Module Name:    src
Committed By:   skrll
Date:           Thu Mar 26 22:00:45 UTC 2015

Modified Files:
        src/sys/arch/arm/omap: if_cpsw.c

Log Message:
Fixes from PR/49622

- Use bit definitions from the header instead of magic numbers
- Remove the 'BYPASS' bit (4), otherwise all the careful setup
  of the ALE is futile - the BYPASS bit is described in the
  AM3358 datasheet as "When in bypass mode, all CPGMAC_SL
  received packets are forwarded only to the host port (port 0)"
  so effectively it's a promiscuous enable
- During cpsw_stop the MISC interrupts were being left enabled
- Remove unnecessary cpi assignment before loop.


To generate a diff of this commit:
cvs rdiff -u -r1.10 -r1.11 src/sys/arch/arm/omap/if_cpsw.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/sys/arch/arm/omap/if_cpsw.c
diff -u src/sys/arch/arm/omap/if_cpsw.c:1.10 src/sys/arch/arm/omap/if_cpsw.c:1.11
--- src/sys/arch/arm/omap/if_cpsw.c:1.10	Fri Mar 13 08:56:35 2015
+++ src/sys/arch/arm/omap/if_cpsw.c	Thu Mar 26 22:00:45 2015
@@ -1,4 +1,4 @@
-/*	$NetBSD: if_cpsw.c,v 1.10 2015/03/13 08:56:35 skrll Exp $	*/
+/*	$NetBSD: if_cpsw.c,v 1.11 2015/03/26 22:00:45 skrll Exp $	*/
 
 /*
  * Copyright (c) 2013 Jonathan A. Kollasch
@@ -53,7 +53,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(1, "$NetBSD: if_cpsw.c,v 1.10 2015/03/13 08:56:35 skrll Exp $");
+__KERNEL_RCSID(1, "$NetBSD: if_cpsw.c,v 1.11 2015/03/26 22:00:45 skrll Exp $");
 
 #include <sys/param.h>
 #include <sys/bus.h>
@@ -881,8 +881,9 @@ cpsw_init(struct ifnet *ifp)
 	cpsw_write_4(sc, CPSW_SS_SOFT_RESET, 1);
 	while(cpsw_read_4(sc, CPSW_SS_SOFT_RESET) & 1);
 
-	/* Clear table (30) and enable ALE(31) and set passthrough (4) */
-	cpsw_write_4(sc, CPSW_ALE_CONTROL, (3 << 30) | 0x10);
+	/* Clear table and enable ALE */
+	cpsw_write_4(sc, CPSW_ALE_CONTROL,
+	    ALECTL_ENABLE_ALE | ALECTL_CLEAR_TABLE);
 
 	/* Reset and init Sliver port 1 and 2 */
 	for (i = 0; i < CPSW_ETH_PORTS; i++) {
@@ -1023,7 +1024,7 @@ cpsw_stop(struct ifnet *ifp, int disable
 	cpsw_write_4(sc, CPSW_CPDMA_RX_INTMASK_CLEAR, 1);
 	cpsw_write_4(sc, CPSW_WR_C_TX_EN(0), 0x0);
 	cpsw_write_4(sc, CPSW_WR_C_RX_EN(0), 0x0);
-	cpsw_write_4(sc, CPSW_WR_C_MISC_EN(0), 0x1F);
+	cpsw_write_4(sc, CPSW_WR_C_MISC_EN(0), 0x0);
 
 	cpsw_write_4(sc, CPSW_CPDMA_TX_TEARDOWN, 0);
 	cpsw_write_4(sc, CPSW_CPDMA_RX_TEARDOWN, 0);
@@ -1213,14 +1214,13 @@ cpsw_txintr(void *arg)
 	tx0_cp = cpsw_read_4(sc, CPSW_CPDMA_TX_CP(0));
 
 	if (tx0_cp == 0xfffffffc) {
+		/* Teardown, ack it */
 		cpsw_write_4(sc, CPSW_CPDMA_TX_CP(0), 0xfffffffc);
 		cpsw_write_4(sc, CPSW_CPDMA_TX_HDP(0), 0);
 		sc->sc_txrun = false;
 		return 0;
 	}
 
-	cpi = (tx0_cp - sc->sc_txdescs_pa) / sizeof(struct cpsw_cpdma_bd);
-
 	for (;;) {
 		tx0_cp = cpsw_read_4(sc, CPSW_CPDMA_TX_CP(0));
 		cpi = (tx0_cp - sc->sc_txdescs_pa) / sizeof(struct cpsw_cpdma_bd);

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