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Jon Loeliger
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Kumar Gala
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Jan 24, 2008
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--- | ||
refs/heads/master: b164b9032e5210dfc94b564344d61995785c9bd7 | ||
refs/heads/master: 3490cba56f7f8a78ef4c94814c3181f09ce1e2ef |
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/* | ||
* Old U-boot compatibility for 824x | ||
* | ||
* Copyright (c) 2007 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 version 2 as published | ||
* by the Free Software Foundation. | ||
*/ | ||
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#include "ops.h" | ||
#include "stdio.h" | ||
#include "cuboot.h" | ||
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#define TARGET_824x | ||
#include "ppcboot.h" | ||
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static bd_t bd; | ||
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static void platform_fixups(void) | ||
{ | ||
void *soc; | ||
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dt_fixup_memory(bd.bi_memstart, bd.bi_memsize); | ||
dt_fixup_mac_addresses(bd.bi_enetaddr); | ||
dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 4, bd.bi_busfreq); | ||
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soc = find_node_by_devtype(NULL, "soc"); | ||
if (soc) { | ||
void *serial = NULL; | ||
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setprop(soc, "bus-frequency", &bd.bi_busfreq, | ||
sizeof(bd.bi_busfreq)); | ||
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while ((serial = find_node_by_devtype(serial, "serial"))) { | ||
if (get_parent(serial) != soc) | ||
continue; | ||
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setprop(serial, "clock-frequency", &bd.bi_busfreq, | ||
sizeof(bd.bi_busfreq)); | ||
} | ||
} | ||
} | ||
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void platform_init(unsigned long r3, unsigned long r4, unsigned long r5, | ||
unsigned long r6, unsigned long r7) | ||
{ | ||
CUBOOT_INIT(); | ||
fdt_init(_dtb_start); | ||
serial_console_init(); | ||
platform_ops.fixups = platform_fixups; | ||
} |
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/* | ||
* Board setup routines for the storcenter | ||
* | ||
* Copyright 2007 (C) Oyvind Repvik (nail@nslu2-linux.org) | ||
* Copyright 2007 Andy Wilcox, Jon Loeliger | ||
* | ||
* Based on linkstation.c by G. Liakhovetski | ||
* | ||
* This file is licensed under the terms of the GNU General Public License | ||
* version 2. This program is licensed "as is" without any warranty of | ||
* any kind, whether express or implied. | ||
*/ | ||
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#include <linux/kernel.h> | ||
#include <linux/pci.h> | ||
#include <linux/initrd.h> | ||
#include <linux/mtd/physmap.h> | ||
#include <linux/of_platform.h> | ||
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#include <asm/system.h> | ||
#include <asm/time.h> | ||
#include <asm/prom.h> | ||
#include <asm/mpic.h> | ||
#include <asm/pci-bridge.h> | ||
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#include "mpc10x.h" | ||
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#ifdef CONFIG_MTD_PHYSMAP | ||
static struct mtd_partition storcenter_physmap_partitions[] = { | ||
{ | ||
.name = "kernel", | ||
.offset = 0x000000, | ||
.size = 0x170000, | ||
}, | ||
{ | ||
.name = "rootfs", | ||
.offset = 0x170000, | ||
.size = 0x590000, | ||
}, | ||
{ | ||
.name = "uboot", | ||
.offset = 0x700000, | ||
.size = 0x040000, | ||
}, | ||
{ | ||
.name = "config", | ||
.offset = 0x740000, | ||
.size = 0x0c0000, | ||
}, | ||
}; | ||
#endif | ||
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static __initdata struct of_device_id storcenter_of_bus[] = { | ||
{ .name = "soc", }, | ||
{}, | ||
}; | ||
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static int __init storcenter_device_probe(void) | ||
{ | ||
of_platform_bus_probe(NULL, storcenter_of_bus, NULL); | ||
return 0; | ||
} | ||
machine_device_initcall(storcenter, storcenter_device_probe); | ||
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static int __init storcenter_add_bridge(struct device_node *dev) | ||
{ | ||
#ifdef CONFIG_PCI | ||
int len; | ||
struct pci_controller *hose; | ||
const int *bus_range; | ||
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printk("Adding PCI host bridge %s\n", dev->full_name); | ||
