| Kyösti Mälkki | 8e679f7 | 2022-11-14 10:05:06 +0200 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| 2 | |
| 3 | #include <device/smbus_host.h> |
| 4 | #include <device/pci_ops.h> |
| 5 | #include "i82801dx.h" |
| 6 | |
| 7 | void i82801dx_early_init(void) |
| 8 | { |
| 9 | const pci_devfn_t dev = PCI_DEV(0, 0x1f, 0); |
| 10 | |
| 11 | /* Enable ACPI I/O range decode and ACPI power management. */ |
| 12 | pci_write_config32(dev, PMBASE, DEFAULT_PMBASE | 1); |
| 13 | pci_write_config8(dev, ACPI_CNTL, ACPI_EN); |
| 14 | |
| 15 | pci_write_config32(dev, GPIO_BASE, GPIOBASE_ADDR | 1); |
| 16 | pci_write_config8(dev, GPIO_CNTL, 0x10); |
| 17 | |
| 18 | if (ENV_RAMINIT) |
| 19 | enable_smbus(); |
| 20 | } |
| 21 | |
| 22 | void i82801dx_lpc_setup(void) |
| 23 | { |
| 24 | const pci_devfn_t dev = PCI_DEV(0, 0x1f, 0); |
| 25 | |
| 26 | /* Decode 0x3F8-0x3FF (COM1) for COMA port, 0x2F8-0x2FF (COM2) for COMB. |
| 27 | * LPT decode defaults to 0x378-0x37F and 0x778-0x77F. |
| 28 | * Floppy decode defaults to 0x3F0-0x3F5, 0x3F7. |
| 29 | * We also need to set the value for LPC I/F Enables Register. |
| 30 | */ |
| 31 | pci_write_config8(dev, COM_DEC, 0x10); |
| 32 | pci_write_config16(dev, LPC_EN, 0x300F); |
| 33 | } |