Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * MPC8xx Communication Processor Module. |
| 3 | * Copyright (c) 1997 Dan Malek (dmalek@jlc.net) |
| 4 | * |
| 5 | * This file contains structures and information for the communication |
| 6 | * processor channels. Some CPM control and status is available |
| 7 | * throught the MPC8xx internal memory map. See immap.h for details. |
| 8 | * This file only contains what I need for the moment, not the total |
| 9 | * CPM capabilities. I (or someone else) will add definitions as they |
| 10 | * are needed. -- Dan |
| 11 | * |
| 12 | * On the MBX board, EPPC-Bug loads CPM microcode into the first 512 |
| 13 | * bytes of the DP RAM and relocates the I2C parameter area to the |
| 14 | * IDMA1 space. The remaining DP RAM is available for buffer descriptors |
| 15 | * or other use. |
| 16 | */ |
| 17 | #ifndef __CPM_8XX__ |
| 18 | #define __CPM_8XX__ |
| 19 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 20 | #include <asm/8xx_immap.h> |
| 21 | #include <asm/ptrace.h> |
| 22 | |
| 23 | /* CPM Command register. |
| 24 | */ |
| 25 | #define CPM_CR_RST ((ushort)0x8000) |
| 26 | #define CPM_CR_OPCODE ((ushort)0x0f00) |
| 27 | #define CPM_CR_CHAN ((ushort)0x00f0) |
| 28 | #define CPM_CR_FLG ((ushort)0x0001) |
| 29 | |
| 30 | /* Some commands (there are more...later) |
| 31 | */ |
| 32 | #define CPM_CR_INIT_TRX ((ushort)0x0000) |
| 33 | #define CPM_CR_INIT_RX ((ushort)0x0001) |
| 34 | #define CPM_CR_INIT_TX ((ushort)0x0002) |
| 35 | #define CPM_CR_HUNT_MODE ((ushort)0x0003) |
| 36 | #define CPM_CR_STOP_TX ((ushort)0x0004) |
Vitaly Bordug | 61f5657 | 2006-04-29 22:32:44 +0400 | [diff] [blame] | 37 | #define CPM_CR_GRA_STOP_TX ((ushort)0x0005) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | #define CPM_CR_RESTART_TX ((ushort)0x0006) |
| 39 | #define CPM_CR_CLOSE_RX_BD ((ushort)0x0007) |
| 40 | #define CPM_CR_SET_GADDR ((ushort)0x0008) |
| 41 | #define CPM_CR_SET_TIMER CPM_CR_SET_GADDR |
| 42 | |
| 43 | /* Channel numbers. |
| 44 | */ |
| 45 | #define CPM_CR_CH_SCC1 ((ushort)0x0000) |
| 46 | #define CPM_CR_CH_I2C ((ushort)0x0001) /* I2C and IDMA1 */ |
| 47 | #define CPM_CR_CH_SCC2 ((ushort)0x0004) |
| 48 | #define CPM_CR_CH_SPI ((ushort)0x0005) /* SPI / IDMA2 / Timers */ |
| 49 | #define CPM_CR_CH_TIMER CPM_CR_CH_SPI |
| 50 | #define CPM_CR_CH_SCC3 ((ushort)0x0008) |
| 51 | #define CPM_CR_CH_SMC1 ((ushort)0x0009) /* SMC1 / DSP1 */ |
| 52 | #define CPM_CR_CH_SCC4 ((ushort)0x000c) |
| 53 | #define CPM_CR_CH_SMC2 ((ushort)0x000d) /* SMC2 / DSP2 */ |
| 54 | |
| 55 | #define mk_cr_cmd(CH, CMD) ((CMD << 8) | (CH << 4)) |
| 56 | |
| 57 | /* The dual ported RAM is multi-functional. Some areas can be (and are |
| 58 | * being) used for microcode. There is an area that can only be used |
| 59 | * as data ram for buffer descriptors, which is all we use right now. |
| 60 | * Currently the first 512 and last 256 bytes are used for microcode. |
| 61 | */ |
| 62 | #define CPM_DATAONLY_BASE ((uint)0x0800) |
| 63 | #define CPM_DATAONLY_SIZE ((uint)0x0700) |
| 64 | #define CPM_DP_NOSPACE ((uint)0x7fffffff) |
| 65 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | /* Export the base address of the communication processor registers |
| 67 | * and dual port ram. |
| 68 | */ |
| 69 | extern cpm8xx_t *cpmp; /* Pointer to comm processor */ |
Timur Tabi | 4c35630 | 2007-05-08 14:46:36 -0500 | [diff] [blame] | 70 | extern unsigned long cpm_dpalloc(uint size, uint align); |
| 71 | extern int cpm_dpfree(unsigned long offset); |
| 72 | extern unsigned long cpm_dpalloc_fixed(unsigned long offset, uint size, uint align); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 73 | extern void cpm_dpdump(void); |
Timur Tabi | 4c35630 | 2007-05-08 14:46:36 -0500 | [diff] [blame] | 74 | extern void *cpm_dpram_addr(unsigned long offset); |
Vitaly Bordug | f2a0bd3 | 2007-01-24 22:41:24 +0300 | [diff] [blame] | 75 | extern uint cpm_dpram_phys(u8* addr); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 76 | extern void cpm_setbrg(uint brg, uint rate); |
| 77 | |
| 78 | extern uint m8xx_cpm_hostalloc(uint size); |
| 79 | extern int m8xx_cpm_hostfree(uint start); |
