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.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

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)