diff options
Diffstat (limited to 'arch/ia64/include/asm/sn/ioc3.h')
| -rw-r--r-- | arch/ia64/include/asm/sn/ioc3.h | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/sn/ioc3.h b/arch/ia64/include/asm/sn/ioc3.h new file mode 100644 index 000000000..d4a524951 --- /dev/null +++ b/arch/ia64/include/asm/sn/ioc3.h @@ -0,0 +1,242 @@ +/* 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 */ |