mpc52xx_psc.h
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/*
* include/asm-ppc/mpc52xx_psc.h
*
* Definitions of consts/structs to drive the Freescale MPC52xx OnChip
* PSCs. Theses are shared between multiple drivers since a PSC can be
* UART, AC97, IR, I2S, ... So this header is in asm-ppc.
*
*
* Maintainer : Sylvain Munaut <tnt@246tNt.com>
*
* Based/Extracted from some header of the 2.4 originally written by
* Dale Farnsworth <dfarnsworth@mvista.com>
*
* Copyright (C) 2004 Sylvain Munaut <tnt@246tNt.com>
* Copyright (C) 2003 MontaVista, Software, Inc.
*
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
* kind, whether express or implied.
*/
#ifndef __ASM_MPC52xx_PSC_H__
#define __ASM_MPC52xx_PSC_H__
#include <asm/types.h>
/* Max number of PSCs */
#define MPC52xx_PSC_MAXNUM 6
/* Programmable Serial Controller (PSC) status register bits */
#define MPC52xx_PSC_SR_CDE 0x0080
#define MPC52xx_PSC_SR_RXRDY 0x0100
#define MPC52xx_PSC_SR_RXFULL 0x0200
#define MPC52xx_PSC_SR_TXRDY 0x0400
#define MPC52xx_PSC_SR_TXEMP 0x0800
#define MPC52xx_PSC_SR_OE 0x1000
#define MPC52xx_PSC_SR_PE 0x2000
#define MPC52xx_PSC_SR_FE 0x4000
#define MPC52xx_PSC_SR_RB 0x8000
/* PSC Command values */
#define MPC52xx_PSC_RX_ENABLE 0x0001
#define MPC52xx_PSC_RX_DISABLE 0x0002
#define MPC52xx_PSC_TX_ENABLE 0x0004
#define MPC52xx_PSC_TX_DISABLE 0x0008
#define MPC52xx_PSC_SEL_MODE_REG_1 0x0010
#define MPC52xx_PSC_RST_RX 0x0020
#define MPC52xx_PSC_RST_TX 0x0030
#define MPC52xx_PSC_RST_ERR_STAT 0x0040
#define MPC52xx_PSC_RST_BRK_CHG_INT 0x0050
#define MPC52xx_PSC_START_BRK 0x0060
#define MPC52xx_PSC_STOP_BRK 0x0070
/* PSC TxRx FIFO status bits */
#define MPC52xx_PSC_RXTX_FIFO_ERR 0x0040
#define MPC52xx_PSC_RXTX_FIFO_UF 0x0020
#define MPC52xx_PSC_RXTX_FIFO_OF 0x0010
#define MPC52xx_PSC_RXTX_FIFO_FR 0x0008
#define MPC52xx_PSC_RXTX_FIFO_FULL 0x0004
#define MPC52xx_PSC_RXTX_FIFO_ALARM 0x0002
#define MPC52xx_PSC_RXTX_FIFO_EMPTY 0x0001
/* PSC interrupt mask bits */
#define MPC52xx_PSC_IMR_TXRDY 0x0100
#define MPC52xx_PSC_IMR_RXRDY 0x0200
#define MPC52xx_PSC_IMR_DB 0x0400
#define MPC52xx_PSC_IMR_IPC 0x8000
/* PSC input port change bit */
#define MPC52xx_PSC_CTS 0x01
#define MPC52xx_PSC_DCD 0x02
#define MPC52xx_PSC_D_CTS 0x10
#define MPC52xx_PSC_D_DCD 0x20
/* PSC mode fields */
#define MPC52xx_PSC_MODE_5_BITS 0x00
#define MPC52xx_PSC_MODE_6_BITS 0x01
#define MPC52xx_PSC_MODE_7_BITS 0x02
#define MPC52xx_PSC_MODE_8_BITS 0x03
#define MPC52xx_PSC_MODE_BITS_MASK 0x03
#define MPC52xx_PSC_MODE_PAREVEN 0x00
#define MPC52xx_PSC_MODE_PARODD 0x04
