163 lines
6.4 KiB
C
163 lines
6.4 KiB
C
/*
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* (C) Copyright 2000
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* Rob Taylor, Flying Pig Systems. robt@flyingpig.com.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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/* winbond access routines and defines*/
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/* from the winbond data sheet -
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The W83C553F SIO controller with PCI arbiter is a multi-function PCI device.
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Function 0 is the ISA bridge, and Function 1 is the bus master IDE controller.
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*/
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/*ISA bridge configuration space*/
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#define W83C553F_VID 0x10AD
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#define W83C553F_DID 0x0565
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#define WINBOND_PCICONTR 0x40 /*pci control reg*/
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#define WINBOND_SGBAR 0x41 /*scatter/gather base address reg*/
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#define WINBOND_LBCR 0x42 /*Line Buffer Control reg*/
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#define WINBOND_IDEIRCR 0x43 /*IDE Interrupt Routing Control Reg*/
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#define WINBOND_PCIIRCR 0x44 /*PCI Interrupt Routing Control Reg*/
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#define WINBOND_BTBAR 0x46 /*BIOS Timer Base Address Register*/
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#define WINBOND_IPADCR 0x48 /*ISA to PCI Address Decoder Control Register*/
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#define WINBOND_IRADCR 0x49 /*ISA ROM Address Decoder Control Register*/
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#define WINBOND_IPMHSAR 0x4a /*ISA to PCI Memory Hole STart Address Register*/
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#define WINBOND_IPMHSR 0x4b /*ISA to PCI Memory Hols Size Register*/
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#define WINBOND_CDR 0x4c /*Clock Divisor Register*/
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#define WINBOND_CSCR 0x4d /*Chip Select Control Register*/
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#define WINBOND_ATSCR 0x4e /*AT System Control register*/
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#define WINBOND_ATBCR 0x4f /*AT Bus ControL Register*/
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#define WINBOND_IRQBEE0R 0x60 /*IRQ Break Event Enable 0 Register*/
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#define WINBOND_IRQBEE1R 0x61 /*IRQ Break Event Enable 1 Register*/
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#define WINBOND_ABEER 0x62 /*Additional Break Event Enable Register*/
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#define WINBOND_DMABEER 0x63 /*DMA Break Event Enable Register*/
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#define WINDOND_IDECSR 0x40 /*IDE Control/Status Register, Function 1*/
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#define IPADCR_MBE512 0x1
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#define IPADCR_MBE640 0x2
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#define IPADCR_IPATOM4 0x10
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#define IPADCR_IPATOM5 0x20
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#define IPADCR_IPATOM6 0x40
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#define IPADCR_IPATOM7 0x80
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#define CSCR_UBIOSCSE 0x10
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#define CSCR_BIOSWP 0x20
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#define IDECSR_P0EN 0x01
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#define IDECSR_P0F16 0x02
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#define IDECSR_P1EN 0x10
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#define IDECSR_P1F16 0x20
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#define IDECSR_LEGIRQ 0x800
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/*
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* Interrupt controller
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*/
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#define W83C553F_PIC1_ICW1 CONFIG_SYS_ISA_IO + 0x20
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#define W83C553F_PIC1_ICW2 CONFIG_SYS_ISA_IO + 0x21
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#define W83C553F_PIC1_ICW3 CONFIG_SYS_ISA_IO + 0x21
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#define W83C553F_PIC1_ICW4 CONFIG_SYS_ISA_IO + 0x21
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#define W83C553F_PIC1_OCW1 CONFIG_SYS_ISA_IO + 0x21
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#define W83C553F_PIC1_OCW2 CONFIG_SYS_ISA_IO + 0x20
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#define W83C553F_PIC1_OCW3 CONFIG_SYS_ISA_IO + 0x20
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#define W83C553F_PIC1_ELC CONFIG_SYS_ISA_IO + 0x4D0
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#define W83C553F_PIC2_ICW1 CONFIG_SYS_ISA_IO + 0xA0
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#define W83C553F_PIC2_ICW2 CONFIG_SYS_ISA_IO + 0xA1
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#define W83C553F_PIC2_ICW3 CONFIG_SYS_ISA_IO + 0xA1
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#define W83C553F_PIC2_ICW4 CONFIG_SYS_ISA_IO + 0xA1
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#define W83C553F_PIC2_OCW1 CONFIG_SYS_ISA_IO + 0xA1
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#define W83C553F_PIC2_OCW2 CONFIG_SYS_ISA_IO + 0xA0
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#define W83C553F_PIC2_OCW3 CONFIG_SYS_ISA_IO + 0xA0
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#define W83C553F_PIC2_ELC CONFIG_SYS_ISA_IO + 0x4D1
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#define W83C553F_TMR1_CMOD CONFIG_SYS_ISA_IO + 0x43
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/*
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* DMA controller
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*/
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#define W83C553F_DMA1 CONFIG_SYS_ISA_IO + 0x000 /* channel 0 - 3 */
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#define W83C553F_DMA2 CONFIG_SYS_ISA_IO + 0x0C0 /* channel 4 - 7 */
