// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright 2006 Freescale Semiconductor, Inc. All rights reserved. * * Description: * MPC832xE MDS board specific routines. */ #include <linux/stddef.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/errno.h> #include <linux/reboot.h> #include <linux/pci.h> #include <linux/kdev_t.h> #include <linux/major.h> #include <linux/console.h> #include <linux/delay.h> #include <linux/seq_file.h> #include <linux/root_dev.h> #include <linux/initrd.h> #include <linux/of_platform.h> #include <linux/of_device.h> #include <linux/atomic.h> #include <asm/time.h> #include <asm/io.h> #include <asm/machdep.h> #include <asm/ipic.h> #include <asm/irq.h> #include <asm/udbg.h> #include <sysdev/fsl_soc.h> #include <sysdev/fsl_pci.h> #include <soc/fsl/qe/qe.h> #include "mpc83xx.h" #undef DEBUG #ifdef DEBUG #define DBG(fmt...) udbg_printf(fmt) #else #define DBG(fmt...) #endif /* ************************************************************************ * * Setup the architecture * */ static void __init mpc832x_sys_setup_arch(void) { struct device_node *np; u8 __iomem *bcsr_regs = NULL; mpc83xx_setup_arch(); /* Map BCSR area */ np = of_find_node_by_name(NULL, "bcsr"); if (np) { struct resource res; of_address_to_resource(np, 0, &res); bcsr_regs = ioremap(res.start, resource_size(&res)); of_node_put(np); } #ifdef CONFIG_QUICC_ENGINE if ((np = of_find_node_by_name(NULL, "par_io")) != NULL) { par_io_init(np); of_node_put(np); for_each_node_by_name(np, "ucc") par_io_of_config(np); } if ((np = of_find_compatible_node(NULL, "network", "ucc_geth")) != NULL){ /* Reset the Ethernet PHYs */ #define BCSR8_FETH_RST 0x50 clrbits8(&bcsr_regs[8], BCSR8_FETH_RST); udelay(1000); setbits8(&bcsr_regs[8], BCSR8_FETH_RST); iounmap(bcsr_regs); of_node_put(np); } #endif /* CONFIG_QUICC_ENGINE */ } machine_device_initcall(mpc832x_mds, mpc83xx_declare_of_platform_devices); /* * Called very early, MMU is off, device-tree isn't unflattened */ static int __init mpc832x_sys_probe(void) { return of_machine_is_compatible("MPC832xMDS"); } define_machine(mpc832x_mds) { .name = "MPC832x MDS", .probe = mpc832x_sys_probe, .setup_arch = mpc832x_sys_setup_arch, .discover_phbs = mpc83xx_setup_pci, .init_IRQ = mpc83xx_ipic_init_IRQ, .get_irq = ipic_get_irq, .restart = mpc83xx_restart, .time_init = mpc83xx_time_init, .calibrate_decr = generic_calibrate_decr, .progress = udbg_progress, };