2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
6 * Copyright (C) 2000 Ralf Baechle
7 * Copyright (C) 2000 Silicon Graphics, Inc.
12 #include <linux/config.h>
16 #define IIO_ITTE_BASE 0x400160 /* base of translation table entries */
17 #define IIO_ITTE(bigwin) (IIO_ITTE_BASE + 8*(bigwin))
19 #define IIO_ITTE_OFFSET_BITS 5 /* size of offset field */
20 #define IIO_ITTE_OFFSET_MASK ((1<<IIO_ITTE_OFFSET_BITS)-1)
21 #define IIO_ITTE_OFFSET_SHIFT 0
23 #define IIO_ITTE_WIDGET_BITS 4 /* size of widget field */
24 #define IIO_ITTE_WIDGET_MASK ((1<<IIO_ITTE_WIDGET_BITS)-1)
25 #define IIO_ITTE_WIDGET_SHIFT 8
27 #define IIO_ITTE_IOSP 1 /* I/O Space bit */
28 #define IIO_ITTE_IOSP_MASK 1
29 #define IIO_ITTE_IOSP_SHIFT 12
30 #define HUB_PIO_MAP_TO_MEM 0
31 #define HUB_PIO_MAP_TO_IO 1
33 #define IIO_ITTE_INVALID_WIDGET 3 /* an invalid widget */
35 #define IIO_ITTE_PUT(nasid, bigwin, io_or_mem, widget, addr) \
36 REMOTE_HUB_S((nasid), IIO_ITTE(bigwin), \
37 (((((addr) >> BWIN_SIZE_BITS) & \
38 IIO_ITTE_OFFSET_MASK) << IIO_ITTE_OFFSET_SHIFT) | \
39 (io_or_mem << IIO_ITTE_IOSP_SHIFT) | \
40 (((widget) & IIO_ITTE_WIDGET_MASK) << IIO_ITTE_WIDGET_SHIFT)))
42 #define IIO_ITTE_DISABLE(nasid, bigwin) \
43 IIO_ITTE_PUT((nasid), HUB_PIO_MAP_TO_MEM, \
44 (bigwin), IIO_ITTE_INVALID_WIDGET, 0)
46 #define IIO_ITTE_GET(nasid, bigwin) REMOTE_HUB_ADDR((nasid), IIO_ITTE(bigwin))
49 * Macro which takes the widget number, and returns the
50 * IO PRB address of that widget.
51 * value _x is expected to be a widget number in the range
54 #define IIO_IOPRB(_x) (IIO_IOPRB_0 + ( ( (_x) < HUB_WIDGET_ID_MIN ? \
56 (_x) - (HUB_WIDGET_ID_MIN-1)) << 3) )
58 #if defined (CONFIG_SGI_IP27)
59 #include <asm/sn/sn0/hubio.h>
62 #else /* CONFIG_SGI_IO */
64 #include <asm/sn/sn0/addrs.h>
66 #define IO_SPACE_BASE IO_BASE
68 /* Because we only have PCI I/O ports. */
69 #define IO_SPACE_LIMIT 0xffffffff
71 /* No isa_* versions, the Origin doesn't have ISA / EISA bridges. */
73 #endif /* CONFIG_SGI_IO */
75 #endif /* _ASM_SN_IO_H */