diff options
Diffstat (limited to 'arch/arm/mach-bcmring')
| -rw-r--r-- | arch/arm/mach-bcmring/arch.c | 157 | ||||
| -rw-r--r-- | arch/arm/mach-bcmring/core.h | 30 | ||||
| -rw-r--r-- | arch/arm/mach-bcmring/include/cfg_global.h | 13 | ||||
| -rw-r--r-- | arch/arm/mach-bcmring/include/cfg_global_defines.h | 40 | ||||
| -rw-r--r-- | arch/arm/mach-bcmring/include/mach/hardware.h | 60 | ||||
| -rw-r--r-- | arch/arm/mach-bcmring/include/mach/system.h | 54 |
6 files changed, 354 insertions, 0 deletions
diff --git a/arch/arm/mach-bcmring/arch.c b/arch/arm/mach-bcmring/arch.c new file mode 100644 index 0000000..0da693b --- /dev/null +++ b/arch/arm/mach-bcmring/arch.c @@ -0,0 +1,157 @@ +/***************************************************************************** +* Copyright 2003 - 2008 Broadcom Corporation. All rights reserved. +* +* Unless you and Broadcom execute a separate written software license +* agreement governing use of this software, this software is licensed to you +* under the terms of the GNU General Public License version 2, available at +* http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). +* +* Notwithstanding the above, under no circumstances may you combine this +* software in any way with any other Broadcom software provided under a +* license other than the GPL, without Broadcom's express prior written +* consent. +*****************************************************************************/ + +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/types.h> +#include <linux/sched.h> +#include <linux/interrupt.h> +#include <linux/init.h> +#include <linux/errno.h> +#include <linux/spinlock.h> +#include <linux/module.h> + +#include <linux/proc_fs.h> +#include <linux/sysctl.h> + +#include <asm/irq.h> +#include <asm/setup.h> +#include <asm/mach-types.h> +#include <asm/mach/time.h> + +#include <asm/mach/arch.h> +#include <mach/dma.h> +#include <mach/hardware.h> +#include <mach/csp/mm_io.h> +#include <mach/csp/chipcHw_def.h> +#include <mach/csp/chipcHw_inline.h> + +#include <cfg_global.h> + +#include "core.h" + +HW_DECLARE_SPINLOCK(arch) +HW_DECLARE_SPINLOCK(gpio) +#if defined(CONFIG_DEBUG_SPINLOCK) + EXPORT_SYMBOL(bcmring_gpio_reg_lock); +#endif + +/* FIXME: temporary solution */ +#define BCM_SYSCTL_REBOOT_WARM 1 +#define CTL_BCM_REBOOT 112 + +/* sysctl */ +int bcmring_arch_warm_reboot; /* do a warm reboot on hard reset */ + +static struct ctl_table_header *bcmring_sysctl_header; + +static struct ctl_table bcmring_sysctl_warm_reboot[] = { + { + .ctl_name = BCM_SYSCTL_REBOOT_WARM, + .procname = "warm", + .data = &bcmring_arch_warm_reboot, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = &proc_dointvec}, + {} +}; + +static struct ctl_table bcmring_sysctl_reboot[] = { + { + .ctl_name = CTL_BCM_REBOOT, + .procname = "reboot", + .mode = 0555, + .child = bcmring_sysctl_warm_reboot}, + {} +}; + +static struct platform_device nand_device = { + .name = "bcm-nand", + .id = -1, +}; + +static struct platform_device *devices[] __initdata = { + &nand_device, +}; + +/**************************************************************************** +* +* Called from the customize_machine function in arch/arm/kernel/setup.c +* +* The customize_machine function is tagged as an arch_initcall +* (see include/linux/init.h for the order that the various init sections +* are called in. +* +*****************************************************************************/ +static void __init bcmring_init_machine(void) +{ + + bcmring_sysctl_header = register_sysctl_table(bcmring_sysctl_reboot); + + /* Enable spread spectrum */ + chipcHw_enableSpreadSpectrum(); + + platform_add_devices(devices, ARRAY_SIZE(devices)); + + bcmring_amba_init(); + + dma_init(); +} + +/**************************************************************************** +* +* Called from setup_arch (in arch/arm/kernel/setup.c) to fixup any tags +* passed in by the boot loader. +* +*****************************************************************************/ + +static void __init bcmring_fixup(struct machine_desc *desc, + struct tag *t, char **cmdline, struct meminfo *mi) { +#ifdef CONFIG_BLK_DEV_INITRD + printk(KERN_NOTICE "bcmring_fixup\n"); + t->hdr.tag = ATAG_CORE; + t->hdr.size = tag_size(tag_core); + t->u.core.flags = 0; + t->u.core.pagesize = PAGE_SIZE; + t->u.core.rootdev = 31 << 8 | 0; + t = tag_next(t); + + t->hdr.tag = ATAG_MEM; + t->hdr.size = tag_size(tag_mem32); + t->u.mem.start = CFG_GLOBAL_RAM_BASE; + t->u.mem.size = CFG_GLOBAL_RAM_SIZE; + + t = tag_next(t); + + t->hdr.tag = ATAG_NONE; + t->hdr.size = 0; +#endif +} + +/**************************************************************************** +* +* Machine Description +* +*****************************************************************************/ + +MACHINE_START(BCMRING, "BCMRING") + /* Maintainer: Broadcom Corporation */ + .phys_io = MM_IO_START, + .io_pg_offst = (MM_IO_BASE >> 18) & 0xfffc, + .fixup = bcmring_fixup, + .map_io = bcmring_map_io, + .init_irq = bcmring_init_irq, + .timer = &bcmring_timer, + .init_machine = bcmring_init_machine +MACHINE_END diff --git a/arch/arm/mach-bcmring/core.h b/arch/arm/mach-bcmring/core.h new file mode 100644 index 0000000..b197ba4 --- /dev/null +++ b/arch/arm/mach-bcmring/core.h @@ -0,0 +1,30 @@ +/* + * linux/arch/arm/mach-versatile/core.h + * + * Copyright (C) 2004 ARM Limited + * Copyright (C) 2000 Deep Blue Solutions Ltd + * + * 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. + * + * 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 + */ +/* Portions copyright Broadcom 2008 */ +#ifndef __ASM_ARCH_BCMRING_H +#define __ASM_ARCH_BCMRING_H + +void __init bcmring_amba_init(void); +void __init bcmring_map_io(void); +void __init bcmring_init_irq(void); + +extern struct sys_timer bcmring_timer; +#endif diff --git a/arch/arm/mach-bcmring/include/cfg_global.h b/arch/arm/mach-bcmring/include/cfg_global.h new file mode 100644 index 0000000..f01da87 --- /dev/null +++ b/arch/arm/mach-bcmring/include/cfg_global.h @@ -0,0 +1,13 @@ +#ifndef _CFG_GLOBAL_H_ +#define _CFG_GLOBAL_H_ + +#include <cfg_global_defines.h> + +#define CFG_GLOBAL_CHIP BCM11107 +#define CFG_GLOBAL_CHIP_FAMILY CFG_GLOBAL_CHIP_FAMILY_BCMRING +#define CFG_GLOBAL_CHIP_REV 0xB0 +#define CFG_GLOBAL_RAM_SIZE 0x10000000 +#define CFG_GLOBAL_RAM_BASE 0x00000000 +#define CFG_GLOBAL_RAM_RESERVED_SIZE 0x000000 + +#endif /* _CFG_GLOBAL_H_ */ diff --git a/arch/arm/mach-bcmring/include/cfg_global_defines.h b/arch/arm/mach-bcmring/include/cfg_global_defines.h new file mode 100644 index 0000000..b5beb0b3 --- /dev/null +++ b/arch/arm/mach-bcmring/include/cfg_global_defines.h @@ -0,0 +1,40 @@ +/***************************************************************************** +* Copyright 2006 - 2008 Broadcom Corporation. All rights reserved. +* +* Unless you and Broadcom execute a separate written software license +* agreement governing use of this software, this software is licensed to you +* under the terms of the GNU General Public License version 2, available at +* http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). +* +* Notwithstanding the above, under no circumstances may you combine this +* software in any way with any other Broadcom software provided under a +* license other than the GPL, without Broadcom's express prior written +* consent. +*****************************************************************************/ + +#ifndef CFG_GLOBAL_DEFINES_H +#define CFG_GLOBAL_DEFINES_H + +/* CHIP */ +#define BCM1103 1 + +#define BCM1191 4 +#define BCM2153 5 +#define BCM2820 6 + +#define BCM2826 8 +#define FPGA11107 9 +#define BCM11107 10 +#define BCM11109 11 +#define BCM11170 12 +#define BCM11110 13 +#define BCM11211 14 + +/* CFG_GLOBAL_CHIP_FAMILY types */ +#define CFG_GLOBAL_CHIP_FAMILY_NONE 0 +#define CFG_GLOBAL_CHIP_FAMILY_BCM116X 2 +#define CFG_GLOBAL_CHIP_FAMILY_BCMRING 4 +#define CFG_GLOBAL_CHIP_FAMILY_BCM1103 8 + +#define IMAGE_HEADER_SIZE_CHECKSUM 4 +#endif diff --git a/arch/arm/mach-bcmring/include/mach/hardware.h b/arch/arm/mach-bcmring/include/mach/hardware.h new file mode 100644 index 0000000..447eb34 --- /dev/null +++ b/arch/arm/mach-bcmring/include/mach/hardware.h @@ -0,0 +1,60 @@ +/* + * + * This file contains the hardware definitions of the BCMRing. + * + * Copyright (C) 1999 ARM Limited. + * + * 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. + * + * 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 + */ +#ifndef __ASM_ARCH_HARDWARE_H +#define __ASM_ARCH_HARDWARE_H + +#include <asm/sizes.h> +#include <mach/memory.h> +#include <cfg_global.h> +#include <mach/csp/mm_io.h> + +/* Hardware addresses of major areas. + * *_START is the physical address + * *_SIZE is the size of the region + * *_BASE is the virtual address + */ +#define RAM_START PHYS_OFFSET + +#define RAM_SIZE (CFG_GLOBAL_RAM_SIZE-CFG_GLOBAL_RAM_SIZE_RESERVED) +#define RAM_BASE PAGE_OFFSET + +#define pcibios_assign_all_busses() 1 + +/* Macros to make managing spinlocks a bit more controlled in terms of naming. */ +/* See reg_gpio.h, reg_irq.h, arch.c, gpio.c for example usage. */ +#if defined(__KERNEL__) +#define HW_DECLARE_SPINLOCK(name) DEFINE_SPINLOCK(bcmring_##name##_reg_lock); +#define HW_EXTERN_SPINLOCK(name) extern spinlock_t bcmring_##name##_reg_lock; +#define HW_IRQ_SAVE(name, val) spin_lock_irqsave(&bcmring_##name##_reg_lock, (val)) +#define HW_IRQ_RESTORE(name, val) spin_unlock_irqrestore(&bcmring_##name##_reg_lock, (val)) +#else +#define HW_DECLARE_SPINLOCK(name) +#define HW_EXTERN_SPINLOCK(name) +#define HW_IRQ_SAVE(name, val) {(void)(name); (void)(val); } +#define HW_IRQ_RESTORE(name, val) {(void)(name); (void)(val); } +#endif + +#ifndef HW_IO_PHYS_TO_VIRT +#define HW_IO_PHYS_TO_VIRT MM_IO_PHYS_TO_VIRT +#endif +#define HW_IO_VIRT_TO_PHYS MM_IO_VIRT_TO_PHYS + +#endif diff --git a/arch/arm/mach-bcmring/include/mach/system.h b/arch/arm/mach-bcmring/include/mach/system.h new file mode 100644 index 0000000..cdbf93c --- /dev/null +++ b/arch/arm/mach-bcmring/include/mach/system.h @@ -0,0 +1,54 @@ +/* + * + * Copyright (C) 1999 ARM Limited + * Copyright (C) 2000 Deep Blue Solutions Ltd + * + * 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. + * + * 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 + */ +#ifndef __ASM_ARCH_SYSTEM_H +#define __ASM_ARCH_SYSTEM_H + +#include <mach/csp/chipcHw_inline.h> + +extern int bcmring_arch_warm_reboot; + +static inline void arch_idle(void) +{ + cpu_do_idle(); +} + +static inline void arch_reset(char mode, char *cmd) +{ + printk("arch_reset:%c %x\n", mode, bcmring_arch_warm_reboot); + + if (mode == 'h') { + /* Reboot configured in proc entry */ + if (bcmring_arch_warm_reboot) { + printk("warm reset\n"); + /* Issue Warm reset (do not reset ethernet switch, keep alive) */ + chipcHw_reset(chipcHw_REG_SOFT_RESET_CHIP_WARM); + } else { + /* Force reset of everything */ + printk("force reset\n"); + chipcHw_reset(chipcHw_REG_SOFT_RESET_CHIP_SOFT); + } + } else { + /* Force reset of everything */ + printk("force reset\n"); + chipcHw_reset(chipcHw_REG_SOFT_RESET_CHIP_SOFT); + } +} + +#endif |
