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ath79: ag71xx: assert a switch reset if defined in dts.

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Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
This commit is contained in:
Chuanhong Guo 2018-07-24 21:19:04 +08:00 committed by John Crispin
parent a5fa6b3825
commit f593020a28
1 changed files with 9 additions and 0 deletions
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9
target/linux/ath79/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_ar7240.c
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@ -1218,6 +1218,7 @@ ag71xx_ar7240_probe(struct mdio_device *mdiodev)
struct mii_bus *mii = mdiodev->bus;
struct ar7240sw *as;
struct switch_dev *swdev;
struct reset_control *switch_reset;
u32 ctrl;
int phy_if_mode, err, i;
@ -1231,6 +1232,14 @@ ag71xx_ar7240_probe(struct mdio_device *mdiodev)
swdev = &as->swdev;
switch_reset = devm_reset_control_get_optional(&mdiodev->dev, "switch");
if (switch_reset) {
reset_control_assert(switch_reset);
msleep(50);
reset_control_deassert(switch_reset);
msleep(200);
}
ctrl = ar7240sw_reg_read(mii, AR7240_REG_MASK_CTRL);
as->ver = (ctrl >> AR7240_MASK_CTRL_VERSION_S) &
AR7240_MASK_CTRL_VERSION_M;