| 80 | extern void m8xx_cpm_hostdump(void); |
| 81 | |
Marcelo Tosatti | 38dc161 | 2005-11-02 12:46:28 -0200 | [diff] [blame] | 82 | extern void cpm_load_patch(volatile immap_t *immr); |
| 83 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | /* Buffer descriptors used by many of the CPM protocols. |
| 85 | */ |
| 86 | typedef struct cpm_buf_desc { |
| 87 | ushort cbd_sc; /* Status and Control */ |
| 88 | ushort cbd_datlen; /* Data length in buffer */ |
| 89 | uint cbd_bufaddr; /* Buffer address in host memory */ |
| 90 | } cbd_t; |
| 91 | |
| 92 | #define BD_SC_EMPTY ((ushort)0x8000) /* Receive is empty */ |
| 93 | #define BD_SC_READY ((ushort)0x8000) /* Transmit is ready */ |
| 94 | #define BD_SC_WRAP ((ushort)0x2000) /* Last buffer descriptor */ |
| 95 | #define BD_SC_INTRPT ((ushort)0x1000) /* Interrupt on change */ |
| 96 | #define BD_SC_LAST ((ushort)0x0800) /* Last buffer in frame */ |
| 97 | #define BD_SC_TC ((ushort)0x0400) /* Transmit CRC */ |
| 98 | #define BD_SC_CM ((ushort)0x0200) /* Continous mode */ |
| 99 | #define BD_SC_ID ((ushort)0x0100) /* Rec'd too many idles */ |
| 100 | #define BD_SC_P ((ushort)0x0100) /* xmt preamble */ |
| 101 | #define BD_SC_BR ((ushort)0x0020) /* Break received */ |
| 102 | #define BD_SC_FR ((ushort)0x0010) /* Framing error */ |
| 103 | #define BD_SC_PR ((ushort)0x0008) /* Parity error */ |
| 104 | #define BD_SC_NAK ((ushort)0x0004) /* NAK - did not respond */ |
| 105 | #define BD_SC_OV ((ushort)0x0002) /* Overrun */ |
| 106 | #define BD_SC_UN ((ushort)0x0002) /* Underrun */ |
| 107 | #define BD_SC_CD ((ushort)0x0001) /* ?? */ |
| 108 | #define BD_SC_CL ((ushort)0x0001) /* Collision */ |
| 109 | |
| 110 | /* Parameter RAM offsets. |
| 111 | */ |
| 112 | #define PROFF_SCC1 ((uint)0x0000) |
| 113 | #define PROFF_IIC ((uint)0x0080) |
| 114 | #define PROFF_SCC2 ((uint)0x0100) |
| 115 | #define PROFF_SPI ((uint)0x0180) |
| 116 | #define PROFF_SCC3 ((uint)0x0200) |
| 117 | #define PROFF_SMC1 ((uint)0x0280) |
| 118 | #define PROFF_SCC4 ((uint)0x0300) |
| 119 | #define PROFF_SMC2 ((uint)0x0380) |
| 120 | |
| 121 | /* Define enough so I can at least use the serial port as a UART. |
| 122 | * The MBX uses SMC1 as the host serial port. |
| 123 | */ |
| 124 | typedef struct smc_uart { |
| 125 | ushort smc_rbase; /* Rx Buffer descriptor base address */ |
| 126 | ushort smc_tbase; /* Tx Buffer descriptor base address */ |
| 127 | u_char smc_rfcr; /* Rx function code */ |
| 128 | u_char smc_tfcr; /* Tx function code */ |
| 129 | ushort smc_mrblr; /* Max receive buffer length */ |
| 130 | uint smc_rstate; /* Internal */ |
| 131 | uint smc_idp; /* Internal */ |
| 132 | ushort smc_rbptr; /* Internal */ |
| 133 | ushort smc_ibc; /* Internal */ |
| 134 | uint smc_rxtmp; /* Internal */ |
| 135 | uint smc_tstate; /* Internal */ |
| 136 | uint smc_tdp; /* Internal */ |
| 137 | ushort smc_tbptr; /* Internal */ |
| 138 | ushort smc_tbc; /* Internal */ |
| 139 | uint smc_txtmp; /* Internal */ |
| 140 | ushort smc_maxidl; /* Maximum idle characters */ |
| 141 | ushort smc_tmpidl; /* Temporary idle counter */ |
| 142 | ushort smc_brklen; /* Last received break length */ |
| 143 | ushort smc_brkec; /* rcv'd break condition counter */ |
| 144 | ushort smc_brkcr; /* xmt break count register */ |
| 145 | ushort smc_rmask; /* Temporary bit mask */ |
| 146 | char res1[8]; /* Reserved */ |
| 147 | ushort smc_rpbase; /* Relocation pointer */ |
| 148 | } smc_uart_t; |
| 149 | |
| 150 | /* Function code bits. |
| 151 | */ |
| 152 | #define SMC_EB ((u_char)0x10) /* Set big endian byte order */ |
| 153 | |
| 154 | /* SMC uart mode register. |
| 155 | */ |
| 156 | #define SMCMR_REN ((ushort)0x0001) |
| 157 | #define SMCMR_TEN ((ushort)0x0002) |
| 158 | #define SMCMR_DM ((ushort)0x000c) |
| 159 | #define SMCMR_SM_GCI ((ushort)0x0000) |
| 160 | #define SMCMR_SM_UART ((ushort)0x0020) |
| 161 | #define SMCMR_SM_TRANS ((ushort)0x0030) |
| 162 | #define SMCMR_SM_MASK ((ushort)0x0030) |
| 163 | #define SMCMR_PM_EVEN ((ushort)0x0100) /* Even parity, else odd */ |
| 164 | #define SMCMR_REVD SMCMR_PM_EVEN |
| 165 | #define SMCMR_PEN ((ushort)0x0200) /* Parity enable */ |
