1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com>
4 */
5
6 #include <asm/io.h>
7 #include <asm/pnp_def.h>
8
pnp_enter_conf_state(u16 dev)9 static void pnp_enter_conf_state(u16 dev)
10 {
11 u16 port = dev >> 8;
12
13 outb(0x55, port);
14 }
15
pnp_exit_conf_state(u16 dev)16 static void pnp_exit_conf_state(u16 dev)
17 {
18 u16 port = dev >> 8;
19
20 outb(0xaa, port);
21 }
22
lpc47m_enable_serial(uint dev,uint iobase,uint irq)23 void lpc47m_enable_serial(uint dev, uint iobase, uint irq)
24 {
25 pnp_enter_conf_state(dev);
26 pnp_set_logical_device(dev);
27 pnp_set_enable(dev, 0);
28 pnp_set_iobase(dev, PNP_IDX_IO0, iobase);
29 pnp_set_irq(dev, PNP_IDX_IRQ0, irq);
30 pnp_set_enable(dev, 1);
31 pnp_exit_conf_state(dev);
32 }
33
lpc47m_enable_kbc(uint dev,uint irq0,uint irq1)34 void lpc47m_enable_kbc(uint dev, uint irq0, uint irq1)
35 {
36 pnp_enter_conf_state(dev);
37 pnp_set_logical_device(dev);
38 pnp_set_enable(dev, 0);
39 pnp_set_irq(dev, PNP_IDX_IRQ0, irq0);
40 pnp_set_irq(dev, PNP_IDX_IRQ1, irq1);
41 pnp_set_enable(dev, 1);
42 pnp_exit_conf_state(dev);
43 }
44