1017 lines
31 KiB
C
1017 lines
31 KiB
C
/***********************************************************************
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*
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* Copyright (c) 2005 Freescale Semiconductor, Inc.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*
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* Description:
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* Ethernet interface for Tundra TSI108 bridge chip
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*
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***********************************************************************/
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#include <config.h>
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#if !defined(CONFIG_TSI108_ETH_NUM_PORTS) || (CONFIG_TSI108_ETH_NUM_PORTS > 2)
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#error "CONFIG_TSI108_ETH_NUM_PORTS must be defined as 1 or 2"
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#endif
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#include <common.h>
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#include <malloc.h>
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#include <net.h>
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#include <netdev.h>
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#include <asm/cache.h>
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#ifdef DEBUG
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#define TSI108_ETH_DEBUG 7
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#else
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#define TSI108_ETH_DEBUG 0
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#endif
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#if TSI108_ETH_DEBUG > 0
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#define debug_lev(lev, fmt, args...) \
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if (lev <= TSI108_ETH_DEBUG) \
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printf ("%s %d: " fmt, __FUNCTION__, __LINE__, ##args)
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#else
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#define debug_lev(lev, fmt, args...) do{}while(0)
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#endif
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#define RX_PRINT_ERRORS
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#define TX_PRINT_ERRORS
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#define ETH_BASE (CONFIG_SYS_TSI108_CSR_BASE + 0x6000)
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#define ETH_PORT_OFFSET 0x400
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#define __REG32(base, offset) (*((volatile u32 *)((char *)(base) + (offset))))
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#define reg_MAC_CONFIG_1(base) __REG32(base, 0x00000000)
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#define MAC_CONFIG_1_TX_ENABLE (0x00000001)
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#define MAC_CONFIG_1_SYNC_TX_ENABLE (0x00000002)
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#define MAC_CONFIG_1_RX_ENABLE (0x00000004)
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#define MAC_CONFIG_1_SYNC_RX_ENABLE (0x00000008)
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#define MAC_CONFIG_1_TX_FLOW_CONTROL (0x00000010)
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#define MAC_CONFIG_1_RX_FLOW_CONTROL (0x00000020)
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#define MAC_CONFIG_1_LOOP_BACK (0x00000100)
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#define MAC_CONFIG_1_RESET_TX_FUNCTION (0x00010000)
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#define MAC_CONFIG_1_RESET_RX_FUNCTION (0x00020000)
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#define MAC_CONFIG_1_RESET_TX_MAC (0x00040000)
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#define MAC_CONFIG_1_RESET_RX_MAC (0x00080000)
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#define MAC_CONFIG_1_SIM_RESET (0x40000000)
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#define MAC_CONFIG_1_SOFT_RESET (0x80000000)
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#define reg_MAC_CONFIG_2(base) __REG32(base, 0x00000004)
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#define MAC_CONFIG_2_FULL_DUPLEX (0x00000001)
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#define MAC_CONFIG_2_CRC_ENABLE (0x00000002)
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#define MAC_CONFIG_2_PAD_CRC (0x00000004)
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#define MAC_CONFIG_2_LENGTH_CHECK (0x00000010)
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#define MAC_CONFIG_2_HUGE_FRAME (0x00000020)
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#define MAC_CONFIG_2_INTERFACE_MODE(val) (((val) & 0x3) << 8)
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#define MAC_CONFIG_2_PREAMBLE_LENGTH(val) (((val) & 0xf) << 12)
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#define INTERFACE_MODE_NIBBLE 1 /* 10/100 Mb/s MII) */
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#define INTERFACE_MODE_BYTE 2 /* 1000 Mb/s GMII/TBI */
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#define reg_MAXIMUM_FRAME_LENGTH(base) __REG32(base, 0x00000010)
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#define reg_MII_MGMT_CONFIG(base) __REG32(base, 0x00000020)
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#define MII_MGMT_CONFIG_MGMT_CLOCK_SELECT(val) ((val) & 0x7)
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#define MII_MGMT_CONFIG_NO_PREAMBLE (0x00000010)
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#define MII_MGMT_CONFIG_SCAN_INCREMENT (0x00000020)
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#define MII_MGMT_CONFIG_RESET_MGMT (0x80000000)
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#define reg_MII_MGMT_COMMAND(base) __REG32(base, 0x00000024)
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#define MII_MGMT_COMMAND_READ_CYCLE (0x00000001)
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#define MII_MGMT_COMMAND_SCAN_CYCLE (0x00000002)
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#define reg_MII_MGMT_ADDRESS(base) __REG32(base, 0x00000028)
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#define reg_MII_MGMT_CONTROL(base) __REG32(base, 0x0000002c)
