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

phy: zynqmp: Add support for sata and DP phy initialization

Browse Source 
DP is untested but just c&p from Linux driver. Sata is tested on kv260-revA
board which has SATA connector populated.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/d231610160e76a2ad1b4a163e0e8db0ddc4733e2.1644226590.git.michal.simek@xilinx.com
This commit is contained in:
Michal Simek 2022-02-07 10:36:32 +01:00
parent fac46bc446
commit 462f76bc00
1 changed files with 28 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
drivers/phy/phy-zynqmp.c
View File

@ -373,6 +373,29 @@ static void xpsgtr_bypass_scrambler_8b10b(struct xpsgtr_phy *gtr_phy)
xpsgtr_write_phy(gtr_phy, L0_TX_DIG_61, L0_TM_DISABLE_SCRAMBLE_ENCODER);
}
/* DP-specific initialization. */
static void xpsgtr_phy_init_dp(struct xpsgtr_phy *gtr_phy)
{
xpsgtr_write_phy(gtr_phy, L0_TXPMD_TM_45,
L0_TXPMD_TM_45_OVER_DP_MAIN |
L0_TXPMD_TM_45_ENABLE_DP_MAIN |
L0_TXPMD_TM_45_OVER_DP_POST1 |
L0_TXPMD_TM_45_OVER_DP_POST2 |
L0_TXPMD_TM_45_ENABLE_DP_POST2);
xpsgtr_write_phy(gtr_phy, L0_TX_ANA_TM_118,
L0_TX_ANA_TM_118_FORCE_17_0);
}
/* SATA-specific initialization. */
static void xpsgtr_phy_init_sata(struct xpsgtr_phy *gtr_phy)
{
struct xpsgtr_dev *gtr_dev = gtr_phy->dev;
xpsgtr_bypass_scrambler_8b10b(gtr_phy);
writel(gtr_phy->lane, gtr_dev->siou + SATA_CONTROL_OFFSET);
}
/* SGMII-specific initialization. */
static void xpsgtr_phy_init_sgmii(struct xpsgtr_phy *gtr_phy)
{
@ -427,9 +450,12 @@ static int xpsgtr_init(struct phy *x)
case ICM_PROTOCOL_SGMII:
xpsgtr_phy_init_sgmii(gtr_phy);
break;
case ICM_PROTOCOL_DP:
case ICM_PROTOCOL_SATA:
return -EINVAL;
xpsgtr_phy_init_sata(gtr_phy);
break;
case ICM_PROTOCOL_DP:
xpsgtr_phy_init_dp(gtr_phy);
break;
}
dev_dbg(gtr_dev->dev, "lane %u (type %u, protocol %u): init done\n",