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sunxi: enable IOMMU support for Allwinner A523/H616

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Signed-off-by: Tianling Shen <cnsztl@immortalwrt.org>
This commit is contained in:
Tianling Shen
2026-07-03 18:07:03 +08:00
parent 5f89c80883
commit 6e7e12ed0b
3 changed files with 24 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files
target/linux/sunxi/cortexa53/config-6.18
+17
View File
@@ -81,9 +81,21 @@ CONFIG_HOTPLUG_CORE_SYNC=y
CONFIG_HOTPLUG_CORE_SYNC_DEAD=y
# CONFIG_HOTPLUG_PCI_PCIE is not set
CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
# CONFIG_IOMMUFD is not set
CONFIG_IOMMU_API=y
# CONFIG_IOMMU_DEBUGFS is not set
# CONFIG_IOMMU_DEFAULT_DMA_LAZY is not set
# CONFIG_IOMMU_DEFAULT_DMA_STRICT is not set
CONFIG_IOMMU_DEFAULT_PASSTHROUGH=y
CONFIG_IOMMU_DMA=y
CONFIG_IOMMU_IOVA=y
CONFIG_IOMMU_IO_PGTABLE=y
# CONFIG_IOMMU_IO_PGTABLE_ARMV7S is not set
# CONFIG_IOMMU_IO_PGTABLE_DART is not set
CONFIG_IOMMU_IO_PGTABLE_LPAE=y
# CONFIG_IOMMU_IO_PGTABLE_LPAE_SELFTEST is not set
CONFIG_IOMMU_SUPPORT=y
CONFIG_IRQ_MSI_IOMMU=y
CONFIG_IRQ_MSI_LIB=y
CONFIG_LEGACY_DIRECT_IO=y
CONFIG_LRU_GEN_WALKS_MMU=y
@@ -97,6 +109,7 @@ CONFIG_MUSB_PIO_ONLY=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_NOP_USB_XCEIV=y
CONFIG_NO_IOPORT_MAP=y
CONFIG_OF_IOMMU=y
CONFIG_PAGE_SIZE_LESS_THAN_256KB=y
CONFIG_PAGE_SIZE_LESS_THAN_64KB=y
CONFIG_PARTITION_PERCPU=y
@@ -170,6 +183,10 @@ CONFIG_TOOLS_SUPPORT_RELR=y
CONFIG_TRACE_IRQFLAGS_NMI_SUPPORT=y
# CONFIG_UACCE is not set
CONFIG_UNMAP_KERNEL_AT_EL0=y
CONFIG_USB_DWC3=y
CONFIG_USB_DWC3_DUAL_ROLE=y
# CONFIG_USB_DWC3_HOST is not set
# CONFIG_USB_DWC3_GADGET is not set
CONFIG_USB_MUSB_DUAL_ROLE=y
CONFIG_USB_MUSB_HDRC=y
CONFIG_USB_MUSB_SUNXI=y
target/linux/sunxi/patches-6.18/124-iommu-sunxi-add-iommu-driver.patch
+6 -4
View File
@@ -643,7 +643,7 @@ Signed-off-by: Marvin Wewer <mwewer37@proton.me>
+#endif
--- /dev/null
+++ b/drivers/iommu/sun55i-iommu.c
@@ -0,0 +1,1604 @@
@@ -0,0 +1,1606 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/* Copyright(c) 2020 - 2023 Allwinner Technology Co.,Ltd. All rights reserved. */
+/*******************************************************************************
@@ -1358,8 +1358,7 @@ Signed-off-by: Marvin Wewer <mwewer37@proton.me>
+}
+
+static int sun55i_iommu_attach_dev(struct iommu_domain *domain,
+ struct device *dev,
+ struct iommu_domain *old_domain)
+ struct device *dev)
+{
+ return 0;
+}
@@ -1369,8 +1368,9 @@ Signed-off-by: Marvin Wewer <mwewer37@proton.me>
+ struct sunxi_iommu_owner *owner = dev_iommu_priv_get(dev);
+
+ WARN(!dev->dma_mask || *dev->dma_mask == 0, "NULL or 0 dma mask will fail iommu setup\n");
+ iommu_setup_dma_ops(dev);
+
+ sun55i_enable_device_iommu(owner->data, owner->tlbid, owner->flag);
+ sun55i_enable_device_iommu(owner->data, owner->tlbid, owner->flag);
+}
+
+static struct iommu_device *sun55i_iommu_probe_device(struct device *dev)
@@ -1753,6 +1753,8 @@ Signed-off-by: Marvin Wewer <mwewer37@proton.me>
+ sunxi_iommu_read(iommu, IOMMU_PMU_ML_REG6);
+
+ spin_unlock(&iommu->iommu_lock);
+err:
+ return 0;
+
+ len = scnprintf(
+ buf, PAGE_SIZE,
target/linux/sunxi/patches-6.18/131-02-arm64-dts-sun55i-a527-cubie-a5e-enable-usbc-pcie-combophy.patch
+1 -3
View File
@@ -4,7 +4,6 @@ Date: Sun, 11 Jan 2026 12:11:10 +0000
Subject: arm64: dts: allwinner: a527-cubie-a5e: enable PCIe/USB-C combophy
Signed-off-by: Marvin Wewer <mwewer37@proton.me>
---
---
arch/arm64/boot/dts/allwinner/sun55i-a527-cubie-a5e.dts | 58 ++++++++++
1 file changed, 58 insertions(+)
@@ -51,7 +50,7 @@ Signed-off-by: Marvin Wewer <mwewer37@proton.me>
};
&cpu0 {
@@ -430,3 +463,28 @@
@@ -430,3 +463,27 @@
usb1_vbus-supply = <&reg_usb_vbus>;
status = "okay";
};
@@ -79,4 +78,3 @@ Signed-off-by: Marvin Wewer <mwewer37@proton.me>
+ wakeup-source;
+ status = "okay";
+};
+