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u-boot/arch/powerpc/include/asm/cpm_8xx.h
Christophe Leroy b1d62424cb powerpc: mpc8xx: redistribute data in CPM dpram 
Some malloc memory is needed at startup for DM model.
Lets reorganise the use of the CPM dpram.

The MPC866/885 dpram, we have 8kbytes dual port RAM, which is usable as:
IMMR + 0x2000..0x2800: BD/Data/Microcode
IMMR + 0x2800..0x2e00: BD/Data
IMMR + 0x2e00..0x3800: BD/Data/Microcode
IMMR + 0x3800..0x3a00: BD/Data
IMMR + 0x3a00..0x3c00: BD/Data/Microcode
IMMR + 0x3c00..0x4000: Parameters for the Peripheral Controllers

Lets reallocate all BDs in the 3800..3a00 area and give the full
2800..2e00 for dynamic RAM allocation including global data

That way, the microcode areas remain available if needed one day.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2018-04-06 16:30:37 -04:00

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/*
* MPC8xx Communication Processor Module.
* Copyright (c) 1997 Dan Malek (dmalek@jlc.net)
*
* (C) Copyright 2000-2006
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* This file contains structures and information for the communication
* processor channels. Some CPM control and status is available
* through the MPC8xx internal memory map. See immap.h for details.
* This file only contains what I need for the moment, not the total
* CPM capabilities. I (or someone else) will add definitions as they
* are needed. -- Dan
*
*/
#ifndef __CPM_8XX__
#define __CPM_8XX__
#include <asm/immap_8xx.h>
/* CPM Command register.
*/
#define CPM_CR_RST ((ushort)0x8000)
#define CPM_CR_OPCODE ((ushort)0x0f00)
#define CPM_CR_CHAN ((ushort)0x00f0)
#define CPM_CR_FLG ((ushort)0x0001)
/* Some commands (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)
/* Channel numbers.
*/
#define CPM_CR_CH_SCC1 ((ushort)0x0000)
#define CPM_CR_CH_I2C ((ushort)0x0001) /* I2C and IDMA1 */
#define CPM_CR_CH_SCC2 ((ushort)0x0004)
#define CPM_CR_CH_SPI ((ushort)0x0005) /* SPI/IDMA2/Timers */
#define CPM_CR_CH_SCC3 ((ushort)0x0008)
#define CPM_CR_CH_SMC1 ((ushort)0x0009) /* SMC1 / DSP1 */
#define CPM_CR_CH_SCC4 ((ushort)0x000c)
#define CPM_CR_CH_SMC2 ((ushort)0x000d) /* SMC2 / DSP2 */
#define mk_cr_cmd(CH, CMD) ((CMD << 8) | (CH << 4))
/*
* DPRAM defines and allocation functions
*/
#define CPM_SERIAL_BASE 0x1800
#define CPM_I2C_BASE 0x1820
#define CPM_SPI_BASE 0x1840
#define CPM_FEC_BASE 0x1860
#define CPM_SERIAL2_BASE 0x18e0
#define CPM_SCC_BASE 0x1900
#define CPM_POST_BASE 0x1980
#define CPM_WLKBD_BASE 0x1a00
#define BD_IIC_START ((uint) 0x0400) /* <- please use CPM_I2C_BASE !! */
/* Export the base address of the communication processor registers
* and dual port ram.
*/
extern cpm8xx_t *cpmp; /* Pointer to comm processor */
/* 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_TC ((ushort)0x0400) /* Transmit CRC */
#define BD_SC_CM ((ushort)0x0200) /* Continuous 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) /* Carrier Detect lost */
/* Parameter RAM offsets.
*/
#define PROFF_SCC1 ((uint)0x0000)
#define PROFF_IIC ((uint)0x0080)
#define PROFF_REVNUM ((uint)0x00b0)
#define PROFF_SCC2 ((uint)0x0100)
#define PROFF_SPI ((uint)0x0180)
#define PROFF_SCC3 ((uint)0x0200)
#define PROFF_SMC1 ((uint)0x0280)
#define PROFF_SCC4 ((uint)0x0300)
#define PROFF_SMC2 ((uint)0x0380)
/* 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 */
u_char res1[8];
ushort smc_rpbase; /* Relocation pointer */
} smc_uart_t;
/* Function code bits.