| 166 | #define SMCMR_BS SMCMR_PEN |
| 167 | #define SMCMR_SL ((ushort)0x0400) /* Two stops, else one */ |
| 168 | #define SMCR_CLEN_MASK ((ushort)0x7800) /* Character length */ |
| 169 | #define smcr_mk_clen(C) (((C) << 11) & SMCR_CLEN_MASK) |
| 170 | |
| 171 | /* SMC2 as Centronics parallel printer. It is half duplex, in that |
| 172 | * it can only receive or transmit. The parameter ram values for |
| 173 | * each direction are either unique or properly overlap, so we can |
| 174 | * include them in one structure. |
| 175 | */ |
| 176 | typedef struct smc_centronics { |
| 177 | ushort scent_rbase; |
| 178 | ushort scent_tbase; |
| 179 | u_char scent_cfcr; |
| 180 | u_char scent_smask; |
| 181 | ushort scent_mrblr; |
| 182 | uint scent_rstate; |
| 183 | uint scent_r_ptr; |
| 184 | ushort scent_rbptr; |
| 185 | ushort scent_r_cnt; |
| 186 | uint scent_rtemp; |
| 187 | uint scent_tstate; |
| 188 | uint scent_t_ptr; |
| 189 | ushort scent_tbptr; |
| 190 | ushort scent_t_cnt; |
| 191 | uint scent_ttemp; |
| 192 | ushort scent_max_sl; |
| 193 | ushort scent_sl_cnt; |
| 194 | ushort scent_character1; |
| 195 | ushort scent_character2; |
| 196 | ushort scent_character3; |
| 197 | ushort scent_character4; |
| 198 | ushort scent_character5; |
| 199 | ushort scent_character6; |
| 200 | ushort scent_character7; |
| 201 | ushort scent_character8; |
| 202 | ushort scent_rccm; |
| 203 | ushort scent_rccr; |
| 204 | } smc_cent_t; |
| 205 | |
| 206 | /* Centronics Status Mask Register. |
| 207 | */ |
| 208 | #define SMC_CENT_F ((u_char)0x08) |
| 209 | #define SMC_CENT_PE ((u_char)0x04) |
| 210 | #define SMC_CENT_S ((u_char)0x02) |
| 211 | |
| 212 | /* SMC Event and Mask register. |
| 213 | */ |
| 214 | #define SMCM_BRKE ((unsigned char)0x40) /* When in UART Mode */ |
| 215 | #define SMCM_BRK ((unsigned char)0x10) /* When in UART Mode */ |
| 216 | #define SMCM_TXE ((unsigned char)0x10) /* When in Transparent Mode */ |
| 217 | #define SMCM_BSY ((unsigned char)0x04) |
| 218 | #define SMCM_TX ((unsigned char)0x02) |
| 219 | #define SMCM_RX ((unsigned char)0x01) |
| 220 | |
| 221 | /* Baud rate generators. |
| 222 | */ |
| 223 | #define CPM_BRG_RST ((uint)0x00020000) |
| 224 | #define CPM_BRG_EN ((uint)0x00010000) |
| 225 | #define CPM_BRG_EXTC_INT ((uint)0x00000000) |
| 226 | #define CPM_BRG_EXTC_CLK2 ((uint)0x00004000) |
| 227 | #define CPM_BRG_EXTC_CLK6 ((uint)0x00008000) |
| 228 | #define CPM_BRG_ATB ((uint)0x00002000) |
| 229 | #define CPM_BRG_CD_MASK ((uint)0x00001ffe) |
| 230 | #define CPM_BRG_DIV16 ((uint)0x00000001) |
| 231 | |
| 232 | /* SI Clock Route Register |
| 233 | */ |
| 234 | #define SICR_RCLK_SCC1_BRG1 ((uint)0x00000000) |
| 235 | #define SICR_TCLK_SCC1_BRG1 ((uint)0x00000000) |
| 236 | #define SICR_RCLK_SCC2_BRG2 ((uint)0x00000800) |
| 237 | #define SICR_TCLK_SCC2_BRG2 ((uint)0x00000100) |
| 238 | #define SICR_RCLK_SCC3_BRG3 ((uint)0x00100000) |
| 239 | #define SICR_TCLK_SCC3_BRG3 ((uint)0x00020000) |
| 240 | #define SICR_RCLK_SCC4_BRG4 ((uint)0x18000000) |
| 241 | #define SICR_TCLK_SCC4_BRG4 ((uint)0x03000000) |
| 242 | |
| 243 | /* SCCs. |
| 244 | */ |
| 245 | #define SCC_GSMRH_IRP ((uint)0x00040000) |
| 246 | #define SCC_GSMRH_GDE ((uint)0x00010000) |
| 247 | #define SCC_GSMRH_TCRC_CCITT ((uint)0x00008000) |
| 248 | #define SCC_GSMRH_TCRC_BISYNC ((uint)0x00004000) |
| 249 | #define SCC_GSMRH_TCRC_HDLC ((uint)0x00000000) |
| 250 | #define SCC_GSMRH_REVD ((uint)0x00002000) |
| 251 | #define SCC_GSMRH_TRX ((uint)0x00001000) |
| 252 | #define SCC_GSMRH_TTX ((uint)0x00000800) |
| 253 | #define SCC_GSMRH_CDP ((uint)0x00000400) |
| 254 | #define SCC_GSMRH_CTSP ((uint)0x00000200) |
| 255 | #define SCC_GSMRH_CDS ((uint)0x00000100) |
| 256 | #define SCC_GSMRH_CTSS ((uint)0x00000080) |
| 257 | #define SCC_GSMRH_TFL ((uint)0x00000040) |
| 258 | #define SCC_GSMRH_RFW ((uint)0x00000020) |
| 259 | #define SCC_GSMRH_TXSY ((uint)0x00000010) |
| 260 | #define SCC_GSMRH_SYNL16 ((uint)0x0000000c) |
| 261 | #define SCC_GSMRH_SYNL8 ((uint)0x00000008) |
| 262 | #define SCC_GSMRH_SYNL4 ((uint)0x00000004) |
| 263 | #define SCC_GSMRH_RTSM ((uint)0x00000002) |
| 264 | #define SCC_GSMRH_RSYN ((uint)0x00000001) |
