diff options
| author | Bryan Brattlof | 2023-12-29 11:47:09 -0600 |
|---|---|---|
| committer | Tom Rini | 2024-01-03 08:36:37 -0500 |
| commit | 5e00547e583f6d4349f3908d3491bf6ce0a8818c (patch) | |
| tree | 6106704944d8616570fd7a75ee36537fb989bb77 /arch | |
| parent | 194641300c1679cb53ea5399251df21cf94611ef (diff) | |
arm: dts: k3-am654: add needed regs to udmap nodes
Ethernet is one of a few IPs in U-Boot that depend on DMA to operate.
However there are a few missing registers ranges in the udmap nodes
need to properly setup DMA for the am65x.
A fix has been added to the Linux kernel[0] to add these ranges however
they have not made it to a Linux tag. To keep DMA operational until the
next DT sync from Linux, add these ranges to the *-u-boot.dtsi with a
note for our future selves.
[0] https://lore.kernel.org/r/20231213135138.929517-2-vigneshr@ti.com
Tested-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Bryan Brattlof <bb@ti.com>
Reviewed-by: Nishanth Menon <nm@ti.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/dts/k3-am654-base-board-u-boot.dtsi | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/arm/dts/k3-am654-base-board-u-boot.dtsi b/arch/arm/dts/k3-am654-base-board-u-boot.dtsi index a008af5b4a0..a24cb895e55 100644 --- a/arch/arm/dts/k3-am654-base-board-u-boot.dtsi +++ b/arch/arm/dts/k3-am654-base-board-u-boot.dtsi @@ -252,3 +252,37 @@ &mcu_r5fss0 { ti,cluster-mode = <0>; }; + +/* + * The DMA driver requires a few extra register ranges + * which are missing for the am65x. A patch has been + * sent and will be synced after the v6.8-rc1 linux + * tag is published + */ +&main_udmap { + reg = <0x0 0x31150000 0x0 0x100>, + <0x0 0x34000000 0x0 0x100000>, + <0x0 0x35000000 0x0 0x100000>, + <0x0 0x30b00000 0x0 0x10000>, + <0x0 0x30c00000 0x0 0x10000>, + <0x0 0x30d00000 0x0 0x8000>; + reg-names = "gcfg", "rchanrt", "tchanrt", + "tchan", "rchan", "rflow"; +}; + +/* + * The DMA driver requires a few extra register ranges + * which are missing for the am65x. A patch has been + * sent and will be synced after the v6.8-rc1 linux + * tag is published + */ +&mcu_udmap { + reg = <0x0 0x285c0000 0x0 0x100>, + <0x0 0x2a800000 0x0 0x40000>, + <0x0 0x2aa00000 0x0 0x40000>, + <0x0 0x284a0000 0x0 0x4000>, + <0x0 0x284c0000 0x0 0x4000>, + <0x0 0x28400000 0x0 0x2000>; + reg-names = "gcfg", "rchanrt", "tchanrt", + "tchan", "rchan", "rflow"; +}; |