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#define reg_MII_MGMT_STATUS(base) __REG32(base, 0x00000030)
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#define reg_MII_MGMT_INDICATORS(base) __REG32(base, 0x00000034)
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#define MII_MGMT_INDICATORS_BUSY (0x00000001)
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#define MII_MGMT_INDICATORS_SCAN (0x00000002)
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#define MII_MGMT_INDICATORS_NOT_VALID (0x00000004)
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#define reg_INTERFACE_STATUS(base) __REG32(base, 0x0000003c)
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#define INTERFACE_STATUS_LINK_FAIL (0x00000008)
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#define INTERFACE_STATUS_EXCESS_DEFER (0x00000200)
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#define reg_STATION_ADDRESS_1(base) __REG32(base, 0x00000040)
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#define reg_STATION_ADDRESS_2(base) __REG32(base, 0x00000044)
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#define reg_PORT_CONTROL(base) __REG32(base, 0x00000200)
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#define PORT_CONTROL_PRI (0x00000001)
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#define PORT_CONTROL_BPT (0x00010000)
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#define PORT_CONTROL_SPD (0x00040000)
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#define PORT_CONTROL_RBC (0x00080000)
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#define PORT_CONTROL_PRB (0x00200000)
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#define PORT_CONTROL_DIS (0x00400000)
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#define PORT_CONTROL_TBI (0x00800000)
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#define PORT_CONTROL_STE (0x10000000)
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#define PORT_CONTROL_ZOR (0x20000000)
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#define PORT_CONTROL_CLR (0x40000000)
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#define PORT_CONTROL_SRT (0x80000000)
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#define reg_TX_CONFIG(base) __REG32(base, 0x00000220)
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#define TX_CONFIG_START_Q (0x00000003)
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#define TX_CONFIG_EHP (0x00400000)
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#define TX_CONFIG_CHP (0x00800000)
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#define TX_CONFIG_RST (0x80000000)
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#define reg_TX_CONTROL(base) __REG32(base, 0x00000224)
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#define TX_CONTROL_GO (0x00008000)
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#define TX_CONTROL_MP (0x01000000)
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#define TX_CONTROL_EAI (0x20000000)
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#define TX_CONTROL_ABT (0x40000000)
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#define TX_CONTROL_EII (0x80000000)
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#define reg_TX_STATUS(base) __REG32(base, 0x00000228)
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#define TX_STATUS_QUEUE_USABLE (0x0000000f)
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#define TX_STATUS_CURR_Q (0x00000300)
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#define TX_STATUS_ACT (0x00008000)
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#define TX_STATUS_QUEUE_IDLE (0x000f0000)
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#define TX_STATUS_EOQ_PENDING (0x0f000000)
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#define reg_TX_EXTENDED_STATUS(base) __REG32(base, 0x0000022c)
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#define TX_EXTENDED_STATUS_END_OF_QUEUE_CONDITION (0x0000000f)
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#define TX_EXTENDED_STATUS_END_OF_FRAME_CONDITION (0x00000f00)
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#define TX_EXTENDED_STATUS_DESCRIPTOR_INTERRUPT_CONDITION (0x000f0000)
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#define TX_EXTENDED_STATUS_ERROR_FLAG (0x0f000000)
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#define reg_TX_THRESHOLDS(base) __REG32(base, 0x00000230)
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#define reg_TX_DIAGNOSTIC_ADDR(base) __REG32(base, 0x00000270)
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#define TX_DIAGNOSTIC_ADDR_INDEX (0x0000007f)
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#define TX_DIAGNOSTIC_ADDR_DFR (0x40000000)
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#define TX_DIAGNOSTIC_ADDR_AI (0x80000000)
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#define reg_TX_DIAGNOSTIC_DATA(base) __REG32(base, 0x00000274)
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#define reg_TX_ERROR_STATUS(base) __REG32(base, 0x00000278)
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#define TX_ERROR_STATUS (0x00000278)
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#define TX_ERROR_STATUS_QUEUE_0_ERROR_RESPONSE (0x0000000f)
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#define TX_ERROR_STATUS_TEA_ON_QUEUE_0 (0x00000010)
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#define TX_ERROR_STATUS_RER_ON_QUEUE_0 (0x00000020)
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#define TX_ERROR_STATUS_TER_ON_QUEUE_0 (0x00000040)
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#define TX_ERROR_STATUS_DER_ON_QUEUE_0 (0x00000080)
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#define TX_ERROR_STATUS_QUEUE_1_ERROR_RESPONSE (0x00000f00)
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#define TX_ERROR_STATUS_TEA_ON_QUEUE_1 (0x00001000)
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#define TX_ERROR_STATUS_RER_ON_QUEUE_1 (0x00002000)
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#define TX_ERROR_STATUS_TER_ON_QUEUE_1 (0x00004000)
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#define TX_ERROR_STATUS_DER_ON_QUEUE_1 (0x00008000)
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#define TX_ERROR_STATUS_QUEUE_2_ERROR_RESPONSE (0x000f0000)
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#define TX_ERROR_STATUS_TEA_ON_QUEUE_2 (0x00100000)
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#define TX_ERROR_STATUS_RER_ON_QUEUE_2 (0x00200000)
