From 819ca38fa70da85a14b4328d1511146e6c59eb32 Mon Sep 17 00:00:00 2001 From: Aaron Wu Date: Wed, 23 Nov 2011 11:23:56 +0800 Subject: [PATCH] blackfin: Initialize the EMAC VLAN with proper default value EMAC_VLANx regs is not properly initiallized in u-boot, once it's overwrite in the kernel when DSA enabled, hot reset will lead to bringing up EMAC fail in u-boot. Signed-off-by: Aaron Wu Signed-off-by: Sonic Zhang --- arch/blackfin/include/asm/mach-common/bits/emac.h | 3 +++ drivers/net/bfin_mac.c | 2 ++ 2 files changed, 5 insertions(+) diff --git a/arch/blackfin/include/asm/mach-common/bits/emac.h b/arch/blackfin/include/asm/mach-common/bits/emac.h index 7a43bbb1a3..4c9bc9dc57 100644 --- a/arch/blackfin/include/asm/mach-common/bits/emac.h +++ b/arch/blackfin/include/asm/mach-common/bits/emac.h @@ -217,4 +217,7 @@ #define TX_GE1024_CNT 0x00200000 /* 1024-Max-Byte TX Frames Sent */ #define TX_ABORT_CNT 0x00400000 /* TX Frames Aborted */ +/*default value for EMAC_VLANx reg*/ +#define EMAC_VLANX_DEF_VAL 0xFFFF + #endif diff --git a/drivers/net/bfin_mac.c b/drivers/net/bfin_mac.c index 0ffd59d497..42e208cfb6 100644 --- a/drivers/net/bfin_mac.c +++ b/drivers/net/bfin_mac.c @@ -259,6 +259,8 @@ static int bfin_miiphy_init(struct eth_device *dev, int *opmode) *opmode = 0; bfin_write_EMAC_MMC_CTL(RSTC | CROLL); + bfin_write_EMAC_VLAN1(EMAC_VLANX_DEF_VAL); + bfin_write_EMAC_VLAN2(EMAC_VLANX_DEF_VAL); /* Initialize the TX DMA channel registers */ bfin_write_DMA2_X_COUNT(0); -- 2.25.1