mainboard.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <cpu/x86/msr.h>
#include <cpu/amd/msr.h>
#include <device/device.h>
#include <southbridge/amd/common/amd_pci_util.h>
 
static const u8 mainboard_picr_data[] = {
        0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x0A, 0xF1, 0x00, 0x00, 0x1F, 0x1F,
        0x1F, 0x1F, 0x09, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1F, 0x1F, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1F, 0x1F, 0x1F, 0x1F,
};
static const u8 mainboard_intr_data[84] = {
        0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x00, 0x00, 0x00, 0x00, 0x1F, 0x1F,
        0x1F, 0x1F, 0x09, 0x1F, 0x1F, 0x10, 0x1F, 0x10, 0x1F, 0x10, 0x1F, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x05, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x12, 0x11, 0x12, 0x11, 0x12, 0x11, 0x12, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11, 0x13, 0x00, 0x00, 0x00, 0x00,
        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x11, 0x12, 0x13,
};
 
/* PIRQ Setup */
static void pirq_setup(void)
{
        intr_data_ptr = mainboard_intr_data;
        picr_data_ptr = mainboard_picr_data;
}
 
/* dedicated "enable" function (taken from thatcher) */
static void mainboard_enable(struct device *dev)
{
        msr_t msr;
 
        pirq_setup();
 
        msr = rdmsr(LS_CFG_MSR);
        /* Enable streaming store functionality. */
        msr.lo &= ~(1 << 28);
        wrmsr(LS_CFG_MSR, msr);
 
        msr = rdmsr(DC_CFG_MSR);
        /* Enable speculative TLB preloads. */
        msr.lo &= ~(1 << 4);
        /* Enable the DC hardware prefetcher. */
        msr.lo &= ~(1 << 13);
        wrmsr(DC_CFG_MSR, msr);
 
        msr = rdmsr(BU_CFG_MSR);
        /* Disable the L2 way lock. */
        msr.lo &= ~(1 << 23);
        wrmsr(BU_CFG_MSR, msr);
}
 
struct chip_operations mainboard_ops = {
        .enable_dev = mainboard_enable,
};