| /* |
| * (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); |