leandrof/u-boot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

phy: marvell: a3700: Use comphy_mux on Armada 37xx.

Browse Source 
Lane 0 supports SGMII1 and USB3.
Lane 1 supports SGMII0 and PEX0.
Lane 2 supports SATA0 and USB3.

This is needed for Armada 37xx.

This introduces new device tree bindings. AFAIK there is currently no
driver for Armada 37xx comphy in Linux. When such a driver will be
pushed into Linux, this will need to be rewritten accordingly.

Signed-off-by: Marek Behun <marek.behun@nic.cz>
Signed-off-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Marek Behún 2018-04-24 17:21:23 +02:00 committed by Stefan Roese
parent 3282a3e75f
commit 22f418935b
2 changed files with 39 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
arch/arm/dts/armada-37xx.dtsi
View File

@ -290,8 +290,9 @@
compatible = "marvell,mvebu-comphy", "marvell,comphy-armada-3700";
reg = <0x18300 0x28>,
<0x1f300 0x3d000>;
mux-bitcount = <1>;
max-lanes = <2>;
mux-bitcount = <4>;
mux-lane-order = <1 0 2>;
max-lanes = <3>;
};
};

36
drivers/phy/marvell/comphy_a3700.c
View File

@ -13,6 +13,38 @@
DECLARE_GLOBAL_DATA_PTR;
struct comphy_mux_data a3700_comphy_mux_data[] = {
/* Lane 0 */
{
4,
{
{ PHY_TYPE_UNCONNECTED, 0x0 },
{ PHY_TYPE_SGMII1, 0x0 },
{ PHY_TYPE_USB3_HOST0, 0x1 },
{ PHY_TYPE_USB3_DEVICE, 0x1 }
}
},
/* Lane 1 */
{
3,
{
{ PHY_TYPE_UNCONNECTED, 0x0},
{ PHY_TYPE_SGMII0, 0x0},
{ PHY_TYPE_PEX0, 0x1}
}
},
/* Lane 2 */
{
4,
{
{ PHY_TYPE_UNCONNECTED, 0x0},
{ PHY_TYPE_SATA0, 0x0},
{ PHY_TYPE_USB3_HOST0, 0x1},
{ PHY_TYPE_USB3_DEVICE, 0x1}
}
},
};
struct sgmii_phy_init_data_fix {
u16 addr;
u16 value;
@ -932,6 +964,10 @@ int comphy_a3700_init(struct chip_serdes_phy_config *chip_cfg,
debug_enter();
/* Initialize PHY mux */
chip_cfg->mux_data = a3700_comphy_mux_data;
comphy_mux_init(chip_cfg, serdes_map, COMPHY_SEL_ADDR);
for (lane = 0, comphy_map = serdes_map; lane < comphy_max_count;
lane++, comphy_map++) {
debug("Initialize serdes number %d\n", lane);