| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * Copyright (C) 2005 Silicon Graphics, Inc. |
| */ |
| #ifndef IA64_SN_IOC3_H |
| #define IA64_SN_IOC3_H |
| |
| /* serial port register map */ |
| struct ioc3_serialregs { |
| uint32_t sscr; |
| uint32_t stpir; |
| uint32_t stcir; |
| uint32_t srpir; |
| uint32_t srcir; |
| uint32_t srtr; |
| uint32_t shadow; |
| }; |
| |
| /* SUPERIO uart register map */ |
| struct ioc3_uartregs { |
| char iu_lcr; |
| union { |
| char iir; /* read only */ |
| char fcr; /* write only */ |
| } u3; |
| union { |
| char ier; /* DLAB == 0 */ |
| char dlm; /* DLAB == 1 */ |
| } u2; |
| union { |
| char rbr; /* read only, DLAB == 0 */ |
| char thr; /* write only, DLAB == 0 */ |
| char dll; /* DLAB == 1 */ |
| } u1; |
| char iu_scr; |
| char iu_msr; |
| char iu_lsr; |
| char iu_mcr; |
| }; |
| |
| #define iu_rbr u1.rbr |
| #define iu_thr u1.thr |
| #define iu_dll u1.dll |
| #define iu_ier u2.ier |
| #define iu_dlm u2.dlm |
| #define iu_iir u3.iir |
| #define iu_fcr u3.fcr |
| |
| struct ioc3_sioregs { |
| char fill[0x170]; |
| struct ioc3_uartregs uartb; |
| struct ioc3_uartregs uarta; |
| }; |
| |
| /* PCI IO/mem space register map */ |
| struct ioc3 { |
| uint32_t pci_id; |
| uint32_t pci_scr; |
| uint32_t pci_rev; |
| uint32_t pci_lat; |
| uint32_t pci_addr; |
| uint32_t pci_err_addr_l; |
| uint32_t pci_err_addr_h; |
| |
| uint32_t sio_ir; |
| /* these registers are read-only for general kernel code. To |
| * modify them use the functions in ioc3.c |
| */ |
| uint32_t sio_ies; |
| uint32_t sio_iec; |
| uint32_t sio_cr; |
| uint32_t int_out; |
| uint32_t mcr; |
| uint32_t gpcr_s; |
| uint32_t gpcr_c; |
| uint32_t gpdr; |
| uint32_t gppr[9]; |
| char fill[0x4c]; |
| |
| /* serial port registers */ |
| uint32_t sbbr_h; |
| uint32_t sbbr_l; |
| |
| struct ioc3_serialregs port_a; |
| struct ioc3_serialregs port_b; |
| char fill1[0x1ff10]; |
| /* superio registers */ |
| struct ioc3_sioregs sregs; |
| }; |
| |
| /* These don't exist on the ioc3 serial card... */ |
| #define eier fill1[8] |
| #define eisr fill1[4] |
| |
| #define PCI_LAT 0xc /* Latency Timer */ |
| #define PCI_SCR_DROP_MODE_EN 0x00008000 /* drop pios on parity err */ |
| #define UARTA_BASE 0x178 |
| #define UARTB_BASE 0x170 |
| |
| |
| /* bitmasks for serial RX status byte */ |
| #define RXSB_OVERRUN 0x01 /* char(s) lost */ |
| #define RXSB_PAR_ERR 0x02 /* parity error */ |
| #define RXSB_FRAME_ERR 0x04 /* framing error */ |
| #define RXSB_BREAK 0x08 /* break character */ |
| #define RXSB_CTS 0x10 /* state of CTS */ |
| #define RXSB_DCD 0x20 /* state of DCD */ |
| #define RXSB_MODEM_VALID 0x40 /* DCD, CTS and OVERRUN are valid */ |
| #define RXSB_DATA_VALID 0x80 /* FRAME_ERR PAR_ERR & BREAK valid */ |
| |
| /* bitmasks for serial TX control byte */ |
| #define TXCB_INT_WHEN_DONE 0x20 /* interrupt after this byte is sent */ |
| #define TXCB_INVALID 0x00 /* byte is invalid */ |