*/
#define SMC_EB ((u_char)0x10) /* Set big endian byte order */
/* SMC uart mode register.
*/
#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)
/* SMC2 as Centronics parallel printer. It is half duplex, in that
* it can only receive or transmit. The parameter ram values for
* each direction are either unique or properly overlap, so we can
* include them in one structure.
*/
typedef struct smc_centronics {
ushort scent_rbase;
ushort scent_tbase;
u_char scent_cfcr;
u_char scent_smask;
ushort scent_mrblr;
uint scent_rstate;
uint scent_r_ptr;
ushort scent_rbptr;
ushort scent_r_cnt;
uint scent_rtemp;
uint scent_tstate;
uint scent_t_ptr;
ushort scent_tbptr;
ushort scent_t_cnt;
uint scent_ttemp;
ushort scent_max_sl;
ushort scent_sl_cnt;
ushort scent_character1;
ushort scent_character2;
ushort scent_character3;
ushort scent_character4;
ushort scent_character5;
ushort scent_character6;
ushort scent_character7;
ushort scent_character8;
ushort scent_rccm;
ushort scent_rccr;
} smc_cent_t;
/* Centronics Status Mask Register.
*/
#define SMC_CENT_F ((u_char)0x08)
#define SMC_CENT_PE ((u_char)0x04)
#define SMC_CENT_S ((u_char)0x02)
/* SMC Event and Mask register.
*/
#define SMCM_BRKE ((unsigned char)0x40) /* When in UART Mode */
#define SMCM_BRK ((unsigned char)0x10) /* When in UART Mode */
#define SMCM_TXE ((unsigned char)0x10) /* When in Transparent Mode */
#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_CLK2 ((uint)0x00004000)
#define CPM_BRG_EXTC_CLK6 ((uint)0x00008000)
#define CPM_BRG_ATB ((uint)0x00002000)
#define CPM_BRG_CD_MASK ((uint)0x00001ffe)
#define CPM_BRG_DIV16 ((uint)0x00000001)
/* SI Clock Route Register
*/
#define SICR_RCLK_SCC1_BRG1 ((uint)0x00000000)
#define SICR_TCLK_SCC1_BRG1 ((uint)0x00000000)
#define SICR_RCLK_SCC2_BRG2 ((uint)0x00000800)
#define SICR_TCLK_SCC2_BRG2 ((uint)0x00000100)
#define SICR_RCLK_SCC3_BRG3 ((uint)0x00100000)
#define SICR_TCLK_SCC3_BRG3 ((uint)0x00020000)
#define SICR_RCLK_SCC4_BRG4 ((uint)0x18000000)
#define SICR_TCLK_SCC4_BRG4 ((uint)0x03000000)
/* 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;
/* Function code bits.
*/
#define SCC_EB ((u_char)0x10) /* Set big endian byte order */
/* CPM Ethernet through SCCx.
*/
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;
uint sen_tbuf0data0; /* Save area 0 - current frame */
uint sen_tbuf0data1; /* Save area 1 - current frame */
uint sen_tbuf0rba; /* Internal */
uint sen_tbuf0crc; /* Internal */
ushort sen_tbuf0bcnt; /* Internal */
ushort sen_paddrh; /* physical address (MSB) */
ushort sen_paddrm;
ushort sen_paddrl; /* physical address (LSB) */
ushort sen_pper; /* persistence */
ushort sen_rfbdptr; /* Rx first BD pointer */
ushort sen_tfbdptr; /* Tx first BD pointer */
ushort sen_tlbdptr; /* Tx last BD pointer */
uint sen_tbuf1data0; /* Save area 0 - current frame */
uint sen_tbuf1data1; /* Save area 1 - current frame */
uint sen_tbuf1rba; /* Internal */
uint sen_tbuf1crc; /* Internal */
ushort sen_tbuf1bcnt; /* Internal */
ushort sen_txlen; /* Tx Frame length counter */
ushort sen_iaddr1; /* Individual address filter */
ushort sen_iaddr2;
ushort sen_iaddr3;
ushort sen_iaddr4;
ushort sen_boffcnt; /* Backoff counter */
/* NOTE: Some versions of the manual have the following items
* incorrectly documented. Below is the proper order.
