/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
http://github.com/mirrors/linux · C · 134 lines · 92 code · 29 blank · 13 comment · 7 complexity · 0bf45a95c9264918420b889c676d2594 MD5 · raw file
- // SPDX-License-Identifier: GPL-2.0-or-later
- /*
- * MPC86xx HPCN board specific routines
- *
- * Recode: ZHANG WEI <wei.zhang@freescale.com>
- * Initial author: Xianghua Xiao <x.xiao@freescale.com>
- *
- * Copyright 2006 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/prom.h>
- #include <mm/mmu_decl.h>
- #include <asm/udbg.h>
- #include <asm/swiotlb.h>
- #include <asm/mpic.h>
- #include <sysdev/fsl_pci.h>
- #include <sysdev/fsl_soc.h>
- #include "mpc86xx.h"
- #undef DEBUG
- #ifdef DEBUG
- #define DBG(fmt...) do { printk(KERN_ERR fmt); } while(0)
- #else
- #define DBG(fmt...) do { } while(0)
- #endif
- #ifdef CONFIG_PCI
- extern int uli_exclude_device(struct pci_controller *hose,
- u_char bus, u_char devfn);
- static int mpc86xx_exclude_device(struct pci_controller *hose,
- u_char bus, u_char devfn)
- {
- if (hose->dn == fsl_pci_primary)
- return uli_exclude_device(hose, bus, devfn);
- return PCIBIOS_SUCCESSFUL;
- }
- #endif /* CONFIG_PCI */
- static void __init
- mpc86xx_hpcn_setup_arch(void)
- {
- if (ppc_md.progress)
- ppc_md.progress("mpc86xx_hpcn_setup_arch()", 0);
- #ifdef CONFIG_PCI
- ppc_md.pci_exclude_device = mpc86xx_exclude_device;
- #endif
- printk("MPC86xx HPCN board from Freescale Semiconductor\n");
- #ifdef CONFIG_SMP
- mpc86xx_smp_init();
- #endif
- fsl_pci_assign_primary();
- swiotlb_detect_4g();
- }
- static void
- mpc86xx_hpcn_show_cpuinfo(struct seq_file *m)
- {
- uint svid = mfspr(SPRN_SVR);
- seq_printf(m, "Vendor\t\t: Freescale Semiconductor\n");
- seq_printf(m, "SVR\t\t: 0x%x\n", svid);
- }
- /*
- * Called very early, device-tree isn't unflattened
- */
- static int __init mpc86xx_hpcn_probe(void)
- {
- if (of_machine_is_compatible("fsl,mpc8641hpcn"))
- return 1; /* Looks good */
- /* Be nice and don't give silent boot death. Delete this in 2.6.27 */
- if (of_machine_is_compatible("mpc86xx")) {
- pr_warn("WARNING: your dts/dtb is old. You must update before the next kernel release.\n");
- return 1;
- }
- return 0;
- }
- static const struct of_device_id of_bus_ids[] __initconst = {
- { .compatible = "fsl,srio", },
- {},
- };
- static int __init declare_of_platform_devices(void)
- {
- mpc86xx_common_publish_devices();
- of_platform_bus_probe(NULL, of_bus_ids, NULL);
- return 0;
- }
- machine_arch_initcall(mpc86xx_hpcn, declare_of_platform_devices);
- define_machine(mpc86xx_hpcn) {
- .name = "MPC86xx HPCN",
- .probe = mpc86xx_hpcn_probe,
- .setup_arch = mpc86xx_hpcn_setup_arch,
- .init_IRQ = mpc86xx_init_irq,
- .show_cpuinfo = mpc86xx_hpcn_show_cpuinfo,
- .get_irq = mpic_get_irq,
- .time_init = mpc86xx_time_init,
- .calibrate_decr = generic_calibrate_decr,
- .progress = udbg_progress,
- #ifdef CONFIG_PCI
- .pcibios_fixup_bus = fsl_pcibios_fixup_bus,
- #endif
- };