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Diffstat (limited to 'arch/powerpc/platforms/powernv/setup.c')
-rw-r--r--arch/powerpc/platforms/powernv/setup.c153
1 files changed, 153 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c
new file mode 100644
index 00000000000..569f9cc4eb0
--- /dev/null
+++ b/arch/powerpc/platforms/powernv/setup.c
@@ -0,0 +1,153 @@
+/*
+ * PowerNV setup code.
+ *
+ * Copyright 2011 IBM Corp.
+ *
+ * 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.
+ */
+
+#undef DEBUG
+
+#include <linux/cpu.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/tty.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/console.h>
+#include <linux/delay.h>
+#include <linux/irq.h>
+#include <linux/seq_file.h>
+#include <linux/of.h>
+#include <linux/interrupt.h>
+#include <linux/bug.h>
+
+#include <asm/machdep.h>
+#include <asm/firmware.h>
+#include <asm/xics.h>
+
+#include "powernv.h"
+
+static void __init pnv_setup_arch(void)
+{
+ /* Force console to hvc for now until we have sorted out the
+ * real console situation for the platform. This will make
+ * hvc_udbg work at least.
+ */
+ add_preferred_console("hvc", 0, NULL);
+
+ /* Initialize SMP */
+ pnv_smp_init();
+
+ /* XXX PCI */
+
+ /* XXX NVRAM */
+
+ /* Enable NAP mode */
+ powersave_nap = 1;
+
+ /* XXX PMCS */
+}
+
+static void __init pnv_init_early(void)
+{
+ /* XXX IOMMU */
+}
+
+static void __init pnv_init_IRQ(void)
+{
+ xics_init();
+
+ WARN_ON(!ppc_md.get_irq);
+}
+
+static void pnv_show_cpuinfo(struct seq_file *m)
+{
+ struct device_node *root;
+ const char *model = "";
+
+ root = of_find_node_by_path("/");
+ if (root)
+ model = of_get_property(root, "model", NULL);
+ seq_printf(m, "machine\t\t: PowerNV %s\n", model);
+ of_node_put(root);
+}
+
+static void pnv_restart(char *cmd)
+{
+ for (;;);
+}
+
+static void pnv_power_off(void)
+{
+ for (;;);
+}
+
+static void pnv_halt(void)
+{
+ for (;;);
+}
+
+static unsigned long __init pnv_get_boot_time(void)
+{
+ return 0;
+}
+
+static void pnv_get_rtc_time(struct rtc_time *rtc_tm)
+{
+}
+
+static int pnv_set_rtc_time(struct rtc_time *tm)
+{
+ return 0;
+}
+
+static void pnv_progress(char *s, unsigned short hex)
+{
+}
+
+#ifdef CONFIG_KEXEC
+static void pnv_kexec_cpu_down(int crash_shutdown, int secondary)
+{
+ xics_kexec_teardown_cpu(secondary);
+}
+#endif /* CONFIG_KEXEC */
+
+static int __init pnv_probe(void)
+{
+ unsigned long root = of_get_flat_dt_root();
+
+ if (!of_flat_dt_is_compatible(root, "ibm,powernv"))
+ return 0;
+
+ hpte_init_native();
+
+ pr_debug("PowerNV detected !\n");
+
+ return 1;
+}
+
+define_machine(powernv) {
+ .name = "PowerNV",
+ .probe = pnv_probe,
+ .setup_arch = pnv_setup_arch,
+ .init_early = pnv_init_early,
+ .init_IRQ = pnv_init_IRQ,
+ .show_cpuinfo = pnv_show_cpuinfo,
+ .restart = pnv_restart,
+ .power_off = pnv_power_off,
+ .halt = pnv_halt,
+ .get_boot_time = pnv_get_boot_time,
+ .get_rtc_time = pnv_get_rtc_time,
+ .set_rtc_time = pnv_set_rtc_time,
+ .progress = pnv_progress,
+ .power_save = power7_idle,
+ .calibrate_decr = generic_calibrate_decr,
+#ifdef CONFIG_KEXEC
+ .kexec_cpu_down = pnv_kexec_cpu_down,
+#endif
+};