kernel/linux.git/include/soc/fsl/qe, branch linux-6.9.y

soc: fsl: cpm1: qmc: Introduce functions to change timeslots at runtime

2023-12-12T09:29:20+00:00

Introduce qmc_chan_{get,set}_ts_info() function to allow timeslots modification at runtime. The modification is provided using qmc_chan_set_ts_info() and will be applied on next qmc_chan_start(). qmc_chan_set_ts_info() must be called with the channel rx and/or tx stopped. Signed-off-by: Herve Codina Reviewed-by: Christophe Leroy Link: https://lore.kernel.org/r/20231205152116.122512-18-herve.codina@bootlin.com

soc: fsl: cpm1: qmc: Add support for child devices

2023-12-12T09:29:20+00:00

QMC child devices support is needed to avoid orphan DT nodes that use a simple DT phandle to reference a QMC channel. Allow to instantiate child devices and also extend the API to get the qmc_chan using a child device. Signed-off-by: Herve Codina Link: https://lore.kernel.org/r/20231205152116.122512-7-herve.codina@bootlin.com

soc: fsl: cpm1: qmc: Extend the API to provide Rx status

2023-12-12T09:29:20+00:00

In HDLC mode, some status flags related to the data read transfer can be set by the hardware and need to be known by a QMC consumer for further analysis. Extend the API in order to provide these transfer status flags at the read complete() call. In TRANSPARENT mode, these flags have no meaning. Keep only one read complete() API and update the consumers working in transparent mode. In this case, the newly introduced flags parameter is simply unused. Signed-off-by: Herve Codina Reviewed-by: Christophe Leroy Link: https://lore.kernel.org/r/20231205152116.122512-5-herve.codina@bootlin.com

docs: move powerpc under arch

2023-10-10T19:35:55+00:00

and fix all in-tree references. Architecture-specific documentation is being moved into Documentation/arch/ as a way of cleaning up the top-level documentation directory and making the docs hierarchy more closely match the source hierarchy. Signed-off-by: Costa Shulyupin Acked-by: Michael Ellerman Signed-off-by: Jonathan Corbet Link: https://lore.kernel.org/r/20230826165737.2101199-1-costa.shul@redhat.com

soc: fsl: cpm1: Add support for QMC

2023-03-05T23:37:03+00:00

The QMC (QUICC Multichannel Controller) emulates up to 64 channels within one serial controller using the same TDM physical interface routed from the TSA. It is available in some PowerQUICC SoC such as the MPC885 or MPC866. It is also available on some Quicc Engine SoCs. This current version support CPM1 SoCs only and some enhancement are needed to support Quicc Engine SoCs. Signed-off-by: Herve Codina Acked-by: Li Yang Reviewed-by: Christophe Leroy Link: https://lore.kernel.org/r/20230217145645.1768659-7-herve.codina@bootlin.com Signed-off-by: Mark Brown

soc: fsl: qe: request pins non-exclusively

2022-12-05T17:19:34+00:00

Commit 84582f9ed090 ("soc: fsl: qe: Avoid using gpio_to_desc()") changed qe_pin_request() to request and hold GPIO corresponding to a given pin. Unfortunately this does not work, as fhci-hcd requests these GPIOs first, befor calling qe_pin_request() (see drivers/usb/host/fhci-hcd.c::of_fhci_probe()). To fix it change qe_pin_request() to request GPIOs non-exclusively, and free them once the code determines GPIO controller and offset for each GPIO/pin. Also reaching deep into gpiolib implementation is not the best idea. We should either export gpio_chip_hwgpio() or keep converting to the global gpio numbers space until we fix the driver to implement proper pin control. Fixes: 84582f9ed090 ("soc: fsl: qe: Avoid using gpio_to_desc()") Signed-off-by: Dmitry Torokhov Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/Y400YXnWBdz1e/L5@google.com Signed-off-by: Arnd Bergmann

soc: fsl: Replace kernel.h with the necessary inclusions

2022-02-18T23:11:17+00:00

When kernel.h is used in the headers it adds a lot into dependency hell, especially when there are circular dependencies are involved. Replace kernel.h inclusion with the list of what is really being used. Signed-off-by: Andy Shevchenko Signed-off-by: Li Yang

Revert "soc: fsl: qe: introduce qe_io{read,write}* wrappers"

2021-04-06T20:40:48+00:00

This reverts commit 6ac9b61786cc64ae5cbfb69413137656f72e8204. This commit was required because at that time, ioread/iowrite functions were sub-optimal on powerpc/32 compared to the architecture specific in_/out_ IO accessors. But there are now equivalent since commit 894fa235eb4c ("powerpc: inline iomap accessors"). Signed-off-by: Christophe Leroy Signed-off-by: Li Yang

ethernet: ucc_geth: remove bd_mem_part and all associated code

2021-01-21T20:19:56+00:00

The bd_mem_part member of ucc_geth_info always has the value MEM_PART_SYSTEM, and AFAICT, there has never been any code setting it to any other value. Moreover, muram is a somewhat precious resource, so there's no point using that when normal memory serves just as well. Apart from removing a lot of dead code, this is also motivated by wanting to clean up the "store result from kmalloc() in a u32" mess. Signed-off-by: Rasmus Villemoes Signed-off-by: Jakub Kicinski

soc: fsl: qe: add cpm_muram_free_addr() helper

2021-01-21T20:19:55+00:00

Add a helper that takes a virtual address rather than the muram offset. This will be used in a couple of places to avoid having to store both the offset and the virtual address, as well as removing NULL checks from the callers. Signed-off-by: Rasmus Villemoes Acked-by: Li Yang Signed-off-by: Jakub Kicinski