platforms/512x/mpc5121_ads.c

0001 // SPDX-License-Identifier: GPL-2.0-or-later
0002 /*
0003  * Copyright (C) 2007, 2008 Freescale Semiconductor, Inc. All rights reserved.
0004  *
0005  * Author: John Rigby, <jrigby@freescale.com>, Thur Mar 29 2007
0006  *
0007  * Description:
0008  * MPC5121 ADS board setup
0009  */
0010
0011 #include <linux/kernel.h>
0012 #include <linux/io.h>
0013 #include <linux/of_platform.h>
0014
0015 #include <asm/machdep.h>
0016 #include <asm/ipic.h>
0017 #include <asm/time.h>
0018
0019 #include <sysdev/fsl_pci.h>
0020
0021 #include "mpc512x.h"
0022 #include "mpc5121_ads.h"
0023
0024 static void __init mpc5121_ads_setup_arch(void)
0025 {
0026     printk(KERN_INFO "MPC5121 ADS board from Freescale Semiconductor\n");
0027     /*
0028      * cpld regs are needed early
0029      */
0030     mpc5121_ads_cpld_map();
0031
0032     mpc512x_setup_arch();
0033 }
0034
0035 static void __init mpc5121_ads_setup_pci(void)
0036 {
0037 #ifdef CONFIG_PCI
0038     struct device_node *np;
0039
0040     for_each_compatible_node(np, "pci", "fsl,mpc5121-pci")
0041         mpc83xx_add_bridge(np);
0042 #endif
0043 }
0044
0045 static void __init mpc5121_ads_init_IRQ(void)
0046 {
0047     mpc512x_init_IRQ();
0048     mpc5121_ads_cpld_pic_init();
0049 }
0050
0051 /*
0052  * Called very early, MMU is off, device-tree isn't unflattened
0053  */
0054 static int __init mpc5121_ads_probe(void)
0055 {
0056     if (!of_machine_is_compatible("fsl,mpc5121ads"))
0057         return 0;
0058
0059     mpc512x_init_early();
0060
0061     return 1;
0062 }
0063
0064 define_machine(mpc5121_ads) {
0065     .name           = "MPC5121 ADS",
0066     .probe          = mpc5121_ads_probe,
0067     .setup_arch     = mpc5121_ads_setup_arch,
0068     .discover_phbs      = mpc5121_ads_setup_pci,
0069     .init           = mpc512x_init,
0070     .init_IRQ       = mpc5121_ads_init_IRQ,
0071     .get_irq        = ipic_get_irq,
0072     .calibrate_decr     = generic_calibrate_decr,
0073     .restart        = mpc512x_restart,
0074 };