📄 cpm_8260.h.bak
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/*
* MPC8260 Communication Processor Module.
* Copyright (c) 1999 Dan Malek (dmalek@jlc.net)
*
* This file contains structures and information for the communication
* processor channels found in the dual port RAM or parameter RAM.
* All CPM control and status is available through the MPC8260 internal
* memory map. See immap.h for details.
*/
#ifdef __KERNEL__
#ifndef __CPM_82XX__
#define __CPM_82XX__
#include <asm/immap_8260.h>
/* CPM Command register.
*/
#define CPM_CR_RST ((uint)0x80000000)
#define CPM_CR_PAGE ((uint)0x7c000000)
#define CPM_CR_SBLOCK ((uint)0x03e00000)
#define CPM_CR_FLG ((uint)0x00010000)
#define CPM_CR_MCN ((uint)0x00003fc0)
#define CPM_CR_OPCODE ((uint)0x0000000f)
/* Device sub-block and page codes.
*/
#define CPM_CR_SCC1_SBLOCK (0x04)
#define CPM_CR_SCC2_SBLOCK (0x05)
#define CPM_CR_SCC3_SBLOCK (0x06)
#define CPM_CR_SCC4_SBLOCK (0x07)
#define CPM_CR_SMC1_SBLOCK (0x08)
#define CPM_CR_SMC2_SBLOCK (0x09)
#define CPM_CR_SPI_SBLOCK (0x0a)
#define CPM_CR_I2C_SBLOCK (0x0b)
#define CPM_CR_TIMER_SBLOCK (0x0f)
#define CPM_CR_RAND_SBLOCK (0x0e)
#define CPM_CR_FCC1_SBLOCK (0x10)
#define CPM_CR_FCC2_SBLOCK (0x11)
#define CPM_CR_FCC3_SBLOCK (0x12)
#define CPM_CR_IDMA1_SBLOCK (0x14)
#define CPM_CR_IDMA2_SBLOCK (0x15)
#define CPM_CR_IDMA3_SBLOCK (0x16)
#define CPM_CR_IDMA4_SBLOCK (0x17)
#define CPM_CR_MCC1_SBLOCK (0x1c)
#define CPM_CR_SCC1_PAGE (0x00)
#define CPM_CR_SCC2_PAGE (0x01)
#define CPM_CR_SCC3_PAGE (0x02)
#define CPM_CR_SCC4_PAGE (0x03)
#define CPM_CR_SMC1_PAGE (0x07)
#define CPM_CR_SMC2_PAGE (0x08)
#define CPM_CR_SPI_PAGE (0x09)
#define CPM_CR_I2C_PAGE (0x0a)
#define CPM_CR_TIMER_PAGE (0x0a)
#define CPM_CR_RAND_PAGE (0x0a)
#define CPM_CR_FCC1_PAGE (0x04)
#define CPM_CR_FCC2_PAGE (0x05)
#define CPM_CR_FCC3_PAGE (0x06)
#define CPM_CR_IDMA1_PAGE (0x07)
#define CPM_CR_IDMA2_PAGE (0x08)
#define CPM_CR_IDMA3_PAGE (0x09)
#define CPM_CR_IDMA4_PAGE (0x0a)
#define CPM_CR_MCC1_PAGE (0x07)
#define CPM_CR_MCC2_PAGE (0x08)
/* Some opcodes (there are more...later)
*/
#define CPM_CR_INIT_TRX ((ushort)0x0000)
#define CPM_CR_INIT_RX ((ushort)0x0001)
#define CPM_CR_INIT_TX ((ushort)0x0002)
#define CPM_CR_HUNT_MODE ((ushort)0x0003)
#define CPM_CR_STOP_TX ((ushort)0x0004)
#define CPM_CR_RESTART_TX ((ushort)0x0006)
#define CPM_CR_SET_GADDR ((ushort)0x0008)
#define CPM_CR_START_IDMA ((ushort)0x0009)#define CPM_CR_STOP_IDMA ((ushort)0x000b)
#define mk_cr_cmd(PG, SBC, MCN, OP) \
((PG << 26) | (SBC << 21) | (MCN << 6) | OP)
/* Dual Port RAM addresses. The first 16K is available for almost
* any CPM use, so we put the BDs there. The first 128 bytes are
* used for SMC1 and SMC2 parameter RAM, so we start allocating
* BDs above that. The last 64 bytes are reserved for I2C parameter
* RAM. All of this must change when we start downloading RAM microcode.