| #define TXCB_VALID 0x40 /* byte is valid */ |
| #define TXCB_MCR 0x80 /* data<7:0> to modem cntrl register */ |
| #define TXCB_DELAY 0xc0 /* delay data<7:0> mSec */ |
| |
| /* bitmasks for SBBR_L */ |
| #define SBBR_L_SIZE 0x00000001 /* 0 1KB rings, 1 4KB rings */ |
| |
| /* bitmasks for SSCR_<A:B> */ |
| #define SSCR_RX_THRESHOLD 0x000001ff /* hiwater mark */ |
| #define SSCR_TX_TIMER_BUSY 0x00010000 /* TX timer in progress */ |
| #define SSCR_HFC_EN 0x00020000 /* h/w flow cntrl enabled */ |
| #define SSCR_RX_RING_DCD 0x00040000 /* postRX record on delta-DCD */ |
| #define SSCR_RX_RING_CTS 0x00080000 /* postRX record on delta-CTS */ |
| #define SSCR_HIGH_SPD 0x00100000 /* 4X speed */ |
| #define SSCR_DIAG 0x00200000 /* bypass clock divider */ |
| #define SSCR_RX_DRAIN 0x08000000 /* drain RX buffer to memory */ |
| #define SSCR_DMA_EN 0x10000000 /* enable ring buffer DMA */ |
| #define SSCR_DMA_PAUSE 0x20000000 /* pause DMA */ |
| #define SSCR_PAUSE_STATE 0x40000000 /* set when PAUSE takes effect*/ |
| #define SSCR_RESET 0x80000000 /* reset DMA channels */ |
| |
| /* all producer/consumer pointers are the same bitfield */ |
| #define PROD_CONS_PTR_4K 0x00000ff8 /* for 4K buffers */ |
| #define PROD_CONS_PTR_1K 0x000003f8 /* for 1K buffers */ |
| #define PROD_CONS_PTR_OFF 3 |
| |
| /* bitmasks for SRCIR_<A:B> */ |
| #define SRCIR_ARM 0x80000000 /* arm RX timer */ |
| |
| /* bitmasks for SHADOW_<A:B> */ |
| #define SHADOW_DR 0x00000001 /* data ready */ |
| #define SHADOW_OE 0x00000002 /* overrun error */ |
| #define SHADOW_PE 0x00000004 /* parity error */ |
| #define SHADOW_FE 0x00000008 /* framing error */ |
| #define SHADOW_BI 0x00000010 /* break interrupt */ |
| #define SHADOW_THRE 0x00000020 /* transmit holding reg empty */ |
| #define SHADOW_TEMT 0x00000040 /* transmit shift reg empty */ |
| #define SHADOW_RFCE 0x00000080 /* char in RX fifo has error */ |
| #define SHADOW_DCTS 0x00010000 /* delta clear to send */ |
| #define SHADOW_DDCD 0x00080000 /* delta data carrier detect */ |
| #define SHADOW_CTS 0x00100000 /* clear to send */ |
| #define SHADOW_DCD 0x00800000 /* data carrier detect */ |
| #define SHADOW_DTR 0x01000000 /* data terminal ready */ |
| #define SHADOW_RTS 0x02000000 /* request to send */ |
| #define SHADOW_OUT1 0x04000000 /* 16550 OUT1 bit */ |
| #define SHADOW_OUT2 0x08000000 /* 16550 OUT2 bit */ |
| #define SHADOW_LOOP 0x10000000 /* loopback enabled */ |
| |
| /* bitmasks for SRTR_<A:B> */ |
| #define SRTR_CNT 0x00000fff /* reload value for RX timer */ |
| #define SRTR_CNT_VAL 0x0fff0000 /* current value of RX timer */ |
| #define SRTR_CNT_VAL_SHIFT 16 |
| #define SRTR_HZ 16000 /* SRTR clock frequency */ |
| |
| /* bitmasks for SIO_IR, SIO_IEC and SIO_IES */ |
| #define SIO_IR_SA_TX_MT 0x00000001 /* Serial port A TX empty */ |
| #define SIO_IR_SA_RX_FULL 0x00000002 /* port A RX buf full */ |
| #define SIO_IR_SA_RX_HIGH 0x00000004 /* port A RX hiwat */ |
| #define SIO_IR_SA_RX_TIMER 0x00000008 /* port A RX timeout */ |
