diff options
Diffstat (limited to 'src/superio/nuvoton/nct6687d/superio.c')
| -rw-r--r-- | src/superio/nuvoton/nct6687d/superio.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/src/superio/nuvoton/nct6687d/superio.c b/src/superio/nuvoton/nct6687d/superio.c new file mode 100644 index 0000000000..4795659118 --- /dev/null +++ b/src/superio/nuvoton/nct6687d/superio.c @@ -0,0 +1,92 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include <console/console.h> +#include <device/device.h> +#include <device/pnp.h> +#include <pc80/keyboard.h> +#include <option.h> +#include <superio/conf_mode.h> + +#include "nct6687d.h" + +#define MAINBOARD_POWER_OFF 0 +#define MAINBOARD_POWER_ON 1 +#define MAINBOARD_POWER_KEEP 2 + +/* 0xeb register definitions */ +#define NCT6687D_ACPI_POWER_LOSS_CONTROL_MASK 0x60 +#define NCT6687D_ACPI_POWER_LOSS_CONTROL_SHIFT 5 +#define NCT6687D_ACPI_POWER_ALWAYS_OFF (0 << NCT6687D_ACPI_POWER_LOSS_CONTROL_SHIFT) +#define NCT6687D_ACPI_POWER_ALWAYS_ON (1 << NCT6687D_ACPI_POWER_LOSS_CONTROL_SHIFT) +#define NCT6687D_ACPI_POWER_PREV_STATE (2 << NCT6687D_ACPI_POWER_LOSS_CONTROL_SHIFT) +#define NCT6687D_ACPI_POWER_USER_DEFINED (3 << NCT6687D_ACPI_POWER_LOSS_CONTROL_SHIFT) + +static void nct6687d_init(struct device *dev) +{ + if (!dev->enabled) + return; + + switch (dev->path.pnp.device) { + /* TODO: Might potentially need code for EC, GPIOs, etc. */ + case NCT6687D_KBC: + pc_keyboard_init(PROBE_AUX_DEVICE); + break; + case NCT6687D_ACPI: + uint8_t byte; + uint8_t power_status; + /* Set power state after power fail */ + power_status = get_uint_option("power_on_after_fail", + CONFIG_MAINBOARD_POWER_FAILURE_STATE); + pnp_enter_conf_mode(dev); + pnp_set_logical_device(dev); + byte = pnp_read_config(dev, 0xeb); + byte &= ~NCT6687D_ACPI_POWER_LOSS_CONTROL_MASK; + if (power_status == MAINBOARD_POWER_ON) + byte |= NCT6687D_ACPI_POWER_ALWAYS_ON; + else if (power_status == MAINBOARD_POWER_KEEP) + byte |= NCT6687D_ACPI_POWER_PREV_STATE; + pnp_write_config(dev, 0xeb, byte); + pnp_exit_conf_mode(dev); + printk(BIOS_INFO, "set power %s after power fail\n", + power_status ? "on" : "off"); + break; + } +} + +static struct device_operations ops = { + .read_resources = pnp_read_resources, + .set_resources = pnp_set_resources, + .enable_resources = pnp_enable_resources, + .enable = pnp_alt_enable, + .init = nct6687d_init, + .ops_pnp_mode = &pnp_conf_mode_8787_aa, +}; + +static struct pnp_info pnp_dev_info[] = { + { NULL, NCT6687D_PP, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0 | PNP_MSC0, 0x0FF8,}, + { NULL, NCT6687D_SP1, PNP_IO0 | PNP_IRQ0 | PNP_MSC0, 0x0FF8, }, + { NULL, NCT6687D_SP2, PNP_IO0 | PNP_IRQ0 | PNP_MSC0 | PNP_MSC1, 0x0FF8, }, + { NULL, NCT6687D_KBC, PNP_IO0 | PNP_IO1 | PNP_IRQ0 | PNP_IRQ1 | PNP_MSC0, + 0x0FFF, 0x0FFF, }, + { NULL, NCT6687D_CIR, PNP_IO0 | PNP_IRQ0 | PNP_MSC0 | PNP_MSC1 | PNP_MSC2 | PNP_MSC3, + 0x0FF8, }, + { NULL, NCT6687D_GPIO_0_7, PNP_IO0 | PNP_IRQ0, 0x0FF0,}, + { NULL, NCT6687D_P80_UART}, + { NULL, NCT6687D_GPIO_8_9_AF}, + { NULL, NCT6687D_ACPI, PNP_IO0 | PNP_IRQ0, 0x0FF8,}, + { NULL, NCT6687D_EC, PNP_IO0 | PNP_IRQ0, 0x0FF8,}, + { NULL, NCT6687D_RTC}, + { NULL, NCT6687D_SLEEP_PWR}, + { NULL, NCT6687D_TACH_PWM}, + { NULL, NCT6687D_FREG}, +}; + +static void enable_dev(struct device *dev) +{ + pnp_enable_devices(dev, &ops, ARRAY_SIZE(pnp_dev_info), pnp_dev_info); +} + +struct chip_operations superio_nuvoton_nct6687d_ops = { + CHIP_NAME("NUVOTON NCT6687D Super I/O") + .enable_dev = enable_dev, +}; |