| /* |
| * BK Id: %F% %I% %G% %U% %#% |
| */ |
| /* |
| * linux/include/asm-ppc/ide.h |
| * |
| * Copyright (C) 1994-1996 Linus Torvalds & authors */ |
| |
| /* |
| * This file contains the ppc architecture specific IDE code. |
| */ |
| |
| #ifndef __ASMPPC_IDE_H |
| #define __ASMPPC_IDE_H |
| |
| #ifdef __KERNEL__ |
| |
| #include <linux/sched.h> |
| #include <asm/processor.h> |
| #include <asm/mpc8xx.h> |
| |
| #ifndef MAX_HWIFS |
| #define MAX_HWIFS 8 |
| #endif |
| |
| #include <asm/hdreg.h> |
| |
| #include <linux/config.h> |
| #include <linux/hdreg.h> |
| #include <linux/ioport.h> |
| #include <asm/io.h> |
| |
| struct ide_machdep_calls { |
| int (*default_irq)(ide_ioreg_t base); |
| ide_ioreg_t (*default_io_base)(int index); |
| void (*ide_init_hwif)(hw_regs_t *hw, |
| ide_ioreg_t data_port, |
| ide_ioreg_t ctrl_port, |
| int *irq); |
| }; |
| |
| extern struct ide_machdep_calls ppc_ide_md; |
| |
| #undef SUPPORT_SLOW_DATA_PORTS |
| #define SUPPORT_SLOW_DATA_PORTS 0 |
| |
| #define ide__sti() __sti() |
| |
| static __inline__ int ide_default_irq(ide_ioreg_t base) |
| { |
| if (ppc_ide_md.default_irq) |
| return ppc_ide_md.default_irq(base); |
| return 0; |
| } |
| |
| static __inline__ ide_ioreg_t ide_default_io_base(int index) |
| { |
| if (ppc_ide_md.default_io_base) |
| return ppc_ide_md.default_io_base(index); |
| return 0; |
| } |
| |
| /* |
| * This is only used for PC-style IDE controllers (e.g. as on PReP) |
| * or for PCI IDE devices, not for other types of IDE interface such |
| * as the pmac IDE interfaces. |
| */ |
| static __inline__ void ide_init_hwif_ports(hw_regs_t *hw, |
| ide_ioreg_t data_port, |
| ide_ioreg_t ctrl_port, int *irq) |
| { |
| ide_ioreg_t reg = data_port; |
| int i; |
| |
| for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) |
| hw->io_ports[i] = reg++; |
| if (ctrl_port) { |
| hw->io_ports[IDE_CONTROL_OFFSET] = ctrl_port; |
| } else { |
| hw->io_ports[IDE_CONTROL_OFFSET] = |
| hw->io_ports[IDE_DATA_OFFSET] + 0x206; |
| } |
| if (irq != NULL) |
| *irq = 0; |
| hw->io_ports[IDE_IRQ_OFFSET] = 0; |
| if (ppc_ide_md.ide_init_hwif != NULL) |
| ppc_ide_md.ide_init_hwif(hw, data_port, ctrl_port, irq); |
| } |
| |
| static __inline__ void ide_init_default_hwifs(void) |
| { |
| #ifndef CONFIG_PCI |
| hw_regs_t hw; |
| int index; |
| ide_ioreg_t base; |
| |
| for (index = 0; index < MAX_HWIFS; index++) { |
| base = ide_default_io_base(index); |
| if (base == 0) |
| continue; |
| ide_init_hwif_ports(&hw, base, 0, NULL); |
| hw.irq = ide_default_irq(base); |
| ide_register_hw(&hw, NULL); |
| } |
| #endif |
| } |
| |
| #if (defined CONFIG_APUS || defined CONFIG_BLK_DEV_MPC8xx_IDE ) |
| #define ATA_ARCH_ACK_INTR |
| #endif |
| |
| #endif /* __KERNEL__ */ |
| |
| #endif /* __ASMPPC_IDE_H */ |