--- /dev/null
+/*
+ * arch/powerpc/platforms/83xx/mpc834x_sys.c
+ *
+ * MPC834x SYS board specific routines
+ *
+ * Maintainer: Kumar Gala <galak@kernel.crashing.org>
+ *
+ * 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/config.h>
+#include <linux/stddef.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/reboot.h>
+#include <linux/pci.h>
+#include <linux/kdev_t.h>
+#include <linux/major.h>
+#include <linux/console.h>
+#include <linux/delay.h>
+#include <linux/seq_file.h>
+#include <linux/root_dev.h>
+
+#include <asm/system.h>
+#include <asm/atomic.h>
+#include <asm/time.h>
+#include <asm/io.h>
+#include <asm/machdep.h>
+#include <asm/ipic.h>
+#include <asm/bootinfo.h>
+#include <asm/irq.h>
+#include <asm/prom.h>
+#include <asm/udbg.h>
+#include <sysdev/fsl_soc.h>
+
+#include "mpc83xx.h"
+
+#ifndef CONFIG_PCI
+unsigned long isa_io_base = 0;
+unsigned long isa_mem_base = 0;
+#endif
+
+#ifdef CONFIG_PCI
+static int
+mpc83xx_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
+{
+ static char pci_irq_table[][4] =
+ /*
+ * PCI IDSEL/INTPIN->INTLINE
+ * A B C D
+ */
+ {
+ {PIRQA, PIRQB, PIRQC, PIRQD}, /* idsel 0x11 */
+ {PIRQC, PIRQD, PIRQA, PIRQB}, /* idsel 0x12 */
+ {PIRQD, PIRQA, PIRQB, PIRQC}, /* idsel 0x13 */
+ {0, 0, 0, 0},
+ {PIRQA, PIRQB, PIRQC, PIRQD}, /* idsel 0x15 */
+ {PIRQD, PIRQA, PIRQB, PIRQC}, /* idsel 0x16 */
+ {PIRQC, PIRQD, PIRQA, PIRQB}, /* idsel 0x17 */
+ {PIRQB, PIRQC, PIRQD, PIRQA}, /* idsel 0x18 */
+ {0, 0, 0, 0}, /* idsel 0x19 */
+ {0, 0, 0, 0}, /* idsel 0x20 */
+ };
+
+ const long min_idsel = 0x11, max_idsel = 0x20, irqs_per_slot = 4;
+ return PCI_IRQ_TABLE_LOOKUP;
+}
+#endif /* CONFIG_PCI */
+
+/* ************************************************************************
+ *
+ * Setup the architecture
+ *
+ */
+static void __init mpc834x_sys_setup_arch(void)
+{
+ struct device_node *np;
+
+ if (ppc_md.progress)
+ ppc_md.progress("mpc834x_sys_setup_arch()", 0);
+
+ np = of_find_node_by_type(NULL, "cpu");
+ if (np != 0) {
+ unsigned int *fp =
+ (int *)get_property(np, "clock-frequency", NULL);
+ if (fp != 0)
+ loops_per_jiffy = *fp / HZ;
+ else
+ loops_per_jiffy = 50000000 / HZ;
+ of_node_put(np);
+ }
+#ifdef CONFIG_PCI
+ for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;)
+ add_bridge(np);
+
+ ppc_md.pci_swizzle = common_swizzle;
+ ppc_md.pci_map_irq = mpc83xx_map_irq;
+ ppc_md.pci_exclude_device = mpc83xx_exclude_device;
+#endif
+
+#ifdef CONFIG_ROOT_NFS
+ ROOT_DEV = Root_NFS;
+#else
+ ROOT_DEV = Root_HDA1;
+#endif
+}
+
+void __init mpc834x_sys_init_IRQ(void)
+{
+ u8 senses[8] = {
+ 0, /* EXT 0 */
+ IRQ_SENSE_LEVEL, /* EXT 1 */
+ IRQ_SENSE_LEVEL, /* EXT 2 */
+ 0, /* EXT 3 */
+#ifdef CONFIG_PCI
+ IRQ_SENSE_LEVEL, /* EXT 4 */
+ IRQ_SENSE_LEVEL, /* EXT 5 */
+ IRQ_SENSE_LEVEL, /* EXT 6 */
+ IRQ_SENSE_LEVEL, /* EXT 7 */
+#else
+ 0, /* EXT 4 */
+ 0, /* EXT 5 */
+ 0, /* EXT 6 */
+ 0, /* EXT 7 */
+#endif
+ };
+
+ ipic_init(get_immrbase() + 0x00700, 0, 0, senses, 8);
+
+ /* Initialize the default interrupt mapping priorities,
+ * in case the boot rom changed something on us.
+ */
+ ipic_set_default_priority();
+}
+
+#if defined(CONFIG_I2C_MPC) && defined(CONFIG_SENSORS_DS1374)
+extern ulong ds1374_get_rtc_time(void);
+extern int ds1374_set_rtc_time(ulong);
+
+static int __init mpc834x_rtc_hookup(void)
+{
+ struct timespec tv;
+
+ ppc_md.get_rtc_time = ds1374_get_rtc_time;
+ ppc_md.set_rtc_time = ds1374_set_rtc_time;
+
+ tv.tv_nsec = 0;
+ tv.tv_sec = (ppc_md.get_rtc_time) ();
+ do_settimeofday(&tv);
+
+ return 0;
+}
+
+late_initcall(mpc834x_rtc_hookup);
+#endif
+
+/*
+ * Called very early, MMU is off, device-tree isn't unflattened
+ */
+static int __init mpc834x_sys_probe(void)
+{
+ /* We always match for now, eventually we should look at the flat
+ dev tree to ensure this is the board we are suppose to run on
+ */
+ return 1;
+}
+
+define_machine(mpc834x_sys) {
+ .name = "MPC834x SYS",
+ .probe = mpc834x_sys_probe,
+ .setup_arch = mpc834x_sys_setup_arch,
+ .init_IRQ = mpc834x_sys_init_IRQ,
+ .get_irq = ipic_get_irq,
+ .restart = mpc83xx_restart,
+ .time_init = mpc83xx_time_init,
+ .calibrate_decr = generic_calibrate_decr,
+ .progress = udbg_progress,
+};
git://git.onelab.eu / linux-2.6.git / blobdiff