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#define TX_ERROR_STATUS_TER_ON_QUEUE_2 (0x00400000)
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#define TX_ERROR_STATUS_DER_ON_QUEUE_2 (0x00800000)
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#define TX_ERROR_STATUS_QUEUE_3_ERROR_RESPONSE (0x0f000000)
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#define TX_ERROR_STATUS_TEA_ON_QUEUE_3 (0x10000000)
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#define TX_ERROR_STATUS_RER_ON_QUEUE_3 (0x20000000)
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#define TX_ERROR_STATUS_TER_ON_QUEUE_3 (0x40000000)
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#define TX_ERROR_STATUS_DER_ON_QUEUE_3 (0x80000000)
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#define reg_TX_QUEUE_0_CONFIG(base) __REG32(base, 0x00000280)
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#define TX_QUEUE_0_CONFIG_OCN_PORT (0x0000003f)
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#define TX_QUEUE_0_CONFIG_BSWP (0x00000400)
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#define TX_QUEUE_0_CONFIG_WSWP (0x00000800)
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#define TX_QUEUE_0_CONFIG_AM (0x00004000)
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#define TX_QUEUE_0_CONFIG_GVI (0x00008000)
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#define TX_QUEUE_0_CONFIG_EEI (0x00010000)
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#define TX_QUEUE_0_CONFIG_ELI (0x00020000)
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#define TX_QUEUE_0_CONFIG_ENI (0x00040000)
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#define TX_QUEUE_0_CONFIG_ESI (0x00080000)
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#define TX_QUEUE_0_CONFIG_EDI (0x00100000)
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#define reg_TX_QUEUE_0_BUF_CONFIG(base) __REG32(base, 0x00000284)
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#define TX_QUEUE_0_BUF_CONFIG_OCN_PORT (0x0000003f)
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#define TX_QUEUE_0_BUF_CONFIG_BURST (0x00000300)
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#define TX_QUEUE_0_BUF_CONFIG_BSWP (0x00000400)
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#define TX_QUEUE_0_BUF_CONFIG_WSWP (0x00000800)
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#define OCN_PORT_HLP 0 /* HLP Interface */
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#define OCN_PORT_PCI_X 1 /* PCI-X Interface */
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#define OCN_PORT_PROCESSOR_MASTER 2 /* Processor Interface (master) */
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#define OCN_PORT_PROCESSOR_SLAVE 3 /* Processor Interface (slave) */
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#define OCN_PORT_MEMORY 4 /* Memory Controller */
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#define OCN_PORT_DMA 5 /* DMA Controller */
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#define OCN_PORT_ETHERNET 6 /* Ethernet Controller */
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#define OCN_PORT_PRINT 7 /* Print Engine Interface */
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#define reg_TX_QUEUE_0_PTR_LOW(base) __REG32(base, 0x00000288)
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#define reg_TX_QUEUE_0_PTR_HIGH(base) __REG32(base, 0x0000028c)
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#define TX_QUEUE_0_PTR_HIGH_VALID (0x80000000)
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#define reg_RX_CONFIG(base) __REG32(base, 0x00000320)
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#define RX_CONFIG_DEF_Q (0x00000003)
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#define RX_CONFIG_EMF (0x00000100)
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#define RX_CONFIG_EUF (0x00000200)
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#define RX_CONFIG_BFE (0x00000400)
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#define RX_CONFIG_MFE (0x00000800)
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#define RX_CONFIG_UFE (0x00001000)
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#define RX_CONFIG_SE (0x00002000)
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#define RX_CONFIG_ABF (0x00200000)
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#define RX_CONFIG_APE (0x00400000)
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#define RX_CONFIG_CHP (0x00800000)
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#define RX_CONFIG_RST (0x80000000)
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#define reg_RX_CONTROL(base) __REG32(base, 0x00000324)
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#define GE_E0_RX_CONTROL_QUEUE_ENABLES (0x0000000f)
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#define GE_E0_RX_CONTROL_GO (0x00008000)
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#define GE_E0_RX_CONTROL_EAI (0x20000000)
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#define GE_E0_RX_CONTROL_ABT (0x40000000)
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#define GE_E0_RX_CONTROL_EII (0x80000000)
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#define reg_RX_EXTENDED_STATUS(base) __REG32(base, 0x0000032c)
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#define RX_EXTENDED_STATUS (0x0000032c)
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#define RX_EXTENDED_STATUS_EOQ (0x0000000f)
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#define RX_EXTENDED_STATUS_EOQ_0 (0x00000001)
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#define RX_EXTENDED_STATUS_EOF (0x00000f00)
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#define RX_EXTENDED_STATUS_DESCRIPTOR_INTERRUPT_CONDITION (0x000f0000)
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#define RX_EXTENDED_STATUS_ERROR_FLAG (0x0f000000)
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#define reg_RX_THRESHOLDS(base) __REG32(base, 0x00000330)
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#define reg_RX_DIAGNOSTIC_ADDR(base) __REG32(base, 0x00000370)
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#define RX_DIAGNOSTIC_ADDR_INDEX (0x0000007f)
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#define RX_DIAGNOSTIC_ADDR_DFR (0x40000000)
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#define RX_DIAGNOSTIC_ADDR_AI (0x80000000)
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#define reg_RX_DIAGNOSTIC_DATA(base) __REG32(base, 0x00000374)
