dev_read_addr_ptr()Masahiro Yamada2-2/+2
When you enable CONFIG_OF_LIVE, you will end up with a lot of conversions. To help this tedious work, this commit converts devfdt_get_addr_ptr() to dev_read_addr_ptr() by coccinelle. I also removed redundant casts because dev_read_addr_ptr() returns an opaque pointer. To generate this commit, I ran the following semantic patch excluding include/dm/. <smpl> @@ type T; expression dev; @@ -(T *)devfdt_get_addr_ptr(dev) +dev_read_addr_ptr(dev) @@ expression dev; @@ -devfdt_get_addr_ptr(dev) +dev_read_addr_ptr(dev) </smpl> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-08-22dm: core: Fix devfdt_get_addr_ptr return valueOvidiu Panait1-2/+2
According to the description of devfdt_get_addr_ptr, this function should return NULL on failure, but currently it returns (void *)FDT_ADDR_T_NONE. Fix this by making devfdt_get_addr_ptr return NULL on failure, as described in the function comments. Also, update the drivers currently checking (void *)FDT_ADDR_T_NONE to check for NULL. Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2020-07-25treewide: convert devfdt_get_addr() to dev_read_addr()Masahiro Yamada4-4/+4
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 Rini4-4/+4
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 Yamada4-4/+4
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>
2020-05-19common: Drop linux/bitops.h from common headerSimon Glass9-0/+9
Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-19common: Drop linux/delay.h from common headerSimon Glass1-0/+1
Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-19common: Drop asm/ptrace.h from common headerSimon Glass1-0/+1
Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-19common: Drop log.h from common headerSimon Glass3-0/+3
Move this header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-19common: Drop init.h from common headerSimon Glass3-0/+3
Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-19common: Drop bootstage.h from common headerSimon Glass3-0/+3
Move this fairly uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-01timer MediaTek use upstream compatibleMatthias Brugger1-0/+1
The timers compatible string in upstream is called mt6577-timer. Add this compatible to the driver. Signed-off-by: Matthias Brugger <mbrugger@suse.com>
2020-03-24timer: sti: use clk API to get timer clock rateNicolas Heemeryck1-2/+15
Retrieve clock rate through device tree. This mimics the behavior of arm_global_timer in Linux. Signed-off-by: Nicolas Heemeryck <nicolas.heemeryck@gmail.com> Cc: Patrice Chotard <patrice.chotard@st.com> Acked-by: Patrice Chotard <patrice.chotard@st.com>
2020-03-24timer: sti: convert to livetreeNicolas Heemeryck1-6/+3
Update STI timer to support a live tree Signed-off-by: Nicolas Heemeryck <nicolas.heemeryck@gmail.com> Cc: Patrice Chotard <patrice.chotard@st.com> Acked-by: Patrice Chotard <patrice.chotard@st.com>
2020-02-06dm: core: Create a new header file for 'compat' featuresSimon Glass3-0/+4
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>
2020-02-06dm: core: Require users of devres to include the headerSimon Glass3-0/+3
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>
2020-01-23timer: Add driver for Nomadik Multi Timer Unit (MTU)Stephan Gerhold3-0/+124
The Nomadik Multi Timer Unit (MTU) provides 4 decrementing free-running timers. It is used in ST-Ericsson Ux500 SoCs. The driver uses the first timer to implement UCLASS_TIMER. Signed-off-by: Stephan Gerhold <stephan@gerhold.net> Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
2019-12-15x86: timer: Reduce timer code size in TPL on Intel CPUsSimon Glass2-2/+14
Most of the timer-calibration methods are not needed on recent Intel CPUs and just increase code size. Add an option to use the known-good way to get the clock frequency in TPL. Size reduction is about 700 bytes. Note that version 1 of this commit caused bootstage to crash since the CPU was not identified. This is corrected by changes previously applied to make sure that the CPU is identified before spl_init() is called, such as 39146a2e0b x86: Move CPU init to before spl_init() Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-12-15x86: timer: use a timer base of 0Simon Glass2-1/+16
On x86 platforms the timer is reset to 0 when the SoC is reset. Having this as the timer base is useful since it provides an indication of how long it takes before U-Boot is running. When U-Boot sets the timer base to something else, time is lost and we no-longer have an accurate account of the time since reset. This particularly affects bootstage. Change the default to not read the timer base, leaving it at 0. Add an option for when U-Boot is the secondary bootloader. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-12-03common: Move interrupt functions into a new headerSimon Glass1-0/+1
These functions do not use driver model but are fairly widely used in U-Boot. But it is not clear that they will use driver model anytime soon, so we don't want to label them as 'legacy'. Move them to a new irq_func.h header file. Avoid the name 'irq.h' since it is widely used in U-Boot already. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2019-12-03common: Move get_ticks() function out of common.hSimon Glass1-0/+1
This function belongs in time.h so move it over and add a comment. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2019-12-03common: Move wait_ticks functions out of common.hSimon Glass1-0/+1
This function belongs in time.h so move it over and add a comment. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2019-12-03common: Drop global inclusion of status_led.hSimon Glass1-0/+1
This is only used by a few files so it should not be in the common header. Move it out. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com>
2019-12-03Drop CONFIG_SHOW_ACTIVITYSimon Glass1-4/+0
This feature is not enabled by any board. Drop it. Signed-off-by: Simon Glass <sjg@chromium.org>
2019-11-21timer: dw-apb: add reset handlingSimon Goldschmidt1-1/+17
To use this DM timer on socfpga as system tick, it needs to take itself out of reset. Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
