Merge commit '87ddedd'

1 files changed, 439 insertions, 0 deletions

diff --git a/drivers/net/bcm570x_autoneg.c b/drivers/net/bcm570x_autoneg.c
new file mode 100644
index 000000000..9023796aa
--- /dev/null
+++ b/drivers/net/bcm570x_autoneg.c
@@ -0,0 +1,439 @@
+/******************************************************************************/
+/*                                                                            */
+/* Broadcom BCM5700 Linux Network Driver, Copyright (c) 2001 Broadcom         */
+/* Corporation.                                                               */
+/* All rights reserved.                                                       */
+/*                                                                            */
+/* This program is free software; you can redistribute it and/or modify       */
+/* it under the terms of the GNU General Public License as published by       */
+/* the Free Software Foundation, located in the file LICENSE.                 */
+/*                                                                            */
+/* History:                                                                   */
+/******************************************************************************/
+#if !defined(CONFIG_NET_MULTI)
+#if INCLUDE_TBI_SUPPORT
+#include "bcm570x_autoneg.h"
+#include "bcm570x_mm.h"
+
+
+/******************************************************************************/
+/* Description:                                                               */
+/*                                                                            */
+/* Return:                                                                    */
+/******************************************************************************/
+void
+MM_AnTxConfig(
+    PAN_STATE_INFO pAnInfo)
+{
+    PLM_DEVICE_BLOCK pDevice;
+
+    pDevice = (PLM_DEVICE_BLOCK) pAnInfo->pContext;
+
+    REG_WR(pDevice, MacCtrl.TxAutoNeg, (LM_UINT32) pAnInfo->TxConfig.AsUSHORT);
+
+    pDevice->MacMode |= MAC_MODE_SEND_CONFIGS;
+    REG_WR(pDevice, MacCtrl.Mode, pDevice->MacMode);
+}
+
+
+/******************************************************************************/
+/* Description:                                                               */
+/*                                                                            */
+/* Return:                                                                    */
+/******************************************************************************/
+void
+MM_AnTxIdle(
+    PAN_STATE_INFO pAnInfo)
+{
+    PLM_DEVICE_BLOCK pDevice;
+
+    pDevice = (PLM_DEVICE_BLOCK) pAnInfo->pContext;
+
+    pDevice->MacMode &= ~MAC_MODE_SEND_CONFIGS;
+    REG_WR(pDevice, MacCtrl.Mode, pDevice->MacMode);
+}
+
+
+/******************************************************************************/
+/* Description:                                                               */
+/*                                                                            */
+/* Return:                                                                    */
+/******************************************************************************/
+char
+MM_AnRxConfig(
+    PAN_STATE_INFO pAnInfo,
+    unsigned short *pRxConfig)
+{
