[PATCHv2 2/3] net: tsec: Access eTSEC registers using virtual address

[Zhiqiang Hou]

From: Hou Zhiqiang <zhiqiang....@nxp.com>

The current code accesses eTSEC registers using physical
address directly, it's not correct, though no problem on
current platforms. It won't work on platforms, which does
not support 1:1 virtual-physical address map.

Signed-off-by: Hou Zhiqiang <zhiqiang....@nxp.com>
Reviewed-by: Vladimir Oltean <vladimir.olt...@nxp.com>
Tested-by: Vladimir Oltean <vladimir.olt...@nxp.com>
---
V2:
 - Added error message for getting the external PHY MII reg.

 drivers/net/tsec.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/net/tsec.c b/drivers/net/tsec.c
index f85cdcb97e..541f964d2e 100644
--- a/drivers/net/tsec.c
+++ b/drivers/net/tsec.c
@@ -798,7 +798,7 @@ int tsec_probe(struct udevice *dev)
        int ret;
 
        pdata->iobase = (phys_addr_t)dev_read_addr(dev);
-       priv->regs = (struct tsec *)pdata->iobase;
+       priv->regs = dev_remap_addr(dev);
 
        if (dev_read_phandle_with_args(dev, "phy-handle", NULL, 0, 0,
                                       &phandle_args)) {
@@ -817,8 +817,13 @@ int tsec_probe(struct udevice *dev)
        }
 
        reg = ofnode_get_addr_index(parent, 0);
-       priv->phyregs_sgmii = (struct tsec_mii_mng *)
-                       (reg + TSEC_MDIO_REGS_OFFSET);
+       if (reg == FDT_ADDR_T_NONE) {
+               printf("No 'reg' property of MII for external PHY\n");
+               return -ENOENT;
+       }
+
+       priv->phyregs_sgmii = map_physmem(reg + TSEC_MDIO_REGS_OFFSET, 0,
+                                         MAP_NOCACHE);
 
        ret = dev_read_phandle_with_args(dev, "tbi-handle", NULL, 0, 0,
                                         &phandle_args);
-- 
2.17.1