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#define reg_RX_QUEUE_0_CONFIG(base) __REG32(base, 0x00000380)
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#define RX_QUEUE_0_CONFIG_OCN_PORT (0x0000003f)
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#define RX_QUEUE_0_CONFIG_BSWP (0x00000400)
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#define RX_QUEUE_0_CONFIG_WSWP (0x00000800)
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#define RX_QUEUE_0_CONFIG_AM (0x00004000)
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#define RX_QUEUE_0_CONFIG_EEI (0x00010000)
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#define RX_QUEUE_0_CONFIG_ELI (0x00020000)
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#define RX_QUEUE_0_CONFIG_ENI (0x00040000)
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#define RX_QUEUE_0_CONFIG_ESI (0x00080000)
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#define RX_QUEUE_0_CONFIG_EDI (0x00100000)
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#define reg_RX_QUEUE_0_BUF_CONFIG(base) __REG32(base, 0x00000384)
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#define RX_QUEUE_0_BUF_CONFIG_OCN_PORT (0x0000003f)
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#define RX_QUEUE_0_BUF_CONFIG_BURST (0x00000300)
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#define RX_QUEUE_0_BUF_CONFIG_BSWP (0x00000400)
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#define RX_QUEUE_0_BUF_CONFIG_WSWP (0x00000800)
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#define reg_RX_QUEUE_0_PTR_LOW(base) __REG32(base, 0x00000388)
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#define reg_RX_QUEUE_0_PTR_HIGH(base) __REG32(base, 0x0000038c)
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#define RX_QUEUE_0_PTR_HIGH_VALID (0x80000000)
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/*
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* PHY register definitions
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*/
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/* the first 15 PHY registers are standard. */
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#define PHY_CTRL_REG 0 /* Control Register */
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#define PHY_STATUS_REG 1 /* Status Regiser */
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#define PHY_ID1_REG 2 /* Phy Id Reg (word 1) */
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#define PHY_ID2_REG 3 /* Phy Id Reg (word 2) */
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#define PHY_AN_ADV_REG 4 /* Autoneg Advertisement */
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#define PHY_LP_ABILITY_REG 5 /* Link Partner Ability (Base Page) */
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#define PHY_AUTONEG_EXP_REG 6 /* Autoneg Expansion Reg */
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#define PHY_NEXT_PAGE_TX_REG 7 /* Next Page TX */
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#define PHY_LP_NEXT_PAGE_REG 8 /* Link Partner Next Page */
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#define PHY_1000T_CTRL_REG 9 /* 1000Base-T Control Reg */
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#define PHY_1000T_STATUS_REG 10 /* 1000Base-T Status Reg */
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#define PHY_EXT_STATUS_REG 11 /* Extended Status Reg */
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/*
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* PHY Register bit masks.
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*/
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#define PHY_CTRL_RESET (1 << 15)
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#define PHY_CTRL_LOOPBACK (1 << 14)
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#define PHY_CTRL_SPEED0 (1 << 13)
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#define PHY_CTRL_AN_EN (1 << 12)
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#define PHY_CTRL_PWR_DN (1 << 11)
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#define PHY_CTRL_ISOLATE (1 << 10)
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#define PHY_CTRL_RESTART_AN (1 << 9)
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#define PHY_CTRL_FULL_DUPLEX (1 << 8)
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#define PHY_CTRL_CT_EN (1 << 7)
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#define PHY_CTRL_SPEED1 (1 << 6)
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#define PHY_STAT_100BASE_T4 (1 << 15)
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#define PHY_STAT_100BASE_X_FD (1 << 14)
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#define PHY_STAT_100BASE_X_HD (1 << 13)
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#define PHY_STAT_10BASE_T_FD (1 << 12)
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#define PHY_STAT_10BASE_T_HD (1 << 11)
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#define PHY_STAT_100BASE_T2_FD (1 << 10)
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#define PHY_STAT_100BASE_T2_HD (1 << 9)
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#define PHY_STAT_EXT_STAT (1 << 8)
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#define PHY_STAT_RESERVED (1 << 7)
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#define PHY_STAT_MFPS (1 << 6) /* Management Frames Preamble Suppression */
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#define PHY_STAT_AN_COMPLETE (1 << 5)
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#define PHY_STAT_REM_FAULT (1 << 4)
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#define PHY_STAT_AN_CAP (1 << 3)
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#define PHY_STAT_LINK_UP (1 << 2)
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#define PHY_STAT_JABBER (1 << 1)
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#define PHY_STAT_EXT_CAP (1 << 0)
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#define TBI_CONTROL_2 0x11
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#define TBI_CONTROL_2_ENABLE_COMMA_DETECT 0x0001
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#define TBI_CONTROL_2_ENABLE_WRAP 0x0002
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#define TBI_CONTROL_2_G_MII_MODE 0x0010
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#define TBI_CONTROL_2_RECEIVE_CLOCK_SELECT 0x0020
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#define TBI_CONTROL_2_AUTO_NEGOTIATION_SENSE 0x0100