*/
ushort sen_taddrh; /* temp address (MSB) */
ushort sen_taddrm;
ushort sen_taddrl; /* temp address (LSB) */
} scc_enet_t;
/*********************************************************************/
/* SCC Event register as used by Ethernet.
*/
#define SCCE_ENET_GRA ((ushort)0x0080) /* Graceful stop complete */
#define SCCE_ENET_TXE ((ushort)0x0010) /* Transmit Error */
#define SCCE_ENET_RXF ((ushort)0x0008) /* Full frame received */
#define SCCE_ENET_BSY ((ushort)0x0004) /* All incoming buffers full */
#define SCCE_ENET_TXB ((ushort)0x0002) /* A buffer was transmitted */
#define SCCE_ENET_RXB ((ushort)0x0001) /* A buffer was received */
/* SCC Mode Register (PSMR) as used by Ethernet.
*/
#define SCC_PSMR_HBC ((ushort)0x8000) /* Enable heartbeat */
#define SCC_PSMR_FC ((ushort)0x4000) /* Force collision */
#define SCC_PSMR_RSH ((ushort)0x2000) /* Receive short frames */
#define SCC_PSMR_IAM ((ushort)0x1000) /* Check individual hash */
#define SCC_PSMR_ENCRC ((ushort)0x0800) /* Ethernet CRC mode */
#define SCC_PSMR_PRO ((ushort)0x0200) /* Promiscuous mode */
#define SCC_PSMR_BRO ((ushort)0x0100) /* Catch broadcast pkts */
#define SCC_PSMR_SBT ((ushort)0x0080) /* Special backoff timer */
#define SCC_PSMR_LPB ((ushort)0x0040) /* Set Loopback mode */
#define SCC_PSMR_SIP ((ushort)0x0020) /* Sample Input Pins */
#define SCC_PSMR_LCW ((ushort)0x0010) /* Late collision window */
#define SCC_PSMR_NIB22 ((ushort)0x000a) /* Start frame search */
#define SCC_PSMR_FDE ((ushort)0x0001) /* Full duplex enable */
/* Buffer descriptor control/status used by Ethernet receive.
*/
#define BD_ENET_RX_EMPTY ((ushort)0x8000)
#define BD_ENET_RX_WRAP ((ushort)0x2000)
#define BD_ENET_RX_INTR ((ushort)0x1000)
#define BD_ENET_RX_LAST ((ushort)0x0800)
#define BD_ENET_RX_FIRST ((ushort)0x0400)
#define BD_ENET_RX_MISS ((ushort)0x0100)
#define BD_ENET_RX_LG ((ushort)0x0020)
#define BD_ENET_RX_NO ((ushort)0x0010)
#define BD_ENET_RX_SH ((ushort)0x0008)
#define BD_ENET_RX_CR ((ushort)0x0004)
#define BD_ENET_RX_OV ((ushort)0x0002)
#define BD_ENET_RX_CL ((ushort)0x0001)
#define BD_ENET_RX_STATS ((ushort)0x013f) /* All status bits */
/* Buffer descriptor control/status used by Ethernet transmit.
