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Octo Memory Manager driver (OMM) manages:
- the muxing between 2 OSPI busses and 2 output ports.
There are 4 possible muxing configurations:
- direct mode (no multiplexing): OSPI1 output is on port 1 and OSPI2
output is on port 2
- OSPI1 and OSPI2 are multiplexed over the same output port 1
- swapped mode (no multiplexing), OSPI1 output is on port 2,
OSPI2 output is on port 1
- OSPI1 and OSPI2 are multiplexed over the same output port 2
- the split of the memory area shared between the 2 OSPI instances.
- chip select selection override.
- the time between 2 transactions in multiplexed mode.
- check firewall access.
Signed-off-by: Patrice Chotard <[email protected]>
Reviewed-by: Patrick Delaunay <[email protected]>
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The AEMIF's bindings in the Linux tree have a node for the AEMIF
controller and then a node for each AEMIF's chip select. This CS node
doesn't have a compatible property but describes the timing parameters
used by a given chip select.
The U-Boot DM framework expects every node to have a 'compatible'
property. If no 'compatible' is present in a node, its children won't be
parsed by u-boot.
Add DM support to the ti-aemif driver.
Add a new ti-aemif-cs driver to comply with the Linux bindings and the
U-Boot's DM philosophy. This driver handles the timing parameters
of an AEMIF's chip select so move aemif_cs_configure() from ti-aemif.c
to ti-aemif-cs.c.
Signed-off-by: Bastien Curutchet <[email protected]>
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The EBI is used to access peripherals like NAND, SRAM, NOR etc. Add
this driver to probe the nand flash controller. This is a dummy driver
and not yet a complete device driver for EBI.
Signed-off-by: Balamanikandan Gunasundar <[email protected]>
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The GPMC is a unified memory controller dedicated for interfacing
with external memory devices like
- Asynchronous SRAM-like memories and ASICs
- Asynchronous, synchronous, and page mode burst NOR flash
- NAND flash
- Pseudo-SRAM devices
This driver will take care of setting up the GPMC based on
the settings specified in the Device tree and then
probe its children.
Signed-off-by: Roger Quadros <[email protected]>
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Introduce UCLASS_MEMORY for future Memory Controller
device drivers.
Signed-off-by: Roger Quadros <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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The driver adds the support for the STMicroelectronics FMC2 EBI controller
found on STM32MP SOCs.
Signed-off-by: Christophe Kerello <[email protected]>
Reviewed-by: Patrice Chotard <[email protected]>
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When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.
In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.
This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents. There's also a few places where I found we did not have a tag
and have introduced one.
Signed-off-by: Tom Rini <[email protected]>
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After consulting with some of the SPDX team, the conclusion is that
Makefiles are worth adding SPDX-License-Identifier tags too, and most of
ours have one. This adds tags to ones that lack them and converts a few
that had full (or in one case, very partial) license blobs into the
equivalent tag.
Cc: Kate Stewart <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
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Move AEMIF driver to drivers/memory/ti-aemif.c along with AEMIF
definitions collected in arch/arm/include/asm/ti-common/ti-aemif.h
Acked-by: Vitaly Andrianov <[email protected]>
Signed-off-by: Ivan Khoronzhuk <[email protected]>
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