starfive-tech/u-boot.git/drivers/soc/ti, branch master

soc: ti: pruss: Add a platform driver for PRUSS in TI SoCs

2021-07-15T12:26:04+00:00

The Programmable Real-Time Unit - Industrial Communication Subsystem (PRU-ICSS) is present of various TI SoCs such as AM335x or AM437x or the AM654x family. Each SoC can have one or more PRUSS instances that may or may not be identical. The PRUSS consists of dual 32-bit RISC cores called the Programmable Real-Time Units (PRUs), some shared, data and instruction memories, some internal peripheral modules, and an interrupt controller. The programmable nature of the PRUs provide flexibility to implement custom peripheral interfaces, fast real-time responses, or specialized data handling. Add support for pruss driver. Currently am654x family is supported. Signed-off-by: Keerthy Signed-off-by: Roger Quadros Signed-off-by: Lokesh Vutla Link: https://lore.kernel.org/r/20210622063431.3151-2-lokeshvutla@ti.com

soc: ti: k3-navss-ringacc: Add support for native configuration of rings

2021-06-11T13:48:52+00:00

In absence of Device Manager (DM) services such as at R5 SPL stage, driver will have to natively setup Ring Cfg registers. Add support for the same. Note that we still need to send RING_CFG message to TIFS via TISCI client driver in order to open up firewalls around Rings. U-Boot specific code is in a separate file included in main driver so as to maintain similarity with kernel driver in order to ease porting of code in future. Signed-off-by: Vignesh Raghavendra Signed-off-by: Lokesh Vutla Link: https://lore.kernel.org/r/20210607141753.28796-7-vigneshr@ti.com

soc: ti: k3-navss-ringacc: Remove unused ring modes

2021-05-12T11:06:38+00:00

With AM64x supporting only K3_NAV_RINGACC_RING_MODE_RING or the exposed ring mode, all other K3 SoCs have also been moved to this common baseline. Therefore drop other modes such as K3_NAV_RINGACC_RING_MODE_MESSAGE (and proxy) to save on SPL footprint. There is a saving of ~800 bytes with this change for am65x_evm_r5_defconfig. Signed-off-by: Vignesh Raghavendra Reviewed-by: Grygorii Strashko

soc: ti: k3-navss-ringacc: Add AM64 ringacc support

2021-05-12T11:06:38+00:00

AM64 dual mode rings are modeled as pair of Rings objects which has common configuration and memory buffer, but separate real-time control register sets for each direction mem2dev (forward) and dev2mem (reverse). AM64 rings must be requested only using k3_ringacc_request_rings_pair(), and forward ring must always be initialized/configured. After this any other Ringacc APIs can be used without any callers changes. Signed-off-by: Vignesh Raghavendra

dm: treewide: Rename auto_alloc_size members to be shorter

2020-12-13T15:00:25+00:00

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

soc: ti: k3-ringacc: Separate soc specific initialization

2020-07-13T15:28:34+00:00

In preparation of adding more K3 SoCs, separate soc specific initialization add a SoC specific initialization hook. Signed-off-by: Vignesh Raghavendra

soc: ti: k3-ringacc: Add an API to request pair of rings

2020-07-13T15:28:34+00:00

Add new API k3_ringacc_request_rings_pair() to request pair of rings at once, as in the most case Rings are used with DMA channels which required to request pair of rings - one to feed DMA with descriptors (TX/RX FDQ) and one to receive completions (RX/TX CQ). This will allow to simplify Ringacc API users. Signed-off-by: Vignesh Raghavendra

soc: ti: k3-ringacc: Move state tracking variables under a struct

2020-07-13T15:28:34+00:00

Move the free, occ, windex and rinfex under a struct. We can use memset to zero them and it will allow a cleaner way to extend the variables for duplex rings. Signed-off-by: Vignesh Raghavendra

common: Drop linux/bitops.h from common header

2020-05-19T01:19:23+00:00

Move this uncommon header out of the common header. Signed-off-by: Simon Glass

common: Drop log.h from common header

2020-05-19T01:19:18+00:00

Move this header out of the common header. Signed-off-by: Simon Glass