mainboard.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <device/pci_ops.h>
#include <southbridge/intel/i82371eb/i82371eb.h>
 
/**
 * Mainboard specific enables.
 *
 * @param chip_info Ignored
 */
static void mainboard_init(void *chip_info)
{
        const pci_devfn_t px43 = PCI_DEV(0, 4, 3);
        u32 reg;
        /*
         * Set up an 8-byte generic I/O decode block at device 9.
         * This will be for W83781D hardware monitor.
         * Port 0x290 mask 0x007
         *
         * This should enable access to W83781D over the ISA bus.
         */
        reg = pci_s_read_config32(px43, DEVRESB);
        reg |= (0x290 | (0xe7 << 16));
        pci_s_write_config32(px43, DEVRESB, reg);
}
 
struct chip_operations mainboard_ops = {
        .init = mainboard_init
};