2 * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
4 * SPDX-License-Identifier: GPL-2.0+
9 #include <asm/arch/device.h>
10 #include <asm/arch/msg_port.h>
12 void msg_port_setup(int op, int port, int reg)
14 pci_write_config_dword(QUARK_HOST_BRIDGE, MSG_CTRL_REG,
15 (((op) << 24) | ((port) << 16) |
16 (((reg) << 8) & 0xff00) | MSG_BYTE_ENABLE));
19 u32 msg_port_read(u8 port, u32 reg)
23 pci_write_config_dword(QUARK_HOST_BRIDGE, MSG_CTRL_EXT_REG,
25 msg_port_setup(MSG_OP_READ, port, reg);
26 pci_read_config_dword(QUARK_HOST_BRIDGE, MSG_DATA_REG, &value);
31 void msg_port_write(u8 port, u32 reg, u32 value)
33 pci_write_config_dword(QUARK_HOST_BRIDGE, MSG_DATA_REG, value);
34 pci_write_config_dword(QUARK_HOST_BRIDGE, MSG_CTRL_EXT_REG,
36 msg_port_setup(MSG_OP_WRITE, port, reg);
39 u32 msg_port_alt_read(u8 port, u32 reg)
43 pci_write_config_dword(QUARK_HOST_BRIDGE, MSG_CTRL_EXT_REG,
45 msg_port_setup(MSG_OP_ALT_READ, port, reg);
46 pci_read_config_dword(QUARK_HOST_BRIDGE, MSG_DATA_REG, &value);
51 void msg_port_alt_write(u8 port, u32 reg, u32 value)
53 pci_write_config_dword(QUARK_HOST_BRIDGE, MSG_DATA_REG, value);
54 pci_write_config_dword(QUARK_HOST_BRIDGE, MSG_CTRL_EXT_REG,
56 msg_port_setup(MSG_OP_ALT_WRITE, port, reg);
59 u32 msg_port_io_read(u8 port, u32 reg)
63 pci_write_config_dword(QUARK_HOST_BRIDGE, MSG_CTRL_EXT_REG,
65 msg_port_setup(MSG_OP_IO_READ, port, reg);
66 pci_read_config_dword(QUARK_HOST_BRIDGE, MSG_DATA_REG, &value);
71 void msg_port_io_write(u8 port, u32 reg, u32 value)
73 pci_write_config_dword(QUARK_HOST_BRIDGE, MSG_DATA_REG, value);
74 pci_write_config_dword(QUARK_HOST_BRIDGE, MSG_CTRL_EXT_REG,
76 msg_port_setup(MSG_OP_IO_WRITE, port, reg);