*/
#define BD_ENET_TX_READY ((ushort)0x8000)
#define BD_ENET_TX_PAD ((ushort)0x4000)
#define BD_ENET_TX_WRAP ((ushort)0x2000)
#define BD_ENET_TX_INTR ((ushort)0x1000)
#define BD_ENET_TX_LAST ((ushort)0x0800)
#define BD_ENET_TX_TC ((ushort)0x0400)
#define BD_ENET_TX_DEF ((ushort)0x0200)
#define BD_ENET_TX_HB ((ushort)0x0100)
#define BD_ENET_TX_LC ((ushort)0x0080)
#define BD_ENET_TX_RL ((ushort)0x0040)
#define BD_ENET_TX_RCMASK ((ushort)0x003c)
#define BD_ENET_TX_UN ((ushort)0x0002)
#define BD_ENET_TX_CSL ((ushort)0x0001)
#define BD_ENET_TX_STATS ((ushort)0x03ff) /* All status bits */
/* SCC as UART
*/
typedef struct scc_uart {
sccp_t scc_genscc;
uint scc_res1; /* Reserved */
uint scc_res2; /* Reserved */
ushort scc_maxidl; /* Maximum idle chars */
ushort scc_idlc; /* temp idle counter */
ushort scc_brkcr; /* Break count register */
ushort scc_parec; /* receive parity error counter */
ushort scc_frmec; /* receive framing error counter */
ushort scc_nosec; /* receive noise counter */
ushort scc_brkec; /* receive break condition counter */
ushort scc_brkln; /* last received break length */
ushort scc_uaddr1; /* UART address character 1 */
ushort scc_uaddr2; /* UART address character 2 */
ushort scc_rtemp; /* Temp storage */
ushort scc_toseq; /* Transmit out of sequence char */
ushort scc_char1; /* control character 1 */
ushort scc_char2; /* control character 2 */
ushort scc_char3; /* control character 3 */
ushort scc_char4; /* control character 4 */
ushort scc_char5; /* control character 5 */
ushort scc_char6; /* control character 6 */
ushort scc_char7; /* control character 7 */
ushort scc_char8; /* control character 8 */
ushort scc_rccm; /* receive control character mask */
ushort scc_rccr; /* receive control character register */
ushort scc_rlbc; /* receive last break character */
} scc_uart_t;
/* SCC Event and Mask registers when it is used as a UART.
*/
#define UART_SCCM_GLR ((ushort)0x1000)
#define UART_SCCM_GLT ((ushort)0x0800)
#define UART_SCCM_AB ((ushort)0x0200)
#define UART_SCCM_IDL ((ushort)0x0100)
#define UART_SCCM_GRA ((ushort)0x0080)
#define UART_SCCM_BRKE ((ushort)0x0040)
#define UART_SCCM_BRKS ((ushort)0x0020)
#define UART_SCCM_CCR ((ushort)0x0008)
#define UART_SCCM_BSY ((ushort)0x0004)
#define UART_SCCM_TX ((ushort)0x0002)
#define UART_SCCM_RX ((ushort)0x0001)
/* The SCC PSMR when used as a UART.
*/
#define SCU_PSMR_FLC ((ushort)0x8000)
#define SCU_PSMR_SL ((ushort)0x4000)
#define SCU_PSMR_CL ((ushort)0x3000)
#define SCU_PSMR_UM ((ushort)0x0c00)
#define SCU_PSMR_FRZ ((ushort)0x0200)
#define SCU_PSMR_RZS ((ushort)0x0100)
#define SCU_PSMR_SYN ((ushort)0x0080)
#define SCU_PSMR_DRT ((ushort)0x0040)
#define SCU_PSMR_PEN ((ushort)0x0010)
#define SCU_PSMR_RPM ((ushort)0x000c)
#define SCU_PSMR_REVP ((ushort)0x0008)
#define SCU_PSMR_TPM ((ushort)0x0003)
#define SCU_PSMR_TEVP ((ushort)0x0003)
/* CPM Transparent mode SCC.
*/
typedef struct scc_trans {
sccp_t st_genscc;
uint st_cpres; /* Preset CRC */
uint st_cmask; /* Constant mask for CRC */
} scc_trans_t;
#define BD_SCC_TX_LAST ((ushort)0x0800)
/* IIC parameter RAM.
*/
typedef struct iic {
ushort iic_rbase; /* Rx Buffer descriptor base address */
ushort iic_tbase; /* Tx Buffer descriptor base address */
u_char iic_rfcr; /* Rx function code */
u_char iic_tfcr; /* Tx function code */
ushort iic_mrblr; /* Max receive buffer length */
uint iic_rstate; /* Internal */
uint iic_rdp; /* Internal */
ushort iic_rbptr; /* Internal */
ushort iic_rbc; /* Internal */
uint iic_rxtmp; /* Internal */
uint iic_tstate; /* Internal */
uint iic_tdp; /* Internal */
ushort iic_tbptr; /* Internal */
ushort iic_tbc; /* Internal */
uint iic_txtmp; /* Internal */
uint iic_res; /* reserved */
ushort iic_rpbase; /* Relocation pointer */
ushort iic_res2; /* reserved */
} iic_t;
/* SPI parameter RAM.