| 265 | |
| 266 | #define SCC_GSMRL_SIR ((uint)0x80000000) /* SCC2 only */ |
| 267 | #define SCC_GSMRL_EDGE_NONE ((uint)0x60000000) |
| 268 | #define SCC_GSMRL_EDGE_NEG ((uint)0x40000000) |
| 269 | #define SCC_GSMRL_EDGE_POS ((uint)0x20000000) |
| 270 | #define SCC_GSMRL_EDGE_BOTH ((uint)0x00000000) |
| 271 | #define SCC_GSMRL_TCI ((uint)0x10000000) |
| 272 | #define SCC_GSMRL_TSNC_3 ((uint)0x0c000000) |
| 273 | #define SCC_GSMRL_TSNC_4 ((uint)0x08000000) |
| 274 | #define SCC_GSMRL_TSNC_14 ((uint)0x04000000) |
| 275 | #define SCC_GSMRL_TSNC_INF ((uint)0x00000000) |
| 276 | #define SCC_GSMRL_RINV ((uint)0x02000000) |
| 277 | #define SCC_GSMRL_TINV ((uint)0x01000000) |
| 278 | #define SCC_GSMRL_TPL_128 ((uint)0x00c00000) |
| 279 | #define SCC_GSMRL_TPL_64 ((uint)0x00a00000) |
| 280 | #define SCC_GSMRL_TPL_48 ((uint)0x00800000) |
| 281 | #define SCC_GSMRL_TPL_32 ((uint)0x00600000) |
| 282 | #define SCC_GSMRL_TPL_16 ((uint)0x00400000) |
| 283 | #define SCC_GSMRL_TPL_8 ((uint)0x00200000) |
| 284 | #define SCC_GSMRL_TPL_NONE ((uint)0x00000000) |
| 285 | #define SCC_GSMRL_TPP_ALL1 ((uint)0x00180000) |
| 286 | #define SCC_GSMRL_TPP_01 ((uint)0x00100000) |
| 287 | #define SCC_GSMRL_TPP_10 ((uint)0x00080000) |
| 288 | #define SCC_GSMRL_TPP_ZEROS ((uint)0x00000000) |
| 289 | #define SCC_GSMRL_TEND ((uint)0x00040000) |
| 290 | #define SCC_GSMRL_TDCR_32 ((uint)0x00030000) |
| 291 | #define SCC_GSMRL_TDCR_16 ((uint)0x00020000) |
| 292 | #define SCC_GSMRL_TDCR_8 ((uint)0x00010000) |
| 293 | #define SCC_GSMRL_TDCR_1 ((uint)0x00000000) |
| 294 | #define SCC_GSMRL_RDCR_32 ((uint)0x0000c000) |
| 295 | #define SCC_GSMRL_RDCR_16 ((uint)0x00008000) |
| 296 | #define SCC_GSMRL_RDCR_8 ((uint)0x00004000) |
| 297 | #define SCC_GSMRL_RDCR_1 ((uint)0x00000000) |
| 298 | #define SCC_GSMRL_RENC_DFMAN ((uint)0x00003000) |
| 299 | #define SCC_GSMRL_RENC_MANCH ((uint)0x00002000) |
| 300 | #define SCC_GSMRL_RENC_FM0 ((uint)0x00001000) |
| 301 | #define SCC_GSMRL_RENC_NRZI ((uint)0x00000800) |
| 302 | #define SCC_GSMRL_RENC_NRZ ((uint)0x00000000) |
| 303 | #define SCC_GSMRL_TENC_DFMAN ((uint)0x00000600) |
| 304 | #define SCC_GSMRL_TENC_MANCH ((uint)0x00000400) |
| 305 | #define SCC_GSMRL_TENC_FM0 ((uint)0x00000200) |
| 306 | #define SCC_GSMRL_TENC_NRZI ((uint)0x00000100) |
| 307 | #define SCC_GSMRL_TENC_NRZ ((uint)0x00000000) |
| 308 | #define SCC_GSMRL_DIAG_LE ((uint)0x000000c0) /* Loop and echo */ |
| 309 | #define SCC_GSMRL_DIAG_ECHO ((uint)0x00000080) |
| 310 | #define SCC_GSMRL_DIAG_LOOP ((uint)0x00000040) |
| 311 | #define SCC_GSMRL_DIAG_NORM ((uint)0x00000000) |
| 312 | #define SCC_GSMRL_ENR ((uint)0x00000020) |
| 313 | #define SCC_GSMRL_ENT ((uint)0x00000010) |
| 314 | #define SCC_GSMRL_MODE_ENET ((uint)0x0000000c) |
| 315 | #define SCC_GSMRL_MODE_QMC ((uint)0x0000000a) |
| 316 | #define SCC_GSMRL_MODE_DDCMP ((uint)0x00000009) |
| 317 | #define SCC_GSMRL_MODE_BISYNC ((uint)0x00000008) |
| 318 | #define SCC_GSMRL_MODE_V14 ((uint)0x00000007) |
| 319 | #define SCC_GSMRL_MODE_AHDLC ((uint)0x00000006) |
| 320 | #define SCC_GSMRL_MODE_PROFIBUS ((uint)0x00000005) |
| 321 | #define SCC_GSMRL_MODE_UART ((uint)0x00000004) |
| 322 | #define SCC_GSMRL_MODE_SS7 ((uint)0x00000003) |
| 323 | #define SCC_GSMRL_MODE_ATALK ((uint)0x00000002) |
| 324 | #define SCC_GSMRL_MODE_HDLC ((uint)0x00000000) |
| 325 | |
| 326 | #define SCC_TODR_TOD ((ushort)0x8000) |
| 327 | |
| 328 | /* SCC Event and Mask register. |
| 329 | */ |
| 330 | #define SCCM_TXE ((unsigned char)0x10) |
| 331 | #define SCCM_BSY ((unsigned char)0x04) |
| 332 | #define SCCM_TX ((unsigned char)0x02) |
| 333 | #define SCCM_RX ((unsigned char)0x01) |
| 334 | |
| 335 | typedef struct scc_param { |
| 336 | ushort scc_rbase; /* Rx Buffer descriptor base address */ |
| 337 | ushort scc_tbase; /* Tx Buffer descriptor base address */ |
| 338 | u_char scc_rfcr; /* Rx function code */ |
| 339 | u_char scc_tfcr; /* Tx function code */ |
| 340 | ushort scc_mrblr; /* Max receive buffer length */ |
| 341 | uint scc_rstate; /* Internal */ |
| 342 | uint scc_idp; /* Internal */ |
| 343 | ushort scc_rbptr; /* Internal */ |
| 344 | ushort scc_ibc; /* Internal */ |
