// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Based on MPC8560 ADS and arch/ppc tqm85xx ports
 *
 * Maintained by Kumar Gala (see MAINTAINERS for contact information)
 *
 * Copyright 2008 Freescale Semiconductor Inc.
 *
 * Copyright (c) 2005-2006 DENX Software Engineering
 * Stefan Roese <sr@denx.de>
 *
 * Based on original work by
 *      Kumar Gala <kumar.gala@freescale.com>
 *      Copyright 2004 Freescale Semiconductor Inc.
 */

#include <linux/stddef.h>
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/kdev_t.h>
#include <linux/delay.h>
#include <linux/seq_file.h>
#include <linux/of.h>

#include <asm/time.h>
#include <asm/machdep.h>
#include <asm/pci-bridge.h>
#include <asm/mpic.h>
#include <mm/mmu_decl.h>
#include <asm/udbg.h>

#include <sysdev/fsl_soc.h>
#include <sysdev/fsl_pci.h>

#include "mpc85xx.h"

#ifdef CONFIG_CPM2
#include <asm/cpm2.h>
#endif /* CONFIG_CPM2 */

static void __init tqm85xx_pic_init(void)
{
        struct mpic *mpic = mpic_alloc(NULL, 0,
                        MPIC_BIG_ENDIAN,
                        0, 256, " OpenPIC  ");
        BUG_ON(mpic == NULL);
        mpic_init(mpic);

        mpc85xx_cpm2_pic_init();
}

/*
 * Setup the architecture
 */
static void __init tqm85xx_setup_arch(void)
{
        if (ppc_md.progress)
                ppc_md.progress("tqm85xx_setup_arch()", 0);

#ifdef CONFIG_CPM2
        cpm2_reset();
#endif

        fsl_pci_assign_primary();
}

static void tqm85xx_show_cpuinfo(struct seq_file *m)
{
        uint pvid, svid, phid1;

        pvid = mfspr(SPRN_PVR);
        svid = mfspr(SPRN_SVR);

        seq_printf(m, "Vendor\t\t: TQ Components\n");
        seq_printf(m, "PVR\t\t: 0x%x\n", pvid);
        seq_printf(m, "SVR\t\t: 0x%x\n", svid);

        /* Display cpu Pll setting */
        phid1 = mfspr(SPRN_HID1);
        seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f));
}

static void tqm85xx_ti1520_fixup(struct pci_dev *pdev)
{
        unsigned int val;

        /* Do not do the fixup on other platforms! */
        if (!machine_is(tqm85xx))
                return;

        dev_info(&pdev->dev, "Using TI 1520 fixup on TQM85xx\n");

        /*
         * Enable P2CCLK bit in system control register
         * to enable CLOCK output to power chip
         */
        pci_read_config_dword(pdev, 0x80, &val);
        pci_write_config_dword(pdev, 0x80, val | (1 << 27));

}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1520,
                tqm85xx_ti1520_fixup);

machine_arch_initcall(tqm85xx, mpc85xx_common_publish_devices);

static const char * const board[] __initconst = {
        "tqc,tqm8540",
        "tqc,tqm8541",
        "tqc,tqm8548",
        "tqc,tqm8555",
        "tqc,tqm8560",
        NULL
};

define_machine(tqm85xx) {
        .name                   = "TQM85xx",
        .compatibles            = board,
        .setup_arch             = tqm85xx_setup_arch,
        .init_IRQ               = tqm85xx_pic_init,
        .show_cpuinfo           = tqm85xx_show_cpuinfo,
        .get_irq                = mpic_get_irq,
        .progress               = udbg_progress,
};