*/
typedef struct spi {
ushort spi_rbase; /* Rx Buffer descriptor base address */
ushort spi_tbase; /* Tx Buffer descriptor base address */
u_char spi_rfcr; /* Rx function code */
u_char spi_tfcr; /* Tx function code */
ushort spi_mrblr; /* Max receive buffer length */
uint spi_rstate; /* Internal */
uint spi_rdp; /* Internal */
ushort spi_rbptr; /* Internal */
ushort spi_rbc; /* Internal */
uint spi_rxtmp; /* Internal */
uint spi_tstate; /* Internal */
uint spi_tdp; /* Internal */
ushort spi_tbptr; /* Internal */
ushort spi_tbc; /* Internal */
uint spi_txtmp; /* Internal */
uint spi_res;
ushort spi_rpbase; /* Relocation pointer */
ushort spi_res2;
} spi_t;
/* SPI Mode register.
*/
#define SPMODE_LOOP ((ushort)0x4000) /* Loopback */
#define SPMODE_CI ((ushort)0x2000) /* Clock Invert */
#define SPMODE_CP ((ushort)0x1000) /* Clock Phase */
#define SPMODE_DIV16 ((ushort)0x0800) /* BRG/16 mode */
#define SPMODE_REV ((ushort)0x0400) /* Reversed Data */
#define SPMODE_MSTR ((ushort)0x0200) /* SPI Master */
#define SPMODE_EN ((ushort)0x0100) /* Enable */
#define SPMODE_LENMSK ((ushort)0x00f0) /* character length */
#define SPMODE_PMMSK ((ushort)0x000f) /* prescale modulus */
#define SPMODE_LEN(x) ((((x) - 1) & 0xF) << 4)
#define SPMODE_PM(x) ((x) & 0xF)
/* HDLC parameter RAM.
*/
typedef struct hdlc_pram_s {
/*
* SCC parameter RAM
*/
ushort rbase; /* Rx Buffer descriptor base address */
ushort tbase; /* Tx Buffer descriptor base address */
uchar rfcr; /* Rx function code */
uchar tfcr; /* Tx function code */
ushort mrblr; /* Rx buffer length */
ulong rstate; /* Rx internal state */
ulong rptr; /* Rx internal data pointer */
ushort rbptr; /* rb BD Pointer */
ushort rcount; /* Rx internal byte count */
ulong rtemp; /* Rx temp */
ulong tstate; /* Tx internal state */
ulong tptr; /* Tx internal data pointer */
ushort tbptr; /* Tx BD pointer */
ushort tcount; /* Tx byte count */
ulong ttemp; /* Tx temp */
ulong rcrc; /* temp receive CRC */
ulong tcrc; /* temp transmit CRC */
/*
* HDLC specific parameter RAM
*/
uchar res[4]; /* reserved */
ulong c_mask; /* CRC constant */
ulong c_pres; /* CRC preset */
ushort disfc; /* discarded frame counter */
ushort crcec; /* CRC error counter */
ushort abtsc; /* abort sequence counter */
ushort nmarc; /* nonmatching address rx cnt */
ushort retrc; /* frame retransmission cnt */
ushort mflr; /* maximum frame length reg */
ushort max_cnt; /* maximum length counter */
ushort rfthr; /* received frames threshold */
ushort rfcnt; /* received frames count */
ushort hmask; /* user defined frm addr mask */
ushort haddr1; /* user defined frm address 1 */
ushort haddr2; /* user defined frm address 2 */
ushort haddr3; /* user defined frm address 3 */
ushort haddr4; /* user defined frm address 4 */
ushort tmp; /* temp */
ushort tmp_mb; /* temp */
} hdlc_pram_t;
/* CPM interrupts. There are nearly 32 interrupts generated by CPM
* channels or devices. All of these are presented to the PPC core
* as a single interrupt. The CPM interrupt handler dispatches its
* own handlers, in a similar fashion to the PPC core handler. We
* use the table as defined in the manuals (i.e. no special high
* priority and SCC1 == SCCa, etc...).
