linux-arkmicro/u-boot/board/mpc8308_p1m/mpc8308_p1m.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2010 Freescale Semiconductor, Inc.
 * Copyright (C) 2010 Ilya Yanok, Emcraft Systems, yanok@emcraft.com
 */

#include <common.h>
#include <i2c.h>
#include <linux/libfdt.h>
#include <fdt_support.h>
#include <pci.h>
#include <mpc83xx.h>
#include <netdev.h>
#include <asm/io.h>
#include <asm/fsl_serdes.h>
#include <asm/fsl_mpc83xx_serdes.h>

int checkboard(void)
{
	printf("Board: MPC8308 P1M\n");

	return 0;
}

static struct pci_region pcie_regions_0[] = {
	{
		.bus_start = CONFIG_SYS_PCIE1_MEM_BASE,
		.phys_start = CONFIG_SYS_PCIE1_MEM_PHYS,
		.size = CONFIG_SYS_PCIE1_MEM_SIZE,
		.flags = PCI_REGION_MEM,
	},
	{
		.bus_start = CONFIG_SYS_PCIE1_IO_BASE,
		.phys_start = CONFIG_SYS_PCIE1_IO_PHYS,
		.size = CONFIG_SYS_PCIE1_IO_SIZE,
		.flags = PCI_REGION_IO,
	},
};

void pci_init_board(void)
{
	immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
	sysconf83xx_t *sysconf = &immr->sysconf;
	law83xx_t *pcie_law = sysconf->pcielaw;
	struct pci_region *pcie_reg[] = { pcie_regions_0 };

	fsl_setup_serdes(CONFIG_FSL_SERDES1, FSL_SERDES_PROTO_PEX,
					FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V);

	/* Deassert the resets in the control register */
	out_be32(&sysconf->pecr1, 0xE0008000);
	udelay(2000);

	/* Configure PCI Express Local Access Windows */
	out_be32(&pcie_law[0].bar, CONFIG_SYS_PCIE1_BASE & LAWBAR_BAR);
	out_be32(&pcie_law[0].ar, LBLAWAR_EN | LBLAWAR_512MB);

	mpc83xx_pcie_init(1, pcie_reg);
}

#if defined(CONFIG_OF_BOARD_SETUP)
int ft_board_setup(void *blob, bd_t *bd)
{
	ft_cpu_setup(blob, bd);
	fsl_fdt_fixup_dr_usb(blob, bd);

	return 0;
}
#endif

int board_eth_init(bd_t *bis)
{
	int rv, num_if = 0;

	/* Initialize TSECs first */
	rv = cpu_eth_init(bis);
	if (rv >= 0)
		num_if += rv;
	else
		printf("ERROR: failed to initialize TSECs.\n");

	rv = pci_eth_init(bis);
	if (rv >= 0)
		num_if += rv;
	else
		printf("ERROR: failed to initialize PCI Ethernet.\n");

	return num_if;
}