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#define TBI_CONTROL_2_DISABLE_TRANSMIT_RUNNING_DISPARITY 0x1000
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#define TBI_CONTROL_2_DISABLE_RECEIVE_RUNNING_DISPARITY 0x2000
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#define TBI_CONTROL_2_SHORTCUT_LINK_TIMER 0x4000
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#define TBI_CONTROL_2_SOFT_RESET 0x8000
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/* marvel specific */
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#define MV1111_EXT_CTRL1_REG 16 /* PHY Specific Control Reg */
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#define MV1111_SPEC_STAT_REG 17 /* PHY Specific Status Reg */
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#define MV1111_EXT_CTRL2_REG 20 /* Extended PHY Specific Control Reg */
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/*
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* MARVELL 88E1111 PHY register bit masks
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*/
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/* PHY Specific Status Register (MV1111_EXT_CTRL1_REG) */
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#define SPEC_STAT_SPEED_MASK (3 << 14)
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#define SPEC_STAT_FULL_DUP (1 << 13)
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#define SPEC_STAT_PAGE_RCVD (1 << 12)
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#define SPEC_STAT_RESOLVED (1 << 11) /* Speed and Duplex Resolved */
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#define SPEC_STAT_LINK_UP (1 << 10)
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#define SPEC_STAT_CABLE_LEN_MASK (7 << 7)/* Cable Length (100/1000 modes only) */
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#define SPEC_STAT_MDIX (1 << 6)
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#define SPEC_STAT_POLARITY (1 << 1)
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#define SPEC_STAT_JABBER (1 << 0)
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#define SPEED_1000 (2 << 14)
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#define SPEED_100 (1 << 14)
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#define SPEED_10 (0 << 14)
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#define TBI_ADDR 0x1E /* Ten Bit Interface address */
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/* negotiated link parameters */
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#define LINK_SPEED_UNKNOWN 0
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#define LINK_SPEED_10 1
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#define LINK_SPEED_100 2
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#define LINK_SPEED_1000 3
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#define LINK_DUPLEX_UNKNOWN 0
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#define LINK_DUPLEX_HALF 1
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#define LINK_DUPLEX_FULL 2
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static unsigned int phy_address[] = { 8, 9 };
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#define vuint32 volatile u32
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/* TX/RX buffer descriptors. MUST be cache line aligned in memory. (32 byte)
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* This structure is accessed by the ethernet DMA engine which means it
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* MUST be in LITTLE ENDIAN format */
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struct dma_descriptor {
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vuint32 start_addr0; /* buffer address, least significant bytes. */
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vuint32 start_addr1; /* buffer address, most significant bytes. */
|
|
vuint32 next_descr_addr0;/* next descriptor address, least significant bytes. Must be 64-bit aligned. */
|
|
vuint32 next_descr_addr1;/* next descriptor address, most significant bytes. */
|
|
vuint32 vlan_byte_count;/* VLAN tag(top 2 bytes) and byte countt (bottom 2 bytes). */
|
|
vuint32 config_status; /* Configuration/Status. */
|
|
vuint32 reserved1; /* reserved to make the descriptor cache line aligned. */
|
|
vuint32 reserved2; /* reserved to make the descriptor cache line aligned. */
|
|
};
|
|
|
|
/* last next descriptor address flag */
|
|
#define DMA_DESCR_LAST (1 << 31)
|
|
|
|
/* TX DMA descriptor config status bits */
|
|
#define DMA_DESCR_TX_EOF (1 << 0) /* end of frame */
|
|
#define DMA_DESCR_TX_SOF (1 << 1) /* start of frame */
|
|
#define DMA_DESCR_TX_PFVLAN (1 << 2)
|
|
#define DMA_DESCR_TX_HUGE (1 << 3)
|
|
#define DMA_DESCR_TX_PAD (1 << 4)
|
|
#define DMA_DESCR_TX_CRC (1 << 5)
|
|
#define DMA_DESCR_TX_DESCR_INT (1 << 14)
|
|
#define DMA_DESCR_TX_RETRY_COUNT 0x000F0000
|
|
#define DMA_DESCR_TX_ONE_COLLISION (1 << 20)
|
|
#define DMA_DESCR_TX_LATE_COLLISION (1 << 24)
|
|
#define DMA_DESCR_TX_UNDERRUN (1 << 25)
|
|
#define DMA_DESCR_TX_RETRY_LIMIT (1 << 26)
|
|
#define DMA_DESCR_TX_OK (1 << 30)
|
|
#define DMA_DESCR_TX_OWNER (1 << 31)
|
|
|
|
/* RX DMA descriptor status bits */
|
|
#define DMA_DESCR_RX_EOF (1 << 0)
|
|
#define DMA_DESCR_RX_SOF (1 << 1)
|
|
#define DMA_DESCR_RX_VTF (1 << 2)
|
|
#define DMA_DESCR_RX_FRAME_IS_TYPE (1 << 3)
|
|
#define DMA_DESCR_RX_SHORT_FRAME (1 << 4)
|
|
#define DMA_DESCR_RX_HASH_MATCH (1 << 7)
|
|
#define DMA_DESCR_RX_BAD_FRAME (1 << 8)
|
|
#define DMA_DESCR_RX_OVERRUN (1 << 9)
|
|
#define DMA_DESCR_RX_MAX_FRAME_LEN (1 << 11)
|
|
#define DMA_DESCR_RX_CRC_ERROR (1 << 12)
|
|
#define DMA_DESCR_RX_DESCR_INT (1 << 13)
|
|
#define DMA_DESCR_RX_OWNER (1 << 15)
|
|
|
|
#define RX_BUFFER_SIZE PKTSIZE
|
|
#define NUM_RX_DESC PKTBUFSRX
|
|
|
|
static struct dma_descriptor tx_descriptor __attribute__ ((aligned(32)));
|
|
|
|
static struct dma_descriptor rx_descr_array[NUM_RX_DESC]
|
|
__attribute__ ((aligned(32)));
|
|
|
|
static struct dma_descriptor *rx_descr_current;
|
|
|
|
static int tsi108_eth_probe (struct eth_device *dev, bd_t * bis);
|
|
static int tsi108_eth_send(struct eth_device *dev, void *packet, int length);
|
|
static int tsi108_eth_recv (struct eth_device *dev);
|
|
static void tsi108_eth_halt (struct eth_device *dev);
|
|
static unsigned int read_phy (unsigned int base,
|
|
unsigned int phy_addr, unsigned int phy_reg);
|
|
static void write_phy (unsigned int base,
|
|
unsigned int phy_addr,
|
|
unsigned int phy_reg, unsigned int phy_data);
