Commit 833c173e authored by Justin Chen's avatar Justin Chen Committed by Vinod Koul
Browse files

phy: usb: Disable phy auto-suspend 



The BDC block requires the PLL lock in order to grab the PLL clock.
The phy auto-suspend feature turns off the phy when nothing is attached
leading to the PLL to not lock. This leads the BDC block to grab the AUX
clock instead of the PLL clock. This is not ideal, so lets turn this
feature off.

Signed-off-by: default avatarJustin Chen <justinpopo6@gmail.com>
Acked-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/1665005418-15807-5-git-send-email-justinpopo6@gmail.com


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent 7e81153d

drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c

+6 −0
Original line number Diff line number Diff line
@@ -62,6 +62,7 @@ 


/* Register definitions for the USB_PHY block in 7211b0 */

#define USB_PHY_PLL_CTL			0x00

#define   USB_PHY_PLL_CTL_PLL_SUSPEND_MASK		BIT(27)

#define   USB_PHY_PLL_CTL_PLL_RESETB_MASK		BIT(30)

#define USB_PHY_PLL_LDO_CTL		0x08

#define   USB_PHY_PLL_LDO_CTL_AFE_BG_PWRDWNB_MASK	BIT(0)
@@ -259,6 +260,11 @@ static void usb_init_common_7211b0(struct brcm_usb_init_params *params) 
		brcm_usb_writel(reg, usb_phy + USB_PHY_UTMI_CTL_1);

	}



	/* Disable PLL auto suspend */

	reg = brcm_usb_readl(usb_phy + USB_PHY_PLL_CTL);

	reg |= USB_PHY_PLL_CTL_PLL_SUSPEND_MASK;

	brcm_usb_writel(reg, usb_phy + USB_PHY_PLL_CTL);



	/* Init the PHY */

	reg = USB_PHY_PLL_LDO_CTL_AFE_CORERDY_MASK |

		USB_PHY_PLL_LDO_CTL_AFE_LDO_PWRDWNB_MASK |