diff options
Diffstat (limited to 'board/siemens/IAD210/atm.c')
-rw-r--r-- | board/siemens/IAD210/atm.c | 652 |
1 files changed, 0 insertions, 652 deletions
diff --git a/board/siemens/IAD210/atm.c b/board/siemens/IAD210/atm.c deleted file mode 100644 index 40aad0ac26..0000000000 --- a/board/siemens/IAD210/atm.c +++ /dev/null @@ -1,652 +0,0 @@ -#include <common.h> -#include <mpc8xx.h> -#include <commproc.h> - -#include "atm.h" -#include <linux/stddef.h> - -#define SYNC __asm__("sync") -#define MY_ALIGN(p, a) ((char *)(((uint32)(p)+(a)-1) & ~((uint32)(a)-1))) - -#define FALSE 1 -#define TRUE 0 -#define OK 0 -#define ERROR -1 - -struct atm_connection_t g_conn[NUM_CONNECTIONS] = -{ - { NULL, 10, NULL, 10, NULL, NULL, NULL, NULL }, /* OAM */ -}; - -struct atm_driver_t g_atm = -{ - FALSE, /* loaded */ - FALSE, /* started */ - NULL, /* csram */ - 0, /* csram_size */ - NULL, /* am_top */ - NULL, /* ap_top */ - NULL, /* int_reload_ptr */ - NULL, /* int_serv_ptr */ - NULL, /* rbd_base_ptr */ - NULL, /* tbd_base_ptr */ - 0 /* linerate */ -}; - -char csram[1024]; /* more than enough for doing nothing*/ - -int atmLoad(void); -void atmUnload(void); -int atmMemInit(void); -void atmIntInit(void); -void atmApcInit(void); -void atmAmtInit(void); -void atmCpmInit(void); -void atmUtpInit(void); - -/***************************************************************************** - * - * FUNCTION NAME: atmLoad - * - * DESCRIPTION: Basic ATM initialization. - * - * PARAMETERS: none - * - * RETURNS: OK or ERROR - * - ****************************************************************************/ -int atmLoad() -{ - volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR; - volatile cpmtimer8xx_t *timers = &immap->im_cpmtimer; - volatile iop8xx_t *iop = &immap->im_ioport; - - timers->cpmt_tgcr &= 0x0FFF; SYNC; /* Disable Timer 4 */ - immap->im_cpm.cp_scc[3].scc_gsmrl = 0x0; SYNC; /* Disable SCC4 */ - iop->iop_pdpar &= 0x3FFF; SYNC; /* Disable SAR and UTOPIA */ - - if ( atmMemInit() != OK ) return ERROR; - - atmIntInit(); - atmApcInit(); - atmAmtInit(); - atmCpmInit(); - atmUtpInit(); - - g_atm.loaded = TRUE; - - return OK; -} - -/***************************************************************************** - * - * FUNCTION NAME: atmUnload - * - * DESCRIPTION: Disables ATM and UTOPIA. - * - * PARAMETERS: none - * - * RETURNS: void - * - ****************************************************************************/ -void atmUnload() -{ - volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR; - volatile cpmtimer8xx_t *timers = &immap->im_cpmtimer; - volatile iop8xx_t *iop = &immap->im_ioport; - - timers->cpmt_tgcr &= 0x0FFF; SYNC; /* Disable Timer 4 */ - immap->im_cpm.cp_scc[3].scc_gsmrl = 0x0; SYNC; /* Disable SCC4 */ - iop->iop_pdpar &= 0x3FFF; SYNC; /* Disable SAR and UTOPIA */ - g_atm.loaded = FALSE; -} - -/***************************************************************************** - * - * FUNCTION NAME: atmMemInit - * - * DESCRIPTION: - * - * The ATM driver uses the following resources: - * - * A. Memory in DPRAM to hold - * - * 1/ CT = Connection Table ( RCT & TCT ) - * 2/ TCTE = Transmit Connection Table Extension - * 3/ MPHYPT = Multi-PHY Pointing Table - * 4/ APCP = APC Parameter Table - * 5/ APCT_PRIO_1 = APC Table ( priority 1 for AAL1/2 ) - * 6/ APCT_PRIO_2 = APC Table ( priority 2 for VBR ) - * 7/ APCT_PRIO_3 = APC Table ( priority 3 for UBR ) - * 8/ TQ = Transmit Queue - * 9/ AM = Address Matching Table - * 10/ AP = Address Pointing Table - * - * B. Memory in cache safe RAM to hold - * - * 1/ INT = Interrupt Queue - * 2/ RBD = Receive Buffer Descriptors - * 3/ TBD = Transmit Buffer Descriptors - * - * This function - * 1. clears the ATM DPRAM area, - * 2. Allocates and clears cache safe memory, - * 3. Initializes 'g_conn'. - * - * PARAMETERS: none - * - * RETURNS: OK or ERROR - * - ****************************************************************************/ -int atmMemInit() -{ - int i; - unsigned immr = CONFIG_SYS_IMMR; - int total_num_rbd = 0; - int total_num_tbd = 0; - - memset((char *)CONFIG_SYS_IMMR + 0x2000 + ATM_DPRAM_BEGIN, 0x00, ATM_DPRAM_SIZE); - - g_atm.csram_size = NUM_INT_ENTRIES * SIZE_OF_INT_ENTRY; - - for ( i = 0; i < NUM_CONNECTIONS; ++i ) { - total_num_rbd += g_conn[i].num_rbd; - total_num_tbd += g_conn[i].num_tbd; - } - - g_atm.csram_size += total_num_rbd * SIZE_OF_RBD + total_num_tbd * SIZE_OF_TBD + 4; - - g_atm.csram = &csram[0]; - memset(&(g_atm.csram), 0x00, g_atm.csram_size); - - g_atm.int_reload_ptr = (uint32 *)MY_ALIGN(g_atm.csram, 4); - g_atm.rbd_base_ptr = (struct atm_bd_t *)(g_atm.int_reload_ptr + NUM_INT_ENTRIES); - g_atm.tbd_base_ptr = (struct atm_bd_t *)(g_atm.rbd_base_ptr + total_num_rbd); - - g_conn[0].rbd_ptr = g_atm.rbd_base_ptr; - g_conn[0].tbd_ptr = g_atm.tbd_base_ptr; - g_conn[0].ct_ptr = CT_PTR(immr); - g_conn[0].tcte_ptr = TCTE_PTR(immr); - - return OK; -} - -/***************************************************************************** - * - * FUNCTION NAME: atmIntInit - * - * DESCRIPTION: - * - * Initialization of the MPC860 ESAR Interrupt Queue. - * This function - * - clears all entries in the INT, - * - sets the WRAP bit of the last INT entry, - * - initializes the 'int_serv_ptr' attribuut of the AtmDriver structure - * to the first INT entry. - * - * PARAMETERS: none - * - * RETURNS: void - * - * REMARKS: - * - * - The INT resides in external cache safe memory. - * - The base address of the INT is stored in g_atm.int_reload_ptr. - * - The number of entries in the INT is given by NUM_INT_ENTRIES. - * - The INTBASE field in SAR Parameter RAM is set by atmCpmInit(). - * - ****************************************************************************/ -void atmIntInit() -{ - int i; - for ( i = 0; i < NUM_INT_ENTRIES - 1; ++i) g_atm.int_reload_ptr[i] = 0; - g_atm.int_reload_ptr[i] = INT_WRAP; - g_atm.int_serv_ptr = g_atm.int_reload_ptr; -} - -/***************************************************************************** - * - * FUNCTION NAME: atmApcInit - * - * DESCRIPTION: - * - * This function initializes the following ATM Pace Controller related - * data structures: - * - * - 1 MPHY Pointing Table (contains only one entry) - * - 3 APC Parameter Tables (one PHY with 3 priorities) - * - 3 APC Tables (one table for each priority) - * - 1 Transmit Queue (one transmit queue per PHY) - * - * PARAMETERS: none - * - * RETURNS: void - * - ****************************************************************************/ -void atmApcInit() -{ - int i; - /* unsigned immr = CONFIG_SYS_IMMR; */ - uint16 * mphypt_ptr = MPHYPT_PTR(CONFIG_SYS_IMMR); - struct apc_params_t * apcp_ptr = APCP_PTR(CONFIG_SYS_IMMR); - uint16 * apct_prio1_ptr = APCT1_PTR(CONFIG_SYS_IMMR); - uint16 * tq_ptr = TQ_PTR(CONFIG_SYS_IMMR); - /***************************************************/ - /* Initialize MPHY Pointing Table (only one entry) */ - /***************************************************/ - *mphypt_ptr = APCP_BASE; - - /********************************************/ - /* Initialize APC parameters for priority 1 */ - /********************************************/ - apcp_ptr->apct_base1 = APCT_PRIO_1_BASE; - apcp_ptr->apct_end1 = APCT_PRIO_1_BASE + NUM_APCT_PRIO_1_ENTRIES * 2; - apcp_ptr->apct_ptr1 = APCT_PRIO_1_BASE; - apcp_ptr->apct_sptr1 = APCT_PRIO_1_BASE; - apcp_ptr->etqbase = TQ_BASE; - apcp_ptr->etqend = TQ_BASE + ( NUM_TQ_ENTRIES - 1 ) * 2; - apcp_ptr->etqaptr = TQ_BASE; - apcp_ptr->etqtptr = TQ_BASE; - apcp_ptr->apc_mi = 8; - apcp_ptr->ncits = 0x0100; /* NCITS = 1 */ - apcp_ptr->apcnt = 0; - apcp_ptr->reserved1 = 0; - apcp_ptr->eapcst = 0x2009; /* LAST, ESAR, MPHY */ - apcp_ptr->ptp_counter = 0; - apcp_ptr->ptp_txch = 0; - apcp_ptr->reserved2 = 0; - - - /***************************************************/ - /* Initialize APC Tables with empty slots (0xFFFF) */ - /***************************************************/ - for ( i = 0; i < NUM_APCT_PRIO_1_ENTRIES; ++i ) *(apct_prio1_ptr++) = 0xFFFF; - - /************************/ - /* Clear Transmit Queue */ - /************************/ - for ( i = 0; i < NUM_TQ_ENTRIES; ++i ) *(tq_ptr++) = 0; -} - -/***************************************************************************** - * - * FUNCTION NAME: atmAmtInit - * - * DESCRIPTION: - * - * This function clears the first entry in the Address Matching Table and - * lets the first entry in the Address Pointing table point to the first - * entry in the TCT table (i.e. the raw cell channel). - * - * PARAMETERS: none - * - * RETURNS: void - * - * REMARKS: - * - * The values for the AMBASE, AMEND and APBASE registers in SAR parameter - * RAM are initialized by atmCpmInit(). - * - ****************************************************************************/ -void atmAmtInit() -{ - unsigned immr = CONFIG_SYS_IMMR; - - g_atm.am_top = AM_PTR(immr); - g_atm.ap_top = AP_PTR(immr); - - *(g_atm.ap_top--) = CT_BASE; - *(g_atm.am_top--) = 0; -} - -/***************************************************************************** - * - * FUNCTION NAME: atmCpmInit - * - * DESCRIPTION: - * - * This function initializes the Utopia Interface Parameter RAM Map - * (SCC4, ATM Protocol) of the Communication Processor Modudule. - * - * PARAMETERS: none - * - * RETURNS: void - * - ****************************************************************************/ -void atmCpmInit() -{ - unsigned immr = CONFIG_SYS_IMMR; - - memset((char *)immr + 0x3F00, 0x00, 0xC0); - - /*-----------------------------------------------------------------*/ - /* RBDBASE - Receive buffer descriptors base address */ - /* The RBDs reside in cache safe external memory. */ - /*-----------------------------------------------------------------*/ - *RBDBASE(immr) = (uint32)g_atm.rbd_base_ptr; - - /*-----------------------------------------------------------------*/ - /* SRFCR - SAR receive function code */ - /* 0-2 rsvd = 000 */ - /* 3-4 BO = 11 Byte ordering (big endian). */ - /* 5-7 FC = 000 Value driven on the address type signals AT[1-3] */ - /* when the SDMA channel accesses memory. */ - /*-----------------------------------------------------------------*/ - *SRFCR(immr) = 0x18; - - /*-----------------------------------------------------------------*/ - /* SRSTATE - SAR receive status */ - /* 0 EXT = 0 Extended mode off. */ - /* 1 ACP = 0 Valid only if EXT = 1. */ - /* 2 EC = 0 Standard 53-byte ATM cell. */ - /* 3 SNC = 0 In sync. Must be set to 0 during initialization. */ - /* 4 ESAR = 1 Enhanced SAR functionality enabled. */ - /* 5 MCF = 1 Management Cell Filter active. */ - /* 6 SER = 0 UTOPIA mode. */ - /* 7 MPY = 1 Multiple PHY mode. */ - /*-----------------------------------------------------------------*/ - *SRSTATE(immr) = 0x0D; - - /*-----------------------------------------------------------------*/ - /* MRBLR - Maximum receive buffer length register. */ - /* Must be cleared for ATM operation (see also SMRBLR). */ - /*-----------------------------------------------------------------*/ - *MRBLR(immr) = 0; - - /*-----------------------------------------------------------------*/ - /* RSTATE - SCC internal receive state parameters */ - /* The first byte must be initialized with the value of SRFCR. */ - /*-----------------------------------------------------------------*/ - *RSTATE(immr) = (uint32)(*SRFCR(immr)) << 24; - - /*-----------------------------------------------------------------*/ - /* STFCR - SAR transmit function code */ - /* 0-2 rsvd = 000 */ - /* 3-4 BO = 11 Byte ordering (big endian). */ - /* 5-7 FC = 000 Value driven on the address type signals AT[1-3] */ - /* when the SDMA channel accesses memory. */ - /*-----------------------------------------------------------------*/ - *STFCR(immr) = 