1 /* 2 * include/asm-ppc/mpc52xx_psc.h 3 * 4 * Definitions of consts/structs to drive the Freescale MPC52xx OnChip 5 * PSCs. Theses are shared between multiple drivers since a PSC can be 6 * UART, AC97, IR, I2S, ... So this header is in asm-ppc. 7 * 8 * 9 * Maintainer : Sylvain Munaut <tnt@246tNt.com> 10 * 11 * Based/Extracted from some header of the 2.4 originally written by 12 * Dale Farnsworth <dfarnsworth@mvista.com> 13 * 14 * Copyright (C) 2004 Sylvain Munaut <tnt@246tNt.com> 15 * Copyright (C) 2003 MontaVista, Software, Inc. 16 * 17 * This file is licensed under the terms of the GNU General Public License 18 * version 2. This program is licensed "as is" without any warranty of any 19 * kind, whether express or implied. 20 */ 21 22 #ifndef __ASM_MPC52xx_PSC_H__ 23 #define __ASM_MPC52xx_PSC_H__ 24 25 #include <asm/types.h> 26 27 /* Max number of PSCs */ 28 #define MPC52xx_PSC_MAXNUM 6 29 30 /* Programmable Serial Controller (PSC) status register bits */ 31 #define MPC52xx_PSC_SR_CDE 0x0080 32 #define MPC52xx_PSC_SR_RXRDY 0x0100 33 #define MPC52xx_PSC_SR_RXFULL 0x0200 34 #define MPC52xx_PSC_SR_TXRDY 0x0400 35 #define MPC52xx_PSC_SR_TXEMP 0x0800 36 #define MPC52xx_PSC_SR_OE 0x1000 37 #define MPC52xx_PSC_SR_PE 0x2000 38 #define MPC52xx_PSC_SR_FE 0x4000 39 #define MPC52xx_PSC_SR_RB 0x8000 40 41 /* PSC Command values */ 42 #define MPC52xx_PSC_RX_ENABLE 0x0001 43 #define MPC52xx_PSC_RX_DISABLE 0x0002 44 #define MPC52xx_PSC_TX_ENABLE 0x0004 45 #define MPC52xx_PSC_TX_DISABLE 0x0008 46 #define MPC52xx_PSC_SEL_MODE_REG_1 0x0010 47 #define MPC52xx_PSC_RST_RX 0x0020 48 #define MPC52xx_PSC_RST_TX 0x0030 49 #define MPC52xx_PSC_RST_ERR_STAT 0x0040 50 #define MPC52xx_PSC_RST_BRK_CHG_INT 0x0050 51 #define MPC52xx_PSC_START_BRK 0x0060 52 #define MPC52xx_PSC_STOP_BRK 0x0070 53 54 /* PSC TxRx FIFO status bits */ 55 #define MPC52xx_PSC_RXTX_FIFO_ERR 0x0040 56 #define MPC52xx_PSC_RXTX_FIFO_UF 0x0020 57 #define MPC52xx_PSC_RXTX_FIFO_OF 0x0010 58 #define MPC52xx_PSC_RXTX_FIFO_FR 0x0008 59 #define MPC52xx_PSC_RXTX_FIFO_FULL 0x0004 60 #define MPC52xx_PSC_RXTX_FIFO_ALARM 0x0002 61 #define MPC52xx_PSC_RXTX_FIFO_EMPTY 0x0001 62 63 /* PSC interrupt status/mask bits */ 64 #define MPC52xx_PSC_IMR_TXRDY 0x0100 65 #define MPC52xx_PSC_IMR_RXRDY 0x0200 66 #define MPC52xx_PSC_IMR_DB 0x0400 67 #define MPC52xx_PSC_IMR_TXEMP 0x0800 68 #define MPC52xx_PSC_IMR_ORERR 0x1000 69 #define MPC52xx_PSC_IMR_IPC 0x8000 70 71 /* PSC input port change bit */ 72 #define MPC52xx_PSC_CTS 0x01 73 #define MPC52xx_PSC_DCD 0x02 74 #define MPC52xx_PSC_D_CTS 0x10 75 #define MPC52xx_PSC_D_DCD 0x20 76 77 /* PSC mode fields */ 78 #define MPC52xx_PSC_MODE_5_BITS 0x00 79 #define MPC52xx_PSC_MODE_6_BITS 0x01 80 #define MPC52xx_PSC_MODE_7_BITS 0x02 81 #define MPC52xx_PSC_MODE_8_BITS 0x03 82 #define MPC52xx_PSC_MODE_BITS_MASK 0x03 83 #define MPC52xx_PSC_MODE_PAREVEN 0x00 84 #define MPC52xx_PSC_MODE_PARODD 0x04 85 #define MPC52xx_PSC_MODE_PARFORCE 0x08 86 #define