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hose = pcibios_alloc_controller(dev); | ||
if (hose == NULL) | ||
return -ENOMEM; | ||
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bus_range = of_get_property(dev, "bus-range", &len); | ||
hose->first_busno = bus_range ? bus_range[0] : 0; | ||
hose->last_busno = bus_range ? bus_range[1] : 0xff; | ||
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setup_indirect_pci(hose, MPC10X_MAPB_CNFG_ADDR, MPC10X_MAPB_CNFG_DATA, 0); | ||
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/* Interpret the "ranges" property */ | ||
/* This also maps the I/O region and sets isa_io/mem_base */ | ||
pci_process_bridge_OF_ranges(hose, dev, 1); | ||
#endif | ||
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return 0; | ||
} | ||
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static void __init storcenter_setup_arch(void) | ||
{ | ||
struct device_node *np; | ||
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#ifdef CONFIG_MTD_PHYSMAP | ||
physmap_set_partitions(storcenter_physmap_partitions, | ||
ARRAY_SIZE(storcenter_physmap_partitions)); | ||
#endif | ||
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/* Lookup PCI host bridges */ | ||
for_each_compatible_node(np, "pci", "mpc10x-pci") | ||
storcenter_add_bridge(np); | ||
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printk(KERN_INFO "IOMEGA StorCenter\n"); | ||
} | ||
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/* | ||
* Interrupt setup and service. Interrrupts on the turbostation come | ||
* from the four PCI slots plus onboard 8241 devices: I2C, DUART. | ||
*/ | ||
static void __init storcenter_init_IRQ(void) | ||
{ | ||
struct mpic *mpic; | ||
struct device_node *dnp; | ||
const void *prop; | ||
int size; | ||
phys_addr_t paddr; | ||
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dnp = of_find_node_by_type(NULL, "open-pic"); | ||
if (dnp == NULL) | ||
return; | ||
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prop = of_get_property(dnp, "reg", &size); | ||
if (prop == NULL) { | ||
of_node_put(dnp); | ||
return; | ||
} | ||
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paddr = (phys_addr_t)of_translate_address(dnp, prop); | ||
mpic = mpic_alloc(dnp, paddr, MPIC_PRIMARY | MPIC_WANTS_RESET, | ||
4, 32, " EPIC "); | ||
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of_node_put(dnp); | ||
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BUG_ON(mpic == NULL); | ||
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/* PCI IRQs */ | ||
/* | ||
* 2.6.12 patch: | ||
* openpic_set_sources(0, 5, OpenPIC_Addr + 0x10200); | ||
* openpic_set_sources(5, 2, OpenPIC_Addr + 0x11120); | ||
* first_irq, num_irqs, __iomem first_ISR | ||
* o_ss: i, src: 0, fdf50200 | ||
* o_ss: i, src: 1, fdf50220 | ||
* o_ss: i, src: 2, fdf50240 | ||
* o_ss: i, src: 3, fdf50260 | ||
* o_ss: i, src: 4, fdf50280 | ||
* o_ss: i, src: 5, fdf51120 | ||
* o_ss: i, src: 6, fdf51140 | ||
*/ | ||
mpic_assign_isu(mpic, 0, paddr + 0x10200); | ||
mpic_assign_isu(mpic, 1, paddr + 0x10220); | ||
mpic_assign_isu(mpic, 2, paddr + 0x10240); | ||
mpic_assign_isu(mpic, 3, paddr + 0x10260); | ||
mpic_assign_isu(mpic, 4, paddr + 0x10280); | ||
mpic_assign_isu(mpic, 5, paddr + 0x11120); | ||
mpic_assign_isu(mpic, 6, paddr + 0x11140); | ||
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mpic_init(mpic); | ||
} | ||
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static void storcenter_restart(char *cmd) | ||
{ | ||
local_irq_disable(); | ||
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/* Set exception prefix high - to the firmware */ | ||
_nmask_and_or_msr(0, MSR_IP); | ||
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/* Wait for reset to happen */ | ||
for (;;) ; | ||
} | ||
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static int __init storcenter_probe(void) | ||
{ | ||
unsigned long root = of_get_flat_dt_root(); | ||
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return of_flat_dt_is_compatible(root, "storcenter"); | ||
} | ||
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define_machine(storcenter){ | ||
.name = "IOMEGA StorCenter", | ||
.probe = storcenter_probe, | ||
.setup_arch = storcenter_setup_arch, | ||
.init_IRQ = storcenter_init_IRQ, | ||
.get_irq = mpic_get_irq, | ||
.restart = storcenter_restart, | ||
.calibrate_decr = generic_calibrate_decr, | ||
}; |