0x18; - - /*-----------------------------------------------------------------*/ - /* SRSTATE - SAR transmit status */ - /* 0 EXT = 0 : Extended mode off */ - /* 1 rsvd = 0 : */ - /* 2 EC = 0 : Standard 53-byte ATM cell */ - /* 3 rsvd = 0 : */ - /* 4 ESAR = 1 : Enhanced SAR functionality enabled */ - /* 5 rsvd = 0 : */ - /* 6 SER = 0 : UTOPIA mode */ - /* 7 MPY = 1 : Multiple PHY mode */ - /*-----------------------------------------------------------------*/ - *STSTATE(immr) = 0x09; - - /*-----------------------------------------------------------------*/ - /* TBDBASE - Transmit buffer descriptors base address */ - /* The TBDs reside in cache safe external memory. */ - /*-----------------------------------------------------------------*/ - *TBDBASE(immr) = (uint32)g_atm.tbd_base_ptr; - - /*-----------------------------------------------------------------*/ - /* TSTATE - SCC internal transmit state parameters */ - /* The first byte must be initialized with the value of STFCR. */ - /*-----------------------------------------------------------------*/ - *TSTATE(immr) = (uint32)(*STFCR(immr)) << 24; - - /*-----------------------------------------------------------------*/ - /* CTBASE - Connection table base address */ - /* Offset from the beginning of DPRAM (64-byte aligned). */ - /*-----------------------------------------------------------------*/ - *CTBASE(immr) = CT_BASE; - - /*-----------------------------------------------------------------*/ - /* INTBASE - Interrupt queue base pointer. */ - /* The interrupt queue resides in cache safe external memory. */ - /*-----------------------------------------------------------------*/ - *INTBASE(immr) = (uint32)g_atm.int_reload_ptr; - - /*-----------------------------------------------------------------*/ - /* INTPTR - Pointer into interrupt queue. */ - /* Initialize to INTBASE. */ - /*-----------------------------------------------------------------*/ - *INTPTR(immr) = *INTBASE(immr); - - /*-----------------------------------------------------------------*/ - /* C_MASK - Constant mask for CRC32 */ - /* Must be initialized to 0xDEBB20E3. */ - /*-----------------------------------------------------------------*/ - *C_MASK(immr) = 0xDEBB20E3; - - /*-----------------------------------------------------------------*/ - /* INT_ICNT - Interrupt threshold value */ - /*-----------------------------------------------------------------*/ - *INT_ICNT(immr) = 1; - - /*-----------------------------------------------------------------*/ - /* INT_CNT - Interrupt counter */ - /* Initalize to INT_ICNT. Decremented for each interrupt entry */ - /* reported in the interrupt queue. On zero an interrupt is */ - /* signaled to the host by setting the GINT bit in the event */ - /* register. The counter is reinitialized with INT_ICNT. */ - /*-----------------------------------------------------------------*/ - *INT_CNT(immr) = *INT_ICNT(immr); - - /*-----------------------------------------------------------------*/ - /* SMRBLR - SAR maximum receive buffer length register. */ - /* Must be a multiple of 48 bytes. Common for all ATM connections. */ - /*-----------------------------------------------------------------*/ - *SMRBLR(immr) = SAR_RXB_SIZE; - - /*-----------------------------------------------------------------*/ - /* APCST - APC status register. */ - /* 0 rsvd 0 */ - /* 1-2 CSER 11 Initialize with the same value as NSER. */ - /* 3-4 NSER 11 Next serial or UTOPIA channel. */ - /* 5-7 rsvd 000 */ - /* 8-10 rsvd 000 */ - /* 11 rsvd 0 */ - /* 12 ESAR 1 UTOPIA Level 2 MPHY enabled. */ - /* 13 DIS 0 APC disable. Must be initiazed to 0. */ - /* 14 PL2 0 Not used. */ - /* 15 MPY 1 Multiple PHY mode on. */ - /*-----------------------------------------------------------------*/ - *APCST(immr) = 0x7809; - - /*-----------------------------------------------------------------*/ - /* APCPTR - Pointer to the APC parameter table */ - /* In MPHY master mode this parameter points to the MPHY pointing */ - /* table. 