net: phy: bcm54811: Add LRE registers definitions

Add the definitions of LRE registers for Broadcom BCM5481x PHY

Signed-off-by: Kamil Horák (2N) <kamilh@axis.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/20240712150709.3134474-3-kamilh@axis.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/include/linux/brcmphy.h b/include/linux/brcmphy.h
index 1394ba302367058fdf58334b2baebf64f13fef9b..028b3e00378e3dc9f07362284b1e772fc044dc19 100644 (file)
--- a/include/linux/brcmphy.h
+++ b/include/linux/brcmphy.h
@@ -271,12 +271,100 @@
 #define BCM5482_SSD_SGMII_SLAVE_EN     0x0002  /* Slave mode enable */
 #define BCM5482_SSD_SGMII_SLAVE_AD     0x0001  /* Slave auto-detection */
 
+/* BroadR-Reach LRE Registers. */
+#define MII_BCM54XX_LRECR              0x00    /* LRE Control Register                    */
+#define MII_BCM54XX_LRESR              0x01    /* LRE Status Register                     */
+#define MII_BCM54XX_LREPHYSID1         0x02    /* LRE PHYS ID 1                           */
+#define MII_BCM54XX_LREPHYSID2         0x03    /* LRE PHYS ID 2                           */
+#define MII_BCM54XX_LREANAA            0x04    /* LDS Auto-Negotiation Advertised Ability */
+#define MII_BCM54XX_LREANAC            0x05    /* LDS Auto-Negotiation Advertised Control */
+#define MII_BCM54XX_LREANPT            0x06    /* LDS Ability Next Page Transmit          */
+#define MII_BCM54XX_LRELPA             0x07    /* LDS Link Partner Ability                */
+#define MII_BCM54XX_LRELPNPM           0x08    /* LDS Link Partner Next Page Message      */
+#define MII_BCM54XX_LRELPNPC           0x09    /* LDS Link Partner Next Page Control      */
+#define MII_BCM54XX_LRELDSE            0x0a    /* LDS Expansion Register                  */
+#define MII_BCM54XX_LREES              0x0f    /* LRE Extended Status                     */
+
+/* LRE control register. */
+#define LRECR_RESET                    0x8000  /* Reset to default state      */
+#define LRECR_LOOPBACK                 0x4000  /* Internal Loopback           */
+#define LRECR_LDSRES                   0x2000  /* Restart LDS Process         */
+#define LRECR_LDSEN                    0x1000  /* LDS Enable                  */
+#define LRECR_PDOWN                    0x0800  /* Enable low power state      */
+#define LRECR_ISOLATE                  0x0400  /* Isolate data paths from MII */
+#define LRECR_SPEED100                 0x0200  /* Select 100 Mbps             */
+#define LRECR_SPEED10                  0x0000  /* Select 10 Mbps              */
+#define LRECR_4PAIRS                   0x0020  /* Select 4 Pairs              */
+#define LRECR_2PAIRS                   0x0010  /* Select 2 Pairs              */
+#define LRECR_1PAIR                    0x0000  /* Select 1 Pair               */
+#define LRECR_MASTER                   0x0008  /* Force Master when LDS disabled */
+#define LRECR_SLAVE                    0x0000  /* Force Slave when LDS disabled  */
+
+/* LRE status register. */
+#define LRESR_100_1PAIR                        0x2000  /* Can do 100Mbps 1 Pair       */
+#define LRESR_100_4PAIR                        0x1000  /* Can do 100Mbps 4 Pairs      */
+#define LRESR_100_2PAIR                        0x0800  /* Can do 100Mbps 2 Pairs      */
+#define LRESR_10_2PAIR                 0x0400  /* Can do 10Mbps 2 Pairs       */
+#define LRESR_10_1PAIR                 0x0200  /* Can do 10Mbps 1 Pair        */
+#define LRESR_ESTATEN                  0x0100  /* Extended Status in R15      */
+#define LRESR_RESV                     0x0080  /* Unused...                   */