MPC52xx_PSC_MODE_PARNONE 0x10 87 #define MPC52xx_PSC_MODE_ERR 0x20 88 #define MPC52xx_PSC_MODE_FFULL 0x40 89 #define MPC52xx_PSC_MODE_RXRTS 0x80 90 91 #define MPC52xx_PSC_MODE_ONE_STOP_5_BITS 0x00 92 #define MPC52xx_PSC_MODE_ONE_STOP 0x07 93 #define MPC52xx_PSC_MODE_TWO_STOP 0x0f 94 95 #define MPC52xx_PSC_RFNUM_MASK 0x01ff 96 97 #define MPC52xx_PSC_SICR_DTS1 (1 << 29) 98 #define MPC52xx_PSC_SICR_SHDR (1 << 28) 99 #define MPC52xx_PSC_SICR_SIM_MASK (0xf << 24) 100 #define MPC52xx_PSC_SICR_SIM_UART (0x0 << 24) 101 #define MPC52xx_PSC_SICR_SIM_UART_DCD (0x8 << 24) 102 #define MPC52xx_PSC_SICR_SIM_CODEC_8 (0x1 << 24) 103 #define MPC52xx_PSC_SICR_SIM_CODEC_16 (0x2 << 24) 104 #define MPC52xx_PSC_SICR_SIM_AC97 (0x3 << 24) 105 #define MPC52xx_PSC_SICR_SIM_SIR (0x8 << 24) 106 #define MPC52xx_PSC_SICR_SIM_SIR_DCD (0xc << 24) 107 #define MPC52xx_PSC_SICR_SIM_MIR (0x5 << 24) 108 #define MPC52xx_PSC_SICR_SIM_FIR (0x6 << 24) 109 #define MPC52xx_PSC_SICR_SIM_CODEC_24 (0x7 << 24) 110 #define MPC52xx_PSC_SICR_SIM_CODEC_32 (0xf << 24) 111 #define MPC52xx_PSC_SICR_GENCLK (1 << 23) 112 #define MPC52xx_PSC_SICR_I2S (1 << 22) 113 #define MPC52xx_PSC_SICR_CLKPOL (1 << 21) 114 #define MPC52xx_PSC_SICR_SYNCPOL (1 << 20) 115 #define MPC52xx_PSC_SICR_CELLSLAVE (1 << 19) 116 #define MPC52xx_PSC_SICR_CELL2XCLK (1 << 18) 117 #define MPC52xx_PSC_SICR_ESAI (1 << 17) 118 #define MPC52xx_PSC_SICR_ENAC97 (1 << 16) 119 #define MPC52xx_PSC_SICR_SPI (1 << 15) 120 #define MPC52xx_PSC_SICR_MSTR (1 << 14) 121 #define MPC52xx_PSC_SICR_CPOL (1 << 13) 122 #define MPC52xx_PSC_SICR_CPHA (1 << 12) 123 #define MPC52xx_PSC_SICR_USEEOF (1 << 11) 124 #define MPC52xx_PSC_SICR_DISABLEEOF (1 << 10) 125 126 /* Structure of the hardware registers */ 127 struct mpc52xx_psc { 128 u8 mode; /* PSC + 0x00 */ 129 u8 reserved0[3]; 130 union { /* PSC + 0x04 */ 131 u16 status; 132 u16 clock_select; 133 } sr_csr; 134 #define mpc52xx_psc_status sr_csr.status 135 #define mpc52xx_psc_clock_select sr_csr.clock_select 136 u16 reserved1; 137 u8 command; /* PSC + 0x08 */ 138 u8 reserved2[3]; 139 union { /* PSC + 0x0c */ 140 u8 buffer_8; 141 u16 buffer_16; 142 u32 buffer_32; 143 } buffer; 144 #define mpc52xx_psc_buffer_8 buffer.buffer_8 145 #define mpc52xx_psc_buffer_16 buffer.buffer_16 146 #define mpc52xx_psc_buffer_32 buffer.buffer_32 147 union { /* PSC + 0x10 */ 148 u8 ipcr; 149 u8 acr; 150 } ipcr_acr; 151 #define mpc52xx_psc_ipcr ipcr_acr.ipcr 152 #define mpc52xx_psc_acr ipcr_acr.acr 153 u8 reserved3[3]; 154 union { /* PSC + 0x14 */ 155 u16 isr; 156 u16 imr; 157 } isr_imr; 158 #define mpc52xx_psc_isr isr_imr.isr 159 #define mpc52xx_psc_imr isr_imr.imr 160 u16 reserved4; 161 u8 ctur; /* PSC + 0x18 */ 162 u8 reserved5[3]; 163 u8 ctlr; /* PSC + 0x1c */ 164 u8 reserved6[3]; 165 /* BitClkDiv field of CCR is byte swapped in 166 * the hardware for mpc5200/b compatibility */ 167 u32 ccr; /* PSC + 0x20 */ 168 u32 ac97_slots; /* PSC + 0x24 */ 169 u32 ac97_cmd; /* PSC + 