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author | Romain Naour <romain.naour@skf.com> | 2024-11-15 11:25:37 +0100 |
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committer | Kevin Hilman <khilman@baylibre.com> | 2024-12-06 12:55:40 -0800 |
commit | c1472ec1dc4419d0bae663c1a1e6cb98dc7881ad (patch) | |
tree | b20b621d632ab3553f03f47a8249d27084b06092 /scripts/gdb/linux/modules.py | |
parent | 40384c840ea1944d7c5a392e8975ed088ecf0b37 (diff) |
ARM: dts: dra7: Add bus_dma_limit for l4 cfg bus
A bus_dma_limit was added for l3 bus by commit cfb5d65f2595
("ARM: dts: dra7: Add bus_dma_limit for L3 bus") to fix an issue
observed only with SATA on DRA7-EVM with 4GB RAM and CONFIG_ARM_LPAE
enabled.
Since kernel 5.13, the SATA issue can be reproduced again following
the SATA node move from L3 bus to L4_cfg in commit 8af15365a368
("ARM: dts: Configure interconnect target module for dra7 sata").
Fix it by adding an empty dma-ranges property to l4_cfg and
segment@100000 nodes (parent device tree node of SATA controller) to
inherit the 2GB dma ranges limit from l3 bus node.
Note: A similar fix was applied for PCIe controller by commit
90d4d3f4ea45 ("ARM: dts: dra7: Fix bus_dma_limit for PCIe").
Fixes: 8af15365a368 ("ARM: dts: Configure interconnect target module for dra7 sata").
Link: https://lore.kernel.org/linux-omap/c583e1bb-f56b-4489-8012-ce742e85f233@smile.fr/
Cc: stable@vger.kernel.org # 5.13
Signed-off-by: Romain Naour <romain.naour@skf.com>
Link: https://lore.kernel.org/r/20241115102537.1330300-1-romain.naour@smile.fr
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Diffstat (limited to 'scripts/gdb/linux/modules.py')
0 files changed, 0 insertions, 0 deletions