| /* |
| * Copyright (C) 2016, Bin Meng <bmeng.cn@gmail.com> |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| */ |
| |
| #include <common.h> |
| #include <dm.h> |
| #include <errno.h> |
| #include <pci.h> |
| #include <smsc_sio1007.h> |
| #include <asm/ibmpc.h> |
| #include <asm/pci.h> |
| #include <asm/arch/pch.h> |
| |
| #define SIO1007_RUNTIME_IOPORT 0x180 |
| |
| int board_early_init_f(void) |
| { |
| struct udevice *pch; |
| int ret; |
| |
| ret = uclass_first_device(UCLASS_PCH, &pch); |
| if (ret) |
| return ret; |
| if (!pch) |
| return -ENODEV; |
| |
| /* Initialize LPC interface to turn on superio chipset decode range */ |
| dm_pci_write_config16(pch, LPC_IO_DEC, COMA_DEC_RANGE | COMB_DEC_RANGE); |
| dm_pci_write_config16(pch, LPC_EN, KBC_LPC_EN | COMA_LPC_EN); |
| dm_pci_write_config32(pch, LPC_GEN1_DEC, GEN_DEC_RANGE_256B | |
| (SIO1007_IOPORT3 & 0xff00) | GEN_DEC_RANGE_EN); |
| dm_pci_write_config32(pch, LPC_GEN2_DEC, GEN_DEC_RANGE_16B | |
| SIO1007_RUNTIME_IOPORT | GEN_DEC_RANGE_EN); |
| |
| /* Enable legacy serial port at 0x3f8 */ |
| sio1007_enable_serial(SIO1007_IOPORT3, 0, UART0_BASE, UART0_IRQ); |
| |
| /* Enable SIO1007 runtime I/O port at 0x180 */ |
| sio1007_enable_runtime(SIO1007_IOPORT3, SIO1007_RUNTIME_IOPORT); |
| |
| /* |
| * On Cougar Canyon 2 board, the RS232 transiver connected to serial |
| * port 0 (0x3f8) is controlled by a GPIO pin (GPIO10) on the SIO1007. |
| * Set the pin value to 1 to enable the RS232 transiver. |
| */ |
| sio1007_gpio_config(SIO1007_IOPORT3, 0, GPIO_DIR_OUTPUT, |
| GPIO_POL_NO_INVERT, GPIO_TYPE_PUSH_PULL); |
| sio1007_gpio_set_value(SIO1007_RUNTIME_IOPORT, 0, 1); |
| |
| return 0; |
| } |
| |
| void setup_pch_gpios(u16 gpiobase, const struct pch_gpio_map *gpio) |
| { |
| return; |
| } |