#define MPC52xx_PSC_MODE_PARFORCE 0x08
#define MPC52xx_PSC_MODE_PARNONE 0x10
#define MPC52xx_PSC_MODE_ERR 0x20
#define MPC52xx_PSC_MODE_FFULL 0x40
#define MPC52xx_PSC_MODE_RXRTS 0x80
#define MPC52xx_PSC_MODE_ONE_STOP_5_BITS 0x00
#define MPC52xx_PSC_MODE_ONE_STOP 0x07
#define MPC52xx_PSC_MODE_TWO_STOP 0x0f
#define MPC52xx_PSC_RFNUM_MASK 0x01ff
/* Structure of the hardware registers */
struct mpc52xx_psc {
u8 mode; /* PSC + 0x00 */
u8 reserved0[3];
union { /* PSC + 0x04 */
u16 status;
u16 clock_select;
} sr_csr;
#define mpc52xx_psc_status sr_csr.status
#define mpc52xx_psc_clock_select sr_csr.clock_select
u16 reserved1;
u8 command; /* PSC + 0x08 */
u8 reserved2[3];
union { /* PSC + 0x0c */
u8 buffer_8;
u16 buffer_16;
u32 buffer_32;
} buffer;
#define mpc52xx_psc_buffer_8 buffer.buffer_8
#define mpc52xx_psc_buffer_16 buffer.buffer_16
#define mpc52xx_psc_buffer_32 buffer.buffer_32
union { /* PSC + 0x10 */
u8 ipcr;
u8 acr;
} ipcr_acr;
#define mpc52xx_psc_ipcr ipcr_acr.ipcr
#define mpc52xx_psc_acr ipcr_acr.acr
u8 reserved3[3];
union { /* PSC + 0x14 */
u16 isr;
u16 imr;
} isr_imr;
#define mpc52xx_psc_isr isr_imr.isr
#define mpc52xx_psc_imr isr_imr.imr
u16 reserved4;
u8 ctur; /* PSC + 0x18 */
u8 reserved5[3];
u8 ctlr; /* PSC + 0x1c */
u8 reserved6[3];
u16 ccr; /* PSC + 0x20 */
u8 reserved7[14];
u8 ivr; /* PSC + 0x30 */
u8 reserved8[3];
u8 ip; /* PSC + 0x34 */
u8 reserved9[3];
u8 op1; /* PSC + 0x38 */
u8 reserved10[3];
u8 op0; /* PSC + 0x3c */
u8 reserved11[3];
u32 sicr; /* PSC + 0x40 */
u8 ircr1; /* PSC + 0x44 */
u8 reserved13[3];
u8 ircr2; /* PSC + 0x44 */
u8 reserved14[3];
u8 irsdr; /* PSC + 0x4c */
u8 reserved15[3];
u8 irmdr; /* PSC + 0x50 */
u8 reserved16[3];
u8 irfdr; /* PSC + 0x54 */
u8 reserved17[3];
u16 rfnum; /* PSC + 0x58 */
u16 reserved18;
u16 tfnum; /* PSC + 0x5c */
u16 reserved19;
u32 rfdata; /* PSC + 0x60 */
u16 rfstat; /* PSC + 0x64 */
u16 reserved20;
u8 rfcntl; /* PSC + 0x68 */
u8 reserved21[5];
u16 rfalarm; /* PSC + 0x6e */
u16 reserved22;
u16 rfrptr; /* PSC + 0x72 */
u16 reserved23;
u16 rfwptr; /* PSC + 0x76 */
u16 reserved24;
u16 rflrfptr; /* PSC + 0x7a */
u16 reserved25;
u16 rflwfptr; /* PSC + 0x7e */
u32 tfdata; /* PSC + 0x80 */
u16 tfstat; /* PSC + 0x84 */
u16 reserved26;
u8 tfcntl; /* PSC + 0x88 */
u8 reserved27[5];
u16 tfalarm; /* PSC + 0x8e */
u16 reserved28;
u16 tfrptr; /* PSC + 0x92 */
u16 reserved29;
u16 tfwptr; /* PSC + 0x96 */
u16 reserved30;
u16 tflrfptr; /* PSC + 0x9a */
u16 reserved31;
u16 tflwfptr; /* PSC + 0x9e */
};
#endif /* __ASM_MPC52xx_PSC_H__ */