projects / thirdparty / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 83d290c5 | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| a2927e09 BM |
2 | /* |
| 3 | * Copyright (C) 2014, Bin Meng <bmeng.cn@gmail.com> | |
| a2927e09 BM |
4 | */ |
| 5 | ||
| 6 | #include <common.h> | |
| 7 | #include <asm/io.h> | |
| 8 | #include <asm/pnp_def.h> | |
| 9 | ||
| 10 | static void pnp_enter_conf_state(u16 dev) | |
| 11 | { | |
| 12 | u16 port = dev >> 8; | |
| 13 | ||
| 14 | outb(0x55, port); | |
| 15 | } | |
| 16 | ||
| 17 | static void pnp_exit_conf_state(u16 dev) | |
| 18 | { | |
| 19 | u16 port = dev >> 8; | |
| 20 | ||
| 21 | outb(0xaa, port); | |
| 22 | } | |
| 23 | ||
| c78dfb4f | 24 | void lpc47m_enable_serial(uint dev, uint iobase, uint irq) |
| a2927e09 BM |
25 | { |
| 26 | pnp_enter_conf_state(dev); | |
| 27 | pnp_set_logical_device(dev); | |
| 28 | pnp_set_enable(dev, 0); | |
| 29 | pnp_set_iobase(dev, PNP_IDX_IO0, iobase); | |
| 19268834 | 30 | pnp_set_irq(dev, PNP_IDX_IRQ0, irq); |
| a2927e09 BM |
31 | pnp_set_enable(dev, 1); |
| 32 | pnp_exit_conf_state(dev); | |
| 33 | } | |
| c78dfb4f BM |
34 | |
| 35 | void lpc47m_enable_kbc(uint dev, uint irq0, uint irq1) | |
| 36 | { | |
| 37 | pnp_enter_conf_state(dev); | |
| 38 | pnp_set_logical_device(dev); | |
| 39 | pnp_set_enable(dev, 0); | |
| 40 | pnp_set_irq(dev, PNP_IDX_IRQ0, irq0); | |
| 41 | pnp_set_irq(dev, PNP_IDX_IRQ1, irq1); | |
| 42 | pnp_set_enable(dev, 1); | |
| 43 | pnp_exit_conf_state(dev); | |
| 44 | } |