| #define SIO_IR_SA_DELTA_DCD 0x00000010 /* port A delta DCD */ |
| #define SIO_IR_SA_DELTA_CTS 0x00000020 /* port A delta CTS */ |
| #define SIO_IR_SA_INT 0x00000040 /* port A pass-thru intr */ |
| #define SIO_IR_SA_TX_EXPLICIT 0x00000080 /* port A explicit TX thru */ |
| #define SIO_IR_SA_MEMERR 0x00000100 /* port A PCI error */ |
| #define SIO_IR_SB_TX_MT 0x00000200 |
| #define SIO_IR_SB_RX_FULL 0x00000400 |
| #define SIO_IR_SB_RX_HIGH 0x00000800 |
| #define SIO_IR_SB_RX_TIMER 0x00001000 |
| #define SIO_IR_SB_DELTA_DCD 0x00002000 |
| #define SIO_IR_SB_DELTA_CTS 0x00004000 |
| #define SIO_IR_SB_INT 0x00008000 |
| #define SIO_IR_SB_TX_EXPLICIT 0x00010000 |
| #define SIO_IR_SB_MEMERR 0x00020000 |
| #define SIO_IR_PP_INT 0x00040000 /* P port pass-thru intr */ |
| #define SIO_IR_PP_INTA 0x00080000 /* PP context A thru */ |
| #define SIO_IR_PP_INTB 0x00100000 /* PP context B thru */ |
| #define SIO_IR_PP_MEMERR 0x00200000 /* PP PCI error */ |
| #define SIO_IR_KBD_INT 0x00400000 /* kbd/mouse intr */ |
| #define SIO_IR_RT_INT 0x08000000 /* RT output pulse */ |
| #define SIO_IR_GEN_INT1 0x10000000 /* RT input pulse */ |
| #define SIO_IR_GEN_INT_SHIFT 28 |
| |
| /* per device interrupt masks */ |
| #define SIO_IR_SA (SIO_IR_SA_TX_MT | \ |
| SIO_IR_SA_RX_FULL | \ |
| SIO_IR_SA_RX_HIGH | \ |
| SIO_IR_SA_RX_TIMER | \ |
| SIO_IR_SA_DELTA_DCD | \ |
| SIO_IR_SA_DELTA_CTS | \ |
| SIO_IR_SA_INT | \ |
| SIO_IR_SA_TX_EXPLICIT | \ |
| SIO_IR_SA_MEMERR) |
| |
| #define SIO_IR_SB (SIO_IR_SB_TX_MT | \ |
| SIO_IR_SB_RX_FULL | \ |
| SIO_IR_SB_RX_HIGH | \ |
| SIO_IR_SB_RX_TIMER | \ |
| SIO_IR_SB_DELTA_DCD | \ |
| SIO_IR_SB_DELTA_CTS | \ |
| SIO_IR_SB_INT | \ |
| SIO_IR_SB_TX_EXPLICIT | \ |
| SIO_IR_SB_MEMERR) |
| |
| #define SIO_IR_PP (SIO_IR_PP_INT | SIO_IR_PP_INTA | \ |
| SIO_IR_PP_INTB | SIO_IR_PP_MEMERR) |
| #define SIO_IR_RT (SIO_IR_RT_INT | SIO_IR_GEN_INT1) |
| |
| /* bitmasks for SIO_CR */ |
| #define SIO_CR_CMD_PULSE_SHIFT 15 |
| #define SIO_CR_SER_A_BASE_SHIFT 1 |
| #define SIO_CR_SER_B_BASE_SHIFT 8 |
| #define SIO_CR_ARB_DIAG 0x00380000 /* cur !enet PCI requet (ro) */ |
| #define SIO_CR_ARB_DIAG_TXA 0x00000000 |
| #define SIO_CR_ARB_DIAG_RXA 0x00080000 |
| #define SIO_CR_ARB_DIAG_TXB 0x00100000 |
| #define SIO_CR_ARB_DIAG_RXB 0x00180000 |
| #define SIO_CR_ARB_DIAG_PP 0x00200000 |
| #define SIO_CR_ARB_DIAG_IDLE 0x00400000 /* 0 -> active request (ro) */ |
| |
| /* defs for some of the generic I/O pins */ |
| #define GPCR_PHY_RESET 0x20 /* pin is output to PHY reset */ |
| #define GPCR_UARTB_MODESEL 0x40 /* pin is output to port B mode sel */ |
| #define GPCR_UARTA_MODESEL 0x80 /* pin is output to port A mode sel */ |
| |
| #define GPPR_PHY_RESET_PIN 5 /* GIO pin controlling phy reset */ |
| #define GPPR_UARTB_MODESEL_PIN 6 /* GIO pin cntrling uartb modeselect */ |
| #define GPPR_UARTA_MODESEL_PIN 7 /* GIO pin cntrling uarta modeselect */ |
| |
| #endif /* IA64_SN_IOC3_H */ |
