zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/arch/arm/mach-bcmring/arch.c b/ap/os/linux/linux-3.4.x/arch/arm/mach-bcmring/arch.c
new file mode 100644
index 0000000..45c97b1
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/arch/arm/mach-bcmring/arch.c
@@ -0,0 +1,199 @@
+/*****************************************************************************
+* 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/pmu.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
+
+/* sysctl */
+static int bcmring_arch_warm_reboot; /* do a warm reboot on hard reset */
+
+static void bcmring_restart(char mode, const 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);
+ }
+}
+
+static struct ctl_table_header *bcmring_sysctl_header;
+
+static struct ctl_table bcmring_sysctl_warm_reboot[] = {
+ {
+ .procname = "warm",
+ .data = &bcmring_arch_warm_reboot,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec},
+ {}
+};
+
+static struct ctl_table bcmring_sysctl_reboot[] = {
+ {
+ .procname = "reboot",
+ .mode = 0555,
+ .child = bcmring_sysctl_warm_reboot},
+ {}
+};
+
+static struct resource nand_resource[] = {
+ [0] = {
+ .start = MM_ADDR_IO_NAND,
+ .end = MM_ADDR_IO_NAND + 0x1000 - 1,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device nand_device = {
+ .name = "bcm-nand",
+ .id = -1,
+ .resource = nand_resource,
+ .num_resources = ARRAY_SIZE(nand_resource),
+};
+
+static struct resource pmu_resource = {
+ .start = IRQ_PMUIRQ,
+ .end = IRQ_PMUIRQ,
+ .flags = IORESOURCE_IRQ,
+};
+
+static struct platform_device pmu_device = {
+ .name = "arm-pmu",
+ .id = ARM_PMU_DEVICE_CPU,
+ .resource = &pmu_resource,
+ .num_resources = 1,
+};
+
+
+static struct platform_device *devices[] __initdata = {
+ &nand_device,
+ &pmu_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 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 */
+ .fixup = bcmring_fixup,
+ .map_io = bcmring_map_io,
+ .init_early = bcmring_init_early,
+ .init_irq = bcmring_init_irq,
+ .timer = &bcmring_timer,
+ .init_machine = bcmring_init_machine,
+ .restart = bcmring_restart,
+MACHINE_END