UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

ARM: imx6q: remove clk-out fixup for the Atheros AR8031 and AR8035 PHYs 

This configuration should be set over device tree.

If this patch breaks network functionality on your system, enable the
AT803X_PHY driver and set following device tree property in the PHY
node:

    qca,clk-out-frequency = <125000000>;

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Oleksij Rempel 2021-05-11 06:37:32 +02:00 committed by Shawn Guo
parent 4d3b70d980
commit f5d9aa79df
1 changed files with 0 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
arch/arm/mach-imx/mach-imx6q.c
View File

@ -68,25 +68,6 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_PLX, 0x8609, ventana_pciesw_early_fixup);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_PLX, 0x8606, ventana_pciesw_early_fixup); DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_PLX, 0x8606, ventana_pciesw_early_fixup);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_PLX, 0x8604, ventana_pciesw_early_fixup); DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_PLX, 0x8604, ventana_pciesw_early_fixup);
static int ar8031_phy_fixup(struct phy_device *dev)
{
u16 val;
/* To enable AR8031 output a 125MHz clk from CLK_25M */
phy_write(dev, 0xd, 0x7);
phy_write(dev, 0xe, 0x8016);
phy_write(dev, 0xd, 0x4007);
val = phy_read(dev, 0xe);
val &= 0xffe3;
val |= 0x18;
phy_write(dev, 0xe, val);
return 0;
}
#define PHY_ID_AR8031 0x004dd074
static int ar8035_phy_fixup(struct phy_device *dev) static int ar8035_phy_fixup(struct phy_device *dev)
{ {
u16 val; u16 val;
@ -101,15 +82,6 @@ static int ar8035_phy_fixup(struct phy_device *dev)
val = phy_read(dev, 0xe); val = phy_read(dev, 0xe);
phy_write(dev, 0xe, val & ~(1 << 8)); phy_write(dev, 0xe, val & ~(1 << 8));
/*
* Enable 125MHz clock from CLK_25M on the AR8031. This
* is fed in to the IMX6 on the ENET_REF_CLK (V22) pad.
* Also, introduce a tx clock delay.
*
* This is the same as is the AR8031 fixup.
*/
ar8031_phy_fixup(dev);
return 0; return 0;
} }
@ -120,8 +92,6 @@ static void __init imx6q_enet_phy_init(void)
if (IS_BUILTIN(CONFIG_PHYLIB)) { if (IS_BUILTIN(CONFIG_PHYLIB)) {
phy_register_fixup_for_uid(PHY_ID_KSZ9021, MICREL_PHY_ID_MASK, phy_register_fixup_for_uid(PHY_ID_KSZ9021, MICREL_PHY_ID_MASK,
ksz9021rn_phy_fixup); ksz9021rn_phy_fixup);
phy_register_fixup_for_uid(PHY_ID_AR8031, 0xffffffef,
ar8031_phy_fixup);
phy_register_fixup_for_uid(PHY_ID_AR8035, 0xffffffef, phy_register_fixup_for_uid(PHY_ID_AR8035, 0xffffffef,
ar8035_phy_fixup); ar8035_phy_fixup);
} }