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Diffstat (limited to 'board/MAI/AmigaOneG3SE/macros.h')
| -rw-r--r-- | board/MAI/AmigaOneG3SE/macros.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/board/MAI/AmigaOneG3SE/macros.h b/board/MAI/AmigaOneG3SE/macros.h new file mode 100644 index 0000000..0fbe39b --- /dev/null +++ b/board/MAI/AmigaOneG3SE/macros.h @@ -0,0 +1,84 @@ + +#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 |