+#define LRESR_MFPS                     0x0040  /* Can suppress Management Frames Preamble */
+#define LRESR_LDSCOMPLETE              0x0020  /* LDS Auto-negotiation complete */
+#define LRESR_8023                     0x0010  /* Has IEEE 802.3 Support      */
+#define LRESR_LDSABILITY               0x0008  /* LDS auto-negotiation capable */
+#define LRESR_LSTATUS                  0x0004  /* Link status                 */
+#define LRESR_JCD                      0x0002  /* Jabber detected             */
+#define LRESR_ERCAP                    0x0001  /* Ext-reg capability          */
+
+/* LDS Auto-Negotiation Advertised Ability. */
+#define LREANAA_PAUSE_ASYM             0x8000  /* Can pause asymmetrically    */
+#define LREANAA_PAUSE                  0x4000  /* Can pause                   */
+#define LREANAA_100_1PAIR              0x0020  /* Can do 100Mbps 1 Pair       */
+#define LREANAA_100_4PAIR              0x0010  /* Can do 100Mbps 4 Pair       */
+#define LREANAA_100_2PAIR              0x0008  /* Can do 100Mbps 2 Pair       */
+#define LREANAA_10_2PAIR               0x0004  /* Can do 10Mbps 2 Pair        */
+#define LREANAA_10_1PAIR               0x0002  /* Can do 10Mbps 1 Pair        */
+
+#define LRE_ADVERTISE_FULL             (LREANAA_100_1PAIR | LREANAA_100_4PAIR | \
+                                        LREANAA_100_2PAIR | LREANAA_10_2PAIR | \
+                                        LREANAA_10_1PAIR)
+
+#define LRE_ADVERTISE_ALL              LRE_ADVERTISE_FULL
+
+/* LDS Link Partner Ability. */
+#define LRELPA_PAUSE_ASYM              0x8000  /* Supports asymmetric pause   */
+#define LRELPA_PAUSE                   0x4000  /* Supports pause capability   */
+#define LRELPA_100_1PAIR               0x0020  /* 100Mbps 1 Pair capable      */
+#define LRELPA_100_4PAIR               0x0010  /* 100Mbps 4 Pair capable      */
+#define LRELPA_100_2PAIR               0x0008  /* 100Mbps 2 Pair capable      */
+#define LRELPA_10_2PAIR                        0x0004  /* 10Mbps 2 Pair capable       */
+#define LRELPA_10_1PAIR                        0x0002  /* 10Mbps 1 Pair capable       */
+
+/* LDS Expansion register. */
+#define LDSE_DOWNGRADE                 0x8000  /* Can do LDS Speed Downgrade  */
+#define LDSE_MASTER                    0x4000  /* Master / Slave              */
+#define LDSE_PAIRS_MASK                        0x3000  /* Pair Count Mask             */
+#define LDSE_PAIRS_SHIFT               12
+#define LDSE_4PAIRS                    (2 << LDSE_PAIRS_SHIFT) /* 4 Pairs Connection */
+#define LDSE_2PAIRS                    (1 << LDSE_PAIRS_SHIFT) /* 2 Pairs Connection */
+#define LDSE_1PAIR                     (0 << LDSE_PAIRS_SHIFT) /* 1 Pair  Connection */
+#define LDSE_CABLEN_MASK               0x0FFF  /* Cable Length Mask           */
+
 /* BCM54810 Registers */
 #define BCM54810_EXP_BROADREACH_LRE_MISC_CTL   (MII_BCM54XX_EXP_SEL_ER + 0x90)
 #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)
 
+/* BCM54811 Registers */
+#define BCM54811_EXP_BROADREACH_LRE_OVERLAY_CTL        (MII_BCM54XX_EXP_SEL_ER + 0x9A)
+/* Access Control Override Enable */
+#define BCM54811_EXP_BROADREACH_LRE_OVERLAY_CTL_EN             BIT(15)
+/* Access Control Override Value */
+#define BCM54811_EXP_BROADREACH_LRE_OVERLAY_CTL_OVERRIDE_VAL   BIT(14)
+/* Access Control Value */
+#define BCM54811_EXP_BROADREACH_LRE_OVERLAY_CTL_VAL            BIT(13)
+
 /* BCM54612E Registers */
 #define BCM54612E_EXP_SPARE0           (MII_BCM54XX_EXP_SEL_ETC + 0x34)
 #define BCM54612E_LED4_CLK125OUT_EN    (1 << 1)