Re: [PATCH net-next v2 3/3] net: phy: broadcom: Allow BCM54210E to configure APD
From: Vladimir Oltean <olteanv@gmail.com>
Date: 2021-02-13 10:43:55
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On Fri, Feb 12, 2021 at 07:46:32PM -0800, Florian Fainelli wrote:
BCM54210E/BCM50212E has been verified to work correctly with the auto-power down configuration done by bcm54xx_adjust_rxrefclk(), add it to the list of PHYs working. While we are at it, provide an appropriate name for the bit we are changing which disables the RXC and TXC during auto-power down when there is no energy on the cable. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> ---
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
quoted hunk ↗ jump to hunk
drivers/net/phy/broadcom.c | 8 +++++--- include/linux/brcmphy.h | 2 +- 2 files changed, 6 insertions(+), 4 deletions(-)diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c index 3ce266ab521b..91fbd26c809e 100644 --- a/drivers/net/phy/broadcom.c +++ b/drivers/net/phy/broadcom.c@@ -193,6 +193,7 @@ static void bcm54xx_adjust_rxrefclk(struct phy_device *phydev) if (BRCM_PHY_MODEL(phydev) != PHY_ID_BCM57780 && BRCM_PHY_MODEL(phydev) != PHY_ID_BCM50610 && BRCM_PHY_MODEL(phydev) != PHY_ID_BCM50610M && + BRCM_PHY_MODEL(phydev) != PHY_ID_BCM54210E && BRCM_PHY_MODEL(phydev) != PHY_ID_BCM54810 && BRCM_PHY_MODEL(phydev) != PHY_ID_BCM54811) return;@@ -227,9 +228,10 @@ static void bcm54xx_adjust_rxrefclk(struct phy_device *phydev) val |= BCM54XX_SHD_SCR3_DLLAPD_DIS; if (phydev->dev_flags & PHY_BRCM_DIS_TXCRXC_NOENRGY) { - if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54810 || - BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54811) - val |= BCM54810_SHD_SCR3_TRDDAPD; + if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54210E || + BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54810 || + BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54210E) + val |= BCM54XX_SHD_SCR3_RXCTXC_DIS; else val |= BCM54XX_SHD_SCR3_TRDDAPD; }diff --git a/include/linux/brcmphy.h b/include/linux/brcmphy.h index 844dcfe789a2..16597d3fa011 100644 --- a/include/linux/brcmphy.h +++ b/include/linux/brcmphy.h@@ -193,6 +193,7 @@ #define BCM54XX_SHD_SCR3_DEF_CLK125 0x0001 #define BCM54XX_SHD_SCR3_DLLAPD_DIS 0x0002 #define BCM54XX_SHD_SCR3_TRDDAPD 0x0004 +#define BCM54XX_SHD_SCR3_RXCTXC_DIS 0x0100
Curiously enough, my BCM5464R datasheet does say: The TXC and RXC outputs can be disabled during auto-power down by setting the “1000BASE-T/100BASE-TX/10BASE-T Spare Control 3 Register (Address 1Ch, Shadow Value 00101),” bit 8 =1. but when I go to the definition of the register, bit 8 is hidden. Odd. How can I ensure that the auto power down feature is doing something?
quoted hunk ↗ jump to hunk
/* 01010: Auto Power-Down */ #define BCM54XX_SHD_APD 0x0a@@ -253,7 +254,6 @@ #define BCM54810_EXP_BROADREACH_LRE_MISC_CTL_EN (1 << 0) #define BCM54810_SHD_CLK_CTL 0x3 #define BCM54810_SHD_CLK_CTL_GTXCLK_EN (1 << 9) -#define BCM54810_SHD_SCR3_TRDDAPD 0x0100 /* BCM54612E Registers */ #define BCM54612E_EXP_SPARE0 (MII_BCM54XX_EXP_SEL_ETC + 0x34)-- 2.25.1