2019-11-03x86: timer: Use a separate flag for whether timer is initedSimon Glass1-1/+2
At present the value of the timer base is used to determine whether the timer has been set up or not. It is true that the timer is essentially never exactly 0 when it is read. However 'time 0' may indicate the time that the machine was reset so it is useful to be able to denote that. Update the code to use a separate flag instead. Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Aiden Park <aiden.park@intel.com> Reviewed-by: Aiden Park <aiden.park@intel.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-11-03x86: timer: Set up the timer in timer_early_get_count()Simon Glass1-0/+2
This function can be called before the timer is set up. Make sure that the init function is called so that it works correctly. This is needed so that bootstage can work correctly in TPL. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-07-24dm: timer: Skip device that does not have a valid ofnode in pre_probe()Bin Meng1-0/+4
It is possible that a timer device has a null ofnode, hence there is no need to further parse DT for the clock rate. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2019-05-10timer: dw-apb: remove unused DECLARE_GLOBAL_DATA_PTRSimon Goldschmidt1-2/+0
The dw-apb timer does not use 'gd', so remove its declaration. Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
2019-05-07timer: renesas: Add RZ/A1 R7S72100 OSTM timer driverMarek Vasut3-0/+100
Add OSTM timer driver for RZ/A1 SoC. The IP is very different from the R-Car Gen2/Gen3 one already present in the tree, hence a custom driver. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Chris Brandt <chris.brandt@renesas.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2019-05-01rockchip: use 'arch-rockchip' as header file pathKever Yang1-1/+1
Rockchip use 'arch-rockchip' instead of arch-$(SOC) as common header file path, so that we can get the correct path directly. Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-04-24Merge tag 'u-boot-amlogic-20190423' of git://git.denx.de/u-boot-amlogicTom Rini1-1/+1
- Add support for Amlogic p200 & p201 Reference Designs - Add Amlogic SoC information display - Add support for the Libretech-AC AML-S805X-AC board - Add Amlogic AXG reset compatible - Add I2C support for Amlogic AXG - Fix AXG PIN and BANK pinctrl definitions - Fix regmap_read_poll_timeout warning about sandbox_timer_add_offset - Add initial support for Amlogic G12A SoC and U200 board - Enable PHY_REALTEK for selected boards - Fix Khadas VIM2 README
2019-04-23regmap: fix regmap_read_poll_timeout warning about sandbox_timer_add_offsetNeil Armstrong1-1/+1
When fixing sandbox test for regmap_read_poll_timeout(), the sandbox_timer_add_offset was introduced but only defined in sandbox code thus generating warnings when used out of sandbox : include/regmap.h:289:2: note: in expansion of macro 'regmap_read_poll_timeout_test' regmap_read_poll_timeout_test(map, addr, val, cond, sleep_us, \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/spi/meson_spifc.c:169:8: note: in expansion of macro 'regmap_read_poll_timeout' ret = regmap_read_poll_timeout(spifc->regmap, REG_SLAVE, data, ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/spi/meson_spifc.c: In function 'meson_spifc_txrx': include/regmap.h:277:4: warning: implicit declaration of function 'sandbox_timer_add_offset' [-Wimplicit-function-declaration] This fix adds a timer_test_add_offset() only defined in sandbox, and renames the previous sandbox_timer_add_offset() to it. Cc: Simon Glass <sjg@chromium.org> Reported-by: Tom Rini <trini@konsulko.com> Fixes: df9cf1cc08 ("test: dm: regmap: Fix the long test delay") Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2019-04-17timer: dw-apb: Add missing 64bit up-conversionMarek Vasut1-1/+1
The generic timer count is an incrementing 64bit value and a timer driver must return an incrementing 64bit value. The DW APB timer only provides a 32bit timer counting down, thus the result must be inverted and converted to a 64bit value. The current implementation is however missing the 64bit up-conversion and this results in random timer roll-overs, which in turn triggers random timeouts throughout the codebase. This patch adds the missing 64bit up-conversion to fix the issue. 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> Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com> Cc: Tien Fong Chee <tien.fong.chee@intel.com>
2019-02-12x86: tsc: Add support for native calibration of TSC freqBernhard Messerklinger1-0/+55
Add native tsc calibration function. Calibrate the tsc timer the same way as linux does in arch/x86/kernel/tsc.c. Fixes booting for Apollo Lake processors. Signed-off-by: Bernhard Messerklinger <bernhard.messerklinger@br-automation.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2018-12-18timer: Add generic driver for RISC-V privileged architecture defined timerBin Meng3-0/+64
RISC-V privileged architecture v1.10 defines a real-time counter, exposed as a memory-mapped machine-mode register - mtime. mtime must run at constant frequency, and the platform must provide a mechanism for determining the timebase of mtime. The mtime register has a 64-bit precision on all RV32, RV64, and RV128 systems. Different platform may have different implementation of the mtime block hence an API riscv_get_time() is required by this driver for platform codes to hide such implementation details. For example, on some platforms mtime is provided by the CLINT module, while on some other platforms a simple 'rdtime' can be used to get the timer counter. With this timer driver the U-Boot timer functionalities like delay works correctly now. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de> Reviewed-by: Anup Patel <anup@brainfault.org>
2018-11-29timer: MediaTek: add timer driver for MediaTek SoCsRyder Lee3-0/+93
This patch adds clock source and clock event for the timer found on the Mediatek SoCs. Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Tested-by: Matthias Brugger <matthias.bgg@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>