litex sdr pi5

pi5.patch

diff --git a/software/kernel/main.c b/software/kernel/main.c
index 4e048e0..c9ca635 100644
--- a/software/kernel/main.c
+++ b/software/kernel/main.c
@@ -33,6 +33,7 @@
 #include <linux/cdev.h>
 #include <linux/platform_device.h>
 #include <linux/version.h>
+#include <linux/of_device.h>

 #if defined(__arm__) || defined(__aarch64__)
 #include <linux/dma-direct.h>
@@ -180,7 +181,7 @@ static int litepcie_dma_init(struct litepcie_device *s)
                        /* check */
                        if (!dmachan->writer_addr[j]
                                || !dmachan->reader_addr[j]) {
-                               dev_err(&s->dev->dev, "Failed to allocate dma buffers\n");
+                               dev_err(&s->dev->dev, "Failed to allocate dma buffers %px %px sz %x\n", dmachan->writer_addr[j], dmachan->reader_addr[j], DMA_BUFFER_SIZE);
                                return -ENOMEM;
                        }
                }
@@ -1063,7 +1064,9 @@ static int litepcie_pci_probe(struct pci_dev *dev, const struct pci_device_id *i
 #if LINUX_VERSION_CODE < KERNEL_VERSION(5, 18, 0)
        ret = pci_set_dma_mask(dev, DMA_BIT_MASK(DMA_ADDR_WIDTH));
 #else
+       of_dma_configure(&dev->dev, NULL, true);
        ret = dma_set_mask(&dev->dev, DMA_BIT_MASK(DMA_ADDR_WIDTH));
+       ret |= dma_set_coherent_mask(&dev->dev, DMA_BIT_MASK(DMA_ADDR_WIDTH));
 #endif
        if (ret) {
                dev_err(&dev->dev, "Failed to set DMA mask\n");
(END)