|
|
|
|
#if TSI108_ETH_DEBUG > 100
|
|
/*
|
|
* print phy debug infomation
|
|
*/
|
|
static void dump_phy_regs (unsigned int phy_addr)
|
|
{
|
|
int i;
|
|
|
|
printf ("PHY %d registers\n", phy_addr);
|
|
for (i = 0; i <= 30; i++) {
|
|
printf ("%2d 0x%04x\n", i, read_phy (ETH_BASE, phy_addr, i));
|
|
}
|
|
printf ("\n");
|
|
|
|
}
|
|
#else
|
|
#define dump_phy_regs(base) do{}while(0)
|
|
#endif
|
|
|
|
#if TSI108_ETH_DEBUG > 100
|
|
/*
|
|
* print debug infomation
|
|
*/
|
|
static void tx_diag_regs (unsigned int base)
|
|
{
|
|
int i;
|
|
unsigned long dummy;
|
|
|
|
printf ("TX diagnostics registers\n");
|
|
reg_TX_DIAGNOSTIC_ADDR(base) = 0x00 | TX_DIAGNOSTIC_ADDR_AI;
|
|
udelay (1000);
|
|
dummy = reg_TX_DIAGNOSTIC_DATA(base);
|
|
for (i = 0x00; i <= 0x05; i++) {
|
|
udelay (1000);
|
|
printf ("0x%02x 0x%08x\n", i, reg_TX_DIAGNOSTIC_DATA(base));
|
|
}
|
|
reg_TX_DIAGNOSTIC_ADDR(base) = 0x40 | TX_DIAGNOSTIC_ADDR_AI;
|
|
udelay (1000);
|
|
dummy = reg_TX_DIAGNOSTIC_DATA(base);
|
|
for (i = 0x40; i <= 0x47; i++) {
|
|
udelay (1000);
|
|
printf ("0x%02x 0x%08x\n", i, reg_TX_DIAGNOSTIC_DATA(base));
|
|
}
|
|
printf ("\n");
|
|
|
|
}
|
|
#else
|
|
#define tx_diag_regs(base) do{}while(0)
|
|
#endif
|
|
|
|
#if TSI108_ETH_DEBUG > 100
|
|
/*
|
|
* print debug infomation
|
|
*/
|
|
static void rx_diag_regs (unsigned int base)
|
|
{
|
|
int i;
|
|
unsigned long dummy;
|
|
|
|
printf ("RX diagnostics registers\n");
|
|
reg_RX_DIAGNOSTIC_ADDR(base) = 0x00 | RX_DIAGNOSTIC_ADDR_AI;
|
|
udelay (1000);
|
|
dummy = reg_RX_DIAGNOSTIC_DATA(base);
|
|
for (i = 0x00; i <= 0x05; i++) {
|
|
udelay (1000);
|
|
printf ("0x%02x 0x%08x\n", i, reg_RX_DIAGNOSTIC_DATA(base));
|
|
}
|
|
reg_RX_DIAGNOSTIC_ADDR(base) = 0x40 | RX_DIAGNOSTIC_ADDR_AI;
|
|
udelay (1000);
|
|
dummy = reg_RX_DIAGNOSTIC_DATA(base);
|
|
for (i = 0x08; i <= 0x0a; i++) {
|
|
udelay (1000);
|
|
printf ("0x%02x 0x%08x\n", i, reg_RX_DIAGNOSTIC_DATA(base));
|
|
}
|
|
printf ("\n");
|
|
|
|
}
|
|
#else
|
|
#define rx_diag_regs(base) do{}while(0)
|
|
#endif
|
|
|
|
#if TSI108_ETH_DEBUG > 100
|
|
/*
|
|
* print debug infomation
|
|
*/
|
|
static void debug_mii_regs (unsigned int base)
|
|
{
|
|
printf ("MII_MGMT_CONFIG 0x%08x\n", reg_MII_MGMT_CONFIG(base));
|
|
printf ("MII_MGMT_COMMAND 0x%08x\n", reg_MII_MGMT_COMMAND(base));
|
|
printf ("MII_MGMT_ADDRESS 0x%08x\n", reg_MII_MGMT_ADDRESS(base));
|
|
printf ("MII_MGMT_CONTROL 0x%08x\n", reg_MII_MGMT_CONTROL(base));
|
|
printf ("MII_MGMT_STATUS 0x%08x\n", reg_MII_MGMT_STATUS(base));
|
|
printf ("MII_MGMT_INDICATORS 0x%08x\n", reg_MII_MGMT_INDICATORS(base));
|
|
printf ("\n");
|
|
|
|
}
|
|
#else
|
|
#define debug_mii_regs(base) do{}while(0)
|
|
#endif
|
|
|
|
/*
|
|
* Wait until the phy bus is non-busy
|
|
*/
|
|
static void phy_wait (unsigned int base, unsigned int condition)
|
|
{
|
|
int timeout;
|
|
|
|
timeout = 0;
|
|
while (reg_MII_MGMT_INDICATORS(base) & condition) {
|
|
udelay (10);
|
|
if (++timeout > 10000) {
|
|
printf ("ERROR: timeout waiting for phy bus (%d)\n",
|
|
condition);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* read phy register
|
|
*/
|
|
static unsigned int read_phy (unsigned int base,
|
|
unsigned int phy_addr, unsigned int phy_reg)
|
|
{
|
|
unsigned int value;
|
|
|
|
phy_wait (base, MII_MGMT_INDICATORS_BUSY);
|
|
|
|
reg_MII_MGMT_ADDRESS(base) = (phy_addr << 8) | phy_reg;
|
|
|
|
/* Ensure that the Read Cycle bit is cleared prior to next read cycle */
|
|
reg_MII_MGMT_COMMAND(base) = 0;
|
|
|
|
/* start the read */
|
|
reg_MII_MGMT_COMMAND(base) = MII_MGMT_COMMAND_READ_CYCLE;
|
|
|
|
/* wait for the read to complete */
|
|
phy_wait (base,
|
|
MII_MGMT_INDICATORS_NOT_VALID | MII_MGMT_INDICATORS_BUSY);
|
|
|
|
value = reg_MII_MGMT_STATUS(base);
|
|
|
|
reg_MII_MGMT_COMMAND(base) = 0;
|
|
|
|
return value;
|
|
}
|
|
|
|
/*
|
|
* write phy register
|
|
*/
|
|
static void write_phy (unsigned int base,
|
|
unsigned int phy_addr,
|
|
unsigned int phy_reg, unsigned int phy_data)
|
|
{
|
|
phy_wait (base, MII_MGMT_INDICATORS_BUSY);
|
|
|
|
reg_MII_MGMT_ADDRESS(base) = (phy_addr << 8) | phy_reg;
|
|
|
|
/* Ensure that the Read Cycle bit is cleared prior to next cycle */
|
|
reg_MII_MGMT_COMMAND(base) = 0;
|
|
|
|
/* start the write */
|
|
reg_MII_MGMT_CONTROL(base) = phy_data;
|
|
}
|
|
|
|
/*
|
|
* configure the marvell 88e1111 phy
|
|
*/
|
|
static int marvell_88e_phy_config (struct eth_device *dev, int *speed,
|
|
int *duplex)
|
|
{
|
|
unsigned long base;
|
|
unsigned long phy_addr;
|
|
unsigned int phy_status;
|
|
unsigned int phy_spec_status;
|
|
int timeout;
|
|
int phy_speed;
|
|
int phy_duplex;
|
|
unsigned int value;
|
|
|
|
phy_speed = LINK_SPEED_UNKNOWN;
|
|
phy_duplex = LINK_DUPLEX_UNKNOWN;
|
|
|
|
base = dev->iobase;
|
|
phy_addr = (unsigned long)dev->priv;
|
|
|
|
/* Take the PHY out of reset. */
|
|
write_phy (ETH_BASE, phy_addr, PHY_CTRL_REG, PHY_CTRL_RESET);
|
|
|
|
/* Wait for the reset process to complete. */
|
|
udelay (10);
|
|
timeout = 0;
|
|
while ((phy_status =
|
|
read_phy (ETH_BASE, phy_addr, PHY_CTRL_REG)) & PHY_CTRL_RESET) {
|
|
udelay (10);
|
|
if (++timeout > 10000) {
|
|
printf ("ERROR: timeout waiting for phy reset\n");
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* TBI Configuration. */
|
|
write_phy (base, TBI_ADDR, TBI_CONTROL_2, TBI_CONTROL_2_G_MII_MODE |
|
|
TBI_CONTROL_2_RECEIVE_CLOCK_SELECT);
|
|
/* Wait for the link to be established. */
|
|
timeout = 0;
|
|
do {
|
|
udelay (20000);
|
|
phy_status = read_phy (ETH_BASE, phy_addr, PHY_STATUS_REG);
|
|
if (++timeout > 100) {
|
|
debug_lev(1, "ERROR: unable to establish link!!!\n");
|
|
break;
|
|
}
|
|
} while ((phy_status & PHY_STAT_LINK_UP) == 0);
|
|
|
|
if ((phy_status & PHY_STAT_LINK_UP) == 0)
|
|
return 0;
|
|
|
|
value = 0;
|
|
phy_spec_status = read_phy (ETH_BASE, phy_addr, MV1111_SPEC_STAT_REG);
|
|
if (phy_spec_status & SPEC_STAT_RESOLVED) {
|
|
switch (phy_spec_status & SPEC_STAT_SPEED_MASK) {
|
|
case SPEED_1000:
|
|
phy_speed = LINK_SPEED_1000;
|
|
value |= PHY_CTRL_SPEED1;
|
|
break;
|
|
case SPEED_100:
|
|
phy_speed = LINK_SPEED_100;
|
|
value |= PHY_CTRL_SPEED0;
|
|
break;
|
|
case SPEED_10:
|
|
phy_speed = LINK_SPEED_10;
|
|
break;
|
|
}
|
|
if (phy_spec_status & SPEC_STAT_FULL_DUP) {
|
|
phy_duplex = LINK_DUPLEX_FULL;
|
|
value |= PHY_CTRL_FULL_DUPLEX;
|
|
} else
|
|
phy_duplex = LINK_DUPLEX_HALF;
|
|
}
|
|
/* set TBI speed */
|
|
write_phy (base, TBI_ADDR, PHY_CTRL_REG, value);
|
|
write_phy (base, TBI_ADDR, PHY_AN_ADV_REG, 0x0060);
|
|
|
|
#if TSI108_ETH_DEBUG > 0
|
|
