| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * linux/include/asm-arm/arch-sa1100/ide.h |
| 3 | * |
| 4 | * Copyright (c) 1998 Hugo Fiennes & Nicolas Pitre |
| 5 | * |
| 6 | * 18-aug-2000: Cleanup by Erik Mouw (J.A.K.Mouw@its.tudelft.nl) |
| 7 | * Get rid of the special ide_init_hwif_ports() functions |
| 8 | * and make a generalised function that can be used by all |
| 9 | * architectures. |
| 10 | */ |
| 11 | |
| 12 | #include <linux/config.h> |
| 13 | #include <asm/irq.h> |
| 14 | #include <asm/hardware.h> |
| 15 | #include <asm/mach-types.h> |
| 16 | |
| 17 | #error "This code is broken and needs update to match with current ide support" |
| 18 | |
| 19 | |
| 20 | /* |
| 21 | * Set up a hw structure for a specified data port, control port and IRQ. |
| 22 | * This should follow whatever the default interface uses. |
| 23 | */ |
| 24 | static inline void ide_init_hwif_ports(hw_regs_t *hw, unsigned long data_port, |
| 25 | unsigned long ctrl_port, int *irq) |
| 26 | { |
| 27 | unsigned long reg = data_port; |
| 28 | int i; |
| 29 | int regincr = 1; |
| 30 | |
| 31 | /* The Empeg board has the first two address lines unused */ |
| 32 | if (machine_is_empeg()) |
| 33 | regincr = 1 << 2; |
| 34 | |
| 35 | /* The LART doesn't use A0 for IDE */ |
| 36 | if (machine_is_lart()) |
| 37 | regincr = 1 << 1; |
| 38 | |
| 39 | memset(hw, 0, sizeof(*hw)); |
| 40 | |
| 41 | for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) { |
| 42 | hw->io_ports[i] = reg; |
| 43 | reg += regincr; |
| 44 | } |
| 45 | |
| 46 | hw->io_ports[IDE_CONTROL_OFFSET] = ctrl_port; |
| 47 | |
| 48 | if (irq) |
| 49 | *irq = 0; |
| 50 | } |
| 51 | |
| 52 | /* |
| 53 | * This registers the standard ports for this architecture with the IDE |
| 54 | * driver. |
| 55 | */ |
| 56 | static __inline__ void |
| 57 | ide_init_default_hwifs(void) |
| 58 | { |
| 59 | if (machine_is_lart()) { |
| 60 | #ifdef CONFIG_SA1100_LART |
| 61 | hw_regs_t hw; |
| 62 | |
| 63 | /* Enable GPIO as interrupt line */ |
| 64 | GPDR &= ~LART_GPIO_IDE; |
| 65 | set_irq_type(LART_IRQ_IDE, IRQT_RISING); |
| 66 | |
| 67 | /* set PCMCIA interface timing */ |
| 68 | MECR = 0x00060006; |
| 69 | |
| 70 | /* init the interface */ |
| 71 | ide_init_hwif_ports(&hw, PCMCIA_IO_0_BASE + 0x0000, PCMCIA_IO_0_BASE + 0x1000, NULL); |
| 72 | hw.irq = LART_IRQ_IDE; |
| 73 | ide_register_hw(&hw); |
| 74 | #endif |
| 75 | } |
| 76 | } |