diff options
Diffstat (limited to 'arch/powerpc/platforms/85xx/p2040_rdb.c')
-rw-r--r-- | arch/powerpc/platforms/85xx/p2040_rdb.c | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/85xx/p2040_rdb.c b/arch/powerpc/platforms/85xx/p2040_rdb.c new file mode 100644 index 0000000..32b56ac --- /dev/null +++ b/arch/powerpc/platforms/85xx/p2040_rdb.c @@ -0,0 +1,88 @@ +/* + * P2040 RDB Setup + * + * Copyright 2011 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/kernel.h> +#include <linux/pci.h> +#include <linux/kdev_t.h> +#include <linux/delay.h> +#include <linux/interrupt.h> +#include <linux/phy.h> + +#include <asm/system.h> +#include <asm/time.h> +#include <asm/machdep.h> +#include <asm/pci-bridge.h> +#include <mm/mmu_decl.h> +#include <asm/prom.h> +#include <asm/udbg.h> +#include <asm/mpic.h> + +#include <linux/of_platform.h> +#include <sysdev/fsl_soc.h> +#include <sysdev/fsl_pci.h> +#include <asm/ehv_pic.h> + +#include "corenet_ds.h" + +/* + * Called very early, device-tree isn't unflattened + */ +static int __init p2040_rdb_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); +#ifdef CONFIG_SMP + extern struct smp_ops_t smp_85xx_ops; +#endif + + if (of_flat_dt_is_compatible(root, "fsl,P2040RDB")) + return 1; + + /* Check if we're running under the Freescale hypervisor */ + if (of_flat_dt_is_compatible(root, "fsl,P2040RDB-hv")) { + ppc_md.init_IRQ = ehv_pic_init; + ppc_md.get_irq = ehv_pic_get_irq; + ppc_md.restart = fsl_hv_restart; + ppc_md.power_off = fsl_hv_halt; + ppc_md.halt = fsl_hv_halt; +#ifdef CONFIG_SMP + /* + * Disable the timebase sync operations because we can't write + * to the timebase registers under the hypervisor. + */ + smp_85xx_ops.give_timebase = NULL; + smp_85xx_ops.take_timebase = NULL; +#endif + return 1; + } + + return 0; +} + +define_machine(p2040_rdb) { + .name = "P2040 RDB", + .probe = p2040_rdb_probe, + .setup_arch = corenet_ds_setup_arch, + .init_IRQ = corenet_ds_pic_init, +#ifdef CONFIG_PCI + .pcibios_fixup_bus = fsl_pcibios_fixup_bus, +#endif + .get_irq = mpic_get_coreint_irq, + .restart = fsl_rstcr_restart, + .calibrate_decr = generic_calibrate_decr, + .progress = udbg_progress, + .power_save = e500_idle, +}; + +machine_device_initcall(p2040_rdb, corenet_ds_publish_devices); + +#ifdef CONFIG_SWIOTLB +machine_arch_initcall(p2040_rdb, swiotlb_setup_bus_notifier); +#endif |