This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / arch / powerpc / platforms / pasemi / setup.c

diff --git a/arch/powerpc/platforms/pasemi/setup.c b/arch/powerpc/platforms/pasemi/setup.c
new file mode 100644 (file)
index 0000000..bea7d1b
--- /dev/null
+++ b/arch/powerpc/platforms/pasemi/setup.c
@@ -0,0 +1,177 @@
+/*
+ * Copyright (C) 2006 PA Semi, Inc
+ *
+ * Authors: Kip Walker, PA Semi
+ *         Olof Johansson, PA Semi
+ *
+ * Maintained by: Olof Johansson <olof@lixom.net>
+ *
+ * Based on arch/powerpc/platforms/maple/setup.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/console.h>
+#include <linux/pci.h>
+
+#include <asm/prom.h>
+#include <asm/system.h>
+#include <asm/iommu.h>
+#include <asm/machdep.h>
+#include <asm/mpic.h>
+#include <asm/smp.h>
+#include <asm/time.h>
+
+#include "pasemi.h"
+
+static void pas_restart(char *cmd)
+{
+       printk("restart unimplemented, looping...\n");
+       for (;;) ;
+}
+
+static void pas_power_off(void)
+{
+       printk("power off unimplemented, looping...\n");
+       for (;;) ;
+}
+
+static void pas_halt(void)
+{
+       pas_power_off();
+}
+
+#ifdef CONFIG_SMP
+struct smp_ops_t pas_smp_ops = {
+       .probe          = smp_mpic_probe,
+       .message_pass   = smp_mpic_message_pass,
+       .kick_cpu       = smp_generic_kick_cpu,
+       .setup_cpu      = smp_mpic_setup_cpu,
+       .give_timebase  = smp_generic_give_timebase,
+       .take_timebase  = smp_generic_take_timebase,
+};
+#endif /* CONFIG_SMP */
+
+void __init pas_setup_arch(void)
+{
+#ifdef CONFIG_SMP
+       /* Setup SMP callback */
+       smp_ops = &pas_smp_ops;
+#endif
+       /* no iommu yet */
+       pci_dma_ops = &dma_direct_ops;
+
+       /* Lookup PCI hosts */
+       pas_pci_init();
+
+#ifdef CONFIG_DUMMY_CONSOLE
+       conswitchp = &dummy_con;
+#endif
+
+       printk(KERN_DEBUG "Using default idle loop\n");
+}
+
+/* No legacy IO on our parts */
+static int pas_check_legacy_ioport(unsigned int baseport)
+{
+       return -ENODEV;
+}
+
+static __init void pas_init_IRQ(void)
+{
+       struct device_node *np;
+       struct device_node *root, *mpic_node;
+       unsigned long openpic_addr;
+       const unsigned int *opprop;
+       int naddr, opplen;
+       struct mpic *mpic;
+
+       mpic_node = NULL;
+
+       for_each_node_by_type(np, "interrupt-controller")
+               if (device_is_compatible(np, "open-pic")) {
+                       mpic_node = np;
+                       break;
+               }
+       if (!mpic_node)
+               for_each_node_by_type(np, "open-pic") {
+                       mpic_node = np;
+                       break;
+               }
+       if (!mpic_node) {
+               printk(KERN_ERR
+                       "Failed to locate the MPIC interrupt controller\n");
+               return;
+       }
+
+       /* Find address list in /platform-open-pic */
+       root = of_find_node_by_path("/");
+       naddr = prom_n_addr_cells(root);
+       opprop = get_property(root, "platform-open-pic", &opplen);
+       if (!opprop) {
+               printk(KERN_ERR "No platform-open-pic property.\n");
+               of_node_put(root);
+               return;
+       }
+       openpic_addr = of_read_number(opprop, naddr);
+       printk(KERN_DEBUG "OpenPIC addr: %lx\n", openpic_addr);
+
+       mpic = mpic_alloc(mpic_node, openpic_addr, MPIC_PRIMARY, 0, 0,
+                         " PAS-OPIC  ");
+       BUG_ON(!mpic);
+
+       mpic_assign_isu(mpic, 0, openpic_addr + 0x10000);
+       mpic_init(mpic);
+       of_node_put(mpic_node);
+       of_node_put(root);
+}
+
+static void __init pas_progress(char *s, unsigned short hex)
+{
+       printk("[%04x] : %s\n", hex, s ? s : "");
+}
+
+
+/*
+ * Called very early, MMU is off, device-tree isn't unflattened
+ */
+static int __init pas_probe(void)
+{
+       unsigned long root = of_get_flat_dt_root();
+
+       if (!of_flat_dt_is_compatible(root, "PA6T-1682M"))
+               return 0;
+
+       hpte_init_native();
+
+       return 1;
+}
+
+define_machine(pas) {
+       .name                   = "PA Semi PA6T-1682M",
+       .probe                  = pas_probe,
+       .setup_arch             = pas_setup_arch,
+       .init_IRQ               = pas_init_IRQ,
+       .get_irq                = mpic_get_irq,
+       .restart                = pas_restart,
+       .power_off              = pas_power_off,
+       .halt                   = pas_halt,
+       .get_boot_time          = pas_get_boot_time,
+       .calibrate_decr         = generic_calibrate_decr,
+       .check_legacy_ioport    = pas_check_legacy_ioport,
+       .progress               = pas_progress,
+};