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/* command/status register bit definitions */
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#define W83C553F_CS_COM_DACKAL (1<<7) /* DACK# assert level */
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#define W83C553F_CS_COM_DREQSAL (1<<6) /* DREQ sense assert level */
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#define W83C553F_CS_COM_GAP (1<<4) /* group arbitration priority */
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#define W83C553F_CS_COM_CGE (1<<2) /* channel group enable */
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#define W83C553F_CS_STAT_CH0REQ (1<<4) /* channel 0 (4) DREQ status */
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#define W83C553F_CS_STAT_CH1REQ (1<<5) /* channel 1 (5) DREQ status */
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#define W83C553F_CS_STAT_CH2REQ (1<<6) /* channel 2 (6) DREQ status */
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#define W83C553F_CS_STAT_CH3REQ (1<<7) /* channel 3 (7) DREQ status */
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#define W83C553F_CS_STAT_CH0TC (1<<0) /* channel 0 (4) TC status */
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#define W83C553F_CS_STAT_CH1TC (1<<1) /* channel 1 (5) TC status */
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#define W83C553F_CS_STAT_CH2TC (1<<2) /* channel 2 (6) TC status */
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#define W83C553F_CS_STAT_CH3TC (1<<3) /* channel 3 (7) TC status */
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/* mode register bit definitions */
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#define W83C553F_MODE_TM_DEMAND (0<<6) /* transfer mode - demand */
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#define W83C553F_MODE_TM_SINGLE (1<<6) /* transfer mode - single */
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#define W83C553F_MODE_TM_BLOCK (2<<6) /* transfer mode - block */
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#define W83C553F_MODE_TM_CASCADE (3<<6) /* transfer mode - cascade */
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#define W83C553F_MODE_ADDRDEC (1<<5) /* address increment/decrement select */
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#define W83C553F_MODE_AUTOINIT (1<<4) /* autoinitialize enable */
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#define W83C553F_MODE_TT_VERIFY (0<<2) /* transfer type - verify */
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#define W83C553F_MODE_TT_WRITE (1<<2) /* transfer type - write */
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#define W83C553F_MODE_TT_READ (2<<2) /* transfer type - read */
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#define W83C553F_MODE_TT_ILLEGAL (3<<2) /* transfer type - illegal */
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#define W83C553F_MODE_CH0SEL (0<<0) /* channel 0 (4) select */
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#define W83C553F_MODE_CH1SEL (1<<0) /* channel 1 (5) select */
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#define W83C553F_MODE_CH2SEL (2<<0) /* channel 2 (6) select */
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#define W83C553F_MODE_CH3SEL (3<<0) /* channel 3 (7) select */
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/* request register bit definitions */
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#define W83C553F_REQ_CHSERREQ (1<<2) /* channel service request */
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#define W83C553F_REQ_CH0SEL (0<<0) /* channel 0 (4) select */
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#define W83C553F_REQ_CH1SEL (1<<0) /* channel 1 (5) select */
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#define W83C553F_REQ_CH2SEL (2<<0) /* channel 2 (6) select */
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#define W83C553F_REQ_CH3SEL (3<<0) /* channel 3 (7) select */
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/* write single mask bit register bit definitions */
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#define W83C553F_WSMB_CHMASKSEL (1<<2) /* channel mask select */
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#define W83C553F_WSMB_CH0SEL (0<<0) /* channel 0 (4) select */
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#define W83C553F_WSMB_CH1SEL (1<<0) /* channel 1 (5) select */
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#define W83C553F_WSMB_CH2SEL (2<<0) /* channel 2 (6) select */
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#define W83C553F_WSMB_CH3SEL (3<<0) /* channel 3 (7) select */
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/* read/write all mask bits register bit definitions */
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#define W83C553F_RWAMB_CH0MASK (1<<0) /* channel 0 (4) mask */
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#define W83C553F_RWAMB_CH1MASK (1<<1) /* channel 1 (5) mask */
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#define W83C553F_RWAMB_CH2MASK (1<<2) /* channel 2 (6) mask */
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#define W83C553F_RWAMB_CH3MASK (1<<3) /* channel 3 (7) mask */
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/* typedefs */
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#define W83C553F_DMA1_CS 0x8
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#define W83C553F_DMA1_WR 0x9
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#define W83C553F_DMA1_WSMB 0xA
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#define W83C553F_DMA1_WM 0xB
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#define W83C553F_DMA1_CBP 0xC
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#define W83C553F_DMA1_MC 0xD
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#define W83C553F_DMA1_CM 0xE
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#define W83C553F_DMA1_RWAMB 0xF
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#define W83C553F_DMA2_CS 0x10
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#define W83C553F_DMA2_WR 0x12
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#define W83C553F_DMA2_WSMB 0x14
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#define W83C553F_DMA2_WM 0x16
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#define W83C553F_DMA2_CBP 0x18
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#define W83C553F_DMA2_MC 0x1A
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#define W83C553F_DMA2_CM 0x1C
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#define W83C553F_DMA2_RWAMB 0x1E
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void initialise_w83c553f(void);
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