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// 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_platform.h>
#include <asm/time.h>
#include <asm/machdep.h>
#include <asm/pci-bridge.h>
#include <asm/mpic.h>
#include <asm/prom.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
};
/*
* Called very early, device-tree isn't unflattened
*/
static int __init tqm85xx_probe(void)
{
return of_device_compatible_match(of_root, board);
}
define_machine(tqm85xx) {
.name = "TQM85xx",
.probe = tqm85xx_probe,
.setup_arch = tqm85xx_setup_arch,
.init_IRQ = tqm85xx_pic_init,
.show_cpuinfo = tqm85xx_show_cpuinfo,
.get_irq = mpic_get_irq,
.calibrate_decr = generic_calibrate_decr,
.progress = udbg_progress,
};
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