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/* SPDX-License-Identifier: GPL-2.0-only */
#include <arch/io.h>
#include <bootstate.h>
#include <cf9_reset.h>
#include <device/pci_def.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include <gpio.h>
#include <hwilib.h>
#include <intelblocks/lpc_lib.h>
#include <intelblocks/pcr.h>
#include <soc/pcr_ids.h>
#include <baseboard/variants.h>
#include <types.h>
#define TX_DWORD3 0xa8c
void variant_mainboard_final(void)
{
struct device *dev = NULL;
/* PIR6 register mapping for PCIe root ports
* INTA#->PIRQD#, INTB#->PIRQA#, INTC#->PIRQB#, INTD#-> PIRQC#
*/
pcr_write16(PID_ITSS, 0x314c, 0x2103);
/* Enable CLKRUN_EN for power gating LPC */
lpc_enable_pci_clk_cntl();
/*
* Enable LPC PCE (Power Control Enable) by setting IOSF-SB port 0xD2
* offset 0x341D bit3 and bit0.
* Enable LPC CCE (Clock Control Enable) by setting IOSF-SB port 0xD2
* offset 0x341C bit [3:0].
*/
pcr_or32(PID_LPC, PCR_LPC_PRC, (PCR_LPC_CCE_EN | PCR_LPC_PCE_EN));
/* Set Master Enable for on-board PCI device. */
dev = dev_find_device(PCI_VENDOR_ID_SIEMENS, 0x403e, 0);
if (dev) {
pci_or_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER);
/* Disable clock outputs 0 and 2-4 (CLKOUT) for upstream
* XIO2001 PCIe to PCI Bridge.
*/
struct device *parent = dev->bus->dev;
if (parent && parent->device == PCI_DEVICE_ID_TI_XIO2001)
pci_write_config8(parent, 0xd8, 0x1d);
}
/* Disable clock outputs 2-5 (CLKOUT) for another XIO2001 PCIe to PCI
* Bridge on this mainboard.
*/
dev = dev_find_device(PCI_VENDOR_ID_SIEMENS, 0x403f, 0);
if (dev) {
struct device *parent = dev->bus->dev;
if (parent && parent->device == PCI_DEVICE_ID_TI_XIO2001)
pci_write_config8(parent, 0xd8, 0x3c);
}
/* Set Full Reset Bit in Reset Control Register (I/O port CF9h).
* When Bit 3 is set to 1 and then the reset button is pressed the PCH
* will drive SLP_S3 active (low). SLP_S3 is then used on the mainboard
* to generate the right reset timing.
*/
outb(FULL_RST, RST_CNT);
}
static void finalize_boot(void *unused)
{
/* Set coreboot ready LED. */
gpio_output(CNV_RGI_DT, 1);
}
BOOT_STATE_INIT_ENTRY(BS_PAYLOAD_BOOT, BS_ON_ENTRY, finalize_boot, NULL);
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