net, qe: add DM support for QE UEC ethernet

add DM/DTS support for the UEC ethernet on QUICC Engine
Block.

Signed-off-by: Heiko Schocher <hs@denx.de>
Patch-cc: Mario Six <mario.six@gdsys.cc>
Patch-cc: Qiang Zhao <qiang.zhao@nxp.com>
Patch-cc: Holger Brunck <holger.brunck@hitachi-powergrids.com>
Patch-cc: Madalin Bucur <madalin.bucur@oss.nxp.com>

Series-changes: 3
- revert:
  commit "3374264df97b" ("drivers: net: qe: deselect QE when DM_ETH is enabled")
  as now qe works with DM and DM_ETH support.
- fix mailaddress from Holger

Series-changes: 2
- add comments from Qiang Zhao:
  - add device node documentation
  - I did not drop the dm_qe_uec_phy.c and use drivers/net/fsl_mdio.c
    because using drivers/net/fsl_mdio.c leads in none existent
    udevice mdio@3320
    instead boards with DM ETH support should use now this
    driver.
- remove RFC tag

Commit-notes:

- I let the old none DM based implementation in code
  so boards should work with old implementation.
  This Code should be removed if all boards are converted
  to DM/DTS.

- add the DM based qe uec driver under drivers/net/qe

- Therefore copied the files uccf.c uccf.h uec.h from
  drivers/qe. So there are a lot of Codingstyle problems
  currently. I fix them in next version if this RFC
  patch is OK or it needs some changes.

- The dm based driver code is now under drivers/net/qe/dm_qe_uec.c
  Used a lot of functions from drivers/qe/uec.c

- seperated the PHY specific code into seperate file
  drivers/net/qe/dm_qe_uec_phy.c

END

4 files changed, 8 insertions, 1 deletions

diff --git a/drivers/qe/Kconfig b/drivers/qe/Kconfig
index 44c9f010bd..864b36b822 100644
--- a/drivers/qe/Kconfig
+++ b/drivers/qe/Kconfig
@@ -3,7 +3,7 @@
 #
 config QE
 	bool "Enable support for QUICC Engine"
-	depends on PPC && !DM_ETH
+	depends on PPC
 	default y if ARCH_T1040 || ARCH_T1042 || ARCH_T1024 || ARCH_P1021 \
 		|| ARCH_P1025
 	help
diff --git a/drivers/qe/uccf.c b/drivers/qe/uccf.c
index 306f1ea1db..d5d734439c 100644
--- a/drivers/qe/uccf.c
+++ b/drivers/qe/uccf.c
@@ -14,6 +14,7 @@
 #include "uccf.h"
 #include <fsl_qe.h>
 
+#if !defined(CONFIG_DM_ETH)
 void ucc_fast_transmit_on_demand(struct ucc_fast_priv *uccf)
 {
 	out_be16(&uccf->uf_regs->utodr, UCC_FAST_TOD);
@@ -505,3 +506,4 @@ int ucc_fast_init(struct ucc_fast_inf *uf_info,
 	*uccf_ret = uccf;
 	return 0;
 }
+#endif
diff --git a/drivers/qe/uec.c b/drivers/qe/uec.c
index cfd5397044..5da971ddc0 100644
--- a/drivers/qe/uec.c
+++ b/drivers/qe/uec.c
@@ -20,6 +20,7 @@
 #include <fsl_qe.h>
 #include <phy.h>
 
+#if !defined(CONFIG_DM_ETH)
 /* Default UTBIPAR SMI address */
 #ifndef CONFIG_UTBIPAR_INIT_TBIPA
 #define CONFIG_UTBIPAR_INIT_TBIPA 0x1F
@@ -1432,3 +1433,4 @@ int uec_standard_init(struct bd_info *bis)
 {
 	return uec_eth_init(bis, uec_info, ARRAY_SIZE(uec_info));
 }
+#endif
diff --git a/drivers/qe/uec_phy.c b/drivers/qe/uec_phy.c
index b5ca5f76f9..9d429c832f 100644
--- a/drivers/qe/uec_phy.c
+++ b/drivers/qe/uec_phy.c
@@ -23,6 +23,8 @@
 #include <fsl_qe.h>
 #include <phy.h>
 
+#if !defined(CONFIG_DM_ETH)
+
 #define ugphy_printk(format, arg...)  \
 	printf(format "\n", ## arg)
 
@@ -925,3 +927,4 @@ void change_phy_interface_mode(struct eth_device *dev,
 	marvell_phy_interface_mode(dev, type, speed);
 #endif
 }
+#endif