*/
#define CPMVEC_NR 32
#define CPMVEC_OFFSET 0x00010000
#define CPMVEC_PIO_PC15 ((ushort)0x1f | CPMVEC_OFFSET)
#define CPMVEC_SCC1 ((ushort)0x1e | CPMVEC_OFFSET)
#define CPMVEC_SCC2 ((ushort)0x1d | CPMVEC_OFFSET)
#define CPMVEC_SCC3 ((ushort)0x1c | CPMVEC_OFFSET)
#define CPMVEC_SCC4 ((ushort)0x1b | CPMVEC_OFFSET)
#define CPMVEC_PIO_PC14 ((ushort)0x1a | CPMVEC_OFFSET)
#define CPMVEC_TIMER1 ((ushort)0x19 | CPMVEC_OFFSET)
#define CPMVEC_PIO_PC13 ((ushort)0x18 | CPMVEC_OFFSET)
#define CPMVEC_PIO_PC12 ((ushort)0x17 | CPMVEC_OFFSET)
#define CPMVEC_SDMA_CB_ERR ((ushort)0x16 | CPMVEC_OFFSET)
#define CPMVEC_IDMA1 ((ushort)0x15 | CPMVEC_OFFSET)
#define CPMVEC_IDMA2 ((ushort)0x14 | CPMVEC_OFFSET)
#define CPMVEC_TIMER2 ((ushort)0x12 | CPMVEC_OFFSET)
#define CPMVEC_RISCTIMER ((ushort)0x11 | CPMVEC_OFFSET)
#define CPMVEC_I2C ((ushort)0x10 | CPMVEC_OFFSET)
#define CPMVEC_PIO_PC11 ((ushort)0x0f | CPMVEC_OFFSET)
#define CPMVEC_PIO_PC10 ((ushort)0x0e | CPMVEC_OFFSET)
#define CPMVEC_TIMER3 ((ushort)0x0c | CPMVEC_OFFSET)
#define CPMVEC_PIO_PC9 ((ushort)0x0b | CPMVEC_OFFSET)
#define CPMVEC_PIO_PC8 ((ushort)0x0a | CPMVEC_OFFSET)
#define CPMVEC_PIO_PC7 ((ushort)0x09 | CPMVEC_OFFSET)
#define CPMVEC_TIMER4 ((ushort)0x07 | CPMVEC_OFFSET)
#define CPMVEC_PIO_PC6 ((ushort)0x06 | CPMVEC_OFFSET)
#define CPMVEC_SPI ((ushort)0x05 | CPMVEC_OFFSET)
#define CPMVEC_SMC1 ((ushort)0x04 | CPMVEC_OFFSET)
#define CPMVEC_SMC2 ((ushort)0x03 | CPMVEC_OFFSET)
#define CPMVEC_PIO_PC5 ((ushort)0x02 | CPMVEC_OFFSET)
#define CPMVEC_PIO_PC4 ((ushort)0x01 | CPMVEC_OFFSET)
#define CPMVEC_ERROR ((ushort)0x00 | CPMVEC_OFFSET)
void irq_install_handler(int vec, void (*handler)(void *), void *dev_id);
/* CPM interrupt configuration vector.
*/
#define CICR_SCD_SCC4 ((uint)0x00c00000) /* SCC4 @ SCCd */
#define CICR_SCC_SCC3 ((uint)0x00200000) /* SCC3 @ SCCc */
#define CICR_SCB_SCC2 ((uint)0x00040000) /* SCC2 @ SCCb */
#define CICR_SCA_SCC1 ((uint)0x00000000) /* SCC1 @ SCCa */
#define CICR_IRL_MASK ((uint)0x0000e000) /* Core interrupt */
#define CICR_HP_MASK ((uint)0x00001f00) /* Hi-pri int. */
#define CICR_IEN ((uint)0x00000080) /* Int. enable */
#define CICR_SPS ((uint)0x00000001) /* SCC Spread */
#endif /* __CPM_8XX__ */
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