+    PLM_DEVICE_BLOCK pDevice;
+    LM_UINT32 Value32;
+    char Retcode;
+
+    Retcode = AN_FALSE;
+
+    pDevice = (PLM_DEVICE_BLOCK) pAnInfo->pContext;
+
+    Value32 = REG_RD(pDevice, MacCtrl.Status);
+    if(Value32 & MAC_STATUS_RECEIVING_CFG)
+    {
+	Value32 = REG_RD(pDevice, MacCtrl.RxAutoNeg);
+	*pRxConfig = (unsigned short) Value32;
+
+	Retcode = AN_TRUE;
+    }
+
+    return Retcode;
+}
+
+
+/******************************************************************************/
+/* Description:                                                               */
+/*                                                                            */
+/* Return:                                                                    */
+/******************************************************************************/
+void
+AutonegInit(
+    PAN_STATE_INFO pAnInfo)
+{
+    unsigned long j;
+
+    for(j = 0; j < sizeof(AN_STATE_INFO); j++)
+    {
+	((unsigned char *) pAnInfo)[j] = 0;
+    }
+
+    /* Initialize the default advertisement register. */
+    pAnInfo->mr_adv_full_duplex = 1;
+    pAnInfo->mr_adv_sym_pause = 1;
+    pAnInfo->mr_adv_asym_pause = 1;
+    pAnInfo->mr_an_enable = 1;
+}
+
+
+/******************************************************************************/
+/* Description:                                                               */
+/*                                                                            */
+/* Return:                                                                    */
+/******************************************************************************/
+AUTONEG_STATUS
+Autoneg8023z(
+    PAN_STATE_INFO pAnInfo)
+{
+    unsigned short RxConfig;
+    unsigned long Delta_us;
+    AUTONEG_STATUS AnRet;
+
+    /* Get the current time. */
+    if(pAnInfo->State == AN_STATE_UNKNOWN)
+    {
+	pAnInfo->RxConfig.AsUSHORT = 0;
+	pAnInfo->CurrentTime_us = 0;
+	pAnInfo->LinkTime_us = 0;
+	pAnInfo->AbilityMatchCfg = 0;
+	pAnInfo->AbilityMatchCnt = 0;
+	pAnInfo->AbilityMatch = AN_FALSE;
+	pAnInfo->IdleMatch = AN_FALSE;
+	pAnInfo->AckMatch = AN_FALSE;
+    }
+
+    /* Increment the timer tick.  This function is called every microsecon. */
+/*    pAnInfo->CurrentTime_us++; */
+
+    /* Set the AbilityMatch, IdleMatch, and AckMatch flags if their */
+    /* corresponding conditions are satisfied. */
+    if(MM_AnRxConfig(pAnInfo, &RxConfig))
+    {
+	if(RxConfig != pAnInfo->AbilityMatchCfg)
+	{
+	    pAnInfo->AbilityMatchCfg = RxConfig;
+	    pAnInfo->AbilityMatch = AN_FALSE;
+	    pAnInfo->AbilityMatchCnt = 0;
+	}
+	else
+	{
+	    pAnInfo->AbilityMatchCnt++;
+	    if(pAnInfo->AbilityMatchCnt > 1)
+	    {
+		pAnInfo->AbilityMatch = AN_TRUE;
+		pAnInfo->AbilityMatchCfg = RxConfig;
+	    }
+	}
+
+	if(RxConfig & AN_CONFIG_ACK)
+	{
+	    pAnInfo->AckMatch = AN_TRUE;
+	}
+	else
+	{
+	    pAnInfo->AckMatch = AN_FALSE;
+	}
+
+	pAnInfo->IdleMatch = AN_FALSE;
+    }
+    else
+    {
+	pAnInfo->IdleMatch = AN_TRUE;
+
+	pAnInfo->AbilityMatchCfg = 0;
+	pAnInfo->AbilityMatchCnt = 0;
+	pAnInfo->AbilityMatch = AN_FALSE;
+	pAnInfo->AckMatch = AN_FALSE;
+
+	RxConfig = 0;
+    }
+
+    /* Save the last Config. */
+    pAnInfo->RxConfig.AsUSHORT = RxConfig;
+
+    /* Default return code. */
+    AnRet = AUTONEG_STATUS_OK;
+