*/
#ifdef CONFIG_MPC8272ADS#define CPM_DATAONLY_BASE ((uint)0x0)#define CPM_DATAONLY_SIZE ((uint)0x2000 - CPM_DATAONLY_BASE)#define CPM_DP_NOSPACE ((uint)0x7fffffff)#define CPM_FCC_SPECIAL_BASE ((uint)0x00009000)#else#define CPM_DATAONLY_BASE ((uint)0xB800)#define CPM_DATAONLY_SIZE ((uint)0xC000 - CPM_DATAONLY_BASE)#define CPM_DP_NOSPACE ((uint)0x7fffffff)#define CPM_FCC_SPECIAL_BASE ((uint)0x0000b000)#endif
/*
#define CPM_DATAONLY_BASE ((uint)128)
#define CPM_DATAONLY_SIZE ((uint)(16 * 1024) - CPM_DATAONLY_BASE - 64)
#define CPM_DP_NOSPACE ((uint)0x7fffffff)
#define CPM_FCC_SPECIAL_BASE ((uint)0x0000b000)
*/
/* The number of pages of host memory we allocate for CPM. This is
* done early in kernel initialization to get physically contiguous
* pages.
*/
#define NUM_CPM_HOST_PAGES 2
/* Export the base address of the communication processor registers
* and dual port ram.
*/
extern cpm8260_t *cpmp; /* Pointer to comm processor */
uint m8260_cpm_dpalloc(uint size, uint align);
uint m8260_cpm_hostalloc(uint size, uint align);
void m8260_cpm_setbrg(uint brg, uint rate);
void m8260_cpm_fastbrg(uint brg, uint rate, int div16);
/* Buffer descriptors used by many of the CPM protocols.
*/
typedef struct cpm_buf_desc {
ushort cbd_sc; /* Status and Control */
ushort cbd_datlen; /* Data length in buffer */
uint cbd_bufaddr; /* Buffer address in host memory */
} cbd_t;
#define BD_SC_EMPTY ((ushort)0x8000) /* Receive is empty */
#define BD_SC_READY ((ushort)0x8000) /* Transmit is ready */
#define BD_SC_WRAP ((ushort)0x2000) /* Last buffer descriptor */
#define BD_SC_INTRPT ((ushort)0x1000) /* Interrupt on change */
#define BD_SC_LAST ((ushort)0x0800) /* Last buffer in frame */
#define BD_SC_CM ((ushort)0x0200) /* Continous mode */
#define BD_SC_ID ((ushort)0x0100) /* Rec'd too many idles */
#define BD_SC_P ((ushort)0x0100) /* xmt preamble */
#define BD_SC_BR ((ushort)0x0020) /* Break received */
#define BD_SC_FR ((ushort)0x0010) /* Framing error */
#define BD_SC_PR ((ushort)0x0008) /* Parity error */
#define BD_SC_OV ((ushort)0x0002) /* Overrun */
#define BD_SC_CD ((ushort)0x0001) /* ?? */
/* Function code bits, usually generic to devices.
*/
#define CPMFCR_GBL ((u_char)0x20) /* Set memory snooping */
#define CPMFCR_EB ((u_char)0x10) /* Set big endian byte order */
#define CPMFCR_TC2 ((u_char)0x04) /* Transfer code 2 value */
#define CPMFCR_DTB ((u_char)0x02) /* Use local bus for data when set */
#define CPMFCR_BDB ((u_char)0x01) /* Use local bus for BD when set */
/* Parameter RAM offsets from the base.
