diff options
Diffstat (limited to 'arch/powerpc/platforms/85xx/socrates.c')
| -rw-r--r-- | arch/powerpc/platforms/85xx/socrates.c | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/85xx/socrates.c b/arch/powerpc/platforms/85xx/socrates.c new file mode 100644 index 000000000000..d0e8443b12c6 --- /dev/null +++ b/arch/powerpc/platforms/85xx/socrates.c @@ -0,0 +1,133 @@ +/* + * Copyright (c) 2008 Emcraft Systems + * Sergei Poselenov <sposelenov@emcraft.com> + * + * Based on MPC8560 ADS and arch/ppc tqm85xx ports + * + * Maintained by Kumar Gala (see MAINTAINERS for contact information) + * + * Copyright 2008 Freescale Semiconductor Inc. + * + * Copyright (c) 2005-2006 DENX Software Engineering + * Stefan Roese <sr@denx.de> + * + * Based on original work by + * Kumar Gala <kumar.gala@freescale.com> + * Copyright 2004 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/system.h> +#include <asm/time.h> +#include <asm/machdep.h> +#include <asm/pci-bridge.h> +#include <asm/mpic.h> +#include <asm/prom.h> +#include <mm/mmu_decl.h> +#include <asm/udbg.h> + +#include <sysdev/fsl_soc.h> +#include <sysdev/fsl_pci.h> + +#include "socrates_fpga_pic.h" + +static void __init socrates_pic_init(void) +{ + struct mpic *mpic; + struct resource r; + struct device_node *np; + + np = of_find_node_by_type(NULL, "open-pic"); + if (!np) { + printk(KERN_ERR "Could not find open-pic node\n"); + return; + } + + if (of_address_to_resource(np, 0, &r)) { + printk(KERN_ERR "Could not map mpic register space\n"); + of_node_put(np); + return; + } + + mpic = mpic_alloc(np, r.start, + MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN, + 0, 256, " OpenPIC "); + BUG_ON(mpic == NULL); + of_node_put(np); + + mpic_init(mpic); + + np = of_find_compatible_node(NULL, NULL, "abb,socrates-fpga-pic"); + if (!np) { + printk(KERN_ERR "Could not find socrates-fpga-pic node\n"); + return; + } + socrates_fpga_pic_init(np); + of_node_put(np); +} + +/* + * Setup the architecture + */ +static void __init socrates_setup_arch(void) +{ +#ifdef CONFIG_PCI + struct device_node *np; +#endif + + if (ppc_md.progress) + ppc_md.progress("socrates_setup_arch()", 0); + +#ifdef CONFIG_PCI + for_each_compatible_node(np, "pci", "fsl,mpc8540-pci") + fsl_add_bridge(np, 1); +#endif +} + +static struct of_device_id __initdata socrates_of_bus_ids[] = { + { .compatible = "simple-bus", }, + { .compatible = "gianfar", }, + {}, +}; + +static void __init socrates_init(void) +{ + of_platform_bus_probe(NULL, socrates_of_bus_ids, NULL); +} + +/* + * Called very early, device-tree isn't unflattened + */ +static int __init socrates_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + + if (of_flat_dt_is_compatible(root, "abb,socrates")) + return 1; + + return 0; +} + +define_machine(socrates) { + .name = "Socrates", + .probe = socrates_probe, + .setup_arch = socrates_setup_arch, + .init = socrates_init, + .init_IRQ = socrates_pic_init, + .get_irq = mpic_get_irq, + .restart = fsl_rstcr_restart, + .calibrate_decr = generic_calibrate_decr, + .progress = udbg_progress, +}; |