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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* ppa8548 setup and early boot code.
*
* Copyright 2009 Prodrive B.V..
*
* By Stef van Os (see MAINTAINERS for contact information)
*
* Based on the SBC8548 support - Copyright 2007 Wind River Systems Inc.
* Based on the MPC8548CDS support - Copyright 2005 Freescale Inc.
*/
#include <linux/stddef.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/reboot.h>
#include <linux/seq_file.h>
#include <linux/of_fdt.h>
#include <linux/of_platform.h>
#include <asm/machdep.h>
#include <asm/udbg.h>
#include <asm/mpic.h>
#include <sysdev/fsl_soc.h>
static void __init ppa8548_pic_init(void)
{
struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN,
0, 256, " OpenPIC ");
BUG_ON(mpic == NULL);
mpic_init(mpic);
}
/*
* Setup the architecture
*/
static void __init ppa8548_setup_arch(void)
{
if (ppc_md.progress)
ppc_md.progress("ppa8548_setup_arch()", 0);
}
static void ppa8548_show_cpuinfo(struct seq_file *m)
{
uint32_t svid, phid1;
svid = mfspr(SPRN_SVR);
seq_printf(m, "Vendor\t\t: Prodrive B.V.\n");
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 const struct of_device_id of_bus_ids[] __initconst = {
{ .name = "soc", },
{ .type = "soc", },
{ .compatible = "simple-bus", },
{ .compatible = "gianfar", },
{ .compatible = "fsl,srio", },
{},
};
static int __init declare_of_platform_devices(void)
{
of_platform_bus_probe(NULL, of_bus_ids, NULL);
return 0;
}
machine_device_initcall(ppa8548, declare_of_platform_devices);
/*
* Called very early, device-tree isn't unflattened
*/
static int __init ppa8548_probe(void)
{
return of_machine_is_compatible("ppa8548");
}
define_machine(ppa8548) {
.name = "ppa8548",
.probe = ppa8548_probe,
.setup_arch = ppa8548_setup_arch,
.init_IRQ = ppa8548_pic_init,
.show_cpuinfo = ppa8548_show_cpuinfo,
.get_irq = mpic_get_irq,
.calibrate_decr = generic_calibrate_decr,
.progress = udbg_progress,
};
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