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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/powerpc/platforms/86xx/sbc8641d.c
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
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 <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> 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 <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/powerpc/platforms/86xx/sbc8641d.c')
-rw-r--r--kernel/arch/powerpc/platforms/86xx/sbc8641d.c124
1 files changed, 124 insertions, 0 deletions
diff --git a/kernel/arch/powerpc/platforms/86xx/sbc8641d.c b/kernel/arch/powerpc/platforms/86xx/sbc8641d.c
new file mode 100644
index 000000000..6810b71d5
--- /dev/null
+++ b/kernel/arch/powerpc/platforms/86xx/sbc8641d.c
@@ -0,0 +1,124 @@
+/*
+ * SBC8641D board specific routines
+ *
+ * Copyright 2008 Wind River Systems Inc.
+ *
+ * By Paul Gortmaker (see MAINTAINERS for contact information)
+ *
+ * Based largely on the 8641 HPCN support by 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 <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/mpic.h>
+
+#include <sysdev/fsl_pci.h>
+#include <sysdev/fsl_soc.h>
+
+#include "mpc86xx.h"
+
+static void __init
+sbc8641_setup_arch(void)
+{
+ if (ppc_md.progress)
+ ppc_md.progress("sbc8641_setup_arch()", 0);
+
+ printk("SBC8641 board from Wind River\n");
+
+#ifdef CONFIG_SMP
+ mpc86xx_smp_init();
+#endif
+
+ fsl_pci_assign_primary();
+}
+
+
+static void
+sbc8641_show_cpuinfo(struct seq_file *m)
+{
+ uint svid = mfspr(SPRN_SVR);
+
+ seq_printf(m, "Vendor\t\t: Wind River Systems\n");
+
+ seq_printf(m, "SVR\t\t: 0x%x\n", svid);
+}
+
+
+/*
+ * Called very early, device-tree isn't unflattened
+ */
+static int __init sbc8641_probe(void)
+{
+ unsigned long root = of_get_flat_dt_root();
+
+ if (of_flat_dt_is_compatible(root, "wind,sbc8641"))
+ return 1; /* Looks good */
+
+ 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 = "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(sbc8641, declare_of_platform_devices);
+
+define_machine(sbc8641) {
+ .name = "SBC8641D",
+ .probe = sbc8641_probe,
+ .setup_arch = sbc8641_setup_arch,
+ .init_IRQ = mpc86xx_init_irq,
+ .show_cpuinfo = sbc8641_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
+};