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Giuseppe CAVALLARO 53b26b9bc9 stmmac: dwmac-sti: review the glue-logic for STi4xx and STiD127 SoCs 
This patch is to review the whole glue logic adopted on STi SoCs that
was bugged.

In the old glue-logic there was a lot of confusion when setup the
retiming especially for STiD127 where, for example, the bits 6 and 7
(in the GMAC  control register) have a different meaning of what is
used for STiH4xx SoCs. So we cannot adopt the same glue for all these
SoCs.
Moreover, GiGa on STiD127 didn't work and, for all the SoCs, the RGMII
couldn't run when the speed was 10Mbps (because the clock was not properly
managed).
Note that the phy clock needs to be provided by the platform as well as
documented in the related binding file (updated as consequence).

The old code supported too many configurations never adopted and validated.
This made the code very complex to maintain and debug in case of issues.

The patch simplifies all the configurations as commented in the tables
inside the file and obviously it has been tested on all the boards
based on the SoCs mentioned.

With this patch, the dwmac-sti is also ready to support new configurations that
will be available on next SoC generations.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2014-10-14 16:40:06 -04:00
..
can can: rcar_can: document device tree bindings 2014-08-18 01:03:42 +02:00
dsa Documentation: devicetree: update dsa binding with optional properties 2014-08-27 22:59:41 -07:00
ieee802154 devicetree: add device tree bindings for cc2520 driver 2014-06-22 21:32:40 -07:00
nfc NFC: dts: st21nfcb_i2c: Fix invalid interrupts polarity. 2014-09-24 02:02:23 +02:00
wireless dt: bindings: add bindings for Broadcom bcm43xx sdio devices 2014-07-29 10:32:56 -04:00
allwinner,sun4i-emac.txt DT: net: document Ethernet bindings in one place 2014-02-18 17:05:39 -05:00
allwinner,sun4i-mdio.txt net: phy: sunxi: Add new compatibles 2014-02-06 19:46:54 -08:00
allwinner,sun7i-a20-gmac.txt net: stmmac: sunxi platform extensions for GMAC in Allwinner A20 SoC's 2014-01-19 20:02:41 -08:00
altera_tse.txt dts: Add bindings for the Altera Triple Speed Ethernet driver 2014-03-17 21:26:56 -04:00
amd-xgbe-phy.txt amd-xgbe: Update/fix 2.5GbE support 2014-07-30 18:46:52 -07:00
amd-xgbe.txt amd-xgbe: Add hardware timestamp support 2014-07-30 18:46:52 -07:00
apm-xgene-enet.txt Documentation: dts: Update section header for APM X-Gene 2014-10-10 15:06:59 -04:00
arc_emac.txt arc_emac: add clock handling 2014-04-27 19:46:17 -04:00
broadcom-bcm87xx.txt netdev/phy: Add driver for Broadcom BCM87XX 10G Ethernet PHYs 2012-06-27 21:23:25 -07:00
broadcom-bcmgenet.txt Documentation: devicetree: net: refer to fixed-link.txt 2014-05-22 15:16:43 -04:00
broadcom-mdio-unimac.txt net: phy: add generic UniMAC MDIO bus driver 2014-08-27 22:59:39 -07:00
broadcom-sf2.txt Documentation: devicetree: add Broadcom Starfighter 2 binding 2014-08-27 22:59:41 -07:00
broadcom-systemport.txt net: systemport: add Wake-on-LAN support 2014-07-07 20:56:47 -07:00
calxeda-xgmac.txt ARM: highbank: add coherent DMA setup 2012-10-02 08:58:07 +02:00
cavium-mdio.txt MIPS: Octeon: Add device tree source files. 2012-07-23 13:54:52 +01:00
cavium-mix.txt DT: net: document Ethernet bindings in one place 2014-02-18 17:05:39 -05:00
cavium-pip.txt DT: net: document Ethernet bindings in one place 2014-02-18 17:05:39 -05:00
cdns-emac.txt DT: net: document Ethernet bindings in one place 2014-02-18 17:05:39 -05:00
cpsw-phy-sel.txt drivers: net: cpsw-phy-sel: add am43xx platform support 2014-05-13 00:11:00 -04:00
cpsw.txt net: cpsw: Add am33xx MACID readout 2014-09-30 01:30:43 -04:00