2-byte aligned. */ - /*-----------------------------------------------------------------*/ - *APCPTR(immr) = MPHYPT_BASE; - - /*-----------------------------------------------------------------*/ - /* HMASK - Header mask */ - /* Each incoming cell is masked with HMASK before being compared */ - /* to the entries in the address matching table. */ - /*-----------------------------------------------------------------*/ - *HMASK(immr) = AM_HMASK; - - /*-----------------------------------------------------------------*/ - /* AMBASE - Address matching table base address */ - /*-----------------------------------------------------------------*/ - *AMBASE(immr) = AM_BASE; - - /*-----------------------------------------------------------------*/ - /* AMEND - Address matching table end address */ - /*-----------------------------------------------------------------*/ - *AMEND(immr) = AM_BASE; - - /*-----------------------------------------------------------------*/ - /* APBASE - Address pointing table base address */ - /*-----------------------------------------------------------------*/ - *APBASE(immr) = AP_BASE; - - /*-----------------------------------------------------------------*/ - /* MPHYST - MPHY status register */ - /* 0-1 rsvd 00 */ - /* 2-6 NMPHY 00000 1 PHY */ - /* 7-9 rsvd 000 */ - /* 10-14 CMPHY 00000 Initialize with same value as NMPHY */ - /*-----------------------------------------------------------------*/ - *MPHYST(immr) = 0x0000; - - /*-----------------------------------------------------------------*/ - /* TCTEBASE - Transmit connection table extension base address */ - /* Offset from the beginning of DPRAM (32-byte aligned). */ - /*-----------------------------------------------------------------*/ - *TCTEBASE(immr) = TCTE_BASE; - - /*-----------------------------------------------------------------*/ - /* Clear not used registers. */ - /*-----------------------------------------------------------------*/ -} - -/***************************************************************************** - * - * FUNCTION NAME: atmUtpInit - * - * DESCRIPTION: - * - * This function initializes the ATM interface for - * - * - UTOPIA mode - * - muxed bus - * - master operation - * - multi PHY (because of a bug in the MPC860P rev. E.0) - * - internal clock = SYSCLK / 2 - * - * EXTERNAL EFFECTS: - * - * After calling this function, the MPC860ESAR UTOPIA bus is - * active and uses the following ports/pins: - * - * Port Pin Signal Description - * ------ --- ------- ------------------------------------------- - * PB[15] R17 TxClav Transmit cell available input/output signal - * PC[15] D16 RxClav Receive cell available input/output signal - * PD[15] U17 UTPB[0] UTOPIA bus bit 0 input/output signal - * PD[14] V19 UTPB[1] UTOPIA bus bit 1 input/output signal - * PD[13] V18 UTPB[2] UTOPIA bus bit 2 input/output signal - * PD[12] R16 UTPB[3] UTOPIA bus bit 3 input/output signal - * PD[11] T16 RXENB Receive enable input/output signal - * PD[10] W18 TXENB Transmit enable input/output signal - * PD[9] V17 UTPCLK UTOPIA clock input/output signal - * PD[7] T15 UTPB[4] UTOPIA bus bit 4 input/output signal - * PD[6] V16 UTPB[5] UTOPIA bus bit 5 input/output signal - * PD[5] U15 UTPB[6] UTOPIA bus bit 6 input/output signal - * PD[4] U16 UTPB[7] UTOPIA bus bit 7 input/output signal - * PD[3] W16 SOC Start of cell input/output signal - * - * PARAMETERS: none - * - * RETURNS: void - * - * REMARK: - * - * The ATM parameters and data structures must be configured before - * initializing the UTOPIA port. The UTOPIA port activates immediately - * upon initialization, and if its associated data structures are not - * initialized, the CPM will lock up. - * - ****************************************************************************/ -void atmUtpInit() -{ - volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR; - volatile