ufs: Allow mmio registers on the PCI bus

Check if the UFS controller is on the PCI bus, and get its register
base address accordingly.

Signed-off-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Neha Malcom Francis <n-francis@ti.com>

diff --git a/drivers/ufs/ufs.c b/drivers/ufs/ufs.c
index 96801866d333b44dd6fea0dd2c87c774d87dd0a0..fb2a607ef11744c6a8258411e69973d559f14a66 100644 (file)
--- a/drivers/ufs/ufs.c
+++ b/drivers/ufs/ufs.c
@@ -1914,6 +1914,7 @@ int ufshcd_probe(struct udevice *ufs_dev, struct ufs_hba_ops *hba_ops)
        struct ufs_hba *hba = dev_get_uclass_priv(ufs_dev);
        struct scsi_plat *scsi_plat;
        struct udevice *scsi_dev;
+       void __iomem *mmio_base;
        int err;
 
        device_find_first_child(ufs_dev, &scsi_dev);
@@ -1927,7 +1928,14 @@ int ufshcd_probe(struct udevice *ufs_dev, struct ufs_hba_ops *hba_ops)
 
        hba->dev = ufs_dev;
        hba->ops = hba_ops;
-       hba->mmio_base = dev_read_addr_ptr(ufs_dev);
+
+       if (device_is_on_pci_bus(ufs_dev)) {
+               mmio_base = dm_pci_map_bar(ufs_dev, PCI_BASE_ADDRESS_0, 0, 0,
+                                          PCI_REGION_TYPE, PCI_REGION_MEM);
+       } else {
+               mmio_base = dev_read_addr_ptr(ufs_dev);
+       }
+       hba->mmio_base = mmio_base;
 
        /* Set descriptor lengths to specification defaults */
        ufshcd_def_desc_sizes(hba);