*/
#define PROFF_SCC1 ((uint)0x8000)
#define PROFF_SCC2 ((uint)0x8100)
#define PROFF_SCC3 ((uint)0x8200)
#define PROFF_SCC4 ((uint)0x8300)
#define PROFF_FCC1 ((uint)0x8400)
#define PROFF_FCC2 ((uint)0x8500)
#define PROFF_FCC3 ((uint)0x8600)
#define PROFF_MCC1 ((uint)0x8700)
#define PROFF_SMC1_BASE ((uint)0x87fc)
#define PROFF_IDMA1_BASE ((uint)0x87fe)
#define PROFF_MCC2 ((uint)0x8800)
#define PROFF_SMC2_BASE ((uint)0x88fc)
#define PROFF_IDMA2_BASE ((uint)0x88fe)
#define PROFF_SPI_BASE ((uint)0x89fc)
#define PROFF_IDMA3_BASE ((uint)0x89fe)
#define PROFF_TIMERS ((uint)0x8ae0)
#define PROFF_REVNUM ((uint)0x8af0)
#define PROFF_RAND ((uint)0x8af8)
#define PROFF_I2C_BASE ((uint)0x8afc)
#define PROFF_IDMA4_BASE ((uint)0x8afe)
/* The SMCs are relocated to any of the first eight DPRAM pages.
* We will fix these at the first locations of DPRAM, until we
* get some microcode patches :-).
* The parameter ram space for the SMCs is fifty-some bytes, and
* they are required to start on a 64 byte boundary.
*/
#define PROFF_SMC1 (0)
/* 8248PC : fixed SMC2_PARAM_BASE to SCC1_PARAM_BASE in DPRAM as SCC1 is unused *//* #define PROFF_SMC2 (64) */#define PROFF_SMC2 PROFF_SCC1
#define PROFF_I2C ((16 * 1024) - 64)
#define PROFF_SPI ((16 * 1024) - 128)
/* Define enough so I can at least use the serial port as a UART.
*/
typedef struct smc_uart {
ushort smc_rbase; /* Rx Buffer descriptor base address */
ushort smc_tbase; /* Tx Buffer descriptor base address */
u_char smc_rfcr; /* Rx function code */
u_char smc_tfcr; /* Tx function code */
ushort smc_mrblr; /* Max receive buffer length */
uint smc_rstate; /* Internal */
uint smc_idp; /* Internal */
ushort smc_rbptr; /* Internal */
ushort smc_ibc; /* Internal */
uint smc_rxtmp; /* Internal */
uint smc_tstate; /* Internal */
uint smc_tdp; /* Internal */
ushort smc_tbptr; /* Internal */
ushort smc_tbc; /* Internal */
uint smc_txtmp; /* Internal */
ushort smc_maxidl; /* Maximum idle characters */
ushort smc_tmpidl; /* Temporary idle counter */
ushort smc_brklen; /* Last received break length */
ushort smc_brkec; /* rcv'd break condition counter */
ushort smc_brkcr; /* xmt break count register */
ushort smc_rmask; /* Temporary bit mask */
uint smc_stmp; /* SDMA Temp */
} smc_uart_t;
/* SMC uart mode register (Internal memory map).
*/
#define SMCMR_REN ((ushort)0x0001)
#define SMCMR_TEN ((ushort)0x0002)
#define SMCMR_DM ((ushort)0x000c)
#define SMCMR_SM_GCI ((ushort)0x0000)
#define SMCMR_SM_UART ((ushort)0x0020)
#define SMCMR_SM_TRANS ((ushort)0x0030)
#define SMCMR_SM_MASK ((ushort)0x0030)
#define SMCMR_PM_EVEN ((ushort)0x0100) /* Even parity, else odd */
#define SMCMR_REVD SMCMR_PM_EVEN
#define SMCMR_PEN ((ushort)0x0200) /* Parity enable */
#define SMCMR_BS SMCMR_PEN
#define SMCMR_SL ((ushort)0x0400) /* Two stops, else one */
#define SMCR_CLEN_MASK ((ushort)0x7800) /* Character length */
#define smcr_mk_clen(C) (((C) << 11) & SMCR_CLEN_MASK)
/* SMC Event and Mask register.
*/
#define SMCM_TXE ((unsigned char)0x10)
#define SMCM_BSY ((unsigned char)0x04)
#define SMCM_TX ((unsigned char)0x02)
#define SMCM_RX ((unsigned char)0x01)
/* Baud rate generators.
*/
#define CPM_BRG_RST ((uint)0x00020000)
#define CPM_BRG_EN ((uint)0x00010000)
#define CPM_BRG_EXTC_INT ((uint)0x00000000)
#define CPM_BRG_EXTC_CLK3_9 ((uint)0x00004000)
#define CPM_BRG_EXTC_CLK5_15 ((uint)0x00008000)
#define CPM_BRG_ATB ((uint)0x00002000)
#define CPM_BRG_CD_MASK ((uint)0x00001ffe)
#define CPM_BRG_DIV16 ((uint)0x00000001)
/* SCCs.
