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74d00a8c38
* properly format/comment all patches * merge debloat patches * merge Kconfig patches * merge swconfig patches * merge hotplug patches * drop 200-fix_localversion.patch - upstream * drop 222-arm_zimage_none.patch - unused * drop 252-mv_cesa_depends.patch - no longer required * drop 410-mtd-move-forward-declaration-of-struct-mtd_info.patch - unused * drop 661-fq_codel_keep_dropped_stats.patch - outdated * drop 702-phy_add_aneg_done_function.patch - upstream * drop 840-rtc7301.patch - unused * drop 841-rtc_pt7c4338.patch - upstream * drop 921-use_preinit_as_init.patch - unused * drop spio-gpio-old and gpio-mmc - unused Signed-off-by: John Crispin <john@phrozen.org>
42 lines
1.4 KiB
Diff
42 lines
1.4 KiB
Diff
From: Jon Mason <jon.mason@broadcom.com>
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Date: Fri, 4 Nov 2016 01:10:56 -0400
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Subject: [PATCH] net: phy: broadcom: add bcm54xx_auxctl_read
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Add a helper function to read the AUXCTL register for the BCM54xx. This
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mirrors the bcm54xx_auxctl_write function already present in the code.
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Signed-off-by: Jon Mason <jon.mason@broadcom.com>
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Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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--- a/drivers/net/phy/broadcom.c
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+++ b/drivers/net/phy/broadcom.c
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@@ -30,6 +30,16 @@ MODULE_DESCRIPTION("Broadcom PHY driver"
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MODULE_AUTHOR("Maciej W. Rozycki");
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MODULE_LICENSE("GPL");
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+static int bcm54xx_auxctl_read(struct phy_device *phydev, u16 regnum)
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+{
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+ /* The register must be written to both the Shadow Register Select and
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+ * the Shadow Read Register Selector
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+ */
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+ phy_write(phydev, MII_BCM54XX_AUX_CTL, regnum |
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+ regnum << MII_BCM54XX_AUXCTL_SHDWSEL_READ_SHIFT);
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+ return phy_read(phydev, MII_BCM54XX_AUX_CTL);
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+}
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+
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static int bcm54xx_auxctl_write(struct phy_device *phydev, u16 regnum, u16 val)
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{
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return phy_write(phydev, MII_BCM54XX_AUX_CTL, regnum | val);
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--- a/include/linux/brcmphy.h
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+++ b/include/linux/brcmphy.h
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@@ -110,6 +110,7 @@
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#define MII_BCM54XX_AUXCTL_MISC_FORCE_AMDIX 0x0200
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#define MII_BCM54XX_AUXCTL_MISC_RDSEL_MISC 0x7000
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#define MII_BCM54XX_AUXCTL_SHDWSEL_MISC 0x0007
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+#define MII_BCM54XX_AUXCTL_SHDWSEL_READ_SHIFT 12
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#define MII_BCM54XX_AUXCTL_SHDWSEL_MASK 0x0007
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