iop8xx_t *iop = &immap->im_ioport; - volatile car8xx_t *car = &immap->im_clkrst; - volatile cpm8xx_t *cpm = &immap->im_cpm; - int flag; - - flag = disable_interrupts(); - - /*-----------------------------------------------------------------*/ - /* SCCR - System Clock Control Register */ - /* */ - /* The UTOPIA clock can be selected to be internal clock or */ - /* external clock (selected by the UTOPIA mode register). */ - /* In case of internal clock, the UTOPIA clock is derived from */ - /* the system frequency divided by two dividers. */ - /* Bits 27-31 of the SCCR register are defined to control the */ - /* UTOPIA clock. */ - /* */ - /* SCCR[27:29] DFUTP Division factor. Divide the system clock */ - /* by 2^DFUTP. */ - /* SCCR[30:31] DFAUTP Additional division factor. Divide the */ - /* system clock by the following value: */ - /* 00 = divide by 1 */ - /* 00 = divide by 3 */ - /* 10 = divide by 5 */ - /* 11 = divide by 7 */ - /* */ - /* Note that the UTOPIA clock must be programmed as to operate */ - /* within the range SYSCLK/10 .. 50MHz. */ - /*-----------------------------------------------------------------*/ - car->car_sccr &= 0xFFFFFFE0; - car->car_sccr |= 0x00000008; /* UTPCLK = SYSCLK / 4 */ - - /*-----------------------------------------------------------------*/ - /* RCCR - RISC Controller Configuration Register */ - /* */ - /* RCCR[8] DR1M IDMA Request 0 Mode */ - /* 0 = edge sensitive */ - /* 1 = level sensitive */ - /* RCCR[9] DR0M IDMA Request 0 Mode */ - /* 0 = edge sensitive */ - /* 1 = level sensitive */ - /* RCCR[10:11] DRQP IDMA Request Priority */ - /* 00 = IDMA req. have more prio. than SCCs */ - /* 01 = IDMA req. have less prio. then SCCs */ - /* 10 = IDMA requests have the lowest prio. */ - /* 11 = reserved */ - /* */ - /* The RCCR[DR0M] and RCCR[DR1M] bits must be set to enable UTOPIA */ - /* operation. Also, program RCCR[DPQP] to 01 to give SCC transfers */ - /* higher priority. */ - /*-----------------------------------------------------------------*/ - cpm->cp_rccr &= 0xFF0F; - cpm->cp_rccr |= 0x00D0; - - /*-----------------------------------------------------------------*/ - /* Port B - TxClav Signal */ - /*-----------------------------------------------------------------*/ - cpm->cp_pbpar |= 0x00010000; /* PBPAR[15] = 1 */ - cpm->cp_pbdir &= 0xFFFEFFFF; /* PBDIR[15] = 0 */ - - /*-----------------------------------------------------------------*/ - /* UTOPIA Mode Register */ - /* */ - /* - muxed bus (master operation only) */ - /* - multi PHY (because of a bug in the MPC860P rev.E.0) */ - /* - internal clock */ - /* - no loopback */ - /* - do no activate statistical counters */ - /*-----------------------------------------------------------------*/ - iop->utmode = 0x00000004; SYNC; - - /*-----------------------------------------------------------------*/ - /* Port D - UTOPIA Data and Control Signals */ - /* */ - /* 15-12 UTPB[0:3] UTOPIA bus bit 0 - 3 input/output signals */ - /* 11 RXENB UTOPIA receive enable input/output signal */ - /* 10 TXENB UTOPIA transmit enable input/output signal */ - /* 9 TUPCLK UTOPIA clock input/output signal */ - /* 8 MII-MDC Used by MII in simult. MII and UTOPIA operation */ - /* 7-4 UTPB[4:7] UTOPIA bus bit 4 - 7 input/output signals */ - /* 3 SOC UTOPIA Start of cell input/output signal */ - /* 2 Reserved */ - /* 1 Enable UTOPIA mode */ - /* 0 Enable SAR */ - /*-----------------------------------------------------------------*/ - iop->iop_pdpar |= 0xDF7F; SYNC; - iop->iop_pddir &= 0x2080; SYNC; - - /*-----------------------------------------------------------------*/ - /* Port C - RxClav Signal */ - /*-----------------------------------------------------------------*/ - iop->iop_pcpar |= 0x0001; /* PCPAR[15] = 1 */ - iop->iop_pcdir &= 0xFFFE; /* PCDIR[15] = 0 */ - iop->iop_pcso &= 0xFFFE; /* PCSO[15] = 0 */ - - if (flag) - enable_interrupts(); -} |