*/
#define SCC_GSMRH_IRP ((uint)0x00040000)
#define SCC_GSMRH_GDE ((uint)0x00010000)
#define SCC_GSMRH_TCRC_CCITT ((uint)0x00008000)
#define SCC_GSMRH_TCRC_BISYNC ((uint)0x00004000)
#define SCC_GSMRH_TCRC_HDLC ((uint)0x00000000)
#define SCC_GSMRH_REVD ((uint)0x00002000)
#define SCC_GSMRH_TRX ((uint)0x00001000)
#define SCC_GSMRH_TTX ((uint)0x00000800)
#define SCC_GSMRH_CDP ((uint)0x00000400)
#define SCC_GSMRH_CTSP ((uint)0x00000200)
#define SCC_GSMRH_CDS ((uint)0x00000100)
#define SCC_GSMRH_CTSS ((uint)0x00000080)
#define SCC_GSMRH_TFL ((uint)0x00000040)
#define SCC_GSMRH_RFW ((uint)0x00000020)
#define SCC_GSMRH_TXSY ((uint)0x00000010)
#define SCC_GSMRH_SYNL16 ((uint)0x0000000c)
#define SCC_GSMRH_SYNL8 ((uint)0x00000008)
#define SCC_GSMRH_SYNL4 ((uint)0x00000004)
#define SCC_GSMRH_RTSM ((uint)0x00000002)
#define SCC_GSMRH_RSYN ((uint)0x00000001)
#define SCC_GSMRL_SIR ((uint)0x80000000) /* SCC2 only */
#define SCC_GSMRL_EDGE_NONE ((uint)0x60000000)
#define SCC_GSMRL_EDGE_NEG ((uint)0x40000000)
#define SCC_GSMRL_EDGE_POS ((uint)0x20000000)
#define SCC_GSMRL_EDGE_BOTH ((uint)0x00000000)
#define SCC_GSMRL_TCI ((uint)0x10000000)
#define SCC_GSMRL_TSNC_3 ((uint)0x0c000000)
#define SCC_GSMRL_TSNC_4 ((uint)0x08000000)
#define SCC_GSMRL_TSNC_14 ((uint)0x04000000)
#define SCC_GSMRL_TSNC_INF ((uint)0x00000000)
#define SCC_GSMRL_RINV ((uint)0x02000000)
#define SCC_GSMRL_TINV ((uint)0x01000000)
#define SCC_GSMRL_TPL_128 ((uint)0x00c00000)
#define SCC_GSMRL_TPL_64 ((uint)0x00a00000)
#define SCC_GSMRL_TPL_48 ((uint)0x00800000)
#define SCC_GSMRL_TPL_32 ((uint)0x00600000)
#define SCC_GSMRL_TPL_16 ((uint)0x00400000)
#define SCC_GSMRL_TPL_8 ((uint)0x00200000)
#define SCC_GSMRL_TPL_NONE ((uint)0x00000000)
#define SCC_GSMRL_TPP_ALL1 ((uint)0x00180000)
#define SCC_GSMRL_TPP_01 ((uint)0x00100000)
#define SCC_GSMRL_TPP_10 ((uint)0x00080000)
#define SCC_GSMRL_TPP_ZEROS ((uint)0x00000000)
#define SCC_GSMRL_TEND ((uint)0x00040000)
#define SCC_GSMRL_TDCR_32 ((uint)0x00030000)
#define SCC_GSMRL_TDCR_16 ((uint)0x00020000)
#define SCC_GSMRL_TDCR_8 ((uint)0x00010000)
#define SCC_GSMRL_TDCR_1 ((uint)0x00000000)
#define SCC_GSMRL_RDCR_32 ((uint)0x0000c000)
#define SCC_GSMRL_RDCR_16 ((uint)0x00008000)
#define SCC_GSMRL_RDCR_8 ((uint)0x00004000)
#define SCC_GSMRL_RDCR_1 ((uint)0x00000000)
#define SCC_GSMRL_RENC_DFMAN ((uint)0x00003000)
#define SCC_GSMRL_RENC_MANCH ((uint)0x00002000)
#define SCC_GSMRL_RENC_FM0 ((uint)0x00001000)
#define SCC_GSMRL_RENC_NRZI ((uint)0x00000800)
#define SCC_GSMRL_RENC_NRZ ((uint)0x00000000)
#define SCC_GSMRL_TENC_DFMAN ((uint)0x00000600)
#define SCC_GSMRL_TENC_MANCH ((uint)0x00000400)
#define SCC_GSMRL_TENC_FM0 ((uint)0x00000200)
