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/*
* (C) Copyright 2000
* Rob Taylor, Flying Pig Systems. robt@flyingpig.com.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/* winbond access routines and defines*/
/* from the winbond data sheet -
The W83C553F SIO controller with PCI arbiter is a multi-function PCI device.
Function 0 is the ISA bridge, and Function 1 is the bus master IDE controller.
*/
/*ISA bridge configuration space*/
#define W83C553F_VID 0x10AD
#define W83C553F_DID 0x0565
#define WINBOND_PCICONTR 0x40 /*pci control reg*/
#define WINBOND_SGBAR 0x41 /*scatter/gather base address reg*/
#define WINBOND_LBCR 0x42 /*Line Buffer Control reg*/
#define WINBOND_IDEIRCR 0x43 /*IDE Interrupt Routing Control Reg*/
#define WINBOND_PCIIRCR 0x44 /*PCI Interrupt Routing Control Reg*/
#define WINBOND_BTBAR 0x46 /*BIOS Timer Base Address Register*/
#define WINBOND_IPADCR 0x48 /*ISA to PCI Address Decoder Control Register*/
#define WINBOND_IRADCR 0x49 /*ISA ROM Address Decoder Control Register*/
#define WINBOND_IPMHSAR 0x4a /*ISA to PCI Memory Hole STart Address Register*/
#define WINBOND_IPMHSR 0x4b /*ISA to PCI Memory Hols Size Register*/
#define WINBOND_CDR 0x4c /*Clock Divisor Register*/
#define WINBOND_CSCR 0x4d /*Chip Select Control Register*/
#define WINBOND_ATSCR 0x4e /*AT System Control register*/
#define WINBOND_ATBCR 0x4f /*AT Bus ControL Register*/
#define WINBOND_IRQBEE0R 0x60 /*IRQ Break Event Enable 0 Register*/
#define WINBOND_IRQBEE1R 0x61 /*IRQ Break Event Enable 1 Register*/
#define WINBOND_ABEER 0x62 /*Additional Break Event Enable Register*/
#define WINBOND_DMABEER 0x63 /*DMA Break Event Enable Register*/
#define WINDOND_IDECSR 0x40 /*IDE Control/Status Register, Function 1*/
#define IPADCR_MBE512 0x1
#define IPADCR_MBE640 0x2
#define IPADCR_IPATOM4 0x10
#define IPADCR_IPATOM5 0x20
#define IPADCR_IPATOM6 0x40
#define IPADCR_IPATOM7 0x80
#define CSCR_UBIOSCSE 0x10
#define CSCR_BIOSWP 0x20
#define IDECSR_P0EN 0x01
#define IDECSR_P0F16 0x02
#define IDECSR_P1EN 0x10
#define IDECSR_P1F16 0x20
#define IDECSR_LEGIRQ 0x800
/*
* Interrupt controller
*/
#define W83C553F_PIC1_ICW1 CONFIG_SYS_ISA_IO + 0x20
#define W83C553F_PIC1_ICW2 CONFIG_SYS_ISA_IO + 0x21
#define W83C553F_PIC1_ICW3 CONFIG_SYS_ISA_IO + 0x21
#define W83C553F_PIC1_ICW4 CONFIG_SYS_ISA_IO + 0x21
#define W83C553F_PIC1_OCW1 CONFIG_SYS_ISA_IO + 0x21
#define W83C553F_PIC1_OCW2 CONFIG_SYS_ISA_IO + 0x20
#define W83C553F_PIC1_OCW3 CONFIG_SYS_ISA_IO + 0x20
#define W83C553F_PIC1_ELC CONFIG_SYS_ISA_IO + 0x4D0
#define W83C553F_PIC2_ICW1 CONFIG_SYS_ISA_IO + 0xA0
#define W83C553F_PIC2_ICW2 CONFIG_SYS_ISA_IO + 0xA1
#define W83C553F_PIC2_ICW3 CONFIG_SYS_ISA_IO + 0xA1
#define W83C553F_PIC2_ICW4 CONFIG_SYS_ISA_IO + 0xA1
#define W83C553F_PIC2_OCW1 CONFIG_SYS_ISA_IO + 0xA1
#define W83C553F_PIC2_OCW2 CONFIG_SYS_ISA_IO + 0xA0
#define W83C553F_PIC2_OCW3 CONFIG_SYS_ISA_IO + 0xA0
#define W83C553F_PIC2_ELC CONFIG_SYS_ISA_IO + 0x4D1
#define W83C553F_TMR1_CMOD CONFIG_SYS_ISA_IO + 0x43
/*
* DMA controller
*/
#define W83C553F_DMA1 CONFIG_SYS_ISA_IO + 0x000 /* channel 0 - 3 */
#define W83C553F_DMA2 CONFIG_SYS_ISA_IO + 0x0C0 /* channel 4 - 7 */
/* command/status register bit definitions */
#define W83C553F_CS_COM_DACKAL (1<<7) /* DACK# assert level */
#define W83C553F_CS_COM_DREQSAL (1<<6) /* DREQ sense assert level */