printf ("%s link is up", dev->name);
|
|
phy_spec_status = read_phy (ETH_BASE, phy_addr, MV1111_SPEC_STAT_REG);
|
|
if (phy_spec_status & SPEC_STAT_RESOLVED) {
|
|
switch (phy_speed) {
|
|
case LINK_SPEED_1000:
|
|
printf (", 1000 Mbps");
|
|
break;
|
|
case LINK_SPEED_100:
|
|
printf (", 100 Mbps");
|
|
break;
|
|
case LINK_SPEED_10:
|
|
printf (", 10 Mbps");
|
|
break;
|
|
}
|
|
if (phy_duplex == LINK_DUPLEX_FULL)
|
|
printf (", Full duplex");
|
|
else
|
|
printf (", Half duplex");
|
|
}
|
|
printf ("\n");
|
|
#endif
|
|
|
|
dump_phy_regs (TBI_ADDR);
|
|
if (speed)
|
|
*speed = phy_speed;
|
|
if (duplex)
|
|
*duplex = phy_duplex;
|
|
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* External interface
|
|
*
|
|
* register the tsi108 ethernet controllers with the multi-ethernet system
|
|
*/
|
|
int tsi108_eth_initialize (bd_t * bis)
|
|
{
|
|
struct eth_device *dev;
|
|
int index;
|
|
|
|
for (index = 0; index < CONFIG_TSI108_ETH_NUM_PORTS; index++) {
|
|
dev = (struct eth_device *)malloc(sizeof(struct eth_device));
|
|
if (!dev) {
|
|
printf("tsi108: Can not allocate memory\n");
|
|
break;
|
|
}
|
|
memset(dev, 0, sizeof(*dev));
|
|
sprintf (dev->name, "TSI108_eth%d", index);
|
|
|
|
dev->iobase = ETH_BASE + (index * ETH_PORT_OFFSET);
|
|
dev->priv = (void *)(phy_address[index]);
|
|
dev->init = tsi108_eth_probe;
|
|
dev->halt = tsi108_eth_halt;
|
|
dev->send = tsi108_eth_send;
|
|
dev->recv = tsi108_eth_recv;
|
|
|
|
eth_register(dev);
|
|
}
|
|
return index;
|
|
}
|
|
|
|
/*
|
|
* probe for and initialize a single ethernet interface
|
|
*/
|
|
static int tsi108_eth_probe (struct eth_device *dev, bd_t * bis)
|
|
{
|
|
unsigned long base;
|
|
unsigned long value;
|
|
int index;
|
|
struct dma_descriptor *tx_descr;
|
|
struct dma_descriptor *rx_descr;
|
|
int speed;
|
|
int duplex;
|
|
|
|
base = dev->iobase;
|
|
|
|
reg_PORT_CONTROL(base) = PORT_CONTROL_STE | PORT_CONTROL_BPT;
|
|
|
|
/* Bring DMA/FIFO out of reset. */
|
|
reg_TX_CONFIG(base) = 0x00000000;
|
|
reg_RX_CONFIG(base) = 0x00000000;
|
|
|
|
reg_TX_THRESHOLDS(base) = (192 << 16) | 192;
|
|
reg_RX_THRESHOLDS(base) = (192 << 16) | 112;
|
|
|
|
/* Bring MAC out of reset. */
|
|
reg_MAC_CONFIG_1(base) = 0x00000000;
|
|
|
|
/* DMA MAC configuration. */
|
|
reg_MAC_CONFIG_1(base) =
|
|
MAC_CONFIG_1_RX_ENABLE | MAC_CONFIG_1_TX_ENABLE;
|
|
|
|
reg_MII_MGMT_CONFIG(base) = MII_MGMT_CONFIG_NO_PREAMBLE;
|
|
reg_MAXIMUM_FRAME_LENGTH(base) = RX_BUFFER_SIZE;
|
|
|
|
/* Note: Early tsi108 manual did not have correct byte order
|
|
* for the station address.*/
|
|
reg_STATION_ADDRESS_1(base) = (dev->enetaddr[5] << 24) |
|
|
(dev->enetaddr[4] << 16) |
|
|
(dev->enetaddr[3] << 8) | (dev->enetaddr[2] << 0);
|
|
|
|
reg_STATION_ADDRESS_2(base) = (dev->enetaddr[1] << 24) |
|
|
(dev->enetaddr[0] << 16);
|
|
|
|
if (marvell_88e_phy_config(dev, &speed, &duplex) == 0)
|
|
return -1;
|
|
|
|
value =
|
|
MAC_CONFIG_2_PREAMBLE_LENGTH(7) | MAC_CONFIG_2_PAD_CRC |
|
|
MAC_CONFIG_2_CRC_ENABLE;
|
|
if (speed == LINK_SPEED_1000)
|
|
value |= MAC_CONFIG_2_INTERFACE_MODE(INTERFACE_MODE_BYTE);
|
|
else {
|
|
value |= MAC_CONFIG_2_INTERFACE_MODE(INTERFACE_MODE_NIBBLE);
|
|
reg_PORT_CONTROL(base) |= PORT_CONTROL_SPD;
|
|
}
|
|
if (duplex == LINK_DUPLEX_FULL) {
|
|
value |= MAC_CONFIG_2_FULL_DUPLEX;
|
|
reg_PORT_CONTROL(base) &= ~PORT_CONTROL_BPT;
|
|
} else
|
|
reg_PORT_CONTROL(base) |= PORT_CONTROL_BPT;
|
|
reg_MAC_CONFIG_2(base) = value;
|
|
|
|
reg_RX_CONFIG(base) = RX_CONFIG_SE;
|
|
reg_RX_QUEUE_0_CONFIG(base) = OCN_PORT_MEMORY;
|
|
reg_RX_QUEUE_0_BUF_CONFIG(base) = OCN_PORT_MEMORY;
|
|
|
|
/* initialize the RX DMA descriptors */
|
|
rx_descr = &rx_descr_array[0];
|
|
rx_descr_current = rx_descr;
|
|
for (index = 0; index < NUM_RX_DESC; index++) {
|
|
/* make sure the receive buffers are not in cache */
|
|
invalidate_dcache_range((unsigned long)net_rx_packets[index],
|
|
(unsigned long)net_rx_packets[index] +
|
|
RX_BUFFER_SIZE);
|
|
rx_descr->start_addr0 =
|
|
cpu_to_le32((vuint32) net_rx_packets[index]);
|
|
rx_descr->start_addr1 = 0;
|
|
rx_descr->next_descr_addr0 =
|
|
cpu_to_le32((vuint32) (rx_descr + 1));
|
|
rx_descr->next_descr_addr1 = 0;
|
|
rx_descr->vlan_byte_count = 0;
|
|
rx_descr->config_status = cpu_to_le32((RX_BUFFER_SIZE << 16) |
|
|
DMA_DESCR_RX_OWNER);
|
|
rx_descr++;
|
|
}
|
|
rx_descr--;
|
|
rx_descr->next_descr_addr0 = 0;
|
|
rx_descr->next_descr_addr1 = cpu_to_le32(DMA_DESCR_LAST);
|
|
/* Push the descriptors to RAM so the ethernet DMA can see them */
|
|
invalidate_dcache_range((unsigned long)rx_descr_array,
|
|
(unsigned long)rx_descr_array +
|
|
sizeof(rx_descr_array));
|
|
|
|
/* enable RX queue */
|
|
reg_RX_CONTROL(base) = TX_CONTROL_GO | 0x01;
|
|
reg_RX_QUEUE_0_PTR_LOW(base) = (u32) rx_descr_current;
|
|
/* enable receive DMA */
|
|
reg_RX_QUEUE_0_PTR_HIGH(base) = RX_QUEUE_0_PTR_HIGH_VALID;
|
|
|
|
reg_TX_QUEUE_0_CONFIG(base) = OCN_PORT_MEMORY;
|
|
reg_TX_QUEUE_0_BUF_CONFIG(base) = OCN_PORT_MEMORY;
|
|
|
|
/* initialize the TX DMA descriptor */
|
|
tx_descr = &tx_descriptor;
|
|
|
|
tx_descr->start_addr0 = 0;
|
|
tx_descr->start_addr1 = 0;
|
|
tx_descr->next_descr_addr0 = 0;
|
|
tx_descr->next_descr_addr1 = cpu_to_le32(DMA_DESCR_LAST);
|
|
tx_descr->vlan_byte_count = 0;
|
|
tx_descr->config_status = cpu_to_le32(DMA_DESCR_TX_OK |
|
|
DMA_DESCR_TX_SOF |
|
|
DMA_DESCR_TX_EOF);
|
|
/* enable TX queue */
|
|
reg_TX_CONTROL(base) = TX_CONTROL_GO | 0x01;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* send a packet
|
|
*/
|
|
static int tsi108_eth_send(struct eth_device *dev, void *packet, int length)
|
|
{
|
|
unsigned long base;
|
|
int timeout;
|
|
struct dma_descriptor *tx_descr;
|
|
unsigned long status;
|
|
|
|
base = dev->iobase;
|
|
tx_descr = &tx_descriptor;
|
|
|
|
/* Wait until the last packet has been transmitted. */
|
|
timeout = 0;
|
|
do {
|
|
/* make sure we see the changes made by the DMA engine */
|
|
invalidate_dcache_range((unsigned long)tx_descr,
|
|
(unsigned long)tx_descr +
|
|
sizeof(struct dma_descriptor));
|
|
|
|
if (timeout != 0)
|
|
udelay (15);
|
|
if (++timeout > 10000) {
|
|
tx_diag_regs(base);
|
|
debug_lev(1,
|
|
"ERROR: timeout waiting for last transmit packet to be sent\n");
|
|
return 0;
|
|
}
|
|
} while (tx_descr->config_status & cpu_to_le32(DMA_DESCR_TX_OWNER));
|
|
|
|
status = le32_to_cpu(tx_descr->config_status);
|
|
if ((status & DMA_DESCR_TX_OK) == 0) {
|
|
#ifdef TX_PRINT_ERRORS
|
|
printf ("TX packet error: 0x%08lx\n %s%s%s%s\n", status,
|
|
status & DMA_DESCR_TX_OK ? "tx error, " : "",
|
|
status & DMA_DESCR_TX_RETRY_LIMIT ?