#define SCC_GSMRL_TENC_NRZI ((uint)0x00000100)
#define SCC_GSMRL_TENC_NRZ ((uint)0x00000000)
#define SCC_GSMRL_DIAG_LE ((uint)0x000000c0) /* Loop and echo */
#define SCC_GSMRL_DIAG_ECHO ((uint)0x00000080)
#define SCC_GSMRL_DIAG_LOOP ((uint)0x00000040)
#define SCC_GSMRL_DIAG_NORM ((uint)0x00000000)
#define SCC_GSMRL_ENR ((uint)0x00000020)
#define SCC_GSMRL_ENT ((uint)0x00000010)
#define SCC_GSMRL_MODE_ENET ((uint)0x0000000c)
#define SCC_GSMRL_MODE_DDCMP ((uint)0x00000009)
#define SCC_GSMRL_MODE_BISYNC ((uint)0x00000008)
#define SCC_GSMRL_MODE_V14 ((uint)0x00000007)
#define SCC_GSMRL_MODE_AHDLC ((uint)0x00000006)
#define SCC_GSMRL_MODE_PROFIBUS ((uint)0x00000005)
#define SCC_GSMRL_MODE_UART ((uint)0x00000004)
#define SCC_GSMRL_MODE_SS7 ((uint)0x00000003)
#define SCC_GSMRL_MODE_ATALK ((uint)0x00000002)
#define SCC_GSMRL_MODE_HDLC ((uint)0x00000000)
#define SCC_TODR_TOD ((ushort)0x8000)
/* SCC Event and Mask register.
*/
#define SCCM_TXE ((unsigned char)0x10)
#define SCCM_BSY ((unsigned char)0x04)
#define SCCM_TX ((unsigned char)0x02)
#define SCCM_RX ((unsigned char)0x01)
typedef struct scc_param {
ushort scc_rbase; /* Rx Buffer descriptor base address */
ushort scc_tbase; /* Tx Buffer descriptor base address */
u_char scc_rfcr; /* Rx function code */
u_char scc_tfcr; /* Tx function code */
ushort scc_mrblr; /* Max receive buffer length */
uint scc_rstate; /* Internal */
uint scc_idp; /* Internal */
ushort scc_rbptr; /* Internal */
ushort scc_ibc; /* Internal */
uint scc_rxtmp; /* Internal */
uint scc_tstate; /* Internal */
uint scc_tdp; /* Internal */
ushort scc_tbptr; /* Internal */
ushort scc_tbc; /* Internal */
uint scc_txtmp; /* Internal */
uint scc_rcrc; /* Internal */
uint scc_tcrc; /* Internal */
} sccp_t;
/* CPM Ethernet through SCC1.
*/
typedef struct scc_enet {
sccp_t sen_genscc;
uint sen_cpres; /* Preset CRC */
uint sen_cmask; /* Constant mask for CRC */
uint sen_crcec; /* CRC Error counter */
uint sen_alec; /* alignment error counter */
uint sen_disfc; /* discard frame counter */
ushort sen_pads; /* Tx short frame pad character */
ushort sen_retlim; /* Retry limit threshold */
ushort sen_retcnt; /* Retry limit counter */
ushort sen_maxflr; /* maximum frame length register */
ushort sen_minflr; /* minimum frame length register */
ushort sen_maxd1; /* maximum DMA1 length */
ushort sen_maxd2; /* maximum DMA2 length */
ushort sen_maxd; /* Rx max DMA */
ushort sen_dmacnt; /* Rx DMA counter */
ushort sen_maxb; /* Max BD byte count */
ushort sen_gaddr1; /* Group address filter */
ushort sen_gaddr2;
ushort sen_gaddr3;
ushort sen_gaddr4;
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