| 345 | uint scc_rxtmp; /* Internal */ |
| 346 | uint scc_tstate; /* Internal */ |
| 347 | uint scc_tdp; /* Internal */ |
| 348 | ushort scc_tbptr; /* Internal */ |
| 349 | ushort scc_tbc; /* Internal */ |
| 350 | uint scc_txtmp; /* Internal */ |
| 351 | uint scc_rcrc; /* Internal */ |
| 352 | uint scc_tcrc; /* Internal */ |
| 353 | } sccp_t; |
| 354 | |
| 355 | /* Function code bits. |
| 356 | */ |
| 357 | #define SCC_EB ((u_char)0x10) /* Set big endian byte order */ |
| 358 | |
| 359 | /* CPM Ethernet through SCCx. |
| 360 | */ |
| 361 | typedef struct scc_enet { |
| 362 | sccp_t sen_genscc; |
| 363 | uint sen_cpres; /* Preset CRC */ |
| 364 | uint sen_cmask; /* Constant mask for CRC */ |
| 365 | uint sen_crcec; /* CRC Error counter */ |
| 366 | uint sen_alec; /* alignment error counter */ |
| 367 | uint sen_disfc; /* discard frame counter */ |
| 368 | ushort sen_pads; /* Tx short frame pad character */ |
| 369 | ushort sen_retlim; /* Retry limit threshold */ |
| 370 | ushort sen_retcnt; /* Retry limit counter */ |
| 371 | ushort sen_maxflr; /* maximum frame length register */ |
| 372 | ushort sen_minflr; /* minimum frame length register */ |
| 373 | ushort sen_maxd1; /* maximum DMA1 length */ |
| 374 | ushort sen_maxd2; /* maximum DMA2 length */ |
| 375 | ushort sen_maxd; /* Rx max DMA */ |
| 376 | ushort sen_dmacnt; /* Rx DMA counter */ |
| 377 | ushort sen_maxb; /* Max BD byte count */ |
| 378 | ushort sen_gaddr1; /* Group address filter */ |
| 379 | ushort sen_gaddr2; |
| 380 | ushort sen_gaddr3; |
| 381 | ushort sen_gaddr4; |
| 382 | uint sen_tbuf0data0; /* Save area 0 - current frame */ |
| 383 | uint sen_tbuf0data1; /* Save area 1 - current frame */ |
| 384 | uint sen_tbuf0rba; /* Internal */ |
| 385 | uint sen_tbuf0crc; /* Internal */ |
| 386 | ushort sen_tbuf0bcnt; /* Internal */ |
| 387 | ushort sen_paddrh; /* physical address (MSB) */ |
| 388 | ushort sen_paddrm; |
| 389 | ushort sen_paddrl; /* physical address (LSB) */ |
| 390 | ushort sen_pper; /* persistence */ |
| 391 | ushort sen_rfbdptr; /* Rx first BD pointer */ |
| 392 | ushort sen_tfbdptr; /* Tx first BD pointer */ |
| 393 | ushort sen_tlbdptr; /* Tx last BD pointer */ |
| 394 | uint sen_tbuf1data0; /* Save area 0 - current frame */ |
| 395 | uint sen_tbuf1data1; /* Save area 1 - current frame */ |
| 396 | uint sen_tbuf1rba; /* Internal */ |
| 397 | uint sen_tbuf1crc; /* Internal */ |
| 398 | ushort sen_tbuf1bcnt; /* Internal */ |
| 399 | ushort sen_txlen; /* Tx Frame length counter */ |
| 400 | ushort sen_iaddr1; /* Individual address filter */ |
| 401 | ushort sen_iaddr2; |
| 402 | ushort sen_iaddr3; |
| 403 | ushort sen_iaddr4; |
| 404 | ushort sen_boffcnt; /* Backoff counter */ |
| 405 | |
| 406 | /* NOTE: Some versions of the manual have the following items |
| 407 | * incorrectly documented. Below is the proper order. |
| 408 | */ |
| 409 | ushort sen_taddrh; /* temp address (MSB) */ |
| 410 | ushort sen_taddrm; |
| 411 | ushort sen_taddrl; /* temp address (LSB) */ |
| 412 | } scc_enet_t; |
| 413 | |
| 414 | /* SCC Event register as used by Ethernet. |
| 415 | */ |
| 416 | #define SCCE_ENET_GRA ((ushort)0x0080) /* Graceful stop complete */ |
| 417 | #define SCCE_ENET_TXE ((ushort)0x0010) /* Transmit Error */ |
| 418 | #define SCCE_ENET_RXF ((ushort)0x0008) /* Full frame received */ |
| 419 | #define SCCE_ENET_BSY ((ushort)0x0004) /* All incoming buffers full */ |
| 420 | #define SCCE_ENET_TXB ((ushort)0x0002) /* A buffer was transmitted */ |
| 421 | #define SCCE_ENET_RXB ((ushort)0x0001) /* A buffer was received */ |
| 422 | |
| 423 | /* SCC Mode Register (PMSR) as used by Ethernet. |
| 424 | */ |
| 425 | #define SCC_PSMR_HBC ((ushort)0x8000) /* Enable heartbeat */ |
| 426 | #define SCC_PSMR_FC ((ushort)0x4000) /* Force collision */ |
| 427 | #define SCC_PSMR_RSH ((ushort)0x2000) /* Receive short frames */ |
| 428 | #define SCC_PSMR_IAM ((ushort)0x1000) /* Check individual hash */ |
| 429 | #define SCC_PSMR_ENCRC ((ushort)0x0800) /* Ethernet CRC mode */ |
| 430 | #define SCC_PSMR_PRO ((ushort)0x0200) /* Promiscuous mode */ |
| 431 | #define SCC_PSMR_BRO ((ushort)0x0100) /* Catch broadcast pkts */ |
