From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c | 161 ++++++++++++++++++++++ 1 file changed, 161 insertions(+) create mode 100644 kernel/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c (limited to 'kernel/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c') diff --git a/kernel/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c b/kernel/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c new file mode 100644 index 000000000..07ccb1b0c --- /dev/null +++ b/kernel/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c @@ -0,0 +1,161 @@ +/* + * MPC86xx HPCN board specific routines + * + * Recode: ZHANG WEI + * Initial author: Xianghua Xiao + * + * Copyright 2006 Freescale Semiconductor Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include + +#include + +#include +#include + +#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) +{ + unsigned long root = of_get_flat_dt_root(); + + if (of_flat_dt_is_compatible(root, "fsl,mpc8641hpcn")) + return 1; /* Looks good */ + + /* Be nice and don't give silent boot death. Delete this in 2.6.27 */ + if (of_flat_dt_is_compatible(root, "mpc86xx")) { + pr_warning("WARNING: your dts/dtb is old. You must update before the next kernel release\n"); + return 1; + } + + return 0; +} + +static long __init +mpc86xx_time_init(void) +{ + unsigned int temp; + + /* Set the time base to zero */ + mtspr(SPRN_TBWL, 0); + mtspr(SPRN_TBWU, 0); + + temp = mfspr(SPRN_HID0); + temp |= HID0_TBEN; + mtspr(SPRN_HID0, temp); + asm volatile("isync"); + + return 0; +} + +static const struct of_device_id of_bus_ids[] __initconst = { + { .compatible = "simple-bus", }, + { .compatible = "fsl,srio", }, + { .compatible = "gianfar", }, + { .compatible = "fsl,mpc8641-pcie", }, + {}, +}; + +static int __init declare_of_platform_devices(void) +{ + of_platform_bus_probe(NULL, of_bus_ids, NULL); + + return 0; +} +machine_arch_initcall(mpc86xx_hpcn, declare_of_platform_devices); +machine_arch_initcall(mpc86xx_hpcn, swiotlb_setup_bus_notifier); + +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, + .restart = fsl_rstcr_restart, + .time_init = mpc86xx_time_init, + .calibrate_decr = generic_calibrate_decr, + .progress = udbg_progress, +#ifdef CONFIG_PCI + .pcibios_fixup_bus = fsl_pcibios_fixup_bus, +#endif +}; -- cgit 1.2.3-korg