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arm: mvebu: turris_mox: start blinking PHY LEDs when entering rescue

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Configure blinking on ethernet PHY LEDs on the MOX A board when entering
rescue mode via reset button.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Marek Behún 2021-06-07 16:34:48 +02:00 committed by Stefan Roese
parent ec3784d626
commit 45853413e2
1 changed files with 35 additions and 0 deletions
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35
board/CZ.NIC/turris_mox/turris_mox.c
View file

@ -377,6 +377,38 @@ int misc_init_r(void)
return 0;
}
static void mox_phy_modify(struct phy_device *phydev, int page, int reg,
u16 mask, u16 set)
{
int val;
val = phydev->drv->readext(phydev, MDIO_DEVAD_NONE, page, reg);
val &= ~mask;
val |= set;
phydev->drv->writeext(phydev, MDIO_DEVAD_NONE, page, reg, val);
}
static void mox_phy_leds_start_blinking(void)
{
struct phy_device *phydev;
struct mii_dev *bus;
bus = miiphy_get_dev_by_name("neta@30000");
if (!bus) {
printf("Cannot get MDIO bus device!\n");
return;
}
phydev = phy_find_by_mask(bus, BIT(1), PHY_INTERFACE_MODE_RGMII);
if (!phydev) {
printf("Cannot get ethernet PHY!\n");
return;
}
mox_phy_modify(phydev, 3, 0x12, 0x700, 0x400);
mox_phy_modify(phydev, 3, 0x10, 0xff, 0xbb);
}
static bool read_reset_button(void)
{
struct udevice *button, *led;
@ -424,6 +456,9 @@ static void handle_reset_button(void)
/* Ensure bootcmd_rescue is used by distroboot */
env_set("boot_targets", "rescue");
/* start blinking PHY LEDs */
mox_phy_leds_start_blinking();
printf("RESET button was pressed, overwriting boot_targets!\n");
} else {
/*