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#ifndef _MACROS_H
#define _MACROS_H
/*
** Load a long integer into a register
*/
.macro liw reg, value
lis \reg, \value@h
ori \reg, \reg, \value@l
.endm
/*
** Generate config_addr request
** This macro expects the values in registers:
** r3 - bus
** r4 - devfn
** r5 - offset
*/
.macro config_addr
rlwinm r9, r5, 24, 0, 6
rlwinm r8, r4, 16, 0, 31
rlwinm r7, r3, 8, 0, 31
or r9, r8, r9
or r9, r7, r9
ori r9, r9, 0x80
liw r10, 0xfec00cf8
stw r9, 0(r10)
eieio
sync
.endm
/*
** Generate config_data address
*/
.macro config_data mask
andi. r9, r5, \mask
addi r9, r9, 0xcfc
oris r9, r9, 0xfee0
.endm
/*
** Write a byte value to an output port
*/
.macro outb port, value
lis r2, 0xfe00
li r0, \value
stb r0, \port(r2)
.endm
/*
** Write a register byte value to an output port
*/
.macro outbr port, value
lis r2, 0xfe00
stb \value, \port(r2)
.endm
/*
** Read a byte value from a port into a specified register
*/
.macro inb reg, port
lis r2, 0xfe00
lbz \reg, \port(r2)
.endm
/*
** Write a byte to the SuperIO config area
*/
.macro siowb offset, value
li r3, 0
li r4, (7<<3)
li r5, \offset
li r6, \value
bl pci_write_cfg_byte
.endm
#endif
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