0x28 */ 170 u32 ac97_data; /* PSC + 0x2c */ 171 u8 ivr; /* PSC + 0x30 */ 172 u8 reserved8[3]; 173 u8 ip; /* PSC + 0x34 */ 174 u8 reserved9[3]; 175 u8 op1; /* PSC + 0x38 */ 176 u8 reserved10[3]; 177 u8 op0; /* PSC + 0x3c */ 178 u8 reserved11[3]; 179 u32 sicr; /* PSC + 0x40 */ 180 u8 ircr1; /* PSC + 0x44 */ 181 u8 reserved13[3]; 182 u8 ircr2; /* PSC + 0x44 */ 183 u8 reserved14[3]; 184 u8 irsdr; /* PSC + 0x4c */ 185 u8 reserved15[3]; 186 u8 irmdr; /* PSC + 0x50 */ 187 u8 reserved16[3]; 188 u8 irfdr; /* PSC + 0x54 */ 189 u8 reserved17[3]; 190 }; 191 192 struct mpc52xx_psc_fifo { 193 u16 rfnum; /* PSC + 0x58 */ 194 u16 reserved18; 195 u16 tfnum; /* PSC + 0x5c */ 196 u16 reserved19; 197 u32 rfdata; /* PSC + 0x60 */ 198 u16 rfstat; /* PSC + 0x64 */ 199 u16 reserved20; 200 u8 rfcntl; /* PSC + 0x68 */ 201 u8 reserved21[5]; 202 u16 rfalarm; /* PSC + 0x6e */ 203 u16 reserved22; 204 u16 rfrptr; /* PSC + 0x72 */ 205 u16 reserved23; 206 u16 rfwptr; /* PSC + 0x76 */ 207 u16 reserved24; 208 u16 rflrfptr; /* PSC + 0x7a */ 209 u16 reserved25; 210 u16 rflwfptr; /* PSC + 0x7e */ 211 u32 tfdata; /* PSC + 0x80 */ 212 u16 tfstat; /* PSC + 0x84 */ 213 u16 reserved26; 214 u8 tfcntl; /* PSC + 0x88 */ 215 u8 reserved27[5]; 216 u16 tfalarm; /* PSC + 0x8e */ 217 u16 reserved28; 218 u16 tfrptr; /* PSC + 0x92 */ 219 u16 reserved29; 220 u16 tfwptr; /* PSC + 0x96 */ 221 u16 reserved30; 222 u16 tflrfptr; /* PSC + 0x9a */ 223 u16 reserved31; 224 u16 tflwfptr; /* PSC + 0x9e */ 225 }; 226 227 #define MPC512x_PSC_FIFO_RESET_SLICE 0x80 228 #define MPC512x_PSC_FIFO_ENABLE_SLICE 0x01 229 #define MPC512x_PSC_FIFO_ENABLE_DMA 0x04 230 231 #define MPC512x_PSC_FIFO_EMPTY 0x1 232 #define MPC512x_PSC_FIFO_FULL 0x2 233 #define MPC512x_PSC_FIFO_ALARM 0x4 234 #define MPC512x_PSC_FIFO_URERR 0x8 235 #define MPC512x_PSC_FIFO_ORERR 0x01 236 #define MPC512x_PSC_FIFO_MEMERROR 0x02 237 238 struct mpc512x_psc_fifo { 239 u32 reserved1[10]; 240 u32 txcmd; /* PSC + 0x80 */ 241 u32 txalarm; /* PSC + 0x84 */ 242 u32 txsr; /* PSC + 0x88 */ 243 u32 txisr; /* PSC + 0x8c */ 244 u32 tximr; /* PSC + 0x90 */ 245 u32 txcnt; /* PSC + 0x94 */ 246 u32 txptr; /* PSC + 0x98 */ 247 u32 txsz; /* PSC + 0x9c */ 248 u32 reserved2[7]; 249 union { 250 u8 txdata_8; 251 u16 txdata_16; 252 u32 txdata_32; 253 } txdata; /* PSC + 0xbc */ 254 #define txdata_8 txdata.txdata_8 255 #define txdata_16 txdata.txdata_16 256 #define txdata_32 txdata.txdata_32 257 u32 rxcmd; /* PSC + 0xc0 */ 258 u32 rxalarm; /* PSC + 0xc4 */ 259 u32 rxsr; /* PSC + 0xc8 */ 260 u32 rxisr; /* PSC + 0xcc */ 261 u32 rximr; /* PSC + 0xd0 */ 262 u32 rxcnt; /* PSC + 0xd4 */ 263 u32 rxptr; /* PSC + 0xd8 */ 264 u32 rxsz; /* PSC + 0xdc */ 265 u32 reserved3[7]; 266 union { 267 u8 rxdata_8; 268 u16 rxdata_16; 269 u32 rxdata_32; 270 } rxdata; /* PSC + 0xfc */ 271 #define rxdata_8 rxdata.rxdata_8 272 #define rxdata_16 rxdata.rxdata_16 273 #define rxdata_32 rxdata.rxdata_32 274 }; 275 276 #endif /* __ASM_MPC52xx_PSC_H__ */ 277