Introduce a new version of the Keystone-II "ddr" command for testing the
inline ECC support in the DDRSS bridge available on K3 devices. The ECC
hardware support in K3's DDRSS and the test method differ substantially
from what we support in the K2 variant of the command. This K3 DDRSS
command currently supports only single controller testing.
The ECC error injection procedure follows these steps:
1) Flush and disable the data cache.
2) Disable the protected ECC Rx range.
3) Flip a bit in the address.
4) Restore the range to original.
5) Read the modified value (corrected).
6) Re-enable the data cache.
This will cause the 1-bit ECC error count to increase while the read
will return the corrected value.
The K3 version of the command extends the syntax for the "ecc_err"
argument by also introducing an argument for range which specifies which
range (0, 1, 2) the address is located in.
Multi-bit ECC errors are uncorrectable and will lead to a synchronous
abort.
Signed-off-by: Georgi Vlaev <g-vlaev@ti.com>
Signed-off-by: Santhosh Kumar K <s-k6@ti.com>
[n-francis@ti.com: Add J7 and multiple-region support, simplify logic]
Signed-off-by: Neha Malcom Francis <n-francis@ti.com>
Reviewed-by: Udit Kumar <u-kumar1@ti.com>
- Add some dependencies to CMD_DDR3 as this is only valid on some
platforms (which tend to select it as well).
- The proper gate for going in to cmd/ti is not
CONFIG_TI_COMMON_CMD_OPTIONS as nothing under there is controlled by
that symbol but the general TI architecture options.
Signed-off-by: Tom Rini <trini@konsulko.com>
Add support command for debugging K3 power domains. This is useful with
the HSM rearch setup, where power domains are directly controlled by SPL
instead of going through the TI SCI layer. The debugging support is only
available in the u-boot codebase though, so the raw register access
power domain layer must be enabled on u-boot side for this to work. By
default, u-boot side uses the TI SCI layer, and R5 SPL only uses the
direct access methods.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tero Kristo <kristo@kernel.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
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 <trini@konsulko.com>
Move cmd_ddr3 to cmd/ti in order to make
it build for non-keystone TI platforms.
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
[trini: Rename to ddr3.c not cmd_ddr3.c]
Signed-off-by: Tom Rini <trini@konsulko.com>