| 432 | #define SCC_PSMR_SBT ((ushort)0x0080) /* Special backoff timer */ |
| 433 | #define SCC_PSMR_LPB ((ushort)0x0040) /* Set Loopback mode */ |
| 434 | #define SCC_PSMR_SIP ((ushort)0x0020) /* Sample Input Pins */ |
| 435 | #define SCC_PSMR_LCW ((ushort)0x0010) /* Late collision window */ |
| 436 | #define SCC_PSMR_NIB22 ((ushort)0x000a) /* Start frame search */ |
| 437 | #define SCC_PSMR_FDE ((ushort)0x0001) /* Full duplex enable */ |
| 438 | |
| 439 | /* Buffer descriptor control/status used by Ethernet receive. |
| 440 | */ |
| 441 | #define BD_ENET_RX_EMPTY ((ushort)0x8000) |
| 442 | #define BD_ENET_RX_WRAP ((ushort)0x2000) |
| 443 | #define BD_ENET_RX_INTR ((ushort)0x1000) |
| 444 | #define BD_ENET_RX_LAST ((ushort)0x0800) |
| 445 | #define BD_ENET_RX_FIRST ((ushort)0x0400) |
| 446 | #define BD_ENET_RX_MISS ((ushort)0x0100) |
| 447 | #define BD_ENET_RX_LG ((ushort)0x0020) |
| 448 | #define BD_ENET_RX_NO ((ushort)0x0010) |
| 449 | #define BD_ENET_RX_SH ((ushort)0x0008) |
| 450 | #define BD_ENET_RX_CR ((ushort)0x0004) |
| 451 | #define BD_ENET_RX_OV ((ushort)0x0002) |
| 452 | #define BD_ENET_RX_CL ((ushort)0x0001) |
| 453 | #define BD_ENET_RX_BC ((ushort)0x0080) /* DA is Broadcast */ |
| 454 | #define BD_ENET_RX_MC ((ushort)0x0040) /* DA is Multicast */ |
| 455 | #define BD_ENET_RX_STATS ((ushort)0x013f) /* All status bits */ |
| 456 | |
| 457 | /* Buffer descriptor control/status used by Ethernet transmit. |
| 458 | */ |
| 459 | #define BD_ENET_TX_READY ((ushort)0x8000) |
| 460 | #define BD_ENET_TX_PAD ((ushort)0x4000) |
| 461 | #define BD_ENET_TX_WRAP ((ushort)0x2000) |
| 462 | #define BD_ENET_TX_INTR ((ushort)0x1000) |
| 463 | #define BD_ENET_TX_LAST ((ushort)0x0800) |
| 464 | #define BD_ENET_TX_TC ((ushort)0x0400) |
| 465 | #define BD_ENET_TX_DEF ((ushort)0x0200) |
| 466 | #define BD_ENET_TX_HB ((ushort)0x0100) |
| 467 | #define BD_ENET_TX_LC ((ushort)0x0080) |
| 468 | #define BD_ENET_TX_RL ((ushort)0x0040) |
| 469 | #define BD_ENET_TX_RCMASK ((ushort)0x003c) |
| 470 | #define BD_ENET_TX_UN ((ushort)0x0002) |
| 471 | #define BD_ENET_TX_CSL ((ushort)0x0001) |
| 472 | #define BD_ENET_TX_STATS ((ushort)0x03ff) /* All status bits */ |
| 473 | |
| 474 | /* SCC as UART |
| 475 | */ |
| 476 | typedef struct scc_uart { |
| 477 | sccp_t scc_genscc; |
| 478 | char res1[8]; /* Reserved */ |
| 479 | ushort scc_maxidl; /* Maximum idle chars */ |
| 480 | ushort scc_idlc; /* temp idle counter */ |
| 481 | ushort scc_brkcr; /* Break count register */ |
| 482 | ushort scc_parec; /* receive parity error counter */ |
| 483 | ushort scc_frmec; /* receive framing error counter */ |
| 484 | ushort scc_nosec; /* receive noise counter */ |
| 485 | ushort scc_brkec; /* receive break condition counter */ |
| 486 | ushort scc_brkln; /* last received break length */ |
| 487 | ushort scc_uaddr1; /* UART address character 1 */ |
| 488 | ushort scc_uaddr2; /* UART address character 2 */ |
| 489 | ushort scc_rtemp; /* Temp storage */ |
| 490 | ushort scc_toseq; /* Transmit out of sequence char */ |
| 491 | ushort scc_char1; /* control character 1 */ |
| 492 | ushort scc_char2; /* control character 2 */ |
| 493 | ushort scc_char3; /* control character 3 */ |
| 494 | ushort scc_char4; /* control character 4 */ |
| 495 | ushort scc_char5; /* control character 5 */ |
| 496 | ushort scc_char6; /* control character 6 */ |
| 497 | ushort scc_char7; /* control character 7 */ |
| 498 | ushort scc_char8; /* control character 8 */ |
| 499 | ushort scc_rccm; /* receive control character mask */ |
| 500 | ushort scc_rccr; /* receive control character register */ |
| 501 | ushort scc_rlbc; /* receive last break character */ |
| 502 | } scc_uart_t; |
| 503 | |
| 504 | /* SCC Event and Mask registers when it is used as a UART. |
| 505 | */ |
| 506 | #define UART_SCCM_GLR ((ushort)0x1000) |
| 507 | #define UART_SCCM_GLT ((ushort)0x0800) |
| 508 | #define UART_SCCM_AB ((ushort)0x0200) |
| 509 | #define UART_SCCM_IDL ((ushort)0x0100) |
| 510 | #define UART_SCCM_GRA ((ushort)0x0080) |
| 511 | #define UART_SCCM_BRKE ((ushort)0x0040) |
| 512 | #define UART_SCCM_BRKS ((ushort)0x0020) |
| 513 | #define UART_SCCM_CCR ((ushort)0x0008) |
