From 5a765365c689b90ea81f651a43bc30cd9c9c4ed8 Mon Sep 17 00:00:00 2001 From: Siddharth Vadapalli Date: Tue, 22 Apr 2025 17:30:40 +0530 Subject: [PATCH] arm64: dts: ti: k3-j721s2-main: Switch to 64-bit address space for PCIe1 The PCIe1 instance of PCIe in J721S2 SoC supports: 1. 128 MB address region in the 32-bit address space 2. 4 GB address region in the 64-bit address space The default configuration is that of a 128 MB address region in the 32-bit address space. While this might be sufficient for most use-cases, it is insufficient for supporting use-cases which require larger address spaces. Therefore, switch to using the 64-bit address space with a 4 GB address region. Signed-off-by: Siddharth Vadapalli Reviewed-by: Udit Kumar Link: https://lore.kernel.org/r/20250422120042.3746004-6-s-vadapalli@ti.com Signed-off-by: Nishanth Menon --- arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi index c0c2b95d4652..5071271c5a5c 100644 --- a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi @@ -1399,7 +1399,7 @@ reg = <0x00 0x02910000 0x00 0x1000>, <0x00 0x02917000 0x00 0x400>, <0x00 0x0d800000 0x00 0x800000>, - <0x00 0x18000000 0x00 0x1000>; + <0x41 0x00000000 0x00 0x1000>; /* ECAM (4 KB) */ reg-names = "intd_cfg", "user_cfg", "reg", "cfg"; interrupt-names = "link_state"; interrupts = ; @@ -1417,8 +1417,8 @@ device-id = <0xb013>; msi-map = <0x0 &gic_its 0x0 0x10000>; dma-coherent; - ranges = <0x01000000 0x0 0x18001000 0x00 0x18001000 0x0 0x0010000>, - <0x02000000 0x0 0x18011000 0x00 0x18011000 0x0 0x7fef000>; + ranges = <0x01000000 0x00 0x00001000 0x41 0x00001000 0x00 0x00100000>, /* IO (1 MB) */ + <0x02000000 0x00 0x00101000 0x41 0x00101000 0x00 0xffeff000>; /* 32-bit Non-Prefetchable MEM (4 GB - 1 MB - 4 KB) */ dma-ranges = <0x02000000 0x0 0x0 0x0 0x0 0x10000 0x0>; #interrupt-cells = <1>; interrupt-map-mask = <0 0 0 7>; -- 2.50.1