2 * Lowlevel hardware stuff for the MIPS based Cobalt microservers.
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
8 * Copyright (C) 1997 Cobalt Microserver
9 * Copyright (C) 1997, 2003 Ralf Baechle
10 * Copyright (C) 2001, 2002, 2003 Liam Davies (ldavies@agile.tv)
12 #ifndef __ASM_COBALT_H
13 #define __ASM_COBALT_H
16 * i8259 legacy interrupts used on Cobalt:
23 #define COBALT_QUBE_SLOT_IRQ 9
26 * CPU IRQs are 16 ... 23
28 #define COBALT_CPU_IRQ 16
30 #define COBALT_GALILEO_IRQ (COBALT_CPU_IRQ + 2)
31 #define COBALT_SCC_IRQ (COBALT_CPU_IRQ + 3) /* pre-production has 85C30 */
32 #define COBALT_RAQ_SCSI_IRQ (COBALT_CPU_IRQ + 3)
33 #define COBALT_ETH0_IRQ (COBALT_CPU_IRQ + 3)
34 #define COBALT_QUBE1_ETH0_IRQ (COBALT_CPU_IRQ + 4)
35 #define COBALT_ETH1_IRQ (COBALT_CPU_IRQ + 4)
36 #define COBALT_SERIAL_IRQ (COBALT_CPU_IRQ + 5)
37 #define COBALT_SCSI_IRQ (COBALT_CPU_IRQ + 5)
38 #define COBALT_VIA_IRQ (COBALT_CPU_IRQ + 6) /* Chained to VIA ISA bridge */
41 * PCI configuration space manifest constants. These are wired into
42 * the board layout according to the PCI spec to enable the software
43 * to probe the hardware configuration space in a well defined manner.
45 * The PCI_DEVSHFT() macro transforms these values into numbers
46 * suitable for passing as the dev parameter to the various
47 * pcibios_read/write_config routines.
49 #define COBALT_PCICONF_CPU 0x06
50 #define COBALT_PCICONF_ETH0 0x07
51 #define COBALT_PCICONF_RAQSCSI 0x08
52 #define COBALT_PCICONF_VIA 0x09
53 #define COBALT_PCICONF_PCISLOT 0x0A
54 #define COBALT_PCICONF_ETH1 0x0C
58 * The Cobalt board id information. The boards have an ID number wired
59 * into the VIA that is available in the high nibble of register 94.
60 * This register is available in the VIA configuration space through the
61 * interface routines qube_pcibios_read/write_config. See cobalt/pci.c
63 #define VIA_COBALT_BRD_ID_REG 0x94
64 #define VIA_COBALT_BRD_REG_to_ID(reg) ((unsigned char) (reg) >> 4)
65 #define COBALT_BRD_ID_QUBE1 0x3
66 #define COBALT_BRD_ID_RAQ1 0x4
67 #define COBALT_BRD_ID_QUBE2 0x5
68 #define COBALT_BRD_ID_RAQ2 0x6
71 * Galileo chipset access macros for the Cobalt. The base address for
72 * the GT64111 chip is 0x14000000
74 * Most of this really should go into a separate GT64111 header file.
76 #define GT64111_IO_BASE 0x10000000UL
77 #define GT64111_IO_END 0x11ffffffUL
78 #define GT64111_MEM_BASE 0x12000000UL
79 #define GT64111_MEM_END 0x13ffffffUL
80 #define GT64111_BASE 0x14000000UL
81 #define GALILEO_REG(ofs) CKSEG1ADDR(GT64111_BASE + (unsigned long)(ofs))
83 #define GALILEO_INL(port) (*(volatile unsigned int *) GALILEO_REG(port))
84 #define GALILEO_OUTL(val, port) \
86 *(volatile unsigned int *) GALILEO_REG(port) = (val); \
89 #define GALILEO_INTR_T0EXP (1 << 8)
90 #define GALILEO_INTR_RETRY_CTR (1 << 20)
92 #define GALILEO_ENTC0 0x01
93 #define GALILEO_SELTC0 0x02
95 #define PCI_CFG_SET(devfn,where) \
96 GALILEO_OUTL((0x80000000 | (PCI_SLOT (devfn) << 11) | \
97 (PCI_FUNC (devfn) << 8) | (where)), GT_PCI0_CFGADDR_OFS)
99 #define COBALT_LED_PORT (*(volatile unsigned char *) CKSEG1ADDR(0x1c000000))
100 # define COBALT_LED_BAR_LEFT (1 << 0) /* Qube */
101 # define COBALT_LED_BAR_RIGHT (1 << 1) /* Qube */
102 # define COBALT_LED_WEB (1 << 2) /* RaQ */
103 # define COBALT_LED_POWER_OFF (1 << 3) /* RaQ */
104 # define COBALT_LED_RESET 0x0f
106 #define COBALT_KEY_PORT ((~*(volatile unsigned int *) CKSEG1ADDR(0x1d000000) >> 24) & COBALT_KEY_MASK)
107 # define COBALT_KEY_CLEAR (1 << 1)
108 # define COBALT_KEY_LEFT (1 << 2)
109 # define COBALT_KEY_UP (1 << 3)
110 # define COBALT_KEY_DOWN (1 << 4)
111 # define COBALT_KEY_RIGHT (1 << 5)
112 # define COBALT_KEY_ENTER (1 << 6)
113 # define COBALT_KEY_SELECT (1 << 7)
114 # define COBALT_KEY_MASK 0xfe
116 #define COBALT_UART ((volatile unsigned char *) CKSEG1ADDR(0x1c800000))
118 #endif /* __ASM_COBALT_H */