| 514 | #define UART_SCCM_BSY ((ushort)0x0004) |
| 515 | #define UART_SCCM_TX ((ushort)0x0002) |
| 516 | #define UART_SCCM_RX ((ushort)0x0001) |
| 517 | |
| 518 | /* The SCC PMSR when used as a UART. |
| 519 | */ |
| 520 | #define SCU_PSMR_FLC ((ushort)0x8000) |
| 521 | #define SCU_PSMR_SL ((ushort)0x4000) |
| 522 | #define SCU_PSMR_CL ((ushort)0x3000) |
| 523 | #define SCU_PSMR_UM ((ushort)0x0c00) |
| 524 | #define SCU_PSMR_FRZ ((ushort)0x0200) |
| 525 | #define SCU_PSMR_RZS ((ushort)0x0100) |
| 526 | #define SCU_PSMR_SYN ((ushort)0x0080) |
| 527 | #define SCU_PSMR_DRT ((ushort)0x0040) |
| 528 | #define SCU_PSMR_PEN ((ushort)0x0010) |
| 529 | #define SCU_PSMR_RPM ((ushort)0x000c) |
| 530 | #define SCU_PSMR_REVP ((ushort)0x0008) |
| 531 | #define SCU_PSMR_TPM ((ushort)0x0003) |
| 532 | #define SCU_PSMR_TEVP ((ushort)0x0002) |
| 533 | |
| 534 | /* CPM Transparent mode SCC. |
| 535 | */ |
| 536 | typedef struct scc_trans { |
| 537 | sccp_t st_genscc; |
| 538 | uint st_cpres; /* Preset CRC */ |
| 539 | uint st_cmask; /* Constant mask for CRC */ |
| 540 | } scc_trans_t; |
| 541 | |
| 542 | #define BD_SCC_TX_LAST ((ushort)0x0800) |
| 543 | |
| 544 | /* IIC parameter RAM. |
| 545 | */ |
| 546 | typedef struct iic { |
| 547 | ushort iic_rbase; /* Rx Buffer descriptor base address */ |
| 548 | ushort iic_tbase; /* Tx Buffer descriptor base address */ |
| 549 | u_char iic_rfcr; /* Rx function code */ |
| 550 | u_char iic_tfcr; /* Tx function code */ |
| 551 | ushort iic_mrblr; /* Max receive buffer length */ |
| 552 | uint iic_rstate; /* Internal */ |
| 553 | uint iic_rdp; /* Internal */ |
| 554 | ushort iic_rbptr; /* Internal */ |
| 555 | ushort iic_rbc; /* Internal */ |
| 556 | uint iic_rxtmp; /* Internal */ |
| 557 | uint iic_tstate; /* Internal */ |
| 558 | uint iic_tdp; /* Internal */ |
| 559 | ushort iic_tbptr; /* Internal */ |
| 560 | ushort iic_tbc; /* Internal */ |
| 561 | uint iic_txtmp; /* Internal */ |
| 562 | char res1[4]; /* Reserved */ |
| 563 | ushort iic_rpbase; /* Relocation pointer */ |
| 564 | char res2[2]; /* Reserved */ |
| 565 | } iic_t; |
| 566 | |
| 567 | #define BD_IIC_START ((ushort)0x0400) |
| 568 | |
| 569 | /* SPI parameter RAM. |
| 570 | */ |
| 571 | typedef struct spi { |
| 572 | ushort spi_rbase; /* Rx Buffer descriptor base address */ |
| 573 | ushort spi_tbase; /* Tx Buffer descriptor base address */ |
| 574 | u_char spi_rfcr; /* Rx function code */ |
| 575 | u_char spi_tfcr; /* Tx function code */ |
| 576 | ushort spi_mrblr; /* Max receive buffer length */ |
| 577 | uint spi_rstate; /* Internal */ |
| 578 | uint spi_rdp; /* Internal */ |
| 579 | ushort spi_rbptr; /* Internal */ |
| 580 | ushort spi_rbc; /* Internal */ |
| 581 | uint spi_rxtmp; /* Internal */ |
| 582 | uint spi_tstate; /* Internal */ |
| 583 | uint spi_tdp; /* Internal */ |
| 584 | ushort spi_tbptr; /* Internal */ |
| 585 | ushort spi_tbc; /* Internal */ |
| 586 | uint spi_txtmp; /* Internal */ |
| 587 | uint spi_res; |
| 588 | ushort spi_rpbase; /* Relocation pointer */ |
| 589 | ushort spi_res2; |
| 590 | } spi_t; |
| 591 | |
| 592 | /* SPI Mode register. |
| 593 | */ |
| 594 | #define SPMODE_LOOP ((ushort)0x4000) /* Loopback */ |
| 595 | #define SPMODE_CI ((ushort)0x2000) /* Clock Invert */ |
| 596 | #define SPMODE_CP ((ushort)0x1000) /* Clock Phase */ |
| 597 | #define SPMODE_DIV16 ((ushort)0x0800) /* BRG/16 mode */ |
| 598 | #define SPMODE_REV ((ushort)0x0400) /* Reversed Data */ |
| 599 | #define SPMODE_MSTR ((ushort)0x0200) /* SPI Master */ |
| 600 | #define SPMODE_EN ((ushort)0x0100) /* Enable */ |
| 601 | #define SPMODE_LENMSK ((ushort)0x00f0) /* character length */ |
| 602 | #define SPMODE_LEN4 ((ushort)0x0030) /* 4 bits per char */ |
| 603 | #define SPMODE_LEN8 ((ushort)0x0070) /* 8 bits per char */ |
| 604 | #define SPMODE_LEN16 ((ushort)0x00f0) /* 16 bits per char */ |
| 605 | #define SPMODE_PMMSK ((ushort)0x000f) /* prescale modulus */ |
| 606 | |
| 607 | /* SPIE fields */ |
| 608 | #define SPIE_MME 0x20 |
| 609 | #define SPIE_TXE 0x10 |
| 610 | #define SPIE_BSY 0x04 |
| 611 | #define SPIE_TXB 0x02 |
| 612 | #define SPIE_RXB 0x01 |
| 613 | |
| 614 | /* |
