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path: root/drivers/timer
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2017-03-24drivers: timer: Introduce ARC timer driverVlad Zakharov
This commit introduces timer driver for ARC. ARC timers are configured via ARC AUX registers so we use special functions to access timer control registers. This driver allows utilization of either timer0 or timer1 depending on which one is available in real hardware. Essentially only existing timers should be mentioned in board's Device Tree description. Signed-off-by: Vlad Zakharov <vzakhar@synopsys.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-03-14STiH410: Add STi timer driverPatrice Chotard
Add ARM global timer based timer Signed-off-by: Patrice Chotard <patrice.chotard@st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-02-08dm: core: Replace of_offset with accessorSimon Glass
At present devices use a simple integer offset to record the device tree node associated with the device. In preparation for supporting a live device tree, which uses a node pointer instead, refactor existing code to access this field through an inline function. Signed-off-by: Simon Glass <sjg@chromium.org>
2017-01-28aspeed: Add drivers common to all Aspeed SoCsmaxims@google.com
Add support for Watchdog Timer, which is compatible with AST2400 and AST2500 watchdogs. There is no uclass for Watchdog yet, so the driver does not follow the driver model. It also uses fixed clock, so no clock driver is needed. Add support for timer for Aspeed ast2400/ast2500 devices. The driver actually controls several devices, but because all devices share the same Control Register, it is somewhat difficult to completely decouple them. Since only one timer is needed at the moment, this should be OK. The timer uses fixed clock, so does not rely on a clock driver. Add sysreset driver, which uses watchdog timer to do resets and particular watchdog device to use is hardcoded (0) Reviewed-by: Simon Glass <sjg@chromium.org>
2016-12-27timer: Support clocks via phandleZakharov Vlad
Earlier timer driver needed a clock-frequency property in compatible device-tree nodes. Another way is to reference a clock via a phandle. So now timer_pre_probe tries to get clock by reference through device tree. In case it is impossible to get clock device through the reference, clock-frequency property of the timer node is read to provide backward compatibility. Signed-off-by: Vlad Zakharov <vzakhar@synopsys.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-03-14Merge git://git.denx.de/u-boot-dmTom Rini
2016-03-14dm: omap_timer: Fix conversion of address to a pointerLokesh Vutla
OMAP timer driver directly typecasts fdt_addr_t to a pointer. This is not strictly correct, as it gives a build warning when fdt_addr_t is u64. So, use map_physmem for a proper typecasts. This is inspired by commit 167efe01bc5a9 ("dm: ns16550: Use an address instead of a pointer for the uart base") Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2016-03-14dm: Use uclass_first_device_err() where it is usefulSimon Glass
Use this new function in places where it simplifies the code. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-02-26sandbox: timer: Support the early timerSimon Glass
Add support for the early timer so we can use tracing with sandbox again. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-02-26timer: Provide an early timerSimon Glass
In some cases the timer must be accessible before driver model is active. Examples include when using CONFIG_TRACE to trace U-Boot's execution before driver model is set up. Enable this option to use an early timer. These functions must be supported by your timer driver: timer_early_get_count() and timer_early_get_rate(). Signed-off-by: Simon Glass <sjg@chromium.org>
2016-02-26timer: Support tracing fullySimon Glass
A few of the functions in the timer uclass are not marked with 'notrace'. Fix this so that tracing can be used with CONFIG_TRACE. Signed-off-by: Simon Glass <sjg@chromium.org>
2016-01-20timer: sandbox: work without device treeStephen Warren
A default invocation of sandbox U-Boot apparently uses no device tree, which means that no timer is registers, which in turn means that the sleep shell command hangs. Fix the sandbox timer code to register a device when there's no DT, just like e.g. the sandbox reset driver does. When there's no DT, the DM uclass can't initialize clock_rate from DT, so set a default value in the timer code instead. Signed-off-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
2016-01-20dm: timer: refuse timers with zero clock_rateStephen Warren
