platforms/83xx/mpc834x_itx.c

0001 // SPDX-License-Identifier: GPL-2.0-or-later
0002 /*
0003  * arch/powerpc/platforms/83xx/mpc834x_itx.c
0004  *
0005  * MPC834x ITX board specific routines
0006  *
0007  * Maintainer: Kumar Gala <galak@kernel.crashing.org>
0008  */
0009
0010 #include <linux/stddef.h>
0011 #include <linux/kernel.h>
0012 #include <linux/init.h>
0013 #include <linux/errno.h>
0014 #include <linux/reboot.h>
0015 #include <linux/pci.h>
0016 #include <linux/kdev_t.h>
0017 #include <linux/major.h>
0018 #include <linux/console.h>
0019 #include <linux/delay.h>
0020 #include <linux/seq_file.h>
0021 #include <linux/root_dev.h>
0022 #include <linux/of_platform.h>
0023
0024 #include <linux/atomic.h>
0025 #include <asm/time.h>
0026 #include <asm/io.h>
0027 #include <asm/machdep.h>
0028 #include <asm/ipic.h>
0029 #include <asm/irq.h>
0030 #include <asm/udbg.h>
0031 #include <sysdev/fsl_soc.h>
0032 #include <sysdev/fsl_pci.h>
0033
0034 #include "mpc83xx.h"
0035
0036 static const struct of_device_id mpc834x_itx_ids[] __initconst = {
0037     { .compatible = "fsl,pq2pro-localbus", },
0038     {},
0039 };
0040
0041 static int __init mpc834x_itx_declare_of_platform_devices(void)
0042 {
0043     mpc83xx_declare_of_platform_devices();
0044     return of_platform_bus_probe(NULL, mpc834x_itx_ids, NULL);
0045 }
0046 machine_device_initcall(mpc834x_itx, mpc834x_itx_declare_of_platform_devices);
0047
0048 /* ************************************************************************
0049  *
0050  * Setup the architecture
0051  *
0052  */
0053 static void __init mpc834x_itx_setup_arch(void)
0054 {
0055     mpc83xx_setup_arch();
0056
0057     mpc834x_usb_cfg();
0058 }
0059
0060 /*
0061  * Called very early, MMU is off, device-tree isn't unflattened
0062  */
0063 static int __init mpc834x_itx_probe(void)
0064 {
0065     return of_machine_is_compatible("MPC834xMITX");
0066 }
0067
0068 define_machine(mpc834x_itx) {
0069     .name           = "MPC834x ITX",
0070     .probe          = mpc834x_itx_probe,
0071     .setup_arch     = mpc834x_itx_setup_arch,
0072     .discover_phbs      = mpc83xx_setup_pci,
0073     .init_IRQ       = mpc83xx_ipic_init_IRQ,
0074     .get_irq        = ipic_get_irq,
0075     .restart        = mpc83xx_restart,
0076     .time_init      = mpc83xx_time_init,
0077     .calibrate_decr     = generic_calibrate_decr,
0078     .progress       = udbg_progress,
0079 };