1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * arch/powerpc/platforms/83xx/mpc834x_itx.c 4 * 5 * MPC834x ITX board specific routines 6 * 7 * Maintainer: Kumar Gala <galak@kernel.crashing.org> 8 */ 9 10 #include <linux/stddef.h> 11 #include <linux/kernel.h> 12 #include <linux/init.h> 13 #include <linux/errno.h> 14 #include <linux/reboot.h> 15 #include <linux/pci.h> 16 #include <linux/kdev_t.h> 17 #include <linux/major.h> 18 #include <linux/console.h> 19 #include <linux/delay.h> 20 #include <linux/seq_file.h> 21 #include <linux/root_dev.h> 22 #include <linux/of_platform.h> 23 24 #include <linux/atomic.h> 25 #include <asm/time.h> 26 #include <asm/io.h> 27 #include <asm/machdep.h> 28 #include <asm/ipic.h> 29 #include <asm/irq.h> 30 #include <asm/udbg.h> 31 #include <sysdev/fsl_soc.h> 32 #include <sysdev/fsl_pci.h> 33 34 #include "mpc83xx.h" 35 36 static const struct of_device_id mpc834x_itx_ids[] __initconst = { 37 { .compatible = "fsl,pq2pro-localbus", }, 38 {}, 39 }; 40 41 static int __init mpc834x_itx_declare_of_platform_devices(void) 42 { 43 mpc83xx_declare_of_platform_devices(); 44 return of_platform_bus_probe(NULL, mpc834x_itx_ids, NULL); 45 } 46 machine_device_initcall(mpc834x_itx, mpc834x_itx_declare_of_platform_devices); 47 48 /* ************************************************************************ 49 * 50 * Setup the architecture 51 * 52 */ 53 static void __init mpc834x_itx_setup_arch(void) 54 { 55 mpc83xx_setup_arch(); 56 57 mpc834x_usb_cfg(); 58 } 59 60 /* 61 * Called very early, MMU is off, device-tree isn't unflattened 62 */ 63 static int __init mpc834x_itx_probe(void) 64 { 65 return of_machine_is_compatible("MPC834xMITX"); 66 } 67 68 define_machine(mpc834x_itx) { 69 .name = "MPC834x ITX", 70 .probe = mpc834x_itx_probe, 71 .setup_arch = mpc834x_itx_setup_arch, 72 .discover_phbs = mpc83xx_setup_pci, 73 .init_IRQ = mpc83xx_ipic_init_IRQ, 74 .get_irq = ipic_get_irq, 75 .restart = mpc83xx_restart, 76 .time_init = mpc83xx_time_init, 77 .calibrate_decr = generic_calibrate_decr, 78 .progress = udbg_progress, 79 }; 80