diff options
Diffstat (limited to 'include/asm-mips/cobalt/cobalt.h')
| -rw-r--r-- | include/asm-mips/cobalt/cobalt.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/include/asm-mips/cobalt/cobalt.h b/include/asm-mips/cobalt/cobalt.h new file mode 100644 index 00000000000..ca1fbc0579f --- /dev/null +++ b/include/asm-mips/cobalt/cobalt.h @@ -0,0 +1,90 @@ +/* + * Lowlevel hardware stuff for the MIPS based Cobalt microservers. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 1997 Cobalt Microserver + * Copyright (C) 1997, 2003 Ralf Baechle + * Copyright (C) 2001, 2002, 2003 Liam Davies (ldavies@agile.tv) + */ +#ifndef __ASM_COBALT_H +#define __ASM_COBALT_H + +/* + * i8259 legacy interrupts used on Cobalt: + * + * 8 - RTC + * 9 - PCI + * 14 - IDE0 + * 15 - IDE1 + * + * CPU IRQs are 16 ... 23 + */ +#define COBALT_TIMER_IRQ 18 +#define COBALT_SCC_IRQ 19 /* pre-production has 85C30 */ +#define COBALT_RAQ_SCSI_IRQ 19 +#define COBALT_ETH0_IRQ 19 +#define COBALT_ETH1_IRQ 20 +#define COBALT_SERIAL_IRQ 21 +#define COBALT_SCSI_IRQ 21 +#define COBALT_VIA_IRQ 22 /* Chained to VIA ISA bridge */ +#define COBALT_QUBE_SLOT_IRQ 23 + +/* + * PCI configuration space manifest constants. These are wired into + * the board layout according to the PCI spec to enable the software + * to probe the hardware configuration space in a well defined manner. + * + * The PCI_DEVSHFT() macro transforms these values into numbers + * suitable for passing as the dev parameter to the various + * pcibios_read/write_config routines. + */ +#define COBALT_PCICONF_CPU 0x06 +#define COBALT_PCICONF_ETH0 0x07 +#define COBALT_PCICONF_RAQSCSI 0x08 +#define COBALT_PCICONF_VIA 0x09 +#define COBALT_PCICONF_PCISLOT 0x0A +#define COBALT_PCICONF_ETH1 0x0C + + +/* + * The Cobalt board id information. The boards have an ID number wired + * into the VIA that is available in the high nibble of register 94. + * This register is available in the VIA configuration space through the + * interface routines qube_pcibios_read/write_config. See cobalt/pci.c + */ +#define VIA_COBALT_BRD_ID_REG 0x94 +#define VIA_COBALT_BRD_REG_to_ID(reg) ((unsigned char) (reg) >> 4) +#define COBALT_BRD_ID_QUBE1 0x3 +#define COBALT_BRD_ID_RAQ1 0x4 +#define COBALT_BRD_ID_QUBE2 0x5 +#define COBALT_BRD_ID_RAQ2 0x6 + +/* + * Galileo chipset access macros for the Cobalt. The base address for + * the GT64111 chip is 0x14000000 + * + * Most of this really should go into a separate GT64111 header file. + */ +#define GT64111_IO_BASE 0x10000000UL +#define GT64111_BASE 0x14000000UL +#define GALILEO_REG(ofs) (KSEG0 + GT64111_BASE + (unsigned long)(ofs)) + +#define GALILEO_INL(port) (*(volatile unsigned int *) GALILEO_REG(port)) +#define GALILEO_OUTL(val, port) \ +do { \ + *(volatile unsigned int *) GALILEO_REG(port) = (port); \ +} while (0) + +#define GALILEO_T0EXP 0x0100 +#define GALILEO_ENTC0 0x01 +#define GALILEO_SELTC0 0x02 + +#define PCI_CFG_SET(devfn,where) \ + GALILEO_OUTL((0x80000000 | (PCI_SLOT (devfn) << 11) | \ + (PCI_FUNC (devfn) << 8) | (where)), GT_PCI0_CFGADDR_OFS) + + +#endif /* __ASM_COBALT_H */ |