#define W83C553F_CS_COM_GAP (1<<4) /* group arbitration priority */
#define W83C553F_CS_COM_CGE (1<<2) /* channel group enable */
#define W83C553F_CS_STAT_CH0REQ (1<<4) /* channel 0 (4) DREQ status */
#define W83C553F_CS_STAT_CH1REQ (1<<5) /* channel 1 (5) DREQ status */
#define W83C553F_CS_STAT_CH2REQ (1<<6) /* channel 2 (6) DREQ status */
#define W83C553F_CS_STAT_CH3REQ (1<<7) /* channel 3 (7) DREQ status */
#define W83C553F_CS_STAT_CH0TC (1<<0) /* channel 0 (4) TC status */
#define W83C553F_CS_STAT_CH1TC (1<<1) /* channel 1 (5) TC status */
#define W83C553F_CS_STAT_CH2TC (1<<2) /* channel 2 (6) TC status */
#define W83C553F_CS_STAT_CH3TC (1<<3) /* channel 3 (7) TC status */
/* mode register bit definitions */
#define W83C553F_MODE_TM_DEMAND (0<<6) /* transfer mode - demand */
#define W83C553F_MODE_TM_SINGLE (1<<6) /* transfer mode - single */
#define W83C553F_MODE_TM_BLOCK (2<<6) /* transfer mode - block */
#define W83C553F_MODE_TM_CASCADE (3<<6) /* transfer mode - cascade */
#define W83C553F_MODE_ADDRDEC (1<<5) /* address increment/decrement select */
#define W83C553F_MODE_AUTOINIT (1<<4) /* autoinitialize enable */
#define W83C553F_MODE_TT_VERIFY (0<<2) /* transfer type - verify */
#define W83C553F_MODE_TT_WRITE (1<<2) /* transfer type - write */
#define W83C553F_MODE_TT_READ (2<<2) /* transfer type - read */
#define W83C553F_MODE_TT_ILLEGAL (3<<2) /* transfer type - illegal */
#define W83C553F_MODE_CH0SEL (0<<0) /* channel 0 (4) select */
#define W83C553F_MODE_CH1SEL (1<<0) /* channel 1 (5) select */
#define W83C553F_MODE_CH2SEL (2<<0) /* channel 2 (6) select */
#define W83C553F_MODE_CH3SEL (3<<0) /* channel 3 (7) select */
/* request register bit definitions */
#define W83C553F_REQ_CHSERREQ (1<<2) /* channel service request */
#define W83C553F_REQ_CH0SEL (0<<0) /* channel 0 (4) select */
#define W83C553F_REQ_CH1SEL (1<<0) /* channel 1 (5) select */
#define W83C553F_REQ_CH2SEL (2<<0) /* channel 2 (6) select */
#define W83C553F_REQ_CH3SEL (3<<0) /* channel 3 (7) select */
/* write single mask bit register bit definitions */
#define W83C553F_WSMB_CHMASKSEL (1<<2) /* channel mask select */
#define W83C553F_WSMB_CH0SEL (0<<0) /* channel 0 (4) select */
#define W83C553F_WSMB_CH1SEL (1<<0) /* channel 1 (5) select */
#define W83C553F_WSMB_CH2SEL (2<<0) /* channel 2 (6) select */
#define W83C553F_WSMB_CH3SEL (3<<0) /* channel 3 (7) select */
/* read/write all mask bits register bit definitions */
#define W83C553F_RWAMB_CH0MASK (1<<0) /* channel 0 (4) mask */
#define W83C553F_RWAMB_CH1MASK (1<<1) /* channel 1 (5) mask */
#define W83C553F_RWAMB_CH2MASK (1<<2) /* channel 2 (6) mask */
#define W83C553F_RWAMB_CH3MASK (1<<3) /* channel 3 (7) mask */
/* typedefs */
#define W83C553F_DMA1_CS 0x8
#define W83C553F_DMA1_WR 0x9
#define W83C553F_DMA1_WSMB 0xA
#define W83C553F_DMA1_WM 0xB
#define W83C553F_DMA1_CBP 0xC
#define W83C553F_DMA1_MC 0xD
#define W83C553F_DMA1_CM 0xE
#define W83C553F_DMA1_RWAMB 0xF
#define W83C553F_DMA2_CS 0x10
#define W83C553F_DMA2_WR 0x12
#define W83C553F_DMA2_WSMB 0x14
#define W83C553F_DMA2_WM 0x16
#define W83C553F_DMA2_CBP 0x18
#define W83C553F_DMA2_MC 0x1A
#define W83C553F_DMA2_CM 0x1C
#define W83C553F_DMA2_RWAMB 0x1E
void initialise_w83c553f(void);
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