| 615 | * RISC Controller Configuration Register definitons |
| 616 | */ |
| 617 | #define RCCR_TIME 0x8000 /* RISC Timer Enable */ |
| 618 | #define RCCR_TIMEP(t) (((t) & 0x3F)<<8) /* RISC Timer Period */ |
| 619 | #define RCCR_TIME_MASK 0x00FF /* not RISC Timer related bits */ |
| 620 | |
| 621 | /* RISC Timer Parameter RAM offset */ |
| 622 | #define PROFF_RTMR ((uint)0x01B0) |
| 623 | |
| 624 | typedef struct risc_timer_pram { |
| 625 | unsigned short tm_base; /* RISC Timer Table Base Address */ |
| 626 | unsigned short tm_ptr; /* RISC Timer Table Pointer (internal) */ |
| 627 | unsigned short r_tmr; /* RISC Timer Mode Register */ |
| 628 | unsigned short r_tmv; /* RISC Timer Valid Register */ |
| 629 | unsigned long tm_cmd; /* RISC Timer Command Register */ |
| 630 | unsigned long tm_cnt; /* RISC Timer Internal Count */ |
| 631 | } rt_pram_t; |
| 632 | |
| 633 | /* Bits in RISC Timer Command Register */ |
| 634 | #define TM_CMD_VALID 0x80000000 /* Valid - Enables the timer */ |
| 635 | #define TM_CMD_RESTART 0x40000000 /* Restart - for automatic restart */ |
| 636 | #define TM_CMD_PWM 0x20000000 /* Run in Pulse Width Modulation Mode */ |
| 637 | #define TM_CMD_NUM(n) (((n)&0xF)<<16) /* Timer Number */ |
| 638 | #define TM_CMD_PERIOD(p) ((p)&0xFFFF) /* Timer Period */ |
| 639 | |
| 640 | /* CPM interrupts. There are nearly 32 interrupts generated by CPM |
| 641 | * channels or devices. All of these are presented to the PPC core |
| 642 | * as a single interrupt. The CPM interrupt handler dispatches its |
| 643 | * own handlers, in a similar fashion to the PPC core handler. We |
| 644 | * use the table as defined in the manuals (i.e. no special high |
| 645 | * priority and SCC1 == SCCa, etc...). |
| 646 | */ |
| 647 | #define CPMVEC_NR 32 |
| 648 | #define CPMVEC_PIO_PC15 ((ushort)0x1f) |
| 649 | #define CPMVEC_SCC1 ((ushort)0x1e) |
| 650 | #define CPMVEC_SCC2 ((ushort)0x1d) |
| 651 | #define CPMVEC_SCC3 ((ushort)0x1c) |
| 652 | #define CPMVEC_SCC4 ((ushort)0x1b) |
| 653 | #define CPMVEC_PIO_PC14 ((ushort)0x1a) |
| 654 | #define CPMVEC_TIMER1 ((ushort)0x19) |
| 655 | #define CPMVEC_PIO_PC13 ((ushort)0x18) |
| 656 | #define CPMVEC_PIO_PC12 ((ushort)0x17) |
| 657 | #define CPMVEC_SDMA_CB_ERR ((ushort)0x16) |
| 658 | #define CPMVEC_IDMA1 ((ushort)0x15) |
| 659 | #define CPMVEC_IDMA2 ((ushort)0x14) |
| 660 | #define CPMVEC_TIMER2 ((ushort)0x12) |
| 661 | #define CPMVEC_RISCTIMER ((ushort)0x11) |
| 662 | #define CPMVEC_I2C ((ushort)0x10) |
| 663 | #define CPMVEC_PIO_PC11 ((ushort)0x0f) |
| 664 | #define CPMVEC_PIO_PC10 ((ushort)0x0e) |
| 665 | #define CPMVEC_TIMER3 ((ushort)0x0c) |
| 666 | #define CPMVEC_PIO_PC9 ((ushort)0x0b) |
| 667 | #define CPMVEC_PIO_PC8 ((ushort)0x0a) |
| 668 | #define CPMVEC_PIO_PC7 ((ushort)0x09) |
| 669 | #define CPMVEC_TIMER4 ((ushort)0x07) |
| 670 | #define CPMVEC_PIO_PC6 ((ushort)0x06) |
| 671 | #define CPMVEC_SPI ((ushort)0x05) |
| 672 | #define CPMVEC_SMC1 ((ushort)0x04) |
| 673 | #define CPMVEC_SMC2 ((ushort)0x03) |
| 674 | #define CPMVEC_PIO_PC5 ((ushort)0x02) |
| 675 | #define CPMVEC_PIO_PC4 ((ushort)0x01) |
| 676 | #define CPMVEC_ERROR ((ushort)0x00) |
| 677 | |
| 678 | /* CPM interrupt configuration vector. |
| 679 | */ |
| 680 | #define CICR_SCD_SCC4 ((uint)0x00c00000) /* SCC4 @ SCCd */ |
| 681 | #define CICR_SCC_SCC3 ((uint)0x00200000) /* SCC3 @ SCCc */ |
| 682 | #define CICR_SCB_SCC2 ((uint)0x00040000) /* SCC2 @ SCCb */ |
| 683 | #define CICR_SCA_SCC1 ((uint)0x00000000) /* SCC1 @ SCCa */ |
joe@perches.com | f3d711a | 2007-12-18 06:30:15 +1100 | [diff] [blame] | 684 | #define CICR_IRL_MASK ((uint)0x0000e000) /* Core interrupt */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 685 | #define CICR_HP_MASK ((uint)0x00001f00) /* Hi-pri int. */ |
| 686 | #define CICR_IEN ((uint)0x00000080) /* Int. enable */ |
| 687 | #define CICR_SPS ((uint)0x00000001) /* SCC Spread */ |
| 688 | |
Al Viro | 39e3eb7 | 2006-10-09 12:48:42 +0100 | [diff] [blame] | 689 | extern void cpm_install_handler(int vec, void (*handler)(void *), void *dev_id); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 690 | extern void cpm_free_handler(int vec); |
| 691 | |
| 692 | #endif /* __CPM_8XX__ */ |