|
|
"retry limit reached, " : "",
|
|
status & DMA_DESCR_TX_UNDERRUN ? "underrun, " : "",
|
|
status & DMA_DESCR_TX_LATE_COLLISION ? "late collision, "
|
|
: "");
|
|
#endif
|
|
}
|
|
|
|
debug_lev (9, "sending packet %d\n", length);
|
|
tx_descr->start_addr0 = cpu_to_le32((vuint32) packet);
|
|
tx_descr->start_addr1 = 0;
|
|
tx_descr->next_descr_addr0 = 0;
|
|
tx_descr->next_descr_addr1 = cpu_to_le32(DMA_DESCR_LAST);
|
|
tx_descr->vlan_byte_count = cpu_to_le32(length);
|
|
tx_descr->config_status = cpu_to_le32(DMA_DESCR_TX_OWNER |
|
|
DMA_DESCR_TX_CRC |
|
|
DMA_DESCR_TX_PAD |
|
|
DMA_DESCR_TX_SOF |
|
|
DMA_DESCR_TX_EOF);
|
|
|
|
invalidate_dcache_range((unsigned long)tx_descr,
|
|
(unsigned long)tx_descr +
|
|
sizeof(struct dma_descriptor));
|
|
|
|
invalidate_dcache_range((unsigned long)packet,
|
|
(unsigned long)packet + length);
|
|
|
|
reg_TX_QUEUE_0_PTR_LOW(base) = (u32) tx_descr;
|
|
reg_TX_QUEUE_0_PTR_HIGH(base) = TX_QUEUE_0_PTR_HIGH_VALID;
|
|
|
|
return length;
|
|
}
|
|
|
|
/*
|
|
* Check for received packets and send them up the protocal stack
|
|
*/
|
|
static int tsi108_eth_recv (struct eth_device *dev)
|
|
{
|
|
struct dma_descriptor *rx_descr;
|
|
unsigned long base;
|
|
int length = 0;
|
|
unsigned long status;
|
|
uchar *buffer;
|
|
|
|
base = dev->iobase;
|
|
|
|
/* make sure we see the changes made by the DMA engine */
|
|
invalidate_dcache_range ((unsigned long)rx_descr_array,
|
|
(unsigned long)rx_descr_array +
|
|
sizeof(rx_descr_array));
|
|
|
|
/* process all of the received packets */
|
|
rx_descr = rx_descr_current;
|
|
while ((rx_descr->config_status & cpu_to_le32(DMA_DESCR_RX_OWNER)) == 0) {
|
|
/* check for error */
|
|
status = le32_to_cpu(rx_descr->config_status);
|
|
if (status & DMA_DESCR_RX_BAD_FRAME) {
|
|
#ifdef RX_PRINT_ERRORS
|
|
printf ("RX packet error: 0x%08lx\n %s%s%s%s%s%s\n",
|
|
status,
|
|
status & DMA_DESCR_RX_FRAME_IS_TYPE ? "too big, "
|
|
: "",
|
|
status & DMA_DESCR_RX_SHORT_FRAME ? "too short, "
|
|
: "",
|
|
status & DMA_DESCR_RX_BAD_FRAME ? "bad frame, " :
|
|
"",
|
|
status & DMA_DESCR_RX_OVERRUN ? "overrun, " : "",
|
|
status & DMA_DESCR_RX_MAX_FRAME_LEN ?
|
|
"max length, " : "",
|
|
status & DMA_DESCR_RX_CRC_ERROR ? "CRC error, " :
|
|
"");
|
|
#endif
|
|
} else {
|
|
length =
|
|
le32_to_cpu(rx_descr->vlan_byte_count) & 0xFFFF;
|
|
|
|
/*** process packet ***/
|
|
buffer = (uchar *)(le32_to_cpu(rx_descr->start_addr0));
|
|
net_process_received_packet(buffer, length);
|
|
|
|
invalidate_dcache_range ((unsigned long)buffer,
|
|
(unsigned long)buffer +
|
|
RX_BUFFER_SIZE);
|
|
}
|
|
/* Give this buffer back to the DMA engine */
|
|
rx_descr->vlan_byte_count = 0;
|
|
rx_descr->config_status = cpu_to_le32 ((RX_BUFFER_SIZE << 16) |
|
|
DMA_DESCR_RX_OWNER);
|
|
/* move descriptor pointer forward */
|
|
rx_descr =
|
|
(struct dma_descriptor
|
|
*)(le32_to_cpu (rx_descr->next_descr_addr0));
|
|
if (rx_descr == 0)
|
|
rx_descr = &rx_descr_array[0];
|
|
}
|
|
/* remember where we are for next time */
|
|
rx_descr_current = rx_descr;
|
|
|
|
/* If the DMA engine has reached the end of the queue
|
|
* start over at the begining */
|
|
if (reg_RX_EXTENDED_STATUS(base) & RX_EXTENDED_STATUS_EOQ_0) {
|
|
|
|
reg_RX_EXTENDED_STATUS(base) = RX_EXTENDED_STATUS_EOQ_0;
|
|
reg_RX_QUEUE_0_PTR_LOW(base) = (u32) & rx_descr_array[0];
|
|
reg_RX_QUEUE_0_PTR_HIGH(base) = RX_QUEUE_0_PTR_HIGH_VALID;
|
|
}
|
|
|
|
return length;
|
|
}
|
|
|
|
/*
|
|
* disable an ethernet interface
|
|
*/
|
|
static void tsi108_eth_halt (struct eth_device *dev)
|
|
{
|
|
unsigned long base;
|
|
|
|
base = dev->iobase;
|
|
|
|
/* Put DMA/FIFO into reset state. */
|
|
reg_TX_CONFIG(base) = TX_CONFIG_RST;
|
|
reg_RX_CONFIG(base) = RX_CONFIG_RST;
|
|
|
|
/* Put MAC into reset state. */
|
|
reg_MAC_CONFIG_1(base) = MAC_CONFIG_1_SOFT_RESET;
|
|
}
|