+    /* Autoneg state machine as defined in 802.3z section 37.3.1.5. */
+    switch(pAnInfo->State)
+    {
+	case AN_STATE_UNKNOWN:
+	    if(pAnInfo->mr_an_enable || pAnInfo->mr_restart_an)
+	    {
+		pAnInfo->CurrentTime_us = 0;
+		pAnInfo->State = AN_STATE_AN_ENABLE;
+	    }
+
+	    /* Fall through.*/
+
+	case AN_STATE_AN_ENABLE:
+	    pAnInfo->mr_an_complete = AN_FALSE;
+	    pAnInfo->mr_page_rx = AN_FALSE;
+
+	    if(pAnInfo->mr_an_enable)
+	    {
+		pAnInfo->LinkTime_us = 0;
+		pAnInfo->AbilityMatchCfg = 0;
+		pAnInfo->AbilityMatchCnt = 0;
+		pAnInfo->AbilityMatch = AN_FALSE;
+		pAnInfo->IdleMatch = AN_FALSE;
+		pAnInfo->AckMatch = AN_FALSE;
+
+		pAnInfo->State = AN_STATE_AN_RESTART_INIT;
+	    }
+	    else
+	    {
+		pAnInfo->State = AN_STATE_DISABLE_LINK_OK;
+	    }
+	    break;
+
+	case AN_STATE_AN_RESTART_INIT:
+	    pAnInfo->LinkTime_us = pAnInfo->CurrentTime_us;
+	    pAnInfo->mr_np_loaded = AN_FALSE;
+
+	    pAnInfo->TxConfig.AsUSHORT = 0;
+	    MM_AnTxConfig(pAnInfo);
+
+	    AnRet = AUTONEG_STATUS_TIMER_ENABLED;
+
+	    pAnInfo->State = AN_STATE_AN_RESTART;
+
+	    /* Fall through.*/
+
+	case AN_STATE_AN_RESTART:
+	    /* Get the current time and compute the delta with the saved */
+	    /* link timer. */
+	    Delta_us = pAnInfo->CurrentTime_us - pAnInfo->LinkTime_us;
+	    if(Delta_us > AN_LINK_TIMER_INTERVAL_US)
+	    {
+		pAnInfo->State = AN_STATE_ABILITY_DETECT_INIT;
+	    }
+	    else
+	    {
+		AnRet = AUTONEG_STATUS_TIMER_ENABLED;
+	    }
+	    break;
+
+	case AN_STATE_DISABLE_LINK_OK:
+	    AnRet = AUTONEG_STATUS_DONE;
+	    break;
+
+	case AN_STATE_ABILITY_DETECT_INIT:
+	    /* Note: in the state diagram, this variable is set to */
+	    /* mr_adv_ability<12>.  Is this right?. */
+	    pAnInfo->mr_toggle_tx = AN_FALSE;
+
+	    /* Send the config as advertised in the advertisement register. */
+	    pAnInfo->TxConfig.AsUSHORT = 0;
+	    pAnInfo->TxConfig.D5_FD = pAnInfo->mr_adv_full_duplex;
+	    pAnInfo->TxConfig.D6_HD = pAnInfo->mr_adv_half_duplex;
+	    pAnInfo->TxConfig.D7_PS1 = pAnInfo->mr_adv_sym_pause;
+	    pAnInfo->TxConfig.D8_PS2 = pAnInfo->mr_adv_asym_pause;
+	    pAnInfo->TxConfig.D12_RF1 = pAnInfo->mr_adv_remote_fault1;
+	    pAnInfo->TxConfig.D13_RF2 = pAnInfo->mr_adv_remote_fault2;
+	    pAnInfo->TxConfig.D15_NP = pAnInfo->mr_adv_next_page;
+
+	    MM_AnTxConfig(pAnInfo);
+
+	    pAnInfo->State = AN_STATE_ABILITY_DETECT;
+
+	    break;
+
+	case AN_STATE_ABILITY_DETECT:
+	    if(pAnInfo->AbilityMatch == AN_TRUE &&
+		pAnInfo->RxConfig.AsUSHORT != 0)
+	    {
+		pAnInfo->State = AN_STATE_ACK_DETECT_INIT;
+	    }
+
+	    break;
+
+	case AN_STATE_ACK_DETECT_INIT:
+	    pAnInfo->TxConfig.D14_ACK = 1;
+	    MM_AnTxConfig(pAnInfo);
+
+	    pAnInfo->State = AN_STATE_ACK_DETECT;
+
+	    /* Fall through. */
+
+	case AN_STATE_ACK_DETECT:
+	    if(pAnInfo->AckMatch == AN_TRUE)
+	    {
+		if((pAnInfo->RxConfig.AsUSHORT & ~AN_CONFIG_ACK) ==
+		    (pAnInfo->AbilityMatchCfg & ~AN_CONFIG_ACK))
+		{
+		    pAnInfo->State = AN_STATE_COMPLETE_ACK_INIT;
+		}
+		else
+		{
+		    pAnInfo->State = AN_STATE_AN_ENABLE;
+		}
+	    }
+	    else if(pAnInfo->AbilityMatch == AN_TRUE &&
+		pAnInfo->RxConfig.AsUSHORT == 0)
+	    {
+		pAnInfo->State = AN_STATE_AN_ENABLE;
+	    }
+
+	    break;
+
