1 files changed, 157 insertions, 0 deletions

diff --git a/arch/arm/mach-bcmring/arch.c b/arch/arm/mach-bcmring/arch.c
new file mode 100644
index 000000000000..0da693b0f7e1
--- /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