If a timer has a zero clock_rate, get_tbclk() will return zero for it, which will cause tick_to_time() to perform a division-by-zero, which will crash U-Boot. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Simon Glass <sjg@chromium.org>
2016-01-20drivers: timer: omap_timer: add timer driver for omap devices based on dmMugunthan V N
Adding a timer driver for omap devices based on driver model and device tree. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
2016-01-20dm: timer: uclass: Add flag to control sequence numberingMugunthan V N
Like SPI and I2C, timer devices also have multiple chip instances. This patch adds the flag 'DM_UC_FLAG_SEQ_ALIAS' in timer_uclass driver to control device sequence numbering. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2016-01-20dm: timer: uclass: add timer init in uclass driver to add timer deviceMugunthan V N
Adding timer init function in timer-uclass driver to create and initialize the timer device on platforms where u-boot,dm-pre-reloc is not used. Since there will be multiple timer devices in the system, adding a tick-timer node in chosen node to know which timer device to be used as tick timer in u-boot. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
2015-12-09x86: Move i8254_init() to x86_cpu_init_f()Bin Meng
Right now i8254_init() is called from timer_init() in the tsc timer driver. But actually i8254 and tsc are completely different things. Since tsc timer has been converted to driver model, we should find a new place that is appropriate for U-Boot to call i8254_init(), which is now x86_cpu_init_f(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-12-01x86: tsc: Move tsc_timer.c to drivers/timerBin Meng
To group all dm timer drivers together, move tsc timer to drivers/timer directory. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-12-01dm: timer: Support 64-bit counterBin Meng
There are timers with a 64-bit counter value but current timer uclass driver assumes a 32-bit one. Modify timer_get_count() to ask timer driver to always return a 64-bit counter value, and provide an inline helper function timer_conv_64() to handle the 32-bit/64-bit conversion automatically. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
2015-12-01timer: sandbox: Use device tree to pass the clock frequencyBin Meng
We should use device tree to pass the clock frequency of the timer instead of hardcoded in the driver codes. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-12-01timer: altera: Remove the codes to get clock frequencyBin Meng
Since we have timer uclass to get clock frequency for us, remove the custom version in the altera timer driver. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Thomas Chou <thomas@wytron.com.tw> Acked-by: Simon Glass <sjg@chromium.org>
2015-12-01dm: timer: Implement pre_probe()Bin Meng
Every timer device needs to have a valid clock frequency and it can be specified in the device tree. Use pre_probe() to get this in the timer uclass driver. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Thomas Chou <thomas@wytron.com.tw> Acked-by: Simon Glass <sjg@chromium.org>
2015-12-01dm: timer: Fix several nitsBin Meng
This changes 'Timer' to 'timer' at several places. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Simon Glass <sjg@chromium.org>
2015-11-19sandbox: add a sandbox timer and basic testThomas Chou
Add a sandbox timer which get time from host os and a basic test. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Simon Glass <sjg@chromium.org>
2015-11-18altera_timer: change ioremap to map_physmemThomas Chou
Change ioremap() to map_physmem(), as it is more used in u-boot. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Marek Vasut <marex@denx.de>
2015-11-06timer: altera_timer: minor clean upThomas Chou
- Moved macro definitions to top - Remove the penultimate comma in of_match ids Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Jagan Teki <jteki@openedev.com>
2015-11-06timer: altera_timer: use BIT macroThomas Chou
Replace numerical bit shift with BIT macro in altera_timer :%s/(1 << nr)/BIT(nr)/g where nr = 0, 1, 2 .... 31 Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Jagan Teki <jteki@openedev.com>
2015-10-23nios2: convert altera timer to driver modelThomas Chou
Convert altera timer to driver model. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Acked-by: Chin Liang See <clsee@altera.com>
2015-10-23dm: implement a Timer uclassThomas Chou
Implement a Timer uclass to work with lib/time.c. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Acked-by: Simon Glass <sjg@chromium.org>
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