From 4f0794ff9616bbb5989e007ae79bb5cad7c1f8ea Mon Sep 17 00:00:00 2001
From: "Bjoern A. Zeeb" <bz@FreeBSD.org>
Date: Mon, 5 May 2008 18:42:17 +0000
Subject: [PATCH] Use a better approach to force the interrupt which should
 work for all cards/modes. In addition to the intr forcing added with rev.
 1.205 adopt the other places to use the same logic.

We need to exclude a few chips/revisions (5700, 5788) from using the
enhanced version and fall back to the old way as that is the only
method they support.

Tested by:	phk
Suggested by:	davidch, Broadcom (thanks a lot for the help!)
MFC after:	16 days
---
 sys/dev/bge/if_bge.c    | 27 +++++++++++++++++++++------
 sys/dev/bge/if_bgereg.h |  4 ++++
 2 files changed, 25 insertions(+), 6 deletions(-)

diff --git a/sys/dev/bge/if_bge.c b/sys/dev/bge/if_bge.c
index b0a7412a0dc0..daac89354357 100644
--- a/sys/dev/bge/if_bge.c
+++ b/sys/dev/bge/if_bge.c
@@ -2356,7 +2356,7 @@ bge_attach(device_t dev)
 {
 	struct ifnet *ifp;
 	struct bge_softc *sc;
-	uint32_t hwcfg = 0;
+	uint32_t hwcfg = 0, misccfg;
 	u_char eaddr[ETHER_ADDR_LEN];
 	int error, reg, rid, trys;
 
@@ -2446,6 +2446,16 @@ bge_attach(device_t dev)
 			sc->bge_flags |= BGE_FLAG_BER_BUG;
 	}
 
+
+	/*
+	 * We could possibly check for BCOM_DEVICEID_BCM5788 in bge_probe()
+	 * but I do not know the DEVICEID for the 5788M.
+	 */
+	misccfg = CSR_READ_4(sc, BGE_MISC_CFG) & BGE_MISCCFG_BOARD_ID;
+	if (misccfg == BGE_MISCCFG_BOARD_ID_5788 ||
+	    misccfg == BGE_MISCCFG_BOARD_ID_5788M)
+		sc->bge_flags |= BGE_FLAG_5788;
+
   	/*
 	 * Check if this is a PCI-X or PCI Express device.
   	 */
@@ -3410,7 +3420,11 @@ bge_tick(void *xsc)
 #endif
 		{
 		sc->bge_link_evt++;
-		BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_SET);
+		if (sc->bge_asicrev == BGE_ASICREV_BCM5700 ||
+		    sc->bge_flags & BGE_FLAG_5788)
+			BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_SET);
+		else
+			BGE_SETBIT(sc, BGE_HCC_MODE, BGE_HCCMODE_COAL_NOW);
 		}
 	}
 
@@ -3950,10 +3964,11 @@ bge_ifmedia_upd_locked(struct ifnet *ifp)
 	 * need to do this here if BGE_FLAG_TBI is set but as
 	 * we poll for fiber anyway it should not harm.
 	 */
-	BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_SET);
-#ifdef	notyet
-	BGE_SETBIT(sc, BGE_HCC_MODE, BGE_HCCMODE_COAL_NOW);
-#endif
+	if (sc->bge_asicrev == BGE_ASICREV_BCM5700 ||
+	    sc->bge_flags & BGE_FLAG_5788)
+		BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_SET);
+	else
+		BGE_SETBIT(sc, BGE_HCC_MODE, BGE_HCCMODE_COAL_NOW);
 
 	return (0);
 }
diff --git a/sys/dev/bge/if_bgereg.h b/sys/dev/bge/if_bgereg.h
index 01778d7d097a..3a02ffdac586 100644
--- a/sys/dev/bge/if_bgereg.h
+++ b/sys/dev/bge/if_bgereg.h
@@ -1776,6 +1776,9 @@
 /* Misc. config register */
 #define	BGE_MISCCFG_RESET_CORE_CLOCKS	0x00000001
 #define	BGE_MISCCFG_TIMER_PRESCALER	0x000000FE
+#define	BGE_MISCCFG_BOARD_ID		0x0001E000
+#define	BGE_MISCCFG_BOARD_ID_5788	0x00010000
+#define	BGE_MISCCFG_BOARD_ID_5788M	0x00018000
 #define	BGE_MISCCFG_EPHY_IDDQ		0x00200000
 
 #define	BGE_32BITTIME_66MHZ		(0x41 << 1)
@@ -2546,6 +2549,7 @@ struct bge_softc {
 #define	BGE_FLAG_ADJUST_TRIM	0x04000000
 #define	BGE_FLAG_CRC_BUG	0x08000000
 #define	BGE_FLAG_NO_EEPROM	0x10000000
+#define	BGE_FLAG_5788		0x20000000
 	uint32_t		bge_chipid;
 	uint8_t			bge_asicrev;
 	uint8_t			bge_chiprev;