| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <device/pci_ops.h> |
| #include <device/pci_def.h> |
| #include <device/smbus_host.h> |
| #include "i82801jx.h" |
| |
| uintptr_t smbus_base(void) |
| { |
| return SMBUS_IO_BASE; |
| } |
| |
| int smbus_enable_iobar(uintptr_t base) |
| { |
| /* Set the SMBus device statically. */ |
| pci_devfn_t dev = PCI_DEV(0x0, 0x1f, 0x3); |
| |
| /* Set SMBus I/O base. */ |
| pci_write_config32(dev, SMB_BASE, |
| base | PCI_BASE_ADDRESS_SPACE_IO); |
| |
| /* Set SMBus enable. */ |
| pci_write_config8(dev, HOSTC, HST_EN); |
| |
| /* Set SMBus I/O space enable. */ |
| pci_write_config16(dev, PCI_COMMAND, PCI_COMMAND_IO); |
| |
| return 0; |
| } |
| |
| int smbus_read_byte(unsigned int device, unsigned int address) |
| { |
| return do_smbus_read_byte(SMBUS_IO_BASE, device, address); |
| } |
| |
| int i2c_eeprom_read(unsigned int device, unsigned int offset, u32 bytes, u8 *buf) |
| { |
| return do_i2c_eeprom_read(SMBUS_IO_BASE, device, offset, bytes, buf); |
| } |
| |
| int smbus_block_read(unsigned int device, unsigned int cmd, u8 bytes, u8 *buf) |
| { |
| return do_smbus_block_read(SMBUS_IO_BASE, device, cmd, bytes, buf); |
| } |
| |
| int smbus_block_write(unsigned int device, unsigned int cmd, u8 bytes, |
| const u8 *buf) |
| { |
| return do_smbus_block_write(SMBUS_IO_BASE, device, cmd, bytes, buf); |
| } |