superio.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <device/device.h>
#include <device/pnp.h>
#include <superio/conf_mode.h>
#include <pc80/keyboard.h>
 
#include "w83627dhg.h"
 
static void w83627dhg_enable_UR2(struct device *dev)
{
        u8 reg8;
 
        pnp_enter_conf_mode(dev);
        reg8 = pnp_read_config(dev, 0x2c);
        reg8 |= (0x3);
        pnp_write_config(dev, 0x2c, reg8); // Set pins 78-85-> UART B
        pnp_exit_conf_mode(dev);
}
 
static void w83627dhg_init(struct device *dev)
{
 
        if (!dev->enabled)
                return;
 
        switch (dev->path.pnp.device) {
        case W83627DHG_SP2:
                w83627dhg_enable_UR2(dev);
                break;
        case W83627DHG_KBC:
                pc_keyboard_init(NO_AUX_DEVICE);
                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             = w83627dhg_init,
        .ops_pnp_mode     = &pnp_conf_mode_8787_aa,
};
 
static struct pnp_info pnp_dev_info[] = {
        { NULL, W83627DHG_FDC, PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, 0x07f8, },
        { NULL, W83627DHG_PP,  PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, 0x07f8, },
        { NULL, W83627DHG_SP1, PNP_IO0 | PNP_IRQ0, 0x07f8, },
        { NULL, W83627DHG_SP2, PNP_IO0 | PNP_IRQ0, 0x07f8, },
        { NULL, W83627DHG_KBC, PNP_IO0 | PNP_IO1 | PNP_IRQ0 | PNP_IRQ1,
                0x07ff, 0x07ff, },
        { NULL, W83627DHG_SPI, PNP_IO1, 0, 0x7f8, },
        { NULL, W83627DHG_GPIO6, },
        { NULL, W83627DHG_WDTO_PLED, },
        { NULL, W83627DHG_GPIO2, },
        { NULL, W83627DHG_GPIO3, },
        { NULL, W83627DHG_GPIO4, },
        { NULL, W83627DHG_GPIO5, },
        { NULL, W83627DHG_ACPI, PNP_IRQ0, },
        { NULL, W83627DHG_HWM, PNP_IO0 | PNP_IRQ0, 0x07fe, },
        { NULL, W83627DHG_PECI_SST, },
};
 
static void enable_dev(struct device *dev)
{
        pnp_enable_devices(dev, &ops, ARRAY_SIZE(pnp_dev_info), pnp_dev_info);
}
 
struct chip_operations superio_winbond_w83627dhg_ops = {
        CHIP_NAME("Winbond W83627DHG Super I/O")
        .enable_dev = enable_dev,
};