From cddd4591404fb4c53dc0b3c0b15b942cdbed4356 Mon Sep 17 00:00:00 2001 From: Yangbo Lu Date: Fri, 10 Apr 2020 10:47:05 +0800 Subject: layerscape: add patches-5.4 Add patches for linux-5.4. The patches are from NXP LSDK-20.04 release which was tagged LSDK-20.04-V5.4. https://source.codeaurora.org/external/qoriq/qoriq-components/linux/ For boards LS1021A-IOT, and Traverse-LS1043 which are not involved in LSDK, port the dts patches from 4.14. The patches are sorted into the following categories: 301-arch-xxxx 302-dts-xxxx 303-core-xxxx 701-net-xxxx 801-audio-xxxx 802-can-xxxx 803-clock-xxxx 804-crypto-xxxx 805-display-xxxx 806-dma-xxxx 807-gpio-xxxx 808-i2c-xxxx 809-jailhouse-xxxx 810-keys-xxxx 811-kvm-xxxx 812-pcie-xxxx 813-pm-xxxx 814-qe-xxxx 815-sata-xxxx 816-sdhc-xxxx 817-spi-xxxx 818-thermal-xxxx 819-uart-xxxx 820-usb-xxxx 821-vfio-xxxx Signed-off-by: Yangbo Lu --- ...2-soc-fsl-bman-map-FBPR-area-in-the-iommu.patch | 47 ++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 target/linux/layerscape/patches-5.4/701-net-0002-soc-fsl-bman-map-FBPR-area-in-the-iommu.patch (limited to 'target/linux/layerscape/patches-5.4/701-net-0002-soc-fsl-bman-map-FBPR-area-in-the-iommu.patch') diff --git a/target/linux/layerscape/patches-5.4/701-net-0002-soc-fsl-bman-map-FBPR-area-in-the-iommu.patch b/target/linux/layerscape/patches-5.4/701-net-0002-soc-fsl-bman-map-FBPR-area-in-the-iommu.patch new file mode 100644 index 0000000000..afafe928e4 --- /dev/null +++ b/target/linux/layerscape/patches-5.4/701-net-0002-soc-fsl-bman-map-FBPR-area-in-the-iommu.patch @@ -0,0 +1,47 @@ +From 55705ace9136e1c24d92d7ab23e513439eb766e7 Mon Sep 17 00:00:00 2001 +From: Laurentiu Tudor +Date: Tue, 3 Apr 2018 17:55:00 +0300 +Subject: [PATCH] soc/fsl/bman: map FBPR area in the iommu + +Add a one-to-one iommu mapping for bman private data memory (FBPR). +This is required for BMAN to work without faults behind an iommu. + +Signed-off-by: Laurentiu Tudor +--- + drivers/soc/fsl/qbman/bman_ccsr.c | 11 +++++++++++ + 1 file changed, 11 insertions(+) + +--- a/drivers/soc/fsl/qbman/bman_ccsr.c ++++ b/drivers/soc/fsl/qbman/bman_ccsr.c +@@ -29,6 +29,7 @@ + */ + + #include "bman_priv.h" ++#include + + u16 bman_ip_rev; + EXPORT_SYMBOL(bman_ip_rev); +@@ -210,6 +211,7 @@ static int fsl_bman_probe(struct platfor + int ret, err_irq; + struct device *dev = &pdev->dev; + struct device_node *node = dev->of_node; ++ struct iommu_domain *domain; + struct resource *res; + u16 id, bm_pool_cnt; + u8 major, minor; +@@ -257,6 +259,15 @@ static int fsl_bman_probe(struct platfor + + dev_dbg(dev, "Allocated FBPR 0x%llx 0x%zx\n", fbpr_a, fbpr_sz); + ++ /* Create an 1-to-1 iommu mapping for FBPR area */ ++ domain = iommu_get_domain_for_dev(dev); ++ if (domain) { ++ ret = iommu_map(domain, fbpr_a, fbpr_a, fbpr_sz, ++ IOMMU_READ | IOMMU_WRITE | IOMMU_CACHE); ++ if (ret) ++ dev_warn(dev, "failed to iommu_map() %d\n", ret); ++ } ++ + bm_set_memory(fbpr_a, fbpr_sz); + + err_irq = platform_get_irq(pdev, 0); -- cgit v1.2.3