davicom-dm9000.txt DT: net: document Ethernet bindings in one place 2014-02-18 17:05:39 -05:00
davinci-mdio.txt net: davinci_mdio: reuse for keystone2 arch 2014-07-16 23:33:16 -07:00
davinci_emac.txt DT: net: document Ethernet bindings in one place 2014-02-18 17:05:39 -05:00
emac_rockchip.txt dt-bindings: Document EMAC Rockchip 2014-09-09 17:29:59 -07:00
ethernet.txt net: phy: add minimal support for QSGMII PHY 2014-04-16 14:36:12 -04:00
fixed-link.txt Documentation: devicetree: add old and deprecated 'fixed-link' 2014-05-22 15:16:43 -04:00
fsl-fec.txt ARM: Documentation: Update fec dts binding doc 2014-09-13 17:32:17 -04:00
fsl-tsec-phy.txt Documentation: devicetree: net: refer to fixed-link.txt 2014-05-22 15:16:43 -04:00
gpmc-eth.txt Documentation: dt: update TI GPMC ethernet binding properties 2013-04-30 08:33:59 -05:00
hisilicon-hix5hd2-gmac.txt Documentation: add Device tree bindings for Hisilicon hix5hd2 ethernet 2014-06-02 23:39:05 -07:00
lpc-eth.txt DT: net: document Ethernet bindings in one place 2014-02-18 17:05:39 -05:00
macb.txt DT: net: document Ethernet bindings in one place 2014-02-18 17:05:39 -05:00
marvell-armada-370-neta.txt DT: net: document Ethernet bindings in one place 2014-02-18 17:05:39 -05:00
marvell-orion-mdio.txt net: mvmdio: add clocks property to binding documentation 2013-04-11 16:19:37 -04:00
marvell-orion-net.txt DT: net: document Ethernet bindings in one place 2014-02-18 17:05:39 -05:00
marvell-pp2.txt ethernet: Add new driver for Marvell Armada 375 network unit 2014-07-10 17:18:24 -07:00
marvell-pxa168.txt Documentation: bindings: net: add the Marvell PXA168 Ethernet controller 2014-09-30 16:36:12 -04:00
mdio-gpio.txt net: mdio-gpio: fix device-tree binding documentation 2014-05-09 15:51:19 -04:00
mdio-mux-gpio.txt netdev/of/phy: Add MDIO bus multiplexer driven by GPIO lines. 2012-05-07 22:58:09 -04:00
mdio-mux-mmioreg.txt netdev/phy: add MDIO bus multiplexer driven by a memory-mapped device 2012-08-30 12:54:48 -04:00
mdio-mux.txt netdev/of/phy: Add MDIO bus multiplexer support. 2012-05-07 22:58:09 -04:00
meson-dwmac.txt net: stmmac: meson: document device tree bindings 2014-09-26 00:12:56 -04:00
micrel-ks8851.txt devicetree: bindings: Properly document micrel ks8851 SPI chips 2014-05-24 14:03:21 -04:00
micrel-ksz90x1.txt Update Micrel KSZ90x1 binding documentation 2014-05-07 16:51:09 -04:00
micrel.txt net/phy: micrel: Add clock support for KSZ8021/KSZ8031 2014-10-10 15:35:13 -04:00
moxa,moxart-mac.txt net: Add MOXA ART SoCs ethernet driver 2013-08-11 21:38:12 -07:00
opencores-ethoc.txt net: ethoc: document OF bindings 2014-02-19 16:36:13 -05:00
phy.txt dt: Document a compatible entry for MDIO ethernet Phys 2014-03-20 17:10:28 -04:00
qca-qca7000-spi.txt Documentation: add Device tree bindings for QCA7000 2014-09-29 00:23:52 -04:00
samsung-sxgbe.txt Documentation: treewide: fix typos and grammar 2014-08-26 09:35:51 +02:00
sh_eth.txt net: sh_eth: Add r8a7794 support 2014-08-02 16:38:32 -07:00
smsc-lan91c111.txt DT: net: document Ethernet bindings in one place 2014-02-18 17:05:39 -05:00
smsc911x.txt DT: net: document Ethernet bindings in one place 2014-02-18 17:05:39 -05:00
socfpga-dwmac.txt net: stmmac: add fix_mac_speed support for socfpga 2014-08-22 12:33:48 -07:00
sti-dwmac.txt stmmac: dwmac-sti: review the glue-logic for STi4xx and STiD127 SoCs 2014-10-14 16:40:06 -04:00
stmmac.txt Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2014-10-07 21:16:26 -04:00
via-rhine.txt net: via-rhine: add OF bus binding 2014-04-23 15:24:06 -04:00
via-velocity.txt net: velocity: Add platform device support to VIA velocity driver 2013-05-20 13:40:39 -07:00