+	case AN_STATE_COMPLETE_ACK_INIT:
+	    /* Make sure invalid bits are not set. */
+	    if(pAnInfo->RxConfig.bits.D0 || pAnInfo->RxConfig.bits.D1 ||
+		pAnInfo->RxConfig.bits.D2 || pAnInfo->RxConfig.bits.D3 ||
+		pAnInfo->RxConfig.bits.D4 || pAnInfo->RxConfig.bits.D9 ||
+		pAnInfo->RxConfig.bits.D10 || pAnInfo->RxConfig.bits.D11)
+	    {
+		AnRet = AUTONEG_STATUS_FAILED;
+		break;
+	    }
+
+	    /* Set up the link partner advertisement register. */
+	    pAnInfo->mr_lp_adv_full_duplex = pAnInfo->RxConfig.D5_FD;
+	    pAnInfo->mr_lp_adv_half_duplex = pAnInfo->RxConfig.D6_HD;
+	    pAnInfo->mr_lp_adv_sym_pause = pAnInfo->RxConfig.D7_PS1;
+	    pAnInfo->mr_lp_adv_asym_pause = pAnInfo->RxConfig.D8_PS2;
+	    pAnInfo->mr_lp_adv_remote_fault1 = pAnInfo->RxConfig.D12_RF1;
+	    pAnInfo->mr_lp_adv_remote_fault2 = pAnInfo->RxConfig.D13_RF2;
+	    pAnInfo->mr_lp_adv_next_page = pAnInfo->RxConfig.D15_NP;
+
+	    pAnInfo->LinkTime_us = pAnInfo->CurrentTime_us;
+
+	    pAnInfo->mr_toggle_tx = !pAnInfo->mr_toggle_tx;
+	    pAnInfo->mr_toggle_rx = pAnInfo->RxConfig.bits.D11;
+	    pAnInfo->mr_np_rx = pAnInfo->RxConfig.D15_NP;
+	    pAnInfo->mr_page_rx = AN_TRUE;
+
+	    pAnInfo->State = AN_STATE_COMPLETE_ACK;
+	    AnRet = AUTONEG_STATUS_TIMER_ENABLED;
+
+	    break;
+
+	case AN_STATE_COMPLETE_ACK:
+	    if(pAnInfo->AbilityMatch == AN_TRUE &&
+		pAnInfo->RxConfig.AsUSHORT == 0)
+	    {
+		pAnInfo->State = AN_STATE_AN_ENABLE;
+		break;
+	    }
+
+	    Delta_us = pAnInfo->CurrentTime_us - pAnInfo->LinkTime_us;
+
+	    if(Delta_us > AN_LINK_TIMER_INTERVAL_US)
+	    {
+		if(pAnInfo->mr_adv_next_page == 0 ||
+		    pAnInfo->mr_lp_adv_next_page == 0)
+		{
+		    pAnInfo->State = AN_STATE_IDLE_DETECT_INIT;
+		}
+		else
+		{
+		    if(pAnInfo->TxConfig.bits.D15 == 0 &&
+			pAnInfo->mr_np_rx == 0)
+		    {
+			pAnInfo->State = AN_STATE_IDLE_DETECT_INIT;
+		    }
+		    else
+		    {
+			AnRet = AUTONEG_STATUS_FAILED;
+		    }
+		}
+	    }
+
+	    break;
+
+	case AN_STATE_IDLE_DETECT_INIT:
+	    pAnInfo->LinkTime_us = pAnInfo->CurrentTime_us;
+
+	    MM_AnTxIdle(pAnInfo);
+
+	    pAnInfo->State = AN_STATE_IDLE_DETECT;
+
+	    AnRet = AUTONEG_STATUS_TIMER_ENABLED;
+
+	    break;
+
+	case AN_STATE_IDLE_DETECT:
+	    if(pAnInfo->AbilityMatch == AN_TRUE &&
+		pAnInfo->RxConfig.AsUSHORT == 0)
+	    {
+		pAnInfo->State = AN_STATE_AN_ENABLE;
+		break;
+	    }
+
+	    Delta_us = pAnInfo->CurrentTime_us - pAnInfo->LinkTime_us;
+	    if(Delta_us > AN_LINK_TIMER_INTERVAL_US)
+	    {
+#if 0
+/*                if(pAnInfo->IdleMatch == AN_TRUE) */
+/*                { */
+#endif
+		    pAnInfo->State = AN_STATE_LINK_OK;
+#if 0
+/*                } */
+/*                else */
+/*                { */
+/*                    AnRet = AUTONEG_STATUS_FAILED; */
+/*                    break; */
+/*                } */
+#endif
+	    }
+
+	    break;
+
+	case AN_STATE_LINK_OK:
+	    pAnInfo->mr_an_complete = AN_TRUE;
+	    pAnInfo->mr_link_ok = AN_TRUE;
+	    AnRet = AUTONEG_STATUS_DONE;
+
+	    break;
+
+	case AN_STATE_NEXT_PAGE_WAIT_INIT:
+	    break;
+
+	case AN_STATE_NEXT_PAGE_WAIT:
+	    break;
+
+	default:
+	    AnRet = AUTONEG_STATUS_FAILED;
+	    break;
+    }
+
+    return AnRet;
+}
+#endif /* INCLUDE_TBI_SUPPORT */
+
+#endif /* !defined(CONFIG_NET_MULTI) */